Windproof vibration relieving device for overhead transmission line

Abstract

The utility model discloses a windproof vibration relieving device for an overhead transmission line, and relates to the technical field of electric power tools. The windproof vibration relieving device for the overhead transmission line comprises a device base, a guide rail frame, a first anti-vibration table, a second anti-vibration table, a main spring and a damper, wherein the device base is used for fixing the device at a target position; the guide rail frame is arranged on the device base. According to the windproof vibration relieving device for the overhead transmission line, through the synergistic effect of the first anti-vibration table, the second anti-vibration table, the main spring and the damper, when the line vibrates due to wind power, the first anti-vibration table and the second anti-vibration table can relatively slide on the guide rail frame, the main spring absorbs vibration energy, and the damper converts the vibration energy into heat energy for dissipation; therefore, harm caused by resonance is effectively relieved, the problem of vibration amplitude expansion caused by resonance is avoided, the cable does not need to be maintained and replaced frequently, and manpower and maintenance cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically to a wind-resistant vibration mitigation device for overhead transmission lines. Background Technology

[0002] When wind acts on overhead transmission lines, the lines, due to their flexibility and length, will vibrate under the excitation of the wind. Continuous vibration can cause fatigue cracks in the metal materials of the transmission lines, reducing the strength and service life of the lines. Current technology usually reduces the span of the conductors by increasing the number of towers, thereby reducing the average operating tension of the conductors and increasing the damping effect of the conductors, thus reducing the damage caused by vibration.

[0003] In the prior art, although such methods can reduce the average operating tension of the conductor, in actual operation, when the wind force reaches the conductor's own resonance critical value, it will cause the vibration amplitude of the transmission line to increase, which will also lead to vibration damage. Therefore, it increases the damage of some transmission lines, making it necessary to frequently maintain and replace cables in certain sections, increasing manpower and maintenance costs. In view of the shortcomings of the prior art, this utility model provides a wind vibration mitigation device for overhead transmission lines to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wind vibration mitigation device for overhead transmission lines. Through the coordinated action of a first vibration damping platform, a second vibration damping platform, a main spring, and a damper, when wind causes line vibration, the first and second vibration damping platforms can slide relative to each other on the guide rail. The main spring absorbs the vibration energy, and the damper converts the vibration energy into heat energy for dissipation, thereby effectively mitigating the harm caused by resonance and avoiding the problem of increased vibration amplitude due to resonance. The cables do not need to be frequently maintained or replaced, greatly reducing manpower and maintenance costs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a wind-resistant vibration mitigation device for overhead transmission lines, comprising a device base, a guide rail frame, a first vibration damping platform, a second vibration damping platform, a main spring, and a damper;

[0006] The device base is used to fix the device in the target position;

[0007] The guide rail frame is mounted on the base of the device;

[0008] The first vibration damping platform is slidably connected to the guide rail frame, and the first vibration damping platform is provided with a first guide wheel;

[0009] The second vibration damping platform is slidably connected to the guide rail frame, and the second vibration damping platform is provided with a second guide wheel;

[0010] The main spring is positioned between the first and second vibration damping platforms;

[0011] The damper is positioned between the first vibration damping platform and the second vibration damping platform.

[0012] Preferably, the base of the device is provided with a protective top plate for protecting the damper and the guide rail frame.

[0013] Preferably, a limiting component is provided between the protective top plate and the device base, the limiting component comprising:

[0014] A positioning post is provided on the base of the device;

[0015] A sleeve is provided on the protective top plate and sleeved onto the positioning post;

[0016] The locking bolt passes through the sleeve and is threaded into the positioning pin.

[0017] Preferably, the device base has a fixing hole.

[0018] Preferably, the first vibration damping platform is provided with a first auxiliary spring, and the second vibration damping platform is provided with a second auxiliary spring, the ends of the first auxiliary spring and the second auxiliary spring being fixed to the guide rail frame respectively.

[0019] Preferably, both the first and second auxiliary springs are mounted on the guide rail frame.

