Cable reel pay-off antiskid braking device

Abstract

The invention relates to the technical field of cable reels, and discloses a cable reel pay-off antiskid braking device which comprises an inverted-U-shaped frame and a cable reel, a traction connecting ring is fixedly installed in the middle of the outer side of the middle of the inverted-U-shaped frame, and reinforcing vertical plates are fixedly installed on the two sides of the top of the inverted-U-shaped frame correspondingly; symmetrical inner grooves are formed in the lower portions of the two reinforcing vertical plates, moving blocks are installed in the two inner grooves, lifting plug pins are installed in the middles of the two moving blocks, a cable reel is installed between the two lifting plug pins, symmetrical transverse through grooves are formed in the middles of the two sides of the inverted-U-shaped frame, inverted-L-shaped sliding blocks are installed in the two transverse through grooves, and the inverted-L-shaped sliding blocks are installed in the inverted-U-shaped frame. The opposite ends of the two inverted-L-shaped sliding blocks are each rotationally provided with an adjusting gear A for conducting transmission braking and skid prevention on the cable drum. The cable reel pay-off anti-skid braking device is provided with a convenient disassembly and assembly structure and an effective drive take-up and pay-off anti-skid braking structure, and the performance of the cable reel pay-off anti-skid braking device can meet the actual use requirement of a cable reel.

Description

Technical Field

[0001] The invention belongs to the technical field of cable drums, and in particular relates to a cable drum unwinding anti-skid braking device. Background Art

[0002] Cable is a conductor used to transmit electrical energy or signals, usually composed of a conductor, an insulating layer, a sheath and a shielding layer. Power cables are mainly used for power transmission and can withstand high voltage and high current. In order to facilitate the transportation and use of cables, cables are rolled up on cable reels. Due to the large diameter and heavy weight of cable reels, cable reel pay-off vehicles are required for outdoor cable wiring. In traditional power cable construction and laying, the braking of cable reels is mostly done by manually holding the cable reel with a wooden stick or pulling the cable reel by hand. Manual braking has low safety performance and is prone to safety hazards. At the same time, due to the large inertia moment of the cable reel during the pay-off process, it is difficult for humans to perform effective braking operations. Therefore, improvements are needed to address the above problems. Summary of the invention

[0003] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cable drum unwinding anti-skid braking device, comprising an inverted U-shaped frame and a cable drum, wherein moving wheels A are installed at both ends of the inverted U-shaped frame, two moving wheels B are symmetrically installed on the outer side of the middle part of the inverted U-shaped frame, a traction connecting ring is fixedly installed in the middle of the outer side of the middle part of the inverted U-shaped frame, reinforcement vertical plates are fixedly installed on both sides of the top of the inverted U-shaped frame, symmetrical inner grooves are opened in the lower parts of the two reinforcement vertical plates, and moving blocks that can be synchronously lifted and lowered are installed inside the two inner grooves, and lifting pins that can be horizontally synchronously moved and adjusted are installed in the middle parts of the two moving blocks, the cable drum is installed between the two lifting pins, symmetrical transverse through grooves are opened in the middle parts of both sides of the inverted U-shaped frame, and inverted L-shaped sliders that can slide horizontally synchronously are installed inside the two transverse through grooves, the two inverted L-shaped sliders are symmetrically arranged, and the opposite ends of the two inverted L-shaped sliders are rotatably installed with adjustment gears A for transmission braking and anti-skid of the cable drum.

[0004] Preferably, circular through-mounting holes are symmetrically opened in the middle of the two movable blocks, and the two lifting pins are movably inserted in the two circular through-mounting holes respectively. Conical extrusion blocks are symmetrically fixedly installed on the opposite ends of the two lifting pins. The opposite ends of the two lifting pins are respectively inserted in the inside of the middle hole of the cable reel and the cable reel is centrally installed and fixed by the conical extrusion blocks. Ring teeth are fixedly installed at equal distances on the surfaces of the opposite ends of the two lifting pins, and the cross-section of the ring teeth is a tooth-like structure, so that the cable reel can be effectively installed.

[0005] Preferably, telescopic adjustment components for adjusting the lifting pin are installed on the opposite sides of the two moving blocks, and the telescopic adjustment components include an adjustment shaft A rotatably connected to the moving block, and an adjustment gear B matching and meshing with the ring gear is fixedly installed on the surface of the adjustment shaft A, thereby effectively adjusting the movement of the lifting pin.

