Cable unwinding device for mining machinery

Abstract

The invention discloses a cable unwinding device for mining machinery, and relates to the technical field of mining machinery auxiliary equipment.The cable unwinding device comprises a plurality of cable boxes and a driving box, the cable boxes are fixed to the outer wall of the rear side of the mining machinery side by side, and cable reels are rotationally installed in inner cavities of the cable boxes; the center of the front side of the cable box is fixedly connected with a guide cantilever, cables are guided and wound and unwound through the guide cantilever on the front side, the number of the cable boxes can be set according to the number of the cables used by the corresponding mining machinery, and complex cables can be arranged and fixed. The cable winding and unwinding device ensures tidy winding and unwinding of the cable in the moving process of mining machinery, avoids mutual winding, reduces pulling of the cable, reduces abrasion of the equipment cable, prolongs the service life of the cable, and reduces maintenance cost of the mining machinery.

Description

Technical Field

[0001] The invention relates to the technical field of mining machinery auxiliary equipment, and in particular to a cable unwinding device for mining machinery. Background Art

[0002] Mining machinery is a machine directly used for mineral mining and enrichment. Most of the mechanical operations are inseparable from electricity. In addition, due to geographical restrictions, a large number of cables are required to connect to the power supply. As the operation progresses, the mining machinery needs to move along the working surface, and the cables need to be unwound and reeled during movement.

[0003] Chinese patent (application number: 202410199296.8) cable unwinding device, including: base; frame; cable drum; fixing mechanism, including frame and adjustment assembly, frame connected to cable drum, at least part of adjustment assembly is located in frame, so as to form a fixed space for fixing cable end around frame; adjustment assembly has a release state moving toward the side away from cable end; buffer assembly, including buffer structure and clamping part, buffer structure is rotatably connected to base, and cable clamping space is formed between clamping part and cable drum; transmission mechanism, buffer structure drives first operating mechanism to move through transmission mechanism; in the process of unwinding cable, buffer structure rotates relative to base, transmission mechanism drives first operating mechanism to move, so as to trigger adjustment assembly to be in release state through first operating mechanism. The present invention solves the problem that cable winding mechanism in the prior art needs manual operation when unwinding cable end. The existing cable unwinding device can be easily pulled down due to the uneven ground and the inertia of the cable when unwinding. In addition, different working parts of some mining machinery use multiple sets of cables for power supply. Multiple sets of separate cable winding devices are used to arrange different cables, which will affect the cable arrangement efficiency. The scattered and entangled cables will cause damage to the cables and increase the maintenance cost. Therefore, we propose a cable unwinding device for mining machinery. Summary of the invention

[0004] The purpose of the present invention is to solve the problems that the existing cable unwinding device may be easily pulled down due to the uneven ground and the inertia of the pulling wire when unwinding the wire, and different working parts of some mining machinery may use multiple groups of cables for power supply. Multiple sets of separate cable winding devices are used to arrange different cables, which will affect the cable arrangement efficiency, and the scattered and entangled cables will cause cable damage and increased maintenance costs. The present invention provides a cable unwinding device for mining machinery.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A cable unwinding device for mining machinery comprises a plurality of cable boxes and a drive box, wherein the plurality of cable boxes are fixed side by side on the outer wall of the rear side of the mining machinery, the inner cavities of the plurality of cable boxes are rotatably installed with cable reels, and a reset coil spring is arranged on the rotating shaft of the cable reels, the front center of the cable box is fixedly connected with a guide cantilever, and a cable winding and unwinding mechanism is arranged in the guide cantilever, the front side of the cable box corresponds to the inner wall opening of the guide cantilever, a cable line is wound around the cable reel, and the inner end of the cable line is electrically connected to the electrical equipment of the mining machinery, the outer end of the cable on the cable reel passes through the cable winding and unwinding mechanism in the guide cantilever and is connected to a power supply, the cable winding and unwinding mechanisms of the plurality of guide cantilevers are connected for transmission through a fixed universal coupling, the drive box is fixedly connected to one side of the rear end of the mining machinery, a linkage mechanism is arranged on the outer side of the drive box, and the linkage mechanism is transmission-connected to the outermost cable winding and unwinding mechanism through a telescopic universal coupling.