[0020] This utility model discloses a wind vibration mitigation device for overhead transmission lines, which has the following beneficial effects:

[0021] This overhead transmission line wind vibration mitigation device, through the coordinated action of the first vibration damping platform, the second vibration damping platform, the main spring, and the damper, allows the first and second vibration damping platforms to slide relative to each other on the guide rail when wind causes line vibration. The main spring absorbs the vibration energy, and the damper converts the vibration energy into heat energy for dissipation, thereby effectively mitigating the harm caused by resonance and avoiding the problem of increased vibration amplitude caused by resonance. The cable does not need to be frequently maintained or replaced, greatly reducing manpower and maintenance costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;

[0024] Figure 2This is a second-view schematic diagram of the overall structure of this utility model;

[0025] Figure 3 This is a disassembly diagram of the protective top plate of this utility model;

[0026] Figure 4 This is a rear view of the present invention.

[0027] In the diagram: 1. Device base; 11. Fixing hole; 2. Guide rail frame; 3. First vibration damping platform; 31. First guide wheel; 32. First auxiliary spring; 4. Second vibration damping platform; 41. Second guide wheel; 42. Second auxiliary spring; 5. Main spring; 6. Damper; 7. Protective top plate; 8. Limiting assembly; 81. Positioning post; 82. Sleeve; 83. Locking bolt. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] This application provides a wind-resistant vibration mitigation device for overhead transmission lines, which solves the problem in the prior art where the vibration amplitude of the transmission line increases when the wind force reaches the resonance critical value of the conductor itself, which also leads to vibration damage. This increases the damage to some transmission lines, making it necessary to frequently maintain and replace cables in certain sections, increasing manpower and maintenance costs.

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] Example 1:

[0032] This utility model discloses a wind-resistant and vibration-reducing device for overhead transmission lines, according to the appendix. Figure 1-4 As shown, it includes a device base 1, a guide rail frame 2, a first vibration damping platform 3, a second vibration damping platform 4, a main spring 5, and a damper 6;

[0033] The device base 1 is used to fix the device in the target position. The device base 1 is the supporting foundation of the entire wind vibration mitigation device, and its function is to firmly fix the device in the target position, such as a power transmission tower or other structure. The device base 1 is provided with fixing holes 11. Through the design of fixing holes 11, bolts or other fasteners can be used to reliably connect the device to the installation position, ensuring that the device will not be displaced due to external forces during operation, and providing stable support for the normal operation of subsequent components.

[0034] The guide rail frame 2 is mounted on the device base 1; the guide rail frame 2 is mounted on the device base 1 to provide sliding tracks for the first vibration damping platform 3 and the second vibration damping platform 4. This allows the first vibration damping platform 3 and the second vibration damping platform 4 to slide smoothly along the guide rail frame 2, thereby realizing the relative movement of the cable when subjected to external forces such as wind, and achieving the purpose of mitigating vibration.

[0035] The first vibration damping platform 3 is slidably connected to the guide rail frame 2, and the first vibration damping platform 3 is provided with a first guide wheel 31; the second vibration damping platform 4 is slidably connected to the guide rail frame 2, and the second vibration damping platform 4 is provided with a second guide wheel 41.

[0036] The power transmission line cable will be arranged in an "S" shape, passing around the first guide wheel 31 and the second guide wheel 41 respectively, and will be stretched taut.

[0037] The first vibration damping platform 3 and the second vibration damping platform 4 are slidably connected to the guide rail frame 2, and the two can move relative to each other. When the overhead transmission line is subjected to wind force and vibrates, the first vibration damping platform 3 and the second vibration damping platform 4 will move relative to each other along the guide rail frame 2 to absorb and disperse the vibration energy.

[0038] The main spring 5 is disposed between the first vibration damping platform 3 and the second vibration damping platform 4; the damper 6 is disposed between the first vibration damping platform 3 and the second vibration damping platform 4.

[0039] When the first vibration damping platform 3 and the second vibration damping platform 4 move relative to each other, the main spring 5 undergoes elastic deformation, storing and releasing energy. The working principle of the damper 6 is to utilize the damping structure to generate damping force when the first vibration damping platform 3 and the second vibration damping platform 4 move relative to each other. This damping force can convert vibration energy into heat energy and other forms of energy dissipation, further enhancing the vibration reduction effect of the device. Working in conjunction with the main spring 5, it improves the device's ability to mitigate vibrations of overhead transmission lines.

[0040] A protective top plate 7 is provided above the base 1 of the device to protect the damper 6 and the guide rail frame 2. The main function of the protective top plate 7 is to protect the damper 6 and the guide rail frame 2. In outdoor environments, the protective top plate 7 can block the damper 6 and the guide rail frame 2 from corrosion and damage caused by direct sunlight and other factors, extending the service life of the device and ensuring its normal operation.

