A transmission line overhead transmission line engineering line construction pulley

Abstract

The present invention relates to a construction pulley for overhead power transmission line engineering, which belongs to the technical field of construction pulleys. It includes a bracket, a fixing assembly, and a conductive wheel. The conductive wheel is connected to the bracket through a grounding assembly. An air bag is provided on the conductive wheel, and an electrode sheet is provided on the air bag. The grounding assembly is located on both sides of the conductive wheel and connected to the bracket. The grounding assembly includes a wire take-up rod and a connecting wire. A conductive column is provided on the bracket, and one end of the wire take-up rod is connected to the conductive column, and a grounding wire is provided on the conductive column. The grounding assembly is connected to the conductive wheel through a transmission assembly. The transmission assembly includes a first gear set and a second gear set, and corresponding limit gears are provided on the wire take-up rods on both sides. The present invention provides a construction pulley for overhead power transmission line engineering, which solves the problems of wear and pulling by optimizing the design of the grounding assembly, the transmission assembly and the conductive wheel, improves the construction efficiency and quality, enhances the stability and safety, and improves the current transmission performance.

Description

Technical Field

[0001] The invention relates to a transmission line overhead transmission line engineering wire-laying construction pulley, belonging to the technical field of construction pulleys. Background Art

[0002] Currently, in the process of overhead wire construction in the electric power field, transmission line engineering wire construction pulleys are often used. They are mainly used to protect the cable conductors when laying, saving time and effort. They can also be used where the cable changes direction to protect the cable from being damaged by friction.

[0003] The Chinese patent application with application number CN202211092267.9 discloses a grounding pulley structure for power line construction, including an airbag on the surface of a conductive wheel, a flexible electrode sheet attached to the surface of the airbag, and the two ends of the electrode sheet are tightly fitted with the conductive wheel. The airbag is connected to a pneumatic structure, and the conductive wheel is connected to two sets of stranding wheels through the pneumatic structure. The pneumatic structure drives the two sets of stranding wheels to move back and forth alternately. When the grounding pulley structure for power line construction is connected to electricity, the conductive electrode rotates synchronously with the stranding wheel and the conductive wheel.

[0004] However, during use, the conductive wheel moves synchronously with the stranding wheel. When the wire passes quickly, it needs to frequently engage with the stranding wheels on both sides alternately, which increases wear. In addition, when the wire moves to the middle position, the weight of the wire increases, which can easily cause wire pulling problems. Summary of the invention

[0005] The invention provides a transmission line overhead transmission line engineering wire construction pulley to solve the problems in the prior art of frequent alternating engagement with the twisting wheels on both sides, which increases wear and the increased weight of the wire makes it easy for the wire to be pulled.

[0006] The present invention provides a transmission line overhead transmission line engineering line construction pulley, which comprises a bracket, a fixing component, and a conductive wheel. The conductive wheel is connected to the bracket through a grounding component. The fixing component is located on the bracket to fix the bracket. The conductive wheel is located at both ends of the bracket. An air bag is provided on the conductive wheel, and an electrode sheet is provided on the air bag. The grounding assembly is located on both sides of the conductive wheel and connected to the bracket. The grounding assembly includes a wire take-up rod and a connecting wire. The connecting wires are respectively connected to the wire take-up rods at both ends. A conductive column is provided on the bracket, wherein the wire take-up rod at one end is connected to the conductive column, and a grounding wire is provided on the conductive column; The grounding component is connected to the conductive wheel through a transmission component, and the transmission component includes a first gear group and a second gear group. The first gear group is located at both ends of the conductive wheel, and limiting gears are provided on the wire-receiving rollers on both sides. The wire-receiving roller on one side is meshed with the first gear group at the corresponding end through the limiting gear, and the wire-receiving roller on the other side is meshed with the first gear group through the second gear group.

[0007] Preferably, two ends of the connecting line are respectively wound around the wire take-up rollers on both sides, and the first gear set is a reduction gear set.

[0008] Preferably, the second gear set includes a first gear and a second gear, the first gear is meshed with the first gear set, the first gear is meshed with the inner diameter of the second gear, and the outer diameter of the second gear is meshed with the limiting gear.

