Spring compensation device based on railway contact network

Abstract

The utility model relates to the technical field of compensation devices, and discloses a spring compensation device based on a railway overhead line system, which comprises a mounting frame, a spring, a spring and a spring, a compensation rope is mounted in the brake ratchet wheel; a compensation assembly is mounted at the bottom of the compensation rope; during use, only one end of the compensation rope needs to be mounted on the brake ratchet wheel, the other end of the compensation rope is mounted on the top of the working rod, and when the length of the contact network changes due to thermal expansion and cold contraction, the compensation rope can pull or push the movable plate to move, so that the spring is compressed or released, and the length of the compensation rope is adjusted through the elastic force of the spring; when the tension interval of the spring needs to be adjusted, the distance between the movable plate and the adjusting plate can be changed under the cooperation of the original tension of the compensation rope only by screwing a screw on the adjusting rod and adjusting the position of the adjusting plate through a wrench, then the acting force of the spring on the movable plate is changed when the movable plate moves up and down, and convenience and rapidness are achieved.

Description

Technical Field

[0001] This utility model relates to the field of compensation device technology, specifically a compensation device based on railway contact wire springs. Background Technology

[0002] In the power supply equipment of electrified railways, the catenary and contact wire of the overhead contact system are affected by environmental and temperature changes, resulting in thermal elongation and cold contraction, which causes continuous changes in the tension of the line. Although these changes are very slow, they are enough to prevent the overhead contact line from working properly. In order to ensure the normal operation of the overhead contact line, tension compensation devices are used to eliminate the changes in the catenary and contact wire caused by temperature.

[0003] Currently, the contact wire compensation devices used in my country are generally weighted compensators, which have low structural strength, poor connection stability, and are cumbersome to install and adjust, making them unsuitable for later maintenance and replacement. Related technologies, such as the electrified railway contact wire tension compensation device disclosed in CN212332433U, use spring compensators to maintain a constant and unchanging tension on the contact wire, thus achieving constant tension compensation for the electrified railway contact wire. However, when compensating for contact wires of different heights and lengths, the required tension range varies, and the fixed spring compensator is not convenient for adjusting the tension range according to the height and length of the contact wire, thus having certain limitations and causing inconvenience in use. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a railway contact wire spring compensation device, which has the advantages of easy replacement of the compensation device and convenient adjustment of the tension range according to the height and length of the contact wire, thus solving the problem that existing railway contact wire spring compensation devices are not easy to adjust the tension range.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a railway contact wire spring compensation device, comprising: a mounting frame with a brake ratchet mounted on one side; a compensation rope installed inside the brake ratchet; a compensation component installed at the bottom of the compensation rope; the compensation component comprising: a fixing box installed directly below the compensation rope; a working rod slidably connected inside the fixing box; a movable plate fixedly connected to the bottom of the working rod, and the movable plate slidably connected to the inside of the fixing box; a spring sleeved on the outside of the working rod, and an adjusting plate slidably connected to the fixing box above the spring; a fixing seat fixedly connected to one side of the fixing box and the side of the adjusting plate; an adjusting rod rotatably connected inside the fixing seat, and the adjusting rod threadedly connected to one side of the adjusting plate; and a sealing plate fixedly installed on the top of the fixing box.

[0008] In some embodiments, a protective component is provided on one side of the fixing box; the protective component includes: a limiting seat, which is fixedly connected to one side of the fixing box; a protective plate is slidably connected inside the limiting seat through a sliding groove; and a rain guide plate is fixedly connected to the top of the protective plate.

[0009] In some embodiments, the top of the rain deflector is provided with a ramp, one side of which extends to the outside of the protective plate.

[0010] In some embodiments, a sealing gasket is provided between the internal sliding groove of the limiting seat and the protective plate.

[0011] In some embodiments, the inside of the fixing box has a sliding groove, and the top of the fixing box has a recess. The size of the recess cross-section is the same as the size of the sealing plate cross-section and larger than the size of the sliding groove inside the fixing box.

[0012] In some embodiments, a through groove communicating with an internal sliding groove is provided on one side of the fixing box, and the width of the through groove is the same as the width of one side of the adjusting plate.

[0013] In some embodiments, the spring outside the working rod initially has a certain compressive force.

[0014] In some embodiments, the top of the sealing plate has a through hole, which is slidably connected to the working rod, and a waterproof gasket is provided between the through hole and the working rod.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a railway contact wire spring compensation device, which has the following advantages:

[0017] In use, this invention simply requires mounting one end of the compensating rope on the brake ratchet and the other end on the top of the working rod. When the contact wire expands or contracts due to heat, causing a change in length, the compensating rope pulls or pushes the moving plate, thereby compressing or releasing the spring. The length of the compensating rope is adjusted by the spring force. When it is necessary to adjust the spring tension range, simply use a wrench to turn the screw on the adjusting rod to adjust the position of the adjusting plate. This changes the distance between the moving plate and the adjusting plate under the original tension of the compensating rope, thereby changing the force exerted by the spring on the moving plate when it moves up and down. It is convenient and quick. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the fixing box of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the limiting seat of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the compensation component of this utility model.

