Shock absorption and isolation device for high-voltage electrical equipment

Abstract

The invention belongs to the technical field of high-voltage electrical equipment, relates to a shock absorption and isolation device for high-voltage electrical equipment, and aims at solving the problems that a shock absorption device of an existing damping structure is low in reset speed, and the shock absorption effect is affected by the shock frequency. The device comprises a main body assembly, a kinetic energy consumption assembly and a friction assembly, a two-way threaded rod is adjusted by rotating a vertical rod, the distance between threaded sleeves is controlled, then the pressure and friction force between a first friction plate and a second friction plate are adjusted, and the equipment recovery speed is flexibly adjusted. Meanwhile, the kinetic energy consumption assembly utilizes air damping and compressibility between the inner sealing sleeve and the outer sealing sleeve to enhance the buffering effect. The device is simple in structure, easy to maintain, high in adaptability and capable of effectively protecting safe and stable operation of high-voltage electrical equipment in a vibration environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-voltage electrical equipment, and relates to a vibration isolation device for high-voltage electrical equipment. Background Art

[0002] High-voltage electrical equipment plays a crucial role in the power system. They are responsible for the transmission, distribution, and conversion of electrical energy and are key equipment to ensure the stable operation of the power system. However, due to the frequent occurrence of natural disasters such as earthquakes, high-voltage electrical equipment often faces the threat of vibration caused by seismic waves during operation. This vibration may not only damage the precision components inside the equipment but also cause the instability of the overall structure of the equipment, leading to the paralysis of the power system and causing huge losses to the social economy.

[0003] To address this challenge, vibration isolation devices for high-voltage electrical equipment have emerged. These devices are designed through specific technologies and structures to reduce the impact of vibration on high-voltage electrical equipment and ensure the stability and reliability of the equipment in a vibrating environment such as an earthquake. Currently, there are a wide variety of shock absorption devices on the market, and most of them use a damping structure to consume the kinetic energy generated by vibration. The damping structure absorbs and converts the vibration energy through internal damping materials or dampers to achieve the shock absorption effect.

[0004] However, the existing damping structure shock absorption devices have some problems in practical applications. First, while the damping structure consumes kinetic energy, it also slows down the reset speed of the equipment. This is because the damping materials or dampers generate certain internal losses during the process of absorbing vibration energy, causing the equipment to take longer to return to its initial state after the vibration ends. Second, when the vibration frequency is high, the damping structure may not be able to consume all the vibration energy in time, resulting in the equipment starting the second vibration before it is fully reset. This situation will exacerbate the vibration amplitude of the equipment and may even cause resonance of the equipment, causing greater damage to the equipment.

[0005] In addition, in the design and manufacturing process of the existing shock absorption devices, the shock absorption requirements of the equipment in different working states are often ignored. For example, when the high-voltage electrical equipment is operating normally, only a relatively low shock absorption effect may be required; while in extreme situations such as an earthquake, a higher shock absorption performance is needed. However, the existing shock absorption devices often cannot be flexibly adjusted according to the working state of the equipment, resulting in insufficient protection when high shock absorption performance is required and unnecessary energy consumption and costs when low shock absorption performance is needed.

[0006] In summary, the existing shock absorption devices for high-voltage electrical equipment have deficiencies in aspects such as damping structure design, reset speed control, and adaptability to working conditions. Therefore, it is of great practical significance and application value to develop a shock and vibration isolation device for high-voltage electrical equipment that can flexibly adjust shock absorption performance according to different working conditions, improve the reset speed, and adapt to various vibration environments. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide a shock and vibration isolation device for high-voltage electrical equipment to solve the existing problems.

[0008] To achieve the above object, the present invention provides the following technical solution: A shock and vibration isolation device for high-voltage electrical equipment, including a main body assembly, and a kinetic energy consumption assembly is installed inside the main body assembly;

[0009] A friction assembly is arranged inside the kinetic energy consumption assembly. The friction assembly includes a vertical rod, a bidirectional threaded rod, threaded sleeves, a third connecting rod, a first friction plate, a second friction plate, a rotating head, a bearing, and a mounting bracket;

[0010] Among them, the bidirectional threaded rod is connected to the outside of the vertical rod, and two threaded sleeves are symmetrically threadedly connected to the bidirectional threaded rod. The threaded sleeves are connected to the first friction plate through the third connecting rod; the first friction plate and the second friction plate fixed on the mounting bracket form a friction pair; the lower end of the vertical rod is connected to the rotating head and is rotatably connected to the mounting bracket through the bearing;

[0011] By rotating the vertical rod to adjust the distance between the two threaded sleeves and change the pressure between the first friction plate and the second friction plate, dynamic control of the frictional force is achieved.

