Underground coal mine cable hanging device

Abstract

The utility model relates to the technical field of underground cable installation, in particular to an underground coal mine cable hanging device. Comprising a pair of screws; one ends of the two screw rods are fixedly connected; sleeve frames are installed on the outer rings of the two screw rods in a sliding mode. Adjusting nuts which are in threaded fit with the screw rods are rotationally mounted at the ends, close to each other, of the two sleeve frames; rotating columns are rotationally mounted at the ends, away from each other, of the two sleeve frames; a plurality of locking screws used for fixing the rotating column are installed on the outer rings of the ends, away from each other, of the two sleeve frames in a threaded mode. The end, away from the sleeve frame, of the rotary column is in bolted connection with a hook. The cable is hung through the hanging device, so that the cable can be refitted to the top wall and the side wall of the roadway, and the hanging of the cable is facilitated, and the subsequent disassembly work is facilitated; therefore, the number of workers is reduced, the labor force of the workers is greatly saved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of underground cable installation technology, specifically an underground coal mine cable hanging device. Background Technology

[0002] Underground coal mining operations typically employ large-scale integrated mining equipment, which usually requires power transmission via cables. As the mining equipment advances and moves, it also needs to be moved continuously until the entire working face is completed.

[0003] To facilitate the passage of equipment and personnel, cables are hung on the side walls of the tunnel and suspended from the top of the tunnel. When organizing and fixing cables in the tunnel, multiple workers are required to work together. First, the laser beam of the laser guide is used to mark the positions where the hooks need to be fixed on the side walls or top walls of the tunnel. Then, the hooks are fixed to the marked positions. Finally, the workers hang the cables one by one.

[0004] Because the cables are suspended at a high position, adjusting the cables is quite difficult. Furthermore, dismantling the suspension points after the mining work is completed is also very challenging, greatly consuming the manpower of the staff and seriously affecting work efficiency.

[0005] Therefore, a cable suspension device for underground coal mines is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A cable hanging device for underground coal mines, characterized in that it includes a pair of screws; one end of the two screws is fixedly connected; a sleeve is slidably installed on the outer ring of each of the two screws; an adjusting nut that threadedly engages with the screw is rotatably installed on the close end of each of the two sleeves; a rotating column is rotatably installed on the far end of each of the two sleeves; multiple locking screws for fixing the rotating column are threaded on the outer ring of the far end of the two sleeves; and a hook is bolted to the far end of the rotating column.

[0008] Preferably, a horizontal plate is slidably mounted on the outer ring of the screw, and the horizontal plate is located on the side of the adjusting nut away from the sleeve; a clamping nut capable of pressing the horizontal plate is threaded onto the outer ring of the screw; a U-shaped bracket is provided on the top surface of the end of the horizontal plate away from the screw.

[0009] Preferably, a horizontal plate can also be slidably installed inside the sleeve; a ring seat is bolted between the top and bottom surfaces of the horizontal plate near the sleeve; arc-shaped clamps are bolted to both sides of the ring seat; the arc-shaped clamps are located on the outside of the sleeve, and the two ends of the arc-shaped clamps can press against the outer wall of the sleeve.

[0010] Preferably, the sleeve has a countersunk through hole at the middle of one end near the hook; the rotating column is rotatably disposed in the countersunk through hole; the outer ring of the rotating column near the sleeve has an annular groove; and a pair of half rings are rotatably installed on the outer ring of the annular groove.

[0011] Preferably, a stop bar is hinged to the opening of the hook and the end closer to the rotating column; a slot is provided at the opening of the hook and the end away from the rotating column.

[0012] Preferably, the stop bar has positioning holes at one end near the slot and at the middle of the slot; a positioning pin is inserted into the positioning hole.

[0013] Preferably, the outer wall of the end of the positioning pin is provided with a through groove; an elastic element is inserted into the inside of the through groove.