[0009] Preferably, the grounding component is provided with a support shaft corresponding to the transmission component, and the support shaft is provided with a telescopic component at one end close to the wire-reeling roller, and the support shaft drives the first gear set to move along the direction of the support shaft through the telescopic component.

[0010] Preferably, corresponding conductive electrodes are provided between the conductive wheel and the wire take-up rollers on both sides, and carbon brushes are provided on the conductive electrodes.

[0011] Preferably, a coaxial support plate is provided inside the conductive wheel, and the support plate drives the first gear set to rotate around the support shaft as the center.

[0012] Preferably, the first gear group and the support plate are connected by an adjustment component, and the adjustment component includes an adjustment rod, an adjustment frame, an adjustment gear, and an adjustment rack. The two ends of the adjustment rod are respectively fixedly connected to the first gear group and the adjustment frame, the adjustment gear is meshed with the adjustment rack, the adjustment rack is fixedly connected to the support plate, and the adjustment rack passes through the upper and lower ends of the adjustment frame and is slidably connected to the adjustment frame and remains level with the surface of the adjustment frame.

[0013] Preferably, the conductive wheel is provided with a counterweight block, the counterweight block is located on the conductive wheel and is distributed in a circumferential manner, the conductive wheel is provided with a connecting block corresponding to the counterweight block, and the counterweight block and the connecting block are connected by a connecting rod.

[0014] Preferably, the top of the connecting rod is rotatably connected to the connecting block, and the bottom is fixedly connected to the counterweight block, and the connecting rod is in a vertical downward state.

[0015] Preferably, a limit assembly is provided at the bottom of the grounding assembly, and the limit assembly includes a limit frame and a limit wheel. The two ends of the limit frame are respectively connected to the supporting shafts on both sides, and the limit wheels are located at the two ends of the limit frame corresponding to the counterweight block. The counterweight block is made of metal magnetic material, and the limit frame is provided with a first limit magnet and a second limit magnet corresponding to the counterweight block. The first limit magnet is located at the bottom of the counterweight block, and the second limit magnet is located on both sides of the first limit magnet and is inclined.

[0016] Beneficial effects of the present invention: The present invention provides a construction pulley for overhead power transmission line engineering, which solves the problem of frequent alternating engagement with the twisting wheels on both sides in the prior art and increases wear through a grounding component and a transmission component, while avoiding the pulling problem that is easy to occur when the weight of the wire is increased. By introducing a counterweight block and a limit assembly, the stability of the conductive wheel during rotation is significantly enhanced, and the shaking problem caused by external environmental interference (such as wind, vibration, etc.) is reduced. This not only improves the overall stability of the construction pulley, but also enhances the safety during the construction process. An air bag and an electrode sheet are arranged on the conductive wheel, and stable current transmission is achieved through components such as conductive electrodes and carbon brushes, ensuring the continuous and stable extraction of current during the construction process, providing a strong guarantee for the erection of power lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of a wire-laying construction pulley for an overhead power transmission line project.

[0018] Figure 2 The present invention is a front view structural schematic diagram of a wire stringing construction pulley for an overhead power transmission line project.

[0019] Figure 3 The present invention is a schematic diagram of the structure of a transmission component of a wire-laying construction pulley for an overhead power transmission line project.

[0020] Figure 4 The present invention is a schematic diagram of the structure of a grounding component of a wire construction pulley for an overhead power transmission line project.

[0021] Figure 5 The present invention is a schematic diagram of the structure of a fixed component of a cable construction pulley for an overhead power transmission line project.

[0022] Figure 6 The present invention is a schematic diagram of the structure of the fixed component part of a wire construction pulley for an overhead power transmission line project.

[0023] Figure 7 The present invention is a schematic diagram of the structure of a limiting component of a pulley for overhead power transmission line engineering line construction.

[0024] Figure 8 The present invention is a schematic diagram of the structure of an adjustment component of a wire construction pulley for an overhead power transmission line project.

[0025] Fig. 9 It is a schematic structural diagram from another angle of a limit assembly of a pulley for overhead power line engineering construction of a power transmission line according to the present invention.