[0006] Furthermore, the cable reeling and winding mechanism comprises an active clamping groove wheel and a driven clamping groove wheel, and the active clamping groove wheel and the driven clamping groove wheel are symmetrically mounted for rotation up and down and are close to one side of the cable box on the inner wall of the guide cantilever, and the outer end of the cable sleeved on the cable reel passes through the front opening of the cable box and then passes through the active clamping groove wheel and the driven clamping groove wheel to extend forward to connect to the power supply, and the outer sides of the active clamping groove wheel and the driven clamping groove wheel are fixedly connected with clamping groove wheel synchronous gears, and the outer clamping groove wheel synchronous gears of the active clamping groove wheel and the driven clamping groove wheel are meshed with each other, and the outer side of the clamping groove wheel synchronous gear at the outer end of the active clamping groove wheel is fixedly connected with a universal joint connecting flange, and both ends of the fixed universal coupling and the telescopic universal coupling are matched with the universal joint connecting flange.

[0007] Furthermore, a power supply socket is fixedly connected to the upper end of the cable box, and the power supply socket is electrically connected to the inner circle of the cable on the cable reel through a collector ring, and the upper end of the power supply socket is electrically connected to the electrical equipment of the mining machinery.

[0008] Furthermore, a reel guide wheel is rotatably installed on the inner wall of the cable box corresponding to the position of the active clamping groove wheel, and two delivery guide wheels are symmetrically fixedly connected to the inner wall of the front end of the guide cantilever. The outer end of the cable on the cable reel passes around the reel guide wheel and enters between the active clamping groove wheel and the driven clamping groove wheel, and the outer end of the cable on the cable reel passes between the two delivery guide wheels and extends outward.

[0009] Furthermore, the linkage mechanism includes a linkage pressure arm, a fixed swivel seat is fixedly connected to the center of the outer wall of the drive box, the linkage pressure arm is rotatably installed on the outside of the fixed swivel seat through a bearing, a linkage roller is rotatably installed on the lower end of the linkage pressure arm, and a power input shaft is rotatably installed in the inner cavity of the cable box corresponding to the center of the fixed swivel seat. The inner cavity of the linkage pressure arm is hollow, and the outer end of the power input shaft passes through the linkage pressure arm. The outer end of the rotating shaft of the linkage roller and the outer end of the rotating shaft of the power input shaft are connected in the inner cavity of the linkage pressure arm through a synchronous chain transmission mechanism, and the inner cavity of the drive box is rotatably connected to the power output shaft corresponding to the position of the active clamping groove wheel, and the power output shaft is connected to the power input shaft through a synchronous gear transmission, and the power output shaft passes through the drive box toward one end of the cable box and is connected to the outer end of the telescopic universal coupling.

[0010] Furthermore, a friction roller surface is sleeved and fixed on the outer wall of the linkage roller facing the cable box, and anti-slip convex patterns are arranged on the outer side of the friction roller surface.

[0011] Furthermore, the upper end of the linkage pressure arm is fixedly connected to a matching slide rail, the upper edge of the outer wall of the drive box is fixedly connected to an adjustment slide rail, a slider bolt is slidably connected inside the adjustment slide rail, and the screw rod of the slider bolt passes through the center of the matching slide rail and is threadedly connected to a fastening nut.

[0012] Furthermore, a plurality of pairs of cleaning and wiping sponge blocks are symmetrically fixedly connected to the middle part of the inner cavity of the guide cantilever, and the inner ends of the plurality of pairs of cleaning and wiping sponge blocks are inclined toward one side of the cable box, a water storage tank is fixedly connected to the front side of the cable box, and a distribution drip seat is fixedly connected to the upper outer wall of the guide cantilever, the bottom of the water storage tank is connected to the distribution drip seat through a pipe, and drip holes are provided at the bottom of the distribution drip seat corresponding to the positions of the plurality of cleaning and wiping sponge blocks.

[0013] Furthermore, two fixed swivel seats are symmetrically fixedly connected to the inner wall of the cable box between the cable reel and the reel guide wheel, and the power input shaft is fixedly connected to opposite sides of the two fixed swivel seats.

