Compensation tension adjusting device for mobile contact network
By introducing a first winch and tension sensor into the mobile contact network, convenient movement of the contact suspension and automated adjustment of the a and b values are achieved, solving the problems of high movement resistance and cumbersome adjustment of the contact suspension, and improving operational efficiency and convenience.
Patent Information
- Application Number
- CN202520560892.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The existing mobile overhead contact system experiences significant resistance and pressure during the movement of the contact suspension, and the adjustment of the a and b values of the compensation device is cumbersome, time-consuming, and labor-intensive, making it impossible to achieve quick and convenient implementation.
Design a mobile contact network compensation tension adjustment device. The device uses a first winch to drive a mobile support plate and a weight block to move synchronously. Combined with a tension sensor and a second winch, the tension of the compensation device is automatically adjusted, simplifying the adjustment process of values a and b.
It significantly reduces resistance and pressure during the movement of the contact suspension, improves the ease and efficiency of movement, simplifies the adjustment process of a and b values, and saves time and labor costs.
Smart Images
Figure CN223835443U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mobile contact networks, and in particular relates to a mobile contact network compensation tension adjustment device. Background Technology
[0002] There are two positions for the mobile overhead contact system: one is directly above the freight car to allow electric locomotives to haul freight trains; the other is to move it away from directly above the freight car to leave space for loading and unloading machinery to load goods. In order to ensure that the contact suspension is in a taut state, a compensation device for the contact suspension is installed on one of the anchor pillars at one end to provide tension for the contact suspension. However, when the contact suspension moves, because the tension compensation device provides a constant tension, the pressure and resistance on the intermediate pillar and the support device are relatively large when the contact suspension moves, making it impossible to move the contact suspension quickly and conveniently.
[0003] Furthermore, the a and b values of the compensation device change with temperature, and there are specific requirements for these values. Generally, the a value should not be less than 200 mm at the lowest temperature, and the b value should not be less than 200 mm at the highest temperature. Sometimes, it is necessary to adjust the a and b values of the compensation device. This adjustment typically involves installing a wire clamp on the compensation rope, connecting a lever hoist to the lower end of the clamp, and connecting the lower end of the lever hoist to the weight rod via a wire rope. By operating the lever hoist, the weight rod is moved along the wire rope. The rope is tightened to loosen the connection between the compensating rope and the weight rod. The connection between the compensating rope and the weight rod is then loosened. The position of the weight is adjusted using a hand-operated hoist. After adjustment, the compensating rope is reconnected to the weight rod, and the rope is turned back. The reserved compensating rope is then wound up. The hand-operated hoist is then adjusted to the unloading position so that the connection between the compensating rope and the weight is stressed. The wire rope, hand-operated hoist, and wire clamp are then removed, and the distance is re-measured. This completes the adjustment of the a and b values of the compensating device. This adjustment process is cumbersome, time-consuming, labor-intensive, and inefficient. Utility Model Content
[0004] The purpose of this utility model is to provide a mobile contact wire compensation tension adjustment device to solve the above-mentioned technical problems of the inability to quickly and conveniently realize the movement of the contact suspension and the cumbersome adjustment of the compensation device.
[0005] To achieve the above objectives, the specific technical solution of this utility model for a mobile contact wire compensation tension adjustment device is as follows:
[0006] A mobile contact wire tension adjustment device is installed on a lower anchor post at one end of a mobile contact wire anchor section. It is characterized by comprising a compensation device, one end of which is connected to the contact suspension, and the other end of which is rotatably connected to the lower anchor post. A movable support plate is slidably connected to the lower anchor post, and the movable support plate is driven to move up and down along the lower anchor post by a first winch. The compensation device includes a weight block, a weight rod, a compensation rope, and a pulley compensator. One end of the compensation rope is connected to the pulley compensator, and the other end is connected to the weight rod. One end of the compensation pulley assembly is fixedly connected to the contact suspension, and the other end is rotatably connected to the upper end of the lower anchor post via a tension sensor. The first winch and the tension sensor are connected to a control center.
