阅读说明：本技术 一种致密岩地质勘探取样钻井系统及其工作方法 (Tight rock geological exploration sampling drilling system and working method thereof ) 是由 王涛 杨亚洲 于 2020-12-01 设计创作，主要内容包括：一种致密岩地质勘探取样钻井系统,包括卡车、普通钻头、地质取芯专用钻头、电动卡瓦、卡瓦驱动电机、龙门吊装置、钻井导向管组件、顶驱、供水装置和排污装置,卡车包括车头和车身,以车头朝向为前向,车身上设置车厢底板,车厢底板的中部开设有圆孔,电动卡瓦固定安装在车厢底板的下表面,卡瓦驱动电机驱动连接电动卡瓦,龙门吊装置固定安装在车厢底板上,钻井导向管组件安装在车厢底板的中部,龙门吊装置的缆索与顶驱固定连接,供水装置和排污装置均设置在车厢底板上。本发明整个作业所用的装置及设备均在可移动式卡车上实现,具有完备的机动性,取芯作业过程不收地形和地貌的限制,快速精准,为地质勘探取样提供了一种新思路及装置。(The utility model provides a tight rock geological exploration sampling drilling system, including the truck, ordinary drill bit, the special drill bit of geological coring, electronic slips, slips driving motor, gantry crane device, well drilling guide tube subassembly, the top is driven, water supply installation and waste fitting discharging, the truck includes locomotive and automobile body, it is preceding to use the locomotive orientation, set up the platform floor on the automobile body, the round hole has been seted up at the middle part of platform floor, electronic slips fixed mounting is at the lower surface of platform floor, slips driving motor drives and connects electronic slips, gantry crane device fixed mounting is on the platform floor, well drilling guide tube subassembly is installed at the middle part of platform floor, the cable and the top drive fixed connection that gantry crane device put, water supply installation and waste fitting discharging all set up on the platform floor. The device and equipment used in the whole operation of the invention are realized on a movable truck, the invention has complete maneuverability, the coring operation process is not limited by terrain and landform, the speed and the accuracy are high, and a new thought and a new device are provided for geological exploration sampling.)

1. A tight rock geological exploration sampling drilling system which characterized in that: the drill bit comprises a truck, a common drill bit, a geological coring special drill bit, an electric slip, a slip driving motor, a gantry crane device, a drilling guide pipe assembly, a top drive, a water supply device and a sewage discharge device, wherein the truck comprises a truck head and a truck body, the truck head is arranged in the front direction, a carriage bottom plate is arranged on the truck body, the common drill bit and the geological coring special drill bit are both arranged on the carriage bottom plate, an up-and-down through round hole is formed in the middle of the carriage bottom plate, the electric slip is fixedly arranged in the middle of the lower surface of the carriage bottom plate and is positioned under the round hole, the slip driving motor is fixedly arranged in the middle of the left side of the lower surface of the carriage bottom plate and is in driving connection with the electric slip, the gantry crane device is fixedly arranged on the carriage bottom plate along the front-and-back direction, the water supply device and the sewage discharging device are both arranged on the carriage bottom plate, a first fixing frame is fixedly mounted on the front side portion of the carriage bottom plate, a plurality of drill rods are placed on the first fixing frame, a second fixing frame is fixedly mounted on the rear side portion of the carriage bottom plate, and a plurality of stratum well casings are placed on the second fixing frame.

2. The tight rock geological exploration sampling drilling system of claim 1, wherein: the gantry crane device comprises a horizontal frame, a horizontal sliding plate, a cable reel and a cable winding motor, wherein the horizontal frame consists of two first horizontal guide rails and two first vertical support plates, the length directions of the two first horizontal guide rails are horizontally arranged along the front-back direction, the two first horizontal guide rails are arranged side by side left and right, the two first vertical support plates are vertically arranged along the left-right direction, the two first vertical support plates are arranged side by side front and back, the first vertical support plate at the front side is fixedly connected at the front ends of the two first horizontal guide rails, the first vertical support plate at the rear side is fixedly connected at the rear ends of the two first horizontal guide rails, four vertical stand columns are fixedly connected on a carriage bottom plate, the vertical projections of the four vertical stand columns are positioned at the four corners of a rectangle, the bottom of the first horizontal guide rail at the left side is fixedly connected at the tops of the two vertical stand columns at the, the bottom of a horizontal sliding plate is connected to two first horizontal guide rails in a sliding mode, the middle of the horizontal sliding plate is provided with a rope penetrating long hole which is through up and down, the middle of the horizontal sliding plate is fixedly provided with a reel bracket which is positioned right above the rope penetrating long hole, a cable reel is rotatably arranged on the reel bracket, a cable winding motor is fixedly arranged in the middle of the right side of the horizontal sliding plate, a central shaft of the cable reel and a power shaft of the cable winding motor are horizontally arranged along the left and right directions, the left end of the power shaft of the cable winding motor is in transmission connection with the right end of the central shaft of the cable reel, a coiled cable is wound on the cable reel, the extending end of the cable downwards passes through the rope penetrating long hole and is fixedly connected with the upper end of a top drive, two racks are fixedly connected between two first vertical support plates, the two racks, the periphery of the horizontal sliding plate is respectively and fixedly provided with a vertical servo speed reducing motor, the lower end of a power shaft of the vertical servo speed reducing motor downwards penetrates through the horizontal sliding plate and is fixedly provided with driving gears, the two driving gears on the left side are in transmission connection with the rack on the left side, and the two driving gears on the right side are in transmission connection with the rack on the left side;

the first vertical extension board leading flank of front side, the first vertical extension board trailing flank of rear side, the equal fixed mounting in upper surface front side middle part and the rear side middle part of horizontal sliding plate has pipeline leading wheel group seat, the pipeline leading wheel group seat of installation on the first vertical extension board leading flank of front side includes door style of calligraphy extension board and two leading wheel constitutions, door style of calligraphy extension board upside, downside and front side are all uncovered, door style of calligraphy extension board left and right sides board front side fixed connection is on the first vertical extension board trailing flank of rear side, around two leading wheels side by side and the center pin is along left and right sides direction level setting, both ends rotate respectively and install on the left and right sides board of door style of calligraphy extension board about the center pin of two leading wheels.

3. The tight rock geological exploration sampling drilling system of claim 2, wherein: the well drilling guide pipe assembly comprises a first guide pipe and a second guide pipe, the center lines of the first guide pipe, the second guide pipe and a round hole are overlapped, the lower end of the first guide pipe is arranged at the center of the round hole and is butted with a center hole of an electric slip up and down, the outer circumference of the lower end of the first guide pipe is fixedly connected with four connecting rods arranged in a circumferential array, the connecting rods are arranged along the radial direction of the first guide pipe, the outer ends of the four connecting rods are fixedly connected on the inner circle of the round hole, the outer diameter of the second guide pipe is the same as the inner diameter of the first guide pipe, the second guide pipe is inserted into the first guide pipe, the upper side part of the second guide pipe extends out of the upper end of the first guide pipe, the left side wall and the right side wall of the first guide pipe are vertically provided with guide long holes, and the lower side part of the left side wall and the lower side part of the right side wall of the, the left limiting guide rod correspondingly penetrates through and is inserted in the left guiding long hole and is in sliding connection with the left guiding long hole, the right limiting guide rod correspondingly penetrates through and is inserted in the right guiding long hole and is in sliding connection with the right guiding long hole, and two groups of connecting rod driving devices for driving the second guiding pipe to move up and down are fixedly installed on the bottom plate of the carriage;

the two groups of connecting rod driving devices have the same structure and are symmetrically arranged in the front and back direction of the first guide pipe, the connecting rod driving device at the rear side comprises a horizontal servo speed reducing motor, a horizontal lead screw, a sliding support and a first connecting rod, the horizontal servo speed reducing motor and the horizontal lead screw are horizontally arranged along the front and back direction, two second horizontal guide rails positioned between a round hole and the rear side edge of the carriage bottom plate are fixedly arranged on the carriage bottom plate along the front and back direction, the two second horizontal guide rails are arranged side by side in the left and right direction, the horizontal lead screw is positioned in the middle of the two second horizontal guide rails, second vertical support plates are fixedly connected with the front side part and the rear side part of the two second horizontal guide rails, the second vertical support plates are vertically arranged along the left and right direction, the horizontal servo speed reducing motor is fixedly arranged on the rear side of the second vertical support plate at the rear side, and the front end, the front end of the horizontal screw rod is rotatably arranged on a second vertical support plate on the front side, the middle part of the sliding support is in threaded connection with the horizontal screw rod, the left side and the right side of the bottom of the sliding support are respectively in sliding connection with two second horizontal guide rails, the first connecting rod is obliquely arranged in a high-back manner, the lower end of the first connecting rod is hinged on the sliding support, the upper end of the first connecting rod is hinged on the upper side part of the back side wall of the second guide pipe, and an upper end hinged shaft and a lower end hinged shaft of the first connecting rod are horizontally arranged along the left-right direction;

the excircle of the upper end of the second guide pipe is fixedly connected with a first annular support, the outer circumference of the upper side part of the second guide pipe is connected with a second annular support which is positioned under the first annular support and sleeved on the second guide pipe in a sliding way, two first hydraulic cylinders are hinged between the first annular support and the second annular support, the two first hydraulic cylinders are symmetrically arranged at the front side and the rear side of the second guide pipe in a front-back way, a plurality of second connecting rods arranged in a circumferential array are arranged around the second guide pipe, the upper end of each second connecting rod is hinged on the first annular support, the lower end of each second connecting rod is fixedly provided with a foundation bolt fixing seat, the upper side part of each second connecting rod is hinged with a third connecting rod, the lower end of each third connecting rod is hinged on the second annular support, the upper end hinged shaft of the second connecting rod, the upper end hinged shaft and the lower end of the third connecting rod are horizontally arranged and are vertical to the length direction of the second, the first annular support, each second connecting rod, each third connecting rod and the second annular support form a drilling guide pipe fixing frame similar to an umbrella framework structure.

4. The tight rock geological exploration sampling drilling system of claim 3, wherein: the water supply device comprises a water supply tank, a high-pressure water supply pump, a high-pressure water inlet pipeline and a high-pressure water inlet pipe reel, wherein the water supply tank and the high-pressure water supply pump are fixedly arranged on the left side part of the front side of the carriage bottom plate, the high-pressure water inlet pipe reel is rotatably arranged on a first fixed frame, a water outlet of the water supply tank is connected with a central water inlet of the high-pressure water inlet pipe reel through a high-pressure water supply pipe, the high-pressure water supply pump is arranged on the high-pressure water supply pipe, the high-pressure water inlet pipeline is wound on the high-pressure water inlet pipe reel, one end of the high-pressure water inlet pipeline is connected with a water outlet of the high-pressure water inlet pipe reel, the other end of the high-pressure water inlet pipeline extends out of the high-pressure, the other end of the high-pressure water inlet pipeline is bent downwards and penetrates through the horizontal sliding plate;

the sewage discharging device comprises a sewage discharging box, a sewage discharging pump, a sewage discharging pipeline and a sewage discharging pipe reel, wherein the sewage discharging box and the sewage discharging pump are fixedly installed at the left side part of the rear side of the carriage bottom plate, the sewage discharging pipe reel is rotatably installed on the second fixing frame, a water inlet of the sewage discharging box is connected with a central water outlet of the sewage discharging pipe reel through a water return pipe, the sewage discharging pump is installed on the water return pipe, the sewage discharging pipeline is wound on the sewage discharging pipe reel, one end of the sewage discharging pipeline is connected with the water inlet of the sewage discharging pipe reel, the other end of the sewage discharging pipeline stretches out of the sewage discharging pipe reel and vertically upwards passes through two guide wheels installed on a first vertical support plate at the rear side, the other end of the sewage discharging pipeline is horizontally bent again and forwards passes through the middle two guide wheels installed at the middle part of the rear side of.