[0014] Furthermore, a plurality of the cable boxes are fixedly connected to a fixed hanging plate on the back side, wherein the fixed hanging plate is a U-shaped clamp seat with an opening facing downward, and two screw holes are symmetrically provided on both sides of the rear wall of the fixed hanging plate, and the rear screw holes of the fixed hanging plate are threadedly connected with fastening bolts.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention provides a plurality of cable boxes, which are directly mounted on the mining machinery. A driving box is provided, and the driving box drives the cable reeling and unreeling mechanisms on the plurality of cable boxes to work through a linkage mechanism as the mining machinery moves. The cables are guided and unreeled through the guide cantilever on the front side. The number of cable boxes can be set according to the number of cables used by the corresponding mining machinery, and the complex cables can be arranged and fixed to ensure the neat reeling and unreeling of the cables during the movement of the mining machinery, avoid mutual entanglement, reduce pulling on the cables, reduce wear on the equipment cables, increase the service life of the cables, and reduce the maintenance cost of the mining machinery.

[0016] 2. The present invention sets an active clamping groove wheel, and the active clamping groove wheel is connected to a fixed universal coupling through a universal joint connecting flange, so that multiple active clamping groove wheels can be driven to rotate synchronously. Through the set clamping groove wheel synchronous gear, the clamping groove wheel synchronous gear can drive the driven clamping groove wheel and the active clamping groove wheel to rotate in the opposite direction, so that the cable clamped and fixed by the active clamping groove wheel and the driven clamping groove wheel is transported, and the cable is wound and unwound as the mining machinery moves. When unwinding, the cable reel is driven to rotate by overcoming the elastic force of the reset coil spring, so that the reset coil spring of the cable reel rotating shaft accumulates momentum. When winding, the cable is transported inward, and the cable reel can wind up the cable under the reset elastic force of the reset coil spring. The structure is simple and reliable, and the smooth winding and unwinding of the cable is guaranteed.

[0017] 3. The present invention provides a linkage pressure arm, which can press and fix the linkage roller toward the outer side of the moving wheel of the mining machinery, so that the linkage roller can keep synchronous reverse rotation with the moving wheel of the mining machinery when the mining machinery moves, and then rotate again through the transmission of the power input shaft and the power output shaft. Due to the synchronous chain transmission mechanism and the synchronous transmission, the rotation direction of the active pinch groove wheel is the same as the rotation direction of the moving wheel, so that the active pinch groove wheel and the driven pinch groove wheel can be wound and unwound synchronously with the rotation of the moving wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a stereogram of the present invention; Figure 2 is a side sectional view of the present invention; Figure 3 It is a front view cross-sectional view of the drive box and the linkage mechanism in the present invention; Figure 4 It is a partial structural diagram of the cleaning wiping block in the present invention.

[0019] : 1. cable box; 2. fixed hanging plate; 3. fastening bolt; 4. cable reel; 5. reel guide wheel; 6. guide cantilever; 7. active pinch groove wheel; 8. delivery guide wheel; 9. fixed universal joint; 10. telescopic universal joint; 11. drive box; 12. linkage pressure arm; 13. linkage roller; 14. power supply socket; 15. friction roller surface; 16. water storage tank; 17. distribution drip seat; 18. cleaning sponge block; 19. fixed swivel seat; 20. power input shaft; 21. synchronous chain transmission mechanism; 22. power output shaft; 23. adjustment slide rail; 24. slider bolt; 25. matching slide rail; 26. driven pinch groove wheel; 27. pinch groove wheel synchronous gear. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. See also Figure 1 - Figure 4 The present invention provides a cable unwinding device for mining machinery, comprising a plurality of cable boxes 1 and a driving box 11. The plurality of cable boxes 1 are fixed side by side on the outer wall of the rear side of the mining machinery. The inner cavities of the plurality of cable boxes 1 are rotatably installed with cable reels 4, and a reset coil spring is arranged on the rotating shaft of the cable reel 4. The front center of the cable box 1 is fixedly connected with a guide cantilever 6, and a cable unwinding mechanism is arranged in the guide cantilever 6. The front side of the cable box 1 corresponds to the inner wall opening of the guide cantilever 6. A cable is wound around the cable reel 4, and the inner end of the cable is electrically connected to the electrical equipment of the mining machinery. The outer end of the cable on the cable reel 4 passes through the cable unwinding mechanism in the guide cantilever 6 and is connected to a power supply. The cable unwinding mechanisms of the plurality of guide cantilevers 6 are connected for transmission through a fixed universal coupling 9. A linkage mechanism is arranged on the outer side of the driving box 11, and the linkage mechanism is transmission-connected to the outermost cable unwinding mechanism through a telescopic universal coupling 10.

