Viscous fluid damper for on-orbit vibration isolation of spatial load

Abstract

The invention discloses a viscous fluid damper for the on-orbit vibration isolation of a spatial load, and belongs to the technical field of space optics. The technical problems of difficulty in sealing, low flexural rigidity, poor environmental adaptability, insensitivity to spatial micro vibration and inconsistency between performance under a spatial zero-gravity condition and performance on the ground in the prior art are solved. A wave spring piece I is fixedly connected to the top end of an intermediate shaft through a damping screw I, wherein an upper oil cavity is formed between the wave spring piece I and an end cover; the wave spring piece I is sealed with the upper oil cavity through an O-shaped sealing ring I1, and is sealed with the upper end of the intermediate shaft through an O-shaped sealing ring I2; a wave spring piece II is fixedly connected to the bottom end of the intermediate shaft through a damping screw II; a lower oil cavity is formed between the wave spring piece II and a base; the wave spring piece II is sealed with the lower oil cavity through an O-shaped sealing ring II1, and is sealed with the bottom end of the intermediate shaft through an O-shaped sealing ring II2.

Description

technical field [0001] The invention belongs to the technical field of space optics, in particular to a viscous liquid damper used for on-rail vibration isolation of space loads. Background technique [0002] With the development of space technology, space optical remote sensors with large aperture and high resolution have more and more important commercial and military values. However, the undesired vibrations generated by the motion facilities such as the attitude-adjusting gyroscope, reaction flywheel, solar panel deployment mechanism, and cooling pump on the spacecraft will greatly reduce the pointing accuracy and imaging quality of the space optical remote sensor, and the sensitive equipment on the spacecraft Also due to the influence of vibration, the expected working performance cannot be achieved. At present, vibration isolation devices are often used for vibration isolation. [0003] However, the vibration isolation devices in the prior art have technical defects ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a viscous liquid damper for on-rail vibration isolation of space loads, which solves the problem of difficult sealing, low bending rigidity, poor environmental adaptability, insensitivity to space micro-vibration, and weightlessness in space in the prior art. Technical issue where performance under conditions does not match performance on the ground

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