Quick replacement device for downhole electric locomotive traction line

Abstract

The present application belongs to the technical field of traction frame line replacement equipment, and particularly relates to a quick replacement device for a traction line of an underground electric locomotive. The specific technical scheme is as follows: the device comprises a pay-off component and a traction component, the traction component comprises a pulley support, two groups of first pulleys are symmetrically arranged on the pulley support, a second pulley is arranged between the two groups of first pulleys and above the two groups of first pulleys, and the traction line paid off by the pay-off component passes between the two groups of first pulleys and the second pulley to tighten the traction line. The device can effectively reduce damage to the new traction line during replacement of the traction line, improve the installation quality of the traction line, greatly improve the labor cost and operation efficiency of underground replacement of the traction line, and ensure safe and stable operation of the electric locomotive.

Description

Technical Field

[0001] This invention belongs to the technical field of underground locomotive traction line replacement equipment, specifically relating to a quick replacement device for underground locomotive traction lines. Background Technology

[0002] The traction line of underground rail transport in mines is the main power source for rail transport locomotives, and its condition is extremely important for the normal operation of the locomotives. Due to the high temperature and humidity underground, the traction line is prone to twisting, deformation, and excessive wear after prolonged use, affecting the safe and stable operation of the locomotives. Damaged traction lines need to be replaced in a timely manner.

[0003] Due to the height limitations of the underground roadways, the current method for replacing traction lines is to fix a hand-operated hoist to the roadway anchor bolts and tighten the hoist to eliminate the bending stress. On-site maintenance personnel then secure the traction line. This method has the following drawbacks: (1) the fixing point between the hand-operated hoist and the traction line is prone to deformation, affecting the stability of the locomotive; (2) maintenance personnel need to frequently climb to heights and use pipe wrenches to place the new traction line's clamping groove above for securing it, posing a safety hazard; (3) the replacement efficiency is low, requiring multiple people working for an extended period. Therefore, to quickly and safely replace the traction line, we propose a rapid traction line replacement device. Summary of the Invention

[0004] To address the problems of traction wire deformation, prolonged high-altitude work for maintenance personnel, and low replacement efficiency in the current process of replacing electric locomotive traction wires, the purpose of this invention is to provide a quick replacement device for underground electric locomotive traction wires. Using this device to replace underground traction wires can significantly improve work efficiency, reduce the labor intensity of personnel, and ensure the safety of personnel during the operation.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this invention is: a quick-change device for the traction line of an underground electric locomotive, comprising a line-laying component and a traction component. The traction component includes a pulley bracket, on which two sets of first pulleys are symmetrically arranged. A second pulley is arranged between and above the two sets of first pulleys. The traction line released by the line-laying component passes between the two sets of first pulleys and the second pulley, thereby tightening the traction line.

[0006] Preferably, the pulley bracket includes two symmetrically arranged fixed plates, the two fixed plates are in the shape of a cross, two sets of first pulleys are arranged between the horizontal parts of the two fixed plates, the second pulleys are arranged at the upper end of the vertical parts of the two fixed plates, and the fixed plates are provided with an adjustment component, the adjustment component adjusts the position of the second pulley in the vertical direction.

[0007] Preferably, the vertical portion of the fixing plate is provided with an adjustment through hole along the vertical direction; the second pulley is connected to the fixing plate through a second rotating shaft; the two ends of the second rotating shaft pass through the two adjustment through holes and are limited by the second fixing block; the second fixing block is connected to the adjustment assembly, and the adjustment assembly adjusts the position of the second fixing block on the adjustment through hole.

[0008] Preferably, a first support plate is provided on the top of the two fixed plates, and the adjustment assembly includes an adjustment screw. The lower part of the adjustment screw passes through the first support plate and is rotatably connected to the second fixed block. The adjustment screw is threadedly connected to the first support plate. A buffer spring is provided around the adjustment screw. One end of the buffer spring is connected to the top of the adjustment screw, and the other end is connected to the upper surface of the first support plate.

[0009] Preferably, the first pulley is connected to the two fixed plates via a first rotating shaft, the two ends of the first rotating shaft pass through the two fixed plates and are limited by a first fixing block; the first pulley is rotatably connected to the two fixed plates.

[0010] Preferably, the lower part of the pulley bracket is provided with a first adjusting column, the first adjusting column includes a first fixed column and a first sliding column, the first sliding column and the first fixed column are slidably connected, the first fixed column is provided with a plurality of first through holes, the first sliding column is provided with a plurality of second through holes corresponding to the positions of the first through holes, and the fixing member passes through the first through holes and the second through holes to connect and fix the first fixed column and the first sliding column.