[0021] In the present embodiment, preferably, the cable reeling and unwinding mechanism comprises an active pinching and feeding groove wheel 7 and a driven pinching and feeding groove wheel 26, which are symmetrically mounted for rotation up and down and on the inner wall of the guide cantilever 6 close to one side of the cable box 1, and the outer end of the cable sleeved on the cable reel 4 passes through the front opening of the cable box 1 and then passes through the active pinching and feeding groove wheel 7 and the driven pinching and feeding groove wheel 26 to extend forward to connect to the power supply, and the outer sides of the active pinching and feeding groove wheel 7 and the driven pinching and feeding groove wheel 26 are fixedly connected with a pinching and feeding groove wheel synchronous gear 27, and the pinching and feeding groove wheel synchronous gears 27 on the outer sides of the active pinching and feeding groove wheel 7 and the driven pinching and feeding groove wheel 26 are meshed with each other, and the outer side of the pinching and feeding groove wheel synchronous gear 27 at the outer end of the active pinching and feeding groove wheel 7 is fixedly connected with a universal joint connecting flange, and both ends of the fixed universal coupling 9 and the telescopic universal coupling 10 are connected to the universal joint The flanges match; through the active clamping and feeding groove wheel 7, the active clamping and feeding groove wheel 7 is connected to the fixed universal coupling 9 through the universal joint connection flange, so that multiple active clamping and feeding groove wheels 7 are synchronously driven and rotated, and through the clamping and feeding groove wheel synchronous gear 27, the clamping and feeding groove wheel synchronous gear 27 can drive the driven clamping and feeding groove wheel 26 to rotate in the opposite direction with the active clamping and feeding groove wheel 7, so that the active clamping and feeding groove wheel 7 and the driven clamping and feeding groove wheel 26 clamped and fixed cable are transported, and the cable is wound and unwound as the mining machinery moves. When unwinding, the cable reel 4 is driven to rotate by overcoming the elastic force of the reset coil spring, so that the reset coil spring of the rotating shaft of the cable reel 4 accumulates potential. When winding, the cable is transported inward, and the cable reel 4 can roll up the cable under the reset elastic force of the reset coil spring. The structure is simple and reliable, and the smooth winding and release of the cable is guaranteed.

[0022] In this embodiment, preferably, a power supply socket 14 is fixedly connected to the upper end of the cable box 1, and the power supply socket 14 is electrically connected to the inner circle of the cable on the cable reel 4 through a collector ring, and the upper end of the power supply socket 14 is electrically connected to the electrical equipment of the mining machinery; through the setting of the power supply socket 14, the power supply socket 14 can facilitate the power connection of the electrical equipment of the mining machinery.

[0023] In the present embodiment, preferably, a reel guide wheel 5 is rotatably installed on the inner wall of the cable box 1 corresponding to the position of the active clamping groove wheel 7, and two delivery guide wheels 8 are symmetrically fixedly connected to the inner wall of the front end of the guide cantilever 6. The outer end of the cable on the cable reel 4 passes around the reel guide wheel 5 and enters between the active clamping groove wheel 7 and the driven clamping groove wheel 26, and the outer end of the cable on the cable reel 4 passes through between the two delivery guide wheels 8 and extends outward; through the set reel guide wheel 5, the reel guide wheel 5 guides the cable unwound from the cable reel 4 to ensure that the cable avoids friction with the front opening of the cable box 1, and through the set two delivery guide wheels 8, the two delivery guide wheels 8 guide and fix the unwound cable, so that the cable can pass through the guide cantilever 6.

