A traction device for overhead power transmission cable

Abstract

The present invention provides a traction device for overhead power transmission cables, and relates to the field of cable traction technology. It comprises a mobile frame, and a uniformly distributed first mounting frame is arranged on the upper side of the mobile frame, one of the first mounting frames is rotatably connected to a traction disc, and a traction rope is wound around the traction disc, and another first mounting frame is rotatably connected to a cable disc, and a cable is wound around the cable disc, and a second mounting frame is arranged on the mobile frame, and a symmetrical and uniformly distributed rotating frame is detachably connected to the upper side of the second mounting frame. The present invention separates the rotating frame and the second mounting frame when passing through a steel frame, and connects the rotating frame and the second mounting frame after passing through the steel frame, thereby avoiding the need for workers to frequently disassemble and assemble when passing through the steel frame, thereby improving the efficiency of cable laying, reducing the time for workers to work at high altitudes, and reducing the probability of workers being in danger.

Description

Technical Field

[0001] The present invention relates to the technical field of cable traction, and in particular to a traction device for overhead power transmission cables. Background Art

[0002] During the installation of power cables, fixing and pulling cables is an essential step. There are many ways to install cables, one of which is: workers climb up the steel strand through the electric pole, and place one of the two rollers in the device on the electric pole to tow the cable on the steel strand. The cable passes through the upper side of the other roller, and then the device is moved to gradually bring the cable closer to the steel strand. When the cable is close to the steel strand, the worker uses a cable hook to hang the cable on the steel strand, and a cable hook is installed at intervals.

[0003] However, this method requires workers to remove the device when passing through the steel frame that fixes the steel strands on the utility poles, and then reinstall it after passing over the steel frame. This results in low cable laying efficiency, complicated operations for workers at high altitudes, and a high risk factor for workers working at high altitudes. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a traction device for an overhead power transmission cable.

[0005] The technical solution of the present invention is: a traction device for overhead power transmission cables, comprising a mobile frame, wherein a uniformly distributed first mounting frame is arranged on the upper side of the mobile frame, one of the first mounting frames is rotatably connected to a traction disc, and a traction rope is wound around the traction disc, and another first mounting frame is rotatably connected to a cable disc, and a cable is wound around the cable disc, and the rotating shaft of the traction disc and the rotating shaft of the cable disc are both connected to a driving device, and a second mounting frame is arranged on the mobile frame, and a connecting ring is fixedly connected to one side of the second mounting frame, and the connecting ring is used to connect the traction rope, and the second mounting frame The mounting frame is rotatably connected to a first roller, and the first roller is used to guide the cable. The upper side of the second mounting frame is detachably connected to a symmetrical and evenly distributed rotating frame, and the symmetrical and evenly distributed rotating frames are rotatably connected to a third mounting frame together, and a torsion spring is arranged between the rotating frame and the third mounting frame, and the third mounting frame is rotatably connected to a second roller, and the rotating frame is slidably connected to a limiting rod, and a spring is arranged between the limiting rod and the adjacent rotating frame, and the second mounting frame is provided with symmetrical and evenly distributed through holes, and the limiting rod is limitedly matched with the adjacent through holes on the second mounting frame.

[0006] As a further preferred solution, the upper side of the rotating frame symmetrically distributed on one side close to the connecting ring is fixed with a stopper, and the side of the rotating frame symmetrically distributed on the side away from the connecting ring is fixed with a stopper, and the stoppers on the symmetrically and evenly distributed rotating frame are matched with the third mounting frame to limit the position.

[0007] As a further preferred solution, one side of the symmetrically and evenly distributed rotating frames is slidably connected with a squeezing plate, a spring is provided between the squeezing plate and the adjacent rotating frame, and the squeezing plate is squeezed and matched with the adjacent limiting rod.

[0008] As a further preferred solution, the elastic coefficient of the spring between the limiting rod and the adjacent rotating frame is smaller than the elastic coefficient of the torsion spring between the adjacent rotating frame and the third mounting frame.

