Automatic dismounting of drill rod assembly for mine tunnel drilling machine

Abstract

The present application relates to the technical field of mining drill pipe, and particularly relates to a drill pipe structure capable of automatic disassembly, in particular to a drill pipe assembly capable of automatic disassembly of a mining drift drill, which comprises a vertically arranged bidirectional telescopic mechanism, an upper clamping locking mechanism and a lower clamping locking mechanism are symmetrically arranged at the output ends of the upper part and the lower part of the bidirectional telescopic mechanism respectively, the upper clamping locking mechanism is used in cooperation with the lower clamping locking mechanism, the lower clamping locking mechanism is used for clamping and rotating the drill pipe which needs to be disassembled at present, the upper clamping locking mechanism is used for clamping and fixing the drill pipe adjacent to the upper part of the drill pipe to be disassembled when the lower clamping locking mechanism works, and the bidirectional telescopic mechanism, the upper clamping locking mechanism and the lower clamping locking mechanism are connected with the drill through wires and are powered by the drill.

Description

Technical Field

[0001] This invention relates to the field of mining drill pipe technology, and particularly to a drill pipe structure capable of automatic disassembly, especially an automatic disassembly drill pipe assembly for mining tunnel drilling rigs. Background Technology

[0002] A drilling rig is a mechanical device used in the exploration or development of mineral resources (including solid minerals, liquid minerals, gaseous minerals, etc.) to drive drilling tools into the ground and obtain physical geological data. The drill rod component, as the core drilling and extraction system of the drilling rig, is installed at the bottom of the drilling rig's turntable during normal operation.

[0003] Since drill pipe is a crucial tool in drilling operations, the stability and reliability of its connection methods are essential for the safety and efficiency of drilling operations. Threaded connections, lockable connections, and hook connections are common drill pipe connection methods. Among these, threaded connections and lockable connections are currently the most widely used.

[0004] When drilling rigs are used in underground coal mines, they are usually used to complete drilling and exploration work. When the drilling is completed and the drill rod needs to be disassembled, the current locked drill rods are mainly removed by manually knocking them off. This operation is relatively laborious and requires frequent manual vibration and knocking to loosen the connection of the drill rod and thus achieve disassembly.

[0005] In addition, a patent document with patent publication number CN201363110Y is also disclosed in the prior art. Its patent name is a drill pipe disassembly device. The main structure includes a first vise that is engaged with the first drill pipe and a second vise that is engaged with the second drill pipe. The device is characterized in that a manual hoist is provided between the first vise and the second vise. The fixed end of the manual hoist is connected to the first vise or the second vise, and the load chain of the manual hoist is connected to the second vise or the first vise.

[0006] As can be seen from the above structure, the existing disassembly structure mainly uses two clamps that respectively engage the upper drill rod and the drill rod to be disassembled to clamp the drill rod and rotate it to achieve the purpose of controlling the thread engagement of the drill rod for disassembly.

[0007] However, while this disassembly method can save some effort, it can only disassemble drill rods with threaded engagement structures and cannot disassemble drill rods in a locked or jammed state. In addition, manual hoisting is still required during disassembly, which is quite laborious and has low disassembly efficiency.

[0008] Therefore, this invention optimizes and improves the existing problems in drill pipe disassembly, and proposes a drill pipe structure that can achieve automatic disassembly, so as to better solve the problems existing in the prior art. Summary of the Invention

[0009] To solve one of the aforementioned technical problems, the present invention employs the following technical solution: an automatic drill rod disassembly assembly for a mining tunnel drilling rig, comprising a vertically arranged bidirectional telescopic mechanism. An upper clamping and locking mechanism and a lower clamping and locking mechanism are symmetrically installed at the upper and lower output ends of the bidirectional telescopic mechanism, respectively. The upper clamping and locking mechanism works in conjunction with the lower clamping and locking mechanism. The lower clamping and locking mechanism is used to clamp and rotate the drill rod to be disassembled. The upper clamping and locking mechanism is used to clamp and fix the adjacent upper part of the drill rod to be disassembled when the lower clamping and locking mechanism is in operation. The bidirectional telescopic mechanism, the upper clamping and locking mechanism, and the lower clamping and locking mechanism are all connected to the drilling rig via electrical wires and powered by the drilling rig.