[0022] In the picture:

[0023] 11. Mounting bracket; 12. Brake ratchet; 13. Compensating rope;

[0024] 2. Compensation component; 21. Fixing box; 22. Working rod; 23. Moving plate; 24. Adjusting plate; 25. Fixing seat; 26. Adjusting rod; 27. Sealing plate;

[0025] 3. Protective components; 31. Limiting seat; 32. Protective plate; 33. Rain guide plate. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0030] In use, guide ropes are installed on the guide wheels on both sides of the brake ratchet. The guide ropes are connected to the tensioner, and the tensioner is connected to the contact wire rope. Then, one end of the compensation rope is connected to the brake ratchet, and the other end of the compensation rope is connected to the weight. The weight of the weight compensates for the length of the contact wire.

[0031] In related technologies, such as the electrified railway catenary tension compensation device disclosed in CN212332433U, the tension on the catenary conductor is kept constant and unchanging by a spring compensator, thereby achieving the function of constant tension compensation for the electrified railway catenary. However, when compensating for the length of catenaries of different heights and lengths, the required tension range is different. The fixed spring compensator is not convenient to adjust the tension range according to the height and length of the catenary, which has certain limitations and causes inconvenience in use.

[0032] To address some of the problems in related technologies, this application provides a spring compensation device based on railway contact wire. In use, one end of the compensation rope 13 is simply mounted on the brake ratchet 12, and the other end is mounted on the top of the working rod 22. When the contact wire expands or contracts due to heat, causing a change in length, the compensation rope pulls or pushes the moving plate 23 to move, thereby compressing or releasing the spring. The length of the compensation rope is adjusted by the spring force. When it is necessary to adjust the spring tension range, simply use a wrench to turn the screw on the adjusting rod 26 to adjust the position of the adjusting plate 24. This changes the distance between the moving plate 23 and the adjusting plate 24 under the original tension of the compensation rope, thereby changing the force exerted by the spring on the moving plate 23 when it moves up and down. This method is convenient and quick.

[0033] This application is described below with reference to the accompanying drawings and specific embodiments:

[0034] Combination Figures 1-4 This application provides a spring compensation device based on railway contact network, including: a mounting frame 11, on one side of which a brake ratchet 12 is mounted; a compensation rope 13 is mounted inside the brake ratchet 12; a compensation component 2 is mounted at the bottom of the compensation rope 13; the compensation component 2 includes: a fixing box 21, mounted directly below the compensation rope 13; a working rod 22 is slidably connected inside the fixing box 21; a moving plate 23 is fixedly connected to the bottom of the working rod 22, and the moving plate 23 is slidably connected to the inside of the fixing box 21; a spring is sleeved on the outside of the working rod 22, and an adjusting plate 24 is slidably connected to the fixing box 21 above the spring; a fixing seat 25 is fixedly connected to one side of the fixing box 21 and the side of the adjusting plate 24; an adjusting rod 26 is rotatably connected inside the fixing seat 25, and the adjusting rod 26 is threadedly connected to one side of the adjusting plate 24; and a sealing plate 27 is fixedly mounted on the top of the fixing box 21.

[0035] In use, guide ropes are installed on the guide wheels on both sides of the brake ratchet 12. These guide ropes are connected to the tensioner, which in turn connects to the contact wire rope. One end of the compensating rope 13 is installed on the brake ratchet 12, and the other end is installed on the top of the working rod 22. When the contact wire shortens due to cold, the compensating rope pulls the moving plate 23 upwards, compressing the spring outside the working rod 22 and increasing its elastic potential energy. This increases the thrust on the moving plate 23 until it balances with the contact wire tension. When the contact wire lengthens due to heat, the compensating rope 13 moves downwards under the tension of the moving plate 23, causing the brake ratchet 12 to rotate. The guide wheels on both sides of the brake ratchet 12 also rotate, winding up the rope on the side of the tensioner. This brings the tensioner closer to the guide wheels, thus pulling the contact wire rope closer and reducing the contact wire sagging. When it is necessary to adjust the spring tension range, use a wrench to turn the screw on the adjusting rod 26 to adjust the position of the adjusting plate 24. Since the compensating rope 13 always pulls the moving plate 23 upward, when the adjusting plate 24 moves downward, the distance between the moving plate 23 and the adjusting plate 24 changes, compressing the spring outside the working rod 22 and pushing the moving plate 23 downward a little. Since there is an upward pulling force on the moving plate 23, when the adjusting plate 24 is adjusted downward, the distance between the moving plate 23 and the adjusting plate 24 will still become smaller. At this time, when the length of the contact wire changes due to thermal expansion and contraction, causing the compensating rope 13 to pull upward or push the moving plate 23, since the distance between the moving plate 23 and the adjusting plate 24 is smaller than before, the spring is compressed more, so the pushing force of the spring will also be enhanced, thereby realizing the adjustment of the compensation range, which is convenient and quick.