[0009] As a further preferred solution, a limiting column is slidably connected inside the rotating frame, a cavity is formed between the limiting column and the adjacent rotating frame, the cavity is filled with liquid and is provided with a spring, the limiting column is extruded and matched with the adjacent extrusion plate, and the cavities between the evenly distributed rotating frame and the adjacent limiting columns are connected through a hose.

[0010] As a further preferred solution, a slope is provided on a side of the limiting column close to the adjacent extrusion plate, and an upper side of the slope is located above the adjacent extrusion plate.

[0011] As a further preferred scheme, it also includes symmetrical and evenly distributed connecting rods, which are symmetrically and evenly distributed and are respectively slidably connected to adjacent rotating frames, and the connecting rods are fixedly connected to adjacent limiting rods, and a connecting plate is fixedly connected to the side of the connecting rod away from the limiting rod, and the rotating frame is fixedly connected to a first fixed shell, and a first sliding rod is slidably connected to the side of the first fixed shell close to the adjacent connecting plate, and liquid is injected between the first sliding rod and the adjacent first fixed shell, and the first sliding rod is squeezed and fitted with the adjacent connecting plate.

[0012] As a further preferred solution, the third mounting frame is fixedly connected to a second fixed shell, the second fixed shell is slidably connected to a second sliding rod, liquid is injected between the second sliding rod and the second fixed shell and a spring is provided, and the first fixed shells are symmetrically and evenly distributed and are connected to the second sliding rod through a hose.

[0013] As a further preferred solution, a buckle is fixedly connected to one side of the third mounting frame close to the second fixed shell, a clamping plate is fixedly connected to one side of the second sliding rod close to the buckle, the clamping plate and the buckle are limitedly matched, and the buckle is made of elastic material.

[0014] As a further preferred scheme, it also includes symmetrically and evenly distributed third sliding rods, the symmetrically distributed third sliding rods are all slidably connected to the adjacent first mounting frames, the symmetrically distributed third sliding rods are rotatably connected to third rollers together, the first mounting frame is fixedly connected with symmetrically distributed hydraulic rods, and the telescopic ends of the hydraulic rods are fixedly connected to the adjacent third sliding rods.

[0015] The beneficial effects of the above technical solution are as follows: the present invention separates the rotating frame and the second mounting frame when passing through the steel frame, and connects the rotating frame and the second mounting frame after passing through the steel frame, thereby avoiding the need for workers to frequently disassemble and assemble when passing through the steel frame, thereby improving the efficiency of cable laying, reducing the time workers spend working at heights, and reducing the probability of danger to workers.

[0016] When the rotating frame on one side is separated from the second mounting frame, the rotating frame on the other side cannot be separated from the second mounting frame, thereby preventing the symmetrically and evenly distributed rotating frames from being separated from the second mounting frame, causing the second mounting frame to fall and cause danger and affect cable laying.

[0017] By utilizing the second sliding rod to drive the symmetrical and evenly distributed limiting rods to move synchronously, the installation and disassembly of the device are more convenient, and the efficiency of cable laying is improved.

[0018] By using the hydraulic rod to adjust the height of the third roller, the pulling direction of the traction rope on the connecting ring is adjusted, thereby preventing the steel strand from being damaged due to excessive vertical force. At the same time, the bending angle of the cable at the first roller is adjusted to prevent the cable from being damaged due to excessive bending angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the second mounting frame and the third mounting frame of the present invention;

[0021] Figure 3 It is a three-dimensional structural cross-sectional view of the rotating frame of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating frame and the third mounting frame of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the limit rod and the extrusion plate of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating frame, the extrusion plate and the limiting column of the present invention;

[0025] Figure 7 It is a three-dimensional structural cross-sectional view of the first fixed shell and the second fixed shell of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the buckle and the clamping plate of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the third sliding rod, the third roller and the hydraulic rod of the present invention.