[0026] Fig.10 The invention discloses an exploded structural diagram of a transmission assembly of a cable construction pulley for an overhead power transmission line project.

[0027] Fig.11 It is a schematic diagram of the exploded structure of the second gear set of a wire construction pulley for an overhead power transmission line project of the present invention.

[0028] In the figure: 1, bracket, 11, conductive column, 2, fixing component, 21, fixing seat, 22, clamping sleeve, 23, limit block, 24, pressure strip, 25, support rod, 26, screw, 27, protrusion, 28, limit column, 3, conductive wheel, 31, support plate, 32, airbag, 33, counterweight, 34, connecting block, 4, grounding component, 41, take-up rod, 42, connecting line, 43, support shaft, 44, limit gear, 45, telescopic component, 46, limit component, 461, limit frame, 462, limit wheel, 463, first limit magnet, 464, second limit magnet, 5, transmission component, 51, first gear group, 52, second gear group, 521, first gear, 522, second gear, 6, adjustment component, 61, adjustment rod, 62, adjustment frame, 63, adjustment gear, 64, adjustment rack. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Example 1

[0030] The present invention provides a transmission line overhead transmission line engineering line construction pulley, which comprises a bracket 1, a fixing component 2, and a conductive wheel 3. The conductive wheel 3 is connected to the bracket 1 through a grounding component 4. The fixing component 2 is located on the bracket 1 to fix the bracket 1. The conductive wheels 3 are two located at both ends of the bracket 1, and the conductive wheels 3 are provided with air bags 32, and the air bags 32 are provided with electrode sheets; The fixing assembly 2 includes a fixing seat 21, a clamping sleeve 22, and a pressure strip 24. The fixing seat 21 is a plurality of fixing seats 21 that are linearly distributed on the bracket 1. The clamping sleeve 22 is semi-arc-shaped and symmetrically arranged in the fixing seat 21. The bottom of the clamping sleeve 22 is hinged with the fixing seat 21. A limit block 23 corresponding to the pressure strip 24 is provided on the top of the clamping sleeve 22. The limit block 23 is fixedly connected to the clamping sleeve 22. The outer side of the limit block 23 is a bevel design. The pressure strip 24 is connected to the bracket 1 by a support rod 25. Both ends of the pressure strip 24 pass through the top of the bracket 1 and are slidably connected to the bracket 1 up and down. The bottom of the support rod 25 is a screw rod 26. The screw rod 26 passes through the top of the bracket 1 and is threadedly connected to the bracket 1. The clamping sleeve 22 is provided with circumferentially distributed protrusions 27, and the clamping sleeve 22 is supported by limiting columns 28 on both sides of the fixing seat 21. One end of the limiting column 28 is hinged to the fixing seat 21, and the other end is slidably connected to the outer wall of the clamping sleeve 22. The clamping sleeve 22 is provided with a sliding groove corresponding to the limiting column 28. The grounding assembly 4 is located on both sides of the conductive wheel 3 and connected to the bracket 1. The grounding assembly 4 includes a wire take-up rod 41 and a connecting wire 42. The two ends of the connecting wire 42 are respectively wound on the wire take-up rods 41 on both sides. A conductive column 11 is provided on the bracket 1. The wire on one side of the wire take-up rod 41 is connected to the conductive column 11. A grounding wire is provided on the conductive column 11 for grounding. The grounding component 4 is connected to the conductive wheel 3 by a transmission component 5. The grounding component 4 is provided with a support shaft 43 corresponding to the transmission component 5. The transmission component 5 includes a first gear set 51 and a second gear set 52. The first gear set 51 is located at both ends of the conductive wheel 3. A limit gear 44 is provided on the wire-receiving roller 41, wherein the wire-receiving roller 41 on one side is connected to the first gear set 51 on the corresponding side through the limit gear 44, and the wire-receiving roller 41 on the other side is connected to the first gear set 51 through the second gear set 52. A telescopic component 45 is provided at one end of the support shaft 43 near the wire-receiving roller 41. The support shaft 43 drives the first gear set 51 to move along the direction of the support shaft 43 through the telescopic component 45. The first gear set 51 is a reduction gear set. The second gear set 52 includes a first gear 521 and a second gear 522. The first gear 521 is meshed with the first gear set 51, the first gear 521 is meshed with the inner diameter of the second gear 522, and the outer diameter of the second gear 522 is meshed with the limit gear 44. Corresponding conductive electrodes are provided between the conductive wheel 3 and the wire take-up rollers 41 on both sides, and carbon brushes are provided on the conductive electrodes; A coaxial support plate 31 is disposed inside the conductive wheel 3 , and the support plate 31 drives the first gear set 51 to rotate.

