Overhead line obstacle-surmounting automatic trolley

Abstract

The application belongs to the technical field of power transmission line construction, and particularly relates to an overhead line obstacle-surmounting automatic trolley for high-altitude operation, which comprises a fixed plate, a walking assembly and an obstacle-surmounting assembly, two symmetrical Y-shaped connecting rods are detachably fixedly connected to the two ends of the fixed plate, a plurality of protection rods are arranged on the two Y-shaped connecting rods, a bearing frame is arranged at the bottom end of the two Y-shaped connecting rods, two symmetrical mounting blocks are detachably fixed to the two ends of the fixed plate, two mounting holes are formed in the mounting blocks, the Y-shaped connecting rods extend to above the mounting holes through the mounting holes at the top ends, mounting screws are arranged at the top of the Y-shaped connecting rods, mounting nuts are threadedly connected to the mounting screws, and the walking assembly is arranged at the two ends of the fixed plate and used for trolley movement. In the obstacle-surmounting process, the fixed plate is always in a horizontal state, and the staff does not need to bear the risk of inclination, thereby effectively solving the safety hidden danger caused by the inclination of the suspension plate in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of power transmission line construction technology, and in particular relates to an automatic trolley for overcoming obstacles on overhead lines during high-altitude operations. Background Technology

[0002] In the operation and maintenance of overhead power lines, workers at height need to use pulleys to be suspended on the cables and move along the cables to complete maintenance and installation work. During the movement of the pulleys along the cables, spacers and insulators on the cables can obstruct the movement of the pulleys. Therefore, obstacle-crossing pulleys have become one of the core pieces of equipment to ensure the safety and efficiency of high-altitude operations.

[0003] Existing patents, such as CN119419642B, disclose an automatic trolley for overcoming obstacles in live-line work. It includes a suspension plate, and a wire inlet groove is provided on the lower side of one end of the suspension plate. This patent allows the drive wheel to cross obstacles on the power line without stopping the trolley, thus improving the efficiency of the trolley.

[0004] The existing device also has the following shortcomings:

[0005] 1. During the obstacle crossing process, when the pulley near the obstacle moves upward, the cable inlet groove on the same side will move downward under the action of gravity to contact the cable. Since one end of the suspension plate is in contact with the cable, the suspension plate is tilted, causing the workers to be in a tilted position, which poses a significant safety hazard.

[0006] 2. In the process of overcoming obstacles, the two ends of the suspension plate contact the cable through the cable inlet groove and the pulley, respectively. When the pulley rotates to move the suspension plate, relative sliding occurs between the cable inlet groove and the cable, which can easily damage the cable.

[0007] 3. During the obstacle-crossing process, the existing device follows an alternating motion logic of "the pulley at the end closest to the obstacle moves up (the cable inlet groove moves down and contacts the cable) - the pulley at the end closest to the obstacle moves down and contacts the cable - the pulley at the other end moves up (the cable inlet groove moves down and contacts the cable) - the pulley at the other end moves down and contacts the cable". During this process, the trolley as a whole is in a state of frequent up and down bumping. This bumping will cause the trolley and the operator to repeatedly experience overweight and weightlessness. On the one hand, it is easy to cause discomfort to the operator and reduce the stability of operation. On the other hand, it will generate impact load on the mechanical structure of the trolley, accelerate the fatigue damage of the components, and further expand the safety hazards in the tilted state. Summary of the Invention

[0008] The purpose of this invention is to address the problems mentioned in the background section by providing an automatic trolley for overpassing obstacles on overhead lines for high-altitude operations.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: an automatic obstacle-crossing trolley for high-altitude operations on overhead power lines, comprising:

[0010] A fixing plate, wherein two symmetrical Y-shaped connecting rods are detachably and fixedly connected to both ends of the fixing plate, and multiple protective rods are provided on the two Y-shaped connecting rods, and a bearing frame is provided at the bottom of the two Y-shaped connecting rods;

[0011] The traveling components are located at both ends of the fixed plate and are used for the movement of the trolley;

[0012] An obstacle-crossing assembly, mounted on the fixed plate, is used for the trolley to cross obstacles.

