阅读说明：本技术 一种碎石装置、掘进机及控制方法 (Stone crushing device, tunneling machine and control method ) 是由 程永亮 容锦 彭正阳 张帅坤 任锦江 熊晨君 彭帅 于 2020-12-29 设计创作，主要内容包括：本申请公开了一种碎石装置、掘进机及控制方法,碎石装置包括：物料进入通道,用于与排浆管路连接；进料舱,用于存储并筛分进入其内部的物料,并将筛分之后的物料排出；破碎机构,设置有双齿辊结构,通过双齿辊结构的相向转动对进入其内部的物料进行挤压、劈裂和破碎；出料机构,用于收集由物料进入通道或破碎机构进入的物料,并对进入其内部的物料进行清理、排出。由于在破碎的过程中采用双齿辊结构对物料进行破碎,双齿辊结构在破碎过程中的震动小,有利于提高整体碎石装置的稳定性；并且双齿辊结构的设置,可以有效提高破碎效率,有利于使破碎效率满足掘进机的掘进速度要求。(The application discloses rubble device, entry driving machine and control method, rubble device includes: the material inlet channel is used for being connected with the slurry discharge pipeline; the feeding cabin is used for storing and screening the materials entering the feeding cabin and discharging the screened materials; the crushing mechanism is provided with a double-toothed roller structure, and materials entering the crushing mechanism are extruded, split and crushed through opposite rotation of the double-toothed roller structure; and the discharging mechanism is used for collecting the materials entering from the material inlet channel or the crushing mechanism, and cleaning and discharging the materials entering the discharging mechanism. Because the double-toothed roller structure is adopted to crush the materials in the crushing process, the double-toothed roller structure has small vibration in the crushing process, and the stability of the whole stone crushing device is favorably improved; and the double-toothed roller structure can effectively improve the crushing efficiency and is beneficial to ensuring that the crushing efficiency meets the requirement of the tunneling speed of the tunneling machine.)

1. A lithotripsy apparatus, comprising:

the material inlet channel is used for being connected with the slurry discharge pipeline so that the material enters the material inlet channel;

a feeding compartment (6) for storing and screening the material introduced into the interior thereof and discharging the screened material;

the crushing mechanism (7) is connected with a discharge hole of the feeding cabin (6), is provided with a double-toothed roller structure (77), extrudes, splits and crushes the material entering the double-toothed roller structure (77) through opposite rotation of the double-toothed roller structure, and discharges the crushed material to the discharging mechanism;

the discharging mechanism is used for collecting the materials entering from the material inlet channel or the crushing mechanism (7), and cleaning and discharging the materials entering the discharging mechanism.

2. A lithotripter device according to claim 1, characterized in that the material inlet channel is provided with two discharge ports, and one of the discharge ports is provided with a first control switch for controlling the opening and closing of the discharge port and is connected with the feed end of the feed compartment (6); and the other discharge port is provided with a second control switch for controlling the opening and the closing of the discharge port and is connected with the feed end of the discharge mechanism.

3. The stone crushing device according to claim 2, characterized by further comprising a detection mechanism for detecting the torque applied to the double-gear-roller structure (77) and a control mechanism for controlling the rotation direction of the double-gear roller according to the detection result of the detection mechanism.

4. The stone breaking device according to claim 2, characterized in that the material inlet channel is a feeding three-way pipe (1), one end of the feeding three-way pipe (1) is connected with the slurry discharge pipeline, and the other two ends are respectively connected with the feeding cabin (6) and the discharging mechanism.

5. Lithotripsy device according to claim 4, characterized in that the end of the feeding tee (1) connected to the discharge mechanism is provided with a first manual ball valve (51) for externally connecting high pressure water to flush the discharge mechanism.

6. Lithotripter device according to claim 2, characterized in that the feeding hatch (6) is provided with a grid structure (66) for screening and flow-dividing deceleration of the material entering its interior.

7. A rock breaking device according to any one of claims 2-6, characterized in that the double gear roller structure (77) comprises two sets of gear rollers arranged rotatably, a power device for driving the gear rollers to rotate and a breaking cutter (7710) arranged on the gear rollers;

and the common crushing cutter (7710) and the crushing toothed cutter in the same group of toothed rollers are arranged at intervals.

8. Lithotripter device according to claim 7, characterized in that the crushing mechanism (7) further comprises a first access door (72) mounted by means of a swivel pin and a second swing bolt for locking or unlocking the first access door (72);

the door plate of the first access door (72) is provided with a plurality of high-pressure flushing interfaces which are externally connected with high-pressure water to flush the crushing cutter (7710).

