CN116093835A

CN116093835A - Tractor for high-voltage cable poling

Info

Publication number: CN116093835A
Application number: CN202310222963.5A
Authority: CN
Inventors: 叶玉颜
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-05-09

Abstract

The invention relates to a tractor, in particular to a tractor for a high-voltage cable tube. The invention aims to provide the tractor for the high-voltage cable threading pipe, which is simple to operate and can save time. The utility model provides a tractor for high tension cable poling, includes bottom plate, inserted block, installing frame, wire reel, stay cord and motor etc. bottom plate bottom is connected with the inserted block, and the bottom plate top is connected with the installing frame, and the rotation is connected with the wire reel in the installing frame, winds on the wire reel and has the stay cord, is connected with the motor on the installing frame, and wire reel front end and the output shaft of motor. According to the invention, the sliding ring is pushed to the right, so that the sliding ring pushes the clamping block to move inwards to clamp the high-voltage cable, and the high-voltage cable and the pull rope can be connected together rapidly, so that time can be saved, the motor can wind the pull rope, and the pull rope pulls the high-voltage cable to move to the right, so that the high-voltage cable passes through the pipeline.

Description

Tractor for high-voltage cable poling

Technical Field

The invention relates to a tractor, in particular to a tractor for a high-voltage cable tube.

Background

The high-voltage cable is a power cable for power transmission, and is generally buried underground, and when the high-voltage cable is buried, a pipeline needs to be buried underground, then the high-voltage cable passes through the pipeline, and the pipeline wraps the high-voltage cable, so that the high-voltage cable is protected.

Most tractors pull high-voltage cables through pull ropes, the high-voltage cables penetrate through pipelines, the end portions of the pull ropes are connected with steel wire mesh sleeves, in actual operation, workers penetrate through the pipelines, the steel wire mesh sleeves are sleeved at one ends of the high-voltage cables, then a plurality of iron wires are wound around the steel wire mesh sleeves, then iron wires are screwed by pliers, the steel wire mesh sleeves are connected with the high-voltage cables, finally the high-voltage cables are pulled through the pull ropes, the high-voltage cables penetrate through the pipelines, after the high-voltage cables penetrate through the pipelines, the iron wires are loosened by the pliers, then the steel wire mesh sleeves are taken out from the high-voltage cables, the pull ropes and the high-voltage cables are connected by the pliers, the iron wires are also required to be screwed by the pliers, the pull ropes and the high-voltage cables are more cumbersome to operate, and more time is consumed.

Disclosure of Invention

In order to overcome the defects that iron wires are needed to be twisted by a vice for connecting a pull rope with a high-voltage cable, and the iron wires are needed to be twisted by the vice for disconnecting the pull rope and the high-voltage cable, and a plurality of iron wires are needed, the operation is complicated and more time is needed to be consumed, the invention aims to provide the high-voltage cable threading tractor which is simple to operate and can save time.

The technical proposal is as follows: the utility model provides a tractor for high tension cable polishes, including bottom plate, inserted block, installing frame, wire reel, stay cord, motor, clamping mechanism and chucking mechanism, the bottom plate bottom is connected with the inserted block, and the bottom plate top is connected with the installing frame, and the rotation is connected with the wire reel in the installing frame, winds on the wire reel and has the stay cord, is connected with the motor on the installing frame, and the output shaft of wire reel front end and motor is equipped with the clamping mechanism that is used for holding high tension cable, is equipped with the chucking mechanism that is used for the secondary chucking of high tension cable on the clamping mechanism.

As the improvement of above-mentioned scheme, clamping mechanism is including link, slip ring, collar and clamping piece, and the stay cord left end is connected with the link, and the link left side is connected with the slip ring, and slip ring in the slip ring slip is equipped with the collar, and the collar outside slip is equipped with a plurality of clamping pieces that are used for holding high voltage cable.

As the improvement of above-mentioned scheme, chucking mechanism is including connecting block, inclined plane piece, first elastic component and pushing component, and the collar left side is connected with a plurality of connecting blocks, all rotates in the connecting block to be connected with the inclined plane piece that is used for holding high-voltage cable, is connected with first elastic component between connecting block and the inclined plane piece, is equipped with on the collar and is used for promoting inclined plane piece pivoted pushing component right.