[0013] Furthermore, two symmetrical mounting blocks are detachably fixed at both ends of the fixing plate. Two mounting holes are provided on the mounting blocks. The top end of the Y-shaped connecting rod extends through the mounting hole to the top of the mounting hole. The top of the Y-shaped connecting rod is provided with a mounting screw, and a mounting nut is threaded onto the mounting screw.

[0014] Furthermore, the walking assembly includes two outer pulley brackets and two inner pulley brackets, each with a pulley rotatably connected to it. Each of the two Y-shaped connecting rods is provided with a connecting pin, and each of the two connecting pins is rotatably connected to an outer pulley bracket and an inner pulley bracket.

[0015] Furthermore, the walking assembly also includes a driving component for driving the pulley to rotate. The driving component includes a driving motor fixed on the outer pulley bracket and the inner pulley bracket. The output shaft of the driving motor is provided with a driving gear, and the central shaft of the pulley is provided with a driven gear that meshes with the driving gear. When the driving motor rotates, it drives the pulley to rotate, causing the pulley to move on the cable.

[0016] Furthermore, the obstacle-crossing assembly includes two first links and two second links. One end of each of the two first links is rotatably connected to two outer pulley brackets, and the other end of each of the two first links is rotatably connected via a connecting pin. One end of each of the two second links is rotatably connected to two inner pulley brackets, and the other end of each of the two second links is rotatably connected via a connecting pin.

[0017] Furthermore, the obstacle-crossing assembly also includes a support shaft rotatably connected to the fixed plate. The support shaft is provided with a cam disk. A first cam groove is formed on the end face of the cam disk near the first connecting rod. The end of the connecting long pin away from the first connecting rod is slidably disposed in the first cam groove. A second cam groove is formed on the end face of the cam disk near the second connecting rod. The end of the connecting pin away from the second connecting rod is slidably disposed in the second cam groove. When the connecting long pin and the connecting pin shaft move upward / downward, the outer pulley bracket and the inner pulley bracket rotate around the connecting pin to lift / lower the pulleys on them to achieve obstacle crossing / reset.

[0018] Furthermore, the fixed plate is provided with a first limiting groove and a second limiting groove. The connecting long pin passes through the first limiting groove and slides in cooperation with the first limiting groove. The connecting pin passes through the second limiting groove and slides in cooperation with the second limiting groove. When the cam disk rotates, the connecting long pin and the connecting pin can achieve three states: moving upward, moving downward, and remaining stationary.

[0019] Furthermore, the obstacle-crossing assembly also includes an obstacle-crossing motor and a worm gear reducer fixed to the fixed plate. The obstacle-crossing motor and the worm gear reducer are driven by a spur gear. The output shaft of the worm gear reducer is connected to the support shaft by a coupling. When the obstacle-crossing motor rotates, it drives the cam disk to rotate slowly.

[0020] Furthermore, one of the mounting blocks is equipped with an ultrasonic sensor, and the support frame is equipped with a PLC controller. The ultrasonic sensor is used to identify obstacles and transmit information to the PLC controller. The PLC controller controls the obstacle-crossing motor to rotate according to the obstacle information.

[0021] Furthermore, the support rod of the Y-shaped connecting rod away from the fixed plate is composed of a short rod and a connecting sleeve that are detachably and fixedly connected.

[0022] Compared with existing technologies, the advantages of this invention are:

[0023] 1. This invention, through the grouping design of the outer pulley bracket and the inner pulley bracket, combined with the coordinated control of the fixed diameter section and the variable diameter section of the cam plate, ensures that at least two pulleys are always in stable contact with the cable and continuously driven during obstacle crossing, so that the fixed plate is always in a horizontal state. Workers do not need to bear the risk of tilting, effectively solving the safety hazards caused by the tilting of the suspension plate in the prior art.

[0024] 2. In this invention, both walking and obstacle-crossing actions are accomplished through the rolling contact between the pulley and the cable. When walking, the drive motor drives the pulley to roll and move. When crossing an obstacle, after the outer pulley bracket / inner pulley bracket is lifted, the pulleys on the inner pulley bracket / outer pulley bracket still drive the trolley to move in a rolling manner to cross the obstacle. The rolling friction coefficient is much smaller than the sliding friction, which can effectively avoid scratching and wear on the cable insulation layer and ensure the insulation performance and service life of the transmission line.