9. A lithotripter device according to any one of claims 2-6, characterized in that the discharge mechanism comprises a discharge chamber (8) with a feed end connected to the material inlet channel, a damping throat (12) connected to the discharge end of the discharge chamber (8) via a pipe, a cleaning tank (13) for re-separating the material, and a slurry pump station (14) for providing suction for the flow of material in the discharge mechanism;

the feeding end of the cleaning box (13) is connected with the discharging end of the damping throat (12), and the discharging end of the cleaning box (13) is connected with the feeding end of the slurry pump station (14).

10. Lithotripsy apparatus according to claim 9, characterized in that the discharge hatch (8) is provided with a funnel-like structure for collecting the material.

11. A heading machine comprising a lithotripter device according to any one of claims 1 to 10.

12. A control method applied to the lithotripter device according to any one of claims 2 to 10, comprising:

acquiring an application environment of the stone breaking device;

the corresponding control switch is started according to the application environment, when the application environment is a soft soil stratum, the first control switch is controlled to be closed, and the second control switch is controlled to be opened; and when the application environment is a pebble stratum, controlling the first control switch to be opened and controlling the second control switch to be closed.

13. The control method according to claim 12, wherein the turning on the corresponding control switch according to the application environment comprises:

acquiring the torque borne by the double-gear roller structure (77);

judging whether the torque is larger than or equal to a preset dangerous torque, if so, controlling the double-gear roller structure (77) to reversely rotate within a limited time; if not, the rotation direction of the double-gear roller structure (77) is kept unchanged.

Technical Field

The application relates to the technical field of development machines, and more particularly relates to a stone crushing device. In addition, the application also relates to a heading machine comprising the stone breaking device and a control method applied to the stone breaking device.

Background

With the construction of a large number of tunnels, the development machine becomes an indispensable tool, and the slurry balance shield machine is generally applied to tunnel engineering with high requirements on river crossing, sea crossing and sedimentation due to the excellent pressure control performance of the slurry balance shield machine.

The existing common air cushion type slurry balance shield machine is provided with a jaw crusher in an air cushion cabin, but the crushing frequency of the jaw crusher is generally less than 4 times per minute, the crushing efficiency is low, the productivity is low, the jaw crusher cannot meet the tunneling speed of the slurry shield machine for water-rich sandy gravel stratum, stagnation and discharge are easily generated, the tunneling efficiency of the slurry shield machine is directly limited, and meanwhile, the high-pressure oil pipe and an oil cylinder are easily damaged and difficult to maintain when the jaw crusher is installed in the air cushion cabin.

In summary, how to provide a stone breaking device capable of improving the breaking efficiency is an urgent problem to be solved by those skilled in the art.

Disclosure of Invention

In view of this, the purpose of this application is to provide a rubble device, carries out the breakage to the stone through double-tooth roller structure in the in-process that uses, compares in jaw crusher among the prior art, and double-tooth roller structure is less at the pivoted in-process vibrations, can effectively reduce vibrations to improve rubble efficiency, be favorable to realizing that rubble efficiency satisfies the tunnelling speed of entry driving machine.

Another object of the present application is to provide a heading machine including the above stone breaking device, and a control method applied to the above stone breaking device.

In order to achieve the above purpose, the present application provides the following technical solutions:

a lithotripsy apparatus comprising:

the material inlet channel is used for being connected with the slurry discharge pipeline so that the material enters the material inlet channel;

the feeding cabin is used for storing and screening the materials entering the feeding cabin and discharging the screened materials;

the crushing mechanism is connected with a discharge port of the feeding cabin and is provided with a double-toothed roller structure, materials entering the crushing mechanism are extruded, split and crushed through opposite rotation of the double-toothed roller structure, and the crushed materials are discharged to the discharging mechanism;

and the discharging mechanism is used for collecting the materials entering from the material inlet channel or the crushing mechanism, and cleaning and discharging the materials entering the discharging mechanism.

Preferably, the material inlet channel is provided with two discharge ports, and one of the discharge ports is provided with a first control switch for controlling the discharge port to be opened and closed and is connected with the feeding end of the feeding cabin; and the other discharge port is provided with a second control switch for controlling the opening and the closing of the discharge port and is connected with the feed end of the discharge mechanism.

Preferably, the double-tooth roller structure further comprises a detection mechanism for detecting the torque borne by the double-tooth roller structure and a control mechanism for controlling the rotation direction of the double-tooth roller according to the detection result of the detection mechanism.

Preferably, the material inlet channel is a feeding three-way pipe, one end of the feeding three-way pipe is connected with the slurry discharge pipeline, and the other two ends of the feeding three-way pipe are respectively connected with the feeding cabin and the discharging mechanism.

Preferably, one end of the feeding three-way pipe connected with the discharging mechanism is provided with a first manual ball valve for externally connecting high-pressure water so as to flush the discharging mechanism.

Preferably, the feeding cabin is provided with a grid structure for screening, shunting and decelerating the materials entering the feeding cabin.