[0011] Preferably, the wire feeding component includes a rotatable traction rope reel, and a locking assembly is provided on the side of the traction rope reel to prevent the traction rope reel from rotating under the action of inertial force.

[0012] Preferably, the locking assembly includes a locking cam that rotates synchronously with the traction rope reel. A fixed locking plate is provided on the side of the traction rope reel, and a receiving area is provided on the locking plate for accommodating the locking cam. A locking block is provided on the side wall of the receiving area along the rotation direction of the locking cam. An external force acts on the traction rope reel to drive the locking cam to squeeze the locking block, causing the locking cam to rotate.

[0013] Preferably, the receiving area is circular in shape, and a limiting groove adapted to the locking block is provided on the inner side wall of the circular receiving area. A compression spring is fixedly provided in the limiting groove, and the other end of the compression spring is fixedly connected to the locking block. In the natural state, the locking block protrudes out of the limiting groove and extends into the receiving area.

[0014] Preferably, the locking block is frustum-shaped, and several locking blocks are evenly arranged on the inner sidewall of the receiving area, forming a circular shape.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By configuring a traction component, which includes a pulley bracket with a set of first pulleys symmetrically arranged on it, and a second pulley positioned between and above the two first pulleys, the traction line released by the line-laying component passes sequentially through one of the first pulleys, the second pulley, and the other first pulley, tightening the traction line. This effectively corrects the bending stress of the new traction line, improves labor efficiency, and has broad application prospects. It can effectively reduce damage to the new traction line during replacement, improve the installation quality of the traction line, and significantly increase the labor cost and work efficiency of replacing traction lines underground, while ensuring the safe and stable operation of the locomotive. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the pulley bracket structure of the present invention;

[0019] Figure 3 This is a front view of the connection structure between the locking block and the locking plate of the present invention;

[0020] Figure 4 This is a side view of the connection structure between the locking block and the locking plate of the present invention.

[0021] In the diagram: 1. Traction line; 2. Fixing plate; 3. First support plate; 4. Adjusting screw; 5. Buffer spring; 6. Adjusting through hole; 7. Second pulley; 8. Second fixing block; 9. First pulley; 10. First fixing block; 11. First fixing column; 12. First sliding column; 13. Second through hole; 14. Locking plate; 15. Locking cam; 16. Limiting groove; 17. Compression spring; 18. Locking block; 19. Rotating shaft; 20. Receiving area; 21. Traction line rope reel; 22. Second fixing column; 23. Third through hole; 24. Second sliding column; 25. Fourth through hole; 26. Guide roller; 27. Rear flatbed; 28. Front flatbed; 29. ​​Rope reel bracket; 30. First through hole. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0023] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0024] like Figure 1-4 As shown, the quick-change device for the traction line 1 of the underground locomotive includes a line-laying component, a traction component, and a support component arranged sequentially along the line-laying direction of the traction line 1. The line-laying component is used to lay out the traction line 1, the traction component is used to tighten and guide the traction line 1, and the support component is used to further guide the traction line 1. The traction component includes a pulley bracket, on which a set of first pulleys 9 are symmetrically arranged. A second pulley 7 is arranged between the two first pulleys 9 and above them. The traction line 1 laid out by the line-laying component passes sequentially through one of the first pulleys 9, the second pulley 7, and the other first pulley 9, tightening the traction line 1. It should be noted that the two first pulleys 9 and the second pulley 7 are arranged on the same vertical plane for guiding the traction line 1.

[0025] A more optimized technical solution involves symmetrically arranged two sets of first pulleys 9 on the pulley bracket. A second pulley 7 is positioned between and above the two sets of first pulleys 9. The traction line 1 released by the line-laying component passes sequentially through two of the first pulleys 9, the second pulley 7, and the other two first pulleys 9, tightening the traction line 1. Two first pulleys 9 symmetrically arranged on the pulley bracket with the vertical direction of the second pulley 7 as the center constitute one set of first pulleys 9. It should be noted that the two sets of first pulleys 9 (four first pulleys 9) and the second pulley 7 are arranged on the same vertical plane to guide the traction line 1.

[0026] The quick-change device also includes a front flatbed 28 and a rear flatbed 27. The wire feeding component and the traction component are placed on the front flatbed 28, with the wire feeding component positioned in front of the traction component; the support component is placed on the rear flatbed 27. The front flatbed 28 and the rear flatbed 27 move forward synchronously.