5. The tight rock geological exploration sampling drilling system of claim 4, wherein: the geological coring special drill bit comprises a tunneling part, a crushing part and a cutting part, the tunneling part, the crushing part and the cutting part are sequentially connected from top to bottom, the top of the tunneling part is provided with a high-pressure water inlet pipe connector and a blow-off pipe connector, the bottom of the tunneling part is movably connected with the top of the crushing part, the top of the cutting part is rotatably connected with the bottom of the crushing part, a high-pressure water supply annular cavity and a blow-off passage are arranged in the tunneling part, the lower end of the high-pressure water inlet pipe connector is communicated with the high-pressure water supply annular cavity, the lower end of the blow-off pipe connector is communicated with the blow-off passage, a scouring annular cavity is arranged in the crushing part, a crushing passage butted with the blow-off passage is arranged in the scouring annular cavity, the high-pressure water supply annular cavity is communicated with the scouring annular cavity through a plurality of high-pressure hoses, the upper end port of each high-pressure water spraying channel is communicated with the scouring annular cavity, the cutting part is internally provided with a high-pressure water spraying annular cavity butted with the lower end port of each high-pressure water spraying channel, the bottom of the cutting part is rotatably provided with a plurality of cutting wheels with circumferential arrays, the bottom of the cutting part is provided with a plurality of high-pressure spray pipes butted with the high-pressure water spraying annular cavity, the nozzles of each high-pressure spray pipe are respectively arranged towards each cutting wheel, and the outer circumference of the tunneling part and the outer circumference of the crushing part are respectively provided with a plurality of supporting mechanisms in pressing contact with the well wall along the circumferential arrays;

the tunneling part comprises a tunneling barrel body, the top and the bottom of the tunneling barrel body are both open, the top of the tunneling barrel body is fixedly connected with an upper flange end cover, the bottom of the tunneling barrel body is fixedly connected with a lower flange end cover, the middle parts of the upper flange end cover and the lower flange end cover are both provided with vertically through sewage discharge holes, a sewage discharge pipeline is fixedly connected between the upper flange end cover and the lower flange end cover, the sewage discharge pipeline is internally provided with the sewage discharge channel, the upper port and the lower port of the sewage discharge pipeline are respectively correspondingly butted with the upper sewage discharge hole and the lower sewage discharge hole, the lower end of a sewage discharge pipeline connector is fixedly connected with the middle part of the upper flange end cover and butted with the upper sewage discharge hole, a high-pressure water supply ring cavity is formed between the excircle of the sewage discharge pipeline and the inner circle of the tunneling barrel body, the lower ends of four high-pressure water inlet pipe connectors are fixedly mounted on an upper flange end cover and communicated with a high-pressure water supply annular cavity, the middle part of a lower flange end cover is fixedly connected with a corrugated pipe, the upper port of the corrugated pipe is butted with a lower side sewage discharge hole, four high-pressure hoses are arranged, four high-pressure hose circumferential arrays are arranged around the corrugated pipe, the upper ends of the four high-pressure hoses are fixedly mounted on the lower flange end cover and communicated with the high-pressure water supply annular cavity, four second hydraulic cylinders arranged in the circumferential arrays are fixedly mounted on the outer edge of the lower flange end cover, piston rods of the second hydraulic cylinders are vertically arranged, the piston rods of the second hydraulic cylinders extend downwards out of a cylinder body, and the top parts of the cylinder bodies of the second;

the crushing part comprises a crushing barrel body, the top and the bottom of the crushing barrel body are both open, a friction circular tube is concentrically arranged in the crushing barrel body, the upper end of the friction circular tube is fixedly connected with the inner top of the crushing barrel body in an integrated forming way, the inner diameter of the friction circular tube is the same as the inner diameter of a sewage discharge hole, the outer diameter of the friction circular tube is smaller than the inner diameter of the crushing barrel body, the lower end of the friction circular tube is positioned at the inner lower side part of the crushing barrel body, a first thrust bearing sleeved on the outer circumference of the top of the friction circular tube is installed at the inner top of the crushing barrel body, the excircle of the first thrust bearing is contacted with the inner circle of the crushing barrel body, a plurality of first water seals are sleeved on the outer circumference of the friction circular tube, a conductive sliding ring is fixedly sleeved on the outer circumference of the lower, the lower ends of piston rods of four second hydraulic cylinders are hinged to the outer edge of the upper surface of the crushing barrel, the lower ends of four high-pressure hoses are fixedly mounted on the upper surface of the crushing barrel, the upper surface of the crushing barrel is provided with four high-pressure water flow injection channels, the lower ends of the four high-pressure hoses are respectively in butt joint with the upper ends of the four high-pressure water flow injection channels, four high-pressure water flow perforation holes are formed in the periphery of the upper side part of the inner side wall of the crushing barrel, the lower ends of the four high-pressure water flow injection channels are respectively communicated with the four high-pressure water flow perforation holes, the inner wall of a friction circular pipe is uniformly provided with friction;

the cutting part comprises a cutting barrel body, the top and the bottom of the cutting barrel body are both open, the cutting channel is formed inside the cutting barrel body, the top of the cutting barrel body is fixedly connected with a flow guide barrel body in a concentric mode, the top and the bottom of the flow guide barrel body are both open, a radial plate support is fixedly connected with an inner circle of the bottom of the flow guide barrel body, a crushing shaft is arranged in the flow guide barrel body in a concentric mode, the lower end of the crushing shaft is fixedly connected to the middle of the radial plate support, the flow guide barrel body is inserted into the crushing barrel body and sleeved outside a friction circular pipe, a scouring annular cavity is formed between an outer circle of the flow guide barrel body and the inner circle of the crushing barrel body, the crushing shaft extends into the friction circular pipe, a helical cutting blade is integrally formed on the crushing shaft in the axial direction, a helical guide blade with the opposite rotation direction to the helical cutting blade is integrally formed on, the outer circle of the upper end of the flow guide cylinder body is fixedly connected with an annular plate, a second thrust bearing is sleeved on the outer circumference of the top of the flow guide cylinder body, the outer circle of the second thrust bearing is in contact with the inner circle of the crushing cylinder body, the upper surface of the second thrust bearing is in compressed contact with the lower surface of the annular plate, the inner edge of the upper surface of the annular plate is in top pressure contact with the outer edge of the lower surface of the first thrust bearing, each first water seal, each conductive sliding ring and each deep groove ball bearing are embedded between the flow guide cylinder body and the friction circular tube, the spraying directions of the four high-pressure water flow perforating holes are respectively arranged towards each rotating blade correspondingly, a rotating ring groove with an opening at the top is formed in the top of the cutting cylinder body along the circumferential direction;

the bottom of the cutting cylinder body is fixedly provided with a core taking seat, the middle part of the core taking seat is provided with a core taking channel which is through up and down and is butted with the cutting channel, the bottom of the core taking seat is fixedly connected with a slag discharging seat, the middle part of the slag discharging seat is provided with a slag discharging channel which is through up and down and is butted with the slag discharging channel, each high-pressure water spraying channel vertically penetrates through the eccentric parts of the cutting cylinder body, the core taking seat and the slag discharging seat, the bottoms of the cutting cylinder body and the core taking seat are respectively provided with an arc-shaped placing groove, the arc-shaped placing groove at the upper side is correspondingly connected with the lower port of the cutting channel, the arc-shaped placing groove at the lower side is correspondingly connected with the lower port of the core taking channel, one side of the inner wall of the lower port of the cutting channel and one side of the inner wall of the lower port of the core taking channel are respectively provided with a waterproof motor which is vertically arranged, the baffle on the lower side slides in the arc-shaped accommodating groove on the lower side correspondingly and is used for plugging the lower port of the core taking channel, two waterproof motors are connected with the conductive slip ring through waterproof cables, the middle part of the slag discharging seat is provided with an annular groove, the bottom of the slag discharging seat is fixedly provided with a cutting flange seat, the middle part of the cutting flange seat is provided with a slag discharging hole which is through up and down and is butted with the slag discharging channel, a high-pressure water spraying ring cavity is formed between the top of the cutting flange seat and the annular groove, the bottom of the cutting flange seat is fixedly connected with a conical slag collecting hopper with a small upper part and a large lower part, the upper port of the conical slag collecting hopper is butted with the slag discharging hole, the outer edge of the bottom of the cutting flange seat is provided with a plurality of pillars along a circumferential array, each cutting wheel correspondingly rotates on each pillar respectively, the central shaft of each cutting wheel is arranged along the radial direction, the inner end of the central shaft of each cutting wheel is fixedly provided with a driving impeller, each high-pressure spray pipe is fixedly arranged on a cutting flange seat, and the nozzle of each high-pressure spray pipe is arranged downwards towards the upper side part of each driving impeller;

four mounting grooves which are arranged in a circumferential array are respectively arranged on the outer circumference of the tunneling barrel body and the outer circumference of the crushing barrel body, the lower side and the front side of each mounting groove on the front side are open, each mounting groove is internally provided with the supporting mechanism, the supporting mechanism on the front side comprises a hinged support, a vertical supporting pressing plate and a third hydraulic oil cylinder, the hinged support is fixedly arranged at the bottom of the mounting groove on the front side through a plurality of screws, the vertical supporting pressing plate is vertically arranged along the left-right direction and is positioned in front of the mounting groove on the front side, the bottom of a cylinder body of the third hydraulic oil cylinder is hinged at the upper side part of the hinged support, a piston rod of the third hydraulic oil cylinder extends forwards and downwards, the front end of the piston rod of the third hydraulic oil cylinder is hinged at the middle part of the rear side surface of the vertical supporting pressing plate, a fourth connecting rod is hinged at the lower side of the middle part of the, the front side surface of the vertical supporting pressure plate is a rough surface.

6. The method of operating a tight rock geological exploration sampling drilling system as claimed in claim 5 wherein: the method specifically comprises the following steps:

(1) driving the whole system to a designated operation position by a truck, adjusting the well drilling guide pipe assembly to be in a state of being fixedly connected with the carriage bottom plate, and preparing for next drilling operation;

(2) placing a common drill bit in a central hole of the electric slip, screwing up each drill rod one by one through the top drive and the electric slip, performing drilling operation on the stratum until the stratum is drilled to the depth of the compact stratum, unscrewing each drill rod one by one through the top drive and the electric slip, hoisting each drill rod back to the first fixed frame, and taking down the common drill bit;

(3) buckling up and buckling each stratum well casing pipe one by one through a top drive and an electric slip, butting and lowering each stratum well casing pipe into a well, fixing the well wall of the well and preventing collapse;

(4) the electric slips are disassembled, the drill bit special for geological coring is placed in the center of an upper port of a well, the upper ends of four high-pressure water inlet pipe connectors are fixedly connected with the lower end of a high-pressure water inlet pipeline through a five-way pipe, the upper end of a blow-off pipe connector is fixedly connected with the lower end of a blow-off pipeline, the drill bit special for geological coring is placed into the bottom of the well through the high-pressure water inlet pipeline and the blow-off pipeline, compact rock is crushed, sampling operation is carried out, after sampling is completed, the high-pressure water inlet pipeline and the blow-off pipeline are wound, the drill bit special for geological coring is lifted out of the;

(5) and each stratum well casing is sequentially broken off through the top drive and the electric slips, and each stratum well casing is hung back to the second fixed frame.

7. The working method of the tight rock geological exploration sampling drilling system according to claim 6, characterized by comprising the following steps: the step (1) is specifically as follows: the truck drives the whole system to a designated operation position, wherein, initially, two sliding supports are close to the round hole, the upper end of the second guide pipe is at the highest position, two limit guide rods are positioned at the top of the corresponding guide long hole, piston rods of two first hydraulic oil cylinders are in an extending state, each second connecting rod and each third connecting rod are close to the second guide pipe, namely, the drilling guide pipe fixing frame is in a contraction state like an umbrella framework, the two first hydraulic oil cylinders are started, the piston rods of the two first hydraulic oil cylinders synchronously contract upwards and drive the second circular ring-shaped support to move upwards along the outer circumference of the second guide pipe, each second connecting rod and each third connecting rod are far away from the second guide pipe, the drilling guide pipe fixing frame is opened like the umbrella framework, and then two horizontal servo speed reducing motors are started to respectively drive the corresponding horizontal screw rods to rotate, the sliding support of the horizontal lead screw drive front side of front side moves forward, the sliding support of the horizontal lead screw drive rear side of rear side moves backward, and then the lower extreme that makes two first connecting rods keeps away from the round hole along with corresponding sliding support, and then the upper end of two first connecting rods just can drive the second stand pipe and move down, two spacing guide arms are located the bottom of corresponding direction slot hole, this moment, the lower extreme and the carriage bottom plate contact of each second connecting rod, the lower surface sticiss at carriage bottom plate upper surface of each rag bolt fixing base, respectively with each rag bolt fixing base fixed mounting on carriage bottom plate through a plurality of rag bolts, thus, accomplish the preparation work for drilling operation on next step.