[0028] Figure numbers: 1-mobile frame, 2-first mounting frame, 3-traction disk, 4-cable disk, 5-second mounting frame, 501-connecting ring, 6-first roller, 7-rotating frame, 8-third mounting frame, 9-second roller, 10-limiting rod, 11-extrusion plate, 12-limiting column, 13-connecting rod, 14-connecting plate, 15-first fixed shell, 16-first sliding rod, 17-second fixed shell, 18-second sliding rod, 19-buckle, 20-card plate, 21-third sliding rod, 22-third roller, 23-hydraulic rod. DETAILED DESCRIPTION

[0029] The following is a detailed description of a traction device for overhead power transmission cables provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0030] Embodiment 1: A traction device for an overhead power transmission cable, such as Figure 1-Figure 5As shown, it includes a mobile frame 1, and two evenly distributed first mounting frames 2 are arranged on the upper side of the mobile frame 1. A traction disc 3 is rotatably connected to the first mounting frame 2 on the left side, and a traction rope is wound around the traction disc 3. A cable disc 4 is rotatably connected to the first mounting frame 2 on the right side, and a cable is wound around the cable disc 4. The winding directions of the traction rope on the traction disc 3 and the cable on the cable disc 4 are both clockwise, so that the traction rope and the cable are positioned upward when being released, reducing the angle between the straight line where the second mounting frame 5 and the mobile frame 1 are located and the steel strand, thereby reducing the vertical force component on the steel strand, and the rotation of the traction disc 3 The driving shaft and the rotating shaft of the cable drum 4 are both connected to the driving device. The driving device is an existing device, which is used to rotate the traction drum 3 and the cable drum 4. A second mounting frame 5 is provided on the mobile frame 1. A connecting ring 501 is fixedly connected to the left side of the second mounting frame 5. The connecting ring 501 is used to connect the traction rope. The middle part of the second mounting frame 5 is rotatably connected to a first roller 6. The first roller 6 is used to guide the cable. The first roller 6 is provided with a groove to prevent the cable from running off. The upper side of the second mounting frame 5 is detachably connected to four rotating frames 7 that are symmetrical and evenly distributed front and back. The upper sides of the four rotating frames 7 are rotated together to connect A third mounting frame 8 is connected, and a torsion spring is arranged between the rotating frame 7 and the third mounting frame 8. The torsion spring is used to reset the adjacent rotating frame 7. The upper sides of the two rotating frames 7 on the left are fixed with blocks, and the left sides of the upper parts of the two rotating frames 7 on the right are fixed with blocks. The blocks on the rotating frame 7 are limited with the third mounting frame 8, and the blocks are used to limit the adjacent rotating frames 7 so that the adjacent rotating frames 7 are rotated to be perpendicular to the third mounting frame 8 and then stop rotating. The middle part of the third mounting frame 8 is rotatably connected with a second roller 9, and the second roller 9 is used to move on the steel strand. The second roller 9 is provided with a concave The groove is used to prevent the second roller 9 from running off the steel strand. The rotating frame 7 is slidably connected with a C-shaped limit rod 10. The lower side of the limit rod 10 is provided with a left-facing inclined surface, which is squeezed and matched with the second mounting frame 5. A spring is provided between the limit rod 10 and the adjacent rotating frame 7. The spring is used to reset the adjacent limit rod 10. The second mounting frame 5 is provided with four through holes that are symmetrical and evenly distributed front and back. The limit rod 10 is limitedly matched with the adjacent through holes on the second mounting frame 5. When the limit rod 10 is inserted into the adjacent through holes on the second mounting frame 5, the adjacent rotating frame 7 and the second mounting frame 5 are connected.

[0031] like Figure 2-Figure 6As shown, the left sides of the four rotating frames 7 are slidably connected with an extrusion plate 11, and two springs symmetrically distributed up and down are arranged between the extrusion plate 11 and the adjacent rotating frame 7. The elastic coefficient of the spring between the limit rod 10 and the adjacent rotating frame 7 is less than the elastic coefficient of the torsion spring between the adjacent rotating frame 7 and the third mounting frame 8, so that when the rotating frame 7 drives the adjacent limit rod 10 to reset, the inclined surface on the lower side of the limit rod 10 is squeezed by the second mounting frame 5, so that the limit rod 10 moves in the direction away from the adjacent extrusion plate 11 and compresses the adjacent spring, which is used to reset the adjacent extrusion plate 11. The upper side of the limit rod 10 is provided with a left inclined surface, and the extrusion plate 11 is squeezed and matched with the inclined surface on the upper side of the adjacent limit rod 10. When the extrusion plate 11 moves to the right relative to the rotating frame 7, the extrusion plate 11 squeezes the adjacent limit rod 10, so that the limit rod 10 is separated from the adjacent through hole on the second mounting frame 5.

