Device for reducing resonance of opening spring of high-voltage switch

Abstract

The utility model discloses a device for reducing resonance of a high-voltage switch opening spring, and relates to a damping device for a high-voltage switch. The utility model aims to provide the device for reducing resonance of the opening spring of the high-voltage switch, which is simple in structure and high in applicability, and can reduce the resonance problem of the opening spring and damage to a metal plate and a structure caused by the resonance problem. The device for reducing resonance of the opening spring of the high-voltage switch comprises a vibration damper mounting plate, a bolt is arranged on the vibration damper mounting plate, a lock nut is arranged on the bolt, a pressure spring is sleeved on a screw rod of the bolt, a shaft pin is further arranged on the vibration damper mounting plate, a pin sleeve is sleeved on the outer side of the shaft pin, and the pin sleeve is contacted with the opening spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy power station distribution equipment technical field especially relates to a device that reduces high voltage switch opening spring resonance. BACKGROUND

[0002] With the increasing demand for renewable energy worldwide, photovoltaic technology has developed rapidly. In the 21st century, photovoltaic and wind power technologies have matured and are widely used around the world. From large power stations to small household systems, photovoltaic and wind power technologies play an important role in applications of various scales. As an important part of photovoltaic and wind power generation systems, new energy circuit breakers have also developed rapidly with the development of photovoltaic and wind power technologies, and the scheme has gradually improved from the initial simple breaking function to intelligent function. The demand for it in the field of power transmission and transformation and smart grid is also growing.

[0003] Due to the structure and functional characteristics of high voltage switch, the opening spring is relatively long, but when the circuit breaker is closed, the rebound time of the opening spring is relatively long, which can cause mechanical resonance of the partition plate in the box transformer, resulting in loud noise and possibly causing large deformation and dynamic stress of the metal plate and structure. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a device that can reduce the resonance of the opening spring of a high voltage switch and avoid damage to the opening spring, has a simple structure and strong applicability.

[0005] The utility model relates to a device that reduces the resonance of the opening spring of a high voltage switch, which comprises a damping device mounting plate, a bolt provided on the damping device mounting plate, a lock nut provided on the bolt, a pressure spring sleeved on the screw rod of the bolt, an axle pin provided on the damping device mounting plate, a pin sleeve sleeved on the outer side of the axle pin, and the pin sleeve being in contact with the opening spring.

[0006] The utility model relates to a device that reduces the resonance of the opening spring of a high voltage switch, wherein the damping device mounting plate is an U-shaped plate structure integrally formed.

[0007] The utility model relates to a device that reduces the resonance of the opening spring of a high voltage switch, wherein the damping device mounting plate comprises a bottom plate and side plates on both sides, the bolt is mounted on the bottom plate, and the axle pin is mounted on the side plate.

[0008] The utility model relates to a device that reduces the resonance of the opening spring of a high voltage switch, wherein the two side plates of the damping device mounting plate are provided with the axle pin through a split pin.

[0009] The utility model relates to a device that reduces the resonance of the opening spring of a high voltage switch, wherein the damping device mounting plate is fixedly installed on the partition plate of the high voltage switch frame and located on one side of the opening spring.

[0010] The utility model discloses a device for reducing the resonance of the opening spring of a high-voltage switch, wherein the screw rod of the bolt passes through the partition plate, and the two ends of the compression spring are in contact with the end face of the lock nut and the partition plate respectively.

[0011] The utility model discloses a device for reducing the resonance of the opening spring of a high-voltage switch, wherein the bolt and the lock nut are of M8 type.

[0012] The utility model discloses a device for reducing the resonance of the opening spring of a high-voltage switch, which is different from the prior art in that the device for reducing the resonance of the opening spring of a high-voltage switch adjusts the size of the compression spring to change the vibration frequency of the damping device, utilizes the damping device to contact the opening spring, conducts the vibration energy of the opening spring out, and does not cause resonance phenomenon or damage caused by multiple springs. The utility model has the advantages of simple structure, low cost, stronger universality, convenient installation, safety and reliability.

[0013] The utility model discloses a device for reducing the resonance of the opening spring of a high-voltage switch, which is different from the prior art in that the device for reducing the resonance of the opening spring of a high-voltage switch adjusts the size of the compression spring to change the vibration frequency of the damping device, utilizes the damping device to contact the opening spring, conducts the vibration energy of the opening spring out, and does not cause resonance phenomenon or damage caused by multiple springs. The utility model has the advantages of simple structure, low cost, stronger universality, convenient installation, safety and reliability. DRAWINGS

[0014] Figure 1 It is a structural schematic view of the device for reducing the resonance of the opening spring of a high-voltage switch.

[0015] Figure 2 It is a front view of the device for reducing the resonance of the opening spring of a high-voltage switch.

[0016] Figure 3 It is a structural schematic view of the device for reducing the resonance of the opening spring of a high-voltage switch and the high-voltage switch after assembly.

[0017] Figure 4 It is a front view of the device for reducing the resonance of the opening spring of a high-voltage switch and the high-voltage switch after assembly. Figure 3 It is a partial enlarged view of position A.

[0018] Figure 5 It is a front view of the device for reducing the resonance of the opening spring of a high-voltage switch and the high-voltage switch after assembly.

