Tension spring damping structure

Abstract

The utility model relates to a tension spring damping structure, which comprises a spring, a first plate body and a second plate body, the first plate body comprises a mounting plate and a guide plate, the second plate body comprises a mounting part and a guide part, two ends of the spring are respectively fixed on the mounting plate and the mounting part, the guide plate and the guide part extend into the inner side of the spring, and the guide plate is fixed on the mounting part. The first plate body and the second plate body stretch out and draw back along with stretching out and drawing back of the spring, a guide groove is formed in the guide plate, a guide column is arranged on the guide part, the outer side wall of the guide plate and the outer side wall of the guide part are matched to support the inner side wall of the spring, and the guide column stretches into the guide groove to be matched for guiding. The vibration generated when the tension spring releases energy is reduced.

Description

Technical Field

[0001] This utility model relates to the field of switchgear, and in particular to a tension spring damping structure. Background Technology

[0002] With the rapid development of the power industry, switchgear, as an indispensable key component of the power system, directly affects the overall operating efficiency and safety of the power system due to its performance stability and reliability. Among the operating mechanisms of switchgear, spring-operated mechanisms are widely used due to their advantages such as simple structure, stable output, and ease of maintenance. Especially in the selection of energy storage elements, tension springs have become the first choice for many switchgear manufacturers because of their simple manufacturing process, low cost, and stable energy storage effect.

[0003] In spring-operated mechanisms, the tension spring serves as the primary energy storage element. One end of the spring is rotatably fixed to a specific part of the mechanism, while the other end is connected to the operating components via a crank arm mechanism. When energy storage is required, an external force (such as an electric motor or manual operation) drives the crank arm to perform a circular motion, thereby stretching the tension spring and storing energy. With the rotation of the crank arm and the stretching and releasing of the tension spring, the rapid release of the spring generates inertial overshoot. Because the two ends of the spring are fixed and restricted, the spring deforms, producing lateral reciprocating motion, which in turn generates significant vibration during energy release. This vibration not only affects the operational stability and accuracy of the switchgear but may also adversely impact surrounding equipment and the environment. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems and provide a tension spring damping structure. This application aims to reduce the vibration generated when the tension spring releases energy.

[0005] A tension spring damping structure includes a spring, a first plate, and a second plate. The first plate includes a mounting plate and a guide plate, and the second plate includes a mounting portion and a guide portion. Both ends of the spring are fixed to the mounting plate and the mounting portion, respectively. The guide plate and the guide portion extend into the inner side of the spring. The first plate and the second plate extend and retract with the extension and retraction of the spring. The guide plate is provided with a guide groove, and the guide portion is provided with a guide post. The outer walls of the guide plate and the guide portion cooperate to support the inner wall of the spring, and the guide post extends into the guide groove for guidance.

[0006] According to the tension spring damping structure of this application, by improving the installation structure between the spring, the first plate, and the second plate, the first and second plates are inserted into the inner side of the spring to provide support for the middle part of the spring that is prone to deformation, thereby making the spring less prone to deformation. Moreover, when the spring releases energy, the outer wall of the guide plate and the guide part supports and guides the spring, thereby reducing the vibration generated by the spring, so that the tension spring as a whole can reduce vibration when releasing energy. A guide groove and a guide post are provided between the guide plate and the guide part for guidance, avoiding relative contact between the guide plate and the guide part, which would affect the release of the spring's energy.

[0007] Furthermore, the mounting plate and mounting part are provided with fixing holes, which are located on the outer side of the guide plate or guide part in the extending direction. Both ends of the spring are respectively inserted into the fixing holes for fixation. This ensures that the positions of the spring and the guide plate and guide part do not interfere with each other, allowing the tension spring to store energy.

[0008] Furthermore, the guide groove is open in the direction facing the second plate, and the guide post extends into the guide groove through the open opening. The open design of the guide groove facilitates the insertion of the guide post into the guide groove during tension spring assembly.

[0009] Furthermore, even when the spring is at its maximum tension, the guide post remains within the guide groove. This prevents the guide structure between the guide plate and the guide section from failing.

[0010] Furthermore, the guide post is a bolt, and the guide part is provided with bolt holes, in which the bolt is fixed.

[0011] Furthermore, the bolt holes are spaced multiple times. This allows for easy replacement of the guide post's position, enabling its use with springs of varying elasticity.

[0012] Furthermore, the guide plate and the mounting plate are separate components, with the mounting plate and the second plate body positioned on the same horizontal plane, and the guide plate being fixed to the mounting plate by bolts.

[0013] Furthermore, a first fixing hole is provided on the central axis of the first plate, and a second fixing hole is provided on the central axis of the second plate. Attached Figure Description

[0014] Figure 1 This is an exploded view of the tension spring damping structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the tension spring damping structure of this utility model.

[0016] Figure 3 This is a perspective view of the tension spring damping structure of this utility model. Detailed Implementation

[0017] The accompanying drawings illustrate a tension spring damping structure of this utility model.

