A mine tunneling machine cable drag device

Abstract

The application discloses a mine tunneling machine cable dragging device and belongs to the technical field of tunneling machine cable dragging equipment. The device comprises a cable, a plurality of slide rails connected in a first and last order and a plurality of groups of hanging trolleys arranged along the slide rails. The upper end of the slide rail is arrayed with a hanging piece, and the slide rail is installed on the top of a roadway through the hanging piece. A plurality of groups of the slide rails are connected in sequence to form a track extending along the roadway. The bottom end of the hanging trolleys is provided with a self-rotating protective cable clamping mechanism. The sidewall of the hanging trolleys is provided with a locking mechanism. One end of the cable is connected with a tunneling machine and secondary transport, and the other end of the cable sequentially passes through a plurality of groups of locking mechanisms. The mine tunneling machine cable dragging device can bend the cable in an arc shape, disperse the bending pressure of the cable and avoid the bending angle of the cable being too large.

Description

Technical Field

[0001] This invention belongs to the technical field of tunneling machine cable dragging equipment, specifically referring to a cable dragging device for a mining tunneling machine. Background Technology

[0002] During operation, the tunneling machine needs to be connected to the electrical control box via cables. After the tunneling machine excavates gravel or coal, it is transferred to a belt conveyor via a transfer machine. The belt conveyor then transports the gravel or coal out. A lot of cables need to be stored between the tunneling machine and the electrical control box. During operation, the cables move forward with the tunneling machine.

[0003] In existing technologies, cable monorails are commonly used to facilitate cable dragging. A guide rail is installed at the top of the tunnel, and a slider adapted to the guide rail is mounted on the cable monorail. The cable monorail advances along the longwall face by moving the slider along the guide rail. After the cable is hoisted, the cable is moved by the forward movement of the tunneling machine, and the cable pulls the cable monorail. When the tunneling machine reverses, the cable's own weight pulls the cable monorail backward. During cable dragging, gravity causes the cable to sag naturally. If the support structure is poorly designed or the cable's bending radius is too small, the cable may bend. Repeated or excessive bending may stretch or compress the insulation layer, leading to cracks or breaks, thus reducing the cable's insulation performance. Furthermore, the tunneling machine's forward movement, directly pulling the slider by the cable itself, can damage the cable and shorten its lifespan. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a cable dragging device for mining tunneling machines, which can bend the cable in an arc shape, disperse the bending pressure of the cable, and avoid excessive bending angle of the cable.

[0005] The technical solution adopted by this invention is as follows: This invention provides a cable dragging device for a mining tunneling machine, comprising a cable, multiple sections of slide rails connected end-to-end, and multiple sets of slidable trolleys along the slide rails. Suspension components are arrayed at the upper end of the slide rails, and the slide rails are installed on the top of the roadway via the suspension components. Several sections of the slide rails are connected in sequence to form a track extending along the roadway. A self-rotating protective cable clamping mechanism is provided at the bottom end of each trolley. A locking mechanism is provided on the side wall of each trolley. One end of the cable is connected to the tunneling machine, and the other end of the cable passes through multiple sets of locking mechanisms in sequence. When the tunneling machine advances, the cable pulls the multiple sets of trolleys to slide in sequence, thereby moving the cable. The self-rotating protective cable clamping mechanism... The cable clamping mechanism includes a hanger and a distributed bending clamping assembly. The hanger is rotatably mounted at the bottom end of the hanging trolley, and the distributed bending clamping assembly is located at the bottom end of the hanger. An inner protective assembly is coaxially mounted inside the distributed bending clamping assembly. The distributed bending clamping assembly includes a bending spring and sliding clamping assemblies symmetrically arranged on both sides of the bending spring. The sliding clamping assembly includes a cage-type slide and a cable clamp coaxially mounted inside the cage-type slide. The cable clamp is slidably connected to the cage-type slide. A self-adjusting spring is provided between the cable clamp and the cage-type slide. The cable clamp clamps and fixes the cable. When the bending spring bends to adapt to the bending angle of the cable, the self-adjusting spring automatically fine-tunes to adapt to the length change caused by the bending of the self-adjusting spring.

