A hydraulic support coal collecting device

Abstract

The application provides a hydraulic support coal collecting device and belongs to the field of hydraulic supports. The hydraulic support coal collecting device comprises a hydraulic support body, a side extension blocking arm arranged on the hydraulic support body, and a protection frame fixedly connected to one end of the side extension blocking arm. The protection frame comprises two guide seats fixed to the front and rear sides of the bottom inner wall of the protection frame, a fixing frame fixedly connected to the middle of the bottom inner wall of the protection frame, a screw rod rotatably connected to the fixing frame, a sliding block externally screwed with the screw rod, and the sliding block slidingly connected between the inner walls of the fixing frame. The circulating coal crushing assembly can crush the coal blocks in the rear scraper conveyor after the side extension blocking arm is withdrawn when the hydraulic support is working, so that the problem of machine jamming caused by the large volume of the coal blocks is avoided, the normal coal collecting speed and the coal collecting efficiency of the hydraulic support during use are ensured, and the failure rate is reduced.

Description

Technical Field

[0001] This invention relates to the field of hydraulic support technology, specifically to a hydraulic support coal receiving device. Background Technology

[0002] Hydraulic supports are structures used to control mine pressure at coal mining faces. When working, the hydraulic supports are connected to scraper conveyors on both the front and rear sides. The rear scraper conveyor is used to transport the coal roof fragments that collapse behind the hydraulic supports as they move forward.

[0003] When the existing hydraulic support is collecting the coal roof, it only removes the rear support arm, allowing the coal roof to fall completely onto the scraper conveyor under gravity. However, the coal blocks are large in size when they are not completely crushed, and they are easy to get stuck on the scraper conveyor, preventing the scraper from moving forward. This requires manual or external machinery to clean them, which affects the coal collection speed and efficiency of the hydraulic support.

[0004] Therefore, we propose a hydraulic support coal receiving device to solve the problems encountered above. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a hydraulic support coal receiving device to solve the problems mentioned in the background section.

[0006] The objective of this invention can be achieved through the following technical solution: it includes a hydraulic support body, on which a side extension arm is provided, and a protective frame is fixedly connected to one end of the side extension arm;

[0007] The storage assembly includes two guide seats fixed to the front and rear sides of the bottom inner wall of the protective frame. A fixed frame is also fixedly connected to the middle of the bottom inner wall of the protective frame. A lead screw is rotatably connected inside the fixed frame, and a slider is threaded onto the lead screw. The slider is slidably connected between the inner walls of the fixed frame. A movable frame is fixedly connected to the top of the slider. Guide blocks are fixedly connected to the front and rear sides of the bottom of the movable frame, and the guide blocks are slidably connected to adjacent guide seats. A movable motor is fixedly connected to one side of the fixed frame. Bevel gears are fixedly connected to the output end of the movable motor and the outer end of the lead screw. Adjacent bevel gears mesh with each other. The protective frame... The protective frame is rotatably connected to a baffle door. A horizontal push rod is fixedly connected to the front and rear sides of the top of the movable frame. A rotating seat is slidably connected to the front and rear sides of the top inner wall of the protective frame. A connecting rod is rotatably connected to the rotating seat, with one end of the connecting rod rotatably connected to the adjacent side of the baffle door. A first rack is fixedly connected to the bottom of the rotating seat. A spring is fixedly connected between one end of the first rack and the adjacent inner wall of the protective frame. Mounting plates are fixedly connected to the front and rear inner walls of the protective frame. A tilting gear is fixedly connected to the mounting plate. A lifting rack is slidably connected to the mounting plate and to one side of the tilting gear. The lifting rack, the first rack, and the adjacent tilting gear are all meshed.

[0008] Preferably, the circulating coal crushing assembly includes slids on the front and rear sides of a movable frame. A movable seat is slidably connected in the slids. A crushing motor is fixedly connected to one side of the movable seat, and a coal crushing rod is rotatably connected to the other side of the movable seat. One end of the coal crushing rod is fixedly connected to the output end of an adjacent crushing motor. A second rack is also fixedly connected to one side of the movable seat. A bracket is fixedly connected to the middle of the same side of the movable frame as the second rack. A reciprocating motor is fixedly connected to one side of the bracket. A reciprocating gear is fixedly connected to the output end of the reciprocating motor, and the reciprocating gear meshes with an adjacent second rack.

[0009] Preferably, the end of the horizontal push rod near the lifting rack is set as an inclined surface, and the front view cross-section shape of the lifting rack is a right trapezoid.

