Friction damping vibration double-control damping device for electrical equipment

Abstract

The invention relates to the technical field of electrical equipment damping devices, and discloses a friction damping vibration double-control damping device for electrical equipment, and the friction damping vibration double-control damping device is characterized in that a friction damping buffer assembly is supported in the middle of the upper end of a base by adopting a buffer adjusting assembly; limiting connecting pieces arranged on the friction damping buffering assembly at equal intervals are connected to the bottom of the mounting base. A middle buffering supporting piece in the middle of the friction damping buffering assembly is supported at the bottom of the mounting base. A tensioning friction piece at the bottom of the friction damping buffering assembly is connected into a sliding base on the base in a sliding mode, the buffering adjusting assembly communicates with the tensioning friction piece, and the buffering adjusting assembly is used for adjusting friction damping between the bottom of the friction damping buffering assembly and the sliding base through the tensioning friction piece. Side edge buffering supporting pieces supported at the bottom of the mounting base are arranged at the corners of the upper end of the base. Through the linkage design of the buffer adjusting assembly and the tensioning friction piece, a self-adaptive damping adjusting system is constructed, and all the structures achieve the function cooperation of'shock-vibration double control 'through precise connection and driving design.

Description

Technical Field

[0001] This invention relates to the field of vibration damping devices for electrical equipment, specifically a friction-damping vibration damping dual-control device for electrical equipment. Background Technology

[0002] Reactors, transformers, and other electrical equipment are core and critical components of the power system, and their operational stability directly determines the reliability of the power grid. These devices face dual vibration excitation throughout their entire lifecycle: first, high-frequency electromagnetic vibrations caused by the magnetostriction of the iron core and the electromagnetic forces of the windings during normal operation; and second, low-frequency, high-amplitude impact vibrations caused by earthquakes, transportation shocks, and other scenarios. The coupling effect of these two types of vibrations can easily lead to fatigue damage to equipment components, decreased insulation performance, and even serious failures, severely impacting the safe operation of the power grid.

[0003] The current field of vibration reduction for electrical equipment faces significant technical bottlenecks: existing vibration reduction devices are mostly single-function designs, either using fixed damping rubber buffers only for high-frequency electromagnetic vibrations or rigid seismic-resistant structures only for seismic impacts, making it difficult to achieve coordinated "vibration-earthquake dual control" protection. Fixed damping structures, in particular, cannot adapt to wide-frequency vibration characteristics, providing insufficient attenuation for high-frequency vibrations and insufficient damping force for low-frequency impacts, easily leading to cumulative vibration damage. Some devices attempting dual-frequency vibration reduction employ complex electronic control adjustment structures, which are not only costly and difficult to maintain, but also have slow response times, making it difficult to cope with the dynamic changes of instantaneous seismic impacts. Therefore, we introduce a friction-damped vibration-earthquake dual control vibration reduction device for electrical equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a friction-damped vibration reduction device for electrical equipment with dual control, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A friction damping vibration control device for electrical equipment includes a base and a mounting bracket for mounting the electrical equipment. The upper middle part of the base is supported by a buffer adjustment component for a friction damping buffer component. The limiting connectors, which are equally spaced on the friction damping buffer assembly, are connected to the bottom of the mounting base. The intermediate buffer support in the middle of the friction damping buffer assembly is supported at the bottom of the mounting base; The tensioning friction element at the bottom of the friction damping buffer assembly slides into the slide on the base. The buffer adjustment assembly is connected to the tensioning friction element and is used to adjust the friction damping between the bottom of the friction damping buffer assembly and the slide through the tensioning friction element. The upper corner of the base is provided with a side buffer support that supports the bottom of the mounting base.

[0006] Preferably, the buffer adjustment assembly includes a buffer oil cylinder fixed at the middle of the upper end of the base, a piston disposed inside the buffer oil cylinder, a piston rod at the middle of the upper end of the piston, a support plate fixed after the piston rod extends through and out of the buffer oil cylinder, and rubber wheels evenly distributed on the support plate.

