Maintenance and disassembly device for mining hydraulic support top pickaxe

Abstract

The utility model relates to the technical field of hydraulic cylinder maintenance and disassembly, and discloses a mining hydraulic support top pickaxe maintenance and disassembly device which comprises a base, a disassembly mechanism used for disassembling a top pickaxe is arranged on the top of the base, a fixing plate is arranged on the top of the base, and a second positioning pin is fixedly connected to the top of the fixing plate. The top of the base is provided with a mounting mechanism used for mounting the fixing plate, and the top of the base is provided with a fixing mechanism used for fixing the top pickaxe. When the hydraulic cylinder top pickaxe dismounting device is used, a user can dismount the top pickaxe end cover through a special wrench, then the top pickaxe can be dismounted through the dismounting mechanism and the fixing mechanism, meanwhile, the user can replace the damaged fixing plate through the mounting mechanism, hydraulic cylinders of different sizes can be fixed while the top pickaxe can be dismounted conveniently, and the hydraulic cylinder top pickaxe dismounting device is convenient to use. And in addition, the fixing plate can be disassembled and assembled, so that a user can conveniently replace the damaged fixing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder maintenance and disassembly, in particular to a mining hydraulic support top pick maintenance and disassembly device. Background Art

[0002] With the expansion of high-yield and high-efficiency production scale of underground coal mines, comprehensive mechanized coal mining technology has been applied in recent years. Due to the high production intensity, the fully mechanized hydraulic support needs regular maintenance and repair. The top pick is one of the important components of the fully mechanized hydraulic support. It is mainly composed of a column core, an end cover, and a column seat. Axle pin holes are set at both ends for connection. Due to the harsh underground environment, the top pick sometimes leaks and is damaged. In order to save costs and reduce consumption, and to repair the old and waste, the mine needs to transport the damaged top pick to the ground for repair.

[0003] The Chinese utility model patent with application number: CN202320891941.3 discloses a mining hydraulic support top pick maintenance and disassembly device, including: a reinforcement connector, a slide, a slider, a hydraulic cylinder, a reinforcement plate, a fixing pin, and a traction pin. The two slides are arranged in parallel at intervals and the two ends are connected and fixed by a reinforcement connector. A hydraulic cylinder is fixedly arranged in the right inner part between the two slides. The piston head of the hydraulic cylinder faces the left side, and a slider is fixedly arranged at the end of the piston head. The slider is located in the middle of the slide. A traction pin is fixedly arranged in the middle of the upper part of the slider. A reinforcement plate is fixedly arranged on the upper right side of the two slides. The reinforcement plate covers the hydraulic cylinder body, and a fixing pin is fixedly arranged in the middle of the upper part of the reinforcement plate. It is easy to operate, easy to disassemble, and saves time and effort.

[0004] However, when the above technical solution is in use, since the size of the side guard column is fixed, it cannot fix the hydraulic cylinders of different sizes, thus affecting the scope of application of the device. In addition, since the reinforcement plate is welded to the slide, it is inconvenient for the user to replace it when the reinforcement plate is damaged, resulting in limited practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a mining hydraulic support top pick maintenance and disassembly device to solve the problem in the prior art that when the above-mentioned technical solution is used, the size of the side guard column is fixed, which makes it impossible to fix and position hydraulic cylinders of different sizes, thereby affecting the application scope of the device, and because the reinforcement plate is welded on the slide, it is inconvenient for the user to replace it when the reinforcement plate is damaged, resulting in limited practicality.

[0006] The utility model provides the following technical solutions: a mining hydraulic support top pick maintenance and disassembly device, comprising a base, a disassembly mechanism for disassembling the top pick is arranged on the top of the base, a fixing plate is arranged on the top of the base, a second positioning pin is fixedly connected to the top of the fixing plate, an installation mechanism for installing the fixing plate is arranged on the top of the base, and a fixing mechanism for fixing the top pick is arranged on the top of the base.