8. The working method of the tight rock geological exploration sampling drilling system according to claim 7, characterized by comprising the following steps: the step (2) is specifically as follows: a common drill bit is tightly clamped and fixed in a center hole of an electric slip, four vertical servo reducing motors synchronously drive corresponding driving gears to rotate, two driving gears on the left side are in transmission connection with racks on the left side, two driving gears on the right side are in transmission connection with racks on the left side, thus a horizontal sliding plate moves back and forth on two first horizontal guide rails, the horizontal sliding plate stops moving forwards above each drill rod, a cable winding motor drives a cable reel to rotate for paying off, a top drive is driven to move right above a first drill rod and is clamped on the top of the first drill rod, the cable winding motor drives the cable reel to rotate reversely for taking up the cable, the top drive lifts the first drill rod, the four vertical servo reducing motors synchronously rotate reversely again, the horizontal sliding plate is driven to move reversely to right above a second guide pipe, and then the cable winding motor drives the cable reel to rotate for paying off the cable, the top drive drives the first drill rod to fall into the second guide pipe until the lower end of the first drill rod falls to the lower end of the first guide pipe, the lower end of the first drill rod is buckled with the upper end of the common drill bit under the action of the top drive and the electric slip, the slip drive motor is started, the slip drive motor drives the electric slip to tightly hold the first drill rod to rotate and drive the first drill rod to gradually move downwards, so that the common drill bit performs drilling operation on the stratum, during the drilling operation, the top drive is used for gradually buckling the drill rods one by one until the common drill bit enters the depth of the compact stratum, the whole connected drill rods are hoisted by the top drive, the electric slip blocks the second drill rod on the upper part, the first drill rod on the upper part is disconnected with the second drill rod on the upper part through the top drive, and the first drill rod on the upper part is hoisted back to the first fixed frame, and thus, each drill rod is buckled one by one, each drill rod is hung back to the first fixing frame, and the common drill bit is taken down.

9. The working method of the tight rock geological exploration sampling drilling system according to claim 8, characterized by: the step (3) is specifically as follows: four vertical servo reducing motors drive a horizontal sliding plate to move backwards on two first horizontal guide rails to be right above each stratum well casing, a cable winding motor drives a cable reel to rotate to pay off the cable, so that a top drive is driven to be right above the first stratum well casing, the top drive is clamped and tightly holds the top of the first stratum well casing, the cable winding motor drives the cable reel to rotate in the reverse direction to take up the cable, the top drive lifts the first stratum well casing, the four vertical servo reducing motors rotate in the reverse direction again synchronously, so that the horizontal sliding plate is driven to move in the reverse direction to be right above a second guide pipe, then the cable winding motor drives the cable reel to rotate to pay off the cable, the top drive drives the first stratum well casing to fall into the second guide pipe until the lower end of the first stratum well casing falls through the lower end of the first guide pipe and is inserted into a central hole of an electric slip, the electric slip clamps a first stratum well casing, then the cable winding motor drives the cable reel to rotate reversely to take up the cable, the top drive is lifted out of a second guide pipe, the four vertical servo reducing motors drive the horizontal sliding plate to move backwards to the position right above each stratum well casing again, the cable winding motor drives the cable reel to rotate to pay off the cable, the top drive is driven to fall to the position right above a second stratum well casing, the top drive clamps the top of the second stratum well casing tightly, the cable winding motor drives the cable reel to rotate reversely to take up the cable, the top drive lifts the second stratum well casing, the four vertical servo reducing motors rotate reversely again synchronously, so that the horizontal sliding plate is driven to move reversely to the position right above the second guide pipe, then the cable winding motor drives the cable reel to rotate to pay off the cable, and the top drive drives the second stratum well casing to fall into the second guide pipe, and buckling the lower end of the second stratum well casing pipe and the upper end of the first stratum well casing pipe one by one through the top drive and the electric slip until the lower end of the second stratum well casing pipe falls to the lower end of the first guide pipe and is butted with the upper end of the first stratum well casing pipe, and thus, butting and lowering each stratum well casing pipe into a drilling well through the top drive and the electric slip to fix the well wall of the drilling well and prevent collapse.

10. The method of operating a tight rock geological exploration sampling drilling system as claimed in claim 9, wherein: the step (4) is specifically as follows: the electric slips are disassembled, the drill bit special for geological coring is placed in the center of an upper port of a well, the upper ends of four high-pressure water inlet pipe connectors are fixedly connected with the lower end of a high-pressure water inlet pipeline through a five-way pipe, the upper end of a blow-off pipe connector is fixedly connected with the lower end of a blow-off pipeline, the high-pressure water inlet pipeline is unreeled through a high-pressure water inlet pipe reel, the blow-off pipeline is unreeled through the blow-off pipe reel, the drill bit special for geological coring is further placed at the bottom of the well through the high-pressure water inlet pipeline and the blow-off pipeline, four third hydraulic cylinders on the tunneling barrel are started, piston rods of the four third hydraulic cylinders on the tunneling barrel extend out to fixedly support corresponding vertical supporting pressing plates on the inner wall of the well, so that the tunneling barrel is fixed in the well, then four third hydraulic oil cylinders on the crushing cylinder body are started, piston rods of the four third hydraulic oil cylinders on the crushing cylinder body extend out to fixedly support corresponding vertical supporting pressing plates on the inner wall of the well drilling, so that the crushing cylinder body is fixed in the well drilling, piston rods of the four third hydraulic oil cylinders on the tunneling cylinder body are retracted to be separated from the inner wall of the well drilling, the tunneling part moves downwards for a certain distance through contraction of the piston rods of the four second hydraulic oil cylinders, the piston rods of the four third hydraulic oil cylinders on the tunneling cylinder body extend out to fixedly support corresponding vertical supporting pressing plates on the inner wall of the well drilling, the tunneling cylinder body is fixed in the well drilling, the piston rods of the four third hydraulic oil cylinders on the crushing cylinder body are retracted to be separated from the inner wall of the well drilling, the crushing part and the cutting part are pushed downwards for a certain distance through extension of the piston rods of the four second hydraulic oil cylinders, and the piston rods The crushing cylinder is fixed in the well drilling, and thus, the operations are repeated to realize the creeping advance of the drill bit special for geological coring;

in the creeping forward process of the drill bit special for geological coring, a high-pressure water supply pump and a sewage pump are started, the high-pressure water supply pump injects water in a water supply tank into a high-pressure water supply annular cavity in the tunneling part through a high-pressure water supply pipe, a high-pressure water inlet pipeline and four high-pressure water inlet pipe connectors, the high-pressure water enters four high-pressure water jet channels through four high-pressure hoses, the high-pressure water enters a scouring annular cavity through the four high-pressure water jet holes and impacts each rotating blade on the outer circumference of the upper side part of a guide cylinder body to drive the guide cylinder body to rotate at a high speed, the guide cylinder body drives a cutting part to rotate integrally, the high-pressure water is accelerated to downwards impact each high-pressure water jet channel through the spiral guide blades in the scouring annular cavity, the high-pressure water enters the high-pressure water jet annular cavity through each high-pressure, part of high-pressure water impacts on the compact rock to be mined to carry out crushing operation, and simultaneously, each cutting wheel rotates to cut and crush the compact rock, because the bottom space of the well is small, the high-pressure water can be reversely gathered to the conical slag trap and flows back upwards, so that the compact rock slag is sent into the conical slag trap, and upward enters the crushing channel through a slag discharge hole, a slag discharge channel, a coring channel and a cutting channel, and is further cut and crushed under the action of a spiral cutting blade rotating at high speed, simultaneously, the friction crushing is carried out with the friction elongated slot on the inner wall of the friction circular tube, then the friction crushed friction circular tube enters a sewage discharge pipeline through a corrugated tube, then the sewage discharge pipeline is discharged out of the tunneling barrel body and is discharged to the ground through a sewage discharge pipe connector and a sewage discharge pipeline, and finally the sewage discharge pipeline enters a sewage discharge water tank through a sewage discharge water pump and a water return pipe, wherein, initially, the two baffles are both positioned at the eccentric position, and the coring channel and the cutting channel are both opened;

when arriving a certain assigned position, start the waterproof motor of upside, rotate the baffle of upside to center department shutoff cutting passageway's lower port, then during the core passageway is got to broken fine and close rock sample entering, then start the waterproof motor of downside, rotate the baffle of downside to center department shutoff and get the lower port of core passageway, so, accomplish the sample, upwards pack up high pressure water inlet pipe line and sewage pipes in step, propose this multi-functional fine and close rock geological exploration drill bit from the well drilling, take out the sample.

Technical Field

The invention relates to the field of tight rock geological exploration, in particular to a tight rock geological exploration sampling drilling system and a working method thereof.

Background

The dense rock oil gas is one of unconventional oil gas resources, is widely distributed in the world, is also widely distributed in China, and has wide development potential, but the exploration degree of China is lower at present, and one of the main reasons is that factors such as complex geology, remote development wells and the like increase the difficulty of exploration and development. Geological exploration sampling is an effective means for acquiring geological conditions of underground compact rock, at present, geological exploration sampling is mainly characterized in that a drill rod is connected with a common drill bit, power is applied through a wellhead drilling machine and transmitted to the drill bit through the drill rod, so that the drill bit cuts and impacts strata, when a well is an ultra-deep well and the geology is complex, power is completely applied by the wellhead, the drill rod can be excessively twisted and deformed, and even the drill rod is directly twisted off to cause serious accidents; in addition, as the development well is probably located in a remote geological place, even the situation of a steep road surface is frequent, which causes difficulty to the transportation of the drilling machine, the drilling machine which is convenient to transport and adapts to the steep road surface environment is provided, the multifunctional drill bit which can automatically supply cutting and impact power is designed, and the formation of a new compact rock geological exploration sampling system has very important significance for improving the convenience and safety of drilling exploration sampling and saving the labor cost.

Disclosure of Invention

The invention aims to provide a tight rock geological exploration sampling drilling system and a working method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a tight rock geological exploration sampling well drilling system comprises a truck, a common drill bit, a geological core-taking special drill bit, an electric slip, a slip driving motor, a gantry crane device, a well drilling guide pipe assembly, a top driver, a water supply device and a sewage discharge device, wherein the truck comprises a truck head and a truck body, the truck body is provided with a carriage bottom plate with the truck head facing forward, the common drill bit and the geological core-taking special drill bit are both arranged on the carriage bottom plate, the middle part of the carriage bottom plate is provided with an up-and-down through round hole, the electric slip is fixedly arranged in the middle part of the lower surface of the carriage bottom plate and is positioned under the round hole, the slip driving motor is fixedly arranged in the middle part of the left side of the lower surface of the carriage bottom plate and is in driving connection with the electric slip, the gantry crane device is fixedly arranged, the lower end of a cable rope of the gantry crane device is fixedly connected with the upper end of the top drive, the water supply device and the sewage discharge device are both arranged on the carriage bottom plate, a first fixed frame is fixedly arranged on the front side portion of the carriage bottom plate, a plurality of drill rods are placed on the first fixed frame, a second fixed frame is fixedly arranged on the rear side portion of the carriage bottom plate, and a plurality of stratum well casings are placed on the second fixed frame.

The gantry crane device comprises a horizontal frame, a horizontal sliding plate, a cable reel and a cable winding motor, wherein the horizontal frame consists of two first horizontal guide rails and two first vertical support plates, the length directions of the two first horizontal guide rails are horizontally arranged along the front-back direction, the two first horizontal guide rails are arranged side by side left and right, the two first vertical support plates are vertically arranged along the left-right direction, the two first vertical support plates are arranged side by side front and back, the first vertical support plate at the front side is fixedly connected at the front ends of the two first horizontal guide rails, the first vertical support plate at the rear side is fixedly connected at the rear ends of the two first horizontal guide rails, four vertical stand columns are fixedly connected on a carriage bottom plate, the vertical projections of the four vertical stand columns are positioned at the four corners of a rectangle, the bottom of the first horizontal guide rail at the left side is fixedly connected at the tops of the two vertical stand columns at the, the bottom of a horizontal sliding plate is connected to two first horizontal guide rails in a sliding mode, the middle of the horizontal sliding plate is provided with a rope penetrating long hole which is through up and down, the middle of the horizontal sliding plate is fixedly provided with a reel bracket which is positioned right above the rope penetrating long hole, a cable reel is rotatably arranged on the reel bracket, a cable winding motor is fixedly arranged in the middle of the right side of the horizontal sliding plate, a central shaft of the cable reel and a power shaft of the cable winding motor are horizontally arranged along the left and right directions, the left end of the power shaft of the cable winding motor is in transmission connection with the right end of the central shaft of the cable reel, a coiled cable is wound on the cable reel, the extending end of the cable downwards passes through the rope penetrating long hole and is fixedly connected with the upper end of a top drive, two racks are fixedly connected between two first vertical support plates, the two racks, the periphery of the horizontal sliding plate is respectively and fixedly provided with a vertical servo speed reducing motor, the lower end of a power shaft of the vertical servo speed reducing motor downwards penetrates through the horizontal sliding plate and is fixedly provided with driving gears, the two driving gears on the left side are in transmission connection with the rack on the left side, and the two driving gears on the right side are in transmission connection with the rack on the left side;

the first vertical extension board leading flank of front side, the first vertical extension board trailing flank of rear side, the equal fixed mounting in upper surface front side middle part and the rear side middle part of horizontal sliding plate has pipeline leading wheel group seat, the pipeline leading wheel group seat of installation on the first vertical extension board leading flank of front side includes door style of calligraphy extension board and two leading wheel constitutions, door style of calligraphy extension board upside, downside and front side are all uncovered, door style of calligraphy extension board left and right sides board front side fixed connection is on the first vertical extension board trailing flank of rear side, around two leading wheels side by side and the center pin is along left and right sides direction level setting, both ends rotate respectively and install on the left and right sides board of door style of calligraphy extension board about the center pin of two leading wheels.