[0007] Preferably, the intermediate buffer support includes a lifting seat, a first limiting frame at the upper end of the lifting seat, and an intermediate buffer rubber pad embedded in the first limiting frame at the bottom, with the rubber wheel supported at the bottom of the lifting seat.

[0008] Preferably, the limiting connector includes a connecting arm that is movably connected between the lifting seat and the corresponding tensioning friction element, and an H-shaped frame that is movably connected between the middle of the connecting arm and the bottom of the mounting seat. The connecting arm has a bottom connecting hole in the middle for inserting the bottom rubber tube, and the mounting base has several sets of connecting seats at equal intervals at the bottom, with a top connecting hole on the connecting seat for inserting the top rubber tube. The top pin at the upper end of the H-shaped frame extends through the top rubber cylinder, and the bottom pin at the lower end of the H-shaped frame extends through the bottom rubber cylinder.

[0009] Preferably, the tensioning friction element includes a T-shaped seat slidably connected in the slide, a U-shaped elastic tensioning seat disposed at the outer end of the bottom of the T-shaped seat, and an expansion bladder located inside the U-shaped elastic tensioning seat; The expansion bladder is connected to the bottom of the corresponding buffer oil cylinder by a hose; The outer wall of the U-shaped elastic tensioning seat is provided with a friction inclined surface, which is in close contact with the triangular friction seat on the inner wall of the slide.

[0010] Preferably, the side wall of the lifting seat is provided with a top connecting ear, the upper end of the connecting arm is movably connected to the corresponding top connecting ear by a top pin, the bottom inner end of the T-shaped seat is provided with a bottom connecting ear, and the lower end of the connecting arm is movably connected to the corresponding bottom connecting ear by a bottom pin.

[0011] Preferably, the side buffer support includes a support seat at the upper corner of the base, a second limiting frame at the upper end of the support seat, and a side buffer rubber pad embedded in the second limiting frame at the bottom.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention constructs an adaptive damping adjustment system through the linkage design of the buffer adjustment component and the tensioning friction component: During low-frequency earthquake impact, the buffer oil cylinder drives the expansion bladder to expand through the hose, increasing the damping force of the friction inclined surface and the triangular friction seat in real time, and efficiently attenuating the impact energy; During high-frequency operation vibration, the basic oil pressure is maintained to ensure stable friction energy dissipation, and at the same time, the elastic buffering of the top rubber cylinder and the bottom rubber cylinder achieves precise suppression of dual-frequency vibration, solving the problem of vibration coupling damage and significantly improving the operational stability and service life of electrical equipment.

[0013] This invention employs a purely mechanical linkage structure, achieving instantaneous adaptive adjustment of damping force through mechanical transmission and hydraulic transmission via the lifting seat, piston rod, and expansion bladder. Its response speed during earthquake impacts is several times faster than that of electronic control devices, requiring no additional power source. Simultaneously, the simplified mechanical structure reduces production and maintenance costs, the rolling contact of the rubber wheels reduces component wear, and the first and second limit frames prevent excessive deformation and failure of the buffer rubber pads. Compared to existing devices, reliability is significantly improved, making it suitable for long-term outdoor operation.

[0014] This invention achieves precise vibration control through multi-component collaborative optimization: the multi-node movable connection of the connecting arm, a multi-degree-of-freedom linkage structure, can accurately transmit vibration energy and compensate for displacement; the design of the friction ramp increases the contact area, improving energy dissipation efficiency compared to planar friction, and controlling vibration attenuation error within a reasonable range, breaking through the limitations of empirical design. Simultaneously, the modular structure can be adapted to different equipment such as reactors, transformers, and switchgear by adjusting parameters such as the hardness of the intermediate buffer rubber pad and the roughness of the friction ramp.

