Pin pulling equipment for dismounting underground pin shaft

Abstract

The utility model belongs to the technical field of mining equipment, and particularly relates to pin drawing equipment for dismounting an underground pin shaft, which comprises a support plate, a tensioning pump is arranged at the top of the supporting plate; a first through hole is formed in the supporting plate; the tensioning pump is connected with an anchor cable, and the bottom of the anchor cable penetrates through the first through hole. A KM18 type lock is arranged on the anchor cable; the KM18 type lock is rotationally connected with a fixing ring; the bottom of the fixing ring is fixedly connected with a first threaded rod. A supporting assembly is arranged at the bottom of the tensioning pump. The supporting assembly is used for supporting the tensioning pump so as to solve the problems that when the pin shaft is taken out, a lead screw and a pull hammer are generally used for taking out the pin shaft, but specific construction is tedious, the labor intensity is large, the construction progress is slow, and in the advancing process of a stope face, the direct connection pin shaft is prone to deformation and difficult to disassemble due to frequent pressing of a top plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining equipment, in particular to a pin-pulling device for disassembling an underground pin shaft. Background Art

[0002] A downhole pin is a connector used in downhole operations. It is mainly used to connect downhole tools, drill pipes, casing and other equipment. The structure of a downhole pin usually includes a pin body, a threaded part, a connecting part, etc. Depending on the use environment and operation requirements, the material and size of the downhole pin will also be different. In downhole operations, the role of the downhole pin is crucial. It can ensure the stability and safety of downhole tools and equipment, and improve the efficiency and success rate of downhole operations.

[0003] In the prior art, a lead screw and a pull hammer are generally used to remove the pin shaft, but the specific construction is cumbersome, labor-intensive, and slow. During the advancement of the mining face, the direct connection pin shaft is easily deformed and difficult to disassemble due to frequent pressure from the roof.

[0004] To this end, the utility model provides a pin-pulling device for disassembling an underground pin shaft. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, in order to solve the problem that a screw and a pull hammer are generally used to remove the pin shaft, but the specific construction is cumbersome, the labor intensity is high, and the construction progress is slow. During the advancement of the mining face, it is easy to cause the direct connection pin shaft to deform and become difficult to disassemble due to frequent pressure from the roof.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a pin extraction device for underground pin shaft disassembly, comprising a support plate; a tensioning pump is provided on the top of the support plate; a first through hole is opened on the support plate; an anchor cable is connected to the tensioning pump, and the bottom of the anchor cable passes through the first through hole; a KM18 type lock is provided on the anchor cable; a fixing ring is rotatably connected to the KM18 type lock; a first threaded rod is fixedly connected to the bottom of the fixing ring; a support assembly is provided at the bottom of the tensioning pump; the support assembly is used to support the tensioning pump.

[0007] Preferably, the support assembly includes a snap unit and a fixing ring; a group of second threaded rods are fixedly connected to the top of the fixing ring; the support plate is slidingly connected to a group of second threaded rods through a group of sliding holes; a group of second threaded rods are all threadedly connected with second nuts; the snap unit is used to fix the tensioning pump.

[0008] Preferably, a pair of first fixed blocks are fixedly connected to the outer circular wall at the bottom of the tensioning pump; the pair of fixed blocks are each provided with a first sliding groove; the bottom of the pair of first sliding grooves are each fixedly connected to a limiting block through a spring; a pair of second fixed blocks are fixedly connected to the top of the support plate; the opposite side walls of the pair of second fixed blocks are each provided with a second sliding groove; the bottom of the pair of second sliding grooves are each provided with a second through hole; a sliding rod is slidably connected in the second through hole; an extrusion block is fixedly connected to one end of the sliding rod, and the extrusion block is slidably connected in the second sliding groove.

[0009] Preferably, a pair of guide rods are fixedly connected to the support plate; a pair of guide blocks are fixedly connected to the tensioning pump; guide holes are provided on each of the pair of guide blocks; and the guide rods are slidably connected in the guide holes.

[0010] Preferably, a first nut is threadedly connected to the first threaded rod.