[0010] Preferably, at the rear flip gear, the adjacent transverse push rod is located in front of it, while the adjacent first rack is located behind the transverse push rod and the lifting rack.

[0011] Preferably, the two second racks are staggered about the same reciprocating gear and are symmetrical about the central axis of the reciprocating gear.

[0012] Preferably, the transmission ratios of the flipping gear meshing with the first rack and the lifting rack are the same.

[0013] Preferably, the rotary seat has a through hole, and a plug shaft is fixedly connected to one side of the connecting rod, with the plug shaft movably connected to the through hole on the adjacent rotary seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The circulating coal crushing component can crush the coal blocks in the rear scraper conveyor after the side extension arm of the hydraulic support is retracted during operation. This avoids the problem of coal blocks accumulating and jamming due to their large size, ensuring the normal coal collection speed and efficiency of the hydraulic support during use, and reducing the failure rate.

[0016] 2. The storage component can be hidden when not in use to avoid affecting the normal coal roof support function of the hydraulic support. It can also be extended for operation when needed and retracted for protection when not needed, thus improving the service life of the circulating coal crushing component. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a partially enlarged structural schematic diagram of the present invention;

[0021] Figure 4 yes Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 yes Figure 3 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Main body of hydraulic support; 2. Side extension arm; 3. Protective frame; 4. Slide groove; 5. Guide seat; 6. Fixed frame; 7. Lead screw; 8. Slider; 9. Moving frame; 10. Guide block; 11. Moving motor; 12. Bevel gear; 13. Baffle gate; 14. Horizontal push rod; 15. Rotary seat; 16. Connecting rod; 17. First rack; 18. Spring; 19. Mounting plate; 20. Tilting gear; 21. Lifting rack; 22. Movable seat; 23. Crushing motor; 24. Coal crushing rod; 25. Second rack; 26. Support; 27. Reciprocating motor; 28. Reciprocating gear. Detailed Implementation

[0024] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-5 As shown, a hydraulic support coal receiving device includes a hydraulic support body 1, a side extension arm 2 is provided on the hydraulic support body 1, and a protective frame 3 is fixedly connected to one end of the side extension arm 2.

[0026] The storage assembly includes two guide seats 5 fixed to the front and rear sides of the bottom inner wall of the protective frame 3. A fixed frame 6 is also fixedly connected to the middle of the bottom inner wall of the protective frame 3. A lead screw 7 is rotatably connected inside the fixed frame 6, and a slider 8 is threaded onto the lead screw 7. The slider 8 is slidably connected between the inner walls of the fixed frame 6. A movable frame 9 is fixedly connected to the top of the slider 8. Guide blocks 10 are fixedly connected to the front and rear sides of the bottom of the movable frame 9, and the guide blocks 10 are slidably connected to the adjacent guide seats 5. A movable motor 11 is fixedly connected to one side of the fixed frame 6. A bevel gear 12 is fixedly connected to the output end of the movable motor 11 and the outer end of the lead screw 7. Adjacent bevel gears 12 mesh with each other. A baffle door is rotatably connected to one side of the protective frame 3. 13. A horizontal push rod 14 is fixedly connected to the front and rear sides of the top of the movable frame 9. A rotating seat 15 is slidably connected to the front and rear sides of the top inner wall of the protective frame 3. A connecting rod 16 is rotatably connected to the rotating seat 15. One end of the connecting rod 16 is rotatably connected to the adjacent side of the baffle door 13. A first rack 17 is fixedly connected to the bottom of the rotating seat 15. A spring 18 is fixedly connected between one end of the first rack 17 and the adjacent inner wall of the protective frame 3. Mounting plates 19 are fixedly connected to the front and rear inner walls of the protective frame 3. A flip gear 20 is fixedly connected to the mounting plate 19. A lifting rack 21 is also slidably connected to the mounting plate 19 and located on one side of the flip gear 20. The lifting rack 21, the first rack 17 and the adjacent flip gear 20 are all meshed.

[0027] It should be noted that the guide seat 5 and guide block 10 cooperate to guide the movement of the moving frame 9. The bevel gear 12 meshes with each other to change the transmission direction, leaving space for the installation of the moving motor 11. When moving, the horizontal push rod 14 can push the lifting rack 21 to rise and fall on one side of the mounting plate 19 by contacting and squeezing. Then, by meshing with the flip gear 20, it drives the first rack 17 to move, which in turn drives the rotating seat 15 to move. The angle change between it and the connecting rod 16 drives the baffle door 13 to flip and open, so that the coal crushing rod 24 can be moved out synchronously. The mounting plate 19 is used to fix the flip gear 20 and the lifting rack 21. The spring 18 is used to reset the rotating seat 15 when it is not under force. Through the set storage component, the circulating coal crushing component can be hidden when not in use to avoid affecting the normal coal roof support function of the hydraulic support. At the same time, it can also be extended for operation when needed and retracted for protection when not needed, thus improving the service life of the circulating coal crushing component.