[0032] like Figure 5 and Figure 6 As shown, the upper part of the rotating frame 7 is slidably connected to the limit column 12, and a cavity is formed between the upper side of the limit column 12 and the adjacent rotating frame 7. The cavity is filled with liquid and a spring is provided. The liquid here and below is hydraulic oil, and the hydraulic oil is used for transmission. The spring is used to reset the adjacent limit column 12. The limit column 12 is squeezed and matched with the adjacent extrusion plate 11. When the extrusion plate 11 moves to the right relative to the adjacent rotating frame 7, the extrusion plate 11 squeezes the inclined surface of the adjacent limit column 12 to move the limit column 12 upward. The cavities between the two rotating frames 7 on the front side and the two limit columns 12 on the front side are connected through a hose, and the two rotating frames 7 on the rear side and the rear side are connected. The cavity between the two limit columns 12 is connected by a hose, and a slope is provided on the lower left side of the limit column 12, and the upper side of the slope is located above the adjacent extrusion plate 11. When the left limit column 12 moves upward, the right limit column 12 is driven to move downward, so that the slope of the right limit column 12 is lower than the upper side of the right extrusion plate 11, so that the right extrusion plate 11 cannot move to the right relative to the adjacent rotating frame 7. When the right limit column 12 moves upward, the left limit column 12 is driven to move downward, so that the slope of the left limit column 12 is lower than the upper side of the left extrusion plate 11, so that the left extrusion plate 11 cannot move to the right relative to the adjacent rotating frame 7.

[0033] When using the device, first move the mobile frame 1 to the cable laying location, and then place the second roller 9 on the steel strand for fixing the cable. During this process, first pull the limit rod 10 to move the limit rod 10 in the direction away from the adjacent extrusion plate 11. The limit rod 10 compresses the adjacent springs during the movement. After the four limit rods 10 are separated from the second mounting frame 5, the four rotating frames 7 and the second mounting frame 5 are separated. At this time, release the limit rod 10, and the limit rod 10 is reset under the action of the adjacent springs. Then the third mounting frame 8 is moved vertically upward. The third mounting frame 8 drives the second roller 9 to move. At this time, place the second roller 9 on the steel strand, and then align the second mounting frame 5 with the four rotating frames 7. Move the second mounting frame 5 to the right. The second mounting frame 5 squeezes the four limit rods 10, and the limit rods 10 move in the direction away from the adjacent extrusion plates 11 and compress the adjacent springs. When the limit rods 10 are aligned with the adjacent through holes on the second mounting frame 5, the limit rods 10 are inserted into the adjacent through holes on the second mounting frame 5 under the action of the adjacent springs, thereby fixing the second mounting frame 5 and the four rotating frames 7, and then starting the driving device to release a part of the traction rope on the traction disk 3 and the cable on the cable disk 4. At this time, the second mounting frame 5 and the third mounting frame 8 are located at the upper right of the mobile frame 1, and then the traction rope is fixed on the connecting ring 501, and the cable is passed through the upper side of the first roller 6, and then the end of the cable is fixed at the starting point of the cable laying, and then the cable overhead laying begins.