[0007] Furthermore, a second winch is also installed at the bottom of the lower anchor support, and a wire clamp is installed at the end of the wire rope of the second winch. The second winch is also connected to the control center.
[0008] Furthermore, a first steering pulley is installed on the top of the lower anchor support, and the wire rope of the first winch passes around the first steering pulley and connects to the upper end of the movable pallet; a second steering pulley is provided on one side of the second winch.
[0009] Furthermore, the inner side of the clamping claw of the wire clamp is provided with a serrated anti-slip groove; the surface of the movable tray is provided with anti-slip texture.
[0010] This utility model discloses a mobile contact wire compensation tension adjustment device, which has the following advantages: The first winch drives the mobile support plate and the weight block to move synchronously, adjusting the tension provided by the compensation device in real time. This significantly reduces the resistance and pressure during the movement of the contact suspension, making the movement operation more convenient and faster, and improving the convenience and efficiency of the contact suspension movement. Furthermore, the connection between the wire clamp and the compensation rope, combined with the linkage operation of the second winch and the mobile support plate, eliminates the need for tools such as a lever hoist, significantly simplifying the adjustment process of values a and b, saving time and labor costs, reducing operational difficulty, and improving work efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the mobile contact network tension compensation and adjustment device of this utility model.
[0012] Figure 2 This is a schematic diagram of the structure of the present invention when it is in motion and suspended.
[0013] Figure 3 This is a schematic diagram of the structure of this utility model when adjusting the values of a and b;
[0014] The markings in the diagram are as follows: 1. Anchor support; 2. Contact suspension; 3. Compensation device; 31. Weight block; 32. Weight rod; 33. Compensation rope; 34. Pulley compensator; 4. First winch; 5. First steering pulley; 6. Moving pallet; 7. Second winch; 8. Second steering pulley; 9. Tension sensor. Detailed Implementation
[0015] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a mobile contact network tension adjustment device.
[0016] like Figure 1-3 As shown, this utility model discloses a mobile contact wire tension adjustment device, which is installed on the lower anchor post 1 at one end of the mobile contact wire anchor section. It includes a compensation device 3, one end of which is connected to the contact suspension 2, and the other end of which is rotatably connected to the lower anchor post 1. The compensation device 3 provides tension to the contact suspension 2. In addition, a movable support plate 6 is provided at the lower part of the compensation device 3 and is slidably connected to the lower anchor post 1. The movable support plate 6 is connected to the first winch 4 through a wire rope. The first winch 4 can realize the movable support plate 6 moving up and down along the lower anchor post 1. When the contact suspension 2 moves, by adjusting the position of the movable support plate 6, the movable support plate 6 contacts the compensation device 3, which can adjust the tension provided by the compensation device 3 to the contact suspension 2, thereby reducing the pressure and resistance during the movement of the contact suspension 2, making the movement of the contact suspension 2 more convenient and faster.
[0017] The specific compensation device 3 includes a weight block 31, a weight rod 32, a pulley compensator 34, and a compensation rope 33. The weight block 31 is installed on the weight rod 32. One end of the compensation pulley assembly is fixedly connected to the contact suspension 2, and the other end is rotatably connected to the upper end of the lower anchor support 1 through a tension sensor 9. The tension sensor 9 can monitor the tension between the compensation pulley assembly and the lower anchor support 1 in real time, which is the tension on the contact suspension 2. The compensation rope 33 is wound around the compensation pulley assembly. One end of the compensation rope 33 is connected to the compensation pulley assembly, and the other end is connected to the weight rod 32. The weight block 31 and the weight rod 32 provide tension to the contact suspension 2 through the compensation rope 33 and the compensation pulley assembly.