[0028] The circulating coal crushing assembly includes chutes 4 on the front and rear sides of the movable frame 9. A movable seat 22 is slidably connected in the chutes 4. A crushing motor 23 is fixedly connected to one side of the movable seat 22, and a coal crushing rod 24 is rotatably connected to the other side of the movable seat 22. One end of the coal crushing rod 24 is fixedly connected to the output end of the adjacent crushing motor 23. A second rack 25 is also fixedly connected to one side of the movable seat 22. A bracket 26 is fixedly connected to the middle of the same side as the second rack 25 on the movable frame 9. A reciprocating motor 27 is fixedly connected to one side of the bracket 26. A reciprocating gear 28 is fixedly connected to the output end of the reciprocating motor 27. The reciprocating gear 28 meshes with the adjacent second rack 25. Through the circulating coal crushing assembly, after the side extension arm 2 is retracted during operation, the coal blocks in the rear scraper conveyor can be crushed, avoiding the problem of accumulation and jamming due to their large size. This ensures the normal coal collection speed and efficiency of the hydraulic support during use and reduces the failure rate.

[0029] It should be noted that the chute 4 is used to guide the movable seat 22. The output end of the reciprocating motor 27 drives the reciprocating gear 28 to rotate intermittently in both directions. Through its meshing with the adjacent second rack 25, it drives the movable seats 22 and the coal crushing rod 24 on both sides to perform reciprocating crushing motion, thereby expanding the coal crushing range in the scraper conveyor, improving the coal crushing effect, and speeding up the coal collection speed.

[0030] In this embodiment, the end of the horizontal push rod 14 near the lifting rack 21 is set as an inclined surface. The front view cross-section of the lifting rack 21 is a right trapezoid. The inclined surfaces abut against each other, which makes it easy for the horizontal push rod 14 to push the lifting rack 21 upward when it moves laterally, and facilitates changing the transmission direction.

[0031] In this embodiment, at the rear flip gear 20, the adjacent horizontal push rod 14 is located in front of it, while the adjacent first rack 17 is located behind the horizontal push rod 14 and the lifting rack 21. By limiting the position of each component, interference during their mutual operation can be avoided, ensuring the reliable and stable operation of the structure.

[0032] In this embodiment, the two second racks 25 are staggered about the same reciprocating gear 28 and are symmetrical about the central axis of the reciprocating gear 28. The staggered arrangement allows the second racks 25 and the reciprocating gear 28 to mesh without interfering with each other. When the reciprocating gear 28 rotates in one direction, the two second racks 25 can move relative to each other, which facilitates the control of the relative movement of the movable seats 22 on both sides to crush coal and expand the coal crushing range.

[0033] In this embodiment, the transmission ratios of the flip gear 20 meshing with the first rack 17 and the lifting rack 21 are the same. By setting the transmission ratios to be the same, the rising height of the lifting rack 21 can be the same as the horizontal moving distance of the rotary table 15, which makes it easier to design the size of the lifting rack 21.

[0034] In this embodiment, a through hole is provided on the rotary seat 15, and a plug shaft is fixedly connected to one side of the connecting rod 16. The plug shaft is movably connected in the through hole on the adjacent rotary seat 15. The cooperation between the through hole and the plug shaft facilitates the connection between the connecting rod 16 and the rotary seat 15, making installation convenient.