Preferably, the double-toothed roller structure comprises two groups of toothed rollers which are arranged in a rotating manner, a power device for driving the toothed rollers to rotate and a crushing cutter arranged on the toothed rollers;

and the common crushing cutter and the crushing toothed cutter in the same group of toothed rollers are arranged at intervals.

Preferably, the crushing mechanism further comprises a first access door mounted by a rotating pin shaft and a second swing bolt for locking or unlocking the first access door;

and a plurality of high-pressure washing interfaces which are used for externally connecting high-pressure water to wash the crushing cutter are arranged on the door plate of the first access door.

Preferably, the discharging mechanism comprises a discharging cabin, a damping throat, a cleaning box and a slurry pump station, wherein the feeding end of the discharging cabin is connected with the material inlet channel, the damping throat is connected with the discharging end of the discharging cabin through a pipeline, the cleaning box is used for separating the materials again, and the slurry pump station is used for providing suction for the flow of the materials in the discharging mechanism;

the feeding end of the cleaning box is connected with the discharging end of the damping throat, and the discharging end of the cleaning box is connected with the feeding end of the slurry pump station.

Preferably, the discharge chamber is provided with a funnel-shaped structure for collecting the material.

A heading machine comprising a rock breaking device as claimed in any preceding claim.

A control method is applied to the stone breaking device, and comprises the following steps:

acquiring an application environment of the stone breaking device;

the corresponding control switch is started according to the application environment, when the application environment is a soft soil stratum, the first control switch is controlled to be closed, and the second control switch is controlled to be opened; and when the application environment is a pebble stratum, controlling the first control switch to be opened and controlling the second control switch to be closed.

Preferably, the turning on the corresponding control switch according to the application environment includes:

acquiring the torque borne by the double-tooth roller structure;

judging whether the torque is larger than or equal to a preset dangerous torque, if so, controlling the double-toothed roller structure to reversely rotate within a limited time; and if not, keeping the rotation direction of the double-tooth roller structure unchanged.

At the in-process that uses the rubble device that this application provided, the material gets into by material access way, gets into crushing mechanism after the short duration storage of feed bin and screening, and double-tooth roller structure among the crushing mechanism rotates in opposite directions and extrudees, splitting and breakage to the material that gets into its inside, and material after the breakage gets into discharge mechanism, is cleared up and discharges by discharge mechanism.

Because the double-toothed roller structure is adopted to crush the materials in the crushing process, compared with a jaw crusher, the double-toothed roller structure has small vibration in the crushing process, and is beneficial to improving the stability of the whole stone crushing device; and the double-toothed roller structure can effectively improve the crushing efficiency and is beneficial to ensuring that the crushing efficiency meets the requirement of the tunneling speed of the tunneling machine. In addition, the double-toothed roller structure can ensure that the material is crushed more uniformly, and is convenient to discharge subsequently.

In addition, the application also provides a heading machine comprising the stone breaking device and a control method applied to the stone breaking device.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a lithotripter device provided herein;

FIG. 2 is a front view of a feed module provided herein;

FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 is a front view of a crushing mechanism provided herein;

FIG. 5 is a schematic structural view of the double-tooth roller structure in FIG. 4;

FIG. 6 is a schematic cross-sectional view of a dual gear roller configuration provided herein;

FIG. 7 is a front view of a discharge chamber provided herein;

FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 7;

FIG. 9 is a front view of the base of FIG. 7;

FIG. 10 is a mud flow diagram of the rock breaking apparatus operating in a pebble bed formation;

fig. 11 is a mud flow diagram of the lithotripter device operating in a soft soil formation.

In FIGS. 1-11:

1 is a feeding three-way pipe, 21 is a first electric ball valve, 22 is a second electric ball valve, 23 is a third electric ball valve, 3 is a first elbow pipe, 4 is a first connecting pipe, 5 is a slurry discharging three-way pipe, 51 is a first manual ball valve, 6 is a feeding cabin, 61 is a feeding cabin shell, 62 is a rotating shaft, 63 is a second access door, 64 is a conversion flange, 65 is a first movable joint bolt, 66 is a grid structure, 67 is a pressure plate, 7 is a crushing mechanism, 71 is a crusher box body, 72 is a first access door, 73 is a plug, 74 is a coupler, 75 is a support, 76 is a first sealing strip, 77 is a double-toothed roller structure, 7701 is a first bearing end cover, 7702 is a bearing seat, 7703 is a first main sealing ring, 7704 is a second main sealing ring, 7705 is a driving shaft, 7706 is a first sealing pressure plate, 7707 is a compression nut, 7708 is a bearing, 7709 is a pressure-bearing, 7710 is a crushing cutter, 7711 is a second sealing pressure plate, 7712 is a second bearing end cover, 7713 is a wear-resistant ring, 78 is a hydraulic motor, 8 is a discharging cabin, 81 is a base, 8101 is a pipeline connecting flange, 8102 is a first straight pipe, 8103 is a mounting plate, 8104 is a rib plate, 8105 is a base bottom plate, 8106 is a support mounting plate, 8107 is a second straight pipe, 8108 is a slag collecting cavity plate, 82 is a backing plate, 83 is a bottom plate, 84 is a second sealing strip, 9 is a second bent pipe, 10 is a second manual ball valve, 11 is a second connecting pipe, 12 is a damping throat, 13 is a cleaning box, and 14 is a slurry pump station.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