[0006] As a further improvement to this solution, a bending limiting component is provided between the sliding clamping components. The bending limiting component limits the bending degree of the bending spring. A dispersion spring is provided on the side of the sliding clamping component away from the bending spring. The elastic force of the dispersion spring is greater than that of the bending spring. When the cable bends due to its own weight, the cable drives the bending spring to bend. When it reaches the limiting position, the cable's own weight drives the dispersion spring to bend. Through the cooperation of the dispersion spring and the bending spring, the bending of the cable is dispersed, and the bending at one point is dispersed into multiple points of bending, avoiding excessive local bending pressure on the cable.

[0007] The bending limiting assembly includes a slidingly connected outer plate and an inner sliding plate. One end of the outer plate is rotatably connected to a cage-like slide on one side of the bending spring, and one end of the inner sliding plate is rotatably connected to a cage-like slide on the other side of the bending spring. The outer plate has a groove on the side near the inner sliding plate, and the inner sliding plate slides within the groove. The outer plate has a through-hole for positioning screws, which are equidistantly distributed along the length of the groove. Positioning screws are inserted into the positioning screw holes. By inserting the positioning screws into different positioning screw holes, the bending degree of the bending spring can be adjusted and limited.

[0008] In this solution, the cage-type slide includes a slide rod and fixed rings at both ends of the slide rod. The slide rods are arranged in a circumferential array around the fixed rings. The sidewall of the cable clamp is provided with guide sleeves at equal intervals along the circumference. The guide sleeves are slidably connected to the slide rods.

[0009] The inner protective assembly includes a protective ring, a flexible protective sleeve, a sliding end ring, and a tension spring. The flexible protective sleeve is arranged through the front and back, with its middle portion axially inserted into the bending spring. Both ends of the flexible protective sleeve extend out of the bending spring. The protective ring is sleeved on the outside of the flexible protective sleeve and is equidistantly arranged along the length of the flexible protective sleeve. The protective ring is located between the flexible protective sleeve and the bending spring. The sliding end ring is located at both ends of the flexible protective sleeve and is slidably connected to the cage-type slide. The tension spring is located between the sliding end ring and the cage-type slide.

[0010] The tension spring keeps the flexible protective sleeve taut through the sliding end ring. The protective ring creates a gap between the flexible protective sleeve and the bending spring. The protective ring, in conjunction with the tension spring and the sliding end ring, prevents the cable from being squeezed and damaged when the bending spring bends.

[0011] As a further improvement to this solution, the dispersion spring is provided with a dispersion protection component, which includes a dispersion ring and a dispersion protection sleeve. The dispersion protection sleeve is arranged through the front and back. One end of the dispersion protection sleeve is fixed to the cage-type slide, and the other end of the dispersion protection sleeve passes through the dispersion spring axially and extends out of the dispersion spring. The dispersion ring is sleeved on the outside of the dispersion protection sleeve and is arranged at equal intervals along the length direction of the dispersion protection sleeve. The dispersion ring is located between the dispersion protection sleeve and the dispersion spring.

[0012] Preferably, the flexible protective sleeve sidewall and the dispersed protective sleeve sidewall are respectively provided with elastic supports along the length direction. The elastic supports can be bent and deformed, and can avoid wrinkling and squeezing of the flexible protective sleeve or the dispersed protective sleeve. The elastic supports can be made of stainless steel metal strips.

[0013] Optionally, the flexible protective sleeve is made of nylon material, which has good elasticity and wear resistance and can withstand greater tension and pressure, and the protective ring is made of rubber material.

[0014] Preferably, the cable clamp includes a sliding ring, a clamping sleeve, a screwing sleeve, and a clamping claw. The sliding ring is slidably disposed coaxially within a cage-type slide. One end of the clamping sleeve is rotatably disposed coaxially within the sliding ring. The end face of the clamping sleeve is provided with a swing groove, which is distributed in an array around the circumference of the clamping sleeve. A swing shaft is provided within the swing groove. One end of the clamping claw is rotatably connected to the swing shaft. A torsion spring is provided on the inner wall of the clamping claw and the swing groove. The screwing sleeve is coaxially disposed on the outer side of the clamping sleeve and is threadedly connected to the clamping sleeve. A push block is provided on the inner wall of the end of the screwing sleeve away from the sliding ring. The guide sleeve is equidistantly disposed on the outer wall of the sliding ring.