[0031] When in use, the limiting column 28 is pressed downward, and one end of the limiting column 28 slides along the slide groove on the clamping sleeve 22, and the clamping sleeve 22 begins to expand to both sides, clamping the steel strand into the clamping sleeves 22 on both sides, and the limiting column 28 is released. The limiting column 28 begins to squeeze the clamping sleeve 22 inward, and at the same time, the screw rod 26 starts to rotate to drive the pressure strip 24 to move downward through the support rod 25. At the same time, the pressure strip 24 begins to squeeze the limiting blocks 23 on both sides, driving the clamping sleeve 22 to start to shrink inward, clamping the internal steel strand, and the protrusion 27 on the inner side of the clamping sleeve 22 contacts the steel strand to prevent the bracket 1 from sliding on the steel strand; During use, the telescopic component 45 begins to contract, and the first gear set 51 is driven to mesh with the wire-taking roll 41 on the left side through the support shaft 43 on the left side. The conductive electrode on the wire-taking roll 41 contacts one side of the conductive wheel 3 through the carbon brush. After the bracket 1 is fixed, the wire is passed through the conductive wheels 3 at both ends in turn. The wire drives the conductive wheel 3 to rotate during the movement on the conductive wheel 3. At the same time, the wire squeezes the airbag 32 so that the wire maintains close contact with the electrode sheet on the airbag 32, thereby ensuring continuous current extraction. During the rotation, the conductive wheel 3 drives the fixedly connected support plate 31 to rotate synchronously, and the support plate 31 drives the first gear set 51 to rotate. The first gear set 51 is a reduction gear set. The rotation speed of the wire-taking roll 41 on the corresponding side is slowed down by the first gear set 51. During the rotation of the left wire-taking roll 41, the wire wound thereon is The connecting wire 42 is released, and as the wire continues to move, the left wire-taking rod 41 keeps releasing the wire. When the wire-taking rod 41 releases the wire to the preset position, the telescopic assembly 45 on the right support shaft 43 starts to work, and the first gear set 51 starts to disengage from the left wire-taking rod 41 and mesh with the right wire-taking rod 41 through the second gear set 52. The reverse is achieved under the action of the second gear set 52. During the rotation of the conductive wheel 3, the right wire-taking rod 41 starts to wind and tighten the connecting wire 42, and the above action is repeated after it is wound to the specified position, driving the conductive wheel 3 to start moving to the left and meshing with the left wire-taking rod 41. During the meshing process of the conductive wheel 3 with the wire-taking rod 41, the current is sequentially drawn out to the conductive column 11 through the electrode sheet, the conductive wheel 3, the conductive electrode, and the connecting wire 42, and then transmitted to the ground through the grounding wire.

[0032] Compared with the prior art, a stable and adjustable fixing system is formed by the fixing seat 21, the clamping sleeve 22, the pressure strip 24, and the protrusion 27, which realizes the firm clamping of the steel strand and effectively prevents the bracket 1 from sliding on the steel strand. The airbag 32 and the electrode sheet arranged on the conductive wheel 3 together constitute the key components for current extraction. When the wire moves on the conductive wheel 3, the airbag 32 is squeezed, so that the wire maintains close contact with the electrode sheet, thereby ensuring continuous current extraction. The conductive electrode and the carbon brush further enhance the current transmission performance between the conductive wheel 3 and the wire-taking rod 41, ensuring stable current transmission. The first gear set 51, as a reduction gear set, not only slows down the rotation speed of the wire-taking rod 41, but also realizes a stable connection between the conductive wheel 3 and the wire-taking rod 41 through precise gear transmission. The second gear set 52 realizes the conversion of the transmission direction, that is, when the rotation direction of the wire-taking rod 41 needs to be changed, the second gear set 52 can automatically adjust the transmission path to realize the reverse function. The conductive wheel 3, the fixed component 2, the transmission component 5 and the grounding component 4 are organically combined to form an efficient, stable and intelligent overhead power transmission line engineering line construction pulley. Example 2