[0027] Specific implementation of the pulley bracket: The pulley bracket includes two symmetrically arranged fixed plates 2, the two fixed plates 2 being in the shape of a cross. The first pulley 9 is symmetrically arranged between the horizontal parts of the two fixed plates 2 with the vertical part of the fixed plate 2 as the center line. The second pulley 7 is arranged at the upper end of the vertical part of the two fixed plates 2. An adjustment component is provided on the fixed plate 2. The adjustment component adjusts the position of the second pulley 7 in the vertical direction, which can adjust the traction and release force of the traction component.

[0028] Furthermore, the vertical portions of the two fixed plates 2 are provided with strip-shaped adjustment holes 6 along the vertical direction. The second pulley 7 is connected to the fixed plate 2 via a second rotating shaft. Both ends of the second rotating shaft pass through the two adjustment holes 6 and are limited by the second fixing block 8. The second fixing block 8 restricts the rotation of the second pulley 7 between the two fixed plates 2, preventing the second rotating shaft from sliding out of the adjustment holes 6. The second fixing block 8 is connected to an adjustment assembly, which adjusts the position of the second fixing block 8 in the adjustment holes 6. By moving the second fixing block 8 up and down through the adjustment assembly, the position of the second pulley 7 in the vertical direction is controlled, and the distance between the first pulley 9 and the second pulley 7 in the vertical direction is adjusted.

[0029] In a preferred embodiment, the diameter of the second pulley 7 is larger than the diameter of the first pulley 9. The two first pulleys 9 closest to the second pulley 7 are horizontally higher than the two first pulleys 9 furthest from the second pulley 7, effectively correcting the bending stress of the new traction line 1. The lowest point of the second pulley 7 in the vertical direction is lower than the highest point of the two first pulleys 9 closest to the second pulley 7 in the vertical direction. Simultaneously, to facilitate the fixing of the double-groove traction line 1, the concave radius of the circumferences of the first pulleys 9 and the second pulley 7 is the same as the size of the double-groove traction line 1, preventing the traction line 1 from rotating in direction as it passes through the first pulleys 9 and the second pulley 7.

[0030] Specific implementation of the adjustment assembly: A first support plate 3 is provided on the top of the two fixed plates 2. The adjustment assembly includes an adjustment screw 4, the lower part of which passes through the first support plate 3 and is rotatably connected to a second fixed block 8. The adjustment screw 4 is threadedly connected to the first support plate 3. When the adjustment screw 4 rotates, it moves upward or downward on the first support plate 3, driving the second pulley 7 to move upward or downward via the second fixed block 8. The two second fixed blocks 8 are used to lock the second rotating shaft onto the two fixed plates 2, and the second pulley 7 rotates around the first rotating shaft. The second fixed block 8 can be a locking nut.

[0031] In a more preferred embodiment, a buffer spring 5 is provided around the adjusting screw 4, with one end of the buffer spring 5 connected to the top of the adjusting screw 4 and the other end connected to the upper surface of the first support plate 3.

[0032] The first pulley 9 is connected to the two fixed plates 2 as follows: the first pulley 9 is connected to the two fixed plates 2 via a first rotating shaft, the two ends of the first rotating shaft passing through the two fixed plates 2 and limited by the first fixing blocks 10; the first pulley 9 is rotatably connected to the two fixed plates 2. The two first fixing blocks 10 are used to lock the first rotating shaft onto the two fixed plates 2, and the first pulley 9 rotates around the first rotating shaft. The first fixing blocks 10 can be lock nuts.

[0033] Furthermore, a first adjusting column is provided at the lower part of the pulley bracket. The first adjusting column includes a first fixed column 11 and a first sliding column 12. The first sliding column 12 is slidably connected to the first fixed column 11. The first fixed column 11 is provided with a plurality of first through holes 30, and the first sliding column is provided with a plurality of second through holes 13 corresponding to the positions of the first through holes 30. A fixing member passes through the first through holes 30 and the second through holes 13 to connect and fix the first fixed column 11 and the first sliding column 12. The fixing member can be a locking bolt or a locking screw.

[0034] Specifically, the first fixed column 11 is made of steel profile and welded to the front flatbed trolley 28. The steel profile has first through holes 30 spaced evenly in the vertical direction. The first sliding column 12 is also made of steel profile, with second through holes 13 spaced evenly in the vertical direction. A second support plate is welded to the top of the first sliding column 12. A circular through hole is located in the center of the second support plate. A pin passes through this circular through hole, connecting the pulley bracket and the first fixed column 11. The pulley bracket can rotate freely around this pin.

