Self-moving type winding device for high-voltage cable on fully mechanized coal mining face of underground coal mine

Abstract

The utility model discloses a coal mine underground fully mechanized coal mining face high-voltage cable self-moving type winding device, which belongs to the technical field of mining machinery and comprises a rack, a self-moving mechanism is mounted at the bottom of the rack and drives the rack to move in a roadway, a winding mechanism and a guide mechanism are mounted at the top of the rack, and the guide mechanism drives the rack to move in the roadway. The guiding mechanism drags a cable to the position above the rack and supplies the cable to the winding mechanism, and the winding mechanism forms continuous 8-shaped winding through front-back movement and self rotation. According to the cable winding device, the cable is wound and stored in the 8 shape, the whole process is automatically achieved, the problem that time and labor are wasted in manual winding is solved, and inductance effects generated by the cable can be counteracted. The whole device is provided with a self-moving mechanism, so that the whole winding device moves along the cable while winding, and the consumption caused by dragging the remote cable is avoided; and the phenomenon of slipping when the winch drags the winding device in a large-gradient roadway can be prevented, and the operation safety is greatly guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery technology, and in particular to a self-moving rewinding device for high-voltage cables in fully mechanized coal mining faces. Background Technology

[0002] There are many electrically driven devices in the fully mechanized mining face of a coal mine, which are powered by cables. Therefore, a large number of high and low voltage cables are laid out in the fully mechanized mining face. As the fully mechanized mining face advances, the cables will become redundant. In order to prevent accidents, it is necessary to wind up these redundant cables.

[0003] Typically, cables are wound sequentially in the same direction onto a take-up reel. However, because underground cables are energized during winding, and the winding density on the reel is very high, this hinders heat dissipation for high-voltage cables. Furthermore, the inductance generated during winding causes heat generation and increased cable resistance, leading to decreased transmission efficiency. This can range from affecting coal mining efficiency in fully mechanized mining faces to posing safety hazards and causing loss of life and property. The mining machinery used in underground fully mechanized mining faces is powerful, and its associated power cables are generally large in diameter and heavy. Previously, cable winding was done manually on a take-up flatbed cart, which was time-consuming and labor-intensive. Manual winding lacked standardized procedures, and improper winding could damage the cable, affecting production safety.

[0004] The power of existing underground cable winding devices is mostly provided by external winch traction. However, the roadways in underground fully mechanized mining faces are not always flat. The cable winding devices store a large amount of cable and are quite heavy. When the roadway slope is large, slippage is likely to occur, resulting in unnecessary losses. Complex roadway conditions can also affect the forward movement speed of the cable winding device, thereby affecting the overall work efficiency.

[0005] It is evident that existing underground cable winding devices in coal mines still have inconveniences and defects in terms of mechanism, method, and use, and need to be improved. Utility Model Content

[0006] The main purpose of this utility model is to provide a self-moving winding device for high-voltage cables in fully mechanized coal mining faces, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A self-moving high-voltage cable winding device for underground fully mechanized coal mining faces includes a frame. The frame's interior is equipped with a limiting component, a winding rod, and a limiting rod that winds the cable into an "∞" shape. A winding mechanism is installed at the top of the frame. This winding mechanism continuously winds the cable into the frame through forward and backward movement and synchronous rotation. A guiding mechanism is also provided at the top of the winding mechanism. The guiding mechanism includes a flat belt friction conveyor for dragging the cable and a sliding support rod that supports the cable to move forward and backward in coordination with the winding mechanism. A self-moving mechanism is installed at the bottom of the frame. This self-moving mechanism includes a pair of guide rails that are moved by a pair of pushing cylinders and are further supported by a pair of liftable support seats.

[0009] Preferably, the self-moving mechanism further includes several sets of track wheels, which are installed at the bottom of the frame and roll on the guide rail. Several locking rollers are also provided between the guide rail and the frame. The locking rollers are inserted into the grooves of the guide rail in pairs, and their tops are fixedly connected to the frame by square tubes.

[0010] Preferably, a push cylinder is fixedly connected to each end of the guide rail, and the other end of the push cylinder is fixedly connected to the bottom surface of the frame. The support bases are respectively located on the outside of the guide rail, and the top of the support bases is fixedly installed to the bottom of the frame by a pair of support cylinders.

[0011] Preferably, a pair of eccentric adjustment cylinders are installed at the front and rear ends of the frame, respectively. The eccentric adjustment cylinders are installed diagonally to both sides, and their output ends are connected to a flat plate.