The core of this application is that a rubble device is provided, at the in-process that uses, can carry out the breakage to the material through double gear roller structure, improves crushing efficiency to can be according to the difference of stratum kind, whether select to use broken mechanism, prolong broken mechanism's life. The other core of the application is to provide a heading machine comprising the stone breaking device and a control method applied to the stone breaking device.

Please refer to fig. 1-11.

This embodiment discloses a rubble device, includes:

the material inlet channel is used for being connected with the slurry discharge pipeline so that materials (slurry, sand, stone and the like) enter the material inlet channel;

the feeding cabin 6 is used for storing and screening the materials entering the feeding cabin and discharging the screened materials;

the crushing mechanism 7 is connected with the discharge hole of the feeding cabin 6, is provided with a double-gear roller structure 77, extrudes, splits and crushes the materials entering the double-gear roller structure 77 through opposite rotation of the double-gear roller structure 77, and discharges the crushed materials to the discharge mechanism;

the discharging mechanism is used for collecting the materials entering from the material inlet channel or the crushing mechanism 7, and cleaning and discharging the materials entering the discharging mechanism;

the material inlet channel is provided with two discharge ports, one of the discharge ports is provided with a first control switch for controlling the opening and the closing of the discharge port, and the discharge port is connected with the feed end of the feed cabin 6; the other discharge port is provided with a second control switch for controlling the opening and the closing of the discharge port and is connected with the feed end of the discharge mechanism.

It should be noted that the material inlet channel is provided with two discharge ports which are respectively connected with the material inlet chamber 6 and the material outlet chamber 8, so that different control switches are turned on to control the material to flow to different flow channels, when the first control switch is turned on and the second control switch is turned off, the material enters the material inlet chamber 6 after entering the material inlet channel, enters the crushing mechanism 7 through storage and screening of the material inlet chamber 6, and enters the material outlet mechanism after being crushed by the crushing mechanism 7; when the first control switch is turned off and the first control switch is turned on, the material entering the material inlet channel can directly enter the discharging device, so that the process of crushing the material is avoided; of course, the two can be simultaneously started to be applied to a required use scene, and the specific determination is carried out according to actual conditions.

The slurry discharge pipe is a structure in the tunneling machine, and slurry flows into the material inlet channel from the slurry discharge pipe.

Preferably, the material inlet channel can be set as a feeding three-way pipe 1, one end of the feeding three-way pipe 1 is connected with the slurry discharge pipeline, and the other two ends are respectively connected with the feeding cabin 6 and the discharging mechanism.

As shown in fig. 1, the first control switch and the second control switch may be set as electric ball valves, specifically, a first electric ball valve 21 and a second electric ball valve 22, and of course, may also be other knife gate valves, manual ball valves, and other structures. The electric ball valve mentioned in the application can be replaced by a knife gate valve, a manual ball valve and other structures meeting the requirements.

Preferably, a first manual ball valve 51 for externally connecting high-pressure water is arranged at one end of the feeding three-way pipe 1 connected with the discharging mechanism to flush the discharging mechanism; when the discharging cabin 8 needs to be cleaned or blocked, the discharging cabin 8 can be flushed by externally connecting high-pressure water through the first manual ball valve 51, so that the blocking of the discharging cabin 8 is avoided; of course, a slurry inlet pump may also be introduced to flush the discharge chamber 8, which is determined according to actual conditions and is not described herein.

In the in-process of using the rubble device that this embodiment provided, because material access way is provided with two discharge ports, consequently can be through the switching of controlling first control switch and second control switch, whether the selection is to getting the material and carrying out the breakage, under the general condition, when being applied to the soft soil stratum, because there is almost no stone in the mud, need not carry out the breakage, can control first control switch and close, the second switch is opened, in the in-process of using, the material gets into through discharging mechanism by material access way and discharges, need not use crushing mechanism 7, can avoid the frequent use of crushing mechanism 7 to avoid the wearing and tearing to crushing cutter 7710 in the crushing mechanism 7 simultaneously, the life of extension crushing mechanism 7.

When being applied to the cobble stratum, mix in the mud this moment and have boulder etc. can control first control switch and open, and second control switch closes, and at the in-process of using, the material gets into by material access way, gets into crushing mechanism 7 after the short-time storage of feed bin 6 and screening, and double tooth roller structure 77 in crushing mechanism 7 rotates in opposite directions and extrudees, splits and breakage its inside material of getting into, and the material after the breakage gets into discharge mechanism, is cleared up and is discharged by discharge mechanism.