[0006] Preferably, a worm gear is fixedly mounted on the surface of the adjusting shaft A, a worm gear meshing with the worm gear is rotatably mounted on the opposite sides of the two moving blocks, a square transmission plug shaft is fixedly mounted on the top of the two worm gears, an inner square rotating tube is rotatably mounted on the upper parts of the opposite sides of the two reinforcing vertical plates, the square transmission plug shaft is movably inserted into the inside of the inner square rotating tube, and a transmission gear A is mounted on the top of the two inner square rotating tubes.

[0007] Preferably, the interiors of the two inner grooves are rotatably connected with threaded rods, the moving block is threadedly connected to the surface of the threaded rods, and both ends of the moving block are installed with balls A that are in rolling contact with the inner grooves, the tops of the threaded rods extend to the top of the reinforcing vertical plates and are fixedly installed with transmission gears B, and the two reinforcing vertical plates are rotatably installed with transmission shafts on the opposite sides, and circular disks are fixedly installed on the tops of the transmission shafts, and arc-shaped transmission tooth blocks are fixedly installed on the circumferential surfaces of the two circular disks, and the arc-shaped transmission tooth blocks alternately mesh and transmit the transmission gear B and the transmission gear A, so that the lifting pin and the moving block can be adjusted in turn.

[0008] Preferably, a small bevel gear is fixedly installed at the bottom of the two transmission shafts, sprockets A are rotatably installed on both sides of the inverted U-shaped frame surface, large bevel gears are fixedly installed at the axis of the two sprockets A, and the two small bevel gears are respectively meshed and connected with the two large bevel gears.

[0009] Preferably, adjusting shafts B are rotatably installed on both sides of the surface of the inverted U-shaped frame, sprockets B are fixedly installed on the opposite ends of the two adjusting shafts B, chains are installed between adjacent sprockets B and sprockets A, both ends of the same chain are fixedly connected to adjacent inverted L-shaped sliders, a double-output shaft motor A is fixedly installed in the middle of the inner side of the inverted U-shaped frame, and the opposite ends of the two adjusting shafts B extend to the inner side of the inverted U-shaped frame and are fixedly connected to the two output ends of the double-output shaft motor A, thereby effectively performing transmission adjustment.

[0010] Preferably, a sliding rod is fixedly installed on the upper part of the two transverse grooves, and an inverted L-shaped slider is slidably sleeved on the surface of the sliding rod. A connecting plate is fixedly installed between the bottoms of the opposite ends of the two inverted L-shaped sliders, and a double-output shaft motor B is installed in the middle of the top of the connecting plate. The two output ends of the double-output shaft motor B are respectively fixedly connected to the axis centers of the two adjusting gears A.

[0011] Preferably, large outer gear rings are fixedly mounted on both ends of the cable drum, and two adjustment gears A are respectively movably meshed and transmission-connected with the two large outer gear rings, thereby being able to effectively adjust the cable drum for reeling, unreeling, and anti-skid braking.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) During operation, the cable drum unwinding anti-skid brake device has a convenient disassembly and assembly structure and an effective driving and retracting anti-skid brake structure by providing an inverted U-shaped frame, a moving wheel A, a moving wheel B, a traction connection ring, a reinforcing vertical plate, an inner groove, a moving block, a lifting pin, a cable drum, a transverse groove, an inverted L-shaped slider and an adjusting gear A. The disassembly and assembly structure can effectively install, fix and lift the cable drum, thereby improving the convenience of using the cable drum, and the driving and retracting anti-skid brake structure can stably rotate and adjust the cable drum, so that the cable drum can be safely, stably and reliably retracted and unwound;

[0014] At the same time, the cable drum wire-laying anti-skid brake device is driven and adjusted through a mechanical structure, thereby effectively improving the stability of use. The cable drum wire-laying anti-skid brake device has a simple structural design, is convenient to use and operate, and is stable and reliable to adjust and control. Its performance can meet the actual use requirements of the cable drum.