[0034] When laying cables, the movable frame 1 is moved to the left and the driving device synchronously drives the traction drum 3 and the cable drum 4 to rotate clockwise to release the traction rope and the cable, thereby preventing the traction rope and the cable from being pulled too tight. When the movable frame 1 reaches the appropriate position, it stops moving, and the driving device synchronously drives the traction drum 3 and the cable drum 4 to stop rotating, and then the driving device drives the traction drum 3 to rotate counterclockwise, and the traction drum 3 rotates to retract the traction rope. The traction rope pulls the second mounting frame 5 to move to the left through the connecting ring 501, and the second mounting frame 5 pulls the four rotating frames 7 to the left through the four limit rods 10. Move, the four rotating frames 7 jointly drive the third mounting frame 8 to move, the third mounting frame 8 drives the second roller 9 to roll along the steel strand, the second mounting frame 5 drives the first roller 6 to move to the left, the first roller 6 moves and rolls, so as to gather the cable to the lower side of the steel strand, and at the same time, the driving device drives the cable drum 4 to rotate clockwise to compensate for the change of cable tension and avoid the cable being pulled too tight. When the cable and the steel strand are parallel, the cable is hung on the steel strand with a cable hook, and then the connecting ring 501 continues to pull the second mounting frame 5 to move, so as to gradually fix the cable.

[0035] When the connecting ring 501 passes through the fixed position of the steel strand on the electric pole, the second mounting frame 5 drives the four rotating frames 7 to move to the left through the four limiting rods 10, and the rotating frame 7 drives the adjacent extrusion plates 11 to move. When the two extrusion plates 11 on the left come into contact with the steel frame on the electric pole where the steel strand is fixed, the extrusion plates 11 are blocked by the steel frame and cannot move. At this time, the rotating frame 7 continues to move, compressing the spring between the rotating frame 7 and the adjacent extrusion plates 11, and the rotating frame 7 drives the adjacent limiting rods 10 and limiting columns 12 to move. The limiting rods 10 and limiting columns 12 squeeze the adjacent extrusion plates 11. The limiting rod 10 moves away from the adjacent extrusion plate 11, the limiting column 12 moves upward and compresses the adjacent spring, and the limiting column 12 squeezes the liquid between it and the adjacent rotating frame 7 into the cavity between the adjacent limiting column 12 on the right and the rotating frame 7 through the hose, thereby causing the adjacent right limiting column 12 to move downward, and the upper side of the inclined surface of the limiting column 12 moves to be lower than the upper side of the adjacent extrusion plate 11, so that the right limiting column 12 limits the adjacent extrusion plate 11, thereby preventing the right extrusion plate 11 from triggering the adjacent limiting rod 10 to unlock, causing the rotating frame 7 and the second mounting frame 5 to separate.

[0036] When the two limiting rods 10 on the left are separated from the two through holes on the left side of the second mounting frame 5, the rotating frame 7 and the limiting rod 10 on the right are fixed, and the second mounting frame 5 and the third mounting frame 8 continue to move to the left. The two rotating frames 7 on the left start to rotate counterclockwise around the rotating connection between them and the third mounting frame 8 due to being blocked by the steel frame, and the adjacent torsion springs accumulate force. When the lower sides of the two rotating frames 7 on the left are separated from the steel frame, the rotating frame 7 rotates clockwise and resets under the action of the adjacent torsion springs, and the extrusion plate 11 resets under the action of the adjacent springs. When the rotating frame 7 rotates, it drives the limiting rod 10 to rotate. When the limiting rod 10 contacts the second mounting frame 5, the limiting rod 10 is squeezed to move in the direction away from the adjacent extrusion plate 11 and compresses the adjacent Spring, when the limit rod 10 is aligned with the adjacent through hole on the second mounting frame 5, the limit rod 10 is reset under the action of the adjacent spring, connecting the adjacent rotating frame 7 and the second mounting frame 5. At the same time, the limit column 12 on the left loses the limit of the adjacent extrusion plate 11, and the left limit column 12 is reset under the action of the adjacent spring and draws back the liquid in the cavity of the right limit column 12 and the adjacent rotating frame 7, so that the right limit column 12 releases the limit on the adjacent extrusion plate 11, and then the third mounting frame 8 continues to move. The action when the right extrusion plate 11 contacts the steel frame is the same as the above action. At this time, the device passes through the steel frame smoothly, thereby avoiding frequent disassembly and assembly of the device, improving the cable laying efficiency, and reducing the probability of danger to workers.