[0036] In some embodiments, a protective component 3 is provided on one side of the fixed box 21; the protective component 3 includes: a limiting seat 31, which is fixedly connected to one side of the fixed box 21; a protective plate 32 is slidably connected inside the limiting seat 31 through a sliding groove; a rain guide plate 33 is fixedly connected to the top of the protective plate 32, and the rain guide plate 33 can be used to drain rainwater during use, reducing the probability of rust on the adjusting rod 26 inside the limiting seat 31.

[0037] In some embodiments, the top of the rain deflector 33 is provided with a slope, one side of which extends to the outside of the protective plate 32, so as to facilitate the drainage of rainwater to a greater distance and further reduce the probability of corrosion of the adjustment rod 26.

[0038] In some embodiments, a sealing gasket is provided between the internal slide groove of the limiting seat 31 and the protective plate 32 to enhance the effect of preventing corrosion.

[0039] In some embodiments, the inside of the fixing box 21 has a sliding groove, and the top of the fixing box 21 has a recess. The size of the recess cross section is the same as the size of the sealing plate 27 cross section and is larger than the size of the sliding groove inside the fixing box 21, which facilitates the installation of the sealing plate 27 by screws and facilitates the limiting of the internal spring.

[0040] In some embodiments, a through groove communicating with the internal sliding groove of the fixed box 21 is provided on one side of the fixed box 21. The width of the through groove is the same as the width of one side of the adjusting plate 24, thereby enhancing the stability of the adjusting plate 24 sliding on one side of the fixed box 21.

[0041] In some embodiments, the spring outside the working rod 22 initially has a certain compressive force. When the contact wire is heated and becomes longer, the compensation rope 13 can push the moving plate 23 downward through the initial compressive force of the spring, thereby driving the brake ratchet 12 to rotate. The guide wheels on both sides of the brake ratchet 12 also rotate, thereby winding up the pull rope on the side of the tensioner, which facilitates the length compensation of the contact wire.

[0042] In some embodiments, the top of the sealing plate 27 has a through hole, which is slidably connected to the working rod 22, and a waterproof gasket is provided between the through hole and the working rod 22 to reduce the probability of corrosion of the internal spring.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0044] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring compensation device based on railway contact wire, characterized in that, include: Mounting bracket (11), on one side of which a brake ratchet (12) is mounted; a compensating rope (13) is installed inside the brake ratchet (12); a compensating component (2) is mounted at the bottom of the compensating rope (13); the compensating component (2) includes: A fixed box (21) is installed directly below the compensating rope (13); a working rod (22) is slidably connected inside the fixed box (21); a moving plate (23) is fixedly connected to the bottom of the working rod (22), and the moving plate (23) is slidably connected to the inside of the fixed box (21); a spring is sleeved on the outside of the working rod (22), and an adjusting plate (24) is slidably connected to the fixed box (21) above the spring; a fixed seat (25) is fixedly connected to one side of the fixed box (21) and the side of the adjusting plate (24); an adjusting rod (26) is rotatably connected inside the fixed seat (25), and the adjusting rod (26) is threadedly connected to one side of the adjusting plate (24); a sealing plate (27) is fixedly installed on the top of the fixed box (21).

2. A spring compensation device for a catenary of a railway, according to claim 1, characterized in that: A protective component (3) is provided on one side of the fixing box (21); the protective component (3) includes: A limiting seat (31) is fixedly connected to one side of the fixing box (21); a protective plate (32) is slidably connected inside the limiting seat (31) through a sliding groove; a rain guide plate (33) is fixedly connected to the top of the protective plate (32).

3. A spring compensation device for a catenary of a railway, according to claim 2, characterized in that: The top of the rain guide plate (33) is provided with a slope, one side of which extends to the outside of the protective plate (32).

4. The spring compensation device based on the overhead contact system of claim 2, wherein: A sealing gasket is provided between the internal groove of the limiting seat (31) and the protective plate (32).

5. The spring compensation device based on the overhead contact system of a railway according to claim 1, characterized in that: The fixed box (21) has a sliding groove inside and a groove on the top of the fixed box (21). The size of the groove cross-section is the same as the size of the sealing plate (27) cross-section and larger than the size of the sliding groove inside the fixed box (21).

6. The spring compensation device based on the overhead contact system of a railway according to claim 1, characterized in that: The fixed box (21) has a through groove on one side that communicates with the internal sliding groove of the fixed box (21), and the width of the through groove is the same as the width of one side of the adjusting plate (24).

7. A railway contact wire spring compensation device according to claim 1, characterized in that: The spring outside the working rod (22) initially has a certain compressive force.

8. The spring compensation device based on the overhead contact system of a railway according to claim 1, characterized in that: The top of the sealing plate (27) has a through hole, which is slidably connected to the working rod (22), and a waterproof pad is provided between the through hole and the working rod (22).

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