[0012] Preferably, the frame includes a base plate, the limiting member is a semi-cylindrical structure, symmetrically installed at both ends of the base plate surface, the winding rod and the limiting rod are respectively disposed between the two limiting members, the winding rod is equipped with a buckle for fixing the cable, and the limiting rod restricts the position of the cable at the intersection of the cable “∞” winding, and each limiting rod is equipped with several cable hooks.

[0013] Preferably, brackets are fixedly installed at both ends of the top of the frame, and a pair of sliding guide rails and a synchronous belt are installed between the brackets. The synchronous belts are driven by low-speed hydraulic motors.

[0014] Preferably, the winding mechanism includes a gear set base and a central take-up wheel. The gear set base is mounted on a sliding guide rail and is fixedly connected to a synchronous belt on both sides. The central take-up wheel is installed inside the gear set base. Four transmission gear sets are symmetrically installed inside the gear set base. A ring of teeth is opened on the outer ring of the central take-up wheel to form a transmission connection with the transmission gear sets. A guide hole is provided on the inner wall of the central take-up wheel to guide the cable.

[0015] Preferably, the guiding mechanism includes a mounting bracket, which is bolted to four uprights, which are then fixedly welded to the top of the support.

[0016] Preferably, the flat belt friction conveyor mechanism is fixedly mounted on the mounting frame, and a guide groove is also installed on the surface of the mounting frame in front of the flat belt friction conveyor mechanism. Several rollers for auxiliary cable movement are also installed on the arc-shaped inner wall of the guide groove.

[0017] Preferably, a pair of sliding grooves are provided in the open area on the other side of the mounting bracket, and the two ends of the sliding support rod are mounted on the sliding grooves to slide. A cable threading ring is also installed in the middle of the sliding support rod to allow the cable to pass through.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In this invention, by setting limiting components, winding rods, and limiting rods on the frame, the cable is wound and stored in an "∞" shape, making the cable winding neater and easier to retrieve later. It is also equipped with a winding mechanism and a guiding mechanism to assist in the winding. The guiding mechanism is used to drag the cable, smoothly transporting it to the winding mechanism, while the winding mechanism uses a synchronous belt to drive its forward and backward movement and its own rotation to form a continuous "∞" shaped winding. The entire process is automated, solving the problem of time-consuming and labor-intensive manual winding, and also allowing the inductive effects generated by the cable to cancel each other out. Furthermore, the entire device is equipped with a self-moving mechanism. Using the cooperation of a support base and a pushing cylinder, the frame can be moved, allowing the entire winding device to move and wind along the cable, avoiding the wear and tear of dragging cables from a distance; it also prevents slippage when the winch pulls the winding device in steep roadways, greatly ensuring operational safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the self-moving mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the frame structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the winding mechanism structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the guiding mechanism structure of this utility model.

[0025] In the diagram: 1. Self-moving mechanism; 2. Frame; 3. Winding mechanism; 4. Guiding mechanism; 5. Pushing cylinder; 6. Guide rail; 7. Support base; 8. Pick roller; 9. Track wheel; 10. Support cylinder; 11. Adjustment cylinder; 12. Base plate; 13. Limiting component; 14. Winding rod; 15. Buckle; 16. Limiting rod; 17. Cable hook; 18. Bracket; 19. Low-speed hydraulic motor; 20. Synchronous belt; 21. Sliding guide rail; 22. Gear set base; 23. Transmission gear set; 24. Center winding wheel; 25. Guide hole; 26. Mounting frame; 27. Guide groove; 28. Flat belt friction conveyor mechanism; 29. ​​Threading ring; 30. Sliding support rod; 31. Slide groove; 32. Upright pole. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figure 1 As shown, a self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face includes a frame 2. A self-moving mechanism 1 is installed at the bottom of the frame 2, which drives the frame 2 to move in the roadway. A winding mechanism 3 and a guiding mechanism 4 are installed at the top of the frame 2. The guiding mechanism 4 pulls the cable above the frame 2 and supplies it to the winding mechanism 3. The winding mechanism 3 forms a continuous “∞” shaped winding by moving back and forth and rotating itself.

[0029] like Figure 2As shown, the self-moving mechanism 1 also includes several sets of track wheels 9, which are installed at the bottom of the frame 2 and roll on the guide rail 6. Several locking rollers 8 are also provided between the guide rail 6 and the frame 2, with the locking rollers 8 inserted in pairs into the grooves of the guide rail 6. Their tops are fixedly connected to the frame 2 via square tubes. These are used to lift the guide rail 6 when the support base 7 and support cylinder 10 support the frame 2. A pushing cylinder 5 is fixedly connected to each end of the guide rail 6, and the other end of the pushing cylinder 5 is fixedly connected to the bottom surface of the frame 2. The support bases 7 are respectively located on the outer side of the guide rail 6, and the tops of the support bases 7 are fixedly installed to the bottom of the frame 2 via a pair of support cylinders 10. When the support base 7 supports the frame 2, the pushing cylinders 5 push the guide rail 6 forward. A pair of adjusting cylinders 11 are also installed at the front and rear ends of the frame 2, respectively. The adjusting cylinders 11 are installed diagonally to both sides, and their output ends are connected to a flat plate. These are used to adjust the guide rail 6.