[0007] As a preferred embodiment of the above technical solution, the disassembly mechanism includes a groove opened on the top of the base, a slider is slidably connected to the inner side of the groove, a first locating pin is fixedly connected to the top of the slider, and a hydraulic cylinder is fixedly connected to the outer side of the slider. When in use, the user can remove the end cover of the top pick with a special wrench, and then the locating pin hole on the top pick can be inserted into the second locating pin on the top of the fixed plate, and then the slider is driven to move by the hydraulic cylinder, and the movement of the slider drives the first locating pin to move. When the first locating pin moves to the position specified by the user, the user can insert the locating pin hole on the hydraulic cylinder body into the first locating pin on the slider, and then the user can turn the crank, and the rotation of the crank drives the two-way screw to rotate, and the rotation of the two-way screw drives the connecting block to move through the second limit rod, and the movement of the connecting block drives the two clamping plates to move. The two clamping plates move to a certain position to fix the hydraulic cylinder body, and then the top pick is pulled out of the hydraulic cylinder body through the operation of the hydraulic cylinder, thereby achieving the effect of disassembling the top pick, and the setting of the fixing mechanism makes it possible to fix hydraulic cylinder bodies of different sizes, thereby improving the scope of application.

[0008] As a preferred embodiment of the above technical solution, the hydraulic cylinder is installed on the outside of the base, and the output shaft of the hydraulic cylinder passes through the base and the groove to be fixedly connected to the slider, and the slider is distributed on the inner side of the groove.

[0009] As a preferred embodiment of the above technical solution, the mounting mechanism includes a positioning plate fixedly connected to the top of the base, an inner groove opened on the top of the base, and a slot opened on the outer side of the fixed plate, the inner side of the positioning plate is fixedly connected to two symmetrically distributed plug rods, the inner side of the inner groove is rotatably connected to a one-way screw, the external thread of the one-way screw is connected to a moving block, the external sliding connection of the moving block is connected to a first limiting rod, the top of the moving block is fixedly connected to a splint, and the outer end of the one-way screw is fixedly connected to a handle. When in use, the user can turn the handle, and the rotation of the handle drives the one-way screw to rotate, and the rotation of the one-way screw drives the moving block to move through the first limiting rod, and the moving block moves The movement drives the splint to move, and the movement of the splint drives the insertion rod to move. When the insertion rod moves to a certain position, it will be separated from the slot on the fixed plate. At this time, the user can remove the fixed plate, and then insert the slot on the new fixed plate into the insertion rod on the positioning plate, and then rotate the handle in the opposite direction. The rotation of the handle drives the one-way screw to rotate. Similarly, the moving block will move, and the movement of the moving block drives the splint and the insertion rod to move. When the insertion rod moves to a certain position, it will be inserted into the slot on the other side of the fixed plate. Then, the splint will fix the fixed plate with the cooperation of the positioning plate. At this time, the installation of the fixed plate is completed, thereby achieving the effect of facilitating the replacement of the damaged fixed plate, thereby improving practicality.

[0010] As a preferred embodiment of the above technical solution, the position of the positioning plate corresponds to the splint, one end of the one-way screw is rotatably connected to the inner side of the inner groove through a bearing seat, and the other end of the one-way screw passes through the inner groove and is fixedly connected to the handle, the first limit rod is fixedly connected to the inner side of the inner groove, there are two groups of insertion rods and slots, and each group has two, the two groups of insertion rods are fixedly connected to the inner sides of the positioning plate and the splint, respectively, the two groups of slots are opened on the fixed plate, and the positions of the two groups of slots correspond to the two groups of insertion rods, and the sizes of the two groups of slots match the two groups of insertion rods.

[0011] As a preferred embodiment of the above technical solution, the fixing mechanism includes a rectangular groove opened on the top of the base, a bidirectional screw is rotatably connected to the inner side of the rectangular groove, the external thread of the bidirectional screw is connected to two connecting blocks, the external sliding connection of the connecting block is connected to a second limit rod, the top of the connecting block is fixedly connected to a card plate with a card slot, and the outer end of the bidirectional screw is fixedly connected to a crank.

