Contact line compensation device

Abstract

This application relates to the field of overhead contact line accessories technology, and provides an overhead contact line compensation device. The device includes: a pulley block equipped with a compensation rope, one end of which extends outward from the pulley block to form a connecting section for connecting a weight; two clamping plates symmetrically installed on both sides of the pulley block along its axial direction; two positioning parts correspondingly installed on opposite sides of the two clamping plates; each positioning part includes a base, an abutment block, and two elastic members. The base is fixedly connected to the clamping plates, and the middle part of the abutment block is rotatably connected to the base, with a receiving groove formed on the side of the abutment block facing away from the base; the two elastic members are disposed on both sides of the rotatable connection point between the abutment block and the base along the vertical direction, with one end of each elastic member connected to the abutment block and the other end connected to the base or clamping plate; the two abutment blocks are arranged opposite each other so that the two receiving grooves together form a buffer channel, and the connecting section passes through the buffer channel. The elastic members drive the abutment blocks to reset, consuming the energy of the weight or pulley block's swing.

Description

Technical Field

[0001] This application relates to the field of overhead contact line accessories technology, and in particular to an overhead contact line compensation device. Background Technology

[0002] As a dedicated power transmission line erected above electrified railway lines to provide traction power to electric locomotives, the catenary and contact wire (collectively referred to as the overhead contact wire) of the overhead contact system experience length changes during operation due to factors such as ambient temperature variations, wind loads, and the dynamic effects of the locomotive's pantograph, which in turn cause tension fluctuations. To ensure continuous and stable current collection quality and mechanical safety, tension compensation devices need to be installed at the ends of the overhead contact wires to maintain constant tension.

[0003] The compensation devices commonly used in existing technologies mainly consist of pulley blocks, compensating ropes, and weights. The pulley blocks are fixed to the contact wire support posts and connected to the wire terminal via connectors. The compensating rope is wound around the pulley grooves of the pulley blocks, with one end connected to the wire terminal connector and the other end suspending the weight. The weight of the weight is transmitted to the wire via the compensating rope and pulley blocks, keeping it constantly taut.

[0004] However, external stimuli such as drastic temperature changes, strong winds, and vibrations from high-speed electric locomotives can easily cause the weight or pulley system to sway. When the weight or pulley system sways, the compensating rope will rub against the sidewalls of the pulley grooves, causing uneven wear. Once swaying occurs, the weight or pulley system often takes a long time to return to a stationary state on its own. The continuous uneven wear and the slow attenuation of the swaying work together to significantly shorten the service life of key components such as the compensating rope and pulley system, and also affect the reliability of the entire compensation device. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a catenary compensation device.

[0006] This application provides a contact wire compensation device, comprising:

[0007] A pulley block equipped with a compensating rope, one end of which extends outward from the pulley block to form a connecting section, the connecting section being used to connect a weight;

[0008] Two clamping plates are symmetrically installed on both sides of the pulley block along the axial direction of the pulley block;

[0009] Two positioning parts are installed on opposite sides of the two clamping plates;

[0010] The positioning part includes a base, an abutment block, and two elastic members. The base is fixedly connected to the clamping plate, and the middle part of the abutment block is rotatably connected to the base. A receiving groove extending vertically is formed on the side of the abutment block facing away from the base. The two elastic members are disposed on both sides of the rotatable connection point between the abutment block and the base along the vertical direction. One end of each elastic member is connected to the abutment block, and the other end is connected to the base or the clamping plate.

[0011] The two abutting blocks are arranged opposite each other so that the two receiving slots together form a buffer channel, and the connecting section passes through the buffer channel.

[0012] Optionally, the abutment block has an arc-shaped surface on the side facing away from the base, the arc-shaped surface protruding in the direction away from the abutment block, and the arc-shaped surface recessed towards the base to form the receiving groove.

[0013] Optionally, the two abutment blocks are axially spaced apart in the pulley assembly.

[0014] Optionally, the clamping plate includes a first plate segment and a second plate segment. The top end of the first plate segment is fixedly connected to the pulley assembly, and the second plate segment is connected to the bottom end of the first plate segment. The second plate segment extends in a horizontal direction, and the positioning part is installed on the second plate segment.

[0015] Optionally, the rotatable connection point between the abutment block and the base is equidistant from the two elastic elements in the vertical direction.