[0015] (2) By starting the double-output shaft motor to rotate the two adjustment shafts, the rotation of the two adjustment shafts will drive the two sprockets to rotate, the rotation of the two sprockets will drive the two chains to move through the rotatable sprockets, and the rotation of the two sprockets will drive the two large bevel gears to rotate, the rotation of the two large bevel gears will accelerate the transmission rotation of the two small bevel gears, and the rotation of the two small bevel gears will synchronously drive the two transmission shafts to rotate synchronously;

[0016] The rotation of the two transmission shafts will drive the disc and the arc-shaped transmission gear block to rotate. The rotating arc-shaped transmission gear block will first transmit the transmission gear to rotate. The rotation of the transmission gear will drive the inner square rotating tube to rotate. The rotation of the inner square rotating tube will drive the worm to rotate through the square transmission plug shaft. The rotation of the worm will transmit the worm wheel. The rotation of the worm wheel will drive the adjustment shaft and the adjustment gear to rotate. The rotation of the adjustment gear will shift the ring teeth to adjust the horizontal movement of the lifting pin, so that the two lifting pins move relative to each other and are inserted into the middle hole of the cable drum. At the same time, the cable drum is centrally installed and fixed by the conical extrusion block, and then the arc-shaped transmission gear block is separated from the transmission gear.

[0017] When the rotating arc-shaped transmission gear block is separated from the transmission gear, it will transmit the transmission gear and drive the threaded rod to rotate. The rotation of the threaded rod will cause the moving block to move upward inside the inner groove. The upward movement of the two moving blocks will drive the two lifting pins to move upward. The upward movement of the two lifting pins will drive the fixed cable reel to move upward, so that the cable reel is away from the ground.

[0018] (3) By starting the double-output shaft motor to rotate the two adjustment shafts, the rotation of the two adjustment shafts will drive the two sprockets to rotate, and the rotation of the two sprockets will drive the two chains to move through the rotatable sprockets, and the rotation of the two sprockets will drive the two large bevel gears to rotate, and the rotation of the two large bevel gears will accelerate the transmission rotation of the two small bevel gears, and the rotation of the two small bevel gears will synchronously drive the two transmission shafts to rotate synchronously; and the movement of the two chains will drive the two inverted sliders to move, so that the two inverted sliders drive the two adjustment gears to move toward the cable drum lifted away from the ground;

[0019] (4) After the arc-shaped transmission gear block is separated from the transmission gear, the two chains continue to move, driving the two inverted sliders and the adjustment gear to continue to move toward the cable drum, and finally the two adjustment gears are respectively meshed with the two large outer gear rings and stop moving and adjusting;

[0020] Then start the double-output shaft motor to drive the two adjusting gears. The rotation of the two adjusting gears will drive the two large outer gear rings to rotate and drive the cable reel to rotate, so that the cable reel can stably perform winding and unwinding operations and stably perform anti-skid braking; and the rotation of the cable reel will drive the two lifting pins to rotate through the conical extrusion block, and the rotation of the two lifting pins will drive the ring teeth to effectively rotate and adjust on the adjusting shaft, so that the ring teeth and the adjusting shaft can effectively engage and transmit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] In the attached picture:

[0023] Figure 1 This is a schematic structural diagram of the cable drum pay-off anti-skid braking device of the present invention;

[0024] Figure 2 For the present invention Figure 1 The local structure of Figure 1 ;

[0025] Figure 3 For the present invention Figure 1 The local structure of Figure 2 ;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the local structure;

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the side section structure;

[0028] Figure 6 For the present invention Figure 3 A schematic diagram of a partial top view structure;

[0029] Figure 7 For the present invention Figure 2 A schematic cross-sectional structure diagram of;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the local structure;

[0031] Fig. 9 For the present invention Figure 1 The local structure of Figure 3 ;