[0033] In the above embodiment, the transmission assembly 5 is driven to rotate by the support plate 31, but the conductive wheel 3 is affected by the weight of the wire during rotation, especially when the wire moves to the middle position, the weight increases, and the conductive wheel 3 is prone to get stuck. Therefore, the embodiment of the present application optimizes the transmission assembly 5 to a certain extent based on the above embodiment.

[0034] In this example, the first gear set 51 is connected to the support plate 31 by an adjustment component 6, which includes an adjustment rod 61, an adjustment frame 62, an adjustment gear 63, and an adjustment rack 64. The two ends of the adjustment rod 61 are fixedly connected to the first gear set 51 and the adjustment frame 62 respectively, the adjustment gear 63 is meshed with the adjustment rack 64, the adjustment rack 64 is fixedly connected to the support plate 31, and the adjustment rack 64 passes through the upper and lower ends of the adjustment frame 62 and is slidably connected to the adjustment frame 62 and keeps level with the frame surface of the adjustment frame 62.

[0035] During use, when the weight of the wire increases when it moves to the middle position, resulting in insufficient support or excessive tension, the motor drives the adjusting gear 63 to rotate, and the adjusting gear 63 engages with the adjusting rack 64 to drive the adjusting rack 64 to slide up and down along the adjusting frame 62. The movement of the adjusting rack 64 drives the change of the rotation center of the support plate 31, thereby adjusting the rotation center of the conductive wheel 3, allowing the wire to pass smoothly between the two rollers, avoiding the problem of wire entanglement, reducing jumps and deviations, thereby reducing the risk of wear and damage, and extending the service life of the wire.

[0036] Compared with the prior art, by introducing the adjustment component 6, the rotation center of the conductive wheel 3 can be adjusted according to the actual situation, so that the contact between the conductive wheel 3 and the wire is softer and more stable. By adjusting the rotation state of the conductive wheel 3 in real time, the jumping and offset caused by the change of the wire weight is reduced. When the wire moves to the middle position and the weight increases, the adjustment gear 63 rotates under the drive of the motor and meshes with the adjustment rack 64, driving the adjustment rack 64 to slide up and down along the adjustment frame 62, that is, the rotation center of the conductive wheel 3 is changed, so that the conductive wheel 3 can better adapt to the change of the wire weight, avoiding the jamming phenomenon caused by excessive weight. When facing complex terrain or changes in wire weight, it can make adjustments quickly to maintain stable current extraction and pulley movement, thereby improving the stability and reliability of the pulley. Example 3

[0037] In the above embodiment, the center of the conductive wheel 3 is adjusted by the adjustment component 6. However, the roller is easily shaken when the wire drives the roller to rotate through the roller and the roller is in the process of self-adjusting the center of the roller, especially when there is wind, vibration or other interference factors in the external environment. Therefore, the embodiment of the present application optimizes the conductive wheel 3 to a certain extent based on the above embodiment.

[0038] In this embodiment, a counterweight block 33 is provided on the conductive wheel 3. A plurality of counterweight blocks 33 are evenly distributed on the outer walls on both sides of the conductive wheel 3. Connecting blocks 34 corresponding to the counterweight blocks 33 are provided on the outer walls on both sides of the conductive wheel 3. The counterweight blocks 33 and the connecting blocks 34 are connected by a connecting rod. The top of the connecting rod is rotatably connected to the connecting block 34, and the bottom is fixedly connected to the counterweight block 33. The connecting rod is in a vertical downward state.

[0039] During use, the counterweight 33 remains vertically downward due to its own gravity, and at the same time, the conductive wheel 3 is pulled by the connecting rod and the connecting block 34 to ensure the stability of both sides of the conductive wheel 3. The rotational connection between the top of the connecting rod and the connecting block 34 can ensure that the counterweight 33 can still remain vertically downward under the influence of gravity during the rotation of the conductive wheel 3.