[0025] 3. The present invention ensures that the height of the fixed plate remains constant and does not tilt back and forth when crossing obstacles, effectively preventing the pulley and workers from repeatedly experiencing overweight and weightlessness. This not only improves the stability of the operator's operation, but also reduces the impact load on the mechanical structure, delays component fatigue damage, and extends the overall service life of the equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0027] Figure 2 This is another angle schematic diagram of the overall structure of an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0028] Figure 3 This is a schematic diagram of the Y-shaped connecting rod structure in an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0029] Figure 4 This is a schematic diagram of the fixed plate structure of an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0030] Figure 5 This is a schematic diagram of the mounting block structure of an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0031] Figure 6 This is a schematic diagram of the walking component structure of an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0032] Figure 7 This is a schematic diagram of the inner pulley support structure of an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0033] Figure 8 This is a schematic diagram of the outer pulley support structure of an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0034] Figure 9 This is a schematic diagram of the obstacle-crossing component structure in an automatic obstacle-crossing trolley for overhead lines provided by the present invention.

[0035] Figure 10 This is a schematic diagram of the obstacle-crossing component of an automatic obstacle-crossing trolley for overhead lines provided by the present invention from another angle.

[0036] Figure 11 This is a schematic diagram of the obstacle-crossing component in an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention.

[0037] Figure 12 This is a schematic diagram of the first cam groove structure in an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention;

[0038] Figure 13 This is a schematic diagram of the second cam groove structure in an automatic obstacle-crossing trolley for high-altitude operations provided by the present invention.

[0039] In the figure, 10 is the fixing plate, 11 is the Y-shaped connecting rod, 12 is the bearing frame, 13 is the mounting block, 101 is the first limiting groove, 102 is the second limiting groove, 111 is the mounting screw, 112 is the mounting nut, 113 is the short rod, 114 is the connecting sleeve, and 131 is the mounting hole.

[0040] 20 Outer pulley bracket, 21 Inner pulley bracket, 22 Connecting pin, 23 Pulley, 24 Drive motor, 25 Drive gear, 26 Driven gear;

[0041] 31 First connecting rod, 32 Second connecting rod, 33 Connecting long pin, 34 Connecting pin, 35 Support shaft, 36 Cam plate, 361 First cam groove, 362 Second cam groove, 37 Obstacle crossing motor, 38 Worm gear reducer;

[0042] 4. Ultrasonic sensor. Detailed Implementation

[0043] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0044] like Figures 1-13 As shown, an automatic obstacle-crossing trolley for high-altitude operations includes a fixed plate 10, a traveling assembly, and an obstacle-crossing assembly. Two symmetrical Y-shaped connecting rods 11 are detachably and fixedly connected to both ends of the fixed plate 10. The support rods of the Y-shaped connecting rods 11 away from the fixed plate 10 are composed of short rods 113 and connecting sleeves 114 that are detachably and fixedly connected. During operation, the fixing screws of the connecting sleeves 114 are removed, and the connecting sleeves 114 are moved up or down, exposing a gap in the support rods of the Y-shaped connecting rods 11 away from the fixed plate 10. The cable is then passed through the gap, and four pulleys 23 are placed on the cable to hang the device. The device is easy to hang. The connecting sleeves 114 are then reset and fixed, thus enclosing the cable inside the Y-shaped connecting rods 11. In the event of an accident causing the pulleys 23 to detach from the cable, the device will not fall, ensuring the safety of the workers.

[0045] The fixed plate 10 has two symmetrical mounting blocks 13 that can be detachably fixed at both ends. The mounting blocks 13 have two mounting holes 131. The top of the Y-shaped connecting rod 11 extends through the mounting hole 131 and above the mounting hole 131. The top of the Y-shaped connecting rod 11 is provided with a mounting screw 111, and the mounting screw 111 is threaded with a mounting nut 112. The two Y-shaped connecting rods 11 are provided with multiple protective rods. The bottom of the two Y-shaped connecting rods 11 is provided with a bearing frame 12. The bearing frame 12 contains a battery box, which provides power to the device. The bearing frame 12 provides a working platform for the staff, and the protective rods provide safety protection for the staff.

