Three-way irrotational displacement absorber

Abstract

The invention discloses a three-way irrotational displacement absorber, which is applied to the vibration absorbing platforms of vehicle-mounted, ship-mounted and airplane-mounted photoelectric devices. The absorber comprises a baseplate component, a rocker component and an adapter plate component, wherein, the baseplate component is connected with a carrier and the adapter plate component is connected with load; and the rocker component is a rectangle frame which is formed by two groups of hinged rockers and two cylinder rods, and four vertexes thereof are hinged with four corners of the adapter plate in a sliding manner. When the adapter plate is applied with any acting force, the rocker component can only drive the adapter plate to move horizontally in X and Y directions but not rotate; the four vertexes of the rocker component are hinged with a pair of sliding auxiliary seats and a pair of fixed rotating auxiliary seats of the baseplate component so as to drive the adapter plate component to move horizontally in a Z direction but not rotate; and meanwhile the adapter plate component is connected with four three-way absorbers in the baseplate component so as to reduce the vibration in three directions. The three-way irrotational displacement absorber solves the problem that angular displacement is randomly caused in case of vibration disturbance for the vibration absorbing platform and provides technical support for improving the steady precision of the photoelectric load.

Description

technical field [0001] The invention belongs to the technical field of precision instrument vibration reduction, and mainly relates to a vibration absorber, in particular to a non-angular displacement vibration absorber used in precision instruments with strict requirements on the vibration environment. Background technique [0002] In order to provide a good working environment for vehicle-mounted, ship-borne and airborne equipment, especially precision instruments with strict requirements on the vibration environment, it is often necessary to install a shock absorber to isolate external vibrations, but due to the anisotropy of the shock absorber and the external Many factors such as the randomness of vibration cause the vibration damping platform to inevitably undergo random angular displacement during vibration, which greatly reduces the accuracy of precision instruments. Therefore, it is necessary to use a vibration absorber without angular displacement to overcome the di...

AI Technical Summary

Problems solved by technology

[0003] As we all know, the vibration environment is complex and random, and there may be vibrations in all directions at the same time. If only one-way vibration reduction without angular displacement can be achieved, and the angular displacement cannot be limited in other directions or there is no vibration isolation capability at all, this is also unsatisfactory. The requirements of some precision instruments for the vibration environment may even lead to serious consequences of damage to precision instruments

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