阅读说明：本技术 一种预制不同几何特征中部锁固型岩体裂隙切割系统 (Prefabricated different geometric characteristics middle locking type rock mass crack cutting system ) 是由 苏占东 李昆泽 周思哲 夏京 李高 李娴 王厚帅 裴森龙 杜斌 高常祺 陶嘉伟 于 2021-09-16 设计创作，主要内容包括：本发明公开一种预制不同几何特征中部锁固型岩体裂隙切割系统,包括：驱动机箱；所述驱动机箱内安装有切割发动机和齿轮发动机,滑轨组和切割机构；切割机构包括金刚砂线锯和滑动安装在滑轨组上的U型角度尺下盘；U型角度尺下盘顶面开设有滑槽,U型角度尺下盘顶面通过滑槽滑动安装有U型角度尺上盘；U型角度尺上盘两端还安装有调节组件；调节组件上固定设置有岩石。本发明确保了预制中部锁固型断续裂隙岩体的完整性；并通过切割机构和驱动组件的配合使用解决了节理倾角、长度难以精确控制的问题；可以在预制裂隙时对裂隙的倾角和长度进行精确控制切割,同时保证岩体的完整性,且操作简单易于上手。(The invention discloses a prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics, which comprises: a drive chassis; a cutting engine, a gear engine, a sliding rail set and a cutting mechanism are arranged in the driving machine box; the cutting mechanism comprises a carborundum wire saw and a lower disc of a U-shaped angle ruler which is slidably arranged on the sliding rail group; the top surface of the lower disc of the U-shaped angle ruler is provided with a chute, and the top surface of the lower disc of the U-shaped angle ruler is slidably provided with an upper disc of the U-shaped angle ruler through the chute; adjusting components are further mounted at two ends of the upper disc of the U-shaped angle ruler; the adjusting component is fixedly provided with rocks. The invention ensures the integrity of the prefabricated middle locking type discontinuous fractured rock mass; the problem that the joint inclination angle and the length are difficult to control accurately is solved through the matching use of the cutting mechanism and the driving assembly; the method can accurately control and cut the inclination angle and the length of the crack when the crack is prefabricated, meanwhile, the integrity of the rock body is guaranteed, and the method is simple to operate and easy to operate.)

1. The utility model provides a prefabricated different geometric characteristics middle locking type rock mass crack cutting system which characterized in that includes:

a drive case (6); a cutting engine (8) and a gear engine (20) are arranged in the driving case (6);

a slide rail set (5); the slide rail group (5) is symmetrically arranged in the middle of the top surface of the driving case (6), and a U-shaped ruler vertical clamping groove (12) and a driving assembly for driving the U-shaped ruler vertical clamping groove (12) are also slidably arranged in the slide rail group (5); the driving assembly is in transmission connection with the gear motor (20);

a cutting mechanism; the cutting mechanism comprises a carborundum wire saw (3) and a U-shaped angle ruler lower disc (11) which is slidably arranged on the sliding rail group (5); a sliding groove is formed in the top surface of the U-shaped angle ruler lower disc (11), and a U-shaped angle ruler upper disc (4) is slidably mounted on the top surface of the U-shaped angle ruler lower disc (11) through the sliding groove; adjusting components are further mounted at two ends of the upper plate (4) of the U-shaped angle ruler; the adjusting component is fixedly provided with rocks;

the carborundum wire saw (3) is vertically arranged and corresponds to the vertical clamping groove (12) of the U-shaped ruler in position; the diamond wire saw (3) is limited between the adjusting component and the U-shaped angle ruler upper disc (4); the carborundum wire saw (3) is in transmission connection with the cutting engine (8) through a crank connecting rod assembly.

2. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the lower U-shaped angle ruler disk (11) and the upper U-shaped angle ruler disk (4) are arranged in the vertical clamping groove (12) of the U-shaped ruler; a mounting ring is formed at the bottom of the lower disc (11) of the U-shaped angle ruler; the slide rail group (5) comprises two slide rails which are symmetrically arranged about the center line of the top surface of the drive case (6); a sliding rod (36) is mounted at the top of the sliding rail; the lower disc (11) of the U-shaped angle ruler is arranged in a sliding mode through a mounting ring sleeved on the sliding rod (36).

3. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the adjustment assembly includes a level (34); the level gauge (34) is arranged on the outer peripheral surface of the end part of the upper plate (4) of the U-shaped angle ruler; the bottom of the level gauge (34) is also provided with an adjusting knob (35) for leveling the level gauge (34); one end of a spacing knob (10) is also arranged on the opposite sides of the two gradienters (34); the other end of the spacing knob (10) is provided with a mounting disc (2); the mounting disc (2) is also provided with a clamping groove (1); the two ends of the rock are respectively and fixedly arranged in the clamping grooves (1).

4. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the crank connecting rod mechanism comprises a connecting rod (21) which is vertically arranged and a crank (22) which is installed at the bottom of the connecting rod (21) in a transmission way; the top of the connecting rod (21) penetrates through the driving case (6) and is fixedly connected with the bottom of the frame body of the carborundum wire saw (3); the bottom of the crank (22) is rotationally connected to the disc (7); the disc (7) is mounted on the cutting motor (8).

5. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the cutting motor (8) comprises a cutting motor main body (29) and a first transmission gear (25) and a second transmission gear (27) which are arranged on the cutting motor main body (29); the first transmission gear (25) is in transmission connection with the second transmission gear (27) through a transmission belt (28); a connecting shaft insertion hole (26) for mounting a main body connecting shaft (23) is formed in the middle of the cutting engine main body (29); the main body connecting shaft (23) is also fixedly provided with the disc (7).

6. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the driving component comprises a transmission rack (15) and a transmission gear (14); the transmission rack (15) is arranged between the two slide rails and is arranged in a sliding manner with the two slide rails; one end of the transmission rack (15) close to the carborundum wire saw (3) is also fixedly connected with the U-shaped ruler vertical clamping groove (12); a transmission gear (14) meshed with the transmission rack (15) is further arranged at the top of the transmission rack (15); the transmission gear (14) is arranged on the gear mounting seat (30) through a gear connecting shaft (24); the gear mounting seat (30) is arranged on one side far away from the carborundum wire saw (3).

7. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the gear engine (20) is arranged at the top of the inner cavity of the driving case (6), and the gear engine (20) is in transmission connection with a transmission rod (32); the transmission rod (32) vertically penetrates through the top surface of the driving case (6) and is in transmission connection with the gear connecting shaft (24).

8. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the side wall of the drive case (6) is also provided with a storage box (19); a body controller (16) is arranged in the storage box (19); the machine body controller (16) is electrically connected with the gear motor (20) and the cutting motor (8) respectively.

9. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the body controller (16) is also electrically connected with a body controller screen (17) and a body controller switch (18); the screen (17) of the body controller is of a touch screen type structure.

10. The prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics is characterized in that: the bottom of the driving case (6) is also provided with four-corner clamping grooves (9); the cutting engine (8) is limited in the four-corner clamping groove (9).

Technical Field

The invention relates to the technical field of geotechnical engineering, in particular to a prefabricated middle locking type rock mass fracture cutting system with different geometric characteristics.

Background

The engineering rock mass is usually destroyed by joint and bridge, and the spatial positions (such as crack length, crack inclination angle, bridge length and the like) of joints, cracks, faults and the like contained in the engineering rock mass obviously influence the mechanical characteristics of the engineering rock mass under the action of external load, thereby influencing the deformation, strength and stability of the engineering rock mass. A large number of engineering practices at home and abroad show that: the failure instability of the engineering rock mass is usually caused by that the stress redistribution near the excavation face causes the rock mass to start to deform or expand at certain structural planes or weak parts, so that intermittent crack faces in the rock mass continuously creep and expand, and further macroscopic fracture is generated. And the through failure mode, the deformation and the strength characteristics of the rock bridge in the intermittent jointed rock mass are controlled by the scale, the density and the spatial distribution characteristics of the intermittent jointed surface to a great extent, and the inclination angle and the length of the rock bridge directly influence the deformation and failure mechanism of the rock bridge. Therefore, the method has important theoretical significance and practical value for researching the damage mechanism and the strength characteristic of the coplanar interrupted jointed rock mass, particularly the middle locking type rock mass. At present, similar material proportions are mostly adopted for the research of coplanar discontinuous jointed rock, cracks are manufactured by adopting pre-embedded metal sheets or fiber glass sheets, although certain similar criteria, brittleness characteristics and shear-expansion characteristics can be met, the cracks are different from real rocks, and therefore, the tests of prefabricating the cracks on the real rocks have more authenticity and scientificity. For example, CN211250907U is a rock cutting machine capable of cutting horizontally and vertically, the motor drives the screw rod to rotate to cut cracks with different lengths, but the cuts at different angles cannot be realized; although the CN201610804880A can process the shape of a workpiece through digital control, the structure is complex, the debugging is difficult, and the operation is difficult to a certain extent; CN107520892A solves the problem of wire conveying of a diamond wire cutting machine, but the detection of whether the cut rock is horizontal or not during processing cannot be calibrated; although CN207888935U realizes automatic cutting and improves cutting precision, when the saw blade is used for cutting, micro cracks can be generated when the saw blade rotates at high speed and contacts with a rock body, the accuracy of an experimental result is influenced, and the operation difficulty for manufacturing cracks with different angles is large; manual cutting with a diamond wire saw takes too long and the precision is difficult to control.