[0010] In any of the above embodiments, it is preferred that the bidirectional telescopic mechanism includes a vertically arranged bidirectional electric cylinder, the upper output end of which is fixedly connected to the bottom of the upper clamping and locking mechanism, and the lower output end of which is fixedly connected to the top of the lower clamping and locking mechanism.

[0011] In any of the above embodiments, it is preferred that the piston rods at each end of the bidirectional electric cylinder are both double-rod piston rod structures.

[0012] In any of the above embodiments, it is preferred that the upper clamping and locking mechanism includes an upper torque motor fixedly installed at the output end of the upper double piston rod of the bidirectional electric cylinder, the upper torque motor is vertically arranged, and an upper clamping and disassembling device is installed on the top of the motor shaft of the upper torque motor.

[0013] In any of the above embodiments, preferably, the upper clamping and disassembling device includes a horizontally arranged upper gearbox. The bottom right side of the upper gearbox is fixed to the motor housing of the upper torque motor by an upper rigid column. The upper end of the motor shaft of the upper torque motor extends movably into the upper cavity of the upper gearbox and is fixedly connected to a horizontally arranged upper pinion. An upper large gear ring meshes with the left side of the upper pinion. An upper mounting sleeve is integrally formed in the central cavity of the upper large gear ring. The upper and lower ends of the upper mounting sleeve movably pass through the through holes at the top and bottom of the upper gearbox, respectively. An upper clamping device that moves synchronously in opposite directions is symmetrically installed in the mounting cavity of the upper mounting sleeve.

[0014] In any of the above embodiments, it is preferred that the upper clamping device includes an upper micro electric cylinder that is horizontally arranged and whose outer end is fixed to the inner wall of the mounting cavity of the upper mounting sleeve. An upper V-shaped clamping block is fixed to the inner end of the piston rod of the upper micro electric cylinder. The two upper micro electric cylinders are in a state of synchronous movement towards each other or synchronous movement away from each other when working.

[0015] In any of the above embodiments, it is preferred that the lower clamping and locking mechanism includes a lower torque motor fixedly installed at the output end of the lower double piston rod of the bidirectional electric cylinder, the lower torque motor is vertically arranged, and a lower clamping and disassembling device is installed at the bottom of the motor shaft of the lower torque motor.

[0016] In any of the above embodiments, preferably, the lower clamping and disassembling device includes a horizontally arranged lower gearbox. The bottom right side of the lower gearbox is fixed to the motor housing of the lower torque motor by a lower rigid column. The lower end of the motor shaft of the lower torque motor extends movably into the lower cavity of the lower gearbox and is fixedly connected to a horizontally arranged lower pinion. A lower large gear ring meshes with the left side of the lower pinion. A lower mounting sleeve is integrally formed in the central cavity of the lower large gear ring. The upper and lower ends of the lower mounting sleeve movably pass through the through holes at the top and bottom of the lower gearbox, respectively. A lower clamping device that moves synchronously in opposite directions is symmetrically installed in the mounting cavity of the lower mounting sleeve.

[0017] In any of the above embodiments, it is preferred that the lower clamping device includes a lower miniature electric cylinder that is horizontally arranged and whose outer end is fixed to the inner wall of the mounting cavity of the lower mounting sleeve. A lower V-shaped clamping block is fixed to the inner end of the piston rod of the lower miniature electric cylinder. The two lower miniature electric cylinders are in a state of synchronously moving towards each other or synchronously moving away from each other when working.

[0018] In any of the above embodiments, it is preferred that a serrated structure is provided on the inner wall of the upper V-shaped clamping cavity of the upper V-shaped clamping block and on the inner wall of the lower V-shaped clamping cavity of the lower V-shaped clamping block.

[0019] In any of the above embodiments, it is preferred that the top and bottom of the upper large gear ring abut against the top and bottom inner walls of the upper cavity, respectively, and the top and bottom of the lower large gear ring abut against the top and bottom inner walls of the lower cavity, respectively.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. When installing this invention, it is installed on the upper outer side wall of the topmost drill rod and is in a fixed state of clamping the drill rod. It is connected to the electrical control system of the existing drilling rig through a reserved wire of sufficient length, thereby ensuring that this component does not affect the normal drilling work when the entire drilling rig is working.