The well drilling guide pipe assembly comprises a first guide pipe and a second guide pipe, the center lines of the first guide pipe, the second guide pipe and a round hole are overlapped, the lower end of the first guide pipe is arranged at the center of the round hole and is butted with a center hole of an electric slip up and down, the outer circumference of the lower end of the first guide pipe is fixedly connected with four connecting rods arranged in a circumferential array, the connecting rods are arranged along the radial direction of the first guide pipe, the outer ends of the four connecting rods are fixedly connected on the inner circle of the round hole, the outer diameter of the second guide pipe is the same as the inner diameter of the first guide pipe, the second guide pipe is inserted into the first guide pipe, the upper side part of the second guide pipe extends out of the upper end of the first guide pipe, the left side wall and the right side wall of the first guide pipe are vertically provided with guide long holes, and the lower side part of the left side wall and the lower side part of the right side wall of the, the left limiting guide rod correspondingly penetrates through and is inserted in the left guiding long hole and is in sliding connection with the left guiding long hole, the right limiting guide rod correspondingly penetrates through and is inserted in the right guiding long hole and is in sliding connection with the right guiding long hole, and two groups of connecting rod driving devices for driving the second guiding pipe to move up and down are fixedly installed on the bottom plate of the carriage;

the two groups of connecting rod driving devices have the same structure and are symmetrically arranged in the front and back direction of the first guide pipe, the connecting rod driving device at the rear side comprises a horizontal servo speed reducing motor, a horizontal lead screw, a sliding support and a first connecting rod, the horizontal servo speed reducing motor and the horizontal lead screw are horizontally arranged along the front and back direction, two second horizontal guide rails positioned between a round hole and the rear side edge of the carriage bottom plate are fixedly arranged on the carriage bottom plate along the front and back direction, the two second horizontal guide rails are arranged side by side in the left and right direction, the horizontal lead screw is positioned in the middle of the two second horizontal guide rails, second vertical support plates are fixedly connected with the front side part and the rear side part of the two second horizontal guide rails, the second vertical support plates are vertically arranged along the left and right direction, the horizontal servo speed reducing motor is fixedly arranged on the rear side of the second vertical support plate at the rear side, and the front end, the front end of the horizontal screw rod is rotatably arranged on a second vertical support plate on the front side, the middle part of the sliding support is in threaded connection with the horizontal screw rod, the left side and the right side of the bottom of the sliding support are respectively in sliding connection with two second horizontal guide rails, the first connecting rod is obliquely arranged in a high-back manner, the lower end of the first connecting rod is hinged on the sliding support, the upper end of the first connecting rod is hinged on the upper side part of the back side wall of the second guide pipe, and an upper end hinged shaft and a lower end hinged shaft of the first connecting rod are horizontally arranged along the left-right direction;

the excircle of the upper end of the second guide pipe is fixedly connected with a first annular support, the outer circumference of the upper side part of the second guide pipe is connected with a second annular support which is positioned under the first annular support and sleeved on the second guide pipe in a sliding way, two first hydraulic cylinders are hinged between the first annular support and the second annular support, the two first hydraulic cylinders are symmetrically arranged at the front side and the rear side of the second guide pipe in a front-back way, a plurality of second connecting rods arranged in a circumferential array are arranged around the second guide pipe, the upper end of each second connecting rod is hinged on the first annular support, the lower end of each second connecting rod is fixedly provided with a foundation bolt fixing seat, the upper side part of each second connecting rod is hinged with a third connecting rod, the lower end of each third connecting rod is hinged on the second annular support, the upper end hinged shaft of the second connecting rod, the upper end hinged shaft and the lower end of the third connecting rod are horizontally arranged and are vertical to the length direction of the second, the first annular support, each second connecting rod, each third connecting rod and the second annular support form a drilling guide pipe fixing frame similar to an umbrella framework structure.

The water supply device comprises a water supply tank, a high-pressure water supply pump, a high-pressure water inlet pipeline and a high-pressure water inlet pipe reel, wherein the water supply tank and the high-pressure water supply pump are fixedly arranged on the left side part of the front side of the carriage bottom plate, the high-pressure water inlet pipe reel is rotatably arranged on a first fixed frame, a water outlet of the water supply tank is connected with a central water inlet of the high-pressure water inlet pipe reel through a high-pressure water supply pipe, the high-pressure water supply pump is arranged on the high-pressure water supply pipe, the high-pressure water inlet pipeline is wound on the high-pressure water inlet pipe reel, one end of the high-pressure water inlet pipeline is connected with a water outlet of the high-pressure water inlet pipe reel, the other end of the high-pressure water inlet pipeline extends out of the high-pressure, the other end of the high-pressure water inlet pipeline is bent downwards and penetrates through the horizontal sliding plate.

The sewage discharging device comprises a sewage discharging box, a sewage discharging pump, a sewage discharging pipeline and a sewage discharging pipe reel, wherein the sewage discharging box and the sewage discharging pump are fixedly installed at the left side part of the rear side of the carriage bottom plate, the sewage discharging pipe reel is rotatably installed on the second fixing frame, a water inlet of the sewage discharging box is connected with a central water outlet of the sewage discharging pipe reel through a water return pipe, the sewage discharging pump is installed on the water return pipe, the sewage discharging pipeline is wound on the sewage discharging pipe reel, one end of the sewage discharging pipeline is connected with the water inlet of the sewage discharging pipe reel, the other end of the sewage discharging pipeline stretches out of the sewage discharging pipe reel and vertically upwards passes through two guide wheels installed on a first vertical support plate at the rear side, the other end of the sewage discharging pipeline is horizontally bent again and forwards passes through the middle two guide wheels installed at the middle part of the rear side of.

The geological coring special drill bit comprises a tunneling part, a crushing part and a cutting part, the tunneling part, the crushing part and the cutting part are sequentially connected from top to bottom, the top of the tunneling part is provided with a high-pressure water inlet pipe connector and a blow-off pipe connector, the bottom of the tunneling part is movably connected with the top of the crushing part, the top of the cutting part is rotatably connected with the bottom of the crushing part, a high-pressure water supply annular cavity and a blow-off passage are arranged in the tunneling part, the lower end of the high-pressure water inlet pipe connector is communicated with the high-pressure water supply annular cavity, the lower end of the blow-off pipe connector is communicated with the blow-off passage, a scouring annular cavity is arranged in the crushing part, a crushing passage butted with the blow-off passage is arranged in the scouring annular cavity, the high-pressure water supply annular cavity is communicated with the scouring annular cavity through a plurality of high-pressure hoses, the upper end port of each high-pressure water spraying channel is communicated with the scouring annular cavity, the cutting part is internally provided with a high-pressure water spraying annular cavity butted with the lower end port of each high-pressure water spraying channel, the bottom of the cutting part is rotatably provided with a plurality of cutting wheels with circumferential arrays, the bottom of the cutting part is provided with a plurality of high-pressure spray pipes butted with the high-pressure water spraying annular cavity, the nozzles of each high-pressure spray pipe are respectively arranged towards each cutting wheel, and the outer circumference of the tunneling part and the outer circumference of the crushing part are respectively provided with a plurality of supporting mechanisms in pressing contact with the well wall along the circumferential arrays;

the tunneling part comprises a tunneling barrel body, the top and the bottom of the tunneling barrel body are both open, the top of the tunneling barrel body is fixedly connected with an upper flange end cover, the bottom of the tunneling barrel body is fixedly connected with a lower flange end cover, the middle parts of the upper flange end cover and the lower flange end cover are both provided with vertically through sewage discharge holes, a sewage discharge pipeline is fixedly connected between the upper flange end cover and the lower flange end cover, the sewage discharge pipeline is internally provided with the sewage discharge channel, the upper port and the lower port of the sewage discharge pipeline are respectively correspondingly butted with the upper sewage discharge hole and the lower sewage discharge hole, the lower end of a sewage discharge pipeline connector is fixedly connected with the middle part of the upper flange end cover and butted with the upper sewage discharge hole, a high-pressure water supply ring cavity is formed between the excircle of the sewage discharge pipeline and the inner circle of the tunneling barrel body, the lower ends of four high-pressure water inlet pipe connectors are fixedly mounted on an upper flange end cover and communicated with a high-pressure water supply annular cavity, the middle part of a lower flange end cover is fixedly connected with a corrugated pipe, the upper port of the corrugated pipe is butted with a lower side sewage discharge hole, four high-pressure hoses are arranged, four high-pressure hose circumferential arrays are arranged around the corrugated pipe, the upper ends of the four high-pressure hoses are fixedly mounted on the lower flange end cover and communicated with the high-pressure water supply annular cavity, four second hydraulic cylinders arranged in the circumferential arrays are fixedly mounted on the outer edge of the lower flange end cover, piston rods of the second hydraulic cylinders are vertically arranged, the piston rods of the second hydraulic cylinders extend downwards out of a cylinder body, and the top parts of the cylinder bodies of the second;

the crushing part comprises a crushing barrel body, the top and the bottom of the crushing barrel body are both open, a friction circular tube is concentrically arranged in the crushing barrel body, the upper end of the friction circular tube is fixedly connected with the inner top of the crushing barrel body in an integrated forming way, the inner diameter of the friction circular tube is the same as the inner diameter of a sewage discharge hole, the outer diameter of the friction circular tube is smaller than the inner diameter of the crushing barrel body, the lower end of the friction circular tube is positioned at the inner lower side part of the crushing barrel body, a first thrust bearing sleeved on the outer circumference of the top of the friction circular tube is installed at the inner top of the crushing barrel body, the excircle of the first thrust bearing is contacted with the inner circle of the crushing barrel body, a plurality of first water seals are sleeved on the outer circumference of the friction circular tube, a conductive sliding ring is fixedly sleeved on the outer circumference of the lower, the lower ends of piston rods of four second hydraulic cylinders are hinged to the outer edge of the upper surface of the crushing barrel, the lower ends of four high-pressure hoses are fixedly mounted on the upper surface of the crushing barrel, the upper surface of the crushing barrel is provided with four high-pressure water flow injection channels, the lower ends of the four high-pressure hoses are respectively in butt joint with the upper ends of the four high-pressure water flow injection channels, four high-pressure water flow perforation holes are formed in the periphery of the upper side part of the inner side wall of the crushing barrel, the lower ends of the four high-pressure water flow injection channels are respectively communicated with the four high-pressure water flow perforation holes, the inner wall of a friction circular pipe is uniformly provided with friction;

the cutting part comprises a cutting barrel body, the top and the bottom of the cutting barrel body are both open, the cutting channel is formed inside the cutting barrel body, the top of the cutting barrel body is fixedly connected with a flow guide barrel body in a concentric mode, the top and the bottom of the flow guide barrel body are both open, a radial plate support is fixedly connected with an inner circle of the bottom of the flow guide barrel body, a crushing shaft is arranged in the flow guide barrel body in a concentric mode, the lower end of the crushing shaft is fixedly connected to the middle of the radial plate support, the flow guide barrel body is inserted into the crushing barrel body and sleeved outside a friction circular pipe, a scouring annular cavity is formed between an outer circle of the flow guide barrel body and the inner circle of the crushing barrel body, the crushing shaft extends into the friction circular pipe, a helical cutting blade is integrally formed on the crushing shaft in the axial direction, a helical guide blade with the opposite rotation direction to the helical cutting blade is integrally formed on, the outer circle of the upper end of the flow guide cylinder body is fixedly connected with an annular plate, a second thrust bearing is sleeved on the outer circumference of the top of the flow guide cylinder body, the outer circle of the second thrust bearing is in contact with the inner circle of the crushing cylinder body, the upper surface of the second thrust bearing is in compressed contact with the lower surface of the annular plate, the inner edge of the upper surface of the annular plate is in top pressure contact with the outer edge of the lower surface of the first thrust bearing, each first water seal, each conductive sliding ring and each deep groove ball bearing are embedded between the flow guide cylinder body and the friction circular tube, the spraying directions of the four high-pressure water flow perforating holes are respectively arranged towards each rotating blade correspondingly, a rotating ring groove with an opening at the top is formed in the top of the cutting cylinder body along the circumferential direction;