[0011] Preferably, a group of mounting holes are provided on the fixing ring.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses a pin extraction device for removing an underground pin shaft, which supports a tensioning pump through a supporting assembly, and drives the anchor cable to be raised and lowered through the tensioning pump; a fixing ring is fixedly connected to a KM18 type lock arranged on the anchor cable, and a first threaded rod is fixedly connected to the bottom, so that the first threaded rod can be lowered to connect with the latch, and the latch can be driven to rise together with the tensioning pump to complete the disassembly, and the KM18 type lock in the prior art can be used for disassembly, so that the pin can be removed from the anchor cable together with the fixing ring, thereby solving the problem in the prior art that a lead screw and a pull hammer are generally used to remove the pin shaft when removing the pin shaft, but the specific construction is cumbersome, the labor intensity is high, the construction progress is slow, and the problem that the direct connection pin shaft is easily deformed and difficult to disassemble due to frequent pressure from the top plate during the advancement of the mining face.

[0014] 2. The utility model describes a pin-pulling device for disassembling an underground pin shaft. The limiting block can be extended into the second sliding groove for snapping when descending, thereby completing the fixation of the tensioning pump. The sliding rod is slidably connected in the second through hole, and a squeezing block is fixedly connected. After the work is completed, the squeezing block can be squeezed by squeezing the sliding rod, so that the limiting block can be moved out of the second sliding groove, thereby releasing the restriction and disassembling the tensioning pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is a schematic diagram of the first through hole in the utility model;

[0019] Figure 4 It is a schematic diagram of the explosion of the KM18 type lock in the utility model;

[0020] Figure 5 This is a cross-sectional view of the first fixing block of the utility model;

[0021] In the figure: 1. support plate; 2. tensioning pump; 3. first through hole; 4. anchor cable; 5. KM18 type lock; 6. fixing ring; 7. first threaded rod; 8. second threaded rod; 9. second nut; 10. first fixing block; 11. first sliding groove; 12. limiting block; 13. second fixing block; 14. second sliding groove; 15. second through hole; 16. sliding rod; 17. extrusion block; 18. guide rod; 19. guide block; 20. guide hole; 21. first nut; 22. mounting hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 5As shown, a pin-pulling device for removing a downhole pin shaft described in an embodiment of the utility model comprises a support plate 1; a tensioning pump 2 is provided on the top of the support plate 1; a first through hole 3 is opened on the support plate 1; an anchor cable 4 is connected to the tensioning pump 2, and the bottom of the anchor cable 4 passes through the first through hole 3; a KM18 type lock 5 is provided on the anchor cable 4; a fixing ring 6 is rotatably connected to the KM18 type lock 5; a first threaded rod 7 is fixedly connected to the bottom of the fixing ring 6; a support assembly is provided at the bottom of the tensioning pump 2; the support assembly is used to support the tensioning pump 2, and when working, the tensioning pump 2 is supported by the support assembly, and the anchor cable 4 is driven to rise and fall by the tensioning pump 2 arranged; a fixing ring 6 is fixedly connected to the KM18 type lock 5 arranged on the anchor cable 4 Ring 6, and a first threaded rod 7 is fixedly connected to the bottom, so that the fixing ring 6 can be rotated after the first threaded rod 7 is lowered to connect it with the pin shaft, so that the tensioning pump 2 drives the pin to rise together to complete the disassembly, and it can be disassembled through the KM18 type lock 5 in the prior art, so that it can be removed from the anchor cable 4 together with the fixing ring 6, thereby solving the problem in the prior art that a lead screw and a pull hammer are generally used to remove the pin shaft when removing the pin shaft, but the specific construction is cumbersome, the labor intensity is high, the construction progress is slow, and the direct connection pin shaft is easily deformed and difficult to disassemble due to frequent pressure from the top plate during the advancement of the mining working face. The KM18 type lock 5 has a rotation function, and the pin shaft connection part is a threaded groove that is compatible with the first threaded rod 7.