[0022] 2. When drilling is completed and drill rods (excluding those directly adjacent to the drilling rig) are removed one by one as needed, the upper and lower clamping and locking mechanisms of this component are released. At this time, the entire component can freely descend along the height of the drill rod to the part of the drill rod to be disassembled. During the descent, manual assistance is provided to support it. After reaching the position, the upper clamping and locking mechanism clamps the outer wall of the drill rod adjacent to the part to be disassembled to ensure the positioning of the entire component. The lower clamping and locking mechanism can be moved down and rotated to disassemble the locking type of drill rod. The upper clamping and locking mechanism can be rotated while the downward movement speed is controlled to disassemble the threaded locking type of drill rod.

[0023] 3. The combined use of the upper and lower clamps can better ensure the clamping and anti-loosening of the drill pipe, ensuring quickness when disassembling the drill pipe and greatly reducing the cumbersome steps and time-consuming and labor-intensive problems caused by traditional hammering disassembly. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0027] Figure 3 This is a partial cross-sectional view of the present invention.

[0028] Figure 4 This is a top view of the two upper clamps of the present invention in the working state.

[0029] Figure 5 This is a top view of the two lower clamps of the present invention in the working state.

[0030] In the diagram: 1. Bidirectional telescopic mechanism; 2. Upper clamping and locking mechanism; 3. Lower clamping and locking mechanism; 4. Drill rod; 5. Bidirectional electric cylinder; 6. Upper torque motor; 7. Upper gearbox; 8. Upper rigid column; 9. Upper cavity; 10. Upper pinion; 11. Upper large gear ring; 12. Upper mounting sleeve; 13. Upper miniature electric cylinder; 14. Upper V-shaped clamping block; 15. Lower torque motor; 16. Lower gearbox; 17. Lower rigid column; 18. Lower cavity; 19. Lower pinion; 20. Lower large gear ring; 21. Lower mounting sleeve; 22. Lower miniature electric cylinder; 23. Lower V-shaped clamping block; 24. Serrated structure. Detailed Implementation

[0031] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore merely examples and should not be used to limit the scope of protection of the present invention. The specific structure of the present invention is as follows: Figure 1-5 As shown in the image.

[0032] Example 1: An automatic drill rod disassembly assembly for a mining tunnel drilling rig includes a vertically arranged bidirectional telescopic mechanism 1. An upper clamping and locking mechanism 2 and a lower clamping and locking mechanism 3 are symmetrically installed at the upper and lower output ends of the bidirectional telescopic mechanism 1, respectively. The upper clamping and locking mechanism 2 and the lower clamping and locking mechanism 3 work together. The lower clamping and locking mechanism 3 is used to clamp and rotate the drill rod 4 that needs to be disassembled. The upper clamping and locking mechanism 2 is used to clamp and fix the adjacent upper part of the drill rod 4 to be disassembled when the lower clamping and locking mechanism 3 is working. The bidirectional telescopic mechanism 1, the upper clamping and locking mechanism 2, and the lower clamping and locking mechanism 3 are all connected to the drilling rig via wires and powered by the drilling rig. During installation, the automatic drill rod disassembly assembly for the mining tunnel drilling rig is directly installed on the outer wall of the uppermost drill rod 4. When fixation is required, the upper clamping and locking mechanism 2 and the lower clamping and locking mechanism 3 are used to grip the outer wall of the current drill rod 4. After the drilling rig finishes drilling, the upper clamping and locking mechanism 2 and the lower clamping and locking mechanism 3 are released. At the same time, manual assistance can be used to control the entire component to move downwards. When it moves to the upper part of the drill rod 4 that needs to be disassembled, the upper clamping and locking mechanism 2 and the lower clamping and locking mechanism 3 can be controlled to rotate or pull the lower drill rod 4 downwards to achieve the purpose of quick disassembly.

[0033] In any of the above embodiments, preferably, the bidirectional telescopic mechanism 1 includes a vertically arranged bidirectional electric cylinder 5. The upper output end of the bidirectional electric cylinder 5 is fixedly connected to the bottom of the upper clamping and locking mechanism 2, and the lower output end of the bidirectional electric cylinder 5 is fixedly connected to the top of the lower clamping and locking mechanism 3. The bidirectional telescopic mechanism 1 can extend and retract as needed when one of the upper clamping and locking mechanism 2 or the lower clamping and locking mechanism 3 is in a working state and the other is in an idle state, thereby driving the idle component to extend and retract into place along the height direction.