Because the double-toothed roller structure 77 is adopted to crush the materials in the crushing process, compared with a jaw crusher, the double-toothed roller structure 77 has small vibration in the crushing process, and the stability of the whole stone crushing device is improved; and the double-toothed roller structure 77 can effectively improve the crushing efficiency, and is favorable for ensuring that the crushing efficiency meets the tunneling speed requirement of the tunneling machine. In addition, the double-toothed roller structure 77 can ensure that the material is crushed more uniformly, and is convenient to discharge subsequently. The probability of the failure of slag discharge in slurry pipeline transportation in the shield process is reduced, and the working efficiency of the shield machine is effectively improved.

On the basis of the above embodiment, in order to avoid damage to the crushing cutter 7710 or the driving shaft 7705 caused by materials with high hardness or large volume in the crushing process, the crushing device may further include a detection mechanism for detecting the torque applied to the double-tooth roller structure 77 and a control mechanism for controlling the rotation direction of the double-tooth roller according to the detection result of the detection mechanism.

In the using process, the detection mechanism can be a torque sensor and is used for detecting the torque received by the double-tooth roller structure 77 and transmitting the detection result to the control mechanism in real time, the control mechanism can be a PLC (programmable logic controller), after the torque information transmitted by the detection mechanism is received, the received torque information is compared with the preset dangerous torque, when the torque received by the double-tooth roller structure 77 is greater than or equal to the dangerous torque, the double-tooth roller structure 77 is controlled to rotate in the opposite direction for a period of time, wherein the period of time can be one minute or tens of seconds or other periods of time, the detection mechanism is specifically determined according to actual conditions, and after a certain period of time, the double-tooth roller structure 77 is controlled to recover to normally rotate.

The crushing mechanism 7 in the above embodiment has a certain protection mechanism in the using process, which can prevent the double-toothed roller structure 77 from being accidentally damaged due to too large torque, and prolong the service life of the crushing mechanism 7.

As shown in fig. 2, 3 and 10, the feeding chamber 6 is provided with a grid structure 66 for screening, shunting and decelerating the material entering the feeding chamber, and as shown in fig. 10, the grid structure 66 is inclined at an angle to the vertical direction, and the grid structure may be a screen with other shapes and angles, which is determined according to actual conditions.

In the using process, after the materials enter the feeding cabin 6, pebbles in the feeding cabin 6 enter the front end of the crushing mechanism 7 under the barrier of the grids, small pebbles enter the rear end of the crushing mechanism 7 through the grids, and the grids shunt and decelerate the pebbles to prevent the materials from being accumulated.

As shown in fig. 5 and 6, the double-toothed roller structure 77 includes two sets of toothed rollers which are rotatably disposed, a power device for driving the toothed rollers to rotate, and a crushing cutter 7710 disposed on the toothed rollers; and the common crushing cutter 7710 and the crushing serrated knife are arranged at intervals in the same group of serrated rolls.

Preferably, the power device may be a hydraulic motor 78, a combination of an electric motor and a fluid coupling, or other structures meeting the requirements, which are not described in detail herein.

The double-toothed roller arrangement 77 can be applied to cone crushers as well as to twin-roll crushers.

On the basis of the above-described embodiment, the crushing cutter 7710 may be made to include a common crushing cutter 7710 and a crushing toothed cutter, and the common crushing cutter 7710 and the crushing toothed cutter may be provided at intervals in the same toothed roll. The universal crushing cutter 7710 is provided with a convex part which can play a role in stirring materials and assisting crushing.

In another specific embodiment, two driving shafts 7705 are provided, wherein one of the toothed rollers is sequentially provided with a 0-degree crushing toothed cutter, a universal crushing cutter 7710, a 15-degree crushing toothed cutter, a universal crushing cutter 7710, a 30-degree crushing toothed cutter, a universal crushing cutter 7710, a 45-degree crushing toothed cutter, a universal crushing cutter 7710, a 0-degree crushing toothed cutter and a universal cutter from one end far away from the power device to the other end of the crushing cutter 7710 in the length direction;

the other fluted roller is sequentially arranged from one end far away from the power device to the crushing cutter 7710 at the other end in the length direction according to the sequence of the universal crushing cutter 7710, the 0-degree crushing fluted cutter, the universal crushing cutter 7710, the 15-degree crushing fluted cutter, the universal crushing cutter 7710, the 30-degree crushing fluted cutter, the universal crushing cutter 7710, the 45-degree crushing fluted cutter, the universal crushing cutter 7710 and the 0-degree crushing fluted cutter.