[0014] The advantages of this utility model are:

[0015] 1. The underground coal mine cable hanging device of this utility model, by setting up a screw sleeve; adjusting nut, rotating column, locking screw, hook and connecting plate; and hanging the cable through the hanging device, can not only modify the cable to the top wall and side wall of the roadway, but also facilitate the hanging of the cable and the subsequent disassembly work; thereby reducing the number of workers, greatly saving the labor force and improving work efficiency.

[0016] 2. The underground coal mine cable hanging device of this utility model is provided by setting a horizontal plate, a clamping nut and a bracket; the horizontal plate is clamped and fixed by the clamping nut and the adjusting nut; the bracket is locked and fixed to the horizontal plate by bolts; and the cable is hung by the brackets set on both sides of the screw, thereby effectively improving the cable hanging capacity and avoiding the entanglement between multiple cables.

[0017] 3. The underground coal mine cable hanging device of this utility model is provided by setting up a ring seat, an arc-shaped clamp, a horizontal plate and a bracket; the ring seat and the arc-shaped clamp are used to clamp and fix the sleeve, and then the horizontal plate is fixed and locked. The bracket is locked and fixed to the horizontal plate with bolts; the cable is hung by multiple additional brackets set on the outside of the sleeve, thereby further improving the cable hanging capacity and avoiding the entanglement between multiple cables. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of one half of the hanging device in this utility model;

[0021] Figure 3 This is a structural diagram of the sleeve near the hook in this utility model;

[0022] Figure 4 This is an exploded view of the sleeve near the hook in this utility model;

[0023] Figure 5 This is a schematic diagram of two methods for fixing the horizontal plate in this utility model;

[0024] Figure 6 This is an exploded view of the ring seat and the arc-shaped clamping plate in this utility model;

[0025] Figure 7 This is a schematic diagram of the positioning pin and elastic element in this utility model.

[0026] In the diagram: 1. Screw; 2. Sleeve; 3. Adjusting nut; 4. Rotary column; 5. Locking screw; 6. Hook; 7. Connecting plate; 8. Horizontal plate; 9. Pressure nut; 10. Bracket; 11. Ring seat; 12. Arc-shaped clamp; 13. Ring groove; 14. Half ring; 15. Stop bar; 16. Slot; 17. Positioning pin; 18. Through groove; 19. Elastic element; 20. Pressure plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] like Figures 1 to 4As shown, an underground coal mine cable hanging device includes a pair of screws 1; one end of the two screws 1 is fixedly connected; a sleeve 2 is slidably installed on the outer ring of each of the two screws 1; an adjusting nut 3 that is threadedly engaged with the screw 1 is rotatably installed on the close end of each of the two sleeves 2; a rotating column 4 is rotatably installed on the far end of each of the two sleeves 2; a plurality of locking screws 5 for fixing the rotating column 4 are threaded on the outer ring of the far end of each of the two sleeves 2; a hook 6 is bolted to the far end of the rotating column 4.

[0029] In some embodiments, a connecting disc 7 is fixedly connected to one end of the screw 1, and multiple through holes are provided around the connecting disc 7; two connecting discs 7 are fixedly connected by multiple bolts passing through the through holes.

[0030] The two ends of the sleeve 2 are sliding rings that fit around the outer ring of the screw 1; multiple connecting rods are fixed between the two sliding rings by bolts; the inner ring of the sliding ring at the end of the sleeve 2 near the connecting plate 7 is rotatably connected to the adjusting nut 3 through a bearing; the sliding ring at the end of the sleeve 2 near the connecting plate 7 has multiple screw holes, and the locking screw 5 is installed in the screw holes by threads and can press against the outer ring of the rotating column 4;

[0031] When cables need to be suspended from the top of the tunnel, there is a mesh on the top of the tunnel, which makes it easier to use the suspension device of this application.

[0032] First, rotate the adjusting nut 3 so that it rotates along the screw 1, causing the sleeve 2 to slide along the screw 1, controlling the distance between the two hooks 6, thereby controlling the distance between the suspended cable and the top plate mesh, which makes it easier to adjust all parts of the cable to the same height;

[0033] Next, hook 6 is hung on the mesh of the top plate, so that the hanging device hangs down naturally, and the laser beam of the laser guide is used to neatly hang multiple hanging devices.