[0034] In any of the above-mentioned solutions, it is preferred that the piston rods at each end of the bidirectional electric cylinder 5 are all double-rod piston rod structures. The double-rod structure can effectively ensure the stability of the overall motor housing of the upper torque motor 6 or the lower torque motor 15 when it is not working, and prevent it from rotating randomly.

[0035] In any of the above embodiments, preferably, the upper clamping and locking mechanism 2 includes an upper torque motor 6 fixedly mounted on the output end of the upper double piston rod of the bidirectional electric cylinder 5. The upper torque motor 6 is vertically arranged, and an upper clamping dismantling device is mounted on the top of the motor shaft of the upper torque motor 6. The upper torque motor 6 serves as a driving component when the drill rod 4 needs to be rotated, and plays a role in fixing and stabilizing when it is not working. By controlling the clamping of the drill rod 4 by the upper clamping dismantling device, the positioning of the upper clamping dismantling device can be ensured, while the fixed positioning of the upper torque motor 6 can also be ensured.

[0036] In any of the above embodiments, preferably, the upper clamping and disassembling device includes a horizontally arranged upper gearbox 7. The bottom right side of the upper gearbox 7 is fixed to the motor housing of the upper torque motor 6 by an upper rigid column 8. The upper end of the motor shaft of the upper torque motor 6 extends movably into the upper cavity 9 of the upper gearbox 7 and is fixedly connected to a horizontally arranged upper pinion 10. An upper large gear ring 11 meshes with the left side of the upper pinion 10. An upper mounting sleeve 12 is integrally formed in the central cavity of the upper large gear ring 11. The upper and lower ends of the upper mounting sleeve 12 movably pass through the through holes at the top and bottom of the upper gearbox 7, respectively. An upper clamping device that moves synchronously in opposite directions is symmetrically installed in the mounting cavity of the upper mounting sleeve 12. When the upper clamping and disassembling device is clamping, it mainly relies on the positioning and locking of the upper torque motor 6 to lock the upper small gear 10, thereby achieving the purpose of locking the upper large gear ring 11 and the upper mounting sleeve 12, and finally achieving the positioning of the two upper clamps to ensure the stability when the upper clamps cooperate to clamp the drill rod 4.

[0037] In any of the above embodiments, preferably, the upper clamping device includes an upper micro electric cylinder 13 that is horizontally arranged and whose outer end is fixed to the inner wall of the mounting cavity of the upper mounting sleeve 12. An upper V-shaped clamping block 14 is fixedly connected to the inner end of the piston rod of the upper micro electric cylinder 13. The two upper micro electric cylinders 13 are in a state of synchronous movement towards each other or synchronous movement away from each other during operation. When the upper clamping device is working, the cylinder body of its upper micro electric cylinder 13 is in a relatively fixed state. Controlling the extension of the dual-axis piston rod of the upper micro electric cylinder 13 will drive the upper V-shaped clamping block 14 at its end to press against the outer wall of the drill rod 4. When both upper V-shaped clamping blocks 14 on both sides have clamped and secured the drill rod 4, it can achieve the purpose of quickly and effectively securing the drill rod 4. Therefore, when the upper V-shaped clamping block 14 in the clamped state rotates, it will drive the drill rod 4 to rotate, thereby achieving the purpose of rotating and disassembling the drill rod 4.

[0038] In any of the above embodiments, preferably, the lower clamping and locking mechanism 3 includes a lower torque motor 15 fixedly installed at the output end of the lower double piston rod of the bidirectional electric cylinder 5. The lower torque motor 15 is vertically arranged, and a lower clamping dismantling device is installed at the bottom of the motor shaft of the lower torque motor 15. The lower torque motor 15 serves as a driving component when the drill rod 4 needs to be rotated, and plays a role in fixing and stabilizing when it is not working. By controlling the clamping of the drill rod 4 by the lower clamping dismantling device, the positioning of the lower clamping dismantling device can be ensured, while the fixed positioning of the lower torque motor 15 can be guaranteed.