[0046] The walking components are located at both ends of the fixed plate 10 for the movement of the trolley, and the obstacle crossing components are located on the fixed plate 10 for the trolley to cross obstacles. One of the mounting blocks 13 is equipped with an ultrasonic sensor 4, and the bearing frame 12 is equipped with a PLC controller. The ultrasonic sensor 4 is used to identify obstacles and transmit information to the PLC controller. The PLC controller controls the obstacle crossing components to cross obstacles according to the obstacle information.

[0047] The walking assembly includes two outer pulley brackets 20 and two inner pulley brackets 21. Pulleys 23 are rotatably connected to both the outer pulley brackets 20 and the inner pulley brackets 21. Connecting pins 22 are provided on both Y-shaped connecting rods 11. One outer pulley bracket 20 and one inner pulley bracket 21 are rotatably connected to each of the two connecting pins 22. The walking assembly also includes a driving component for driving the pulleys 23 to rotate. The driving component includes a driving motor 24 fixed on the outer pulley brackets 20 and the inner pulley brackets 21. A driving gear 25 is provided on the output shaft of the driving motor 24. A driven gear 26 that meshes with the driving gear 25 is provided on the central shaft of the pulley 23. Specifically, the driving gear 25 and the driven gear 26 are in a speed reduction transmission relationship. When the driving motor 24 rotates, it drives the pulley 23 to rotate, causing the pulley 23 to move on the cable.

[0048] The obstacle-crossing assembly includes two first links 31 and two second links 32. One end of each of the two first links 31 is rotatably connected to two outer pulley brackets 20, and the other end of each of the two first links 31 is rotatably connected via a connecting long pin 33. One end of each of the two second links 32 is rotatably connected to two inner pulley brackets 21, and the other end of each of the two second links 32 is rotatably connected via a connecting pin 34.

[0049] The obstacle-crossing assembly also includes a support shaft 35 rotatably connected to the fixed plate 10. The support shaft 35 is provided with a cam disk 36. The end face of the cam disk 36 near the first connecting rod 31 is provided with a first cam groove 361. The end of the connecting long pin 33 away from the first connecting rod 31 is slidably disposed in the first cam groove 361. The end face of the cam disk 36 near the second connecting rod 32 is provided with a second cam groove 362. The end of the connecting pin 34 away from the second connecting rod 32 is slidably disposed in the second cam groove 362. When the connecting long pin 33 and the connecting pin 34 move up / down, the outer pulley bracket 20 and the inner pulley bracket 21 rotate around the connecting pin 22 to lift / lower the pulley 23 on it to achieve obstacle crossing / reset.

[0050] Specifically, the first cam groove 361 and the second cam groove 362 are both composed of a fixed diameter section and a variable diameter section. The initial positions of the connecting long pin 33 and the connecting pin 34 are both at the junction of the fixed diameter section and the variable diameter section. The end of the first cam groove 361 near the center is the fixed diameter section, and the end of the second cam groove 362 near the center is the variable diameter section.

[0051] The fixed plate 10 is provided with a first limiting groove 101 and a second limiting groove 102. The connecting long pin 33 passes through the first limiting groove 101 and slides in cooperation with the first limiting groove 101. The connecting pin 34 passes through the second limiting groove 102 and slides in cooperation with the second limiting groove 102. When the cam disk 36 rotates, the connecting long pin 33 and the connecting pin 34 can achieve three states: moving upward, moving downward, and remaining stationary. Specifically, when the connecting long pin 33 and the connecting pin 34 are in the fixed diameter section, the rotation of the cam disk 36 will not drive the connecting long pin 33 and the connecting pin 34 to move. When the connecting long pin 33 and the connecting pin 34 are in the variable diameter section, the rotation of the cam disk 36 will drive the connecting long pin 33 and the connecting pin 34 to move upward / downward.

[0052] The obstacle crossing assembly also includes an obstacle crossing motor 37 and a worm gear reducer 38 fixed on the fixed plate 10. The obstacle crossing motor 37 and the worm gear reducer 38 are driven by a spur gear. The output shaft of the worm gear reducer 38 is connected to the support shaft 35 by a coupling. When the obstacle crossing motor 37 rotates, it drives the cam disk 36 to rotate slowly.

[0053] The working principle of this invention is as follows:

[0054] Trolley installation: Remove the fixing screws of the connecting sleeve 114 and move the connecting sleeve 114 up or down so that the Y-shaped connecting rod 11 is away from the support rod of the fixing plate 10 and the gap is exposed. Then, put the cable through the gap and hang the device on the cable. Then, reset and fix the connecting sleeve 114. By modularizing one support rod of the Y-shaped connecting rod 11, the trolley installation steps are simplified and the work efficiency is improved.