[0015] The torsion spring pushes the clamping claw to rotate away from the axis of the clamping sleeve, so that the clamping claw is always in contact with the push block. When the screwing sleeve moves closer to the sliding ring, the screwing sleeve drives the push block to move closer to the clamping claw and pushes the clamping claw to rotate inward, thus clamping and fixing the cable.

[0016] Preferably, the clamping sleeve is rotatably disposed inside the sliding ring, and the clamping sleeve is rotatably connected to the sliding ring, which can play a role in preventing the cable from twisting.

[0017] More specifically, the locking mechanism includes a fixed post, a pressure plate, and a locking sleeve. The fixed post is located on the side wall of the hanging trolley, and a rope-passing hole is provided through the side wall of the fixed post. The cable passes through the rope-passing hole. The pressure plate is located at the end of the fixed post. The locking sleeve is coaxially sleeved on the fixed post. The fixed post and the locking sleeve are threaded together. The rope-passing hole is located between the pressure plate and the locking sleeve. By screwing the locking sleeve closer to the pressure plate, the cable can be quickly fixed to the fixed post, thus achieving rapid locking of the cable.

[0018] As a further improvement to this solution, a counterweight is slidably threaded through the cable between two adjacent sets of locking mechanisms. The counterweight can straighten the cable and prevent it from getting tangled on the cable surface.

[0019] Furthermore, the hanger includes a top plate, fixed hangers, and swing hangers. The top plate is rotatably mounted on the bottom end of the hanging trolley. The fixed hangers are symmetrically mounted on the bottom wall of the top plate. The swing hangers correspond one-to-one with the fixed hangers. One end of the swing hanger is rotatably connected to the bottom end of the fixed hanger, and the other end of the swing hanger is rotatably connected to the cage-type carriage. The swing hangers cause the cage-type carriage to swing as the bending spring bends, so as to adapt to the bending of the bending spring.

[0020] In this solution, the suspended trolley includes a frame and pulleys. The frame is U-shaped, the pulleys are rotatably mounted on two opposite inner walls of the frame, and the frame is slidably secured to a slide rail.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows:

[0022] 1. By installing a self-rotating protective cable clamping mechanism below the hanging trolley, the bending spring provides elastic support when the cable bends due to its own weight, thus preventing the cable from bending excessively.

[0023] 2. A bending limit component and a dispersion spring are installed. The bending limit component limits the bending degree of the bending spring, and the limit position is adjustable. When the cable bends due to its own weight, the cable drives the bending spring to bend to the limit position. Then, the cable's own weight drives the dispersion spring to bend. Through the cooperation of the dispersion spring and the bending spring, the bending of the cable is dispersed, and the bending at one point is dispersed into multiple points, avoiding excessive local bending pressure on the cable.

[0024] 3. An internal protective component is installed inside the bending spring. The tension spring keeps the flexible protective sleeve in a taut state through the sliding end ring. The protective ring creates a gap between the flexible protective sleeve and the bending spring. Through the cooperation of the protective ring, the tension spring, and the sliding end ring, the cable is prevented from being squeezed and damaged when the bending spring bends.

[0025] 4. By combining elastic support with internal and distributed protection components, the cable is provided with multi-directional support and protection, preventing damage when bent.

[0026] 5. When the tunneling machine moves forward, multiple sets of suspension pulleys are pulled by cables to slide in sequence, and the cable is moved by the suspension pulleys, avoiding the direct pulling of the suspension pulleys by the cable.

[0027] 6. The cable clamp can quickly center and clamp the cable, and the locking mechanism makes it easy to quickly lock the cable. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a cable dragging device for a mining tunneling machine provided by the present invention;

[0029] Figure 2 A schematic diagram of the combined structure of the hanging trolley, the self-rotating protective cable clamping mechanism, the locking mechanism, and the cable provided by the present invention;

[0030] Figure 3 A schematic diagram of the combined structure of the hanging trolley, the self-rotating protective cable clamping mechanism and the locking mechanism provided by the present invention;

[0031] Figure 4 A schematic diagram of the bending state of the self-rotating protective cable clamping mechanism provided by the present invention;

[0032] Figure 5 A schematic diagram of the combined structure of the cage-type carriage, inner protective component, and bending limiting component provided by the present invention;

[0033] Figure 6This is a schematic diagram of the structure of the sliding clamping assembly provided by the present invention;

[0034] Figure 7 Exploded view of the cable clamp provided by the present invention;

[0035] Figure 8 A cross-sectional view of the self-rotating protective cable clamping mechanism provided by the present invention in a bent state;

[0036] Figure 9 This is a schematic diagram of the structure of the dispersion protection component provided by the present invention.