[0039] In any of the above embodiments, it is preferred that the lower clamping and disassembling device includes a horizontally arranged lower gearbox 16. The bottom right side of the lower gearbox 16 is fixed to the motor housing of the lower torque motor 15 by a lower rigid column 17. The lower end of the motor shaft of the lower torque motor 15 extends movably into the lower cavity 18 of the lower gearbox 16 and is fixedly connected to a horizontally arranged lower pinion 19. A lower large gear ring 20 meshes with the left side of the lower pinion 19. A lower mounting sleeve 21 is integrally formed in the central cavity of the lower large gear ring 20. The upper and lower ends of the lower mounting sleeve 21 movably pass through the through holes at the top and bottom of the lower gearbox 16, respectively. A lower clamping device that moves synchronously in opposite directions is symmetrically installed in the mounting cavity of the lower mounting sleeve 21. When the lower clamping and disassembling device is clamping, it mainly relies on the positioning and locking of the lower torque motor 15 to lock the lower pinion 19, thereby achieving the purpose of locking the lower large gear ring 20 and the lower mounting sleeve 21, and finally achieving the positioning of the two lower clamps to ensure the stability when the lower clamps cooperate to clamp the drill rod 4.

[0040] In any of the above embodiments, preferably, the lower clamp includes a lower miniature electric cylinder 22 that is horizontally arranged and whose outer end is fixed to the inner wall of the mounting cavity of the lower mounting sleeve 21. A lower V-shaped clamping block 23 is fixedly connected to the inner end of the piston rod of the lower miniature electric cylinder 22. The two lower miniature electric cylinders 22 are in a state of synchronous movement towards each other or synchronous movement away from each other during operation. When the lower clamp is working, the cylinder body of its lower miniature electric cylinder 22 is in a relatively fixed state. Controlling the extension of the dual-axis piston rod of the lower miniature electric cylinder 22 will drive the lower V-shaped clamping block 23 at its end to press against the outer wall of the drill rod 4. When both lower V-shaped clamping blocks 23 on both sides have clamped and secured the drill rod 4, it can achieve the purpose of quickly and effectively securing the drill rod 4. Therefore, when the lower V-shaped clamping block 23 in the clamped state rotates, it will drive the drill rod 4 to rotate, thereby achieving the purpose of rotating and disassembling the drill rod 4.

[0041] Example 2: An automatic drill rod disassembly assembly for a mining tunnel drilling rig includes a vertically arranged bidirectional telescopic mechanism 1. An upper clamping and locking mechanism 2 and a lower clamping and locking mechanism 3 are symmetrically installed at the upper and lower output ends of the bidirectional telescopic mechanism 1, respectively. The upper clamping and locking mechanism 2 and the lower clamping and locking mechanism 3 work together. The lower clamping and locking mechanism 3 is used to clamp and rotate the drill rod 4 that needs to be disassembled. The upper clamping and locking mechanism 2 is used to clamp and fix the adjacent upper part of the drill rod 4 to be disassembled when the lower clamping and locking mechanism 3 is working. The bidirectional telescopic mechanism 1, the upper clamping and locking mechanism 2, and the lower clamping and locking mechanism 3 are all connected to the drilling rig via electrical wires and powered by the drilling rig.

[0042] In any of the above embodiments, it is preferred that the bidirectional telescopic mechanism 1 includes a vertically arranged bidirectional electric cylinder 5, the upper output end of the bidirectional electric cylinder 5 is fixedly connected to the bottom of the upper clamping and locking mechanism 2, and the lower output end of the bidirectional electric cylinder 5 is fixedly connected to the top of the lower clamping and locking mechanism 3.

[0043] The bidirectional telescopic mechanism 1 can extend or retract as needed when one of the upper clamping and locking mechanisms 2 or the lower clamping and locking mechanism 3 is in a working state and the other is in an idle state, thereby driving the idle component to extend or retract into place along the height direction.

[0044] In any of the above-mentioned solutions, it is preferred that the piston rods at each end of the bidirectional electric cylinder 5 are all double-rod piston rod structures. The double-rod structure can effectively ensure the stability of the overall motor housing of the upper torque motor 6 or the lower torque motor 15 when it is not working, and prevent it from rotating randomly.

[0045] In any of the above embodiments, it is preferred that the upper clamping and locking mechanism 2 includes an upper torque motor 6 fixedly installed at the output end of the upper double piston rod of the bidirectional electric cylinder 5. The upper torque motor 6 is vertically arranged, and an upper clamping and disassembling device is installed on the top of the motor shaft of the upper torque motor 6.