[0055] Slide trolley movement: Turn on the drive motor 24, drive motor 24 drives drive gear 25 to rotate, thereby driving driven gear 26 to rotate, so that the slide trolley can move on the cable;

[0056] Obstacle crossing by the trolley: When the ultrasonic sensor 4 detects an obstacle ahead, it transmits the information to the PLC controller. The PLC controller controls the obstacle crossing motor 37 to drive the cam disk 36 to rotate. Since the first cam groove 361 and the second cam groove 362 are located on opposite end faces of the cam disk 36, the rotation directions of the first cam groove 361 and the second cam groove 362 are always opposite (when observing the rotation direction from the two end faces respectively). Figures 12-13 Taking the orientation shown as an example, when crossing an obstacle, the first cam groove 361 first rotates 180° clockwise, then the second cam groove 362 rotates 180° counterclockwise. The connecting long pin 33 enters the variable diameter section while the connecting pin 34 enters the fixed diameter section. The connecting long pin 33 is further and further away from the center of the cam disk 36. Under the action of the limiting groove 101, the connecting long pin 33 moves upward along the first limiting groove 101. Thus, under the action of the first connecting rod 31, it drives the outer pulley bracket 20 to swing upward and lift the pulley 23 on it, so that the pulley 23 close to the obstacle can cross the obstacle. During this process, since the connecting pin 34 is in the fixed diameter section, the position of the connecting pin 34 remains unchanged, so the position of the inner pulley bracket 21 remains unchanged, and the pulley 23 on the inner pulley bracket 21 drives the trolley to move.

[0057] After the first pulley 23 clears the obstacle, the first cam groove 361 rotates 180° counterclockwise to reset the outer pulley bracket 20. Then, the first cam groove 361 continues to rotate 180° counterclockwise, connecting the long pin 33 into the fixed diameter section and the connecting pin 34 into the variable diameter section. Similarly, at this time, the position of the outer pulley bracket 20 remains unchanged, the inner pulley bracket 21 swings upward, and the two pulleys 23 on the inner pulley bracket 21 are lifted to clear the obstacle. The pulleys 23 on the outer pulley bracket 20 drive the trolley to move. After the two pulleys 23 on the inner pulley bracket 21 clear the obstacle, the first cam groove 361 rotates 360° clockwise again to clear the obstacle of the last pulley 23. After the last pulley 23 clears the obstacle, the first cam groove 361 rotates 180° counterclockwise to reset the outer pulley bracket 20. In this way, the trolley clears the obstacle.