[0037] When the angle between the steel strand and the straight line between the second mounting frame 5 and the movable frame 1 and the ground is too large, the movable frame 1 continues to be moved and the traction disk 3 and the cable disk 4 rotate synchronously, thereby reducing the angle between the straight line between the second mounting frame 5 and the movable frame 1 and the steel strand, thereby preventing the steel strand from being damaged due to excessive downward force when the traction rope pulls the connecting ring 501, and at the same time preventing the cable from being damaged due to excessive bending angle at the first roller 6. When the cable is laid, the traction rope is separated from the connecting ring 501, and then the limit rod 10 is pulled to separate the second mounting frame 5 from the four rotating frames 7, thereby removing the second mounting frame 5 and the third mounting frame 8 from the steel strand.

[0038] Embodiment 2: Based on embodiment 1, Figure 4 , Figure 5 and Figure 7 As shown, it also includes four connecting rods 13 that are symmetrical front to back and evenly distributed left to right. The four connecting rods 13 are respectively slidably connected to adjacent rotating frames 7. The connecting rods 13 are fixedly connected to the adjacent limiting rods 10. A connecting plate 14 is fixedly connected to the side of the connecting rod 13 away from the limiting rod 10. A first fixed shell 15 is fixedly connected to the right side of the rotating frame 7. A first sliding rod 16 is slidably connected to the side of the first fixed shell 15 close to the adjacent connecting plate 14. Liquid is injected between the first sliding rod 16 and the adjacent first fixed shell 15. The liquid is hydraulic oil for transmission. The first sliding rod 16 is squeezed and matched with the adjacent connecting plate 14. When the limiting rod 10 drives the adjacent connecting plate 14 to move in a direction away from the adjacent extrusion plate 11 through the adjacent connecting rod 13, the connecting plate 14 is separated from the adjacent first sliding rod 16. When the first sliding rod 16 moves outside the adjacent first fixed shell 15, the first sliding rod 16 pushes the adjacent connecting plate 14 to move, and the connecting plate 14 drives the adjacent limiting rod 10 to move.

[0039] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, a second fixed shell 17 is fixedly connected to the upper side of the third mounting frame 8, and a second sliding rod 18 is slidably connected to the second fixed shell 17. Liquid is injected between the second sliding rod 18 and the second fixed shell 17, and a spring is provided. The liquid is hydraulic oil for transmission, and the spring is used to reset the second sliding rod 18. The four first fixed shells 15 are connected to the second sliding rod 18 through a hose. When the second sliding rod 18 moves downward, the liquid in the second fixed shell 17 is pressed into the four first fixed shells 15 through the hose.

[0040] like Figure 7 and Figure 8As shown, a buckle 19 is fixedly connected to the upper side of the third mounting frame 8. The buckle 19 is an inverted L-shape and has an inclined surface on the upper side. A card plate 20 is fixedly connected to the left side of the second sliding rod 18. The card plate 20 and the buckle 19 are limited and cooperated. The buckle 19 is made of elastic material. The card plate 20 moves downward to contact the inclined surface of the buckle 19 and squeeze the buckle 19 to bend and deform. When the card plate 20 moves to the lower side of the inclined surface of the buckle 19, the buckle 19 is reset to clamp the card plate 20.