Disclosure of Invention

The invention aims to provide a prefabricated middle locking type rock mass fracture cutting system with different geometrical characteristics, which aims to solve the main problems in the prior art, can realize the accurate control cutting of the inclination angle and the length of a fracture during the prefabrication of the fracture, simultaneously ensures the integrity of a rock mass, and is simple to operate and easy to operate.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a prefabricated middle locking type rock mass fracture cutting system with different geometric characteristics, which comprises:

a drive chassis; a cutting engine and a gear engine are arranged in the driving machine box;

a slide rail set; the slide rail groups are symmetrically arranged in the middle of the top surface of the drive case, and a U-shaped ruler vertical clamping groove and a drive assembly for driving the U-shaped ruler vertical clamping groove are also slidably arranged in the slide rail groups; the driving assembly is in transmission connection with the gear engine;

a cutting mechanism; the cutting mechanism comprises a carborundum wire saw and a lower disc of a U-shaped angle ruler which is slidably arranged on the sliding rail group; the top surface of the lower disc of the U-shaped angle ruler is provided with a chute, and the top surface of the lower disc of the U-shaped angle ruler is provided with an upper disc of the U-shaped angle ruler in a sliding way through the chute; adjusting components are further mounted at two ends of the upper disc of the U-shaped angle ruler; the adjusting component is fixedly provided with rocks;

the carborundum wire saw is vertically arranged and corresponds to the vertical clamping groove of the U-shaped ruler in position; the wire saw of the carborundum wire saw is limited between the adjusting component and the upper disc of the U-shaped angle ruler; the carborundum wire saw is in transmission connection with the cutting engine through a crank connecting rod assembly.

The lower disc of the U-shaped angle ruler and the upper disc of the U-shaped angle ruler are arranged in the vertical clamping groove of the U-shaped ruler; a mounting ring is formed at the bottom of the lower disc of the U-shaped angle ruler; the slide rail group comprises two slide rails which are symmetrically arranged about the center line of the top surface of the drive case; the top of the sliding rail is provided with a sliding rod; the lower disc of the U-shaped angle ruler is arranged in a sliding mode through a mounting ring sleeved on the sliding rod.

The adjustment assembly comprises a level; the gradienter is arranged on the peripheral surface of the end part of the upper disc of the U-shaped angle ruler; the bottom of the level gauge is also provided with an adjusting knob for leveling the level gauge; one end of a spacing knob is arranged on each of the opposite sides of the two gradienters; the other end of the spacing knob is provided with an installation disc; the mounting disc is also provided with a clamping groove; and two ends of the rock are respectively and fixedly arranged in the clamping grooves.

The crank connecting rod mechanism comprises a connecting rod which is vertically arranged and a crank which is installed at the bottom of the connecting rod in a transmission manner; the top of the connecting rod penetrates through the driving case and is fixedly connected with the bottom of the carborundum wire saw frame body; the bottom of the crank is rotatably connected to the disc.

The cutting engine comprises a cutting engine main body and a first transmission gear and a second transmission gear which are arranged on the cutting engine main body; the first transmission gear is in transmission connection with the second transmission gear through a transmission belt; a connecting shaft jack for mounting a connecting shaft of the main body is further formed in the middle of the cutting engine main body; the disc is fixedly mounted on the main body connecting shaft.