[0012] As a preferred embodiment of the above technical solution, one end of the bidirectional screw is rotatably connected to the inner side of the rectangular groove through a bearing seat, and the other end of the bidirectional screw passes through the rectangular groove and is fixedly connected to the crank, the second limit rod is fixedly connected to the inner side of the rectangular groove, the two connecting blocks are both slidably connected to the second limit rod, there are two clamping plates, the two clamping plates are respectively fixedly connected to the two connecting blocks, and clamping grooves are opened on the inner sides of the two clamping plates.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model has a base, a fixing plate, a second positioning pin, a disassembly mechanism, an installation mechanism and a fixing mechanism. When in use, the user can use a special wrench to remove the end cover of the top pick, and then insert the positioning pin hole on the top pick into the second positioning pin on the top of the fixing plate, and then drive the slider to move through the hydraulic cylinder, and the movement of the slider drives the first positioning pin to move. When the first positioning pin moves to the position specified by the user, the user can insert the positioning pin hole on the hydraulic cylinder into the first positioning pin on the slider, and then the user can turn the crank, and the rotation of the crank drives the two-way screw to rotate, and the rotation of the two-way screw drives the connecting block to move through the second limit rod, and the movement of the connecting block drives the two clamping plates to move. The two clamping plates move to a certain position to fix the hydraulic cylinder body, and then the top pick is pulled out of the hydraulic cylinder body through the operation of the hydraulic cylinder. When the fixing plate is damaged and needs to be replaced, the user can turn the handle, and the handle can be turned to rotate. The movement drives the one-way screw to rotate, and the rotation of the one-way screw drives the moving block to move through the first limit rod. The movement of the moving block drives the splint to move, and the movement of the splint drives the insertion rod to move. When the insertion rod moves to a certain position, it will be separated from the slot on the fixed plate. At this time, the user can remove the fixed plate, and then insert the slot on the new fixed plate into the insertion rod on the positioning plate, and then rotate the handle in the opposite direction. The rotation of the handle drives the one-way screw to rotate, and similarly the moving block will move, and the movement of the moving block drives the insertion rod to move. When the insertion rod moves to a certain position, it will be inserted into the slot on the other side of the fixed plate, and then the splint will fix the fixed plate with the cooperation of the positioning plate. At this time, the installation of the fixed plate is completed, which makes it convenient to disassemble the top pick and fix hydraulic cylinders of different sizes, thereby improving the scope of application, and the fixed plate can also be disassembled and assembled, so that the user can replace the damaged fixed plate conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a first-person perspective of a mining hydraulic support top pick maintenance and disassembly device;

[0016] Figure 2 It is a schematic cross-sectional view of a local structure of a mining hydraulic support top pick maintenance and disassembly device;

[0017] Figure 3 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 4 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point C in the middle.

[0020] In the figure: 1. base; 11. groove; 12. slider; 13. first positioning pin; 14. hydraulic cylinder; 2. fixing plate; 21. positioning plate; 22. inner groove; 23. insertion rod; 24. one-way screw; 25. moving block; 26. first limiting rod; 27. clamping plate; 28. handle; 29. ​​slot; 3. second positioning pin; 31. rectangular groove; 32. two-way screw; 33. connecting block; 34. second limiting rod; 35. clamping plate; 36. crank. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Embodiment 1

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a mining hydraulic support top pick maintenance and disassembly device, comprising a base 1, a disassembly mechanism for disassembling the top pick is arranged on the top of the base 1, a fixing plate 2 is arranged on the top of the base 1, a second positioning pin 3 is fixedly connected to the top of the fixing plate 2, a mounting mechanism for mounting the fixing plate 2 is arranged on the top of the base 1, a fixing mechanism for fixing the top pick is arranged on the top of the base 1, the disassembly mechanism comprises a groove 11 opened on the top of the base 1, a slider 12 is slidably connected to the inner side of the groove 11, a first positioning pin 13 is fixedly connected to the top of the slider 12, a hydraulic cylinder 14 is fixedly connected to the outer side of the slider 12, the hydraulic cylinder 14 is installed on the outer side of the base 1, and the output shaft of the hydraulic cylinder 14 passes through the base 1 and the groove 11 and is fixedly connected to the slider 12, and the slider 12 is distributed in the groove 1 1, the fixing mechanism includes a rectangular groove 31 opened on the top of the base 1, the inner side of the rectangular groove 31 is rotatably connected with a bidirectional screw 32, the outer side of the bidirectional screw 32 is threadedly connected with two connecting blocks 33, the outer side of the connecting block 33 is slidably connected with a second limiting rod 34, the top of the connecting block 33 is fixedly connected with a card plate 35 with a card slot, the outer end of the bidirectional screw 32 is fixedly connected with a crank 36, one end of the bidirectional screw 32 is rotatably connected to the inner side of the rectangular groove 31 through a bearing seat, and the other end of the bidirectional screw 32 passes through the rectangular groove 31 and is fixedly connected to the crank 36, the second limiting rod 34 is fixedly connected to the inner side of the rectangular groove 31, the two connecting blocks 33 are both slidably connected to the second limiting rod 34, there are two card plates 35, the two card plates 35 are respectively fixedly connected to the two connecting blocks 33, and the inner sides of the two card plates 35 are both provided with card slots.