The angle of the crushing toothed cutter refers to the installation angle of the crushing toothed cutter, and the installation angle of the 0-degree crushing toothed cutter is the superposition of the connecting line from the central axis to the end part of the cutter tooth and the vertical line in the vertical direction; the angle of the 15-degree crushing serrated knife is 15 degrees, namely the included angle between the connecting line from the central axis to the end part of the serrated knife and the vertical line in the vertical direction; the angle of the 30-degree crushing toothed cutter is an included angle of 30 degrees between a connecting line from the central axis to the end part of the cutter tooth and a vertical line in the vertical direction; the angle of the 45-degree crushing serrated knife is 45 degrees from the line from the central axis to the end part of the serrated knife to the vertical line in the vertical direction. The staggered tooth installation is carried out in the process of installing the crushing toothed cutters, so that the cutter teeth of the crushing toothed cutters are arranged at different angle positions in the circumferential direction, and the materials are crushed continuously.

In the setting mode of the crushing cutter 7710 in this embodiment, the universal crushing cutter 7710 and the crushing serrated knife are staggered, and the serrated knife of the crushing serrated knife is staggered and can be cut off according to the tooth thickness, so that the pipeline is prevented from being blocked by a long-strip-shaped structure.

In the in-process of in-service use, there are four cutters at most in the broken stone at the same time in broken process, and generally only two cutters are in the broken stone simultaneously, and laborsaving during the broken stone, if adopt other arrangement, have many cutters to work simultaneously at the in-process of broken stone, required crushing force is big and the crushing force change is big, consequently the setting mode of broken cutter 7710 in this embodiment can make the vibrations at any time in-process reduce, is favorable to making the device more stable.

In another particular embodiment, the crushing mechanism 7 further comprises a first access door 72 mounted by means of a swivel pin and a second swing bolt for locking or unlocking the first access door 72;

the door plate of the access door is provided with a plurality of high-pressure flushing ports for externally connecting high-pressure water to flush the crushing cutter 7710.

Impurities are adhered to the surface of the crushing cutter 7710, or the crushing cutter 7710 can be washed by externally connecting high-pressure water in the use environment of a viscous stratum, so that the adaptability of the crushing device to the viscous stratum is improved.

The discharging mechanism comprises a discharging cabin 8 with a feeding end connected with the material inlet channel, a damping throat 12 connected with the discharging end of the discharging cabin 8 through a pipeline, a cleaning box 13 for separating the materials again and a slurry pump station 14 for providing suction for the flow of the materials in the discharging mechanism; the feed end of the cleaning box 13 is connected with the discharge end of the damping throat 12, and the discharge end of the cleaning box 13 is connected with the feed end of the slurry pump station 14.

The discharging cabin 8 is provided with a funnel-shaped structure for collecting materials; the setting of funnel-shaped structure, at the in-process that uses, the inclined plane whereabouts of edge lateral wall after the material gets into can strengthen the ability of slagging tap and prevent that the dregs from blockking up. Of course, other shapes with inclined side walls can be provided, which is determined according to actual conditions.

In another embodiment, as shown in fig. 1, one end of a feeding three-way pipe 1 is connected with a slurry discharge pipeline at the shield end of the heading machine through bolts, the other two ends of the feeding three-way pipe are connected with electric ball valves through bolts, a first electric ball valve 21 is connected with a first elbow 3, the other end of the first elbow 3 is connected with a first connecting pipe 4, and the first connecting pipe 4 is connected with a feeding cabin 6; the second electric ball valve 22 is connected with the discharging cabin 8 through a slurry discharging three-way pipe 5; the second manual ball valve 10 is fixed on the feeding cabin 6 through a bolt, and the crushing mechanism 7 is decompressed through an external pressure relief pipe during shutdown maintenance; the first manual ball valve 51 is fixed on the slurry discharge three-way pipe 5 through bolts, and the discharge cabin 8 is washed by externally connecting high-pressure water when the discharge cabin 8 is plugged; the feeding cabin 6 is connected with the crushing mechanism 7 through screws; the crushing mechanism 7 is fixed on the discharging cabin 8 through bolts, and the discharging cabin 8 is usually welded on a supporting trolley behind the heading machine; one end of the second elbow 9 is connected with a connecting flange on the discharging cabin 8 through a bolt, and the other end is connected with the third electric ball valve 23; one end of the second connecting pipe 11 is connected with the third electric ball valve 23 through a bolt, and the other end is connected with the damping throat 12; one end of the cleaning box 13 is connected with the damping throat 12 through a bolt, and the other end is connected with the slurry pump station 14.

Specifically, as can be seen from fig. 2 and 3, the feeding compartment 6 is a storage compartment mounted above the crushing mechanism 7, and plays a role of storing and screening, and includes a feeding compartment housing 61, a rotating shaft 62, a second access door 63, a conversion flange 64, a first swing bolt 65, a grid, and four pressing plates 67. The feed tank housing 61 is provided with a flange connecting the first connecting pipe 4 and the transfer flange 64. The second access door 63 is mounted on the feeding compartment housing 61 through a pivot pin and is locked by an eye bolt, facilitating quick access to the rock breaking device. Preferably, the plane of connection between the second access door 63 and the feed bin housing 61 is fitted with a planar gasket.