[0032] In the figure: 1. Inverted U-shaped frame; 2. Moving wheel A; 3. Moving wheel B; 4. Traction connecting ring; 5. Reinforcement vertical plate; 6. Inner groove; 7. Moving block; 8. Lifting pin; 9. Cable drum; 10. Transverse groove; 11. Inverted L-shaped slider; 12. Adjustment gear A; 13. Round through-mounting hole; 14. Conical extrusion block; 15. Ring gear; 16. Adjustment shaft A; 17. Adjustment gear B; 18. Worm wheel; 19. Worm; 20. Square transmission Insert shaft; 21. Inner square rotating tube; 22. Transmission gear A; 23. Threaded rod; 24. Ball A; 25. Transmission gear B; 26. Transmission shaft; 27. Disc; 28. Arc-shaped transmission gear block; 29. ​​Small bevel gear; 30. Sprocket A; 31. Large bevel gear; 32. Adjustment shaft B; 33. Sprocket B; 34. Chain; 35. Double-output shaft motor A; 36. Slide rod; 37. Connecting plate; 38. Double-output shaft motor B; 39. Large outer gear ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Embodiment 1, by Figures 1 to 9The present invention comprises an inverted U-shaped frame 1 and a cable drum 9, wherein moving wheels A2 are installed at both ends of the inverted U-shaped frame 1, two moving wheels B3 are symmetrically installed on the outer side of the middle part of the inverted U-shaped frame 1, a traction connecting ring 4 is fixedly installed in the middle of the outer side of the middle part of the inverted U-shaped frame 1, and reinforcing vertical plates 5 are fixedly installed on both sides of the top of the inverted U-shaped frame 1, symmetrical inner grooves 6 are opened at the lower parts of the two reinforcing vertical plates 5, and moving blocks 7 which can be synchronously lifted and lowered are installed inside the two inner grooves 6, and lifting pins 8 which can be horizontally synchronously moved and adjusted are installed in the middle parts of the two moving blocks 7, and the cable drum 9 is installed between the two lifting pins 8, symmetrical transverse grooves 10 are opened in the middle parts of both sides of the inverted U-shaped frame 1, and inverted L-shaped sliders 11 which can slide and move horizontally synchronously are installed inside the two transverse grooves 10, and the two inverted L-shaped sliders 11 are symmetrically arranged, and the opposite ends of the two inverted L-shaped sliders 11 are rotatably installed with adjusting gears A12 for transmission braking and anti-skid of the cable drum 9.

[0035] A slide bar 36 is fixedly installed on the upper part of the two transverse grooves 10, and the inverted L-shaped slider 11 is slidably sleeved on the surface of the slide bar 36. A connecting plate 37 is fixedly installed between the bottoms of the opposite ends of the two inverted L-shaped sliders 11, and a double-output shaft motor B38 is installed in the middle of the top of the connecting plate 37. The two output ends of the double-output shaft motor B38 are respectively fixedly connected to the axis of the two adjusting gears A12; large outer gear rings 39 are fixedly installed at both ends of the cable drum 9, and the two adjusting gears A12 are respectively movably engaged and transmission-connected with the two large outer gear rings 39, so that the cable drum 9 can be effectively retracted and unreeled and the anti-skid braking can be adjusted.

[0036] After the arc-shaped transmission gear block 28 is separated from the transmission gear B25, the two chains 34 continue to move, driving the two inverted L-shaped sliders 11 and the adjustment gear A12 to continue to move toward the cable drum 9, and finally the two adjustment gears A12 are respectively meshed and connected with the two large outer gear rings 39 and stop moving and adjusting;

[0037] Then start the double-output shaft motor B38 to make the two adjustment gears A12 rotate. The rotation of the two adjustment gears A12 will drive the two large outer gear rings 39 to rotate and drive the cable drum 9 to rotate, so that the cable drum 9 can stably perform the winding and unwinding operation and stably perform anti-skid braking;

[0038] The rotation of the cable drum 9 will drive the two lifting pins 8 to rotate through the conical extrusion block 14, and the rotation of the two lifting pins 8 will drive the ring gear 15 to effectively rotate and adjust on the adjustment shaft A16, so that the ring gear 15 and the adjustment shaft A16 can effectively engage and transmit.

[0039] The cable reel wire-paying anti-skid brake device has a convenient disassembly and assembly structure and an effective driven retractable anti-skid brake structure. The disassembly and assembly structure can effectively install, fix and lift the cable reel for use, thereby improving the convenience of using the cable reel, and the driven retractable anti-skid brake structure can stably rotate and adjust the cable reel, so that the cable reel can be safely, stably and reliably retracted and unwound. At the same time, the cable reel wire-paying anti-skid brake device is transmitted and adjusted through a mechanical structure, thereby effectively improving the stability of use. The cable reel wire-paying anti-skid brake device has a simple structural design, is convenient and quick to use and operate, and is stable and reliable to adjust and control. Its performance can meet the actual use requirements of the cable reel.