[0046] The upper torque motor 6 serves as the driving component when the drill rod 4 needs to be rotated. When it is not working, it plays a role in fixing and stabilizing. By controlling the upper clamping and disassembling device to clamp the drill rod 4, the positioning of the upper clamping and disassembling device can be ensured, and the fixed positioning of the upper torque motor 6 can also be ensured.

[0047] In any of the above embodiments, preferably, the upper clamping and disassembling device includes a horizontally arranged upper gearbox 7. The bottom right side of the upper gearbox 7 is fixed to the motor housing of the upper torque motor 6 by an upper rigid column 8. The upper end of the motor shaft of the upper torque motor 6 extends movably into the upper cavity 9 of the upper gearbox 7 and is fixedly connected to a horizontally arranged upper pinion 10. An upper large gear ring 11 meshes with the left side of the upper pinion 10. An upper mounting sleeve 12 is integrally formed in the central cavity of the upper large gear ring 11. The upper and lower ends of the upper mounting sleeve 12 movably pass through the through holes at the top and bottom of the upper gearbox 7, respectively. An upper clamping device that moves synchronously in opposite directions is symmetrically installed in the mounting cavity of the upper mounting sleeve 12.

[0048] When the upper clamping and disassembling device is clamping, it mainly relies on the positioning and locking of the upper torque motor 6 to lock the upper small gear 10, thereby achieving the purpose of locking the upper large gear ring 11 and the upper mounting sleeve 12, and finally achieving the positioning of the two upper clamps to ensure the stability when the upper clamps cooperate to clamp the drill rod 4.

[0049] In any of the above embodiments, it is preferred that the upper clamping device includes an upper micro electric cylinder 13 that is horizontally arranged and whose outer end is fixed to the inner wall of the mounting cavity of the upper mounting sleeve 12. An upper V-shaped clamping block 14 is fixedly connected to the inner end of the piston rod of the upper micro electric cylinder 13. The two upper micro electric cylinders 13 are in a state of synchronously moving towards each other or synchronously moving away from each other when working.

[0050] When the upper clamp is working, the cylinder body of the upper micro electric cylinder 13 is in a relatively fixed state. Controlling the extension of the dual-axis piston rod of the upper micro electric cylinder 13 will drive the upper V-shaped clamping block 14 at its end to press against the outer wall of the drill rod 4. When both sides of the upper V-shaped clamping block 14 clamp the drill rod 4 tightly, it can achieve the purpose of quickly and effectively tightening the drill rod 4. Therefore, when the upper V-shaped clamping block 14 in the clamping state rotates, it will drive the drill rod 4 to rotate, thereby achieving the purpose of rotating and disassembling the drill rod 4.

[0051] In any of the above embodiments, it is preferred that the lower clamping and locking mechanism 3 includes a lower torque motor 15 fixedly installed at the output end of the lower double piston rod of the bidirectional electric cylinder 5. The lower torque motor 15 is vertically arranged, and a lower clamping and disassembling device is installed at the bottom of the motor shaft of the lower torque motor 15.

[0052] The lower torque motor 15 serves as the driving component when the drill rod 4 needs to be rotated. When it is not working, it plays a role in fixing and stabilizing. By controlling the lower clamping and disassembling device to clamp the drill rod 4, the positioning of the lower clamping and disassembling device can be ensured, and the fixed positioning of the lower torque motor 15 can also be ensured.

[0053] In any of the above embodiments, it is preferred that the lower clamping and disassembling device includes a horizontally arranged lower gearbox 16. The bottom right side of the lower gearbox 16 is fixed to the motor housing of the lower torque motor 15 by a lower rigid column 17. The lower end of the motor shaft of the lower torque motor 15 extends movably into the lower cavity 18 of the lower gearbox 16 and is fixedly connected to a horizontally arranged lower pinion 19. A lower large gear ring 20 meshes with the left side of the lower pinion 19. A lower mounting sleeve 21 is integrally formed in the central cavity of the lower large gear ring 20. The upper and lower ends of the lower mounting sleeve 21 movably pass through the through holes at the top and bottom of the lower gearbox 16, respectively. A lower clamping device that moves synchronously in opposite directions is symmetrically installed in the mounting cavity of the lower mounting sleeve 21.