[0035] The implementation of the line-laying component is as follows: The line-laying component includes a rotatable traction rope reel 21, which is fixed to the front flatbed 28 by a rope reel bracket 29. The traction rope reel 21 can rotate on the rope reel bracket 29. To prevent the traction rope reel 21 from continuing to rotate under inertial force, thereby causing the traction line 1 entering the traction component to be too loose, a locking component is provided on the side of the traction rope reel 21. The locking component is used to prevent the traction rope reel 21 from rotating under inertial force.

[0036] Furthermore, the locking assembly includes a locking cam 15 that rotates synchronously with the traction rope reel 21. A fixed locking plate 14 is provided on the side of the traction rope reel 21. The locking plate 14 is provided with a receiving area 20 for receiving the locking cam 15. A locking block 18 is provided on the side wall of the receiving area 20 along the rotation direction of the locking cam 15. When an external force is applied to the traction rope reel 21, it causes the locking cam 15 to squeeze and press the locking block 18, causing the locking cam 15 to rotate.

[0037] The receiving area 20 can be implemented as follows: a receiving groove with an opening facing the traction rope reel 21 is provided on the side wall of the locking plate 14. Alternatively, a receiving cavity is provided on the locking plate 14, and one end of the rotating shaft 19 passes through the locking plate 14 and extends into the receiving cavity to connect with the locking cam 15. Alternatively, a receiving through hole with openings at both ends is provided on the side wall of the locking plate 14.

[0038] Furthermore, the receiving area 20 is circular in shape, and a limiting groove 16 adapted to the locking block 18 is provided on the inner side wall of the circular receiving area 20. A compression spring 17 is fixedly installed in the limiting groove 16, and the other end of the compression spring 17 is fixedly connected to the locking block 18. In the natural state, the locking block 18 protrudes from the limiting groove 16 and extends into the receiving area 20. The locking block 18 needs to be squeezed to compress the compression spring 17, causing the locking block 18 to retract into the limiting groove 16, so that the locking cam 15 can rotate.

[0039] In a more preferred embodiment, the locking block 18 is frustum-shaped, and a plurality of locking blocks 18 are evenly arranged on the inner sidewall of the receiving area 20, and the shape formed by the plurality of locking blocks 18 is circular.

[0040] Specifically, one end of the rotating shaft 19 of the traction rope reel 21 is connected to the locking cam 15, and a locking plate 14 is fixedly installed on the rope reel bracket 29. The locking plate 14 remains stationary relative to the traction rope reel 21. The locking cam 15 is located in the circular receiving area 20. Several locking blocks 18 are arranged in a circular array on the inner wall of the circular receiving area 20 along the rotation direction of the locking cam 15. A limiting groove 16 adapted to the locking block 18 is provided on the inner wall of the circular receiving area 20. A compression spring 17 is fixedly installed in the limiting groove 16, and the other end of the compression spring 17 is fixedly connected to the locking block 18.

[0041] In a further embodiment, the supporting component includes a second adjusting column, which includes a second fixed column 22 and a second sliding column 24. The second sliding column 24 is slidably connected to the second fixed column 22. The second fixed column 22 is provided with a plurality of third through holes 23, and the second sliding column 24 is provided with a plurality of fourth through holes 25 corresponding to the positions of the third through holes 23. A fixing member passes through the third through holes 23 and the fourth through holes 25 to connect and fix the second fixed column 22 and the second sliding column 24. A guide roller 26 is provided at the top of the second adjusting column to guide the traction line 1 through. The fixing member can be a locking bolt or a locking screw.

[0042] The working process of the quick replacement device for the traction cable of the underground locomotive is as follows: Before replacing the traction cable 1, place the traction cable reel 21 on the reel bracket 29, loosen the two adjusting screws 4 on the pulley bracket, move the second pulley 7 upward, and pass the head of the new traction cable 1 between the second pulley 7 and the four first pulleys 9 and place it on the guide roller 26 of the rear flatbed trolley 27. Then tighten the two adjusting screws 4 to make the second pulley 7 and the first pulleys 9 press the traction cable 1 tightly. Then, adjust the hole positions of the adjusting columns on the front flatbed trolley 28 and the rear flatbed trolley 27 according to the required height of the traction cable 1, and adjust the height of the first adjusting column and the second adjusting column. During the replacement of the traction cable 1, one person pushes the front flatbed trolley 28 in front to release the traction cable 1 on the reel, one person pushes the rear flatbed trolley 27 at the same speed from behind, and two other people stand on the rear flatbed trolley 27 to fix the traction cable 1 to the cable hanger.