[0037] The components include: 1. Cable, 2. Slide rail, 3. Hanging trolley, 4. Suspension component, 5. Self-rotating protective cable clamping mechanism, 6. Locking mechanism, 7. Hanger, 8. Distributed bending clamping assembly, 9. Inner protective assembly, 10. Bending spring, 11. Sliding clamping assembly, 12. Cage-type slide, 13. Cable clamp, 14. Self-adjusting spring, 15. Bending limit assembly, 16. Distributed spring, 17. Outer plate, 18. Inner sliding plate, 19. Positioning screw hole, 20. Positioning screw, 21. Slide rod, 22. Fixed ring, 23. Protective ring, 24. 25. Flexible protective sleeve, 26. Sliding end ring, 27. Tension spring, 28. Dispersion protection assembly, 29. Dispersion ring, 30. Dispersion protective sleeve, 31. Elastic support, 32. Sliding ring, 33. Clamping sleeve, 34. Tightening sleeve, 35. Clamping claw, 36. Swinging slot, 37. Push block, 38. Torsion spring, 39. Fixed column, 40. Pressure plate, 41. Locking sleeve, 42. Rope hole, 43. Counterweight, 44. Top plate, 45. Fixed rod, 46. Swinging rod, 47. Frame, 48. Pulley, 49. Guide sleeve.

[0038] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 invention.

[0041] like Figures 1-9 As shown, the present invention provides a cable dragging device for a mining tunneling machine, comprising a cable 1, multiple sections of slide rail 2 connected end to end, and multiple sets of slidable trolleys 3. Suspension members 4 are arrayed at the upper end of the slide rail 2, and the slide rail 2 is installed on the top of the roadway via the suspension members 4. Several sections of the slide rail 2 are connected in sequence to form a track extending along the roadway. A self-rotating protective cable clamping mechanism 5 is provided at the bottom end of the slidable trolleys 3. A locking mechanism 6 is provided on the side wall of the slidable trolleys 3. One end of the cable 1 is connected to the tunneling machine, and the other end of the cable 1 passes through multiple sets of locking mechanisms 6 in sequence. When the tunneling machine advances, the cable 1 pulls the multiple sets of slidable trolleys 3 to slide in sequence, thereby moving the cable. The self-rotating protective cable clamping mechanism 5 includes a hanger 7 and a distributed bending clamp. The component 8 is a support assembly. The hanger 7 is rotatably mounted at the bottom end of the trolley 3. The distributed bending clamping assembly 8 is located at the bottom end of the hanger 7. The distributed bending clamping assembly 8 has an inner protective assembly 9 coaxially mounted inside. The distributed bending clamping assembly 8 includes a bending spring 10 and sliding clamping assemblies 11 symmetrically arranged on both sides of the bending spring 10. The sliding clamping assembly 11 includes a cage-type slide 12 and a cable clamp 13 coaxially arranged inside the cage-type slide 12. The cable clamp 13 is slidably connected to the cage-type slide 12. A self-adjusting spring 14 is provided between the cable clamp 13 and the cage-type slide 12. The cable clamp 13 clamps and fixes the cable. When the bending spring 10 bends to adapt to the bending angle of the cable, the self-adjusting spring 14 drives the cable clamp 13 to automatically fine-tune to adapt to the length change caused by the bending of the self-adjusting spring 14.

[0042] See Figures 1-3 The suspended trolley 3 includes a frame 47 and pulleys 48. The frame 47 is U-shaped. The pulleys 48 are rotatably mounted on two opposite inner walls of the frame 47. The frame 47 is slidably mounted on the slide rail 2. The pulleys 48 are rotatably mounted between the slide rail 2 and the frame 47.

[0043] like Figures 3-6 As shown, the cage-type slide 12 includes a slide rod 21 and fixed rings 22 at both ends of the slide rod 21. The slide rod 21 is arranged in a circumferential array around the fixed rings 22. The side wall of the cable clamp 13 is provided with guide sleeves 49 at equal intervals along the circumference. The guide sleeves 49 are slidably connected to the slide rod 21.