[0024] The support assembly includes a snap unit and a fixing ring 6; a group of second threaded rods 8 are fixedly connected to the top of the fixing ring 6; the support plate 1 is slidably connected to a group of second threaded rods 8 through a group of sliding holes; a group of second threaded rods 8 are all threadedly connected with second nuts 9; the snap unit is used to fix the tensioning pump 2. When working, a group of second threaded rods 8 are threadedly connected with a group of second nuts 9, and the support plate 1 is slidably connected to the group of second threaded rods 8, so that the height of the second nuts 9 can be adjusted, thereby allowing the height of the support plate 1 to be adjusted, allowing the staff to adjust the height of the tensioning pump 2, so that the staff can adjust the tensioning pump 2 to a suitable working height.

[0025] A pair of first fixed blocks 10 are fixedly connected to the outer circular wall at the bottom of the tension pump 2; a pair of the fixed blocks are each provided with a first sliding groove 11; a pair of limiting blocks 12 are fixedly connected to the bottom of the first sliding grooves 11 through springs; a pair of second fixed blocks 13 are fixedly connected to the top of the support plate 1; a pair of second fixed blocks 13 are each provided with a second sliding groove 14 on the opposite side walls; a pair of second sliding grooves 14 are each provided with a second through hole 15 at the bottom; a sliding rod 16 is slidably connected in the second through hole 15; one end of the sliding rod 16 is fixedly connected to the There is an extrusion block 17, and the extrusion block 17 is slidably connected in the second sliding groove 14. During operation, the limiting block 12 can be extended into the second sliding groove 14 for snapping when descending, thereby completing the fixation of the tensioning pump 2, and the sliding rod 16 is slidably connected in the second through hole 15, and the extrusion block 17 is fixedly connected. After the work is completed, the extrusion block 17 can be squeezed by squeezing the sliding rod 16, so that the limiting block 12 can be moved out of the second sliding groove 14, thereby releasing the restriction and disassembling the tensioning pump 2.

[0026] A pair of guide rods 18 are fixedly connected to the support plate 1; a pair of guide blocks 19 are fixedly connected to the tensioning pump 2; a pair of guide blocks 19 are each provided with a guide hole 20; the guide rods 18 are slidably connected in the guide holes 20. When working, the pair of guide rods 18 can accurately guide the tensioning pump 2 and restrict the tensioning pump 2 to prevent it from shaking and making it inconvenient to pull out the pin shaft, thereby making the tensioning pump 2 more secure when working.

[0027] The first threaded rod 7 is threadedly connected with a first nut 21. During operation, the first nut 21 set on the first threaded rod 7 can be used to fix the pin shaft by rotating the fixing ring 6. After the fixation is completed, the first nut 21 can be used to add a layer of restriction to the pin shaft, thereby preventing the first threaded rod 7 from rotating during the rising process and causing the pin shaft to slip.

[0028] The fixing ring 6 is provided with a group of mounting holes 22 . When working, the fixing ring 6 can be fixed in the operating position through the group of mounting holes 22 , so that the tension pump 2 can be supported more firmly.