[0016] Optionally, a support rod is connected between the two clamping plates.

[0017] Optionally, the abutment block forms a mounting plane on one side facing the base, and the elastic element is connected to the mounting plane.

[0018] Optionally, the pulley block includes a main fixed pulley, a secondary fixed pulley, a movable pulley, a fixed plate, and a mounting plate;

[0019] Both the main fixed pulley and the secondary fixed pulley are mounted on the fixed plate, and the movable pulley is mounted on the mounting plate. The main fixed pulley is located on the side of the secondary fixed pulley away from the movable pulley.

[0020] One end of the compensating rope is fixedly connected to the mounting plate, and the other end is arranged sequentially around the secondary fixed pulley, the movable pulley and the main fixed pulley, and falls vertically from the main fixed pulley to form the connecting section;

[0021] The two clamps are connected to the fixing plate.

[0022] Optionally, the fixing plate is arranged around the main fixed pulley and the secondary fixed pulley;

[0023] The fixed plate has a first connection position and a second connection position. The first connection position is located at the end of the fixed plate away from the movable pulley, and the second connection position is located at the axis of the fixed plate corresponding to the main fixed pulley or the secondary fixed pulley.

[0024] The two clamps are installed on the first connection position or the second connection position.

[0025] The technical solution provided in this application has the following advantages compared with the prior art:

[0026] The overhead contact line compensation device provided in this application has two clamps installed on the pulley block, and a positioning part is fixedly installed on each clamp. The connecting section of the compensating rope hangs naturally, passing through a buffer channel formed by two receiving grooves. The weight is connected to the bottom end of the connecting section. When the weight swings, the two abutment blocks limit the swing amplitude of the connecting section, preventing uneven wear between the compensating rope and the pulley groove. Furthermore, the horizontal swing of the connecting section causes the abutment blocks to rotate relative to the base, resulting in a shift in the abutment blocks from their initial position. The two elastic elements on the abutment blocks deform and drive the abutment blocks to reset, allowing the elastic force provided by the elastic elements to dissipate the energy of the weight's swing. When the pulley system swings, the two clamping plates swing together with the pulley system. The abutment blocks abut against the connecting section, causing the connecting section to swing horizontally with the pulley system, reducing the distance the compensating rope moves relative to the pulley groove and preventing uneven wear between the compensating rope and the pulley groove. Additionally, when the two abutment blocks abut against the connecting section, the abutment blocks rotate relative to the clamping plates, deviating from their initial position. The two elastic elements on the abutment blocks deform and drive the abutment blocks to reset, with the elastic force provided by the elastic elements dissipating the energy of the pulley system's swing. Through the cooperation of the pulley block, clamping plate, and positioning part, the two positioning parts limit the distance the compensating rope moves relative to the groove of the pulley block. The elastic element drives the abutment block to reset, so as to consume the energy when the weight or pulley block swings, so that the swing of the weight or pulley block can be quickly smoothed. This significantly reduces the abnormal friction between the compensating rope and the groove of the pulley block, extends the service life of the contact wire compensation device, and improves the reliability of the contact wire compensation device during use. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overhead contact line compensation device described in the embodiments of this application;

[0030] Figure 2 This is a front view of the overhead contact line compensation device described in the embodiments of this application;

[0031] Figure 3 This is a side view of the overhead contact line compensation device described in the embodiments of this application;

[0032] Figure 4 for Figure 3 A partial schematic diagram;

[0033] Figure 5 This is a schematic diagram of the positioning part described in an embodiment of this application.