the bottom of the cutting cylinder body is fixedly provided with a core taking seat, the middle part of the core taking seat is provided with a core taking channel which is through up and down and is butted with the cutting channel, the bottom of the core taking seat is fixedly connected with a slag discharging seat, the middle part of the slag discharging seat is provided with a slag discharging channel which is through up and down and is butted with the slag discharging channel, each high-pressure water spraying channel vertically penetrates through the eccentric parts of the cutting cylinder body, the core taking seat and the slag discharging seat, the bottoms of the cutting cylinder body and the core taking seat are respectively provided with an arc-shaped placing groove, the arc-shaped placing groove at the upper side is correspondingly connected with the lower port of the cutting channel, the arc-shaped placing groove at the lower side is correspondingly connected with the lower port of the core taking channel, one side of the inner wall of the lower port of the cutting channel and one side of the inner wall of the lower port of the core taking channel are respectively provided with a waterproof motor which is vertically arranged, the baffle on the lower side slides in the arc-shaped accommodating groove on the lower side correspondingly and is used for plugging the lower port of the core taking channel, two waterproof motors are connected with the conductive slip ring through waterproof cables, the middle part of the slag discharging seat is provided with an annular groove, the bottom of the slag discharging seat is fixedly provided with a cutting flange seat, the middle part of the cutting flange seat is provided with a slag discharging hole which is through up and down and is butted with the slag discharging channel, a high-pressure water spraying ring cavity is formed between the top of the cutting flange seat and the annular groove, the bottom of the cutting flange seat is fixedly connected with a conical slag collecting hopper with a small upper part and a large lower part, the upper port of the conical slag collecting hopper is butted with the slag discharging hole, the outer edge of the bottom of the cutting flange seat is provided with a plurality of pillars along a circumferential array, each cutting wheel correspondingly rotates on each pillar respectively, the central shaft of each cutting wheel is arranged along the radial direction, the inner end of the central shaft of each cutting wheel is fixedly provided with a driving impeller, each high-pressure spray pipe is fixedly arranged on a cutting flange seat, and the nozzle of each high-pressure spray pipe is arranged downwards towards the upper side part of each driving impeller;

four mounting grooves which are arranged in a circumferential array are respectively arranged on the outer circumference of the tunneling barrel body and the outer circumference of the crushing barrel body, the lower side and the front side of each mounting groove on the front side are open, each mounting groove is internally provided with the supporting mechanism, the supporting mechanism on the front side comprises a hinged support, a vertical supporting pressing plate and a third hydraulic oil cylinder, the hinged support is fixedly arranged at the bottom of the mounting groove on the front side through a plurality of screws, the vertical supporting pressing plate is vertically arranged along the left-right direction and is positioned in front of the mounting groove on the front side, the bottom of a cylinder body of the third hydraulic oil cylinder is hinged at the upper side part of the hinged support, a piston rod of the third hydraulic oil cylinder extends forwards and downwards, the front end of the piston rod of the third hydraulic oil cylinder is hinged at the middle part of the rear side surface of the vertical supporting pressing plate, a fourth connecting rod is hinged at the lower side of the middle part of the, the front side surface of the vertical supporting pressure plate is a rough surface.

A working method of a tight rock geological exploration sampling drilling system specifically comprises the following steps:

(1) driving the whole system to a designated operation position by a truck, adjusting the well drilling guide pipe assembly to be in a state of being fixedly connected with the carriage bottom plate, and preparing for next drilling operation;

(2) placing a common drill bit in a central hole of the electric slip, screwing up each drill rod one by one through the top drive and the electric slip, performing drilling operation on the stratum until the stratum is drilled to the depth of the compact stratum, unscrewing each drill rod one by one through the top drive and the electric slip, hoisting each drill rod back to the first fixed frame, and taking down the common drill bit;

(3) buckling up and buckling each stratum well casing pipe one by one through a top drive and an electric slip, butting and lowering each stratum well casing pipe into a well, fixing the well wall of the well and preventing collapse;

(4) the electric slips are disassembled, the drill bit special for geological coring is placed in the center of an upper port of a well, the upper ends of four high-pressure water inlet pipe connectors are fixedly connected with the lower end of a high-pressure water inlet pipeline through a five-way pipe, the upper end of a blow-off pipe connector is fixedly connected with the lower end of a blow-off pipeline, the drill bit special for geological coring is placed into the bottom of the well through the high-pressure water inlet pipeline and the blow-off pipeline, compact rock is crushed, sampling operation is carried out, after sampling is completed, the high-pressure water inlet pipeline and the blow-off pipeline are wound, the drill bit special for geological coring is lifted out of the;

(5) and each stratum well casing is sequentially broken off through the top drive and the electric slips, and each stratum well casing is hung back to the second fixed frame.

The step (1) is specifically as follows: the truck drives the whole system to a designated operation position, wherein, initially, two sliding supports are close to the round hole, the upper end of the second guide pipe is at the highest position, two limit guide rods are positioned at the top of the corresponding guide long hole, piston rods of two first hydraulic oil cylinders are in an extending state, each second connecting rod and each third connecting rod are close to the second guide pipe, namely, the drilling guide pipe fixing frame is in a contraction state like an umbrella framework, the two first hydraulic oil cylinders are started, the piston rods of the two first hydraulic oil cylinders synchronously contract upwards and drive the second circular ring-shaped support to move upwards along the outer circumference of the second guide pipe, each second connecting rod and each third connecting rod are far away from the second guide pipe, the drilling guide pipe fixing frame is opened like the umbrella framework, and then two horizontal servo speed reducing motors are started to respectively drive the corresponding horizontal screw rods to rotate, the sliding support of the horizontal lead screw drive front side of front side moves forward, the sliding support of the horizontal lead screw drive rear side of rear side moves backward, and then the lower extreme that makes two first connecting rods keeps away from the round hole along with corresponding sliding support, and then the upper end of two first connecting rods just can drive the second stand pipe and move down, two spacing guide arms are located the bottom of corresponding direction slot hole, this moment, the lower extreme and the carriage bottom plate contact of each second connecting rod, the lower surface sticiss at carriage bottom plate upper surface of each rag bolt fixing base, respectively with each rag bolt fixing base fixed mounting on carriage bottom plate through a plurality of rag bolts, thus, accomplish the preparation work for drilling operation on next step.

The step (2) is specifically as follows: a common drill bit is tightly clamped and fixed in a center hole of an electric slip, four vertical servo reducing motors synchronously drive corresponding driving gears to rotate, two driving gears on the left side are in transmission connection with racks on the left side, two driving gears on the right side are in transmission connection with racks on the left side, thus a horizontal sliding plate moves back and forth on two first horizontal guide rails, the horizontal sliding plate stops moving forwards above each drill rod, a cable winding motor drives a cable reel to rotate for paying off, a top drive is driven to move right above a first drill rod and is clamped on the top of the first drill rod, the cable winding motor drives the cable reel to rotate reversely for taking up the cable, the top drive lifts the first drill rod, the four vertical servo reducing motors synchronously rotate reversely again, the horizontal sliding plate is driven to move reversely to right above a second guide pipe, and then the cable winding motor drives the cable reel to rotate for paying off the cable, the top drive drives the first drill rod to fall into the second guide pipe until the lower end of the first drill rod falls to the lower end of the first guide pipe, the lower end of the first drill rod is buckled with the upper end of the common drill bit under the action of the top drive and the electric slip, the slip drive motor is started, the slip drive motor drives the electric slip to tightly hold the first drill rod to rotate and drive the first drill rod to gradually move downwards, so that the common drill bit performs drilling operation on the stratum, during the drilling operation, the top drive is used for gradually buckling the drill rods one by one until the common drill bit enters the depth of the compact stratum, the whole connected drill rods are hoisted by the top drive, the electric slip blocks the second drill rod on the upper part, the first drill rod on the upper part is disconnected with the second drill rod on the upper part through the top drive, and the first drill rod on the upper part is hoisted back to the first fixed frame, and thus, each drill rod is buckled one by one, each drill rod is hung back to the first fixing frame, and the common drill bit is taken down.

The step (3) is specifically as follows: four vertical servo reducing motors drive a horizontal sliding plate to move backwards on two first horizontal guide rails to be right above each stratum well casing, a cable winding motor drives a cable reel to rotate to pay off the cable, so that a top drive is driven to be right above the first stratum well casing, the top drive is clamped and tightly holds the top of the first stratum well casing, the cable winding motor drives the cable reel to rotate in the reverse direction to take up the cable, the top drive lifts the first stratum well casing, the four vertical servo reducing motors rotate in the reverse direction again synchronously, so that the horizontal sliding plate is driven to move in the reverse direction to be right above a second guide pipe, then the cable winding motor drives the cable reel to rotate to pay off the cable, the top drive drives the first stratum well casing to fall into the second guide pipe until the lower end of the first stratum well casing falls through the lower end of the first guide pipe and is inserted into a central hole of an electric slip, the electric slip clamps a first stratum well casing, then the cable winding motor drives the cable reel to rotate reversely to take up the cable, the top drive is lifted out of a second guide pipe, the four vertical servo reducing motors drive the horizontal sliding plate to move backwards to the position right above each stratum well casing again, the cable winding motor drives the cable reel to rotate to pay off the cable, the top drive is driven to fall to the position right above a second stratum well casing, the top drive clamps the top of the second stratum well casing tightly, the cable winding motor drives the cable reel to rotate reversely to take up the cable, the top drive lifts the second stratum well casing, the four vertical servo reducing motors rotate reversely again synchronously, so that the horizontal sliding plate is driven to move reversely to the position right above the second guide pipe, then the cable winding motor drives the cable reel to rotate to pay off the cable, and the top drive drives the second stratum well casing to fall into the second guide pipe, and buckling the lower end of the second stratum well casing pipe and the upper end of the first stratum well casing pipe one by one through the top drive and the electric slip until the lower end of the second stratum well casing pipe falls to the lower end of the first guide pipe and is butted with the upper end of the first stratum well casing pipe, and thus, butting and lowering each stratum well casing pipe into a drilling well through the top drive and the electric slip to fix the well wall of the drilling well and prevent collapse.

The step (4) is specifically as follows: the electric slips are disassembled, the drill bit special for geological coring is placed in the center of an upper port of a well, the upper ends of four high-pressure water inlet pipe connectors are fixedly connected with the lower end of a high-pressure water inlet pipeline through a five-way pipe, the upper end of a blow-off pipe connector is fixedly connected with the lower end of a blow-off pipeline, the high-pressure water inlet pipeline is unreeled through a high-pressure water inlet pipe reel, the blow-off pipeline is unreeled through the blow-off pipe reel, the drill bit special for geological coring is further placed at the bottom of the well through the high-pressure water inlet pipeline and the blow-off pipeline, four third hydraulic cylinders on the tunneling barrel are started, piston rods of the four third hydraulic cylinders on the tunneling barrel extend out to fixedly support corresponding vertical supporting pressing plates on the inner wall of the well, so that the tunneling barrel is fixed in the well, then four third hydraulic oil cylinders on the crushing cylinder body are started, piston rods of the four third hydraulic oil cylinders on the crushing cylinder body extend out to fixedly support corresponding vertical supporting pressing plates on the inner wall of the well drilling, so that the crushing cylinder body is fixed in the well drilling, piston rods of the four third hydraulic oil cylinders on the tunneling cylinder body are retracted to be separated from the inner wall of the well drilling, the tunneling part moves downwards for a certain distance through contraction of the piston rods of the four second hydraulic oil cylinders, the piston rods of the four third hydraulic oil cylinders on the tunneling cylinder body extend out to fixedly support corresponding vertical supporting pressing plates on the inner wall of the well drilling, the tunneling cylinder body is fixed in the well drilling, the piston rods of the four third hydraulic oil cylinders on the crushing cylinder body are retracted to be separated from the inner wall of the well drilling, the crushing part and the cutting part are pushed downwards for a certain distance through extension of the piston rods of the four second hydraulic oil cylinders, and the piston rods The crushing cylinder is fixed in the well drilling, and thus, the operations are repeated to realize the creeping advance of the drill bit special for geological coring;

in the creeping forward process of the drill bit special for geological coring, a high-pressure water supply pump and a sewage pump are started, the high-pressure water supply pump injects water in a water supply tank into a high-pressure water supply annular cavity in the tunneling part through a high-pressure water supply pipe, a high-pressure water inlet pipeline and four high-pressure water inlet pipe connectors, the high-pressure water enters four high-pressure water jet channels through four high-pressure hoses, the high-pressure water enters a scouring annular cavity through the four high-pressure water jet holes and impacts each rotating blade on the outer circumference of the upper side part of a guide cylinder body to drive the guide cylinder body to rotate at a high speed, the guide cylinder body drives a cutting part to rotate integrally, the high-pressure water is accelerated to downwards impact each high-pressure water jet channel through the spiral guide blades in the scouring annular cavity, the high-pressure water enters the high-pressure water jet annular cavity through each high-pressure, part of high-pressure water impacts on the compact rock to be mined to carry out crushing operation, and simultaneously, each cutting wheel rotates to cut and crush the compact rock, because the bottom space of the well is small, the high-pressure water can be reversely gathered to the conical slag trap and flows back upwards, so that the compact rock slag is sent into the conical slag trap, and upward enters the crushing channel through a slag discharge hole, a slag discharge channel, a coring channel and a cutting channel, and is further cut and crushed under the action of a spiral cutting blade rotating at high speed, simultaneously, the friction crushing is carried out with the friction elongated slot on the inner wall of the friction circular tube, then the friction crushed friction circular tube enters a sewage discharge pipeline through a corrugated tube, then the sewage discharge pipeline is discharged out of the tunneling barrel body and is discharged to the ground through a sewage discharge pipe connector and a sewage discharge pipeline, and finally the sewage discharge pipeline enters a sewage discharge water tank through a sewage discharge water pump and a water return pipe, wherein, initially, the two baffles are both positioned at the eccentric position, and the coring channel and the cutting channel are both opened;

when arriving a certain assigned position, start the waterproof motor of upside, rotate the baffle of upside to center department shutoff cutting passageway's lower port, then during the core passageway is got to broken fine and close rock sample entering, then start the waterproof motor of downside, rotate the baffle of downside to center department shutoff and get the lower port of core passageway, so, accomplish the sample, upwards pack up high pressure water inlet pipe line and sewage pipes in step, propose this multi-functional fine and close rock geological exploration drill bit from the well drilling, take out the sample.

Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly, the device and equipment used in the whole operation of the invention are realized on a movable truck, so that the invention has complete maneuverability, the coring operation process is not limited by terrain and landform, the speed and the accuracy are high, and a new thought and a new device are provided for geological exploration sampling.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention.

FIG. 2 is a second schematic structural diagram of the present invention.

Fig. 3 is a partial structural schematic diagram of the present invention.

FIG. 4 is an isometric view of a geological coring specialized drill bit of the present invention.

FIG. 5 is a front view of the geological coring specialized drill bit of the present invention.

FIG. 6 is a cross-sectional view of the geological coring specialized drill of the present invention.

FIG. 7 is a schematic view of the crushing portion of the geological coring bit of the present invention.

FIG. 8 is an isometric view of the cutting portion of the geological coring bit of the present invention with the slag removal seat, cutting flange seat and various cutting wheels removed.

FIG. 9 is an isometric view of the cutting portion of the earth coring specialized bit of the present invention with the cutting flange seat and various cutting wheels removed.

FIG. 10 is a second isometric view of the cutting portion of the geological coring bit of the present invention with the cutting flange seat and cutting wheels removed.

FIG. 11 is a cross-sectional view of the cutting portion of the geological coring bit of the present invention with the cutting flange seat and cutting wheels removed.

Detailed Description

The embodiments of the present invention are further described below with reference to the drawings.

As shown in fig. 1-11, the tight rock geological exploration sampling drilling system comprises a truck, a common drill bit 1, a geological coring special drill bit 2, an electric slip 3, a slip driving motor 4, a gantry crane device, a drilling guide pipe assembly, a top drive 5, a water supply device and a sewage discharge device, wherein the truck comprises a truck head 6 and a truck body, the truck body is provided with a carriage bottom plate 7 by taking the direction of the truck head 6 as the forward direction, the common drill bit 1 and the geological coring special drill bit 2 are both arranged on the carriage bottom plate 7, the middle part of the carriage bottom plate 7 is provided with an up-down through round hole 8, the electric slip 3 is fixedly arranged in the middle part of the lower surface of the carriage bottom plate 7 and is positioned under the round hole 8, the slip driving motor 4 is fixedly arranged in the middle part of the left side of the lower surface of the carriage bottom plate 7 and is in driving connection with the electric slip 3, the gantry crane device is fixedly arranged on, the lower end of a cable rope of the gantry crane device is fixedly connected with the upper end of the top drive 5, the water supply device and the sewage discharge device are both arranged on the carriage bottom plate 7, a first fixed frame 9 is fixedly arranged on the front side portion of the carriage bottom plate 7, a plurality of drill rods 10 are placed on the first fixed frame 9, a second fixed frame 11 is fixedly arranged on the rear side portion of the carriage bottom plate 7, and a plurality of stratum well sleeves 12 are placed on the second fixed frame 11.

The gantry crane device comprises a horizontal frame, a horizontal sliding plate 13, a cable reel 14 and a cable winding motor 15, wherein the horizontal frame consists of two first horizontal guide rails 16 and two first vertical support plates 17, the length directions of the two first horizontal guide rails 16 are horizontally arranged along the front-back direction, the two first horizontal guide rails 16 are arranged side by side on the left and right, the two first vertical support plates 17 are vertically arranged along the left-right direction, the two first vertical support plates 17 are arranged side by side on the front and back, the first vertical support plate 17 at the front side is fixedly connected to the front ends of the two first horizontal guide rails 16, the first vertical support plate 17 at the rear side is fixedly connected to the rear ends of the two first horizontal guide rails 16, the bottom plate 7 of the carriage is fixedly connected with four vertical upright posts 18, the vertical projections of the four upright posts 18 are positioned at the rectangular positions, and the bottom of the first horizontal guide rail 16 at the, the bottom of a first horizontal guide rail 16 on the right side is fixedly connected to the tops of two vertical upright posts 18 on the right side, the bottom of a horizontal sliding plate 13 is slidably connected to the two first horizontal guide rails 16, a rope-penetrating long hole (not shown) is formed in the middle of the horizontal sliding plate 13, a reel bracket 19 located right above the rope-penetrating long hole is fixedly installed in the middle of the horizontal sliding plate 13, a cable reel 14 is rotatably installed on the reel bracket 19, a cable winding motor 15 is fixedly installed in the middle of the right side of the horizontal sliding plate 13, a central shaft of the cable reel 14 and a power shaft of the cable winding motor 15 are both horizontally arranged along the left-right direction, the left end of the power shaft of the cable winding motor 15 is in transmission connection with the right end of the central shaft of the cable reel 14, a coiled cable (not shown) is wound on the cable reel 14, and the extending, two racks 20 are fixedly connected between the two first vertical support plates 17, the two racks 20 are arranged in bilateral symmetry, the rack 20 on the left side is positioned on the left lower side of the guide rail on the left side, the rack 20 on the right side is positioned on the right lower side of the guide rail on the right side, a vertical servo gear motor 21 is respectively and fixedly installed on the periphery of the horizontal sliding plate 13, the lower end of a power shaft of the vertical servo gear motor 21 downwards penetrates through the horizontal sliding plate 13 and is fixedly installed with a driving gear 22, the two driving gears 22 on the left side are in transmission connection with the rack 20 on the left side;

the first vertical extension board 17 trailing flank of front side, the first vertical extension board 17 leading flank of rear side, the equal fixed mounting in upper surface front side middle part and the rear side middle part of horizontal sliding plate 13 has pipeline leading wheel group seat, the pipeline leading wheel group seat of installation on the first vertical extension board 17 leading flank of front side includes door style of calligraphy extension board 23 and two leading wheels 24 and constitutes, door style of calligraphy extension board 23 upside, downside and front side are all uncovered, door style of calligraphy extension board 23's the left and right sides board front side fixed connection is on the first vertical extension board 17 trailing flank of rear side, two leading wheels 24 are around side by side and the center pin sets up along left and right directions level, both ends are rotated respectively and are installed on door style of calligraphy extension board 23's the left and right sides board about two leading wheels 24's center pin.

The well drilling guide pipe assembly comprises a first guide pipe 25 and a second guide pipe 26, the central lines of the first guide pipe 25, the second guide pipe 26 and the round hole 8 are overlapped, the lower end of the first guide pipe 25 is arranged at the center of the round hole 8 and is in up-and-down butt joint with the central hole of the electric slip 3, the outer circumference of the lower end of the first guide pipe 25 is fixedly connected with four connecting rods 27 arranged in a circumferential array, the connecting rods 27 are arranged along the radial direction of the first guide pipe 25, the outer ends of the four connecting rods 27 are fixedly connected on the inner circle of the round hole 8, the outer diameter of the second guide pipe 26 is the same as the inner diameter of the first guide pipe 25, the second guide pipe 26 is inserted in the first guide pipe 25, the upper side part of the second guide pipe 26 extends out of the upper end of the first guide pipe 25, the left side wall and the right side wall of the first guide pipe 25 are vertically provided with guide long holes 28, the lower side part of the left side wall and the lower side wall of the second guide pipe 26 are fixedly, the left limit guide rod 29 correspondingly penetrates through and is inserted in the left guide long hole 28 and is in sliding connection with the left guide long hole 28, the right limit guide rod 29 correspondingly penetrates through and is inserted in the right guide long hole 28 and is in sliding connection with the right guide long hole 28, and two groups of connecting rod driving devices for driving the second guide pipe 26 to move up and down are fixedly installed on the carriage bottom plate 7;

the two groups of connecting rod driving devices have the same structure and are symmetrically arranged in the front and back direction of the first guide pipe 25, the connecting rod driving device at the rear side comprises a horizontal servo speed reducing motor 30, a horizontal lead screw 31, a sliding support 32 and a first connecting rod 33, the horizontal servo speed reducing motor 30 and the horizontal lead screw 31 are horizontally arranged along the front and back direction, two second horizontal guide rails positioned between the round hole 8 and the rear side edge of the carriage bottom plate 7 are fixedly arranged on the carriage bottom plate 7 along the front and back direction, the two second horizontal guide rails are arranged side by side in the left and right direction, the horizontal lead screw 31 is positioned in the middle of the two second horizontal guide rails, the front side part and the rear side part of the two second horizontal guide rails are fixedly connected with a second vertical support plate 34, the second vertical support plate 34 is vertically arranged along the left and right direction, the horizontal servo speed reducing motor 30 is fixedly arranged on the rear side surface of the second vertical support plate 34 at the rear side, the front end of a, the front end of the horizontal screw rod is rotatably installed on a second vertical support plate 34 on the front side, the middle part of the sliding support 32 is in threaded connection with the horizontal screw rod, the left side and the right side of the bottom of the sliding support 32 are respectively in sliding connection with two second horizontal guide rails, the first connecting rod 33 is obliquely arranged in a high-back direction, the lower end of the first connecting rod 33 is hinged on the sliding support 32, the upper end of the first connecting rod 33 is hinged on the upper side part of the back side wall of the second guide pipe 26, and an upper end hinged shaft and a lower end hinged shaft of the first connecting rod 33 are horizontally arranged along the left-right direction;

a first circular ring-shaped support 35 is fixedly connected to the outer circle of the upper end of the second guide pipe 26, a second circular ring-shaped support 36 which is positioned under the first circular ring-shaped support 35 and is sleeved on the second guide pipe 26 is slidably connected to the outer circle of the upper side of the second guide pipe 26, two first hydraulic cylinders 37 are hinged between the first circular ring-shaped support 35 and the second circular ring-shaped support 36, the two first hydraulic cylinders 37 are symmetrically arranged at the front side and the rear side of the second guide pipe 26 in a front-rear manner, a plurality of second connecting rods 38 which are arranged in a circumferential array manner are arranged around the second guide pipe 26, the upper end of each second connecting rod 38 is hinged on the first circular ring-shaped support 35, anchor bolt fixing seats 39 are fixedly arranged at the lower end of each second connecting rod 38, third connecting rods 40 are hinged on the upper side of each second connecting rod 38, the lower end of each third connecting rod 40 is hinged on the second circular ring-shaped support 36, The upper end articulated shaft and the lower end articulated shaft of the third connecting rod 40 are both horizontally arranged and are vertical to the length direction of the second connecting rod 38, and the first circular ring-shaped support 35, each second connecting rod 38, each third connecting rod 40 and the second circular ring-shaped support 36 form a drilling guide pipe fixing frame similar to an umbrella framework structure.

The water supply device comprises a water supply tank 41, a high-pressure water supply pump 42, a high-pressure water inlet pipeline 43 and a high-pressure water inlet pipe reel 44, wherein the water supply tank 41 and the high-pressure water supply pump 42 are fixedly arranged at the left side part of the front side of the carriage bottom plate 7, the high-pressure water inlet pipe reel 44 is rotatably arranged on the first fixed frame 11, a water outlet of the water supply tank 41 is connected with a central water inlet of the high-pressure water inlet pipe reel 44 through the high-pressure water supply pipe 45, the high-pressure water supply pump 42 is arranged on the high-pressure water supply pipe 45, the high-pressure water inlet pipeline 43 is wound on the high-pressure water inlet pipe reel 44, one end of the high-pressure water inlet pipeline 43 is connected with the water outlet of the high-pressure water inlet pipe reel 44, the other end of the high-pressure water inlet pipeline 43 extends out of the high-pressure water inlet pipe 44 and vertically, the other end of the high pressure water inlet line 43 is bent downward to pass through the horizontal sliding plate 13.

