Six-dimensional stable square cabin with adjustable vibration isolation parameters

Abstract

A six-dimensional stable square cabin with adjustable vibration isolation parameters mainly comprises a base, lower vibration isolators, lower connection plates, hydraulic cylinders, upper connectionplates, upper vibration isolators, a stable cabin body, damping bearing units, horizontal damping units, hooke hinges, spherical hinges and spherical joints. The lower vibration isolators are uniformly arranged on the lower portions of the base, and the horizontal damping units with the adjustable parameters are mounted in the base so that vibration of the lower portion of the system can be isolated effectively, and vibration isolation in different properties is achieved; and the reasonable vibration isolation parameters can be selected according to the outside vibration modes, and accordinglythe environmental adaptability of the system is strengthened. The isolators are distributed symmetrically on the mechanism, and a classic Stewart mechanism is selected as a stable platform, so that it is guaranteed that six-dimensional random vibration can be isolated effectively by the system, and the universality of the system is strengthened. Dampers are arranged among driving branches, so that the bearing capacity of the system is strengthened, the stability of the system is further promoted, and accordingly the using range of the system is enlarged.

Description

technical field [0001] The invention relates to a six-dimensional stable shelter. Background technique [0002] In the process of aerospace, offshore operations, ambulance medical treatment, etc., the surrounding vibration environment has a non-negligible interference effect on it, seriously affecting the quality and efficiency of work. In order to ensure the normal operation of the work installed on satellites, ships, vehicles and other carriers, it is necessary to eliminate the multi-dimensional vibration interference caused by the surrounding environment as much as possible. However, the existing vibration isolation system has a single system structure and limited load capacity, and often cannot meet the vibration isolation requirements of multi-dimensional random vibration. In order to better apply to various environments, better realize the multi-dimensional vibration isolation function, and ensure the normal operation of precision instruments on the carrier, it is ver...

AI Technical Summary

Problems solved by technology

[0003] Patent CN205350188U proposes a six-degree-of-freedom parallel anti-vibration cabin. Although this invention can achieve multi-dimensional vibration reduction, due to the fixed structure of its vibration isolation system, it is impossible to adjust the vibration isolation properties and degree of vibration isolation of the system. Its application range Restricted by the environment; the patent CN101476611A proposes a six-degree-of-freedom large-amplitude vibration active isolation platform, which has a good vibration isolation effect on large-amplitude and high-frequency vibrations, but its attitude adjustment range is limited, which limits its application Scope; Patent CN104308838A proposes a six-degree-of-freedom parallel motion table with high-low frequency compound drive. This invention needs to add twelve drives, and the ability to suppress high-frequency vibration is weak, and the rational use of vibration isolation resources has not been realized.

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