[0054] When the lower clamping and disassembling device is clamping, it mainly relies on the positioning and locking of the lower torque motor 15 to lock the lower pinion 19, thereby achieving the purpose of locking the lower large gear ring 20 and the lower mounting sleeve 21, and finally achieving the positioning of the two lower clamps to ensure the stability when the lower clamps cooperate to clamp the drill rod 4.

[0055] In any of the above embodiments, it is preferred that the lower clamping device includes a lower miniature electric cylinder 22 that is horizontally arranged and whose outer end is fixed to the inner wall of the mounting cavity of the lower mounting sleeve 21. A lower V-shaped clamping block 23 is fixedly connected to the inner end of the piston rod of the lower miniature electric cylinder 22. The two lower miniature electric cylinders 22 are in a state of synchronously moving towards each other or synchronously moving away from each other when working.

[0056] When the lower clamp is working, the cylinder body of the lower micro electric cylinder 22 is in a relatively fixed state. Controlling the extension of the dual-axis piston rod of the lower micro electric cylinder 22 will drive the lower V-shaped clamping block 23 at its end to press against the outer wall of the drill rod 4. When both sides of the lower V-shaped clamping block 23 clamp the drill rod 4 tightly, it can achieve the purpose of quickly and effectively tightening the drill rod 4. Therefore, when the lower V-shaped clamping block 23 in the clamping state rotates, it will drive the drill rod 4 to rotate, thereby achieving the purpose of rotating and disassembling the drill rod 4.

[0057] In any of the above embodiments, it is preferred that a serrated structure 24 is provided on the inner wall of the upper V-shaped clamping cavity of the upper V-shaped clamping block 14 and on the inner wall of the lower V-shaped clamping cavity of the lower V-shaped clamping block 23.

[0058] The serrated structure 24 is designed to ensure that the upper V-shaped clamping block 14 and the lower V-shaped clamping block 23 maintain the clamping friction force when clamping the drill rod 4, thereby reducing the probability of slippage when the drill rod 4 is rotated later.

[0059] In any of the above embodiments, it is preferred that the top and bottom of the upper large gear ring 11 abut against the top and bottom inner walls of the upper cavity 9, respectively, and the top and bottom of the lower large gear ring 20 abut against the top and bottom inner walls of the lower cavity 18, respectively.

[0060] Both the upper large gear ring 11 and the lower large gear ring 20 are in a limited position, thus ensuring vertical stability during rotation.

[0061] Specific working principle:

[0062] The automatic disassembly drill rod assembly of the mining tunnel drilling rig is installed directly on the outer wall of the uppermost drill rod 4 during installation. When it needs to be fixed, the upper clamping locking mechanism 2 and the lower clamping locking mechanism 3 are used to hold the outer wall of the current drill rod 4.

[0063] After the drilling rig finishes drilling, the upper clamping and locking mechanism 2 and the lower clamping and locking mechanism 3 are released. At the same time, manual assistance can be used to control the entire component to move downwards.

[0064] When moving to the upper part of the drill rod 4 that needs to be disassembled, the upper clamping and locking mechanism 2 and the lower clamping and locking mechanism 3 can be controlled to rotate or pull down the lower drill rod 4 to achieve quick disassembly. The bidirectional telescopic mechanism 1 can extend or retract as needed when one of the upper clamping and locking mechanism 2 or the lower clamping and locking mechanism 3 is in the working state and the other is in the idle state, thereby driving the idle part to extend or retract into place along the height direction.

[0065] During installation, the component is mounted on the upper outer wall of the topmost drill rod 4 and is fixed in a clamped state. It is connected to the existing drilling rig's electrical control system via a pre-installed, sufficiently long electrical cable, ensuring that this component does not interfere with normal drilling operations while the entire drilling rig is running. When drilling is completed and drill rods 4 (excluding those directly adjacent to the drilling rig) are removed sequentially as needed, the upper clamping and locking mechanism 2 and the lower clamping and locking mechanism 3 of this component are released. At this point, the entire component can freely descend along the height of the drill rod 4 to the location of the drill rod 4 to be removed. During the descent, manual assistance is used to support the component. Once in position, the component is controlled to... The upper clamping and locking mechanism 2 clamps the outer wall of the upper part of the drill rod 4 adjacent to the drill rod 4 to be disassembled, ensuring the positioning of the entire assembly; controlling the lower clamping and locking mechanism 3 to move down and rotate can disassemble the locking type drill rod 4, and controlling the rotation of the upper clamping and locking mechanism 2 while controlling the downward movement speed can disassemble the threaded locking type drill rod 4; the cooperation of the upper clamp and the lower clamp can better ensure the clamping and anti-loosening of the drill rod 4, ensuring the speed of disassembling the drill rod 4, and greatly reducing the cumbersome steps and time-consuming and laborious problems caused by traditional hammering disassembly.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. For those skilled in the art, any alternative improvements or transformations made to the implementation of the present invention fall within the protection scope of the present invention.