[0034] Then, lift the cable and hook it onto one of the hooks at the bottom;

[0035] Once all parts of the cable are hooked onto the hook 6 at the bottom of the suspension device, the cable follows the same direction as the tunnel, meaning the cable is not twisted. At this point, the hook 6 will rotate to the appropriate angle position as the cable is pushed.

[0036] Finally, use a wrench to tighten the locking screws 5 at both ends of the sleeve 2, so that the multiple locking screws 5 press against the outer wall of the rotating column 4, fixing and locking the rotating column 4 and the hook 6; thereby preventing the hook 6 from rotating and causing the cable to twist.

[0037] When the cable needs to be hung on the side wall of the tunnel, loosen the bolts on the connecting plate 7 between the two screws 1 to separate the fixing between the two connecting plates 7; then, fix one connecting plate 7 to the side wall of the tunnel with bolts, so that half of the hanging device is horizontally fixed to the side wall of the tunnel; rotate the adjusting nut 3 so that the adjusting nut 3 rotates along the screw 1, causing the sleeve 2 to slide along the screw 1, controlling the distance between the adjusting hook 6 and the side wall of the tunnel; then rotate the hook 6 so that the opening of the hook 6 rotates to the vertical upward; then, use a wrench to tighten the locking screws 5 at both ends of the sleeve 2, so that the multiple locking screws 5 press against the outer wall of the rotating column 4, fixing and locking the rotating column 4 and the hook 6; finally, lift the cable and hang it on the hook 6.

[0038] By using a hanging device to install cables, it is possible to relocate cables to the top and side walls of the tunnel, which not only facilitates cable installation but also makes subsequent dismantling easier. This reduces the number of workers required, greatly saves labor, and improves work efficiency.

[0039] like Figures 1 to 6 As shown, a horizontal plate 8 is slidably mounted on the outer ring of the screw 1, and the horizontal plate 8 is located on the side of the adjusting nut 3 away from the sleeve 2; a clamping nut 9 that can clamp the horizontal plate 8 is threadedly mounted on the outer ring of the screw 1; a U-shaped bracket 10 is provided on the top surface of the end of the horizontal plate 8 away from the screw 1.

[0040] In some embodiments, the end of the horizontal plate 8 near the screw 1 is a ring that can slide along the screw 1, and a straight groove is provided in the middle of the horizontal plate 8; the bracket 10 has an overall U-shaped structure and a bottom plate, the width of which is greater than the width of the straight groove; the bracket 10 is fixedly installed on the horizontal plate 8 by bolts passing through the straight groove, and the bracket 10 can be adjusted in position along the horizontal plate 8.

[0041] When the suspension device is suspended on the top surface of the tunnel and there are many cables to be suspended, the two horizontal plates 8 are placed on the screw rod 1, and the horizontal plates 8 are rotated to both sides of the screw rod 1. Then, the clamping nut 9 is rotated and the adjusting nut 3 is used to clamp and fix the horizontal plates 8. After that, the bracket 10 is pushed to slide along the horizontal plate 8, the distance between the bracket 10 and the screw rod 1 is adjusted, and then the bracket 10 and the horizontal plate 8 are locked and fixed with bolts. The additional brackets 10 on both sides of the screw rod 1 are used to hang the cables, which effectively improves the cable hanging capacity and avoids the tangling of multiple cables.

[0042] like Figures 1 to 6As shown, a horizontal plate 8 can also be slidably installed inside the sleeve 2; a ring seat 11 is bolted between the top and bottom surfaces of the horizontal plate 8 near the sleeve 2; an arc-shaped clamping plate 12 is bolted to both sides of the ring seat 11; the arc-shaped clamping plate 12 is located on the outside of the sleeve 2, and both ends of the arc-shaped clamping plate 12 can press against the outer wall of the sleeve 2.

