High-precision vibration absorber

A shock absorber, high-precision technology, applied in the functional characteristics of spring/shock absorber, spring/shock absorber, vibration suppression adjustment, etc., can solve the problem of mass component adjustment step size, difficulty in meeting precise frequency modulation, and non-adjustable spring stiffness and other issues, to achieve the effect of improving cross-section utilization, compact structure, and increasing compactness

Pending Publication Date: 2021-03-30
WUHAN SECOND SHIP DESIGN & RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the spring-type vibration absorber is that the spring stiffness cannot be adjusted, and the frequency of the vibration absorber needs to be adjusted by increasing or decreasing the mass element.
However, when the existing vibration absorber increases or decreases the mass element, the adjustment step of the mass element is relatively large, which is difficult to meet the needs of precise frequency modulation
[0004] In order to effectively improve the effect of high-precision frequency modulation of the vibration absorber, a high-precision vibration absorber is needed. At present, domestic vibration absorbers cannot meet the above requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the shock absorber includes: a support assembly 11, a mass assembly 12 and an elastic assembly 13; as figure 2 As shown, the support assembly 11 includes: a guide rod 1, a threaded fastener I2, a positioning pin 3 and a positioning nut 4; as image 3 As shown, the mass assembly 12 includes: a mass block 5, a mass sheet 6, a mass pad 7 and a threaded fastener II 8; as Figure 4 As shown, the elastic component 13 includes: a positioning cylinder 9 and a spring 10; wherein, each component of the shock absorber in this embodiment is made of metal (mass 5, mass sheet 6 and mass pad 7 are made of steel), which has performance Stability, high and low temperature resistance, anti-corrosion and anti-rust, radiation resistance, oil resistance.

[0034] The connection relationship of the shock absorber is: the elastic assembly 13 clamps the mass assembly 12 in the middle for shock absorption, the elastic assembly 13 is fixed on the support assembly 11...

Embodiment 2

[0048] On the basis of Embodiment 1, the materials of mass block 5, mass sheet 6, and mass pad 7 can be changed from steel to copper with a higher density. In this way, the size of mass element 11 can be further reduced to make vibration absorption The device is more compact.

Embodiment 3

[0050] On the basis of Embodiment 1 or 2, the mass pad 7 can be changed to a standard flat washer to reduce manufacturing costs.

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PUM

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Abstract

The invention discloses a high-precision vibration absorber which comprises a supporting assembly, a mass assembly and an elastic assembly. The mass assembly is clamped in the elastic assembly, and the elastic assembly is fixed to the supporting assembly; the supporting assembly is fixed to vibration equipment, wherein the mass assembly and the elastic assembly are used for vibration absorption, and the mass of the mass assembly is adjustable, so that multistage frequency modulation can be performed, and the frequency modulation step length is controlled within a set range, wherein each assembly is made of metal materials.

Description

technical field [0001] The invention relates to the technical field of vibration and noise control, in particular to a high-precision vibration absorber. Background technique [0002] The dynamic vibration absorber makes the main structure produce anti-resonance through its own resonance, thereby reducing the vibration line spectrum of the main structure. Dynamic shock absorbers are generally composed of mass elements, elastic elements, and support elements. According to the different working principles of elastic elements, shock absorbers can be divided into spring type, guide rod type, diaphragm type, etc. [0003] Among them, the more commonly used spring-type shock absorber has the advantage that the stiffness of the spring can be designed according to the needs, and it is easy to purchase finished products from the market, and the quality is guaranteed. The disadvantage of the spring-type vibration absorber is that the spring stiffness cannot be adjusted, and the freq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/06F16F15/26
CPCF16F15/06F16F15/261F16F2228/04F16F2228/066
Inventor 张针粒熊波刘海建王强勇强磊李强代成名戴睿婕郭寒贝商超谭海涛
Owner WUHAN SECOND SHIP DESIGN & RES INST
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