[0040] Embodiment 2, on the basis of embodiment 1, circular through-mounting holes 13 are symmetrically opened in the middle of the two movable blocks 7, and the two lifting pins 8 are movably inserted in the inside of the two circular through-mounting holes 13 respectively, and the opposite ends of the two lifting pins 8 are symmetrically fixedly installed with conical extrusion blocks 14, and the opposite ends of the two lifting pins 8 are respectively inserted in the inside of the middle hole of the cable reel 9 and the cable reel 9 is centrally installed and fixed by the conical extrusion blocks 14, and the surfaces of the opposite ends of the two lifting pins 8 are fixedly installed with ring teeth 15 at equal distances, and the cross-section of the ring teeth 15 is a tooth-like structure, so that the cable reel 9 can be effectively installed.

[0041] A telescopic adjustment component for adjusting the lifting pin 8 is installed on the opposite side of the two moving blocks 7. The telescopic adjustment component includes an adjustment shaft A16 rotatably connected to the moving block 7. An adjustment gear B17 matching and meshing with the ring gear 15 is fixedly installed on the surface of the adjustment shaft A16, thereby effectively adjusting the movement of the lifting pin 8.

[0042] The rotation of the adjusting shaft A16 drives the adjusting gear B17 to rotate, and the rotation of the adjusting gear B17 will move the ring gear 15 to adjust the horizontal movement of the lifting pin 8, so that the lifting pin 8 can be effectively inserted into the middle hole of the cable drum 9.

[0043] A worm wheel 18 is fixedly installed on the surface of the adjusting shaft A16, and a worm 19 meshing with the worm wheel 18 is rotatably installed on the opposite side of the two moving blocks 7. A square transmission plug shaft 20 is fixedly installed on the top of the two worm gears 19. An inner square rotating tube 21 is rotatably installed on the upper part of the opposite side of the two reinforcing vertical plates 5. The square transmission plug shaft 20 is movably plugged into the inside of the inner square rotating tube 21, and a transmission gear A22 is installed on the top of the two inner square rotating tubes 21; the inside of the two inner grooves 6 is rotatably connected with a threaded rod 23, and the moving block 7 is threadedly connected to the threaded rod 23. The top of the threaded rod 23 extends to the top of the reinforcing vertical plate 5 and is fixedly installed with a transmission gear B25. The two reinforcing vertical plates 5 are rotatably installed on the opposite sides of the two reinforcing vertical plates 5. The top of the transmission shaft 26 is fixedly installed with a disc 27. The circumferential surfaces of the two discs 27 are fixedly installed with arc-shaped transmission tooth blocks 28. The arc-shaped transmission tooth blocks 28 alternately mesh and transmit the transmission gear B25 and the transmission gear A22, so that the lifting pin 8 and the moving block 7 can be adjusted in turn.

[0044] When installing the cable drum 9, the cable drum 9 is moved to the inside of the inverted U-shaped frame 1, and the two moving blocks 7 are located at the bottom of the two inner grooves 6. When the two moving blocks 7 are located at the bottom of the two inner grooves 6, the two lifting pins 8 are aligned with the holes in the middle of the cable drum 9;

[0045] Then, the rotation of the two transmission shafts 26 will drive the disc 27 and the arc-shaped transmission tooth block 28 to rotate. The rotating arc-shaped transmission tooth block 28 will first transmit and rotate the transmission gear A22. The rotation of the transmission gear A22 will drive the inner square rotating tube 21 to rotate. The rotation of the inner square rotating tube 21 will drive the worm 19 to rotate through the square transmission plug shaft 20. The rotation of the worm 19 will transmit and rotate the worm wheel 18. The rotation of the worm wheel 18 will drive the adjustment shaft A16 and the adjustment gear B17 to rotate. The rotation of the adjustment gear B17 will shift the ring gear 15 to adjust the horizontal movement of the lifting pin 8, so that the two lifting pins 8 move relative to each other and are inserted into the middle hole of the cable drum 9. At the same time, the cable drum 9 is centrally installed and fixed by the conical extrusion block 14, and then the arc-shaped transmission tooth block 28 is separated from the transmission gear A22.