As the improvement of above-mentioned scheme, promote the subassembly including annular pole and catch bar, the collar left side sideslip is equipped with annular pole, and annular pole internal connection has many catch bars that are used for promoting the inclined plane piece pivoted to the right, and the quantity of catch bar is unanimous with the quantity of inclined plane piece, catch bar and inclined plane piece contact.

As the improvement of above-mentioned scheme, still including the slide mechanism who is used for reducing frictional force, slide mechanism is equipped with four slide racks including slide rack, gyro wheel and wedge, the slip of collar outside, and slide rack left part all rotates to be connected with the gyro wheel that is used for reducing frictional force, and the slide ring outside is connected with four wedge, and every group has two wedge, and the wedge moves right and can contact with the slide rack.

As the improvement of above-mentioned scheme, still including automatic mechanism, automatic mechanism is including rotatory piece, the movable block, the swivel becket, the ejector pad, arc pole and second elastic component, the equal rotation in the connecting block outside is connected with the rotatable block, the annular pole internal connection has a plurality of movable blocks, the quantity of movable block is unanimous with the quantity of rotatable block, swivel becket and movable block slidingtype connection, the swivel becket left side swivelling is connected with the swivel becket, swivel becket left side is connected with a plurality of rotatory ejector pads that are used for promoting the rotatable block pivoted, the quantity of ejector pad is unanimous with the quantity of rotatable block, ejector pad and rotatory piece contact, be connected with the arc pole on one of them ejector pad, be connected with the second elastic component between arc pole and the slip ring.

As the improvement of above-mentioned scheme, still including canceling release mechanical system, canceling release mechanical system is including guide arm, third elastic component, go-between and fourth elastic component, all is equipped with the guide arm on the clamp block in a sliding manner, and the guide arm is all connected with the collar, is connected with the third elastic component between clamp block and the guide arm, and the collar outside is connected with the go-between, and the carriage slidingtype through-connection is connected with at least three fourth elastic component between slip ring and the go-between.

As the improvement of above-mentioned scheme, still including being used for making the slip ring automatic movement, make the slip ring pass the moving mechanism of pipeline, moving mechanism is including installing tube, mount and electronic wheel, and the link right side is connected with the installing tube, and the stay cord passes the installing tube, and the installing tube outside is connected with six at least groups of mounts, and every group has two mounts, all is connected with the electronic wheel that is used for making the slip ring automatic pass the pipeline on the mount in a rotary manner.

The beneficial effects of the invention are as follows: 1. according to the invention, the sliding ring is pushed to the right, so that the sliding ring pushes the clamping block to move inwards to clamp the high-voltage cable, and the high-voltage cable and the pull rope can be connected together rapidly, so that time can be saved, the motor can wind the pull rope, and the pull rope pulls the high-voltage cable to move to the right, so that the high-voltage cable passes through the pipeline.

2. The high-voltage cable stretches into the mounting ring and can push the inclined plane block to rotate rightwards, when the high-voltage cable is pulled, the high-voltage cable can be clamped by the inclined plane block, so that the high-voltage cable is more stable, and the high-voltage cable is prevented from falling off.

3. When pulling high tension cable, the gyro wheel can get into in the pipeline to roll at the pipeline inner wall, thereby can reduce frictional force, it is more smooth and easy when making the collar move right, and can avoid sliding ring and pipeline inside to take place the friction, avoid sliding ring wearing and tearing.

4. When the sliding ring moves leftwards, the pushing block is driven to move leftwards, the pushing block pushes the rotating block to rotate, the pushing rod is driven to move rightwards, the pushing rod pushes the inclined surface block to rotate rightwards, the high-voltage cable is loosened rapidly, and time is saved.

5. When the high-voltage cable passes through the pipeline, the sliding ring moves leftwards to reset under the action of the third elastic piece and the fourth elastic piece, and the clamping block moves outwards to reset, so that the high-voltage cable is automatically loosened, and the working efficiency can be improved.

6. After the electric wheel is started, the sliding ring can be driven to move leftwards, so that the sliding ring automatically passes through the pipeline, and the operation difficulty is reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the clamping mechanism of the present invention.

