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Low-frequency air spring vibration isolator with motion converter

A technology of air springs and converters, applied in gas shock absorbers, spring/shock absorbers, springs, etc., can solve problems such as system instability

Inactive Publication Date: 2015-01-28
哈尔滨恒信防微振技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lower the frequency of the vibration signal, the greater the deformation of the air spring vibration isolator. Such deformation makes the system prone to large-scale motion. This motion includes vertical motion, translation and swing, etc. Due to the air spring vibration isolation The low stiffness of the device will lead to the instability of the system

Method used

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  • Low-frequency air spring vibration isolator with motion converter
  • Low-frequency air spring vibration isolator with motion converter
  • Low-frequency air spring vibration isolator with motion converter

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing, embodiment of the present invention is described in further detail:

[0013] A low-frequency air spring vibration isolator with a motion converter, the vibration isolator is directly composed of an upper cover plate 6, a rubber bladder 1, a lower cover plate 7 and a cylinder 2 from top to bottom, wherein the rubber bladder 1 passes through The lower cover plate 7 is directly connected to the cylinder 2, and the main air chamber 3 and the auxiliary air chamber 4 are respectively formed in the rubber bag 1 and the cylinder 2. The compressed air enters the air cylinder 2 through the air inlet 11 arranged on the side wall of the cylinder 2. In the auxiliary air chamber 4, it enters the main air chamber 3 of the rubber bag 1 through the throttle hole 5 arranged in the auxiliary air chamber 4. On the upper end of the cylinder 2, a movement conversion is installed inside the rubber bag 1. device 8; the motion converter 8 is compo...

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Abstract

The invention relates to a low-frequency air spring vibration isolator with a motion converter and belongs to the field of precision measurement and precision mechanical / optical processing. The low-frequency air spring vibration isolator is characterized in that the motion converter is assembled inside a traditional air spring passive vibration isolator, is a combined part and mainly comprises a flywheel mass, a screw rod and the like; the load vertical vibration is converted into the rotating motion of a flywheel in the load vibration process. The vibration isolator has the benefits that a certain mechanical damping is provided, so that a vibration signal can be can quickly attenuated; the inherent frequency of the vibration isolator can be further reduced on the basis of not changing the air spring stiffness, so that the stability of a vibration isolation system under the large load is greatly improved.

Description

technical field [0001] The invention belongs to the fields of precision measurement and precision machinery / optical processing, and mainly relates to a low-frequency air spring vibration isolator with a motion converter. Background technique [0002] In research fields such as optoelectronics, life sciences, nanotechnology, and microelectronics, the requirements for environmental vibrations are very stringent. Especially the relatively low frequency vibration is the key problem that the vibration isolation technology needs to face. In the laboratory, especially the precision measuring equipment and optical experimental system in the ultra-clean laboratory are often faced with vibration signals with relatively low frequency and low amplitude. The characteristic of ordinary air spring vibration isolators is that the system stiffness index of the vibration isolator itself should be as low as possible. If the stiffness is low enough, the air spring vibration isolator can isola...

Claims

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Application Information

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IPC IPC(8): F16F9/32
CPCF16F9/0281F16F9/0209F16F9/04
Inventor 蒲展
Owner 哈尔滨恒信防微振技术开发有限公司
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