[0058] This invention, through the grouped design of the outer pulley bracket 20 and the inner pulley bracket 21, combined with the coordinated control of the fixed-diameter section and the variable-diameter section of the cam plate 36, ensures that at least two pulleys 23 maintain stable contact with the cable and continue to drive it during obstacle crossing, keeping the fixed plate 10 in a horizontal state at all times. This eliminates the risk of tilting for workers and effectively solves the safety hazards caused by the tilting of the suspension plate in existing technologies. Furthermore, both walking and obstacle crossing actions are completed through the rolling contact between the pulleys 23 and the cable, effectively avoiding scratching and wear on the cable insulation layer, ensuring the insulation performance and service life of the transmission line. In addition, the height of the fixed plate 10 remains constant during obstacle crossing and does not tilt back and forth, effectively preventing the trolley and workers from repeatedly experiencing overweight and weightlessness. This improves the operational stability of the workers, reduces the impact load on the mechanical structure, delays component fatigue damage, and extends the overall service life of the equipment.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An aerial line obstacle-avoiding automatic trolley for aerial work, characterized in that, include: The fixed plate (10) has two symmetrical Y-shaped connecting rods (11) that are detachably fixed at both ends. The bottom ends of the two Y-shaped connecting rods (11) are provided with a bearing frame (12). The walking assembly includes two outer pulley brackets (20) and two inner pulley brackets (21). Each of the outer pulley brackets (20) and the inner pulley brackets (21) is rotatably connected to a pulley (23). Each of the two Y-shaped connecting rods (11) is provided with a connecting pin (22). Each of the two connecting pins (22) is rotatably connected to an outer pulley bracket (20) and an inner pulley bracket (21). The walking assembly also includes a driving component for driving the pulleys (23) to rotate. The obstacle-crossing assembly includes two first links (31) and two second links (32). One end of each of the two first links (31) is rotatably connected to two outer pulley brackets (20), and the other end of each of the two first links (31) is rotatably connected by a connecting long pin (33). One end of each of the two second links (32) is rotatably connected to two inner pulley brackets (21), and the other end of each of the two second links (32) is rotatably connected by a connecting pin (34). The connecting long pin (33) and the connecting pin (34) are both in sliding fit with the fixed plate (10). When the connecting long pin (33) and the connecting pin (34) move up / down, the outer pulley brackets (20) and the inner pulley brackets (21) rotate around the connecting pin (22) to lift / lower the pulleys on them to achieve obstacle crossing / reset. The obstacle-crossing assembly also includes a support shaft (35) rotatably connected to the fixed plate (10). The support shaft (35) is provided with a cam disk (36). The cam disk (36) has a first cam groove (361) on its end face near the first connecting rod (31). The end of the connecting long pin (33) away from the first connecting rod (31) is slidably disposed in the first cam groove (361). The end face of the cam disk (36) near the second connecting rod (32) has a second cam groove (362). The end of the connecting pin (34) away from the second connecting rod (32) is slidably disposed in the second cam groove (362). The fixed plate (10) is provided with a first limiting groove (101) and a second limiting groove (102). The connecting long pin (33) passes through the first limiting groove (101) and slides in cooperation with the first limiting groove (101). The connecting pin (34) passes through the second limiting groove (102) and slides in cooperation with the second limiting groove (102). When the cam disk (36) rotates, the connecting long pin (33) and the connecting pin (34) can achieve three states: moving upward, moving downward, and remaining stationary.

2. The automatic obstacle-crossing trolley for high-altitude operations on overhead lines according to claim 1, characterized in that, The fixing plate (10) has two symmetrical mounting blocks (13) that can be detachably fixed at both ends. The mounting blocks (13) have two mounting holes (131). The top end of the Y-shaped connecting rod (11) extends through the mounting hole (131) to the top of the mounting hole (131). The top of the Y-shaped connecting rod (11) is provided with a mounting screw (111), and the mounting screw (111) is threaded with a mounting nut (112).

3. The automatic obstacle-crossing trolley for high-altitude operations on overhead lines according to claim 1, characterized in that, Multiple protective bars are provided on the two Y-shaped connecting rods (11).

4. The automatic obstacle-crossing trolley for high-altitude operations on overhead lines according to claim 1, characterized in that, The driving component includes a drive motor (24) fixed on the outer pulley bracket (20) and the inner pulley bracket (21). The output shaft of the drive motor (24) is provided with a drive gear (25). The central shaft of the pulley (23) is provided with a driven gear (26) that meshes with the drive gear (25). When the drive motor (24) rotates, it drives the pulley (23) to rotate, causing the pulley (23) to travel on the cable.

5. The automatic obstacle-crossing trolley for high-altitude operations on overhead lines according to claim 2, characterized in that, The obstacle crossing assembly also includes an obstacle crossing motor (37) and a worm gear reducer (38) fixed on the fixed plate (10). The obstacle crossing motor (37) and the worm gear reducer (38) are driven by a spur gear. The output shaft of the worm gear reducer (38) is connected to the support shaft (35) by a coupling. When the obstacle crossing motor (37) rotates, it drives the cam disk (36) to rotate slowly.

6. The automatic obstacle-crossing trolley for high-altitude operations on overhead lines according to claim 5, characterized in that, An ultrasonic sensor (4) is provided on one of the mounting blocks (13), and a PLC controller is provided in the bearing frame (12). The ultrasonic sensor (4) is used to identify obstacles and transmit information to the PLC controller. The PLC controller controls the obstacle-crossing motor (37) to rotate according to the obstacle information.

7. The automatic obstacle-crossing trolley for high-altitude operations on overhead lines according to claim 1, characterized in that, The Y-shaped connecting rod (11) away from the fixed plate (10) is composed of a short rod (113) and a connecting sleeve (114) that are detachably and fixedly connected.

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