[0034] Among them, 1. Pulley block; 11. Compensating rope; 111. Connecting section; 12. Main fixed pulley; 13. Secondary fixed pulley; 14. Movable pulley; 15. Fixed plate; 16. Mounting plate; 2. Clamping plate; 21. First plate segment; 22. Second plate segment; 3. Positioning part; 31. Base; 32. Abutting block; 321. Receiving groove; 322. Arc-shaped surface; 33. Elastic element. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0037] Reference Figures 1 to 5As shown, this application embodiment provides a contact wire compensation device, including: a pulley block 1, equipped with a compensation rope 11, one end of the compensation rope 11 extending outward from the pulley block 1 to form a connecting section 111, the connecting section 111 being used to connect a weight; two clamping plates 2, symmetrically installed on both sides of the pulley block 1 along the axial direction of the pulley block 1; two positioning parts 3, correspondingly installed on opposite sides of the two clamping plates 2; the positioning part 3 includes a base 31, an abutment block 32, and two elastic members 33, the base 31 being fixedly connected to the clamping plates 2. The middle part of the abutment block 32 is rotatably connected to the base 31. A receiving groove 321 extending vertically is formed on the side of the abutment block 32 facing away from the base 31. Two elastic members 33 are disposed on both sides of the rotatable connection point between the abutment block 32 and the base 31 along the vertical direction. One end of each elastic member 33 is connected to the abutment block 32, and the other end is connected to the base 31 or the clamping plate 2. The two abutment blocks 32 are arranged opposite to each other so that the two receiving grooves 321 together form a buffer channel. The connecting section 111 passes through the buffer channel.

[0038] Specifically, the pulley block 1 may include multiple pulleys, with at least some pulleys separated from the others, allowing the pulleys of the two parts of the pulley block 1 to approach and move away from each other. Each pulley has a groove on its outer circumference. The compensating rope 11 is wound around the multiple pulleys, embedding itself in the groove of each pulley to ensure that the compensating rope 11 remains connected to the pulley. One end of the compensating rope 11 extends to the outside of the pulley block 1 to form a connecting section 111. The connecting section 111 hangs down naturally and connects to the weight. The two ends of the pulley block 1 are respectively connected to the support post and the wire of the contact network. The weight of the weight tightens the compensating rope 11, causing the two parts of the pulleys to approach each other, so that the pulley block 1 can provide a constant tension force to the wire, ensuring that the wire is in a taut state.

[0039] The two clamping plates 2 are made of sturdy metal plates, such as steel plates, by stamping or cutting. They are roughly flat in shape and have a certain thickness and strength. The two clamping plates 2 are symmetrically installed and fixed on both sides of the pulley block 1 structure along the axial direction. The two clamping plates 2 are spaced apart, so that the space between the two clamping plates 2 serves as the installation space, and the two positioning parts 3 are set within the installation space.

[0040] The inner side of the two clamping plates 2 facing each other is the inner side of the clamping plate 2. The positioning part 3 is installed on the inner side of the clamping plate 2, and the two positioning parts 3 are arranged opposite each other in the axial direction of the pulley block 1. The base 31 can be a metal base plate, which is firmly fixed to the corresponding clamping plate 2 by welding, bolting or other methods. The base 31 provides a stable support platform for the entire positioning part 3.

[0041] The abutment block 32 can be made of metal or plastic. A rotating connection point is located at the center of the vertical direction of the abutment block 32, and the base 31 is rotatably connected to this connection point. Alternatively, the base 31 can have a vertical plate, and the rotating connection point of the base 31 can have a rotating hole. The axis of the rotating hole is horizontal and parallel to the base 31, and the vertical plate and the rotating hole are rotatably connected by a pin. Alternatively, the base 31 and the rotating connection point of the abutment block 32 can be rotatably connected by a hinge.

[0042] The abutment block 32 can swing relative to the base 31 within a certain angle range around the rotating connection point. On the side of the abutment block 32 facing away from the base 31, that is, the side facing the center line of the pulley block, a receiving groove 321 extending in the vertical direction is machined or formed. The abutment block 32 can be a rectangular block, or it can be a semi-circular block, with the arc surfaces of the two semi-circular blocks facing each other.

[0043] The cross-sectional shape of the receiving groove 321 can be V-shaped, U-shaped, or arc-shaped, with its width slightly larger than the diameter of the compensating rope 11 and its depth sufficient to accommodate part of the rope. The two abutting blocks 32 can be positioned so that the two receiving grooves 321 together form a buffer channel; alternatively, the two abutting blocks 32 can be spaced apart, with the space between the two receiving grooves 321 forming a buffer channel.

[0044] The two elastic elements 33 can be selected as springs or elastic rubber blocks. Each elastic element 33 has its two ends connected to the abutment block 32 and the base 31, respectively. The two elastic elements 33 are arranged on both sides of the vertical connection point between the abutment block 32 and the base 31, i.e., the two elastic elements 33 are located above and below the vertical connection point. The elastic elements 33 can be connected between the abutment block 32 and the base 31; alternatively, the base 31 can be a plate, with the two ends of the abutment block 32 extending beyond the edge of the base 31 in the vertical direction, and the elastic elements 33 connected between the abutment block 32 and the base 31.