As shown in fig. 4-6, the crushing mechanism 7 is connected with the feeding cabin 6 and the discharging cabin 8 through bolts to perform secondary crushing on large stones, mud cakes and impurities. The crushing mechanism 7 comprises a crusher box 71, two first access doors 72, six plugs 73, two couplers 74, two supports 75, a first sealing strip 76, a double-tooth roller structure 77 and two hydraulic motors 78.

The crusher box 71 is fixed on the discharging cabin 8 through bolts; the hydraulic motor 78 is mounted on the support 75 by bolts and connected with the coupling 74; the support 75 is mounted on the discharging cabin 8 through bolts; the coupler 74 is respectively connected with the output shaft of the hydraulic motor 78 and the double-gear roller structure 77; the double-toothed roller structure 77 is fixed on the crusher box 71 through bolts; the first access door 72 is fixed on the crusher box body 71 through bolts, so that the crusher is convenient to maintain; high-pressure washing ports are uniformly distributed on the first access door 72, and the first access door can be externally connected with high-pressure water to wash the crushing cutter 7710; the first sealing strip 76 is mounted on the crusher box 71 to ensure that the feed bin 6 can bear the pressure of slurry after being connected with the crushing mechanism 7.

The double-tooth roller structure 77 comprises a first bearing end cover 7701, two bearing seats 7702, two first main seal rings 7703, two second main seal rings 7704, a driving shaft 7705, two first seal pressing plates 7706, two gland nuts 7707, two bearings 7708, two groups of pressure-bearing seals 7709, ten crushing cutters 7710, two second seal pressing plates 7711, a second bearing end cover 7712 and two wear-resistant rings 7713. The crushing cutter 7710 is mounted on the driving shaft 7705 to perform secondary crushing on large stones, mud lumps and the like; the driving shaft 7705 is installed inside the crushing cabin box body through a bearing seat 7702 and is connected with the hydraulic motor 78 through a coupler 74; the bearing seat 7702 is mounted on the first primary seal ring 7703 by bolting; the first primary seal ring 7703 is mounted on the crusher box 71 by bolting; the second primary seal ring 7704 is mounted on the crusher box 71 by bolting; the first bearing end cover 7701 and the second bearing end cover 7712 are mounted on the bearing seat 7702 through bolts to position the bearing 7708; the wear-resistant ring 7713 is mounted on the driving shaft 7705, and the main functions of the wear-resistant ring 7713 and the pressure-bearing seal 7709 are to prolong the service life of the driving shaft 7705; the pressure-bearing seal 7709 is arranged among the first main seal ring 7703, the second main seal ring 7704 and the wear-resistant ring 7713, and is compressed by the first seal pressing plate 7706 and the second seal pressing plate 7711 to prevent high-pressure mud and sand from entering the bearing 7708; the first sealing pressure plate 7706 and the second sealing pressure plate 7711 are fixed to the first main sealing ring 7703 and the main second sealing ring respectively through bolts, and position and compress the pressure-bearing seal 7709.

As shown in fig. 7-9, the discharging cabin 8 includes a base 81, two backing plates 82, two bottom plates 83, and a second sealing strip 84, the discharging cabin 8 is mainly used for collecting crushed muck and slurry, and is connected with the crushing mechanism 7 through bolts, the bottom plates 83 are welded on a supporting trolley behind the heading machine, and support the crushing mechanism 7 and provide a crushing reaction force; the base 81 comprises two pipeline connecting flanges 8101, a first straight pipe 8102, a mounting plate 8103, a rib plate 8104, a second straight pipe 8107, a base bottom plate 8105, a support mounting plate 8106 and a slag collecting cavity plate 8108; the closing-in shape of the slag collection cavity plate 8108 can influence the slag discharging effect, and all parts are connected into a whole through welding. The backing plate 82 is installed between the base 81 and the bottom plate 83 to play a role in shock absorption, and the second sealing strip 84 is installed on the base 81 to ensure that the discharging cabin 8 can bear mud pressure after being connected with the crushing mechanism 7.

Plane pads are arranged between the feeding cabin shell 61 and the crusher box body 71 and between the crusher box body 71 and the discharging cabin 8.