[0044] See Figures 1-3 The locking mechanism 6 includes a fixing post 39, a pressing plate 40, and a locking sleeve 41. The fixing post 39 is located on the side wall of the hanging trolley 3, and a rope hole 42 is provided through the side wall of the fixing post 39. The cable 1 passes through the rope hole 42. The pressing plate 40 is located at the end of the fixing post 39. The locking sleeve 41 is coaxially sleeved on the fixing post 39. The fixing post 39 and the locking sleeve 41 are threaded together. The rope hole 42 is located between the pressing plate 40 and the locking sleeve 41. By screwing the locking sleeve 41 closer to the pressing plate 40, the cable 1 can be quickly fixed to the fixing post 39, thereby achieving rapid locking of the cable 1.

[0045] In some embodiments, a counterweight 43 is slidably threaded through the cable 1 between two adjacent sets of locking mechanisms 6. The counterweight 43 can straighten the cable 1 and prevent the cable 1 from getting tangled on the cable surface.

[0046] See Figures 1-4 The hanger 7 includes a top plate 44, a fixed hanger 45, and a swing hanger 46. The top plate 44 is rotatably mounted on the bottom end of the hanging trolley 3. The fixed hanger 45 is symmetrically mounted on the bottom wall of the top plate 44. The swing hanger 46 corresponds one-to-one with the fixed hanger 45. One end of the swing hanger 46 is rotatably connected to the bottom end of the fixed hanger 45, and the other end of the swing hanger 46 is rotatably connected to the cage-type slide 12. The swing hanger 46 drives the cage-type slide 12 to swing as the bending spring 10 bends, so as to adapt to the bending of the bending spring 10.

[0047] like Figure 4 , Figure 5 As shown, the inner protective component 9 includes a protective ring 23, a flexible protective sleeve 24, a sliding end ring 25, and a tension spring 26. The flexible protective sleeve 24 is arranged through the front and back, with its middle portion axially inserted into the bending spring 10, and both ends of the flexible protective sleeve 24 extending out of the bending spring 10. The protective ring 23 is sleeved on the outside of the flexible protective sleeve 24, and the protective rings 23 are arranged at equal intervals along the length of the flexible protective sleeve 24. The protective rings 23 are located between the flexible protective sleeve 24 and the bending spring 10. The sliding end ring 25 is located at both ends of the flexible protective sleeve 24 and is slidably connected to the cage-type slide 12. The tension spring 26 is located between the sliding end ring 25 and the cage-type slide 12.

[0048] See Figure 3 and Figure 4A bending limiting component 15 is provided between the sliding clamping components 11. The bending limiting component 15 limits the bending degree of the bending spring 10. A dispersion spring 16 is provided on the side of the sliding clamping component 11 away from the bending spring 10. The elastic force of the dispersion spring 16 is greater than that of the bending spring 10. When the cable bends due to its own weight, the cable drives the bending spring 10 to bend. When it reaches the limiting position, the weight of the cable itself drives the dispersion spring 16 to bend. Through the cooperation of the dispersion spring 16 and the bending spring 10, the bending of the cable is dispersed, and the bending at one point is dispersed into bending at multiple points, so as to avoid excessive local bending pressure on the cable.

[0049] like Figures 3-8 As shown, the cable clamp 13 includes a sliding ring 32, a clamping sleeve 33, a screwing sleeve 34, and a clamping claw 35. The sliding ring 32 is coaxially slidably disposed within the cage-type slide 12. One end of the clamping sleeve 33 is coaxially rotatable within the sliding ring 32. The end face of the other end of the clamping sleeve 33 is provided with a swing groove 36, which is distributed in a circumferential array around the clamping sleeve 33. A swing shaft is provided within the swing groove 36. One end of the clamping claw 35 is rotatably connected to the swing shaft. A torsion spring 38 is provided on the inner wall of the clamping claw 35 and the swing groove 36. The screwing sleeve 34 is coaxially disposed on the outer side of the clamping sleeve 33 and is threadedly connected to the clamping sleeve 33. A push block 37 is provided on the inner wall of the end of the screwing sleeve 34 away from the sliding ring 32. The guide sleeve 49 is equidistantly disposed on the outer circumferential wall of the sliding ring 32.