[0015] This invention employs a full-range support structure with intermediate and side buffer supports. The intermediate buffer rubber pad bears the vertical load and absorbs mid-to-high frequency vibrations, while the side buffer rubber pads limit horizontal displacement and torsional vibrations, forming all-around protection. During earthquake impacts, it can effectively prevent equipment from colliding with surrounding structures and the device from tipping over, solving the pain points of existing devices' unidirectional buffering and insufficient overall stability. It is particularly suitable for power engineering in earthquake-prone areas. Through precise connection and drive design, the various structures achieve the functional synergy of "earthquake-vibration dual control". Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of the overall assembly of the present invention; Figure 2 A three-dimensional structural diagram of the support base, slide block, buffer oil cylinder and base of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the three-dimensional structure from another perspective; Figure 4 For the present invention Figure 3A schematic diagram of the cross-sectional structure; Figure 5 This is a three-dimensional structural schematic diagram of the friction damping buffer assembly of the present invention; Figure 6 This is a three-dimensional structural diagram of the connection between the lifting seat and the connecting arm of the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the tensioning friction component of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the three-dimensional structure from another perspective; Figure 9 This is an exploded structural diagram of the assembly of the top rubber tube, H-shaped frame, connecting arm and bottom rubber tube of the present invention; Figure 10 For the present invention Figure 9 A schematic diagram of the assembled 3D structure; Figure 11 This is a three-dimensional structural diagram of the connection between the tensioning friction element, connecting arm, H-shaped frame and lifting seat of the present invention; Figure 12 A three-dimensional structural diagram of the mounting base and connecting base of the present invention; Figure 13 This is a three-dimensional structural diagram of the connection between the mounting base and the friction damping buffer assembly of the present invention; Figure 14 For the present invention Figure 13 A schematic diagram of the cross-sectional structure; Figure 15 This is a three-dimensional structural diagram of the assembled support base, slide, buffer oil cylinder, base, and friction damping buffer assembly of the present invention. Figure 16 This is a schematic diagram of the three-dimensional structure of the entire assembled invention; Figure 17 For the present invention Figure 16 A schematic diagram of the three-dimensional structure from another perspective; Figure 18 For the present invention Figure 17 A cross-sectional structural diagram.

[0017] In the diagram: 1. Mounting base; 101. Connecting base; 102. Top connecting hole; 2. Friction damping buffer assembly; 201. Intermediate buffer rubber pad; 202. Lifting base; 203. Connecting arm; 204. H-shaped frame; 205. T-shaped base; 206. First limiting frame; 207. Top connecting ear; 208. Top pin; 209. Bottom connecting hole; 210. Bottom pin; 211. Flexible hose; 212. Bottom connecting ear 213. U-shaped elastic tension seat; 214. Friction inclined surface; 215. Expansion bladder; 216. Top rubber cylinder; 217. Bottom rubber cylinder; 218. Bottom pin; 219. Top pin; 3. Base; 4. Support seat; 5. Slide seat; 6. Second limit frame; 7. Side buffer rubber pad; 8. Triangular friction seat; 9. Buffer oil cylinder; 10. Support plate; 11. Rubber wheel; 12. Piston; 13. Piston rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Please see Figures 1-18 The present invention provides a technical solution: A friction damping vibration control device for electrical equipment includes a base 3 and a mounting seat 1 for installing electrical equipment. The upper middle part of the base 3 is supported by a buffer adjustment component and a friction damping buffer component 2. The buffer adjustment assembly includes a buffer oil cylinder 9 fixed at the middle of the upper end of the base 3, a piston 12 disposed inside the buffer oil cylinder 9, a piston rod 13 at the middle of the upper end of the piston 12, a support plate 10 fixed after the piston rod 13 extends through and out of the buffer oil cylinder 9, and rubber wheels 11 evenly distributed on the support plate 10.

[0020] The friction damping buffer assembly 2 is connected to the bottom of the mounting base 1 by the equally spaced limiting connectors. The limiting connectors include a connecting arm 203 that is movably connected between the lifting base 202 and the corresponding tensioning friction component, and an H-shaped frame 204 that is movably connected between the middle of the connecting arm 203 and the bottom of the mounting base 1. The middle of the connecting arm 203 is provided with a bottom connecting hole 209 for inserting the bottom rubber cylinder 217. Several sets of connecting seats 101 are equally spaced at the bottom of the mounting base 1. The connecting seat 101 is provided with a top connecting hole 102 for inserting the top rubber cylinder 216. The top pin 219 at the upper end of the H-shaped frame 204 extends through the top rubber cylinder 216, and the bottom pin 218 at the lower end of the H-shaped frame 204 extends through the bottom rubber cylinder 217.