[0045] When the connecting section 111 of the compensating rope 11 is in a vertical static state, i.e., when the weight is not swinging, the connecting section 111 is located at the center of the buffer channel. At this time, the two abutment blocks 32 are in their initial positions, and the connecting section 111 is in slight contact with the inner wall of the receiving groove 321 or is not under pressure. When the weight swings, the weight pulls the connecting section 111 to shift horizontally. When the connecting section 111 shifts to one side horizontally, it pushes the abutment block 32 to rotate relative to the base 31. When the abutment block 32 rotates relative to the base 31, one end of the abutment block 32 in the vertical direction approaches the base 31 to compress the elastic element 33, and the other end moves away from the base 31 to stretch the elastic element 33. The elastic force of the two elastic elements 33 drives the abutment block 32 back to its initial position.

[0046] When the connecting segment 111 swings, the compressed elastic element 33 stores energy. When the instantaneous external force causing the displacement weakens or disappears, the elastic element 33 releases the stored elastic potential energy, pushing the abutment block 32 to rotate in the opposite direction, helping the abutment block 32 and the connecting segment 111 to return to a position close to the center. During the swinging and resetting process, the connecting segment 111 is always within the receiving groove 321 of the two abutment blocks 32. The two abutment blocks 32 rotate with the swinging of the connecting segment 111, and the two elastic elements 33 corresponding to the abutment blocks 32 drive the abutment blocks 32 to return to their initial positions, so that the abutment blocks 32 consume the kinetic energy of the swinging of the connecting segment 111, reduce the swinging time of the connecting segment 111, and make the swinging of the connecting segment 111 return to its initial position quickly.

[0047] When the pulley block 1 is vibrated and swings, the weight is not easy to swing due to the hanging setting. At this time, the position of the compensating rope 11 is relatively stable. The swing of the pulley block 1 will cause the compensating rope 11 to move in the groove. When the swing amplitude of the pulley block 11 is large, the compensating rope 11 is prone to uneven wear in the groove. When the pulley block 11 swings, the connecting section 111 is in a relatively fixed position. The two clamping plates 2 swing together with the pulley block 11, causing the two abutting blocks 23 to drive the connecting section 111 to move together. This allows the compensating rope 11 to swing together with the pulley block 1, reducing the moving distance of the compensating rope 11 relative to the pulley block 1 and preventing uneven wear between the compensating rope 11 and the groove of the pulley block 1. Furthermore, when the two abutting blocks 22 drive the connecting section 111 to swing, the two elastic elements 33 on each abutting block 23 also apply an elastic force to the clamping plate 2. This elastic force is opposite to the direction of the clamping plate 2 swinging with the pulley block 11, causing the elastic force to consume the energy of the pulley block 1 swinging and quickly smoothing out the swing of the pulley block 1 relative to the compensating rope 11.

[0048] In specific use, the contact wire compensation device provided in this application embodiment connects one end of the pulley block 1 to the support column and the other end to the wire. The connecting section 111 passes through the buffer channel between the two abutment blocks 32, and the weight is connected to the bottom of the connecting section 111. The weight pulls the compensation rope 11, which causes the pulley block 1 to apply a constant force to the wire, keeping the wire taut. When the weight swings and causes the connecting section 111 to swing, the two abutment blocks 32 rotate relative to the base 31 with the connecting section 111. The two elastic elements 33 on the abutment blocks 32 can drive the abutment blocks 32 to return to their initial positions. The elastic elements 33 consume the kinetic energy of the swing of the connecting section 111, reduce the swing amplitude of the connecting section 111, and reduce the swing time of the connecting section 111, so that the connecting section 111 quickly returns to a stationary state.