[0041] When the second roller 9 is placed on the steel strand, the second sliding rod 18 is pressed downward, and the second sliding rod 18 moves downward to compress the adjacent spring. At the same time, the second sliding rod 18 drives the card plate 20 to move downward. After the card plate 20 contacts the buckle 19, the buckle 19 is squeezed to make the buckle 19 bend. When the card plate 20 stops moving, the buckle 19 resets and jams the card plate 20, so that the second sliding rod 18 cannot be reset, which makes it convenient for workers to operate the device for installation. When the second sliding rod 18 moves downward, the liquid in the second fixed shell 17 is pressed into the four first fixed shells 15. The liquid in the first fixed shell 15 increases, pushing the adjacent first sliding rod 16 to move out of the first fixed shell 15, and the first sliding rod 16 pushes the adjacent connecting plate 14 to move. The connecting plate 14 drives the adjacent limiting rod 10 to move through the adjacent connecting rod 13, so that the limiting rod 10 is aligned with the adjacent through hole on the second mounting frame 5. When the second roller 9 is placed on the steel strand, the buckle 19 is pulled leftward to release the limit of the card plate 20. After the card plate 20 loses its limit, the second sliding rod 18 is reset under the action of the adjacent spring, and the liquid in the four first fixed shells 15 is drawn into the second fixed shell 17. The limiting rod 10 is reset under the action of the adjacent spring. At this time, the second mounting frame 5 is aligned with the four rotating frames 7, and then moved to the right to insert the limiting rod 10 into the adjacent through hole of the second mounting frame 5, and then the traction rope and the connecting ring 501 are connected, and the cable is passed through the upper side of the first roller 6. At this point, the installation is completed. When the cable laying is completed, the traction rope is first removed from the connecting ring 501, and then the above steps are repeated to separate the second mounting frame 5 and the four rotating frames 7, so that the device is removed from the steel strand.

[0042] Embodiment 3: Based on embodiment 2, Figure 1 and Fig. 9As shown, it also includes four third sliding rods 21 that are symmetrical front to back and evenly distributed left to right. Two third sliding rods 21 that are symmetrical front to back are both slidably connected to the adjacent first mounting frame 2. The upper sides of the two symmetrically distributed third sliding rods 21 are rotatably connected together with a third roller 22. The third roller 22 is used to guide the traction rope or cable. The first mounting frame 2 is fixedly connected to two hydraulic rods 23 that are symmetrical front to back. The telescopic ends of the hydraulic rods 23 are fixedly connected to the adjacent third sliding rods 21. When the hydraulic rods 23 located on the same first mounting frame 2 are extended or contracted, the positions of the adjacent third rollers 22 are changed by the adjacent third sliding rods 21, thereby changing the turning position of the traction rope or cable.

[0043] During the cable laying process, the traction rope is passed around the left side of the left third roller 22, and the cable is passed around the left side of the right third roller 22. As the traction disc 3 reels the traction rope, the angle between the straight line between the second mounting frame 5 and the movable frame 1 and the steel strand gradually increases, and the vertical force on the steel strand gradually increases. At this time, the four hydraulic rods 23 are started to extend synchronously with the movement of the second mounting frame 5. The extension of the hydraulic rod 23 on the left drives the adjacent third sliding rod 21 to move upward, and the two third sliding rods 21 on the left drive the third roller 22 on the left to move upward, thereby changing the traction direction of the traction rope on the connecting ring 501 and reducing the vertical force on the steel strand. The two third sliding rods 21 on the right drive the third roller 22 on the right to move upward, thereby avoiding a large bending angle of the cable.

[0044] When the hydraulic rod 23 is extended to the longest distance, the movable frame 1 is moved to the left and the driving device is used to rotate the traction drum 3 and the cable drum 4 to synchronously release the traction rope and the cable, and at the same time the hydraulic rod 23 is shortened. When the hydraulic rod 23 is shortened to the shortest distance, the movable frame 1 stops moving and the above-mentioned cable laying operation is repeated.