The sewage discharging device comprises a sewage discharging tank 46 and a sewage discharging pump 47, a sewage pipeline 48 and a sewage pipe reel 49, wherein the sewage tank 46 and the sewage pump 47 are fixedly arranged at the left side part of the rear side of the carriage bottom plate 7, the sewage pipe reel 49 is rotatably arranged on the second fixed frame 9, a water inlet of the sewage tank 46 is connected with a central water outlet of the sewage pipe reel 49 through a water return pipe 50, the sewage pump 47 is arranged on the water return pipe 50, the sewage pipeline 48 is wound on the sewage pipe reel 49, one end of the sewage pipeline 48 is connected with the water inlet of the sewage pipe reel 49, the other end of the sewage pipeline 48 extends out of the sewage pipe reel 49 and vertically and upwards passes through the middle of the two guide wheels 24 arranged on the first vertical support plate 17 at the rear side, the other end of the sewage pipeline 48 horizontally bends forwards to pass through the middle of the two guide wheels 24 arranged at the middle part of the rear side of the upper surface of the horizontal sliding plate 13, and the other end of.

The geological coring special drill bit 2 comprises a tunneling part, a crushing part and a cutting part, the tunneling part, the crushing part and the cutting part are sequentially connected from top to bottom, the top of the tunneling part is provided with a high-pressure water inlet pipe connector 51 and a sewage pipe connector 52, the bottom of the tunneling part is movably connected with the top of the crushing part, the top of the cutting part is rotatably connected with the bottom of the crushing part, the tunneling part is internally provided with a high-pressure water supply annular cavity 53 and a sewage discharge channel 54, the lower end of the high-pressure water inlet pipe connector 51 is communicated with the high-pressure water supply annular cavity 53, the lower end of the sewage discharge pipe connector 52 is communicated with the sewage discharge channel 54, the crushing part is internally provided with a scouring annular cavity 55, the inner part of the scouring annular cavity 55 is provided with a crushing channel 56 which is butted with the sewage discharge channel 54, the high-pressure water supply annular cavity 53 is communicated with the, a plurality of high-pressure water spraying channels 59 which are through up and down are arranged on the cutting part, the upper end ports of the high-pressure water spraying channels 59 are communicated with the scouring annular cavity 55, high-pressure water spraying annular cavities 60 which are butted with the lower end ports of the high-pressure water spraying channels 59 are arranged in the cutting part, a plurality of cutting wheels 61 in circumferential arrays are rotatably arranged at the bottom of the cutting part, a plurality of high-pressure spraying pipes 62 which are butted with the high-pressure water spraying annular cavities 60 are arranged at the bottom of the cutting part, the nozzles of the high-pressure spraying pipes 62 are respectively arranged towards the cutting wheels 61, and a plurality of supporting mechanisms which are in pressing contact with the well wall are arranged on the outer circumference of the tunneling part and the outer circumference;

the tunneling part comprises a tunneling barrel body 63, the top and the bottom of the tunneling barrel body 63 are both open, the top of the tunneling barrel body 63 is fixedly connected with an upper flange end cover 64, the bottom of the tunneling barrel body 63 is fixedly connected with a lower flange end cover 65, the middle parts of the upper flange end cover 64 and the lower flange end cover 65 are both provided with a vertically through sewage discharge hole 66, a sewage discharge pipeline 67 is fixedly connected between the upper flange end cover 64 and the lower flange end cover 65, a sewage discharge channel 54 is formed in the sewage discharge pipeline 67, the upper end port and the lower end port of the sewage discharge pipeline 67 are respectively correspondingly butted with the upper side sewage discharge hole 66 and the lower side sewage discharge hole 66, the lower end of a sewage discharge pipeline connector 52 is fixedly connected with the middle part of the upper flange end cover 64 and butted with the upper side sewage discharge hole 66, a high-pressure water supply ring cavity 53 is formed between the outer circle of the sewage discharge pipeline 67 and the inner circle of the tunneling, the lower ends of four high-pressure water inlet pipe connectors 51 are fixedly mounted on an upper flange end cover 64 and communicated with a high-pressure water supply ring cavity 53, the middle part of a lower flange end cover 65 is fixedly connected with a corrugated pipe 68, the upper end port of the corrugated pipe 68 is butted with a lower side blowdown hole 66, four high-pressure hoses 57 are arranged, four high-pressure hoses 57 are circumferentially arranged around the corrugated pipe 68 in an array manner, the upper ends of the four high-pressure hoses 57 are fixedly mounted on the lower flange end cover 65 and communicated with the high-pressure water supply ring cavity 53, four second hydraulic cylinders 69 arranged in a circumferential array manner are fixedly mounted on the outer edge of the lower flange end cover 65, the second hydraulic cylinders 69 are vertically arranged, piston rods of the second hydraulic cylinders 69 extend downwards out of the cylinder bodies, and the top parts of the cylinder bodies of the;

the crushing part comprises a crushing cylinder body 70, the top and the bottom of the crushing cylinder body 70 are both open, a friction circular tube 71 is concentrically arranged in the crushing cylinder body 70, the upper end of the friction circular tube 71 is fixedly connected with the inner top of the crushing cylinder body 70 in an integrated forming way, the inner diameter of the friction circular tube 71 is the same as the inner diameter of the sewage discharge hole 66, the outer diameter of the friction circular tube 71 is smaller than the inner diameter of the crushing cylinder body 70, the lower end of the friction circular tube 71 is positioned at the inner lower side part of the crushing cylinder body 70, a first thrust bearing 72 sleeved on the outer circumference of the top of the friction circular tube 71 is arranged at the inner top of the crushing cylinder body 70, the outer circumference of the first thrust bearing 72 is contacted with the inner circumference of the crushing cylinder body 70, a plurality of first water seals 73 are sleeved on the outer circumference of the lower side part of the friction circular tube 71, a conductive sliding ring 74 is fixedly sleeved on the outer circumference of the bottom, the lower ends of piston rods of four second hydraulic cylinders 69 are hinged to the outer edge of the upper surface of the crushing cylinder 70, the lower ends of four high-pressure hoses 57 are fixedly mounted on the upper surface of the crushing cylinder 70, the upper surface of the crushing cylinder 70 is provided with four high-pressure water flow injection channels, the lower ends of the four high-pressure hoses 57 are respectively butted with the upper ends of the four high-pressure water flow injection channels, four high-pressure water flow injection holes 76 are formed in the periphery of the upper side part of the inner side wall of the crushing cylinder 70, the lower ends of the four high-pressure water flow injection channels are respectively communicated with the four high-pressure water flow injection holes 76, the inner wall of the friction circular tube 71 is uniformly provided with friction elongated slots 77 along the axial direction;

the cutting part comprises a cutting barrel 79, the top and the bottom of the cutting barrel 79 are both open, the cutting channel 58 is formed inside the cutting barrel 79, the top of the cutting barrel 79 is concentrically and fixedly connected with a diversion barrel 80, the top and the bottom of the diversion barrel 80 are both open, an inner circle at the bottom of the diversion barrel 80 is fixedly connected with a radial plate support 81, a crushing shaft 82 is concentrically arranged in the diversion barrel 80, the lower end of the crushing shaft 82 is fixedly connected with the middle part of the radial plate support 81, the diversion barrel 80 is inserted in the crushing barrel 70 and sleeved outside a friction circular pipe 71, a scouring annular cavity 55 is formed between the outer circle of the diversion barrel 80 and the inner circle of the crushing barrel 70, the crushing shaft 82 extends into the friction circular pipe 71, a spiral cutting blade 83 is axially and integrally formed on the crushing shaft 82, a spiral diversion blade 84 which is opposite to the spiral cutting blade 83 is axially and integrally formed on the outer circumference of the diversion barrel, a plurality of rotary blades 85 arranged in a circumferential array are integrally formed on the excircle of the upper side of the guide cylinder body 80, an annular plate 86 is fixedly connected to the excircle of the upper end of the guide cylinder body 80, a second thrust bearing 87 is sleeved on the excircle of the top of the guide cylinder body 80, the excircle of the second thrust bearing 87 is in contact with the inner circle of the crushing cylinder body 70, the upper surface of the second thrust bearing 87 is in pressing contact with the lower surface of the annular plate 86, the inner edge of the upper surface of the annular plate 86 is in pressing contact with the outer edge of the lower surface of the first thrust bearing 72, each first water seal 73, each conductive sliding ring 74 and each deep groove ball bearing 75 are embedded between the guide cylinder body 80 and the friction circular tube 71, the injection directions of the four high-pressure water flow perforations 76 are respectively arranged correspondingly towards each rotary blade 85, a rotary ring groove 88 with an open top is formed on the top of the cutting, a second water seal 89 sleeved on the outer circumference of the pipe column 78 is arranged in the rotary ring groove 88;

a core taking seat 90 is fixedly arranged at the bottom of the cutting cylinder 79, a core taking channel 91 which is through up and down and is butted with the cutting channel 58 is arranged in the middle of the core taking seat 90, a slag discharging seat 92 is fixedly connected at the bottom of the core taking seat 90, a slag discharging channel 93 which is through up and down and is butted with the slag discharging channel is arranged in the middle of the slag discharging seat 92, each high-pressure water spraying channel 59 is vertically arranged at the eccentric parts of the cutting cylinder 79, the core taking seat 90 and the slag discharging seat 92 in a penetrating way, arc-shaped arranging grooves 94 are respectively arranged at the bottoms of the cutting cylinder 79 and the core taking seat 90, the arc-shaped arranging groove 94 at the upper side is correspondingly connected with the lower port of the cutting channel 58, the arc-shaped arranging groove 94 at the lower side is correspondingly connected with the lower port of the core taking channel 91, waterproof motors 95 are respectively arranged at one side of the inner wall of the lower port of the cutting channel 58 and one, the baffle 96 at the upper side correspondingly slides in the arc-shaped accommodating groove 94 at the upper side and is used for plugging the lower port of the cutting channel 58, the baffle 96 at the lower side correspondingly slides in the arc-shaped accommodating groove 94 at the lower side and is used for plugging the lower port of the coring channel 91, two waterproof motors 95 are both connected with the conductive slip ring 74 through waterproof cables (not shown), the middle part of the slag discharging seat 92 is provided with an annular groove 97, the bottom of the slag discharging seat 92 is fixedly provided with a cutting flange seat 98, the middle part of the cutting flange seat 98 is provided with a slag discharging hole 99 which is through up and down and is butted with the slag discharging channel 93, the high-pressure water spraying annular cavity 60 is formed between the top of the cutting flange seat 98 and the annular groove 97, the bottom of the cutting flange seat 98 is fixedly connected with a conical slag collecting hopper 100 with a small upper part and a large lower part, the upper port of the conical slag collecting hopper 100 is butted with the slag, each cutting wheel 61 rotates on each support 101 correspondingly, the central shaft of each cutting wheel 61 is arranged along the radial direction of the cutting flange seat 98, the cutting surface of each cutting wheel 61 is arranged towards the center of the cutting flange seat 98, the inner end of the central shaft of each cutting wheel 61 is fixedly provided with a driving impeller 102, each high-pressure spray pipe 62 is fixedly arranged on the cutting flange seat 98, and the nozzle of each high-pressure spray pipe 62 is arranged downwards towards the upper side part of each driving impeller 102;

four mounting grooves 103 arranged in a circumferential array are formed in the outer circumference of the tunneling barrel 63 and the outer circumference of the crushing barrel 70, the lower side and the front side of each mounting groove 103 at the front side are open, each mounting groove 103 is provided with the supporting mechanism, the supporting mechanism at the front side comprises a hinged support 104, a vertical supporting pressing plate 105 and a third hydraulic oil cylinder 106, the hinged support 104 is fixedly mounted at the bottom of the mounting groove 103 at the front side through a plurality of screws 107, the vertical supporting pressing plate 105 is vertically arranged along the left-right direction and is positioned in front of the mounting groove 103 at the front side, the bottom of the cylinder body of the third hydraulic oil cylinder 106 is hinged at the upper side part of the hinged support 104, the piston rod of the third hydraulic oil cylinder 106 extends forwards and downwards, the front end of the piston rod of the third hydraulic oil cylinder 106 is hinged at the middle part of the rear side surface of the vertical supporting, the fourth connecting rod 108 is arranged to incline backwards, two parallel fifth connecting rods 109 are hinged between the rear side of the fourth connecting rod 108 and the lower side of the hinged support 104, and the front side of the vertical supporting pressing plate 105 is a rough surface.