[0043] In some embodiments, the ring seat 11 is divided into an upper ring plate and a lower ring plate, and the lower ring plate has a convex ring in the middle, which matches the inner ring of the horizontal plate 8; the upper ring plate and the lower ring plate are fixed by bolts, and the upper ring plate and the lower ring plate clamp and fix the ring of the horizontal plate 8.

[0044] The arc-shaped clamp 12 has an overall arc-shaped structure, and the middle part of the arc-shaped clamp 12 has an arc-shaped protrusion. The arc-shaped protrusion has the same shape as the two connecting rods of the sleeve 2, so that the arc-shaped protrusion of the arc-shaped clamp 12 can be inserted into the inner side of the sleeve 2 from the outside of the sleeve 2 and between the two connecting rods of the sleeve 2. The arc-shaped protrusion of the arc-shaped clamp 12 is fixed to the ring seat 11 by screws passing through it. The connecting rods of the sleeve 2 are pressed by the two ends of the arc-shaped clamp 12 on both sides, and the ring seat 11 is fixed inside the sleeve 2, thereby fixing the horizontal plate 8 to the outside of the sleeve 2.

[0045] When the suspension device is suspended on the top surface of the tunnel and there are many cables to be suspended, the horizontal plate 8 can be installed inside the sleeve 2, so that the end of the horizontal plate 8 away from the ring passes through the two connecting rods of the sleeve 2 and extends to the outside of the sleeve 2; then the sleeve 2 is clamped and fixed by the ring seat 11 and the arc-shaped clamp 12, thereby fixing and locking the horizontal plate 8. Finally, the bracket 10 is pushed to slide along the horizontal plate 8, the distance between the bracket 10 and the screw 1 is adjusted, and then the bracket 10 is locked and fixed to the horizontal plate 8 by bolts; the multiple brackets 10 additionally set on the outside of the sleeve 2 are used to hang cables, thereby further improving the cable hanging capacity and avoiding the tangling of multiple cables.

[0046] like Figures 3 to 4 As shown, the sleeve 2 has a countersunk through hole in the middle of one end near the hook 6; the rotating column 4 is rotatably disposed in the countersunk through hole; the outer ring of the rotating column 4 near the sleeve 2 has an annular groove 13; a pair of half rings 14 are rotatably installed on the outer ring of the annular groove 13.

[0047] In some embodiments, the semi-circular ring 14 is a semi-circular ring with a convex cross-section. The two ends of the two semi-circular rings 14 are locked and fixed by bolts and joined together to form a complete ring. A pressure plate 20 is bolted to the outer ring of the countersunk through hole of the sleeve 2 to restrict the rotating column 4 and the semi-circular ring 14 within the countersunk through hole.

[0048] The two semi-rings 14 are fixedly installed into the annular groove 13 of the outer ring of the rotating column 4, thereby rotating the rotating column 4 into the countersunk through hole of the sleeve 2. The pressure plate 20 blocks and restricts the rotating column 4 from detaching from the countersunk through hole of the sleeve 2, thus realizing the stable rotation of the rotating column 4 and the hook 6.

[0049] like Figure 3 , Figure 4 and Figure 7 As shown, a stop bar 15 is hinged to the opening of the hook 6 and the end closer to the rotating post 4; a slot 16 is provided at the opening of the hook 6 and the end away from the rotating post 4.

[0050] In some embodiments, when the hook 6 at the top of the hanging device is hung on the mesh on the roof of the tunnel, the stop bar 15 is rotated outward to open the opening of the hook 6. After the hook 6 is hung on the mesh, the stop bar 15 is reset so that the end of the stop bar 15 is inserted into the slot 16 of the hook 6, thereby preventing the hook 6 from falling off the mesh on the roof.

[0051] When the cable is hung on the hook 6 at the bottom of the hanging device, rotate the stop bar 15 outward to open the opening of the hook 6, hang the cable inside the hook 6, and then reset the stop bar 15 so that the end of the stop bar 15 is engaged in the slot 16 of the hook 6, thereby preventing the cable from falling out of the hook 6.