[0012] Optionally, the main body assembly includes a telescopic rod, a spring, and a pushing block; the spring is sleeved outside the telescopic rod, one end of which is connected to the pushing block, and the other end is connected to the kinetic energy consumption assembly.

[0013] Optionally, the main body assembly further includes a support rod and a connecting plate; the pushing block is connected to the connecting plate through the support rod, and the connecting plate is used to install high-voltage electrical equipment.

[0014] Optionally, the kinetic energy consumption assembly includes an air box, a sealing outer sleeve, a sealing inner sleeve, a first sealing piston, and a second sealing piston;

[0015] The sealing outer sleeve and the sealing inner sleeve are coaxially installed inside the air box. The bottom of the sealing outer sleeve is connected to the first sealing piston, and the first sealing piston is connected to the pushing block through a first connecting rod; the top of the sealing inner sleeve is connected to the second sealing piston, and the second sealing piston is connected to the top of the air box through a second connecting rod.

[0016] Optionally, damping holes are provided on the air box, and a sealed sliding fit is formed between the sealed outer sleeve and the sealed inner sleeve, and buffer damping is generated by the cooperation of compressed air and the damping holes.

[0017] Optionally, the third connecting rod is an elastic telescopic structure, and its telescopic direction is perpendicular to the axis of the bidirectional threaded rod.

[0018] Optionally, the thread directions of the two ends of the bidirectional threaded rod are opposite. When the vertical rod is rotated, the two threaded sleeves move synchronously towards or away from each other.

[0019] Optionally, the rotating head is provided with an external drive interface for connecting a manual or automatic rotary drive device.

[0020] The beneficial effects of the present invention are as follows:

[0021] Flexibly adjust the friction force to adapt to different vibration frequencies: The anti-seismic and shock isolation device for high-voltage electrical equipment of the present invention adjusts the bidirectional threaded rod by rotating the vertical rod, thereby controlling the distance between the two threaded sleeves, and then changing the pressure between the first friction plate and the second friction plate to achieve flexible adjustment of the friction force. When the vibration frequency is high, the friction force can be reduced, enabling the equipment to quickly recover, facilitating the continuous shock absorption work of the equipment, and effectively improving the adaptability and shock absorption effect of the equipment in different vibration environments.

[0022] Enhance the buffer effect and improve the stability of the equipment: The sealed design between the sealed inner sleeve and the sealed outer sleeve in the kinetic energy consumption component enables the internal air to only enter and exit through the holes on the air box when the first sealing piston and the second sealing piston move. This way of air entering and exiting through the pores can achieve a certain damping effect, and at the same time, the compressibility of the air increases the buffer effect of the equipment. During the vibration process, this design can effectively absorb and convert the vibration energy, reduce the impact on the high-voltage electrical equipment, and improve the stability and reliability of the equipment.

[0023] Optimize the reset speed and improve the shock absorption efficiency: Traditional damping structure shock isolation devices slow down the reset speed of the equipment while consuming kinetic energy. However, the present invention can reduce the friction force when the vibration frequency is high by flexibly adjusting the friction force, thereby accelerating the reset speed of the equipment. In this way, the equipment can quickly reset after shock absorption compression and perform the next buffer, effectively improving the shock absorption efficiency and protecting the high-voltage electrical equipment from continuous vibration damage.

[0024] Simple structure and easy to maintain: The anti-seismic and vibration isolation device for high-voltage electrical equipment of the present invention has a relatively simple structure, and the connection and cooperation relationships between components are clear. This design not only facilitates the installation and debugging of the equipment but also reduces subsequent maintenance costs. At the same time, due to the strong independence between components, once a component fails, it can be easily replaced or repaired, improving the overall reliability and service life of the equipment.

[0025] Strong adaptability and wide application range: The anti-seismic and vibration isolation device for high-voltage electrical equipment of the present invention can be customized and adjusted according to the specific requirements and working environments of different high-voltage electrical equipment. Whether it is a large-scale substation or a small-scale power distribution room, whether it is a land environment or an offshore platform, the present invention can provide effective shock absorption protection. This wide adaptability makes the present invention have broad application prospects and market potential in the field of high-voltage electrical equipment shock absorption.

[0026] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. Brief Description of the Drawings

[0027] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail preferably with reference to the accompanying drawings, where:

[0028] Figure 1 It is a front view structural schematic diagram of the present invention.

[0029] Figure 2 It is a sectional enlarged structural schematic diagram of the kinetic energy consumption component of the present invention.

[0030] Figure 3 For the present invention Figure 2 The enlarged structural schematic diagram at position A in it.