[0019] Figure 6 It is a partial enlarged view of position B. Figure 5

[0020] It is a side view of the device for reducing the resonance of the opening spring of a high-voltage switch and the high-voltage switch after assembly. Figure 7

[0021] It is a partial enlarged view of position C. Figure 8 Figure 7

[0022] ​​The marks in the figure show that: 1 - lock nut; 2 - pressure spring; 3 - damping device mounting plate; 4 - pin sleeve; 5 - shaft pin; 6 - bolt; 7 - damping device; 11 - high-voltage switch frame; 12 - opening spring crank; 13 - opening spring; 14 - insulating pull rod; 15 - insulating pull rod crank; 16 - circuit breaker main shaft. DETAILED DESCRIPTION

[0023] The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0024] Embodiment

[0025] As shown in Figure 1 and Figure 2 The utility model discloses a device for reducing the resonance of the opening spring of a high-voltage switch, which is mainly installed on the high-voltage switch and specifically comprises a damping device mounting plate 3, wherein the damping device mounting plate 3 comprises a bottom plate and side plates on both sides. In this embodiment, the damping device mounting plate 3 is an integrally formed U-shaped plate structure.

[0026] As shown in Figures 1-8 The damping device mounting plate 3 is fixedly installed on the partition plate of the high-voltage switch frame 11 and located directly behind the opening spring 13. Two bolts 6 are installed on the bottom plate of the damping device mounting plate 3. The threaded shank of the bolt 6 penetrates through the bottom plate and the partition plate, and a pressure spring 2 is sleeved on the threaded shank. A lock nut 1 is installed at the end of the bolt 6, and the two ends of the pressure spring 2 are in contact with the end face of the lock nut 1 and the partition plate, respectively. The vibration frequency of the damping device 7 can be adjusted by adjusting the size of the pressure spring 2. In this embodiment, the model of the bolt 6 and the lock nut 1 is M8.

[0027] An axle pin 5 is installed on each side plate of the damping device mounting plate 3 through a split pin, and a pin sleeve 4 is sleeved on the outer side of the axle pin 5. The pin sleeve 4 can be in contact with the opening spring 13 and gently abut against the opening spring 13. When the opening spring 13 vibrates, the vibration can be transmitted to the damping device 7 through the pin sleeve 4, thereby improving the adaptability of the damping device 7 to solve the resonance problem of the opening spring 13.

[0028] As shown in Figures 3-8 When the high-voltage switch is working, energy is stored through an energy storage mechanism, and closing is performed by rotating the closing knob on the panel. When closing, the insulating pull rod 14 acts to drive the insulating pull rod crank 15 to act, and the insulating pull rod crank 15 is welded together with the circuit breaker main shaft 16, thereby driving the circuit breaker main shaft 16 to rotate. The opening spring crank 12 is welded together with the circuit breaker main shaft 16, so that the opening spring crank 12 rotates at this time. The opening spring 13 is connected with the opening spring crank 12, and the opening spring 13 is pulled apart at this time. When opening, the opening is performed by rotating the opening knob on the panel, and the linkage mode is opposite to that of closing. Finally, the opening spring 13 is restored to its original state.

[0029] The opening spring 13 will vibrate during being pulled apart and restored, at this time, the vibration can be transmitted to the damping device 7 through the pin sleeve 4 due to the contact between the opening spring 13 and the pin sleeve 4, the vibration frequency of the damping device 7 can be adjusted by adjusting the size of the pressure spring 2, the vibration energy of the opening spring can be conducted out, and the resonance phenomenon will not be caused, and the damage caused by the multiple springs will not occur.

[0030] Compared with the device for reducing resonance of high-voltage switch opening spring, the device has the advantages of simple structure, low cost, stronger universality, convenient installation, stable vibration energy conduction of the opening spring, no resonance phenomenon, no damage caused by multiple springs, safety and reliability.

[0031] Although the utility model has been described in detail above by general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model belong to the scope of protection required by the utility model.

Claims

1. A device for reducing the resonance of a high voltage switch opening spring, characterized by: The damping device mounting plate is provided with a bolt, the bolt is provided with a lock nut, the screw rod of the bolt is sleeved with a pressure spring, the damping device mounting plate is further provided with a shaft pin, the shaft pin is sleeved with a pin sleeve outside, and the pin sleeve is in contact with the opening spring.

2. The device for reducing resonance of a high-voltage switch opening spring according to claim 1, characterized in that: The damping device mounting plate is an integrally formed U-shaped plate structure.

3. The device for reducing resonance of a high-voltage switch opening spring according to claim 1, characterized in that: The damping device mounting plate comprises a bottom plate and two side plates, the bolt is mounted on the bottom plate, and the shaft pin is mounted on the side plate.

4. The device for reducing resonance of a high-voltage switch opening spring according to claim 3, characterized in that: The shaft pin is mounted on the two side plates of the damping device mounting plate through a cotter pin.

5. The device for reducing the resonance of the opening spring of a high-voltage switch according to claim 1, characterized in that: The damping device mounting plate is fixedly mounted on the partition plate of the high-voltage switch frame and located on one side of the opening spring.

6. The device for reducing the resonance of the opening spring of a high-voltage switch according to claim 5, characterized in that: The screw rod of the bolt penetrates through the partition plate, and the two ends of the pressure spring are in contact with the end face of the lock nut and the partition plate, respectively.

7. The device for reducing the resonance of the opening spring of a high-voltage switch according to claim 1, characterized in that: The model of the bolt and the lock nut is M8.

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