[0021] The intermediate buffer support in the middle of the friction damping buffer assembly 2 is supported at the bottom of the mounting base 1. The intermediate buffer support includes a lifting base 202, a first limiting frame 206 set at the upper end of the lifting base 202, and an intermediate buffer rubber pad 201 embedded in the first limiting frame 206 at the bottom. The rubber wheel 11 is supported at the bottom of the lifting base 202.

[0022] The tensioning friction component at the bottom of the friction damping buffer assembly 2 is slidably connected to the slide seat 5 on the base 3. The tensioning friction component includes a T-shaped seat 205 slidably connected to the slide seat 5, a U-shaped elastic tensioning seat 213 provided at the outer end of the bottom of the T-shaped seat 205, and an expansion bladder 215 located inside the U-shaped elastic tensioning seat 213. The expansion bladder 215 is connected to the bottom of the corresponding buffer oil cylinder 9 by a hose 211. The outer wall of the U-shaped elastic tensioning seat 213 is provided with a friction inclined surface 214, and the friction inclined surface 214 is closely attached to the triangular friction seat 8 on the inner wall of the slide seat 5.

[0023] The side wall of the lifting seat 202 is provided with a top connecting ear 207. The upper end of the connecting arm 203 is movably connected to the corresponding top connecting ear 207 by a top pin 208. The bottom inner end of the T-shaped seat 205 is provided with a bottom connecting ear 212. The lower end of the connecting arm 203 is movably connected to the corresponding bottom connecting ear 212 by a bottom pin 210.

[0024] The buffer adjustment component is connected to the tensioning friction component. The buffer adjustment component is used to adjust the friction damping of the bottom of the friction damping buffer component 2 and the slide 5 through the tensioning friction component. The upper corner of the base 3 is provided with a side buffer support component that supports the bottom of the mounting base 1.

[0025] The side buffer support includes a support seat 4 at the upper corner of the base 3, a second limiting frame 6 at the upper end of the support seat 4, and a side buffer rubber pad 7 embedded in the second limiting frame 6 at the bottom.

[0026] Through precise connection and drive design, the various structures of this invention achieve functional synergy of "vibration-vibration dual control," with the following specific advantages: (a) Connectivity between the buffer adjustment component and the tensioning friction component: adaptive damping adjustment to adapt to dual-frequency vibration.

[0027] The buffer oil cylinder 9 is connected to the expansion bladder 215 through the hose 211, forming a linkage mechanism of "mechanical impact - oil transmission - friction enhancement".

[0028] The advantages are: First, for the instantaneous impact of an earthquake, the impact force is converted into oil pressure through the mechanical transmission of piston 12 and piston rod 13, which quickly drives the expansion bladder 215 to expand, increasing the friction damping force in real time and efficiently attenuating low-frequency large-amplitude vibrations. Secondly, to address high-frequency, small-amplitude operating vibrations, the oil pressure is kept stable and the friction damping force is kept constant to avoid excessive damping that could amplify equipment vibrations, while ensuring the continuous consumption of vibration energy. Third, the rolling contact between the rubber wheel 11 and the lifting seat 202 reduces the frictional loss between the buffer adjustment component and the intermediate buffer support, ensuring the smooth transmission of power during earthquake impact and improving the response speed of the device.

[0029] (ii) Multi-node movable connection of limit connector: taking into account both displacement compensation and vibration transmission, to achieve coordinated vibration reduction.

[0030] The connecting arm 203 is movably connected to the lifting seat 202 via the top pin 208, and movably connected to the T-shaped seat 205 via the bottom pin 210. At the same time, it is movably connected to the connecting seat 101 of the mounting seat 1 via the H-shaped frame 204, forming a multi-degree-of-freedom linkage structure.