FIG. 3 is a schematic cross-sectional view of the clamping mechanism of the present invention.

Fig. 4 is an exploded view of the clamping mechanism of the present invention.

Fig. 5 is a schematic perspective view of a first embodiment of the clamping mechanism of the present invention.

Fig. 6 is a schematic view of a second perspective of the clamping mechanism of the present invention.

Fig. 7 is a schematic view of a third perspective structure of the clamping mechanism of the present invention.

Fig. 8 is a schematic perspective view of a sliding mechanism according to the present invention.

Fig. 9 is a schematic view showing a first perspective structure of the automatic mechanism of the present invention.

Fig. 10 is a schematic view of a second perspective of the robot of the present invention.

Fig. 11 is a schematic perspective view of a first part of the robot mechanism of the present invention.

Fig. 12 is a schematic view of a second partial perspective of the robot of the present invention.

Fig. 13 is a schematic perspective view of a reset mechanism according to the present invention.

Fig. 14 is a schematic perspective view of a moving mechanism according to the present invention.

Reference numerals in the figures: 1. the device comprises a bottom plate, 2, a plug block, 3, a mounting frame, 4, a wire reel, 5, a pull rope, 6, a motor, 7, a clamping mechanism, 71, a connecting frame, 72, a sliding ring, 73, a mounting ring, 74, a clamping block, 8, a clamping mechanism, 81, a connecting block, 82, an inclined surface block, 83, a first elastic piece, 84, an annular rod, 85, a push rod, 9, a sliding mechanism, 91, a sliding frame, 92, a roller, 93, a wedge block, 10, an automatic mechanism, 101, a rotating block, 102, a moving block, 103, a rotating ring, 104, a push block, 105, an arc rod, 106, a second elastic piece, 11, a reset mechanism, 111, a guide rod, 112, a third elastic piece, 113, a connecting ring, 114, a fourth elastic piece, 12, a moving mechanism, 121, a mounting tube, 122, a fixing frame, 123 and an electric wheel.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

The utility model provides a tractor for high tension cable poling, as shown in fig. 1-7, including bottom plate 1, insert 2, mounting frame 3, wire reel 4, stay cord 5, motor 6, clamping mechanism 7 and chucking mechanism 8, both sides all are connected with two inserts 2 around bottom plate 1 bottom, there is mounting frame 3 in the middle of the bottom plate 1 top through bolted connection, the internal rotation of mounting frame 3 is connected with wire reel 4, it has stay cord 5 to wind on the wire reel 4, there is motor 6 mounting frame 3 front side through bolted connection, wire reel 4 front end and motor 6's output shaft, be equipped with clamping mechanism 7 on the stay cord 5, clamping mechanism 7 is used for holding high tension cable, be equipped with chucking mechanism 8 on the clamping mechanism 7, chucking mechanism 8 is used for with high tension cable secondary chucking.

As shown in fig. 1-4, the clamping mechanism 7 comprises a connecting frame 71, a sliding ring 72, a mounting ring 73 and a clamping block 74, wherein the left end of the pull rope 5 is connected with the connecting frame 71, the left side of the connecting frame 71 is connected with the sliding ring 72 through bolts, the mounting ring 73 is arranged in the sliding ring 72 in a sliding manner, the clamping blocks 74 are arranged on the upper side, the lower side, the front side and the rear side of the mounting ring 73 in a sliding manner, inclined planes are arranged on the outer sides of the clamping blocks 74, the inclined planes gradually extend from right to left to the center of the mounting ring 73, and the sliding ring 72 moves rightwards to push the clamping blocks 74 to move inwards to clamp a high-voltage cable, so that the high-voltage cable and the pull rope 5 are connected together.

As shown in fig. 1, fig. 5, fig. 6 and fig. 7, the clamping mechanism 8 comprises a connecting block 81, an inclined surface block 82, a first elastic member 83 and a pushing assembly, four connecting blocks 81 are connected on the left side of the mounting ring 73 at equal intervals around the circumferential direction, the inclined surface block 82 is connected in the connecting block 81 in a rotating manner, the first elastic members 83 are respectively wound on two sides of the inclined surface block 82, two ends of the first elastic member 83 are respectively connected with the connecting block 81 and the inclined surface block 82, the first elastic member 83 is a torsion spring, the pushing assembly is arranged on the mounting ring 73 and is used for pushing the inclined surface block 82 to rotate rightwards, the high-voltage cable enters the mounting ring 73 and pushes the inclined surface block 82 to rotate rightwards, and the first elastic member 83 deforms, so that the inclined surface block 82 can clamp the high-voltage cable.