[0049] The contact wire compensation device provided in this application embodiment has two clamping plates 2 installed on the pulley block 1, and a positioning part 3 is fixedly installed on each clamping plate 2. The connecting section 111 of the compensation rope 11 hangs down naturally and passes through the buffer channel formed by the two receiving grooves 321. The weight is connected to the bottom end of the connecting section 111. When the weight swings, the two abutting blocks 32 limit the swing amplitude of the connecting section 111, so as to avoid the compensation rope 11 from being worn unevenly with the groove of the pulley block 1. In addition, the horizontal swing of the connecting section 111 drives the abutting block 32 to rotate relative to the base 31. The abutting block 32 is offset from its initial position. The two elastic elements 33 on the abutting block 32 deform and drive the abutting block 32 to reset, so that the elastic force provided by the elastic elements 33 consumes the energy of the weight swing. When the pulley block 11 swings, the two clamping plates 2 swing together with the pulley block 1. The abutting block 32 abuts against the connecting section 111, causing the connecting section 111 to swing together with the pulley block 1 in the horizontal direction. This reduces the distance that the compensating rope 11 moves relative to the groove of the pulley block 1, and avoids uneven wear between the compensating rope 11 and the groove of the pulley block 1. When the two abutting blocks 32 abut against the connecting section 111, the abutting blocks 32 rotate relative to the clamping plates 2 and deviate from their initial positions. The two elastic elements 33 on the abutting blocks 32 deform and drive the abutting blocks 32 to reset. The elastic force provided by the elastic elements 33 consumes the energy of the pulley block 1 swinging. Through the cooperation of pulley block 1, clamping plate 2 and positioning part 3, the two positioning parts 3 limit the distance that the compensating rope 11 moves relative to the groove of pulley block 1. The elastic element 33 drives the abutment block 32 to reset, so as to consume the energy when the weight or pulley block 11 swings, so that the swing of the weight or pulley block 11 can be quickly smoothed, which significantly reduces the abnormal friction between the compensating rope 11 and the groove of pulley block 1, extends the service life of the contact network compensation device, and improves the reliability of the contact network compensation device during use.

[0050] Reference Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the side of the abutment block 32 facing away from the base 31 forms an arcuate surface 322, which protrudes in the direction away from the abutment block 32 and is recessed toward the base 31 to form a receiving groove 321.

[0051] With this design, even if the compensating rope 11 deviates significantly, its side first contacts the gentle area of ​​the curved surface 322, rather than the steep edge of the receiving groove 321. This gradual contact method reduces local contact stress, making the rotation of the abutment block 32 smoother, the impact on the elastic element 33 smaller, and the linkage process gentler. The curved surface 322 avoids stress concentration, and when the two abutment blocks 32 rotate simultaneously, the two curved surfaces 322 can avoid each other, reducing the possibility of damage to the abutment blocks 32 due to long-term collision.

[0052] Specifically, the abutment block 32 can be a semi-circular block structure, with the arc-shaped surface 322 protruding in the direction away from the abutment block 32, that is, the side facing the connecting segment 111 is an outwardly convex arc surface. Simultaneously, in the central region of this protruding arc-shaped surface 322, there is a recess facing the base 31, thus forming a receiving groove 321. The receiving groove 321 extends vertically along the arc-shaped surface, and can optionally extend to both ends of the arc-shaped surface in the vertical direction, ensuring that the connecting segment 111 remains within the receiving groove 321 when the abutment block 32 rotates relative to the base 31.

[0053] Reference Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the two abutment blocks 32 are axially spaced apart in the pulley block 1.

[0054] With this arrangement, the two abutting blocks 32 are spaced apart to prevent them from rubbing against each other when they rotate at the same time; and the space between the two abutting blocks 32 allows for tolerances during manufacturing, preventing them from interfering with each other due to manufacturing errors.

[0055] Specifically, the two abutting blocks 32 can be spaced with a set distance, such as a spacing of 2mm or 3mm.

[0056] Reference Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the clamping plate 2 includes a first plate segment 21 and a second plate segment 22. The top end of the first plate segment 21 is fixedly connected to the pulley block 1, and the second plate segment 22 is connected to the bottom end of the first plate segment 21. The second plate segment 22 extends in a horizontal direction, and the positioning part 3 is installed on the second plate segment 22.

[0057] With this configuration, the first plate segment 21 brings the second plate segment 22 closer to the weight, and the horizontally positioned second plate segment 22 ensures that the receiving groove 321 is vertically positioned.

