A six-degree-of-freedom quasi-zero-stiffness vibration isolation device, its debugging method, and vibration isolation method

A technology of quasi-zero stiffness and debugging method, applied in the direction of shock absorber, spring/shock absorber functional characteristics, shock absorber, etc. The debugging is cumbersome and other problems, to achieve the effect of compact structure, improved bearing capacity, and simple debugging process

CN111609067BActive Publication Date: 2021-06-25OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-06-25

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Abstract

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. A six-degree-of-freedom quasi-zero-stiffness vibration isolation device includes a top plate, a bottom plate, and a vibration isolator arranged between the top plate and the bottom plate; the vibration isolator includes a central support spring and a spring bracket; the central support spring The two ends of the two ends are respectively hung on the central position of the top plate and the bottom plate; there are four groups of the spring brackets, which are distributed rotationally symmetrically at equiangular intervals along the vertical axis of the bottom plate; the two ends of each group of spring brackets are respectively connected to the top plate and The bottom plate is connected, and the spring support is arranged obliquely relative to the horizontal direction. The beneficial effects of the present invention are: adopting four spring supports and one central support spring can realize the effect of vibration isolation with six degrees of freedom and quasi-zero stiffness vibration isolation at the same time, and has the characteristics of compact structure and low natural frequency; and the debugging process is simple and reliable , with the ability of engineering field application.
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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...

Examples

Embodiment Construction

[0037] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] One of the embodiments provided by the present invention is: a novel six-degree-of-freedom quasi-zero-stiffness vibration isolation device, the structure of which is as follows figure 1 As shown, it includes: a top plate 1, the edge of the top plate 1 is welded with four upper convex plates perpendicular to its top surface at equal intervals. Corresponding to the top plate 1, there is a bottom pl...