As shown in fig. 5, 6 and 7, the pushing assembly comprises an annular rod 84 and pushing rods 85, four guide grooves are uniformly spaced around the circumferential direction on the left side of the mounting ring 73, sliding rods are uniformly arranged in the guide grooves, the right ends of the sliding rods are connected with limiting blocks, the annular rod 84 is connected between the left ends of the sliding rods, four pushing rods 85 are uniformly spaced around the circumferential direction in the annular rod 84, the four pushing rods 85 are respectively contacted with four inclined surface blocks 82, the annular rod 84 can drive the pushing rods 85 to move rightwards, the pushing rods 85 can push the inclined surface blocks 82 to rotate rightwards, the inclined surface blocks 82 are not contacted with the high-voltage cables, and the high-voltage cables are loosened.

The staff buries the pipeline underground, then put the equipment on the right side of the pipeline, the insert block 2 is inserted in the soil, then the sliding ring 72 penetrates the pipeline, then the high-voltage cable stretches into the mounting ring 73, the high-voltage cable pushes the inclined surface block 82 to rotate rightwards, the first elastic piece 83 is deformed, the pull rope 5 is released from the wire spool 4, the staff pushes the sliding ring 72 rightwards, the sliding ring 72 pushes the clamping block 74 to move inwards, the clamping block 74 clamps the high-voltage cable, the high-voltage cable and the pull rope 5 are connected together, the inclined surface block 82 can clamp the high-voltage cable, the high-voltage cable is more stable, the staff controls the output shaft of the motor 6 to rotate anticlockwise, the wire spool 4 is driven to rotate anticlockwise, the pull rope 5 is retracted, the connecting frame 71 is driven to move rightwards through the pull rope 5, the sliding ring 72 is driven to move rightwards, and the high-voltage cable can be pulled to move rightwards, the high-voltage cable is led to pass through the pipeline, when the high-voltage cable passes through the pipeline, the motor 6 is closed, the sliding ring 72 is pushed leftwards, the sliding ring 72 does not squeeze the clamping block 74 any more, the clamping block 74 is pushed outwards, the clamping block 74 and the high-voltage cable are not contacted, the high-voltage cable is loosened, the worker pushes the annular rod 84 rightwards, the annular rod 84 drives the pushing rod 85 to move rightwards, the pushing rod 85 pushes the inclined surface block 82 to rotate rightwards, the first elastic piece 83 is deformed continuously, the inclined surface block 82 is not contacted with the high-voltage cable, thereby loosening the high-voltage cable, then pulling the high-voltage cable out of the mounting ring 73, loosening the annular rod 84 again, the inclined surface block 82 rotates leftwards under the action of the first elastic piece 83, the inclined surface block 82 pushes the annular rod 84 to move leftwards, the sliding rod cannot be removed from the guide groove under the action of the limiting block, the annular rod 84 is not disengaged from the mounting ring 73.

Example 2

On the basis of embodiment 1, as shown in fig. 1 and 8, the sliding mechanism 9 for reducing friction force is further included, the sliding mechanism 9 comprises a sliding frame 91, rollers 92 and wedge blocks 93, the sliding frame 91 is arranged on the right portion of the outer side of the mounting ring 73 in a sliding mode and uniformly spaced around the circumferential direction, two rollers 92 are rotatably connected to the left portion of the sliding frame 91, four groups of wedge blocks 93 are uniformly spaced around the circumferential direction and connected to the outer side of the sliding ring 72, each group of wedge blocks 93 is provided with two wedge blocks 93, the wedge blocks 93 move rightwards and are contacted with the sliding frame 91, the sliding frame 91 is pushed to move outwards, the rollers 92 are driven to move outwards, the rollers 92 are contacted with the inner wall of a pipeline, and the friction force can be reduced by the rollers 92.