[0024] Through the above technical scheme, when in use, the user can remove the end cover of the top pick with a special wrench, and then insert the locating pin hole on the top pick into the second locating pin 3 on the top of the fixing plate 2, and then drive the slider 12 to move through the hydraulic cylinder 14, and the movement of the slider 12 drives the first locating pin 13 to move. When the first locating pin 13 moves to the position specified by the user, the user can insert the locating pin hole on the hydraulic cylinder body into the first locating pin 13 on the slider 12, and then the user can turn the crank 36, and the rotation of the crank 36 drives the bidirectional screw 32 to rotate, and the rotation of the bidirectional screw 32 drives the connecting block 33 to move through the second limiting rod 34, and the movement of the connecting block 33 drives the two clamping plates 35 to move. The two clamping plates 35 move to a certain position to fix the hydraulic cylinder body, and then the hydraulic cylinder 14 works to pull the top pick out of the hydraulic cylinder body, thereby achieving the effect of disassembling the top pick, and the setting of the fixing mechanism makes it possible to fix hydraulic cylinder bodies of different sizes, thereby improving the scope of application.

[0025] Embodiment 2

[0026] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the utility model provides a technical solution: a mining hydraulic support top pick maintenance and disassembly device, comprising a base 1, a disassembly mechanism for disassembling the top pick is arranged on the top of the base 1, a fixing plate 2 is arranged on the top of the base 1, a second positioning pin 3 is fixedly connected to the top of the fixing plate 2, a mounting mechanism for mounting the fixing plate 2 is arranged on the top of the base 1, a fixing mechanism for fixing the top pick is arranged on the top of the base 1, the mounting mechanism comprises a positioning plate 21 fixedly connected to the top of the base 1 and an inner groove 22 opened on the top of the base 1, and a slot 29 opened on the outside of the fixing plate 2, two symmetrically distributed insertion rods 23 are fixedly connected to the inner side of the positioning plate 21, a one-way screw 24 is rotatably connected to the inner side of the inner groove 22, and a movable rod 24 is threadedly connected to the outer side of the one-way screw 24. The movable block 25 has a first limiting rod 26 which is slidably connected to the outside of the movable block 25, a clamping plate 27 is fixedly connected to the top of the movable block 25, a handle 28 is fixedly connected to the outer end of the one-way screw 24, and the position of the positioning plate 21 corresponds to the clamping plate 27. One end of the one-way screw 24 is rotatably connected to the inner side of the inner groove 22 through a bearing seat, and the other end of the one-way screw 24 passes through the inner groove 22 and is fixedly connected to the handle 28. The first limiting rod 26 is fixedly connected to the inner side of the inner groove 22. There are two groups of insertion rods 23 and slots 29, and each group has two. The two groups of insertion rods 23 are fixedly connected to the inner sides of the positioning plate 21 and the clamping plate 27, respectively. The two groups of slots 29 are both opened on the fixed plate 2, and the positions of the two groups of slots 29 correspond to the two groups of insertion rods 23, and the sizes of the two groups of slots 29 match the two groups of insertion rods 23.

[0027] The one-way screw 24 is rotated to rotate, and the one-way screw 24 is rotated to drive the moving block 25 to move through the first limit rod 26, and the moving block 25 moves to drive the clamping plate 27 to move, and the clamping plate 27 moves to drive the insertion rod 23 to move, and the insertion rod 23 moves to a certain position and separates from the slot 29 on the fixed plate 2. At this time, the user can remove the fixed plate 2, and then insert the slot 29 on the new fixed plate 2 into the insertion rod 23 on the positioning plate 21, and then rotate the handle 28 in the opposite direction, and the handle 28 rotates to drive the one-way screw 24 to rotate. Similarly, the moving block 25 will move, and the moving block 25 movement drives the clamping plate 27 and the insertion rod 23 to move, and the insertion rod 23 moves to a certain position and inserts into the slot 29 on the other side of the fixed plate 2, and then the clamping plate 27 can fix the fixed plate 2 with the cooperation of the positioning plate 21, and the installation of the fixed plate 2 is completed at this time, thereby achieving the effect of facilitating the replacement of the damaged fixed plate 2, thereby improving practicality.