[0041] The first vibration damping platform 3 is provided with a first auxiliary spring 32, and the second vibration damping platform 4 is provided with a second auxiliary spring 42. The ends of the first auxiliary spring 32 and the second auxiliary spring 42 are respectively fixed to the guide rail frame 2. The first auxiliary spring 32 and the second auxiliary spring 42 are both sleeved on the guide rail frame 2.

[0042] The function of the first auxiliary spring 32 and the second auxiliary spring 42 is to provide additional elastic support for the first vibration damping platform 3 and the second vibration damping platform 4, and to assist the main spring 5 in better absorbing and dispersing vibration energy. At the same time, the design of being sleeved on the guide rail frame 2 can further improve the stability and vibration reduction performance of the device.

[0043] Example 2:

[0044] This utility model discloses a wind-resistant and vibration-reducing device for overhead transmission lines, according to the appendix. Figure 1-4 As shown, it includes a device base 1, a guide rail frame 2, a first vibration damping platform 3, a second vibration damping platform 4, a main spring 5, and a damper 6;

[0045] The device base 1 is used to fix the device at the target position;

[0046] The guide rail frame 2 is mounted on the device base 1;

[0047] The first vibration damping platform 3 is slidably connected to the guide rail frame 2, and the first vibration damping platform 3 is provided with a first guide wheel 31;

[0048] The second vibration damping platform 4 is slidably connected to the guide rail frame 2, and the second vibration damping platform 4 is provided with a second guide wheel 41;

[0049] The main spring 5 is positioned between the first vibration damping platform 3 and the second vibration damping platform 4;

[0050] The damper 6 is positioned between the first vibration damping platform 3 and the second vibration damping platform 4.

[0051] A limiting component 8 is provided between the protective top plate 7 and the device base 1. The limiting component 8 includes:

[0052] Positioning post 81 is mounted on device base 1;

[0053] Sleeve 82 is mounted on the protective top plate 7 and sleeved onto the positioning post 81;

[0054] The locking bolt 83 passes through the sleeve 82 and is threaded into the positioning pin 81.

[0055] The limiting assembly 8 includes a positioning post 81, a sleeve 82, and a locking bolt 83. By locking the positions of the positioning post 81 and the sleeve 82 with the locking bolt 83, it is possible to facilitate the disassembly and assembly of the protective top plate 7 and the device base 1, thereby making it easy to replace the protective top plate 7 in case of damage and ensuring the stability and safety of the device structure.

[0056] 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 the element.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wind vibration mitigation device for overhead transmission lines, characterized in that, include: Device base (1), used to fix the device in the target position; The guide rail bracket (2) is mounted on the base (1) of the device; The first vibration damping platform (3) is slidably connected to the guide rail frame (2), and the first vibration damping platform (3) is provided with a first guide wheel (31). The second vibration damping platform (4) is slidably connected to the guide rail frame (2), and the second vibration damping platform (4) is provided with a second guide wheel (41). The main spring (5) is disposed between the first anti-vibration platform (3) and the second anti-vibration platform (4); A damper (6) is disposed between the first vibration damping platform (3) and the second vibration damping platform (4).

2. The wind vibration mitigation device for overhead transmission lines according to claim 1, characterized in that, The device base (1) is provided with a protective top plate (7) for protecting the damper (6) and the guide rail frame (2).

3. The wind vibration mitigation device for overhead transmission lines according to claim 2, characterized in that, A limiting component (8) is provided between the protective top plate (7) and the device base (1), the limiting component (8) comprising: A positioning post (81) is disposed on the base (1) of the device; A sleeve (82) is disposed on the protective top plate (7) and sleeved on the positioning post (81); The locking bolt (83) passes through the sleeve (82) and is threaded into the positioning pin (81).

4. The wind vibration mitigation device for overhead transmission lines according to claim 1, characterized in that, The device base (1) has a fixing hole (11).

5. The wind vibration mitigation device for overhead transmission lines according to claim 1, characterized in that, The first vibration damping platform (3) is provided with a first auxiliary spring (32), and the second vibration damping platform (4) is provided with a second auxiliary spring (42). The ends of the first auxiliary spring (32) and the second auxiliary spring (42) are respectively fixed to the guide rail frame (2).

6. The wind vibration mitigation device for overhead transmission lines according to claim 5, characterized in that, The first auxiliary spring (32) and the second auxiliary spring (42) are both mounted on the guide rail frame (2).

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