The driving assembly comprises a transmission rack and a transmission gear; the transmission rack is arranged between the two slide rails and is arranged in a sliding manner with the two slide rails; one end of the transmission rack close to the carborundum wire saw is also fixedly connected with the vertical clamping groove of the U-shaped ruler; the top of the transmission rack is also provided with a transmission gear meshed with the transmission rack; the transmission gear is arranged on the gear mounting seat through a gear connecting shaft; the gear mounting seat is arranged on one side far away from the carborundum wire saw.

The gear engine is arranged at the top of the inner cavity of the driving case and is in transmission connection with a transmission rod; the transmission rod vertically penetrates through the top surface of the driving case and is in transmission connection with the gear connecting shaft.

The side wall of the drive case is also provided with a storage case; a controller is arranged in the storage box; the machine body controller is electrically connected with the gear engine and the cutting engine respectively.

The body controller is also electrically connected with a body controller screen and a body controller switch; the screen of the body controller is of a touch screen type structure.

The bottom of the driving case is also provided with four-corner clamping grooves; the cutting motor is limited in the four-corner clamping groove.

The invention discloses the following technical effects: the invention ensures the integrity of the prefabricated middle locking type discontinuous fractured rock mass; the problem that the joint inclination angle and the length are difficult to control accurately is solved through the matching use of the cutting mechanism and the driving assembly; the method can accurately control and cut the inclination angle and the length of the crack when the crack is prefabricated, meanwhile, the integrity of the rock body is guaranteed, and the method is simple to operate and easy to operate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a diagram of the cutting engine of the present invention;

FIG. 4 is a crank slide bar mechanism diagram of the present invention;

FIG. 5 is a view of the gear motor of the present invention;

FIG. 6 is a schematic view of the cutting mechanism of the present invention;

wherein, 1, a clamping groove, 2, a mounting disc, 3, a carborundum wire saw, 4, an upper disc of a U-shaped angle ruler, 5, a slide rail group, 6, a driving case, 7, a disc, 8, a cutting engine, 9, a four-corner clamping groove, 10, a spacing knob, 11, a lower disc of the U-shaped angle ruler, 12, a vertical clamping groove of the U-shaped ruler, 13, a gear wheel controller, 14, a transmission gear, 15, a transmission rack, 16, a machine body controller, 17, a machine screen controller, 18, a machine body controller switch, 19, a storage box, 20, the gear engine, 21, a connecting rod, 22, a crank, 23, a main body connecting shaft of the main body, 24, a gear connecting shaft, 25, a first transmission gear, 26, a connecting shaft jack, 27, a second transmission gear, 28, a transmission belt, 29, a cutting engine main body, a gear mounting seat 30, a main body of the gear engine, a transmission rod, 32, 33, a rotating gear, 34 and a level meter, 35 adjusting knob, 36 sliding rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides a prefabricated middle locking type rock mass fracture cutting system with different geometric characteristics, which comprises:

a drive case 6; a cutting engine 8 and a gear engine 20 are arranged in the driving case 6;

a slide rail set 5; the slide rail group 5 is symmetrically arranged in the middle of the top surface of the driving case 6, and a U-shaped ruler vertical clamping groove 12 and a driving assembly for driving the U-shaped ruler vertical clamping groove 12 are also arranged in the slide rail group 5 in a sliding manner; the driving assembly is in transmission connection with the gear motor 20;

a cutting mechanism; the cutting mechanism comprises a carborundum wire saw 3 and a U-shaped angle ruler lower disc 11 which is slidably arranged on the sliding rail group 5; the top surface of the lower disk 11 of the U-shaped angle ruler is provided with a chute, and the top surface of the lower disk 11 of the U-shaped angle ruler is slidably provided with an upper disk 4 of the U-shaped angle ruler through the chute; adjusting components are further mounted at two ends of the upper disk 4 of the U-shaped angle ruler; the adjusting component is fixedly provided with rocks;

the carborundum wire saw 3 is vertically arranged and corresponds to the vertical clamping groove 12 of the U-shaped ruler in position; the diamond wire saw 3 is limited between the adjusting component and the U-shaped angle ruler upper disc 4; the carborundum wire saw 3 is in transmission connection with the cutting engine 8 through a crank connecting rod assembly.

The lower U-shaped angle ruler disk 11 and the upper U-shaped angle ruler disk 4 are arranged in the vertical clamping groove 12 of the U-shaped ruler; a mounting ring is formed at the bottom of the lower disc 11 of the U-shaped angle ruler; the slide rail group 5 comprises two slide rails which are symmetrically arranged about the center line of the top surface of the drive case 6; the top of the slide rail is provided with a slide rod 36; the lower disc 11 of the U-shaped angle ruler is arranged in a sliding way through a mounting ring sleeved on the sliding rod 36.