[0050] The clamping sleeve 33 is rotatably disposed inside the sliding ring 32. The clamping sleeve 33 is rotatably connected to the sliding ring 32, which can play a role in preventing the cable from twisting.

[0051] like Figures 3-5 As shown, the bending limiting assembly 15 includes an outer plate 17 and an inner slide plate 18 that are slidably connected. One end of the outer plate 17 is rotatably connected to a cage-like slide 12 on one side of the bending spring 10, and one end of the inner slide plate 18 is rotatably connected to a cage-like slide 12 on the other side of the bending spring 10. The outer plate 17 has a slide groove on the side near the inner slide plate 18, and the inner slide plate 18 is slidably disposed in the slide groove. The outer plate 17 has a through-hole 19, which is equidistantly distributed along the length of the slide groove. A positioning screw 20 is inserted into the positioning screw hole 19. By inserting the positioning screw 20 into different positioning screw holes 19, the bending degree of the bending spring 10 can be adjusted and limited.

[0052] like Figures 5-9As shown, the dispersion spring 16 is provided with a dispersion protection component 28. The dispersion protection component 28 includes a dispersion ring 29 and a dispersion protection sleeve 30. The dispersion protection sleeve 30 is arranged through the front and back. One end of the dispersion protection sleeve 30 is fixed to the cage slide 12. The other end of the dispersion protection sleeve 30 passes through the dispersion spring 16 axially and extends out of the dispersion spring 16. The dispersion ring 29 is sleeved on the outside of the dispersion protection sleeve 30. The dispersion rings 29 are arranged at equal intervals along the length direction of the dispersion protection sleeve 30. The dispersion rings 29 are located between the dispersion protection sleeve 30 and the dispersion spring 16.

[0053] The flexible protective sleeve 24 and the dispersed protective sleeve 30 are respectively provided with elastic support 31 along the length direction. The elastic support 31 can be bent and deformed, and can avoid the flexible protective sleeve 24 or the dispersed protective sleeve 30 from wrinkling and squeezing. The elastic support 31 can be made of stainless steel metal strip.

[0054] The flexible protective sleeve 24 and the dispersion protective sleeve 30 are made of nylon material. Nylon has good elasticity and wear resistance and can withstand greater tension and pressure. The protective ring 23 is made of rubber material.