[0028] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A mining hydraulic support top pick maintenance and disassembly device, comprising a base (1), a disassembly mechanism for disassembling the top pick is arranged on the top of the base (1), and the characteristics are: A fixing plate (2) is arranged on the top of the base (1), a second positioning pin (3) is fixedly connected to the top of the fixing plate (2), a mounting mechanism for mounting the fixing plate (2) is arranged on the top of the base (1), and a fixing mechanism for fixing a top pick is arranged on the top of the base (1).

2. A mining hydraulic support top pick maintenance and disassembly device according to claim 1, characterized in that: The disassembly mechanism comprises a groove (11) formed on the top of the base (1); a slider (12) is slidably connected to the inner side of the groove (11); a first positioning pin (13) is fixedly connected to the top of the slider (12); and a hydraulic cylinder (14) is fixedly connected to the outer side of the slider (12).

3. A mining hydraulic support top pick maintenance and disassembly device according to claim 2, characterized in that: The hydraulic cylinder (14) is installed on the outside of the base (1), and the output shaft of the hydraulic cylinder (14) passes through the base (1) and the groove (11) and is fixedly connected to the slider (12), and the slider (12) is distributed on the inside of the groove (11).

4. A mining hydraulic support top pick maintenance and disassembly device according to claim 1, characterized in that: The mounting mechanism comprises a positioning plate (21) fixedly connected to the top of the base (1), an inner groove (22) opened at the top of the base (1), and a slot (29) opened at the outside of the fixing plate (2); two symmetrically distributed insertion rods (23) are fixedly connected to the inner side of the positioning plate (21); a one-way screw (24) is rotatably connected to the inner side of the inner groove (22); a moving block (25) is threadedly connected to the outside of the one-way screw (24); a first limiting rod (26) is slidably connected to the outside of the moving block (25); a clamping plate (27) is fixedly connected to the top of the moving block (25); and a handle (28) is fixedly connected to the outer end of the one-way screw (24).

5. A mining hydraulic support top pick maintenance and disassembly device according to claim 4, characterized in that: The position of the positioning plate (21) corresponds to the clamping plate (27), one end of the one-way screw (24) is rotatably connected to the inner side of the inner groove (22) through a bearing seat, and the other end of the one-way screw (24) passes through the inner groove (22) and is fixedly connected to the handle (28), the first limiting rod (26) is fixedly connected to the inner side of the inner groove (22), there are two groups of the insertion rods (23) and the slots (29), and each group has two, the two groups of the insertion rods (23) are fixedly connected to the inner sides of the positioning plate (21) and the clamping plate (27), respectively, the two groups of the slots (29) are both opened on the fixed plate (2), and the positions of the two groups of slots (29) correspond to the two groups of insertion rods (23), and the sizes of the two groups of slots (29) match the two groups of insertion rods (23).

6. The mining hydraulic support top pick maintenance and disassembly device according to claim 1 is characterized by: The fixing mechanism comprises a rectangular groove (31) formed on the top of the base (1); a bidirectional screw rod (32) is rotatably connected to the inner side of the rectangular groove (31); two connecting blocks (33) are connected to the outer side of the bidirectional screw rod (32) by threads; a second limiting rod (34) is slidably connected to the outer side of the connecting block (33); a card plate (35) with a card slot is fixedly connected to the top of the connecting block (33); and a crank (36) is fixedly connected to the outer end of the bidirectional screw rod (32).

7. A mining hydraulic support top pick maintenance and disassembly device according to claim 6, characterized in that: One end of the bidirectional screw (32) is rotatably connected to the inner side of the rectangular groove (31) through a bearing seat, and the other end of the bidirectional screw (32) passes through the rectangular groove (31) and is fixedly connected to the crank (36). The second limit rod (34) is fixedly connected to the inner side of the rectangular groove (31). The two connecting blocks (33) are both slidably connected to the second limit rod (34). There are two clamping plates (35), and the two clamping plates (35) are respectively fixedly connected to the two connecting blocks (33), and the inner sides of the two clamping plates (35) are provided with clamping grooves.

Images