[0031] The advantages are: firstly, it can compensate for the multi-directional displacement of the mounting base 1 during earthquake impact, avoiding damage caused by rigid structural collisions; Secondly, the vibration of the mounting base 1 is efficiently transmitted to the T-shaped base 205, ensuring that the friction damping component can fully exert its energy dissipation function and achieve precise transmission of "vibration-energy dissipation". Third, the top rubber cylinder 216 and the bottom rubber cylinder 217 are embedded in the corresponding connection holes, forming an elastic buffer at the movable connection, which not only attenuates high-frequency vibration, but also avoids the connection node from being damaged by vibration fatigue, thus improving the service life of the device.

[0032] (iii) Coordinated support of intermediate buffer support and side buffer support: full-area buffering to improve stability.

[0033] The intermediate buffer support (lifting seat 202, first limiting frame 206, intermediate buffer rubber pad 201) and the side buffer support (support seat 4, second limiting frame 6, side buffer rubber pad 7) correspond to the middle and corner of the mounting seat 1 respectively, forming a full-area support structure.

[0034] The advantages are: First, the intermediate buffer support bears the main vertical load, absorbs medium and high frequency vibrations through the elastic deformation of the intermediate buffer rubber pad 201, and provides stable support for the lifting seat 202, ensuring the normal operation of the buffer adjustment component. Secondly, the side buffer support serves as an auxiliary buffer structure, limiting the horizontal displacement and torsional vibration of the mounting base 1, preventing the device from tipping over during an earthquake, and improving overall stability. Third, the first limiting frame 206 and the second limiting frame 6 respectively limit the middle and side buffer rubber pads to prevent the rubber pads from failing due to excessive deformation, while ensuring the uniform transmission of buffering force.

[0035] (iv) The inclined surface of the tensioning friction component and the slide block: high efficiency energy consumption, suitable for vibration under multiple working conditions.

[0036] The U-shaped elastic tensioning seat 213 at the bottom of the T-shaped seat 205 and the triangular friction seat 8 of the slide 5 are engaged by the friction inclined surface 214, combined with the tensioning effect of the expansion bladder 215.

[0037] The advantages are: firstly, the inclined surface increases the friction contact area, which consumes more vibration energy compared to flat friction, thus improving vibration reduction efficiency; Secondly, the U-shaped elastic structure of the U-shaped elastic tensioning seat 213 has a certain elastic recovery capability, which can adapt to the small sliding of the T-shaped seat 205. At the same time, under the action of the expansion bladder 215, it always sticks tightly to the inner wall of the triangular friction seat 8 to ensure the stability of friction damping. Third, the inclined surface (inner wall of triangular friction seat 8) of the triangular friction seat 8 can guide the sliding direction of the U-shaped elastic tension seat, avoid jamming, and ensure that the device can work stably under earthquake and operational vibration conditions, and achieve continuous suppression of multi-frequency vibration.

[0038] (v) Modular connection of the overall structure: easy to install and maintain, and compatible with a variety of electrical equipment.

[0039] Each component of the device adopts a modular design. For example, the buffer adjustment component, friction damping buffer component, and side buffer support are all assembled independently and then connected to the base 3 and mounting seat 1.

[0040] The advantages are: firstly, it reduces the difficulty of production and assembly, making it easier for mass production; Secondly, damaged components (such as rubber pads and expansion bladders) can be replaced individually during later maintenance, without the need to disassemble the entire device, thus reducing maintenance costs and downtime. Third, by adjusting parameters such as the hardness of the buffer rubber pads (side buffer rubber pad 7 and middle buffer rubber pad 201) and the roughness of the friction inclined surface 214, the device can be adapted to the vibration characteristics of different types of electrical equipment such as reactors, transformers, and switch cabinets, thus expanding the applicability of the device.