[0052] like Figure 3 , Figure 4 and Figure 7 As shown, positioning holes are provided at one end of the stop bar 15 near the slot 16 and at the middle of the slot 16; a positioning pin 17 is inserted into the inside of the positioning hole.

[0053] Furthermore, when the end of the stop bar 15 is inserted into the slot 16 of the hook 6, the positioning hole on the stop bar 15 is aligned with the positioning hole on the slot 16. Then, the positioning pin 17 is passed through the positioning hole to fix and lock the stop bar 15 in the slot 16, thereby preventing the cable from falling off due to accidental rotation of the stop bar 15.

[0054] like Figure 3 , Figure 4 and Figure 7 As shown, a through groove 18 is provided on the outer wall of the end of the positioning pin 17; an elastic element 19 is inserted into the inside of the through groove 18;

[0055] Furthermore, one end of the positioning pin 17 is a circular baffle, and the outer ring of the other end is provided with a through groove 18; both ends of the through groove 18 are provided with arc-shaped chamfers.

[0056] The elastic element 19 is U-shaped, with both ends of the elastic element 19 bent outwards, and the middle of the elastic element 19 is recessed to match the shape of the through groove 18.

[0057] When the positioning pin 17 passes through the positioning hole and locks the stop bar 15 in the slot 16, press the two ends of the elastic member 19 to compress the two ends of the elastic member 19 together. Then, release the elastic member 19 after it passes through the through slot 18 of the positioning pin 17, so that the elastic member 19 is reset and fully engaged in the through slot 18. The part of the elastic member 19 that protrudes from the through slot 18 blocks the sliding of the positioning pin 17, thereby preventing the positioning pin 17 from falling off accidentally and improving the safety of cable hanging.

[0058] Working principle: When the cable needs to be suspended to the top of the tunnel, firstly, rotate the adjusting nut 3 so that the adjusting nut 3 rotates along the screw 1, which drives the sleeve 2 to slide along the screw 1, controls and adjusts the distance between the two hooks 6, thereby controlling and adjusting the distance between the suspended cable and the roof mesh, so as to make it easier to adjust all parts of the cable to the same height.

[0059] Next, rotate the stop bar 15 outwards towards the hook 6 to open the opening of the hook 6, hang one hook 6 on the mesh of the top plate, reset the stop bar 15 so that the end of the stop bar 15 is inserted into the slot 16 of the hook 6, then pass the positioning pin 17 through the positioning hole and press the two ends of the elastic member 19 so that the two ends of the elastic member 19 are close together and compressed, then release the elastic member 19 after passing it through the through slot 18 of the positioning pin 17 so that the elastic member 19 is reset and fully engaged in the through slot 18. The part of the elastic member 19 protruding from the through slot 18 blocks the sliding of the positioning pin 17, so that the hanging device hangs down naturally, and the laser beam of the laser guide is used to neatly hang multiple hanging devices.

[0060] Then, open the bottom hook 6, lift the cable, and hook it onto one of the bottom hooks 6;

[0061] Finally, use a wrench to tighten the locking screws 5 at both ends of the sleeve 2, so that the multiple locking screws 5 press against the outer wall of the rotating column 4, fixing and locking the rotating column 4 and the hook 6; thereby preventing the hook 6 from rotating and causing the cable to twist.

[0062] Furthermore, depending on the number of cables, the number of horizontal plates 8 and brackets 10 is increased appropriately, and the installation position is controlled. Two horizontal plates 8 are fitted onto the screw rod 1, and the horizontal plates 8 are rotated to both sides of the screw rod 1. Then, the clamping nut 9 is rotated, and the horizontal plates 8 are clamped and fixed in conjunction with the adjusting nut 3. Next, the bracket 10 is pushed to slide along the horizontal plate 8, the distance between the bracket 10 and the screw rod 1 is adjusted, and then the bracket 10 is locked and fixed to the horizontal plate 8 using bolts. Using the additional brackets 10 on both sides of the screw rod 1 to hang cables effectively improves the cable hanging capacity. Additionally, the sleeve 2 is clamped and fixed using the ring seat 11 and the arc-shaped clamping plate 12, thereby fixing and locking the horizontal plate 8. Finally, the bracket 10 is pushed to slide along the horizontal plate 8, the distance between the bracket 10 and the screw rod 1 is adjusted, and then the bracket 10 is locked and fixed to the horizontal plate 8 using bolts. Using the multiple additional brackets 10 on the outside of the sleeve 2 to hang cables further improves the cable hanging capacity.