[0067] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. An automatic drill rod disassembly assembly for a mining tunnel drilling rig, characterized in that: The device includes a vertically arranged bidirectional telescopic mechanism. An upper clamping and locking mechanism and a lower clamping and locking mechanism are symmetrically installed at the upper and lower output ends of the bidirectional telescopic mechanism, respectively. The upper clamping and locking mechanism works in conjunction with the lower clamping and locking mechanism. The lower clamping and locking mechanism is used to clamp and rotate the drill rod that needs to be disassembled. The upper clamping and locking mechanism is used to clamp and fix the drill rod adjacent to the upper part of the drill rod to be disassembled when the lower clamping and locking mechanism is working. The bidirectional telescopic mechanism, the upper clamping and locking mechanism, and the lower clamping and locking mechanism are all connected to the drilling rig via electrical wires and powered by the drilling rig. The bidirectional telescopic mechanism includes a vertically arranged bidirectional electric cylinder; The upper clamping and locking mechanism includes an upper torque motor fixedly installed at the output end of the upper double piston rod of the bidirectional electric cylinder. The upper torque motor is vertically arranged, and an upper clamping disassembly device is installed on the top of the motor shaft of the upper torque motor. The upper clamping disassembly device includes a horizontally arranged upper gearbox. The bottom right side of the upper gearbox is fixed to the motor housing of the upper torque motor by an upper rigid column. The upper end of the motor shaft of the upper torque motor extends movably into the upper cavity of the upper gearbox and is fixedly connected to a horizontally arranged upper pinion. An upper large gear ring meshes with the left side of the upper pinion. An upper mounting sleeve is integrally formed in the central cavity of the upper large gear ring. The upper and lower ends of the upper mounting sleeve movably pass through the through holes at the top and bottom of the upper gearbox, respectively. An upper clamping device that moves synchronously in opposite directions is symmetrically installed in the mounting cavity of the upper mounting sleeve. The lower clamping and locking mechanism includes a lower torque motor fixedly installed at the output end of the lower double piston rod of the bidirectional electric cylinder. The lower torque motor is vertically arranged, and a lower clamping disassembly device is installed at the bottom of the motor shaft of the lower torque motor. The lower clamping disassembly device includes a horizontally arranged lower gearbox. The bottom right side of the lower gearbox is fixed to the motor housing of the lower torque motor by a lower rigid column. The lower end of the motor shaft of the lower torque motor extends movably into the lower cavity of the lower gearbox and is fixedly connected to a horizontally arranged lower pinion. A lower large gear ring meshes with the left side of the lower pinion. A lower mounting sleeve is integrally formed in the central cavity of the lower large gear ring. The upper and lower ends of the lower mounting sleeve movably pass through the through holes at the top and bottom of the lower gearbox, respectively. A lower clamping device that moves synchronously in opposite directions is symmetrically installed in the mounting cavity of the lower mounting sleeve.

2. The automatic drill rod disassembly assembly for a mining tunnel drilling rig according to claim 1, characterized in that: The upper output end of the bidirectional electric cylinder is fixedly connected to the bottom of the upper clamping and locking mechanism, and the lower output end of the bidirectional electric cylinder is fixedly connected to the top of the lower clamping and locking mechanism.

3. The automatic drill rod disassembly assembly for a mining tunnel drilling rig according to claim 2, characterized in that: The piston rods at each end of the bidirectional electric cylinder are all double-rod piston rod structures.

4. The automatic drill rod disassembly assembly for a mining tunnel drilling rig according to claim 3, characterized in that: The top and bottom of the upper large gear ring abut against the top and bottom inner walls of the upper cavity, respectively, and the top and bottom of the lower large gear ring abut against the top and bottom inner walls of the lower cavity, respectively.

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