[0046] When the rotating arc-shaped transmission gear block 28 is separated from the transmission gear A22, it will transmit the transmission gear B25 and drive the threaded rod 23 to rotate. The rotation of the threaded rod 23 will cause the moving block 7 to move upward inside the inner groove 6, and the upward movement of the two moving blocks 7 will drive the two lifting pins 8 to move upward, and the upward movement of the two lifting pins 8 will drive the installed and fixed cable reel 9 to move upward, thereby keeping the cable reel 9 away from the ground.

[0047] Embodiment 3, on the basis of embodiment 2, small bevel gears 29 are fixedly installed at the bottom of the two transmission shafts 26, sprockets A30 are rotatably installed on both sides of the surface of the inverted U-shaped frame 1, large bevel gears 31 are fixedly installed at the axis of the two sprockets A30, and the two small bevel gears 29 are respectively meshed and connected with the two large bevel gears 31; adjusting shafts B32 are rotatably installed on both sides of the surface of the inverted U-shaped frame 1, sprockets B33 are fixedly installed on the opposite ends of the two adjusting shafts B32, chains 34 are installed between adjacent sprockets B33 and sprockets A30, and both ends of the same chain 34 are fixedly connected to adjacent inverted L-shaped sliders 11, and a double-output shaft motor A35 is fixedly installed in the middle of the inner side of the inverted U-shaped frame 1, and the opposite ends of the two adjusting shafts B32 extend to the inner side of the inverted U-shaped frame 1 and are respectively fixedly connected to the two output ends of the double-output shaft motor A35, so that transmission adjustment can be effectively performed.

[0048] By starting the double-output shaft motor A35, the two adjustment shafts B32 are rotated, and the rotation of the two adjustment shafts B32 drives the two sprockets B33 to rotate. The rotation of the two sprockets B33 drives the two chains 34 to move through the rotatable sprocket A30, and the rotation of the two sprockets A30 drives the two large bevel gears 31 to rotate. The rotation of the two large bevel gears 31 accelerates the transmission rotation of the two small bevel gears 29, and the rotation of the two small bevel gears 29 synchronously drives the two transmission shafts 26 to perform synchronous rotation adjustment;

[0049] The movement of the two chains 34 will drive the two inverted L-shaped sliders 11 to move, so that the two inverted L-shaped sliders 11 drive the two adjusting gears A12 to move toward the cable drum 9 lifted away from the ground.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable reel unwinding anti-skid braking device, comprising an inverted U-shaped frame (1) and a cable reel (9), characterized in that: Both ends of the inverted U-shaped frame (1) are equipped with moving wheels A (2), the outer side of the middle of the inverted U-shaped frame (1) is symmetrically equipped with two moving wheels B (3), the middle of the outer side of the middle of the inverted U-shaped frame (1) is fixedly equipped with a traction connection ring (4), both sides of the top of the inverted U-shaped frame (1) are fixedly equipped with reinforcement vertical plates (5), the lower parts of the two reinforcement vertical plates (5) are provided with symmetrical inner grooves (6), the insides of the two inner grooves (6) are equipped with moving blocks (7) that can be synchronously raised and lowered, and the middle parts of the two moving blocks (7) are fixedly equipped with a traction connection ring (4). Both are provided with lifting pins (8) that can be moved and adjusted synchronously horizontally, and the cable drum (9) is installed between the two lifting pins (8). Symmetrical transverse grooves (10) are provided in the middle of both sides of the inverted U-shaped frame (1). Inverted L-shaped sliders (11) that can slide and move synchronously horizontally are installed inside the two transverse grooves (10). The two inverted L-shaped sliders (11) are symmetrically arranged, and the opposite ends of the two inverted L-shaped sliders (11) are rotatably provided with adjusting gears A (12) for transmission braking and anti-skid of the cable drum (9).

2. The cable drum unwinding anti-skid braking device according to claim 1, characterized in that: Circular through-mounting holes (13) are symmetrically provided in the middle of the two movable blocks (7); two lifting pins (8) are movably inserted in the inside of the two circular through-mounting holes (13); conical extrusion blocks (14) are symmetrically fixedly installed at the opposite ends of the two lifting pins (8); the opposite ends of the two lifting pins (8) are respectively inserted in the inside of the middle hole of the cable drum (9) and the cable drum (9) is centrally installed and fixed by the conical extrusion blocks (14); and ring teeth (15) are fixedly installed at equal distances on the surfaces of the opposite ends of the two lifting pins (8).