[0058] Specifically, the first plate segment 21 is typically a vertical or near-vertical plate structure. Its top end is fixedly connected to the fixed part of the pulley block 1 by welding, bolting, or integral casting. The second plate segment 22 is connected to the bottom end of the first plate segment 21. The second plate segment 22 extends horizontally, and the two second plate segments 22 are parallel to each other and spaced apart. Two positioning parts 3 are disposed in the space between the two second plate segments 22. The first plate segment 21 and the second plate segment 22 can be connected to each other by welding, or they can be an integral structure.

[0059] The second plate segment 22 provides a stable, horizontal working platform for the positioning part 3. This ensures that the base 31 can be installed horizontally, allows the buffer channel to be set in the vertical direction, and ensures that the connecting section 111 will not push the abutment block 32 to rotate when it hangs down naturally.

[0060] Reference Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the rotatable connection point between the abutment block 32 and the base 31 is equidistant from the two elastic members 33 in the vertical direction.

[0061] With this configuration, the two elastic elements 33 provide symmetrical and linear restoring torques, making the buffering action smoother and more controllable, and ensuring that the abutment block 32 has consistent buffering performance when subjected to offset in different directions.

[0062] Specifically, the distances between the rotational connection point of the abutment block 32 and the base 31 and the connection points of the two elastic elements 33, i.e., the fixed points of the elastic elements on the abutment block 32, are equal. That is, the two elastic elements 33 are symmetrically arranged on the abutment block 32 with respect to the rotational connection point, so that the points where the two elastic elements 33 apply elastic force to the abutment block 32 are symmetrical.

[0063] When the abutment block 32 is in the initial position, the elastic forces of the two elastic elements 33 are usually set to be equal. The lever arms of the two elastic elements 33 are equal to those of the rotational connection point, and the torques they generate on the rotational connection point are equal in magnitude and opposite in direction, thus canceling each other out and stabilizing the abutment block 32 in the initial position.

[0064] When the abutment block 32 rotates around the rotation point by an angle, one elastic element 33 is compressed, increasing its resistance to rotation; the other elastic element 33 is stretched, also increasing its resistance to rotation. The lever arms of the two elastic elements 33 are equal, and the change in their resultant torque is more linearly related to the rotation angle θ. That is, the magnitude of the restoring torque exerted by the abutment block 32 on the offset of the connecting segment 111 is proportional to the offset angle, causing the two abutment blocks 32 to dampen the swing of the connecting segment 111 and helping the abutment block 32 to more accurately and quickly return to its initial position after the offset force disappears.

[0065] In some embodiments, a support rod is connected between the two clamping plates 2.

[0066] With this configuration, the support rod forms a truss or frame structure between the two clamping plates 2, which distributes the load on the clamping plates 2 and enhances the ability of the entire clamping plate assembly to resist lateral bending and torsional deformation, preventing the two clamping plates 2 from bending toward each other or toward each other, and ensuring that the two clamping plates 2 remain parallel to each other.

[0067] Specifically, the support rod is set horizontally, and its two ends are connected to two clamping plates 2 respectively; the support rod and clamping plates 2 can be connected to each other by welding, or the support rod and clamping plates 2 can be connected to each other by bolts.

[0068] Reference Figure 4 and Figure 5 As shown, in some embodiments, the abutment block 32 forms a mounting plane on the side facing the base 31, and the elastic member 33 is connected to the mounting plane.

[0069] This configuration provides a flat plane for a reliable and evenly stressed connection at the end of the elastic element 33. When the abutment block 32 rotates, the force applied by the elastic element 33 is perpendicular to the mounting plane.

[0070] Specifically, a mounting plane is machined on the side of the abutment block 32 facing the base 31. The mounting plane is parallel to the rotation axis of the abutment block 32, and the rotational connection point between the abutment block 32 and the base 31 is at the midpoint of the mounting plane in the vertical direction. The end of the elastic element 33 is fixed on the mounting plane. When the abutment block 32 is in the initial position, the mounting plane is parallel to the base 31 or the clamping plate 2, so that the compression of the two elastic elements 33 on the mounting plane is equal.

