Single cylindrical multi-directional constant-stiffness all-metal vibration absorber

Abstract

The invention provides a monomer cylindrical multi-directional constant-stiffness all-metal vibration absorber which comprises a mounting shaft, an axial lower end limiting stopper, an axial upper end limiting stopper, an axial vibration reduction medium, a first shell, a second shell, a radial limiting stopper and a radial vibration reduction medium, wherein the axial and radial vibration reduction components are of mutually independent structures; the axial vibration reduction component is cylindrical; the radial vibration reduction component is annular; the axial vibration reduction component is arranged in the radial vibration reduction component. By virtue of the unique design method of the vibration reduction components, multi-directional constant stiffness can be realized, the purpose of ensuring mutually-independent axial and radial stiffness regulation can be achieved, and the axial and radial resonant frequency intercoupling problem is radically solved; by virtue of controlling the densities of the vibration reduction media in the vibration reduction components, the resonant frequency points can be accurately controlled, the difference between the axial resonant frequency and the radial resonant frequency is controlled within + / -0.5Hz, and the usage requirements of vehicles, ships, airplanes and rockets in various occasions and the requirements for the multi-directional constant-stiffness vibration isolation and long-term storage of various instruments are met.

Description

technical field [0001] The invention relates to a multi-directional and equal-rigidity all-metal shock absorber, in particular to a multi-directional and equal-rigidity all-metal shock absorber with a single cylindrical structure. Background technique [0002] The existing single three-way equal-stiffness metal shock absorber uses the same damping member in the axial and radial directions. Due to the different structures in different directions, the stiffness in different directions is different, and it is difficult to balance the resonance frequencies of the three directions. To achieve the same, therefore, it is difficult for the existing single metal shock absorber to meet the requirement that the resonance frequency difference in different directions of the single all-metal shock absorber is less than 0.5 Hz. Contents of the invention [0003] The technical problem of the present invention is: to overcome the deficiencies of the prior art, to provide a single cylindric...

AI Technical Summary

Problems solved by technology

[0002] The existing single three-way equal-stiffness metal shock absorber uses the same damping member in the axial and radial directions. Due to the different structures in different directions, the stiffness in different directions is different, and it is difficult to balance the resonance frequencies of the three directions. Do the same, therefore, the existing single metal shock absorber is difficult to meet the requirement that the resonance frequency difference in different directions of the single all-metal shock absorber is less than 0.5Hz

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