[0055] In practical use, the cable is passed through multiple sets of self-rotating protective cable clamping mechanisms 5 in sequence and then fixed on the secondary conveyor. The length of the cable between adjacent sets of self-rotating protective cable clamping mechanisms 5 is adjusted. Then, the multiple sets of self-rotating protective cable clamping mechanisms 5 are clamped and fixed on the cable. Initially, the torsion spring 38 pushes the clamping claw 35 to rotate away from the axis of the clamping sleeve 33, so that the clamping claw 35 is always in contact with the push block 37. Rotating the screw sleeve 34 causes the screw sleeve 34 to move closer to the sliding ring 32. The screw sleeve 34 drives the push block 37 to move closer to the clamping claw 35, and pushes the multiple sets of clamping claws 35 to rotate inward synchronously to clamp and fix the cable. When the clamping claw 35 is tightly against the side wall of the cable, During the bonding process, the rotation of the screw sleeve 34 is stopped. At this time, the cable is fixed and clamped by multiple sets of clamping claws 35 and cannot move. Then, the length of the cable 1 between the two adjacent sets of locking mechanisms 6 is adjusted so that the length of the cable 1 between the two adjacent sets of locking mechanisms 6 is slightly greater than the length of the cable between the two adjacent sets of self-rotating protective cable clamping mechanisms 5. Then, the cable 1 is clamped and fixed by the locking mechanism 6. By screwing the locking sleeve 41 closer to the pressure plate 40, the cable 1 is pressed between the locking sleeve 41 and the pressure plate 40, realizing the rapid locking of the cable 1. Thus, when the tunneling machine moves forward, the tunneling machine pulls multiple sets of hanging pulleys 3 to slide sequentially through the cable 1, and the hanging pulleys 3 drive the cable to move, avoiding Instead of directly pulling the hanging trolley 3 via the cable, when two adjacent sets of hanging trolleys 3 are close together (i.e., before the cable is fully extended), the cable pushes the self-rotating protective cable clamping mechanism 5 to rotate automatically. Simultaneously, the cable's gravity causes the bending spring 10 to bend. During bending, the cage-like slides 12 on both sides of the bending spring 10 cause the inner slide plate 18 to slide and retract into the outer sleeve plate 17 until the inner slide plate 18 abuts against the positioning screw 20, reaching the limit position. At this point, the cable and bending spring 10 can no longer bend. The cable's own gravity then causes the dispersion spring 16 to bend. Through the cooperation of the dispersion spring 16 and the bending spring 10, the bending of the cable is dispersed, turning a concentrated bend into a multi-point bend, preventing electrical... When the cable is subjected to excessive bending pressure, the self-adjusting spring 14 drives the cable clamp 13 to slide as the bending spring 10 bends to accommodate the bending angle of the cable. This automatically fine-tunes to adapt to the length changes caused by the bending of the self-adjusting spring 14. At the same time, the tension spring 26 pushes the sliding end ring 25 to slide and cooperates with the elastic support 31 to keep the flexible protective sleeve 24 in a taut state. The protective ring 23 creates a gap between the flexible protective sleeve 24 and the bending spring 10. Through the cooperation of the protective ring 23, the tension spring 26, and the sliding end ring 25, the cable is prevented from being squeezed and damaged when the bending spring 10 bends. The dispersion ring 29, the dispersion protective sleeve 30, and the elastic support 31 provide protection for the cable when the dispersion spring 16 bends.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cable dragging device for a mining tunneling machine, characterized in that: The system includes a cable (1), multiple sections of slide rails (2) connected end to end, and multiple sets of slidable trolleys (3) along the slide rails (2). The upper end of the slide rails (2) is provided with a suspension element (4). The slide rails (2) are installed on the top of the roadway through the suspension element (4). Several sections of the slide rails (2) are connected in sequence to form a track extending along the roadway. The bottom end of the slidable trolleys (3) is provided with a self-rotating protective cable clamping mechanism (5). The side wall of the slidable trolleys (3) is provided with a locking mechanism (6). One end of the cable (1) is connected to the tunneling machine, and the other end of the cable (1) passes through multiple sets of locking mechanisms (6) in sequence. The self-rotating protective cable clamping mechanism (5) includes a hanger (7) and a distributed bend. The bending clamping assembly (8) is rotatably mounted at the bottom end of the hanging trolley (3). The distributed bending clamping assembly (8) is mounted at the bottom end of the hanging trolley (7). The distributed bending clamping assembly (8) is coaxially provided with an inner protective assembly (9). The distributed bending clamping assembly (8) includes a bending spring (10) and sliding clamping assemblies (11) symmetrically arranged on both sides of the bending spring (10). The sliding clamping assembly (11) includes a cage slide (12) and a cable clamp (13) coaxially arranged in the cage slide (12). The cable clamp (13) is slidably connected to the cage slide (12). A self-adjusting spring (14) is provided between the cable clamp (13) and the cage slide (12).

2. The cable dragging device for a mining tunneling machine according to claim 1, characterized in that: A bending limiting component (15) is provided between the sliding clamping components (11) to limit the bending degree of the bending spring (10). A dispersing spring (16) is provided on the side of the sliding clamping component (11) away from the bending spring (10). The elastic force of the dispersing spring (16) is greater than that of the bending spring (10).

3. The cable dragging device for a mining tunneling machine according to claim 2, characterized in that: The bending limiting assembly (15) includes a sliding outer plate (17) and an inner sliding plate (18). One end of the outer plate (17) is rotatably connected to a cage-type slide (12) on one side of the bending spring (10), and one end of the inner sliding plate (18) is rotatably connected to a cage-type slide (12) on the other side of the bending spring (10). A groove is provided on the side of the outer plate (17) near the inner sliding plate (18), and the inner sliding plate (18) is slidably disposed in the groove. A positioning screw hole (19) is provided through the outer plate (17), and the positioning screw holes (19) are equidistantly distributed along the length of the groove. A positioning screw (20) is inserted into the positioning screw hole (19).