[0045] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A traction device for an overhead power transmission cable, comprising a mobile frame (1), wherein the upper side of the mobile frame (1) is provided with uniformly distributed first mounting frames (2), wherein one of the first mounting frames (2) is rotatably connected to a traction disc (3), and the traction disc (3) is wound with a traction rope, and the other first mounting frame (2) is rotatably connected to a cable disc (4), and the cable disc (4) is wound with a cable, and the rotation shafts of the traction disc (3) and the cable disc (4) are both connected to a driving device, characterized in that: The utility model also comprises a second mounting frame (5), wherein the second mounting frame (5) is arranged on the mobile frame (1), a connecting ring (501) is fixedly connected to one side of the second mounting frame (5), the connecting ring (501) is used to connect the traction rope, the second mounting frame (5) is rotatably connected to a first roller (6), the first roller (6) is used to guide the cable, the upper side of the second mounting frame (5) is detachably connected to a symmetrical and evenly distributed rotating frame (7), the symmetrical and evenly distributed rotating frames (7) are rotatably connected to a third mounting frame (8), a torsion spring is arranged between the rotating frame (7) and the third mounting frame (8), the third mounting frame (8) is rotatably connected to a second roller (9), the rotating frame (7) is slidably connected to a limiting rod (10), a spring is arranged between the limiting rod (10) and the adjacent rotating frame (7), the second mounting frame (5) is provided with symmetrical and evenly distributed through holes, the limiting rod (10) is limitedly matched with the adjacent through holes on the second mounting frame (5); The upper sides of the rotating frames (7) symmetrically distributed on one side close to the connecting ring (501) are all fixedly connected with stoppers, and the sides of the rotating frames (7) symmetrically distributed on the side away from the connecting ring (501) are all fixedly connected with stoppers, and the stoppers on the rotating frames (7) symmetrically and evenly distributed are all limitedly matched with the third mounting frame (8); One side of each of the symmetrically and evenly distributed rotating frames (7) is slidably connected with an extrusion plate (11), a spring is provided between the extrusion plate (11) and the adjacent rotating frame (7), and the extrusion plate (11) is extruded and matched with the adjacent limiting rod (10); The elastic coefficient of the spring between the limiting rod (10) and the adjacent rotating frame (7) is smaller than the elastic coefficient of the torsion spring between the adjacent rotating frame (7) and the third mounting frame (8); The rotating frame (7) is slidably connected to a limiting column (12), a cavity is formed between the limiting column (12) and the adjacent rotating frame (7), the cavity is filled with liquid and provided with a spring, the limiting column (12) is extruded and matched with the adjacent extrusion plate (11), and the cavities between the rotating frame (7) and the adjacent limiting columns (12) are evenly distributed and connected via a hose; It also includes symmetrically and evenly distributed connecting rods (13), the symmetrically and evenly distributed connecting rods (13) are respectively slidably connected to adjacent rotating frames (7), the connecting rods (13) are fixedly connected to adjacent limiting rods (10), a connecting plate (14) is fixedly connected to a side of the connecting rod (13) away from the limiting rod (10), the rotating frame (7) is fixedly connected to a first fixed shell (15), a side of the first fixed shell (15) close to the adjacent connecting plate (14) is slidably connected to a first sliding rod (16), a liquid is injected between the first sliding rod (16) and the adjacent first fixed shell (15), and the first sliding rod (16) is extrusion-fitted with the adjacent connecting plate (14); The third mounting frame (8) is fixedly connected to a second fixed shell (17), the second fixed shell (17) is slidably connected to a second sliding rod (18), a liquid is injected between the second sliding rod (18) and the second fixed shell (17) and a spring is provided, and the symmetrically and evenly distributed first fixed shells (15) are all connected to the second sliding rod (18) via a hose; A buckle (19) is fixedly connected to one side of the third mounting frame (8) close to the second fixed shell (17), and a clamping plate (20) is fixedly connected to one side of the second sliding rod (18) close to the buckle (19). The clamping plate (20) and the buckle (19) are limitedly matched, and the buckle (19) is made of elastic material.

2. A traction device for an overhead power transmission cable according to claim 1, characterized in that: A slope is provided on one side of the limiting column (12) close to the adjacent extrusion plate (11), and the upper side of the slope is located above the adjacent extrusion plate (11).

3. A traction device for an overhead power transmission cable according to claim 1, characterized in that: The invention also comprises symmetrically and evenly distributed third sliding rods (21), wherein the symmetrically distributed third sliding rods (21) are all slidably connected to the adjacent first mounting frames (2), and the symmetrically distributed third sliding rods (21) are rotatably connected together with third rollers (22), and the first mounting frame (2) is fixedly connected with symmetrically distributed hydraulic rods (23), and the telescopic ends of the hydraulic rods (23) are fixedly connected to the adjacent third sliding rods (21).

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