Hydraulic vibration active isolation platform

Abstract

The invention discloses a hydraulic vibration active isolation platform which comprises an upper platform, a lower platform, a two-degree-of-freedom hook joint, a three-degree-of-freedom hook joint and a hydraulic active actuating rod. According to the invention, since the two-degree-of-freedom hook joint and the three-degree-of-freedom hook joint are designed by adopting a pre-tightening anti-backlash technology, the hinge gap is eliminated and the motion accuracy of the hydraulic vibration active isolation platform is much higher. Based on the isolation platform, an active isolation platform with six-degree-of-freedom large-range vibration isolation capability is provided for the application field of vehicle mounted or onboard optical observation and laser aiming and other technologies, so that the disadvantage that the low-frequency large amplitude vibration is hardly isolated by the traditional isolation platform is overcome.

Description

technical field [0001] The invention belongs to the field of precision machinery, and in particular relates to a hydraulic vibration active isolation platform. Background technique [0002] As the precision of vehicle-mounted and marine optical equipment and laser aiming equipment is getting higher and higher, external vibration signals are gradually becoming one of the important factors affecting the accuracy of these equipment. Due to the complex working environment of vehicles and ships, the payloads such as optical and laser equipment installed on them are always in vibration, which makes the vibration of vehicles or ships during driving, especially in the case of long-distance observation. A small angular deviation caused will result in a missed target. Therefore, it is often necessary to install vibration isolation devices between these optical and laser equipment and vehicles to improve the observation accuracy of optical equipment and the aiming accuracy of laser eq...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention proposes a hydraulic vibration active isolation platform, which provides a six-degree-of-freedom wide-range vibration isolation capability for technical application fields such as vehicle-mounted and ship-borne optical observation and laser aiming. Active vibration isolation platform to make up for the lack of traditional vibration isolation platforms that are difficult to isolate low-frequency and large-amplitude vibrations

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