[0024] In the present embodiment, preferably, the linkage mechanism includes a linkage pressure arm 12, a fixed swivel seat 19 is fixedly connected to the center of the outer wall of the driving box 11, the linkage pressure arm 12 is rotatably installed on the outside of the fixed swivel seat 19 through a bearing, and a linkage roller 13 is rotatably installed at the lower end of the linkage pressure arm 12. A power input shaft 20 is rotatably installed in the inner cavity of the cable box 1 corresponding to the center of the fixed swivel seat 19. The inner cavity of the linkage pressure arm 12 is hollow, and the outer end of the power input shaft 20 passes through the linkage pressure arm 12. The outer end of the rotating shaft of the linkage roller 13 and the outer end of the rotating shaft of the power input shaft 20 are connected in the inner cavity of the linkage pressure arm 12 through a synchronous chain transmission mechanism 21. The inner cavity of the driving box 11 is rotatably connected to a power output shaft 22 corresponding to the position of the active clamping groove wheel 7, and the power output shaft 22 It is connected to the power input shaft 20 through synchronous gear transmission, and the power output shaft 22 passes through the drive box 11 at one end toward the cable box 1 and is connected to the outer end of the telescopic universal coupling 10; through the arranged linkage pressure arm 12, the linkage pressure arm 12 can press and fix the linkage roller 13 toward the outer side of the moving wheel of the mining machinery, so that the linkage roller 13 can keep synchronous reverse rotation with the moving wheel of the mining machinery when the mining machinery moves, and then rotate again through the transmission of the power input shaft 20 and the power output shaft 22. Due to the synchronous chain transmission mechanism 21 and the synchronous transmission, the rotation direction of the active clamping groove wheel 7 is the same as the rotation direction of the moving wheel, so that the active clamping groove wheel 7 and the driven clamping groove wheel 26 can be wound and unwound synchronously with the rotation of the moving wheel.

[0025] In the present embodiment, preferably, a friction roller surface 15 is sleeved and fixed on the outer wall of the linkage roller 13 facing the cable box 1, and the outer side of the friction roller surface 15 is provided with anti-slip convex grooves; the outer diameter of the friction roller surface 15 is the same as the groove bottom radius of the active clamping groove wheel 7 and the delivery guide wheel 8, so that when the linkage roller 13 rotates one circle, the active clamping groove wheel 7 and the driven clamping groove wheel 26 can convey the cable with the same circumference as the outer wall of the linkage roller 13, thereby maintaining synchronous transportation of the cables.

[0026] In this embodiment, preferably, the upper end of the linkage pressure arm 12 is fixedly connected with a matching slide rail 25, and the upper edge of the outer wall of the driving box 11 is fixedly connected with an adjusting slide rail 23, and a slider bolt 24 is slidably connected inside the adjusting slide rail 23, and the screw of the slider bolt 24 passes through the center of the matching slide rail 25 and is threadedly connected with a fastening nut; through the setting of the matching slide rail 25, the matching slide rail 25 can push the bottom of the linkage pressure arm 12 to tilt as the adjusting slide rail 23 moves back and forth, so that the lower end of the linkage pressure arm 12 The linkage roller 13 is tilted toward the moving wheel of the mining machinery, thereby pressing and fixing the linkage roller 13 on the surface of the moving wheel of the mining machinery, which is convenient for the docking of the linkage mechanism and the moving wheel of the mining machinery.

[0027] In the present embodiment, preferably, a plurality of pairs of cleaning and wiping sponge blocks 18 are symmetrically fixedly connected to the middle of the inner cavity of the guide cantilever 6, and the inner ends of the plurality of pairs of cleaning and wiping sponge blocks 18 are tilted toward one side of the cable box 1, a water storage tank 16 is fixedly connected to the front side of the cable box 1, and a distribution drip seat 17 is fixedly connected to the upper outer wall of the guide cantilever 6, the bottom of the water storage tank 16 is connected to the distribution drip seat 17 through a pipeline, and the bottom of the distribution drip seat 17 is provided with drip holes corresponding to the positions of the plurality of cleaning and wiping sponge blocks 18; by setting up the plurality of cleaning and wiping sponge blocks 18, A plurality of cleaning sponge blocks 18 can be pressed against the outer wall of the cable at the middle part of the guide cantilever 6, so that the mud on the cable sheath can be wiped off when the cable is reeled in, thereby reducing the mud entering the cable box 1 and effectively preventing the mud from entering the equipment shaft and jamming the equipment, thereby increasing the service life of the equipment. Through the provision of a water storage tank 16 and a distribution drip seat 17, the water storage tank 16 and the distribution drip seat 17 can continuously drip water for the cleaning sponge block 18 to keep the cleaning sponge block 18 moist, so that the cleaning sponge block 18 can soften the dry mud on the cable sheath and improve the decontamination effect.