[0031] Reference numerals: 1, main body component; 101, telescopic rod; 102, spring; 103, push block; 104, support rod; 105, connecting plate; 2, kinetic energy consumption component; 201, air box; 202, sealing outer sleeve; 203, first sealing piston; 204, first connecting rod; 205, sealing inner sleeve; 206, second sealing piston; 207, second connecting rod; 3, friction component; 301, vertical rod; 302, bidirectional threaded rod; 303, threaded sleeve; 304, third connecting rod; 305, first friction plate; 306, second friction plate; 307, rotating head; 308, bearing; 309, mounting bracket. Detailed Description of the Specific Embodiment

[0032] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0033] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as limitations on the present invention; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0034] In the drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as limitations on the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] Please refer to Figures 1 to 3 , which is a shock isolation device for high-voltage electrical equipment, including a main body assembly 1. A kinetic energy consumption assembly 2 is arranged inside the main body assembly 1, and a friction assembly 3 is installed inside the kinetic energy consumption assembly 2. The friction assembly 3 includes a vertical rod 301, a bidirectional threaded rod 302, a threaded sleeve 303, a third connecting rod 304, a first friction plate 305, a second friction plate 306, a rotating head 307, a bearing 308 and a mounting bracket 309. A bidirectional threaded rod 302 is connected to the outside of the vertical rod 301, a threaded sleeve 303 is connected to the outside of the bidirectional threaded rod 302, and third connecting rods 304 are connected to the left and right sides of the threaded sleeve 303. One end of the third connecting rod 304 away from the threaded sleeve 303 is connected to a first friction plate 305, and a second friction plate 306 is arranged on the side of the first friction plate 305 away from the third connecting rod 304. A rotating head 307 is connected to the lower end of the vertical rod 301, and bearings 308 are connected to the outside of the upper and lower ends of the vertical rod 301. A mounting bracket 309 is connected to the outside of the bearing 308;

[0036] The vertical rod 301 can be rotationally adjusted according to the working state, so as to control the distance between the two threaded sleeves 303, control the pressure between the first friction plate 305 and the second friction plate 306, and thus control the frictional force between the first friction plate 305 and the second friction plate 306, and control the restoration speed of the device. Thus, when the vibration frequency is relatively fast, the frictional force can be reduced to achieve the rapid restoration of the device, so as to facilitate the continuous shock absorption work of the device. The third connecting rod 304 has an elastic telescopic function. Even if the threaded sleeve 303 moves, it can ensure the contact between the first friction plate 305 and the second friction plate 306. What changes is only the magnitude of the pressure between the first friction plate 305 and the second friction plate 306.

[0037] As Figure 1 shown, the main body assembly 1 includes a telescopic rod 101, a spring 102 and a pushing block 103. A spring 102 is installed outside the telescopic rod 101. One side of the telescopic rod 101 away from the kinetic energy consumption assembly 2 is connected to a pushing block 103. The main body assembly 1 further includes a support rod 104 and a connecting plate 105. One end of the pushing block 103 away from the spring 102 is connected to a support rod 104, and one end of the support rod 104 away from the pushing block 103 is connected to a connecting plate 105;

[0038] Relying on the elastic structure formed by the pushing block 103, the spring 102 and the telescopic rod 101 between the kinetic energy consumption assembly 2, an elastic traction effect is exerted on the support rod 104, so that the device has an elastic shock absorption function.

[0039] As Figure 2 shown, the kinetic energy consumption assembly 2 includes an air box 201, a sealing outer sleeve 202 and a sealing inner sleeve 205. A sealing outer sleeve 202 is installed inside the air box 201, and a sealing inner sleeve 205 is arranged inside the sealing outer sleeve 202. The kinetic energy consumption assembly 2 further includes a first sealing piston 203 and a first connecting rod 204. The lower end of the sealing outer sleeve 202 is connected to a first sealing piston 203, and the lower end of the first sealing piston 203 is connected to a first connecting rod 204. The kinetic energy consumption assembly 2 further includes a second sealing piston 206 and a second connecting rod 207. The upper end of the sealing inner sleeve 205 is connected to a second sealing piston 206, and the upper end of the second sealing piston 206 is connected to a second connecting rod 207;

[0040] Through the sealing between the sealing inner sleeve 205 and the sealing outer sleeve 202, when the first sealing piston 203 and the second sealing piston 206 move, the internal air can only enter and exit through the holes on the air box 201. The way of entering and exiting through the pores can achieve a certain damping effect. At the same time, air has compressibility. In this way, even if the air cannot be discharged in time, the compressibility of the air can be utilized to increase the buffering effect of the device.