[0040] Compared with the prior art, the counterweight 33 is affected by its own gravity and always maintains a vertical downward state, which not only increases the overall stability of the conductive wheel 3, but also effectively pulls the conductive wheel 3 through the connecting rod and the connecting block 34, further ensuring the stability of the conductive wheel 3 during rotation. A rotating connection is adopted between the top of the connecting rod and the connecting block 34. When the conductive wheel 3 rotates, the counterweight 33 will not generate additional centrifugal force due to the rotation, but always maintains a vertical downward state under the influence of gravity. Even when there are interference factors such as wind and vibration in the external environment, due to the gravity of the counterweight 33, the conductive wheel 3 can maintain a relatively stable state, reduce shaking, and improve the conductive effect. Example 4

[0041] In the above embodiment, the conductive wheel 3 is counterweighted by the counterweight block 33 to ensure the stability of the conductive wheel 3 during rotation. However, when the weight of the wire is too heavy or the external influence is too large, simply relying on the counterweight block 33 cannot effectively ensure the stability of the conductive wheel 3. Therefore, the embodiment of the present application optimizes the grounding component 4 to a certain extent based on the above embodiment.

[0042] In this example, a limit assembly 46 is provided at the bottom of the grounding assembly 4, and the limit assembly 46 includes a limit frame 461 and a limit wheel 462. The two ends of the limit frame 461 are respectively connected to the support shafts 43 on both sides, and the limit wheels 462 are located at the two ends of the limit frame 461 and correspond to the counterweight block 33. The counterweight block 33 is made of metal magnetic material. The limit frame 461 is provided with a first limit magnet 463 and a second limit magnet 464 corresponding to the counterweight block 33. The first limit magnet 463 is located at the bottom of the counterweight block 33, and the second limit magnet 464 is located on both sides of the first limit magnet 463 and is inclined at 15° to 30°.

[0043] During use, the first limiting magnet 463 adsorbs the counterweight 33 and limits the counterweight 33. When the conductive wheel 3 shakes, the first limiting magnet 463 ensures that the counterweight 33 can fit tightly to the bottom, thereby reducing the vertical shaking of the conductive wheel 3. The second limiting magnets 464 on both sides form a certain angle with the bottom of the counterweight 33, providing additional lateral stabilizing force when the conductive wheel 3 shakes, which helps to suppress the horizontal shaking of the conductive wheel 3, making the conductive wheel 3 more stable. The inclined setting of the 6 limiting components 46 avoids the problem of uneven adsorption or excessive repulsion caused by excessive concentration of magnetic force.

[0044] Compared with the prior art, an additional stable support system is provided for the conductive wheel 3 through the limiting assembly 46, which not only enhances the stability of the conductive wheel 3 when dealing with heavy loads or external interference, but also realizes more precise control through the specific limiting structure. The counterweight block 33 is made of metal magnetic material, so that the counterweight block 33 not only has a counterweight function, but also can produce effective magnetic interaction with the magnet. The inclined setting of the second limiting magnet 464 helps to suppress shaking, so that the conductive wheel 3 maintains a more stable state, and also avoids the problem of uneven adsorption caused by excessive concentration of magnetic force or movement obstruction caused by excessive repulsion.

[0045] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A transmission line overhead transmission line engineering cable construction pulley, comprising a bracket (1), a fixing component (2), and a conductive wheel (3), wherein the conductive wheel (3) is connected to the bracket (1) via a grounding component (4), and the fixing component (2) is located on the bracket (1) to fix the bracket (1), characterized in that: The conductive wheel (3) is located at both ends of the bracket (1), an air bag (32) is provided on the conductive wheel (3), and an electrode sheet is provided on the air bag (32); The grounding assembly (4) is located on both sides of the conductive wheel (3) and is connected to the bracket (1). The grounding assembly (4) comprises a wire take-up rod (41) and a connecting wire (42). The connecting wire (42) is respectively connected to the wire take-up rods (41) at both ends. A conductive column (11) is provided on the bracket (1), wherein the wire take-up rod (41) at one end is connected to the conductive column (11), and a grounding wire is provided on the conductive column (11); The grounding assembly (4) and the conductive wheel (3) are connected via a transmission assembly (5), wherein the transmission assembly (5) comprises a first gear set (51) and a second gear set (52), wherein the first gear set (51) is located at both ends of the conductive wheel (3), and the wire take-up rollers (41) at both ends are provided with limit gears (44), wherein the wire take-up roller (41) at one end is meshed with the first gear set (51) at the corresponding end via the limit gear (44), and the wire take-up roller (41) at the other end is meshed with the first gear set (51) via the second gear set (52).