[0018] The first winch 4 is fixedly installed on one side of the lower anchor post 1. A first steering pulley 5 is installed on the top of the lower anchor post 1. The wire rope of the first winch 4 passes around the first steering pulley 5 and is connected to the upper end of the movable support plate 6. Under normal circumstances, the movable support plate 6 is located at the lower part of the lower anchor post 1 and does not contact the weight block 31. When the contact suspension 2 moves, the first winch 4 tightens and drives the movable support plate 6 to move upward so that the movable support plate 6 contacts the bottom of the weight block 31. The movable support plate 6 offsets part of the weight of the weight block 31, thereby reducing the tension of the contact suspension 2 and facilitating the movement of the contact suspension 2. Since the contact suspension 2 will also drive the weight block 31 to move up and down during the movement, a drive device is needed to drive the movable support plate 6 and the weight block 31 to move synchronously, keeping the bottom of the movable support plate 6 in contact with the weight block 31 and providing support force.
[0019] Furthermore, both the first winch 4 and the tension sensor 9 are connected to the mobile contact network control center. The control center can obtain the tension value of the contact suspension 2 measured by the tension sensor 9 in real time. Therefore, when it is necessary to move the contact suspension 2, the control center controls the first winch 4 to move the moving pallet 6 until it contacts the bottom of the weight block 31, thus offsetting part of the weight of the weight block 31. When the tension value of the contact suspension 2 measured by the tension sensor 9 decreases to a set value (this value can be set according to the actual situation on site), the control center controls the movement of the contact suspension 2. The movement of the contact suspension 2 will drive the movement of the weight block 31, thus simultaneously... The first winch 4 is controlled to drive the movable pallet 6 to move synchronously, so that the movable pallet 6 keeps in contact with the bottom of the weight block 31, and the tension on the contact suspension 2 is kept at the set value. In this way, the tension on the contact suspension 2 is reduced by the compensation tension adjustment device of this application during the movement of the contact suspension 2, making the movement of the contact suspension 2 more convenient and the pressure less. When the contact suspension 2 moves into place, the control center controls the first winch 4 to move the movable pallet 6 to the bottom, so that the movable pallet 6 separates from the bottom of the weight block 31, so that the weight block 31 provides constant tension to the contact wire, without affecting the up and down movement of the weight block 31.
[0020] In addition, to facilitate the adjustment of values a and b, i.e., adjusting the position of the weight block 31, a second winch 7 is installed at the bottom of the lower anchor support 1. The second winch 7, in conjunction with the moving plate, can efficiently adjust the position of the weight block 31. When the position of the weight block 31 needs to be adjusted, the end of the wire rope of the second winch 7 is first connected to the compensating rope 33 on the upper part of the weight rod 32 via a wire clamp. Simultaneously, the first winch 4 drives the moving plate to the bottom of the weight block 31. The winch 7 is also connected to the control center of the mobile contact network. At this time, the control center simultaneously controls the first winch 4 and the second winch 7 to tighten, so that the second winch 7 tightens the upper compensating line to provide tension. At the same time, the moving plate supports the weight block 31 upward to reduce its tension on the compensating rope 33, so that the tension on the tension sensor 9 remains unchanged. Gradually, the first winch 4 pulls the compensating rope 33 through the wire rope to fully provide the corresponding tension, while the moving plate lifts the weight block 31 and the weight rod 32, so that the weight rod 32 and the compensating rope 33 are in contact. When rope 33 is released and no tension is generated, the connection between the compensating line and the weight rod 32 is released. Then, the position of the weight block 31 is adjusted using the first winch 4 and the moving plate. After the position of the weight block 31 is adjusted, the compensating rope 33 is connected to the weight rod 32, and the reserved compensating rope 33 is wound up. Then, the control center simultaneously controls the first winch 4 and the second winch 7 to loosen, so that the wire rope of the second winch 7 gradually reduces the tension on the compensating rope 33, while the loosening of the first winch 4 causes the weight block 31 to gradually increase the tension on the compensating rope. The tension of the compensating rope 33 is kept constant until the weight block 31 fully provides the corresponding tension. The wire rope of the second winch 7 does not generate tension on the compensating rope 33. At this time, the tension on the compensating rope 33 is entirely provided by the weight block 31. Then, the wire clamp connected to the wire rope of the second winch 7 is removed from the compensating rope 33, and the adjusted distance is re-measured, thereby completing the adjustment of the a and b values of the compensating device 3. This adjustment process is highly automated, improves the efficiency of adjustment, and reduces the labor intensity of the operator.