The adjustment assembly includes a level 34; the level gauge 34 is arranged on the outer peripheral surface of the end part of the upper plate 4 of the U-shaped angle ruler; the bottom of the level 34 is also provided with an adjusting knob 35 for leveling the level 34; one end of the spacing knob 10 is also mounted on the opposite side of each of the two levels 34; the other end of the spacing knob 10 is provided with a mounting disc 2; the mounting disc 2 is also provided with a clamping groove 1; the two ends of the rock are respectively and fixedly arranged in the clamping grooves 1.

The crank connecting rod mechanism comprises a connecting rod 21 and a crank 22, wherein the connecting rod 21 is vertically arranged, and the crank 22 is installed at the bottom of the connecting rod 21 in a transmission mode; the top of the connecting rod 21 penetrates through the driving case 6 and is fixedly connected with the bottom of the frame body of the carborundum wire saw 3; the bottom of the crank 22 is rotatably connected to the disc 7.

The cutting motor 8 includes a cutting motor main body 29 and a first transmission gear 25 and a second transmission gear 27 mounted on the cutting motor main body 29; the first transmission gear 25 is in transmission connection with the second transmission gear 27 through a transmission belt 28; a connecting shaft insertion hole 26 for mounting the main body connecting shaft 23 is formed in the middle of the cutting engine main body 29; the main body connecting shaft 23 is also fixedly provided with a disc 7.

The driving component comprises a transmission rack 15 and a transmission gear 14; the transmission rack 15 is arranged between the two slide rails and is arranged in a sliding manner with the two slide rails; one end of the transmission rack 15 close to the carborundum wire saw 3 is also fixedly connected with a U-shaped ruler vertical clamping groove 12; the top of the transmission rack 15 is also provided with a transmission gear 14 meshed with the transmission rack 15; the transmission gear 14 is arranged on a gear mounting seat 30 through a gear connecting shaft 24; the gear mounting seat 30 is arranged on one side far away from the carborundum wire saw 3.

The gear motor 20 is arranged at the top of the inner cavity of the driving case 6, and the gear motor 20 is in transmission connection with a transmission rod 32; the transmission rod 32 vertically penetrates through the top surface of the driving case 6 and is in transmission connection with the gear connecting shaft 24.

The side wall of the drive case 6 is also provided with a storage box 19; a body controller 16 is arranged in the storage box 19; the body controller 16 is electrically connected to the gear motor 20 and the cutting motor 8, respectively.

The body controller 16 is also electrically connected with a body controller screen 17 and a body controller switch 18; the body controller screen 17 is of a touch screen type structure.

The bottom of the driving case 6 is also provided with a four-corner clamping groove 9; the cutting motor 8 is defined in a four-corner card slot 9.

In one embodiment of the invention, scales are arranged on the peripheries of the upper disc 4 and the lower disc 11 of the U-shaped angle ruler, and the rock sample is placed in the vertical clamping groove 12 of the U-shaped ruler after being clamped.

In another embodiment of the invention, the saw blade on the diamond wire saw 3 is detachably mounted.

In another embodiment of the present invention, two adjusting knobs 35 are provided at the bottom of each level 34 for adjusting the levelness of the level 34, and are visually determined by the position of the bubble in the level 34.

In another embodiment of the present invention, the lower end of the transmission rack 15 may be further provided with a roller; the rock sample is advanced by the roller.

In another embodiment of the present invention, the gear motor 20 includes a gear motor main body 31 and a rotary gear 33 provided at one side of the gear motor main body 31; the rotating gear 33 is in transmission connection with the gear motor body 31 and is also in rotation connection with the transmission rod 32.

In another embodiment of the present invention, two identical first transmission gears 25 are provided at both outer sides of the cutting motor body 29, and a second transmission gear 27 is provided at the top of the cutting motor body 29; the transmission belt 28 passes through the inside of the cutting motor body 29, is sequentially wound around the two first transmission gears 25, and is pressed by the second transmission gear 27.