[0029] Working principle: The tension pump 2 is supported by the supporting assembly, and the anchor cable 4 is driven to be lifted and lowered by the tension pump 2; a fixing ring 6 is fixedly connected to the KM18 type lock 5 arranged on the anchor cable 4, and a first threaded rod 7 is fixedly connected to the bottom, so that the fixing ring 6 can be rotated after the first threaded rod 7 is lowered to connect it with the pin shaft, so that the tension pump 2 drives the pin to rise together to complete the disassembly, and the KM18 type lock 5 in the prior art can be disassembled, so that it can be removed from the anchor cable 4 together with the fixing ring 6, thereby solving the problem of taking out in the prior art. When the pin is working, a lead screw and a pulling hammer are generally used to remove the pin, but the specific construction is cumbersome, the labor intensity is high, and the construction progress is slow. During the advancement of the mining face, it is easy to cause the direct connection pin to deform and become difficult to disassemble due to frequent pressure from the top plate. A group of second threaded rods 8 are threadedly connected with a group of second nuts 9, and the support plate 1 is slidably connected to the group of second threaded rods 8, so that the height of the second nuts 9 can be adjusted, thereby allowing the height of the support plate 1 to be adjusted, allowing the staff to adjust the height of the tensioning pump 2, thereby allowing the staff to adjust the tensioning The pump 2 is adjusted to a suitable working height, and the limiting block 12 can be inserted into the second sliding groove 14 for buckling when descending, so that the tension pump 2 can be fixed, and the sliding rod 16 is slidably connected in the second through hole 15, and the extrusion block 17 is fixedly connected. After the work is completed, the extrusion block 17 can be driven by squeezing the sliding rod 16 to squeeze the extrusion block 17, so that the limiting block 12 can be moved out of the second sliding groove 14, so that the restriction can be released and the tension pump 2 can be disassembled. The pair of guide rods 18 can accurately guide the tension pump 2 and can The pump 2 is restricted to prevent it from shaking and making it inconvenient to pull out the pin shaft, so that the tensioning pump 2 can be more secure during operation. By setting the first nut 21 on the first threaded rod 7, the staff can fix the pin shaft by rotating the fixing ring 6. After the fixation is completed, the pin shaft can be restricted by rotating the first nut 21, so as to prevent the first threaded rod 7 from rotating during the rising process and causing the pin shaft to slip. By opening a group of mounting holes 22, the fixing ring 6 can be fixed in the operating position, so that the tensioning pump 2 can be supported more securely.

[0030] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pin extraction device for underground pin shaft removal, characterized in that: The invention comprises a support plate (1); a tension pump (2) is provided on the top of the support plate (1); a first through hole (3) is opened on the support plate (1); an anchor cable (4) is connected to the tension pump (2), and the bottom of the anchor cable (4) passes through the first through hole (3); a KM18 type lock (5) is provided on the anchor cable (4); a fixing ring (6) is rotatably connected to the KM18 type lock (5); a first threaded rod (7) is fixedly connected to the bottom of the fixing ring (6); a support assembly is provided at the bottom of the tension pump (2); and the support assembly is used to support the tension pump (2).

2. The pin removal device for underground pin shaft disassembly according to claim 1, characterized in that: The support assembly comprises a buckle unit and a fixing ring (6); a group of second threaded rods (8) are fixedly connected to the top of the fixing ring (6); the support plate (1) is slidably connected to the group of second threaded rods (8) through a group of sliding holes; a group of second threaded rods (8) are all threadedly connected to a second nut (9); the buckle unit is used to fix the tension pump (2).

3. The pin removal device for underground pin shaft disassembly according to claim 2, characterized in that: A pair of first fixed blocks (10) are fixedly connected to the outer circular wall at the bottom of the tension pump (2); the pair of fixed blocks are each provided with a first sliding groove (11); the bottom of the pair of first sliding grooves (11) are each fixedly connected to a limiting block (12) via a spring; a pair of second fixed blocks (13) are fixedly connected to the top of the support plate (1); the pair of second fixed blocks (13) are each provided with a second sliding groove (14) on opposite side walls; the pair of second sliding grooves (14) are each provided with a second through hole (15) at the bottom; a sliding rod (16) is slidably connected in the second through hole (15); an extrusion block (17) is fixedly connected to one end of the sliding rod (16), and the extrusion block (17) is slidably connected in the second sliding groove (14).

4. The pin removal device for underground pin shaft disassembly according to claim 3, characterized in that: A pair of guide rods (18) are fixedly connected to the support plate (1); a pair of guide blocks (19) are fixedly connected to the tension pump (2); guide holes (20) are provided on each of the pair of guide blocks (19); and the guide rods (18) are slidably connected in the guide holes (20).

5. The pin extraction device for underground pin shaft removal according to claim 4, characterized in that: A first nut (21) is threadedly connected to the first threaded rod (7).

6. The pin-pulling device for removing a downhole pin shaft according to claim 5, characterized in that: The fixing ring (6) is provided with a group of mounting holes (22).

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