[0063] When the cable needs to be hung on the side wall of the tunnel, loosen the bolts on the connecting plate 7 between the two screws 1 to separate the fixing between the two connecting plates 7; then, fix one connecting plate 7 to the side wall of the tunnel with bolts, so that half of the hanging device is horizontally fixed to the side wall of the tunnel; rotate the adjusting nut 3 so that the adjusting nut 3 rotates along the screw 1, causing the sleeve 2 to slide along the screw 1, controlling the distance between the adjusting hook 6 and the side wall of the tunnel; then rotate the hook 6 so that the opening of the hook 6 rotates to the vertical upward; then, use a wrench to tighten the locking screws 5 at both ends of the sleeve 2, so that the multiple locking screws 5 press against the outer wall of the rotating column 4, fixing and locking the rotating column 4 and the hook 6; finally, lift the cable and hang it on the hook 6.

[0064] By using a hanging device to install cables, it is possible to relocate cables to the top and side walls of the tunnel, which not only facilitates cable installation but also makes subsequent dismantling easier. This reduces the number of workers required, greatly saves labor, and improves work efficiency.

[0065] 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 claimed utility model.

Claims

1. A cable suspension device for underground coal mines, characterized in that: It includes a pair of screws; one end of the two screws is fixedly connected; a sleeve is slidably mounted on the outer ring of each of the two screws; an adjusting nut that is threadedly engaged with the screw is rotatably mounted on the close end of each of the two sleeves; a rotating post is rotatably mounted on the far end of each of the two sleeves; a plurality of locking screws for fixing the rotating post are threaded on the outer ring of the far end of the two sleeves; and a hook is bolted to the far end of the rotating post.

2. The underground coal mine cable suspension device according to claim 1, characterized in that: A horizontal plate is slidably mounted on the outer ring of the screw, and the horizontal plate is located on the side of the adjusting nut away from the sleeve; a clamping nut that can press the horizontal plate is threaded onto the outer ring of the screw; a U-shaped bracket is provided on the top surface of the end of the horizontal plate away from the screw.

3. The underground coal mine cable suspension device according to claim 2, characterized in that: A horizontal plate can also be slidably installed inside the sleeve; a ring seat is bolted between the top and bottom surfaces of the horizontal plate near the sleeve; arc-shaped clamps are bolted to both sides of the ring seat; the arc-shaped clamps are located on the outside of the sleeve, and the two ends of the arc-shaped clamps can press against the outer wall of the sleeve.

4. The underground coal mine cable suspension device according to claim 1, characterized in that: The sleeve has a countersunk through hole at the middle of one end near the hook; the rotating column is rotatably disposed in the countersunk through hole; the outer ring of the rotating column near the sleeve has an annular groove; a pair of half rings are rotatably installed on the outer ring of the annular groove.

5. The underground coal mine cable suspension device according to claim 1, characterized in that: A stop bar is hinged to the opening of the hook, near the end of the rotating column; a slot is provided at the opening of the hook, away from the end of the rotating column.

6. The underground coal mine cable suspension device according to claim 5, characterized in that: The stop bar has positioning holes at one end near the slot and in the middle of the slot; a positioning pin is inserted into the positioning hole.

7. A cable suspension device for underground coal mines according to claim 6, characterized in that: The outer wall of the end of the positioning pin is provided with a through groove; an elastic element is inserted into the inside of the through groove.

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