In another embodiment of the present invention, a gear controller 13 is further mounted on the gear mounting seat 30; the gear controller 13 is also in transmission connection with a machine body controller 16; the gear controller 13 is used for monitoring whether the actual number of rotating teeth of the transmission gear 14 is consistent with the value input by the machine body controller 16.

The specific implementation mode of the invention is shown as follows: in FIG. 1, the U-shaped angle ruler is moved to the right end of the chute 5 and is arranged on the side of the sliding rod 36 far away from the carborundum wire saw 3; rotating a spacing knob 10 to adjust spacing, then placing a rock sample between two mounting discs 2, fastening clamping grooves 1 at two ends of the rock sample, then rotating an upper disc 4 of a U-shaped angle ruler to determine a rotating angle according to a crack inclination angle to be manufactured, rotating a pointer on the surface of the upper disc 4 of the U-shaped angle ruler to a scale corresponding to a lower disc 11 of the U-shaped angle ruler, and then clamping the angle ruler in a vertical clamping groove 12 of the U-shaped ruler; then level instruments 34 at two ends of the U-shaped angle ruler are adjusted, bubbles in the level instruments are centered by rotating four adjusting knobs 35 at the lower end, the thickness of diamond wire on a diamond wire saw 3 is determined according to the width of a crack to be manufactured, a machine body controller 16 hidden in a storage box 19 at the right side of a machine body shell 6 is rotated out after the adjustment is right, the cutting length is input into a screen 17 of the machine body controller according to a switch 18 of the machine body controller, the machine body controller 16 controls seven engines 8 and a gear engine 20 to start after clicking 'start' in the screen 17 after the input, and the four-corner clamping grooves 9 ensure that the position of the cutting engine 8 is fixed.

In fig. 2, the cutting motor 8 is connected with the main body connecting shaft 23, the main body connecting shaft 23 is connected with the disc 7, the cutting motor body 29 rotates the disc 7 by rotating the main body connecting shaft 23, so that the disc 7 drives the crank 22 to rotate, and then the crank 22 drives the connecting rod 21 to reciprocate up and down, so that the carborundum wire saw 3 at the upper end is also reciprocated up and down.

The gear controller 13 controls the gear motor 20 to rotate the gear connecting shaft 24 to drive the transmission gear 14 to rotate, so that the transmission rack 15 moves forwards through meshing with the transmission gear 14, and the previously input parameter machine controller 16 transmits a command to the gear controller 13 to control the transmission rack 15 to move forwards through controlling the gear motor 20 to control the rotation number of the transmission gear 14 so as to control the front close distance of the transmission rack 15, so that the purpose of controlling the cutting length of the sample is achieved. The body controller 16 controls the body to stop after the specified distance is reached. Thus, a prefabricated crack is obtained, and then the clamping groove 1 is rotated by 180 degrees, and the operations are repeated to obtain the coplanar intermittent joint rock sample.

In fig. 3 the cutting motor is started and the cutting motor first and second drive gears 25 and 29 are driven by the drive belt 28, the motor operating to rotate the body connecting shaft insertion hole 26 and thus the connected end.

Fig. 4 shows a crank-slide mechanism, in which a motor connecting shaft 23 is connected to a motor so as to rotate, and the disc 7 is rotated, whereby a crank 22 connected to the disc 7 is moved, whereby a connecting rod 21 connected to the front end thereof is moved up and down to reciprocate the diamond saw 3 up and down.

Fig. 5 shows a gear motor, the gear motor assembly 31 moves to drive the gear motor rotating gear 33 to rotate, and the transmission rod 32 rotates the gear connecting shaft 24 to drive the transmission gear 14 to rotate.

FIG. 6 is a diagram of a cutting mechanism, firstly, processed rock samples are placed into a clamping groove 1, a knob 10 is rotated to ensure the rock to be clamped, then an upper plate 4 of a U-shaped angle ruler is rotated according to the angle of a prefabricated crack inclination angle, the scribed line of the upper plate 4 of the U-shaped angle ruler is aligned to the scale of a lower plate 11 of the U-shaped angle ruler, then gradienters 34 at two ends of the U-shaped angle ruler are adjusted to enable the rock samples to be kept at the horizontal position, and the bubbles in the gradienters 34 are enabled to be in the horizontal state most in the middle by rotating four adjusting knobs 35 at the lower end. After one end of the rock sample is cut, if a coplanar intermittent joint is required to be manufactured, the clamping groove 1180 degrees can be rotated to repeat the steps.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.