As shown in fig. 10, when the application environment is a pebble stratum, muck and pebbles excavated by the cutter head are sucked into the first feeding three-way pipe 1 under the carrying of slurry, at this time, the first electric ball valve 21 is opened, the second electric ball valve 22 is closed, the muck, the pebbles and the slurry enter the first elbow pipe 3 through the first electric ball valve 21, enter the feeding cabin 6 through the first connecting pipe 4, the large pebbles in the feeding cabin 6 enter the front end of the crushing mechanism 7 at the barrier of the grid, the small pebbles enter the rear end of the crushing mechanism 7 through the grid, and the grid shunts and decelerates the pebbles to prevent the material from being accumulated. The hydraulic pump station drives the hydraulic motor 78, and the hydraulic motor 78 drives the driving shaft 7705 through the coupler 74 to drive the plurality of crushing tools 7710 to piece together, split, break and crush large stones. The double-toothed roller structures 77 rotate in opposite directions to clamp the materials (pebbles, mud lumps and sundries) for crushing. When the torque borne by the double-gear roller structure 77 exceeds or equals to dangerous torque, the double-gear roller structure 77 automatically reverses to escape under the control of the control mechanism, and then reverses again to continue crushing after limited time. The crushed materials (pebbles, mud lumps, sundries and slurry) enter the discharging cabin 8, the discharging cabin 8 collects the materials (pebbles, mud lumps, sundries and slurry) by adopting double inclined planes, the materials (pebbles, mud lumps, sundries and slurry) can flow conveniently, and then the suction force of the slurry pump station 14 enters the slurry pump station 14 through the second elbow pipe 9, the second connecting pipe 11, the damping throat 12 and the cleaning box 13 to be discharged. The damping throat 12 damps the vibrations of the mud pump station 14. The cleaning box 13 can separate metal objects or large stones again to protect the mud pump station 14 from working smoothly.

As shown in fig. 11, when the application environment is a soft soil layer, the muck and pebble excavated by the cutter head are carried in the slurry and sucked into the feeding three-way pipe 1, at this time, the first electric ball valve 21 is closed, the second electric ball valve 22 is opened, the muck, pebble and slurry enter the slurry discharging three-way pipe 5 through the second electric ball valve 22 and then enter the discharging cabin 8, and then the suction force of the slurry pump station 14 enters the slurry pump station 14 through the second elbow pipe 9, the second connecting pipe 11, the damping throat 12 and the cleaning tank 13 and is discharged. In this case, a soft soil section is used, a cobble-free section is used, energy can be saved, the service life of the crushing device can be prolonged, and meanwhile, the discharging cabin 8 can be flushed by mud to prevent accumulation of dregs in the discharging cabin 8.

In addition to the above lithotripsy device, the present application also provides a heading machine including the lithotripsy device disclosed in the above embodiments, and the structure of other parts of the heading machine refers to the prior art, which is not described herein again.

In addition to the above-described stone breaking device, the present application also provides a control method of a heading machine applied to the stone breaking device disclosed in the above-described embodiment, the control method including:

step S1, acquiring the application environment of the stone breaking device;

in the actual use process, corresponding options can be set on the panel, and the user can input the actual application environment through the option keys.

Step S2, the corresponding control switch is turned on according to the application environment, when the application environment is a soft soil stratum, the first control switch is controlled to be turned off, and the second control switch is controlled to be turned on; and when the application environment is a pebble stratum, controlling the first control switch to be opened and controlling the second control switch to be closed.

The control mechanism may be a PLC system, or may be another structure meeting the requirements, which is not described herein.

In the implementation process of the method in the embodiment, the materials can be selected without being crushed according to the application environment of the stone crushing device, abrasion caused by long-term use of the crushing mechanism 7 is avoided, and the service life of the crushing mechanism 7 is prolonged.

The step S2 includes:

step S21, acquiring a torque applied to the double-toothed roller structure 77;

step S22, determining whether the torque is greater than or equal to a preset dangerous torque, and if so, controlling the double-gear roller structure 77 to rotate reversely within a limited time; if not, the rotation direction of the double-toothed roller structure 77 is maintained.

The limited time is a preset time, and may be one minute, several tens of seconds, or other time, which is determined according to actual conditions.

It should be noted that, in the present specification, the first electric ball valve 21, the second electric ball valve 22, the third electric ball valve 23, the first elbow 3, the second elbow 9, the first connecting pipe 4, the second connecting pipe 11, the first manual ball valve 51, the second manual ball valve 10, the first access door 72, the second access door 63, the first swing bolt 65, the second swing bolt, the first sealing strip 76, the second sealing strip 84, the first main sealing ring 7703, the second main sealing ring 7704, the first sealing plate 7706, the second sealing plate 7711, and the first, the second, and the third of the first bearing end cover 7701, the second bearing end cover 7712 are only for limiting the difference of the positions, and are not sequentially mentioned.

In the control method in the embodiment, the double-toothed roller structure 77 has a certain self-protection function in the use process, so that the surface crushing cutter 7710 can be effectively damaged in the use process, and the service life of the crushing mechanism 7 is prolonged; meanwhile, the phenomenon that the whole device stops working due to overlarge torque can be avoided, and the stone crushing efficiency is further improved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Any combination of all embodiments provided by the present application is within the scope of the present invention, and is not described herein.

The stone breaking device, the heading machine and the control method provided by the application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.