Composite-rigidity and large-damping vibration isolator
A composite stiffness and vibration isolator technology, applied in the direction of shock absorbers, elastic shock absorbers, shock absorbers, etc., can solve the problems of poor low frequency vibration isolation effect, lower limit of vibration isolation frequency, beam misalignment, etc., to enhance impact resistance. capacity, improve stability, overcome the effects of low damping
Inactive Publication Date: 2019-08-23
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
This swinging condition can easily cause beam misalignment, making it difficult to meet the vibration isolation requirements of optoelectronic equipment
[0004] At present, the mainstream metal vibration isolators are mostly single stiffness and damping structure, the vibration isolation mechanism is single, the vibration isolation frequency has a lower limit, and the low frequency vibration isolation effect is poor
In a complex vibration environment, it is difficult to meet the stringent requirements for vibration control of precision electronics, optics and other equipment
Method used
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[0019] see figure 1 — figure 2 , a composite rigidity large damping vibration isolator, including a lower U-shaped beam 1, an upper U-shaped beam 2, an upper connecting plate 3, a wire mesh spring 4, a U-shaped beam connecting bolt 5, a U-shaped beam connecting nut and a washer 6 , the lower connection plate 7, the connection plate pre-tightening nut 8, the connection plate gasket 9, the bottom surfaces of the upper U-shaped beam 1 and the lower U-shaped beam 2 are in contact with each other, the vertical through holes at both ends are concentrically aligned, and the upper U-shaped beam 1 and the lower U-shaped beam 2 are in contact with each other. The lower U-shaped beam 2 is fixed together by two U-shaped beam connecting bolts 5 and U-shaped beam connecting nuts and washers 6 inserted into the through holes on both sides, and the cylindrical joint of the upper connecting plate 3 passes through the upper U-shaped beam 2 upwards. The through hole in the middle, the cylindri...
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The invention belongs to the technology application field of vibration isolation buffering and relates to a composite-rigidity and large-damping vibration isolator. The composite-rigidity and large-damping vibration isolator comprises a lower U-shaped beam 1, an upper U-shaped beam 2, an upper connecting disc 3, a metal wire mesh spring 4, U-shaped beam connecting bolts 5, U-shaped beam connectingnuts and gaskets 6, a lower connecting disc 7, a connecting disc pre-tightening nut 8 and a connecting disc gasket 9. The rigidity of the vibration isolator is commonly provided by the upper U-shapedbeam, the lower U-shaped beam and the metal wire mesh spring, the damping is mainly provided by the metal wire mesh spring, the lateral rigidity and structural strength of the vibration isolator canbe greatly improved at the same time through the upper U-shaped beam and the lower U-shaped beam, and therefore the composite-rigidity and large-damping vibration isolator can have a long service lifeand high reliability.
Description
technical field [0001] The invention relates to the application field of vibration isolation and buffering technology, in particular to a damping vibration isolator with high composite stiffness. Background technique [0002] With the development of rail vehicles, aircraft, and ship technologies, the vibration environment on various vehicles will become increasingly complex, and the equipment carried on them will have increasingly stringent requirements on the vibration environment. Especially for electronic and optical equipment, in order to improve the measurement and control accuracy and increase the reliability of its work, it is necessary to install efficient vibration isolation and vibration reduction devices between the equipment and the carrier platform. [0003] Most of the current metal spring vibration isolators focus on the isolation of vertical vibration, and the lateral stiffness is insufficient. However, various mobile platforms will vibrate in at least six d...
Claims
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IPC IPC(8): F16F7/12
CPCF16F7/128
Inventor 文立华张敬一校金友王宽王博黄宗堂
Owner NORTHWESTERN POLYTECHNICAL UNIV