Six-freedom-degree quasi-zero stiffness vibration isolation device and debugging method and vibration isolation method of six-freedom-degree quasi-zero stiffness vibration isolation device

Abstract

The invention belongs to the technical field of vibration isolation, and particularly relates to a six-freedom-degree quasi-zero stiffness vibration isolation device and a debugging method and a vibration isolation method of the six-freedom-degree quasi-zero stiffness vibration isolation device. The six-freedom-degree quasi-zero stiffness vibration isolation device comprises a top plate, a bottomplate and a vibration isolator arranged between the top plate and the bottom, wherein the vibration isolator comprises a central supporting spring and four spring supports; the two ends of the centralsupporting spring are hung at the central positions of the top plate and the bottom plate respectively; the four spring supports are rotatably and symmetrically distributed along the vertical axis ofthe bottom plate at equiangular spacing; and the two ends of each spring support are connected with the top plate and the bottom plate respectively, and the spring supports are obliquely arranged relative to the horizontal direction. The six-freedom-degree quasi-zero stiffness vibration isolation device has the beneficial effects that the effects of six-freedom-degree vibration isolation and quasi-zero stiffness vibration isolation can be achieved simultaneously by adopting the four spring supports and one central supporting spring are adopted, the six-freedom-degree quasi-zero stiffness vibration isolation device has the characteristics of a compact structure and low inherent frequency, and the debugging process is simple, convenient and reliable and has the capacity of engineering fieldapplication.

Description

technical field [0001] The invention belongs to the technical field of vibration isolation, and in particular relates to a six-degree-of-freedom quasi-zero-stiffness vibration isolation device, a debugging method thereof, and a vibration isolation method. Background technique [0002] The vibration isolator is a device used to isolate the impact of external disturbance vibration on the normal working conditions, use accuracy and stability of the vibration-isolated equipment. It is mainly used in precision machine tools, sensitive instruments, automobiles and other occasions. Its key performance Parameters include vibration transmissibility, natural frequency, etc. [0003] An ideal vibration isolator should have the characteristics of low vibration transmission rate, high static stiffness, light weight, and low natural frequency, which can increase the use range of the vibration-isolated equipment, effectively reduce the natural frequency of the system, and increase the vibr...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the existing six-degree-of-freedom vibration isolation platform generally has the problems of large volume, complex structure, and cumbersome debugging, and the quasi-zero stiffness vibration isolator also has the problem of large duty cycle of negative stiffness components

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