[0071] Reference Figure 1 and Figure 2 As shown, in some embodiments, the pulley block 1 includes a main fixed pulley 12, a secondary fixed pulley 13, a movable pulley 14, a fixed plate 15, and a mounting plate 16; the main fixed pulley 12 and the secondary fixed pulley 13 are both mounted on the fixed plate 15, the movable pulley 14 is mounted on the mounting plate 16, and the main fixed pulley 12 is located on the side of the secondary fixed pulley 13 away from the movable pulley 14; one end of the compensating rope 11 is fixedly connected to the mounting plate 16, and the other end is arranged sequentially around the secondary fixed pulley 13, the movable pulley 14, and the main fixed pulley 12, and falls vertically from the main fixed pulley 12 to form a connecting section 111; two clamping plates 2 are connected to the fixed plate 15.

[0072] With this configuration, the fixed plate 15 is connected to the cable, the mounting plate 16 is connected to the support column, and the compensating rope 11 is wound around the main fixed pulley 12, the secondary fixed pulley 13, and the movable pulley 14. The weight of the sinker on the connecting section 111 can bring the fixed plate 15 and the mounting plate 16 closer to each other, so that the vertical weight of the sinker can be converted into a tension force on the cable. The clamping plate 2 is installed on the fixed plate 15, so that the two positioning parts 3 are close to the connecting section 111 in the horizontal direction, which makes it convenient for the connecting section 111 to be inserted between the two abutment blocks 32 in a natural hanging state.

[0073] Specifically, the main fixed pulley 12 has its shaft on the fixed plate 15, and the secondary fixed pulley 13 also has its shaft mounted on the fixed plate 15. The movable pulley 14 has its shaft mounted on the mounting plate 16, which is separate from the fixed plate 15, allowing the movable pulley 14 to move relative to the fixed plate 15. The movable pulley 14 amplifies the weight stroke of the weight by moving, thus achieving a compensation function.

[0074] The winding path of the compensating rope 11 is as follows: The initial end is first fixedly connected to the mounting plate 16. Then, the compensating rope 11 sequentially passes over the secondary fixed pulley 13, the movable pulley 14, and then the main fixed pulley 12. Finally, the compensating rope 11 falls vertically from the main fixed pulley 12, forming a connecting section 111 for connecting the weight. Two clamping plates 2 are fixedly connected to the fixing plate 15, positioning the two positioning parts 3 at the connecting section 111.

[0075] Reference Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the fixing plate 15 is arranged around the main fixed pulley 12 and the secondary fixed pulley 13; a first connecting position and a second connecting position are formed on the fixing plate 15, the first connecting position is arranged at the end of the fixing plate 15 away from the movable pulley 14, and the second connecting position is arranged at the axis of the fixing plate 15 corresponding to the main fixed pulley 12 or the secondary fixed pulley 13; two clamping plates 2 are installed on the first connecting position or the second connecting position.

[0076] With this configuration, the clamp 2 can be installed at either the first or second connection position. The installation position of the clamp 2 can be flexibly adjusted according to different contact network structures and layouts, ensuring that the naturally drooping connection section 111 can pass through the buffer channel formed by the two abutment blocks 32. This enhances the adaptability of the contact network compensation device to different application scenarios and design requirements.

[0077] Specifically, the first connection position is located at the end of the fixed plate 15 that is horizontally away from the movable pulley 14; the second connection position is located at the axis of the fixed plate 15 corresponding to the main fixed pulley 12, or at the axis of the fixed plate 15 corresponding to the secondary fixed pulley 13.

[0078] The fixed plate 15 is a frame-shaped plate that surrounds the main fixed pulley 12 and the secondary fixed pulley 13. The two clamping plates 2 are connected to the fixed plate 15 at the first connection position; of course, the two clamping plates 2 can also be selected to be at the second connection position, so that the two clamping plates 2 are located on both sides of the axial direction of the main fixed pulley 12 or the secondary fixed pulley 13.

[0079] In practical use, the contact wire compensation device provided in this application embodiment connects the mounting plate 16 to the support column, the fixing plate 15 to the wire, and the connecting section 111 of the compensation rope 11 hangs down naturally to pass through the buffer channel between the two abutment blocks 32. The weight is connected to the bottom end of the connecting section 111. The weight tightens the compensation rope 11; through the cooperation of the main fixed pulley 12, the secondary fixed pulley 13, and the movable pulley 14, the weight of the weight is converted into a pulling force on the wire, keeping the wire in a taut state.