3. The cable drum unwinding anti-skid braking device according to claim 2, characterized in that: A telescopic adjustment component for adjusting the lifting latch (8) is installed on the opposite side of the two moving blocks (7), and the telescopic adjustment component includes an adjustment shaft A (16) rotatably connected to the moving block (7), and an adjustment gear B (17) matching and meshing with the ring gear (15) is fixedly installed on the surface of the adjustment shaft A (16).

4. The cable drum unwinding anti-skid braking device according to claim 3, characterized in that: A worm wheel (18) is fixedly mounted on the surface of the adjusting shaft A (16); a worm (19) meshingly connected with the worm wheel (18) is rotatably mounted on the opposite sides of the two moving blocks (7); a square transmission plug shaft (20) is fixedly mounted on the top of the two worm gears (19); an inner square rotating tube (21) is rotatably mounted on the upper parts of the opposite sides of the two reinforcing vertical plates (5); the square transmission plug shaft (20) is movably plugged into the inside of the inner square rotating tube (21); and a transmission gear A (22) is mounted on the top of the two inner square rotating tubes (21).

5. The cable drum unwinding anti-skid braking device according to claim 4, characterized in that: The insides of the two inner grooves (6) are both rotatably connected with threaded rods (23), the moving block (7) is threadedly connected to the surface of the threaded rod (23), and both ends of the moving block (7) are installed with balls A (24) that are in rolling contact with the inner groove (6), the tops of the threaded rods (23) extend to the top of the reinforcement vertical plate (5) and are fixedly installed with a transmission gear B (25), the opposite sides of the two reinforcement vertical plates (5) are both rotatably installed with a transmission shaft (26), the tops of the transmission shafts (26) are both fixedly installed with a disk (27), the circumferential surfaces of the two disks (27) are both fixedly installed with arc-shaped transmission tooth blocks (28), and the arc-shaped transmission tooth blocks (28) alternately mesh the transmission gear B (25) and the transmission gear A (22).

6. The cable drum unwinding anti-skid braking device according to claim 5, characterized in that: A small bevel gear (29) is fixedly mounted at the bottom of the two transmission shafts (26), sprockets A (30) are rotatably mounted on both sides of the surface of the inverted U-shaped frame (1), large bevel gears (31) are fixedly mounted at the axis of the two sprockets A (30), and the two small bevel gears (29) are respectively meshed and connected with the two large bevel gears (31).

7. The cable drum unwinding anti-skid braking device according to claim 6, characterized in that: Adjustment shafts B (32) are rotatably mounted on both sides of the surface of the inverted U-shaped frame (1); sprockets B (33) are fixedly mounted on opposite ends of the two adjustment shafts B (32); chains (34) are mounted between adjacent sprockets B (33) and sprockets A (30); both ends of the same chain (34) are fixedly connected to adjacent inverted L-shaped sliders (11); a double-output shaft motor A (35) is fixedly mounted in the middle of the inner side of the inverted U-shaped frame (1); opposite ends of the two adjustment shafts B (32) extend to the inner side of the inverted U-shaped frame (1) and are respectively fixedly connected to two output ends of the double-output shaft motor A (35).

8. The cable drum unwinding anti-skid braking device according to claim 1, characterized in that: A slide bar (36) is fixedly mounted on the upper part of the two transverse grooves (10); an inverted L-shaped slider (11) is slidably sleeved on the surface of the slide bar (36); a connecting plate (37) is fixedly mounted between the bottoms of the opposite ends of the two inverted L-shaped sliders (11); a double-output shaft motor B (38) is mounted in the middle of the top of the connecting plate (37); and two output ends of the double-output shaft motor B (38) are respectively fixedly connected to the axis centers of the two adjusting gears A (12).

9. The cable drum unwinding anti-skid braking device according to claim 8, characterized in that: Large outer gear rings (39) are fixedly mounted on both ends of the cable drum (9), and two adjusting gears A (12) are respectively movably meshed and transmission-connected with the two large outer gear rings (39).

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