[0030] like Figure 3 As shown, the frame 2 includes a base plate 12. The limiting member 13 is a semi-cylindrical structure and is symmetrically installed at both ends of the surface of the base plate 12. The winding rod 14 and the limiting rod 16 are respectively set between the two limiting members 13. The winding rod 14 is equipped with a buckle 15 for fixing the cable. The limiting rod 16 restricts the position of the cable at the intersection of the "∞" shaped winding of the cable. Each limiting rod 16 is equipped with several cable hooks 17.

[0031] In this embodiment, brackets 18 are fixedly installed at both ends of the top of the frame 2, and a pair of sliding guide rails 21 and a synchronous belt 20 are installed between the brackets 18. The synchronous belt 20 is driven by a low-speed hydraulic motor 19.

[0032] like Figure 4 As shown, the winding mechanism 3 includes a gear base 22 and a central take-up wheel 24. The gear base 22 is mounted on a sliding guide rail 21 and is fixedly connected to the synchronous belt 20 on both sides. The central take-up wheel 24 is installed inside the gear base 22. Four transmission gear sets 23 are symmetrically installed inside the gear base 22. A ring of teeth is opened on the outer ring of the central take-up wheel 24 to form a transmission connection with the transmission gear sets 23. A guide hole 25 is provided on the inner wall of the central take-up wheel 24 to guide the cable.

[0033] like Figure 5As shown, the guiding mechanism 4 includes a mounting frame 26, which is bolted to four uprights 32, which are then fixedly welded to the top of the bracket 18. A flat belt friction conveyor mechanism 28 is fixedly mounted on the mounting frame 26. A guide groove 27 is installed on the surface of the mounting frame 26 in front of the flat belt friction conveyor mechanism 28. Several rollers for auxiliary cable movement are installed on the arc-shaped inner wall of the guide groove 27. A pair of sliding grooves 31 are provided in the open area on the other side of the mounting frame 26. The two ends of a sliding support rod 30 slide on the sliding grooves 31, and a cable threading ring 29 is installed in the middle of the sliding support rod 30 to allow the cable to pass through.

[0034] In practical use, the cable is removed from the tunnel hook and placed in the guide groove 27, and then into the flat belt friction conveyor mechanism 28. The friction between the flat belt friction conveyor mechanism 28 and the cable is used to pull the cable, while rollers installed on the inner wall of the guide groove 27 are used to reduce friction and make the cable pulling smoother. After being pulled, the cable passes through the cable threading ring 29 and then through the guide hole 25. At the same time, the control system starts the low-speed hydraulic motor 19 to drive the synchronous belt 20 to rotate back and forth, which in turn drives the gear set base 22 to move back and forth. The central winding wheel 24 is installed inside the gear set base 22 and is connected to the gear set base 22 via four transmission gear sets 23. The transmission gear sets 23 work synchronously to drive the central winding wheel 24 to reciprocate. Combined with the reciprocating motion of the gear set base 22 itself, the cable falling from the guide hole 25 forms a continuous "∞" shape and winds onto the limiting member 13, the winding rod 14, and the limiting rod 16. The cable is fixed by the buckles 15 on the winding rod 14 and the limiting rod 16, and the cable hook 17, respectively. During the cable winding process, the upper threading ring 29 can also slide along the slide groove 31 with the support of the sliding support rod 30, ensuring smooth winding of the lower winding mechanism 3.