[0041] Specifically, when using it: This device, based on adaptive adjustment of friction damping and a multi-component collaborative buffering mechanism, aims to suppress vibrations across the entire frequency band of electrical equipment (such as reactors) under the dual excitation of low-frequency seismic waves (earthquakes) and high-frequency electromagnetic vibrations (vibrations). The specific working process is divided into the following two categories according to the excitation type: (I) Control principle of seismic excitation (earthquake) When an earthquake occurs, low-frequency, high-amplitude seismic waves act on the base 3, causing instantaneous impact vibrations to the entire structure. The device rapidly attenuates the seismic energy through a dual mechanism of "buffering energy absorption + frictional energy dissipation." Initial buffering stage: After the seismic impact force is transmitted to the base 3, on the one hand, the side buffer support (including support seat 4, second limit frame 6, and side buffer rubber pad 7) at the corner of the base 3 first contacts the bottom of the mounting seat 1. The elastic deformation of the side buffer rubber pad 7 absorbs part of the impact energy, restricts the instantaneous displacement of the mounting seat 1, and avoids electrical equipment from colliding with the surrounding structure.

[0042] On the other hand, the impact force of the mounting base 1 is transmitted to the connecting arm 203 through the connecting base 101 and the H-shaped frame 204, driving the connecting arm 203 to rotate around the top pin 208 (connected to the top connecting ear 207 of the lifting base 202) and the bottom pin 210 (connected to the bottom connecting ear 212 of the T-shaped base 205), causing the T-shaped base 205 to slide in the slide 5.

[0043] Friction energy dissipation stage: When the T-shaped seat 205 slides, the U-shaped elastic tension seat 213 at its bottom and the triangular friction seat 8 on the inner wall of the slide 5 generate relative friction through the friction inclined surface 214, which consumes the seismic vibration energy.

[0044] At the same time, the instantaneous impact caused by the earthquake causes the mounting base 1 to press down in a straight line against the intermediate buffer support (including the lifting base 202, the first limit frame 206, and the intermediate buffer rubber pad 201). The lifting base 202 presses down on the rubber wheel 11 of the buffer adjustment component, which in turn pushes the support plate 10 and the piston rod 13 to drive the piston 12 to move down in the buffer oil cylinder 9, and presses the oil in the cylinder into the expansion bladder 215 through the hose 211.

[0045] After the expansion bladder 215 expands, it expands the U-shaped elastic tension seat 213, increases the normal pressure between the friction inclined surface 214 and the triangular friction seat 8, enhances the friction damping force, and adaptively enhances the attenuation effect on low-frequency seismic waves.

[0046] Reset and stabilization phase: After the earthquake impact weakens, the elastic restoring force of the intermediate buffer rubber pad 201 and the side buffer rubber pad 7 pushes the mounting base 1 to reset, the oil in the buffer oil cylinder 9 flows back, the expansion bladder 215 contracts, and the friction damping force returns to the initial state, ensuring the stability of the device.

[0047] (II) Control principle of operational vibration: When electrical equipment (such as reactors) is operating normally, high-frequency electromagnetic vibration continuously acts on mounting base 1. The device attenuates the high-frequency vibration through an "elastic buffer + stable friction" mechanism to avoid fatigue damage. Elastic buffer attenuation: After the high-frequency electromagnetic vibration is transmitted to the mounting base 1, it is initially buffered by the top rubber cylinder 216 (which cooperates with the top pin 219 of the H-shaped frame 204) in the connecting base 101 and the bottom rubber cylinder 217 (which cooperates with the bottom pin 218 of the H-shaped frame 204) in the bottom connecting hole 209 of the connecting arm 203.

[0048] The elastic deformation of the rubber cylinders (top rubber cylinder 216 and bottom rubber cylinder 217) can effectively absorb high-frequency vibration energy, reduce vibration transmission efficiency, and at the same time attenuate the vibration amplitude through the damping characteristics of rubber.

[0049] Stable friction and vibration suppression: High-frequency vibration causes the mounting base 1 to sway slightly, which in turn causes the H-shaped frame 204 and the connecting arm 203 to swing slightly, thereby driving the T-shaped base 205 to slide slightly at high frequency within the slide base 5.