[0080] When the weight swings and causes the connecting segment 111 to swing, the two abutting blocks 32 rotate with the connecting segment 111 relative to the base 31. The two elastic elements 33 on the abutting block 32 are compressed and extended respectively. The elastic force of the two elastic elements 33 drives the abutting block 32 back to the initial position. The elastic force of the two elastic elements 33 of each abutting block 32 drives the abutting block 32 to reset to the initial position. The elastic elements 33 consume the kinetic energy of the swing of the connecting segment 111, reduce the swing amplitude of the connecting segment 111, and reduce the swing time of the connecting segment 111, so that the connecting segment 111 quickly returns to a stationary state.

[0081] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An overhead line compensation device, characterized in that include: A pulley block (1) is equipped with a compensating rope (11), one end of which extends outward from the pulley block (1) to form a connecting section (111), which is used to connect a weight. Two clamping plates (2) are symmetrically installed on both sides of the pulley group (1) along the axial direction of the pulley group (1); Two positioning parts (3) are installed on opposite sides of the two clamping plates (2); The positioning part (3) includes a base (31), an abutment block (32), and two elastic members (33). The base (31) is fixedly connected to the clamping plate (2). The middle part of the abutment block (32) is rotatably connected to the base (31). A receiving groove (321) extending in the vertical direction is formed on the side of the abutment block (32) facing away from the base (31). The two elastic members (33) are disposed on both sides of the rotatable connection point between the abutment block (32) and the base (31) in the vertical direction. One end of each elastic member (33) is connected to the abutment block (32), and the other end is connected to the base (31) or the clamping plate (2). The two abutting blocks (32) are arranged opposite each other so that the two receiving slots (321) together form a buffer channel, and the connecting section (111) passes through the buffer channel.

2. The overhead line compensation arrangement according to claim 1, characterized in that The abutment block (32) forms an arc-shaped surface (322) on the side facing away from the base (31). The arc-shaped surface (322) protrudes in the direction away from the abutment block (32) and is recessed towards the base (31) to form the receiving groove (321).

3. The overhead line compensation arrangement according to claim 1, characterized in that The two abutment blocks (32) are axially spaced in the pulley assembly (1).

4. The overhead line compensation arrangement according to claim 1, characterized in that The clamp (2) includes a first plate segment (21) and a second plate segment (22). The top end of the first plate segment (21) is fixedly connected to the pulley group (1). The second plate segment (22) is connected to the bottom end of the first plate segment (21). The second plate segment (22) extends in the horizontal direction. The positioning part (3) is installed on the second plate segment (22).

5. The overhead line compensation arrangement according to claim 4, characterized in that The rotational connection point between the abutment block (32) and the base (31) is equidistant from the two elastic elements (33) in the vertical direction.

6. The overhead line compensation arrangement according to claim 1, characterized in that A support rod is connected between the two clamps (2).

7. The overhead line compensation arrangement according to claim 1, characterized in that The abutment block (32) forms a mounting plane on the side facing the base (31), and the elastic element (33) is connected to the mounting plane.

8. The overhead line compensation arrangement according to claim 1, characterized in that The pulley block (1) includes a main fixed pulley (12), a secondary fixed pulley (13), a movable pulley (14), a fixed plate (15), and a mounting plate (16); The main fixed pulley (12) and the secondary fixed pulley (13) are both mounted on the fixed plate (15), and the movable pulley (14) is mounted on the mounting plate (16). The main fixed pulley (12) is located on the side of the secondary fixed pulley (13) away from the movable pulley (14). One end of the compensating rope (11) is fixedly connected to the mounting plate (16), and the other end is arranged around the secondary fixed pulley (13), the movable pulley (14) and the main fixed pulley (12) in sequence, and falls vertically from the main fixed pulley (12) to form the connecting section (111); The two clamps (2) are connected to the fixing plate (15).

9. The overhead line compensation arrangement according to claim 8, characterized in that The fixing plate (15) is arranged around the main fixed pulley (12) and the secondary fixed pulley (13); The fixed plate (15) has a first connection position and a second connection position. The first connection position is located at the end of the fixed plate (15) away from the movable pulley (14), and the second connection position is located at the axis of the fixed plate (15) corresponding to the main fixed pulley (12) or the secondary fixed pulley (13). The two clamps (2) are installed on the first connection position or the second connection position.

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