[0028] In the present embodiment, preferably, two fixed swivel seats 19 are symmetrically fixedly connected to the inner wall of the cable box 1 corresponding to the cable reel 4 and the reel guide wheel 5, and the two fixed swivel seats 19 are fixedly connected to the power input shaft 20 on opposite sides; through the provision of the fixed swivel seat 19 and the power input shaft 20, the fixed swivel seat 19 and the power input shaft 20 can guide the winding of the cable while wiping the outer wall of the wound cable, thereby reducing the residual moisture on the cable sheath.

[0029] In the present embodiment, preferably, a plurality of cable boxes 1 are fixedly connected to a fixed hanging plate 2 on the back side, the fixed hanging plate 2 is a U-shaped clamp seat with an opening facing downward, and two screw holes are symmetrically provided on both sides of the rear wall of the fixed hanging plate 2, and the inner threads of the rear screw holes of the fixed hanging plate 2 are connected with fastening bolts 3; through the set fixed hanging plate 2, the fixed hanging plate 2 can be mounted on the upper edge of the rear shell of the mining machinery, and then the inner wall of the rear shell is tightened by the fastening bolts 3 to achieve the fixation of the cable box 1. At the same time, when the rear side of the rear shell of the mining machinery is closed and inconvenient to fix, the L-shaped plug plate can be welded to cooperate with the fixed hanging plate 2, so as to facilitate the fixation and disassembly of the cable box 1.

[0030] The working principle and use process of the present invention are as follows: when the device is used, multiple cable boxes 1 are set up, and the multiple cable boxes 1 are directly installed on the mining machinery. Through the set drive box 11, the drive box 11 drives the cable winding and unwinding mechanism on the multiple cable boxes 1 to work through the linkage mechanism as the mining machinery moves. The cables are guided and unwound through the guide cantilever 6 on the front side. The number of cable boxes 1 can be set according to the number of cables used by the corresponding mining machinery. The complex cables can be arranged and fixed to ensure the neat winding and release of the cables during the movement of the mining machinery, avoid mutual entanglement, reduce the pulling of the cables, reduce the wear of the equipment cables, increase the service life of the cables, and reduce the maintenance cost of the mining machinery.

[0031] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable unwinding device for mining machinery, characterized in that: The invention comprises a plurality of cable boxes (1) and a drive box (11); the inner cavity of the cable box (1) is provided with a cable reel (4); a return coil spring is provided on the rotating shaft of the cable reel (4); the front center of the cable box (1) is fixedly connected to a guide cantilever (6); a cable retracting and unreeling mechanism is provided in the guide cantilever (6); The front side of the cable box (1) corresponds to the inner wall opening of the guide cantilever (6); a cable is wound around the cable reel (4); the outer end of the cable on the cable reel (4) passes through the cable reeling and unreeling mechanism in the guide cantilever (6) and is connected to a power source; the cable reeling and unreeling mechanism of the guide cantilever (6) operates through a fixed universal coupling (9); a linkage mechanism is arranged on the outer side of the drive box (11); the linkage mechanism is transmission-connected to the outermost cable reeling and unreeling mechanism through a telescopic universal coupling (10).

2. A cable unwinding device for mining machinery according to claim 1, characterized in that: The cable reeling and unwinding mechanism comprises an active clamping and feeding groove wheel (7) and a driven clamping and feeding groove wheel (26), wherein the active clamping and feeding groove wheel (7) and the driven clamping and feeding groove wheel (26) are symmetrically arranged on the inner wall of the guide cantilever (6) close to the cable box (1) at the upper and lower sides, and the outer end of the cable sleeved on the cable reel (4) passes through the front opening of the cable box (1) and then passes through the active clamping and feeding groove wheel (7) and the driven clamping and feeding groove wheel (26) to extend forward to connect to the power supply, and the active clamping and feeding groove wheel (7) ) and the driven pinch groove wheel (26) are fixedly connected to the outer sides of the pinch groove wheel (27), and the pinch groove wheel synchronization gears (27) on the outer sides of the active pinch groove wheel (7) and the driven pinch groove wheel (26) are meshed with each other, and the outer sides of the pinch groove wheel synchronization gear (27) at the outer end of the active pinch groove wheel (7) are fixedly connected to the outer sides of the pinch groove wheel synchronization gear (27) with a universal joint connection flange, and both ends of the fixed universal joint (9) and the telescopic universal joint (10) are matched with the universal joint connection flange.