When the sliding ring 72 moves rightwards, the wedge block 93 is driven to move rightwards, when the wedge block 93 moves rightwards and contacts with the sliding frame 91, the wedge block 93 pushes the sliding frame 91 to move outwards, the sliding frame 91 drives the roller 92 to move outwards, when the installation ring 73 moves rightwards into a pipeline, the roller 92 also enters the pipeline, the roller 92 contacts with the inside of the pipeline, the roller 92 rolls on the inner wall of the pipeline, so that friction force can be reduced, the installation ring 73 moves rightwards more smoothly, friction between the sliding ring 72 and the inside of the pipeline can be avoided, abrasion of the sliding ring 72 is avoided, and when the sliding ring 72 moves leftwards, the wedge block 93 is driven to move leftwards, and the wedge block 93 and the sliding frame 91 are not contacted.

As shown in fig. 1, fig. 9, fig. 10, fig. 11 and fig. 12, the automatic mechanism 10 is further included, the automatic mechanism 10 includes a rotating block 101, a moving block 102, a rotating ring 103, a pushing block 104, an arc rod 105 and a second elastic member 106, the outer sides of the connecting blocks 81 are all rotationally connected with the rotating block 101, four moving blocks 102 are uniformly spaced around the circumferential direction in the annular rod 84, both sides of the rotating block 101 are all opened with strip-shaped openings, the moving block 102 can slide in the strip-shaped openings, the rotating ring 103 is rotationally connected with the left side of the sliding ring 72, four pushing blocks 104 are uniformly spaced around the circumferential direction on the left side of the rotating ring 103 and are respectively contacted with the four rotating blocks 101, the top of the pushing block 104 above is connected with the arc rod 105, the arc rod 105 is rotationally connected with the second elastic member 106, both ends of the second elastic member 106 are respectively connected with the arc rod 105 and the sliding ring 72, the second elastic member 106 is a spring, and when the sliding ring 72 moves leftwards, the pushing block 104 is driven, the rotating block 104 is pushed to rotate leftwards, the rotating block 101 is driven to push the rotating block 101 to rotate around the arc rod 105, the rotating block 104 is driven to rotate around the arc rod 104 to push the arc rod 85 to rotate rightwards, and the rotating block 85 is driven to rotate the rotating rod 85 to rotate upwards, and the rotating rod 85 is driven to rotate upwards, and the rotating rod 85 is released.

Initially, the rotary block 101 blocks the push block 104, the second elastic piece 106 is in a compressed state, when the sliding ring 72 moves rightwards, the sliding ring 72 drives the rotary ring 103 to move rightwards, the rotary ring 103 drives the push block 104 to move rightwards, the push block 104 is not contacted with the rotary block 101, the rotary block 101 does not block the push block 104 any more, under the action of the second elastic piece 106, the arc-shaped rod 105 moves backwards, the upper push block 104 is driven to rotate anticlockwise by the arc-shaped rod 105, the rest three push blocks 104 are driven to rotate anticlockwise by the rotary ring 103, when the sliding ring 72 moves leftwards, the push block 104 is driven to push the rotary block 101 to rotate, the rotary block 101 drives the rotary block 102 to move rightwards, the rotary block 102 drives the annular rod 84 to move rightwards, so as to drive the push rod 85 to move rightwards, the push rod 85 pushes the inclined surface block 82 to rotate rightwards, the high-voltage cable is loosened, so that the high-voltage cable is loosened, time is saved, then workers pull the arc-shaped rod 105 forwards, the rest push block 104 above the arc-shaped rod 105 rotates clockwise, the push block 103 drives the rest push block 104 to rotate clockwise, the rotary block 104, and the rotary block 104 is driven by the rotary ring 103 to rotate leftwards, the reset block 104 is driven by the rotary block 104, and the rotary block 82 rotates leftwards, and the annular block 84 is driven to rotate, and the rotary block 82 rotates leftwards, and the rotary block 84 is driven to rotate, and the rotary block 84 is reset block is driven to rotate, and the rotary block 102 is reset, and the rotary block 82 rotates, and the rotary block 84 is reset, and the rotary block is driven to rotate, and the rotary block 102 is rotated, and the rotary block 104 is moved, and the rotary block 104 is moved, and the left.