4. The cable dragging device for a mining tunneling machine according to claim 3, characterized in that: The inner protective component (9) includes a protective ring (23), a flexible protective sleeve (24), a sliding end ring (25), and a tension spring (26). The flexible protective sleeve (24) is arranged through the front and back. The middle part of the flexible protective sleeve (24) is inserted into the bending spring (10) along the axial direction. The two ends of the flexible protective sleeve (24) extend out of the bending spring (10). The protective ring (23) is sleeved on the outside of the flexible protective sleeve (24). The protective rings (23) are arranged at equal intervals along the length direction of the flexible protective sleeve (24). The protective rings (23) are located between the flexible protective sleeve (24) and the bending spring (10). The sliding end ring (25) is located at both ends of the flexible protective sleeve (24). The sliding end ring (25) is slidably connected to the cage slide (12). The tension spring (26) is located between the sliding end ring (25) and the cage slide (12).

5. The cable dragging device for a mining tunneling machine according to claim 4, characterized in that: The dispersion spring (16) is provided with a dispersion protection component (28), which includes a dispersion ring (29) and a dispersion protection sleeve (30). The dispersion protection sleeve (30) is arranged through the front and back. One end of the dispersion protection sleeve (30) is fixed to the cage slide (12), and the other end of the dispersion protection sleeve (30) passes through the dispersion spring (16) axially and extends out from the dispersion spring (16). The dispersion ring (29) is sleeved on the outside of the dispersion protection sleeve (30). The dispersion rings (29) are arranged at equal intervals along the length direction of the dispersion protection sleeve (30). The dispersion rings (29) are located between the dispersion protection sleeve (30) and the dispersion spring (16). The sidewalls of the flexible protection sleeve (24) and the sidewalls of the dispersion protection sleeve (30) are respectively provided with elastic support (31) along the length direction.

6. The cable dragging device for a mining tunneling machine according to claim 5, characterized in that: The cable clamp (13) includes a sliding ring (32), a clamping sleeve (33), a screwing sleeve (34), and a clamping claw (35). The sliding ring (32) is slidably disposed coaxially within the cage-type slide (12). One end of the clamping sleeve (33) is rotatably disposed coaxially within the sliding ring (32). The end face of the clamping sleeve (33) is provided with a swing groove (36). The swing groove (36) is arranged in a circumferential array around the clamping sleeve (33). A swing shaft is provided in the swing groove (36). One end of the clamping claw (35) is rotatably connected to the swing shaft. A torsion spring (38) is provided on the inner wall of the clamping claw (35) and the swing groove (36). The screwing sleeve (34) is coaxially disposed on the outside of the clamping sleeve (33). The screwing sleeve (34) is threadedly connected to the clamping sleeve (33). A push block (37) is provided on the inner wall of the end of the screwing sleeve (34) away from the sliding ring (32).

7. A cable dragging device for a mining tunneling machine according to claim 6, characterized in that: The clamping sleeve (33) is rotatably disposed within the sliding ring (32).

8. A cable dragging device for a mining tunneling machine according to claim 7, characterized in that: The locking mechanism (6) includes a fixed column (39), a pressing plate (40), and a locking sleeve (41). The fixed column (39) is located on the side wall of the hanging trolley (3). A rope hole (42) is provided through the side wall of the fixed column (39). The cable (1) passes through the rope hole (42). The pressing plate (40) is located at the end of the fixed column (39). The locking sleeve (41) is coaxially sleeved on the fixed column (39). The fixed column (39) and the locking sleeve (41) are threaded together. The rope hole (42) is located between the pressing plate (40) and the locking sleeve (41).

9. A cable dragging device for a mining tunneling machine according to claim 8, characterized in that: A counterweight (43) is slidably threaded through the cable (1) between two adjacent sets of locking mechanisms (6).

10. A cable dragging device for a mining tunneling machine according to claim 9, characterized in that: The hanger (7) includes a top plate (44), a fixed hanger (45) and a swing hanger (46). The top plate (44) is rotatably disposed at the bottom end of the hanging trolley (3). The fixed hanger (45) is symmetrically disposed on the bottom wall of the top plate (44). The swing hanger (46) corresponds one-to-one with the fixed hanger (45). One end of the swing hanger (46) is rotatably connected to the bottom end of the fixed hanger (45), and the other end of the swing hanger (46) is rotatably connected to the cage-type trolley (12).

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