[0021] Specifically, a second steering pulley 8 is also provided on one side of the second winch 7. When adjusting the a and b values of the compensation device 3, the wire rope on the second winch 7 is turned through the second steering pulley 8 and connected to the compensation rope 33. In addition, the movable pallet 6 is made of high-strength aluminum alloy and has anti-slip texture on the surface to ensure stability when in contact with the bottom of the weight block 31.
[0022] The tension sensor 9 is a wireless transmission type sensor that sends tension data to the control center in real time. The control center has a built-in PID algorithm module to dynamically adjust the winding and unwinding speeds of the first winch 4 and the second winch 7.
[0023] The wire rope end of the second winch 7 is equipped with a quick-release wire clamp (not shown), which can lock or release the compensation rope 33 with one click, simplifying the operation. The inner side of the clamping claws of the wire clamp is provided with a serrated anti-slip groove, which can bite into the surface of the compensation rope 33 to ensure a firm grip.
[0024] The mobile contact wire compensation tension adjustment device of this application drives the mobile support plate 6 and the weight block 31 to move synchronously through the first winch 4, and adjusts the tension provided by the compensation device 3 in real time. This significantly reduces the resistance and pressure during the movement of the contact suspension 2, making the movement operation more convenient and faster, and improving the convenience and efficiency of the movement of the contact suspension 2. In addition, the connection between the clamp and the compensation rope 33, combined with the linkage operation of the second winch 7 and the mobile support plate 6, eliminates the need for tools such as a lever hoist, significantly simplifies the adjustment process of the a and b values, saves time and labor costs, reduces the difficulty of operation, and improves work efficiency.
[0025] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A mobile contact wire tension adjustment device, disposed on a lower anchor post (1) at one end of an anchor section of the mobile contact wire, characterized in that, Includes a compensation device (3), one end of which is connected to the contact suspension (2), and the other end of which is rotatably connected to the lower anchor support (1); A movable support plate (6) is slidably connected to the lower anchor post (1), and the movable support plate (6) is driven to move up and down along the lower anchor post (1) by the first winch (4). The compensation device (3) includes a weight block (31), a weight rod (32), a compensation rope (33), and a pulley compensator (34). One end of the compensation rope (33) is connected to the pulley compensator (34), and the other end is connected to the weight rod (32). One end of the pulley compensator (34) is fixedly connected to the contact suspension (2), and the other end is rotatably connected to the upper end of the lower anchor column (1) through the tension sensor (9); The first winch (4) and tension sensor (9) are connected to the control center.
2. The mobile contact wire compensation tension adjustment device according to claim 1, characterized in that, The bottom of the lower anchor support (1) is also equipped with a second winch (7), and the end of the wire rope of the second winch (7) is equipped with a wire clamp. The second winch (7) is also connected to the control center.
3. The mobile contact wire compensation tension adjustment device according to claim 2, characterized in that, The top of the lower anchor support (1) is equipped with a first steering pulley (5), and the wire rope of the first winch (4) passes around the first steering pulley (5) and is connected to the upper end of the movable pallet (6).
4. The mobile contact wire compensation tension adjustment device according to claim 3, characterized in that, A second steering pulley (8) is provided on one side of the second winch (7).
5. A mobile contact wire compensation tension adjustment device according to claim 4, characterized in that, The inner side of the clamping claws of the wire clamp is provided with a serrated anti-slip groove.
6. A mobile contact wire compensation tension adjustment device according to claim 5, characterized in that, The surface of the movable pallet (6) is provided with anti-slip texture.