As shown in fig. 1 and 13, the reset mechanism 11 further comprises a guide rod 111, a third elastic member 112, a connecting ring 113 and a fourth elastic member 114, the right part of the clamping block 74 is provided with the guide rod 111 in a sliding manner, the guide rod 111 is connected with the mounting ring 73, the guide rod 111 is provided with the third elastic member 112 in a winding manner, two ends of the third elastic member 112 are respectively connected with the clamping block 74 and the guide rod 111, the third elastic member 112 is a spring, the right part of the outer side of the mounting ring 73 is connected with the connecting ring 113, a guide opening matched with the sliding frame 91 is formed in the outer side of the connecting ring 113, the sliding frame 91 can slide in the guide opening, four fourth elastic members 114 are wound on the outer side of the connecting frame 71, and two ends of the fourth elastic members 114 are respectively connected with the sliding ring 72 and the connecting ring 113, and the fourth elastic members 114 are springs.

When the sliding ring 72 moves rightwards, the fourth elastic piece 114 is compressed, when the clamping block 74 moves inwards, the third elastic piece 112 is stretched, when the high-voltage cable passes through the pipeline, the motor 6 is closed, the pull rope 5 does not pull the sliding ring 72 rightwards any more, the sliding ring 72 loses tension, the sliding ring 72 moves leftwards under the action of the fourth elastic piece 114 to reset, the sliding ring 72 does not squeeze the clamping block 74 any more, and the clamping block 74 moves outwards under the action of the third elastic piece 112, so that the high-voltage cable can be automatically loosened, and the working efficiency is improved.

As shown in fig. 1 and 14, the device further comprises a moving mechanism 12 for automatically moving the sliding ring 72, so that the sliding ring 72 passes through a pipeline, the moving mechanism 12 comprises a mounting pipe 121, fixing frames 122 and electric wheels 123, the middle part of the right side of the connecting frame 71 is connected with the mounting pipe 121 through bolts, a pull rope 5 passes through the mounting pipe 121, six groups of fixing frames 122 are uniformly and alternately connected to the outer side of the mounting pipe 121, each group of fixing frames 122 is provided with two fixing frames 122, two electric wheels 123 are rotatably connected to the fixing frames 122, and the electric wheels 123 are started to enable the sliding ring 72 to automatically move, so that the sliding ring 72 passes through the pipeline.

The staff puts into the pipeline with installation tube 121, and electric wheel 123 and pipeline inner wall contact, and the staff can start electric wheel 123, and electric wheel 123 drives installation tube 121 and removes to left to drive slip ring 72 and remove to left, make slip ring 72 pass the pipeline voluntarily, thereby can reduce the operation degree of difficulty, after slip ring 72 passes the pipeline, close electric wheel 123.

The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. All equivalents and alternatives falling within the spirit of the invention are intended to be included within the scope of the invention. What is not elaborated on the invention belongs to the prior art which is known to the person skilled in the art.

Claims

1. The utility model provides a tractor for high tension cable poling, including bottom plate (1), inserted block (2) and installing frame (3), bottom plate (1) bottom is connected with inserted block (2), bottom plate (1) top is connected with installing frame (3), a serial communication port, still including wire reel (4), stay cord (5), motor (6), clamping mechanism (7) and chucking mechanism (8), rotation type is connected with wire reel (4) in installing frame (3), around having stay cord (5) on wire reel (4), be connected with motor (6) on installing frame (3), the output shaft of wire reel (4) front end and motor (6), be equipped with on stay cord (5) and be used for clamping mechanism (7) with high tension cable secondary chucking, be equipped with on clamping mechanism (7) and be used for clamping mechanism (8) with high tension cable secondary chucking.

2. The tractor for high-voltage cable threading of claim 1, wherein the clamping mechanism (7) comprises a connecting frame (71), a sliding ring (72), a mounting ring (73) and clamping blocks (74), the left end of the pull rope (5) is connected with the connecting frame (71), the left side of the connecting frame (71) is connected with the sliding ring (72), the mounting ring (73) is arranged in the sliding ring (72) in a sliding manner, and a plurality of clamping blocks (74) for clamping the high-voltage cable are arranged outside the mounting ring (73) in a sliding manner.