[0035] When it is necessary to move the frame 2, firstly, the support cylinder 10 is activated to extend the support base 7 and support the bottom surface, thereby lifting the frame 2. Simultaneously, since the bottom of the frame 2 is equipped with a retaining wheel 8, and the end of the retaining wheel 8 engages the guide rail 6, the guide rail 6 is also lifted off the ground during the lifting process. Then, the pushing cylinder 5 is activated to extend the guide rail 6 forward or backward, allowing it to move approximately in a straight line under the limiting action of the retaining wheel 8. If deviation occurs, the adjustment cylinder 11 can be activated for fine-tuning left and right to ensure proper alignment between the guide rail 6 and the track wheel 9. Then, the support cylinder 10 is operated to slowly retract the support base 7, allowing the guide rail 6 to re-contact the ground and provide support. The frame 2 then rests on the guide rail 6 via the track wheel 9, allowing it to move. This process is repeated to complete the self-movement of the entire winding device.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face, characterized in that: The device includes a frame (2), inside which are provided a limiting member (13), a winding rod (14) and a limiting rod (16) to hold the cable in an "∞" shape. A winding mechanism (3) is installed on the top of the frame (2). The winding mechanism (3) continuously winds the cable into the frame (2) by moving back and forth and rotating synchronously. A guide mechanism (4) is also provided on the top of the winding mechanism (3). The guide mechanism (4) includes a flat belt friction conveying mechanism (28) for dragging the cable. The guide mechanism (4) also includes a sliding support rod (30). The sliding support rod (30) supports the cable to move back and forth and wind in coordination with the winding mechanism (3). A self-moving mechanism (1) is installed at the bottom of the frame (2). The self-moving mechanism (1) includes a pair of guide rails (6). The guide rails (6) are moved by a pair of pushing cylinders (5) and are supported by a pair of liftable support seats (7).

2. The self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face according to claim 1, characterized in that: The self-moving mechanism (1) also includes several sets of track wheels (9), which are installed at the bottom of the frame (2) and roll on the guide rail (6). Several chucks (8) are also provided between the guide rail (6) and the frame (2). The chucks (8) are inserted into the grooves of the guide rail (6) in pairs, and their tops are fixedly connected to the frame (2) by square tubes.

3. The self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face according to claim 2, characterized in that: A push cylinder (5) is fixedly connected to each end of the guide rail (6), and the other end of the push cylinder (5) is fixedly connected to the bottom surface of the frame (2). The support base (7) is located on the outside of the guide rail (6), and the top of the support base (7) is fixedly installed to the bottom of the frame (2) by a pair of support cylinders (10).

4. A self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face according to claim 3, characterized in that: The front and rear ends of the frame (2) are each equipped with a pair of adjustment cylinders (11). The adjustment cylinders (11) are installed diagonally to both sides, and their output ends are connected to a flat plate.

5. A self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face according to claim 4, characterized in that: The frame (2) includes a base plate (12). The limiting member (13) is a semi-cylindrical structure and is symmetrically installed at both ends of the surface of the base plate (12). The winding rod (14) and the limiting rod (16) are respectively set between the two limiting members (13). The winding rod (14) is equipped with a buckle (15) for fixing the cable. The limiting rod (16) restricts the position of the cable at the intersection of the "∞" shaped winding of the cable. The limiting rod (16) is equipped with several cable hooks (17).

6. A self-moving rewinding device for high-voltage cables in a fully mechanized coal mine underground mining face according to claim 5, characterized in that: The top two ends of the frame (2) are fixedly installed with brackets (18), and a pair of sliding guide rails (21) and a synchronous belt (20) are installed between the brackets (18). The synchronous belt (20) is driven by a low-speed hydraulic motor (19).

7. A self-moving rewinding device for high-voltage cables in a fully mechanized coal mine underground mining face according to claim 6, characterized in that: The winding mechanism (3) includes a gear base (22) and a central take-up wheel (24). The gear base (22) is mounted on a sliding guide rail (21) and is fixedly connected to a synchronous belt (20) on both sides. The central take-up wheel (24) is installed inside the gear base (22). Four transmission gear sets (23) are symmetrically installed inside the gear base (22). A ring of teeth is opened on the outer ring of the central take-up wheel (24) to form a transmission connection with the transmission gear sets (23). A guide hole (25) is provided on the inner wall of the central take-up wheel (24) to guide the cable.

8. A self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face according to claim 7, characterized in that: The guiding mechanism (4) includes a mounting bracket (26) which is bolted to four uprights (32), which are fixedly welded to the top of the bracket (18).

9. A self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face according to claim 8, characterized in that: The flat belt friction conveyor mechanism (28) is fixedly installed on the mounting frame (26). A guide groove (27) is also installed on the surface of the mounting frame (26) in front of the flat belt friction conveyor mechanism (28). Several rollers for auxiliary cable movement are also installed on the arc-shaped inner wall of the guide groove (27).

10. A self-moving rewinding device for high-voltage cables in a fully mechanized coal mining face according to claim 9, characterized in that: On the other side of the mounting bracket (26), there is a pair of sliding grooves (31). The two ends of the sliding support rod (30) are mounted on the sliding grooves (31) and slide. A cable threading ring (29) is also installed in the middle of the sliding support rod (30) to allow the cable to pass through.

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