[0018] like Figures 1 to 3 The diagram illustrates a tension spring damping structure, comprising a spring 1, a first plate 2, and a second plate 3. The first plate 2 includes a mounting plate 22 and a guide plate 21. The second plate 3 includes a mounting portion 32 and a guide portion 31. Both ends of the spring 1 are fixed to the mounting plate 22 and the mounting portion 32, respectively. The guide plate 21 and the guide portion 31 extend into the inner side of the spring 1, providing support for the easily deformable middle portion of the spring 1, thus preventing deformation. The first plate 2 and the second plate 3 extend and retract with the spring 1. The guide plate 21 is provided with a guide groove 211. The guide portion 31 is provided with a guide post 311. The outer sidewalls of the guide plate 21 and the guide portion 31 cooperate to support the inner sidewall of the spring 1. The guide post 311 extends into the guide groove 211 for guidance. When the spring 1 releases energy, the guide plate 21 and the outer sidewalls of the guide portion 31 support and guide the spring 1, thereby reducing the vibration generated by the spring 1, so that the tension spring as a whole can reduce vibration when releasing energy. The guide groove 211 and the guide post 311 are provided between the guide plate 21 and the guide portion 31 for guidance, avoiding relative contact between the guide plate 21 and the guide portion 31, which would affect the release of energy of the spring 1.

[0019] like Figure 1 As shown, the mounting plate 22 and the mounting part 32 are provided with fixing holes {221, 321}. Multiple fixing holes {221, 321} are provided on both the left and right sides of the mounting plate 22 and the mounting part 32. The positions of the fixing holes {221, 321} are matched with the shape of the spring 1, so that the two ends of the spring 1 can be fixed on the mounting plate 22 and the mounting part 32 respectively. The fixing holes {221, 321} are located on the outer side of the extension direction of the guide plate 21 or the guide part 31. The two ends of the spring 1 are inserted into the fixing holes {221, 321} respectively for fixation. This ensures that the positions of the spring 1 and the guide plate 21 and the guide part 31 do not conflict with each other, so that the tension spring can accumulate energy through the spring 1.

[0020] like Figures 1 to 3As shown, the guide groove 211 is open in the direction facing the second plate 3, and the guide post 311 extends into the guide groove 211 through the open. During the assembly of the tension spring, the guide plate 21 and the guide part 31 will extend into the inside of the spring 1. Due to the restriction of the spring 1, if the guide groove 211 is not set to be open, the guide post 311 will be difficult to extend into the guide groove 211. In this application, the guide groove 211 is set to be open in the direction facing the second plate 3, so that when the guide plate 21 and the guide part 31 extend into the spring 1, the guide post 311 can be easily extended into the guide groove 211.

[0021] like Figure 2 As shown, when the spring 1 is in the ultimate tension state, the guide post 311 is still in the guide groove 211, which avoids the failure of the guide structure between the guide plate 21 and the guide part 31.

[0022] like Figure 1 and Figure 2 As shown, the guide post 311 is a bolt, and the guide part 31 is provided with bolt holes 312. The bolt is fixed in the bolt holes 312. The bolt serves as the guide post 311, which has a simple structure and low cost. Multiple bolt holes 312 are provided at intervals, and the guide post 311 can also easily switch positions between multiple bolt holes 312.

[0023] like Figure 2 As shown, the guide plate 21 and the mounting plate 22 are separately arranged. The mounting plate 22 and the second plate 3 are arranged on the same horizontal plane. The guide plate 21 is fixed to the mounting plate 22 by bolts. In the embodiment shown in the figure of this application, the guide plate 21 is provided on one side of the mounting plate 22. In addition, the guide plate 21 can be provided on both sides of the mounting plate 22, so that the guiding structure between the guide plate 21 and the guide part 31 is more stable.

[0024] like Figure 3 As shown, the first plate 2 has a first fixing hole 23 on its central axis, which is used to fix the tension spring. The second plate 3 has a second fixing hole 33 on its central axis, which is used to connect with the crank arm in the switch cabinet. This allows the tension spring of this application to store energy under the action of the crank arm and to release energy to act on the crank arm.

[0025] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A tension spring damping structure, characterized in that, The device includes a spring, a first plate, and a second plate. The first plate includes a mounting plate and a guide plate, and the second plate includes a mounting portion and a guide portion. Both ends of the spring are fixed to the mounting plate and the mounting portion, respectively. The guide plate and the guide portion extend into the inner side of the spring. The first plate and the second plate extend and retract with the extension and retraction of the spring. The guide plate is provided with a guide groove, and the guide portion is provided with a guide post. The outer walls of the guide plate and the guide portion cooperate to support the inner wall of the spring, and the guide post extends into the guide groove to provide guidance.

2. The tension spring damping structure according to claim 1, characterized in that, The mounting plate and mounting part are provided with fixing holes, which are located on the outer side of the guide plate or guide part in the extension direction, and the two ends of the spring are respectively inserted into the fixing holes for fixation.

3. The tension spring damping structure according to claim 1, characterized in that, The guide groove is open in the direction facing the second plate, and the guide post extends into the guide groove through the open.

4. The tension spring damping structure according to claim 3, characterized in that, When the spring is in its ultimate tension state, the guide post remains in the guide groove.

5. The tension spring damping structure according to claim 1, characterized in that, The guide post is a bolt, and the guide part is provided with bolt holes, and the bolt is fixed in the bolt holes.

6. The tension spring damping structure according to claim 5, characterized in that, The bolt holes are spaced out in multiples.

7. The tension spring damping structure according to claim 1, characterized in that, The guide plate and the mounting plate are separate components. The mounting plate and the second plate are positioned on the same horizontal plane. The guide plate is fixed to the mounting plate by bolts.

8. The tension spring damping structure according to claim 1, characterized in that, The first plate has a first fixing hole on its central axis, and the second plate has a second fixing hole on its central axis.

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