[0043] This invention can effectively reduce damage to the new traction line 1 during the replacement of the traction line 1, improve the installation quality of the traction line 1, and at the same time significantly increase the labor cost and work efficiency of replacing the traction line 1 underground, thus ensuring the safe and stable operation of the locomotive.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, substitutions, or variations made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A quick-change device for underground electric locomotive traction lines, characterized in that: It includes a line-laying component and a traction component. The traction component includes a pulley bracket. Two sets of first pulleys (9) are symmetrically arranged on the pulley bracket. A second pulley (7) is arranged between the two sets of first pulleys (9) and above the two sets of first pulleys (9). The traction line (1) released by the line-laying component passes between the two sets of first pulleys (9) and the second pulley (7) to tighten the traction line (1). The wire feeding component includes a rotatable traction rope reel (21), and a locking component is provided on the side of the traction rope reel (21) to prevent the traction rope reel (21) from rotating under the action of inertial force. The locking assembly includes a locking cam (15) that rotates synchronously with the traction cord reel (21). A fixed locking plate (14) is provided on the side of the traction cord reel (21). A receiving area (20) is provided on the locking plate (14) for receiving the locking cam (15). A locking block (18) is provided on the side wall of the receiving area (20) along the rotation direction of the locking cam (15). An external force acts on the traction cord reel (21) to drive the locking cam (15) to squeeze the locking block (18) from the outside, causing the locking cam (15) to rotate. The pulley bracket includes two symmetrically arranged fixed plates (2), the two fixed plates (2) are in the shape of a "+", the two sets of first pulleys are arranged between the horizontal parts of the two fixed plates (2), the second pulley (7) is arranged at the upper end of the vertical part of the two fixed plates (2), and the fixed plates (2) are provided with an adjustment component, the adjustment component adjusts the position of the second pulley (7) in the vertical direction; The vertical part of the fixed plate (2) is provided with an adjustment through hole (6) along the vertical direction. The second pulley (7) is connected to the fixed plate (2) through the second rotating shaft. The two ends of the second rotating shaft pass through the two adjustment through holes (6) and are limited by the second fixed block (8). The second fixed block (8) is connected to the adjustment component, and the adjustment component adjusts the position of the second fixed block (8) on the adjustment through hole (6).

2. The quick-change device for the traction line of the underground electric locomotive according to claim 1, characterized in that: The two fixed plates (2) are provided with a first support plate (3) on top. The adjustment assembly includes an adjustment screw (4). The lower part of the adjustment screw (4) passes through the first support plate (3) and is rotatably connected to the second fixed block (8). The adjustment screw (4) is threadedly connected to the first support plate (3). A buffer spring (5) is provided around the adjustment screw (4). One end of the buffer spring (5) is connected to the top of the adjustment screw (4), and the other end is connected to the upper surface of the first support plate (3).

3. The quick-change device for the traction line of the underground electric locomotive according to claim 2, characterized in that: The first pulley (9) is connected to the two fixed plates (2) through the first rotating shaft. The two ends of the first rotating shaft pass through the two fixed plates (2) and are limited by the first fixed block (10). The first pulley (9) is rotatably connected to the two fixed plates (2).

4. The quick-change device for the traction line of the underground electric locomotive according to any one of claims 1-3, characterized in that: The lower part of the pulley bracket is provided with a first adjusting column, which includes a first fixed column (11) and a first sliding column (12). The first sliding column (12) is slidably connected to the first fixed column (11). The first fixed column (11) is provided with a plurality of first through holes (30), and the first sliding column (12) is provided with a plurality of second through holes (13) corresponding to the positions of the first through holes (30). The fixing member passes through the first through holes (30) and the second through holes (13) to connect and fix the first fixed column (11) and the first sliding column (12).

5. The quick-change device for the traction line of the underground electric locomotive according to claim 1, characterized in that: The receiving area (20) is circular in shape. A limiting groove (16) adapted to the locking block (18) is provided on the inner side wall of the receiving area (20). A compression spring (17) is fixedly provided in the limiting groove (16). The other end of the compression spring (17) is fixedly connected to the locking block (18). In the natural state, the locking block (18) protrudes out of the limiting groove (16) and extends into the receiving area (20).

6. The quick-change device for the traction line of the underground electric locomotive according to claim 5, characterized in that: The locking block (18) is frustum-shaped, and several locking blocks (18) are evenly arranged on the inner sidewall of the receiving area (20). The shape formed by the several locking blocks (18) is circular.

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