3. The cable unwinding device for mining machinery according to claim 1, characterized in that: The upper end of the cable box (1) is fixedly connected to a power supply socket (14), and the power supply socket (14) is electrically connected to the inner ring of the cable on the cable reel (4) via a collector ring, and the upper end of the power supply socket (14) is electrically connected to electrical equipment of mining machinery.

4. The cable unwinding device for mining machinery according to claim 1, characterized in that: A reel guide wheel (5) is rotatably mounted on the inner wall of the cable box (1) corresponding to the position of the active clamping groove wheel (7), and two delivery guide wheels (8) are symmetrically fixedly connected to the inner wall of the front end of the guide cantilever (6). The outer end of the cable on the cable reel (4) passes around the reel guide wheel (5) and enters between the active clamping groove wheel (7) and the driven clamping groove wheel (26), and the outer end of the cable on the cable reel (4) passes between the two delivery guide wheels (8) and extends outward.

5. The cable unwinding device for mining machinery according to claim 1, characterized in that: The linkage mechanism comprises a linkage pressure arm (12), the center of the outer wall of the drive box (11) is fixedly connected to a fixed swivel seat (19), the linkage pressure arm (12) is rotatably mounted on the outside of the fixed swivel seat (19) through a bearing, a linkage roller (13) is rotatably mounted on the lower end of the linkage pressure arm (12), a power input shaft (20) is rotatably mounted in the inner cavity of the cable box (1) corresponding to the center of the fixed swivel seat (19), the inner cavity of the linkage pressure arm (12) is hollow, and the outer end of the power input shaft (20) passes through the linkage pressure arm (12), The outer end of the rotating shaft of the linkage roller (13) and the outer end of the rotating shaft of the power input shaft (20) are connected in transmission via a synchronous chain transmission mechanism (21) in the inner cavity of the linkage pressure arm (12); the inner cavity of the drive box (11) is rotatably connected to a power output shaft (22) corresponding to the position of the active clamping groove wheel (7); the power output shaft (22) is connected in transmission via a synchronous gear transmission to the power input shaft (20); the power output shaft (22) passes through the drive box (11) at one end facing the cable box (1) and is connected to the outer end of the telescopic universal coupling (10).

6. A cable unwinding device for mining machinery according to claim 5, characterized in that: A friction roller surface (15) is sleeved and fixedly mounted on the outer wall of the linkage roller (13) on the side facing the cable box (1), and anti-slip convex patterns are arranged on the outer side of the friction roller surface (15).

7. A cable unwinding device for mining machinery according to claim 5, characterized in that: The upper end of the linkage pressure arm (12) is fixedly connected to a matching slide rail (25), the upper edge of the outer wall of the drive box (11) is fixedly connected to an adjustment slide rail (23), a slider bolt (24) is slidably connected inside the adjustment slide rail (23), and a screw rod of the slider bolt (24) passes through the center of the matching slide rail (25) and is threadedly connected to a fastening nut.

8. The cable unwinding device for mining machinery according to claim 1, characterized in that: A plurality of pairs of cleaning and wiping sponge blocks (18) are symmetrically fixedly connected to the middle of the inner cavity of the guide cantilever (6), and the inner ends of the plurality of pairs of cleaning and wiping sponge blocks (18) are tilted toward one side of the cable box (1). A water storage tank (16) is fixedly connected to the front side of the cable box (1), and a distribution drip seat (17) is fixedly connected to the upper outer wall of the guide cantilever (6). The bottom of the water storage tank (16) is connected to the distribution drip seat (17) via a pipeline, and drip holes are provided at the bottom of the distribution drip seat (17) corresponding to the positions of the plurality of cleaning and wiping sponge blocks (18).

9. The cable unwinding device for mining machinery according to claim 1, characterized in that: Two fixed rotating seats (19) are symmetrically fixedly connected to the inner wall of the cable box (1) between the cable reel (4) and the reel guide wheel (5) in an upper and lower manner, and a power input shaft (20) is fixedly connected to opposite sides of the two fixed rotating seats (19).

10. A cable unwinding device for mining machinery according to claim 1, characterized in that: A plurality of cable boxes (1) are fixedly connected to a fixed hanging plate (2) on the back side, the fixed hanging plate (2) being a U-shaped clamp seat with an opening facing downward, and two screw holes are symmetrically provided on both sides of the rear wall of the fixed hanging plate (2), and fastening bolts (3) are threadedly connected to the inner screw holes on the rear side of the fixed hanging plate (2).

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