3. The tractor for high-voltage cable poling according to claim 2, wherein the clamping mechanism (8) comprises a connecting block (81), an inclined surface block (82), a first elastic piece (83) and a pushing component, the left side of the mounting ring (73) is connected with a plurality of connecting blocks (81), the inside of each connecting block (81) is rotationally connected with the inclined surface block (82) for clamping the high-voltage cable, the first elastic piece (83) is connected between each connecting block (81) and the inclined surface block (82), and the pushing component for pushing the inclined surface block (82) to rotate rightwards is arranged on the mounting ring (73).

4. A high voltage cable threading tractor according to claim 3 wherein the pushing assembly comprises an annular rod (84) and a pushing rod (85), the left side of the mounting ring (73) is provided with the annular rod (84), a plurality of pushing rods (85) for pushing the inclined surface blocks (82) to rotate rightwards are connected in the annular rod (84), the number of the pushing rods (85) is consistent with the number of the inclined surface blocks (82), and the pushing rods (85) are in contact with the inclined surface blocks (82).

5. The tractor for high-voltage cable through pipes according to claim 2, further comprising a sliding mechanism (9) for reducing friction force, wherein the sliding mechanism (9) comprises a sliding frame (91), rollers (92) and wedge blocks (93), four sliding frames (91) are slidably arranged on the outer side of the mounting ring (73), the rollers (92) for reducing friction force are rotatably connected to the left part of the sliding frame (91), four groups of wedge blocks (93) are connected to the outer side of the sliding ring (72), each group of wedge blocks (93) are provided with two wedge blocks (93), and the wedge blocks (93) move rightwards to be in contact with the sliding frame (91).

6. The high-voltage cable threading tractor according to claim 4, further comprising an automatic mechanism (10), wherein the automatic mechanism (10) comprises a rotating block (101), a moving block (102), a rotating ring (103), pushing blocks (104), arc rods (105) and a second elastic piece (106), the rotating block (101) is rotationally connected to the outer side of the connecting block (81), a plurality of moving blocks (102) are connected to the annular rod (84), the number of the moving blocks (102) is consistent with that of the rotating blocks (101), the rotating blocks (101) are connected with the moving blocks (102) in a sliding mode, the rotating ring (103) is rotationally connected to the left side of the sliding ring (72), a plurality of pushing blocks (104) for pushing the rotating blocks (101) to rotate are connected to the left side of the rotating ring (103), the number of the pushing blocks (104) is consistent with that of the rotating blocks (101), one pushing blocks (104) are in contact with the rotating blocks (101), the arc rods (105) are connected to the arc rods (104), and the second elastic piece (106) is connected between the arc rods (105) and the sliding ring (72).

7. The tractor for high-voltage cable through pipes according to claim 5, further comprising a reset mechanism (11), wherein the reset mechanism (11) comprises a guide rod (111), a third elastic piece (112), a connecting ring (113) and a fourth elastic piece (114), the guide rod (111) is arranged on the clamping block (74) in a sliding mode, the guide rod (111) is connected with the mounting ring (73), the third elastic piece (112) is connected between the clamping block (74) and the guide rod (111), the connecting ring (113) is connected to the outer side of the mounting ring (73), the sliding frame (91) penetrates through the connecting ring (113) in a sliding mode, and at least three fourth elastic pieces (114) are connected between the sliding ring (72) and the connecting ring (113).

8. The tractor for high-voltage cable threading of claim 2 further comprising a moving mechanism (12) for automatically moving the sliding ring (72) to enable the sliding ring (72) to pass through a pipeline, wherein the moving mechanism (12) comprises a mounting tube (121), a fixing frame (122) and an electric wheel (123), the right side of the connecting frame (71) is connected with the mounting tube (121), a pull rope (5) passes through the mounting tube (121), at least six groups of fixing frames (122) are connected to the outer side of the mounting tube (121), each group of fixing frames (122) is provided with two fixing frames (122), and the electric wheel (123) for enabling the sliding ring (72) to automatically pass through the pipeline is rotatably connected to the fixing frames (122).