[0035] In practical use, when it is necessary to crush coal blocks poured into the scraper conveyor behind the hydraulic support body 1 to assist in coal collection, the controller controls the operation of the moving motor 11 and the crushing motor 23. The crushing motor 23 drives the crushing rod 24 to rotate, and the moving motor 11 drives the bevel gear 12 to rotate. Through the meshing of the bevel gear 12, the lead screw 7 rotates, and through the threaded engagement between the lead screw 7 and the slider 8, the slider 8 and the moving frame 9 move towards the side closer to the baffle gate 13. At the same time, the moving frame 9 pushes the lifting rack 21 upward through the horizontal push rod 14. When the lifting rack 21 rises, it interacts with the tilting gear 20. The meshing drives the first rack 17 to move, which in turn drives the rotating seat 15 to move closer to the baffle gate 13. The change in angle between the connecting rod 16, the rotating seat 15, and the baffle gate 13 causes the baffle gate 13 to rotate outward and open, allowing the moving coal crushing rod 24 to extend. At the same time, the controller controls the reciprocating motor 27 to work, which drives the reciprocating gear 28 to rotate. Through the meshing between the reciprocating motor 27 and the second rack 25, the movable seat 22 slides in the slide groove 4, thereby realizing the relative movement of the two coal crushing rods 24. By controlling the forward and reverse rotation of the output end of the reciprocating motor 27, the direction of movement of the coal crushing rod 24 is controlled, thereby expanding its coal crushing range.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hydraulic support coal receiving device, characterized in that, include: A hydraulic support body (1) is provided with a side extension arm (2), and a protective frame (3) is fixedly connected to one end of the side extension arm (2). The storage assembly includes two guide seats (5) fixed to the front and rear sides of the bottom inner wall of the protective frame (3). A fixed frame (6) is also fixedly connected to the middle of the bottom inner wall of the protective frame (3). A lead screw (7) is rotatably connected inside the fixed frame (6). A slider (8) is threadedly connected to the lead screw (7). The slider (8) is slidably connected between the inner walls of the fixed frame (6). A movable frame (9) is fixedly connected to the top of the slider (8). Guide blocks (10) are fixedly connected to the front and rear sides of the bottom of the movable frame (9). The guide blocks (10) are slidably connected inside the adjacent guide seats (5). A movable motor (11) is fixedly connected to one side of the fixed frame (6). A bevel gear (12) is fixedly connected to the output end of the movable motor (11) and the outer end of the lead screw (7). Adjacent bevel gears (12) mesh with each other. A baffle door is rotatably connected to one side of the protective frame (3). (13) A horizontal push rod (14) is fixedly connected to the front and rear sides of the top of the movable frame (9). A rotating seat (15) is slidably connected to the front and rear sides of the top inner wall of the protective frame (3). A connecting rod (16) is rotatably connected to the rotating seat (15). One end of the connecting rod (16) is rotatably connected to the adjacent side of the baffle door (13). A first rack (17) is fixedly connected to the bottom of the rotating seat (15). A spring (18) is fixedly connected between one end of the first rack (17) and the adjacent inner wall of the protective frame (3). A mounting plate (19) is fixedly connected to the front and rear inner walls of the protective frame (3). A flip gear (20) is fixedly connected to the mounting plate (19). A lifting rack (21) is slidably connected to the mounting plate (19) and located on one side of the flip gear (20). The lifting rack (21), the first rack (17) and the adjacent flip gear (20) are all meshed. A circulating coal crushing assembly includes a sliding groove (4) on the front and rear sides of a movable frame (9). A movable seat (22) is slidably connected in the sliding groove (4). A crushing motor (23) is fixedly connected to one side of the movable seat (22). A coal crushing rod (24) is rotatably connected to the other side of the movable seat (22). One end of the coal crushing rod (24) is fixedly connected to the output end of an adjacent crushing motor (23). A second rack (25) is also fixedly connected to one side of the movable seat (22). A bracket (26) is fixedly connected to the middle of the same side as the second rack (25) on the movable frame (9). A reciprocating motor (27) is fixedly connected to one side of the bracket (26). A reciprocating gear (28) is fixedly connected to the output end of the reciprocating motor (27). The reciprocating gear (28) meshes with the adjacent second rack (25). The end of the horizontal push rod (14) near the lifting rack (21) is set as an inclined surface, and the front view cross-section shape of the lifting rack (21) is a right trapezoid.

2. The hydraulic support coal receiving device according to claim 1, characterized in that, At the rear flip gear (20), the adjacent transverse push rod (14) is in front of it, while the adjacent first rack (17) is behind the transverse push rod (14) and the lifting rack (21).

3. The hydraulic support coal receiving device according to claim 2, characterized in that, The two second racks (25) are staggered about the same reciprocating gear (28) and are symmetrical about the central axis of the reciprocating gear (28).

4. A hydraulic support coal receiving device according to claim 3, characterized in that, The transmission ratios of the flipping gear (20) meshing with the first rack (17) and the lifting rack (21) are consistent.

5. A hydraulic support coal receiving device according to claim 4, characterized in that, The rotating base (15) has a through hole, and a plug shaft is fixedly connected to one side of the connecting rod (16). The plug shaft is movably connected to the through hole on the adjacent rotating base (15).

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