2. A transmission line overhead power line engineering cable construction pulley according to claim 1, characterized in that: The two ends of the connecting line (42) are respectively wound around the wire take-up rollers (41) at both sides, and the first gear set (51) is a reduction gear set.

3. A transmission line overhead power line engineering cable construction pulley according to claim 1, characterized in that: The second gear set (52) comprises a first gear (521) and a second gear (522); the first gear (521) meshes with the first gear set (51); the first gear (521) meshes with the inner diameter of the second gear (522); and the outer diameter of the second gear (522) meshes with the limit gear (44).

4. A transmission line overhead power line engineering cable construction pulley according to claim 1, characterized in that: The grounding assembly (4) is provided with a support shaft (43) corresponding to the transmission assembly (5); an end of the support shaft (43) close to the wire take-up roller (41) is provided with a telescopic assembly (45); the support shaft (43) drives the first gear set (51) to move along the direction of the support shaft (43) through the telescopic assembly (45).

5. A transmission line overhead power line engineering cable construction pulley according to claim 1, characterized in that: Corresponding conductive electrodes are provided between the conductive wheel (3) and the wire take-up rollers (41) on both sides, and carbon brushes are provided on the conductive electrodes.

6. A transmission line overhead power line engineering cable construction pulley according to claim 4, characterized in that: A coaxial support plate (31) is provided inside the conductive wheel (3), and the support plate (31) drives the first gear set (51) to rotate with the support shaft (43) as the center.

7. A transmission line overhead power line engineering cable construction pulley according to claim 6, characterized in that: The first gear group (51) and the support plate (31) are connected via an adjustment assembly (6), the adjustment assembly (6) comprising an adjustment rod (61), an adjustment frame (62), an adjustment gear (63), and an adjustment rack (64); two ends of the adjustment rod (61) are respectively fixedly connected to the first gear group (51) and the adjustment frame (62); the adjustment gear (63) is meshed with the adjustment rack (64); the adjustment rack (64) is fixedly connected to the support plate (31); the adjustment rack (64) passes through the upper and lower ends of the adjustment frame (62), is slidably connected to the adjustment frame (62), and is kept horizontal with the frame surface of the adjustment frame (62).

8. The overhead power transmission line engineering cable construction pulley according to claim 4, characterized in that: The conductive wheel (3) is provided with a counterweight block (33), the counterweight blocks (33) are located on the conductive wheel (3) and are distributed in a circumferential manner, the conductive wheel (3) is provided with a connecting block (34) corresponding to the counterweight block (33), and the counterweight block (33) and the connecting block (34) are connected via a connecting rod.

9. A transmission line overhead power line engineering cable construction pulley according to claim 8, characterized in that: The top of the connecting rod is rotatably connected to the connecting block (34), and the bottom is fixedly connected to the counterweight block (33), and the connecting rod is in a vertical downward state.

10. A transmission line overhead power line engineering cable construction pulley according to claim 8, characterized in that: A limiting assembly (46) is provided at the bottom of the grounding assembly (4), and the limiting assembly (46) comprises a limiting frame (461) and a limiting wheel (462). Two ends of the limiting frame (461) are respectively connected to the supporting shafts (43) at two sides. The limiting wheels (462) are located at two ends of the limiting frame (461) and correspond to the counterweight block (33). The counterweight block (33) is made of a metal magnetic material. A first limiting magnet (463) and a second limiting magnet (464) corresponding to the counterweight block (33) are provided in the limiting frame (461). The first limiting magnet (463) is located at the bottom of the counterweight block (33), and the second limiting magnet (464) is located at both sides of the first limiting magnet (463) and is arranged obliquely.

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