A working method of a tight rock geological exploration sampling drilling system specifically comprises the following steps:

(1) driving the whole system to a designated operation position by a truck, adjusting the well drilling guide pipe assembly to be in a state of being fixedly connected with the carriage bottom plate 7, and preparing for next drilling operation;

(2) placing the common drill bit 1 in a central hole of an electric slip 3, buckling up the drill rods 10 one by one through a top drive 5 and the electric slip 3, performing drilling operation on the stratum until the depth of a compact rock stratum is drilled, then buckling the drill rods 10 one by one through the top drive 5 and the electric slip 3, hoisting the drill rods 10 back to a first fixing frame 9, and taking down the common drill bit 1;

(3) buckling up and buckling each stratum well casing pipe 12 one by one through the top drive 5 and the electric slips 3, butting and lowering each stratum well casing pipe 12 into a well, fixing the well wall of the well and preventing collapse;

(4) the electric slips 3 are disassembled, the drill bit 2 special for geological coring is placed in the center of an upper port of a well, the upper ends of four high-pressure water inlet pipe connectors 51 are fixedly connected with the lower end of a high-pressure water inlet pipeline 43 through a five-way pipe, the upper end of a drain pipe connector 52 is fixedly connected with the lower end of a drain pipeline 48, the drill bit 2 special for geological coring is placed at the bottom of the well through the high-pressure water inlet pipeline 43 and the drain pipeline 48, compact rock is crushed and sampled, after sampling is completed, the high-pressure water inlet pipeline 43 and the drain pipeline 48 are wound, the drill bit 2 special for geological coring is lifted out of the well, and samples are taken out;

(5) and the individual stratum well casings 12 are broken off one by one through the top drive 5 and the electric slips 3, and the individual stratum well casings 12 are hung back to the second fixed frame 11.

The step (1) is specifically as follows: the truck drives the whole system to a designated operation position, wherein, initially, two sliding supports 32 are close to the round hole 8, the upper end of the second guide pipe 26 is at the highest position, two limit guide rods 29 are positioned at the top of the corresponding guide long hole 28, the piston rods of two first hydraulic cylinders 37 are in an extending state, each second connecting rod 38 and each third connecting rod 40 are close to the second guide pipe 26, namely, the drilling guide pipe fixing frame is in a contraction state like an umbrella framework, the two first hydraulic cylinders 37 are started, the piston rods of the two first hydraulic cylinders 37 synchronously contract upwards and drive the second annular support 36 to move upwards along the outer circumference of the second guide pipe 26, each second connecting rod 38 and each third connecting rod 40 are far away from the second guide pipe 26, the drilling guide pipe fixing frame is opened like the umbrella framework, and then two horizontal servo speed reduction motors 30 are started to respectively drive the corresponding horizontal screw rods to rotate, the horizontal screw rod on the front side drives the sliding support 32 on the front side to move forwards, the horizontal screw rod 31 on the rear side drives the sliding support 32 on the rear side to move backwards, so that the lower ends of the two first connecting rods 33 are far away from the round hole 8 along with the corresponding sliding support 32, the upper ends of the two first connecting rods 33 can drive the second guide pipe 26 to move downwards, the two limiting guide rods 29 are located at the bottom of the corresponding guide long holes 28, at the moment, the lower ends of the second connecting rods 38 are in contact with the carriage bottom plate 7, the lower surfaces of the anchor bolt fixing seats 39 are tightly pressed on the upper surface of the carriage bottom plate 7, and the anchor bolt fixing seats 39 are fixedly installed on the carriage bottom plate 7 through the plurality of anchor bolts respectively, so that the preparation work for the next drilling operation is completed.

The step (2) is specifically as follows: the ordinary drill bit 1 is clamped and fixed in a central hole of an electric slip 3, four vertical servo speed reducing motors 21 synchronously drive corresponding driving gears 22 to rotate, two driving gears 22 on the left side are in transmission connection with a rack 20 on the left side, two driving gears 22 on the right side are in transmission connection with the rack 20 on the left side, therefore, a horizontal sliding plate 13 moves back and forth on two first horizontal guide rails 16, the horizontal sliding plate 13 stops moving forwards above each drill rod 10, a cable winding motor 15 drives a cable reel 14 to rotate for releasing cables, a top drive 5 is driven to descend to the position right above a first drill rod 10, the top drive 5 is clamped and tightly holds the top of the first drill rod 10, the cable winding motor 15 drives the cable reel 14 to rotate reversely for taking up cables, the top drive 5 lifts the first drill rod 10, the four vertical servo speed reducing motors 21 synchronously reverse again, and accordingly the horizontal sliding plate 13 is driven to move reversely to the position right above a second guide pipe, then, the cable winding motor 15 drives the cable reel 14 to rotate for cable laying, the top drive 5 drives the first drill rod 10 to fall into the second guide pipe 26 until the lower end of the first drill rod 10 falls to the lower end of the first guide pipe 25, the lower end of the first drill rod 10 is buckled with the upper end of the common drill bit 1 under the action of the top drive 5 and the electric slip 3, the slip drive motor 4 is started, the slip drive motor 4 drives the electric slip 3 to clasp the first drill rod 10 to rotate and drives the first drill rod 10 to gradually move downwards, so that the common drill bit 1 performs drilling operation on the stratum, during the drilling operation, the top drive 5 buckles the drill rods 10 one by one until the common drill bit 1 drills into the depth of the compact stratum, the top drive 5 lifts the whole connected drill rods 10 together, and the electric slip 3 clamps the second drill rod 10 on the upper part, and (3) the first drill rod 10 on the upper part and the second drill rod 10 on the upper part are broken off through the top drive 5, and the first drill rod 10 on the upper part is hoisted back to the first fixing frame 9, so that the drill rods 10 are broken off one by one, the drill rods 10 are hoisted back to the first fixing frame 9, and the common drill bit 1 is taken down.

The step (3) is specifically as follows: the four vertical servo reducing motors 21 drive the horizontal sliding plate 13 to move backwards on the two first horizontal guide rails 16 to be right above each stratum well casing 12, the cable winding motor 15 drives the cable reel 14 to rotate for releasing the cable, so that the top drive 5 is lowered to be right above the first stratum well casing 12, the top drive 5 is clamped and clasped on the top of the first stratum well casing 12, the cable winding motor 15 drives the cable reel 14 to rotate reversely for retracting the cable, the top drive 5 lifts the first stratum well casing 12, the four vertical servo reducing motors 21 synchronously rotate reversely again, so as to drive the horizontal sliding plate 13 to move reversely to be right above the second guide pipe 26, then the cable winding motor 15 drives the cable reel 14 to rotate for releasing the cable, the top drive 5 drives the first stratum well casing 12 to fall into the second guide pipe 26 until the lower end of the first stratum well casing 12 falls through the lower end of the first guide pipe 25 and is inserted into the slips 3, the electric slip 3 clamps the first stratum well casing 12, then the cable winding motor 15 drives the cable reel 14 to rotate reversely for taking up the cable, the top drive 5 is lifted out of the second guide pipe 26, the four vertical servo speed reducing motors 21 drive the horizontal sliding plate 13 to move backwards to the position right above each stratum well casing 12 again, the cable winding motor 15 drives the cable reel 14 to rotate for paying off the cable, the top drive 5 is driven to move to the position right above the second stratum well casing 12, the top drive 5 clamps the top of the second stratum well casing 12 tightly, the cable winding motor 15 drives the cable reel 14 to rotate reversely for taking up the cable, the top drive 5 lifts the second stratum well casing 12, the four vertical servo speed reducing motors 21 rotate reversely again synchronously, so as to drive the horizontal sliding plate 13 to move reversely to the position right above the second guide pipe 26, then the cable winding motor 15 drives the cable reel 14 to rotate for paying off the cable, the top drive 5 drives the second stratum well casing 12 to fall into the second guide pipe 26 until the lower end of the second stratum well casing 12 falls to the lower end of the first guide pipe 25 and is in butt joint with the upper end of the first stratum well casing 12, the lower end of the second stratum well casing 12 is buckled with the upper end of the first stratum well casing 12 under the action of the top drive 5 and the electric slip 3, and thus, the stratum well casings 12 are buckled one by one through the top drive 5 and the electric slip 3, the stratum well casings 12 are in butt joint with each other and are put into a drilling well, the well wall of the drilling well is fixed, and collapse is prevented.

The step (4) is specifically as follows: the electric slips 3 are disassembled, the drill bit 2 special for geological coring is placed in the center of an upper port of a well, the upper ends of four high-pressure water inlet pipe connectors 51 are fixedly connected with the lower end of a high-pressure water inlet pipeline 43 through a five-way pipe, the upper end of a drain pipe connector 52 is fixedly connected with the lower end of a drain pipeline 48, the high-pressure water inlet pipeline 43 is unreeled through a high-pressure water inlet pipe reel 44, the drain pipeline 48 is unreeled through a drain pipe reel 49, the drill bit 2 special for geological coring is further lowered into the bottom of the well through the high-pressure water inlet pipeline 43 and the drain pipeline 48, four third hydraulic cylinders 106 on the tunneling cylinder body 63 are started, piston rods of the four third hydraulic cylinders 106 on the tunneling cylinder body 63 extend out to fixedly support corresponding vertical supporting pressing plates 105 on the inner wall of the well, so that the tunneling cylinder body 63 is fixed in the well, and then the breaking part and the cutting part, then the four third hydraulic oil cylinders 106 on the crushing cylinder body 70 are started, the piston rods of the four third hydraulic oil cylinders 106 on the crushing cylinder body 70 extend out to fixedly support the corresponding vertical supporting pressure plates 105 on the inner wall of the well drilling, so that the crushing cylinder body 70 is fixed in the well drilling, the piston rods of the four third hydraulic oil cylinders 106 on the tunneling cylinder body 63 are retracted to be separated from the inner wall of the well drilling, the tunneling part moves downwards for a certain distance through the contraction of the piston rods of the four second hydraulic oil cylinders 69, the piston rods of the four third hydraulic oil cylinders 106 on the tunneling cylinder body 63 extend out to fixedly support the corresponding vertical supporting pressure plates 105 on the inner wall of the well drilling, so that the tunneling cylinder body 63 is fixed in the well drilling, the piston rods of the four third hydraulic oil cylinders 106 on the crushing cylinder body 70 are retracted to be separated from the inner wall of the well drilling, and then the, then, piston rods of four third hydraulic oil cylinders 106 on the crushing cylinder 70 extend out to fixedly support corresponding vertical supporting pressing plates 105 on the inner wall of the drilled well, so that the crushing cylinder 70 is fixed in the drilled well, and the drilling bit 2 special for geological coring moves forward in a creeping manner by repeating the operation;

in the creeping forward process of the drill bit 2 special for geological coring, the high-pressure water supply pump 42 and the sewage pump 47 are started, the high-pressure water supply pump 42 injects water in the water supply tank 41 into the high-pressure water supply annular cavity 53 in the tunneling part through the high-pressure water supply pipe 45, the high-pressure water inlet pipeline 43 and the four high-pressure water inlet pipe connectors 51, the high-pressure water enters the four high-pressure water jet channels through the four high-pressure hoses 57, the high-pressure water enters the scouring annular cavity 55 through the four high-pressure water jet holes 76 and impacts each rotating blade 85 on the outer circumference of the upper side part of the guide cylinder 80 to drive the guide cylinder 80 to rotate at high speed, the guide cylinder 80 drives the cutting part to rotate integrally, the high-pressure water downwards rushes into each high-pressure water spray channel 59 through the spiral guide blade 84 in the scouring annular cavity 55, the high-pressure, high-pressure water is sprayed out through each high-pressure spray pipe 62, part of the high-pressure water impacts each driving impeller 102 to drive each cutting wheel 61 to rotate at a high speed, part of the high-pressure water impacts compact rocks to be mined to perform crushing operation, meanwhile, each cutting wheel 61 rotates to cut and crush the compact rocks, the high-pressure water is reversely gathered towards the conical slag collecting hopper 100 and flows back upwards due to the small space at the bottom of a drill well, so that crushed compact rock slag is sent into the conical slag collecting hopper 100, upwards enters the crushing channel 56 through the slag discharge hole 99, the slag discharge channel 93, the coring channel 91 and the cutting channel 58, is further cut and crushed under the action of the spiral cutting blade 83 rotating at a high speed, is in friction crushing with the friction long groove 77 on the inner wall of the friction circular pipe 71, then enters the sewage discharge pipeline 67 through the corrugated pipe 68, is discharged out of the tunneling barrel 63 through the sewage discharge pipe 67 and is discharged to the ground through, finally, the waste water enters the waste water discharging tank 46 through the waste water pump 47 and the water return pipe 50, wherein initially, the two baffles 96 are both positioned at the eccentric position, and the coring channel 91 and the cutting channel 58 are both opened;

when a certain appointed position is reached, the waterproof motor 95 on the upper side is started, the baffle 96 on the upper side is rotated to the center to plug the lower port of the cutting channel 58, then a broken compact rock sample enters the coring channel 91, then the waterproof motor 95 on the lower side is started, the baffle 96 on the lower side is rotated to the center to plug the lower port of the coring channel 91, in this way, sampling is completed, the high-pressure water inlet pipeline 43 and the sewage pipeline 48 are synchronously upwards retracted, the multifunctional compact rock geological exploration drill bit is lifted out from a drilled well, and the sample is taken out.

The above embodiments are merely to illustrate rather than to limit the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that; modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.