[0041] Example 1

[0042] During use, the device is installed at the bottom of the high-voltage electrical equipment. The rubber pad installed on the connecting plate 105 plays an isolation effect. When the high-voltage electrical equipment is in a normal working state, the device can rely on the elastic structure formed by the pushing block 103, the spring 102 and the telescopic rod 101 with the kinetic energy consumption component 2 to exert an elastic traction effect on the support rod 104, so that the device has an elastic shock-absorbing function. When the device performs shock-absorbing work, relying on the lifting structure formed by the second sealing piston 206 and the air box 201, and the lifting structure formed by the first sealing piston 203 and the air box 201, it can compress and lift the air inside the air box 201 during vibration, and perform exhaust and intake work through the small air holes on the air box 201. Through the interference of the air pressure change, a certain damping effect is formed to prevent the spring 102 from vibrating continuously and affecting the shock-absorbing effect. A sliding structure is formed between the inner sealing sleeve 205 and the outer sealing sleeve 202 and is sealed, which can prevent air from leaking out here and affecting the damping effect.

[0043] Embodiment 2

[0044] When the vibration frequency of the high-voltage electrical equipment is relatively fast, at this time, the vertical rod 301 can be rotated manually or by an external drive structure, so as to drive the bidirectional threaded rod 302 to rotate. Through the threaded connection between the bidirectional threaded rod 302 and the threaded sleeve 303, the two threaded sleeves 303 move away from each other, so that the thrust of the third connecting rod 304 on the first friction plate 305 is reduced. In this way, the friction between the first friction plate 305 and the second friction plate 306 can be reduced, thereby reducing the damping effect of the device, facilitating the rapid reset of the device after shock-absorbing compression, so that the device can quickly perform buffering, and enabling the device to better buffer high-frequency vibrations.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A shock isolation device for high-voltage electrical equipment, characterized in that: It includes a main body component, and a kinetic energy consumption component is installed inside the main body component; A friction component is arranged inside the kinetic energy consumption component. The friction component includes a vertical rod, a bidirectional threaded rod, threaded sleeves, a third connecting rod, a first friction plate, a second friction plate, a rotating head, a bearing and a mounting bracket; Among them, the bidirectional threaded rod is connected to the outside of the vertical rod, and two threaded sleeves are symmetrically and threadedly connected to the bidirectional threaded rod. The threaded sleeves are connected to the first friction plate through the third connecting rod; the first friction plate and the second friction plate fixed on the mounting bracket form a friction pair; the lower end of the vertical rod is connected to the rotating head and is rotatably connected to the mounting bracket through a bearing; By rotating the vertical rod to adjust the distance between the two threaded sleeves and change the pressure between the first friction plate and the second friction plate, dynamic control of the frictional force is achieved.

2. The seismic isolation and reduction device for high-voltage electrical equipment according to claim 1, characterized in that: The main body component includes a telescopic rod, a spring and a pushing block; the spring is sleeved outside the telescopic rod, one end of the spring is connected to the pushing block, and the other end is connected to the kinetic energy consumption component.

3. The seismic isolation and reduction device for high-voltage electrical equipment according to claim 2, characterized in that: The main body component further includes a support rod and a connecting plate; the pushing block is connected to the connecting plate through the support rod, and the connecting plate is used for installing high-voltage electrical equipment.

4. A vibration isolation and reduction device for high-voltage electrical equipment according to claim 1, characterized in that: The kinetic energy consumption component includes an air box, a sealing outer sleeve, a sealing inner sleeve, a first sealing piston and a second sealing piston; The sealing outer sleeve and the sealing inner sleeve are coaxially installed inside the air box. The bottom of the sealing outer sleeve is connected to the first sealing piston, and the first sealing piston is connected to the pushing block through a first connecting rod; the top of the sealing inner sleeve is connected to the second sealing piston, and the second sealing piston is connected to the top of the air box through a second connecting rod.

5. The seismic isolation and vibration reduction device for high-voltage electrical equipment according to claim 4, wherein: The air box is provided with damping holes, and a sealed sliding fit is formed between the sealing outer sleeve and the sealing inner sleeve, and buffer damping is generated by the cooperation of compressed air and the damping holes.

6. The seismic isolation and reduction device for high-voltage electrical equipment according to claim 1, characterized in that: The third connecting rod is an elastic telescopic structure, and its telescopic direction is perpendicular to the axis of the bidirectional threaded rod.

7. A vibration isolation and reduction device for high-voltage electrical equipment according to claim 1, characterized in that: The thread directions at both ends of the bidirectional threaded rod are opposite. When the vertical rod is rotated, the two threaded sleeves move synchronously towards or away from each other.

8. The shock isolation device for high-voltage electrical equipment according to claim 1, characterized in that: The rotating head is provided with an external drive interface for connecting a manual or automatic rotation drive device.

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