[0050] At this time, the buffer adjustment component maintains the base oil pressure, so that the expansion bladder 215 maintains a certain degree of expansion, ensuring that the U-shaped elastic tension seat 213 and the triangular friction seat 8 always maintain stable contact, and consumes high-frequency vibration energy through continuous friction, avoiding vibration accumulation that could lead to fatigue damage to electrical equipment.

[0051] Meanwhile, the elastic support of the middle buffer rubber pad 201 and the side buffer rubber pad 7 can suppress the high-frequency resonance of the mounting base 1, further improving the vibration reduction effect.

[0052] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A friction-damped vibration damping dual-control vibration reduction device for electrical equipment, comprising a base and a mounting bracket for mounting the electrical equipment, characterized in that: The upper middle part of the base is supported by a friction damping buffer component using a buffer adjustment component. The limiting connectors, which are equally spaced on the friction damping buffer assembly, are connected to the bottom of the mounting base. The intermediate buffer support in the middle of the friction damping buffer assembly is supported at the bottom of the mounting base; The tensioning friction element at the bottom of the friction damping buffer assembly slides into the slide on the base. The buffer adjustment assembly is connected to the tensioning friction element and is used to adjust the friction damping between the bottom of the friction damping buffer assembly and the slide through the tensioning friction element. The upper corner of the base is provided with a side buffer support that supports the bottom of the mounting base.

2. The friction-damped vibration damping dual-control vibration reduction device for electrical equipment according to claim 1, characterized in that: The buffer adjustment assembly includes a buffer oil cylinder fixed at the upper middle part of the base, a piston disposed inside the buffer oil cylinder, a piston rod at the upper middle part of the piston, a support plate fixed after the piston rod extends through and out of the buffer oil cylinder, and rubber wheels evenly distributed on the support plate.

3. The friction-damped vibration damping dual-control vibration reduction device for electrical equipment according to claim 2, characterized in that: The intermediate buffer support includes a lifting seat, a first limiting frame at the upper end of the lifting seat, and an intermediate buffer rubber pad embedded in the first limiting frame at the bottom. The rubber wheel is supported at the bottom of the lifting seat.

4. The friction-damped vibration damping dual-control vibration reduction device for electrical equipment according to claim 3, characterized in that: The limiting connector includes a connecting arm that is movably connected between the lifting seat and the corresponding tensioning friction component, and an H-shaped frame that is movably connected between the middle of the connecting arm and the bottom of the mounting seat. The connecting arm has a bottom connecting hole in the middle for inserting the bottom rubber tube, and the mounting base has several sets of connecting seats at equal intervals at the bottom, with a top connecting hole on the connecting seat for inserting the top rubber tube. The top pin at the upper end of the H-shaped frame extends through the top rubber cylinder, and the bottom pin at the lower end of the H-shaped frame extends through the bottom rubber cylinder.

5. A friction-damped vibration damping dual-control vibration reduction device for electrical equipment according to claim 4, characterized in that: The tensioning friction element includes a T-shaped seat that slides within the slide block, a U-shaped elastic tensioning seat located at the outer bottom end of the T-shaped seat, and an expansion bladder located inside the U-shaped elastic tensioning seat. The expansion bladder is connected to the bottom of the corresponding buffer oil cylinder by a hose; The outer wall of the U-shaped elastic tensioning seat is provided with a friction inclined surface, which is in close contact with the triangular friction seat on the inner wall of the slide.

6. A friction-damped vibration damping dual-control vibration reduction device for electrical equipment according to claim 5, characterized in that: The lifting seat has a top connecting ear on its side wall, and the upper end of the connecting arm is movably connected to the corresponding top connecting ear by a top pin. The bottom inner end of the T-shaped seat has a bottom connecting ear, and the lower end of the connecting arm is movably connected to the corresponding bottom connecting ear by a bottom pin.

7. A friction-damped vibration damping dual-control vibration reduction device for electrical equipment according to claim 1, characterized in that: The side buffer support includes a support seat at the upper corner of the base, a second limiting frame at the upper end of the support seat, and a side buffer rubber pad embedded in the second limiting frame at the bottom.

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