Damper of multi-dimensional vibration isolation platform

A technology of vibration isolation platform and damper, which is applied to the damper with adjustable damping in multi-dimensional vibration isolation platform, vibration reduction in mechanical engineering, and vibration isolation field, which can solve the problem of limited application occasions, increased static displacement of vibration isolation system, Reduced stability and other issues, to achieve the effects of low dynamic natural frequency, good engineering applicability, and small static deformation

Active Publication Date: 2015-07-15
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] But for the vertical vibration isolation system, reducing the stiffness will increase the static displacement and decrease the stability of the vi

Method used

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  • Damper of multi-dimensional vibration isolation platform
  • Damper of multi-dimensional vibration isolation platform
  • Damper of multi-dimensional vibration isolation platform

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Embodiment Construction

[0091] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0092] Such as Figure 1 to Figure 5 The structure of the present invention shown is a multi-dimensional vibration isolation platform with adjustable stiffness and damping, including a base frame A and a load-bearing platform B. The base frame A includes a base frame upper plate A-1 and a base frame lower plate arranged in parallel. The plate A-7, between the upper plate A-1 of the base frame and the lower plate A-7 of the base frame, is fixedly connected through a plurality of support columns A-8 of the base frame.

[0093] figure 1 with Figure 4 , the base frame A includes eight base frame support columns A-8; the eight base f...

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Abstract

The invention discloses a damper of a multi-dimensional vibration isolation platform. The damper comprises a damper piston rod, a damper work cylinder, a damper base and a damper piston. The upper end of the damper piston rod is fixedly connected with a damper spherical hinge base, and the lower end of the damper piston rod is fixedly connected with the damper piston; the damper piston is located in the damper work cylinder; the upper end of the damper work cylinder is provided with a piston rod guide sleeve and a piston rod sealing ring. By the adoption of the technical scheme, in a certain deformation range, a hydraulic pressure component serving as a negative rigid component is in parallel connection with an air spring serving as a positive rigid component, quasi-zero rigidity of the vibration isolation platform in a balance position and non-linear rigidity of the vibration isolation near the balance position are achieved, the difficulties caused when a traditional linear vibration isolation system isolates low-frequency vibration or ultra-low-frequency vibration can be solved, rigidity and damping can be adjusted simply and conveniently, and the damper is suitable for wide-frequency-domain vibration isolation and has good engineering applicability.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering and relates to vibration reduction and vibration isolation technology in mechanical engineering. More specifically, the present invention relates to a damper with adjustable damping in a multi-dimensional vibration isolation platform. Background technique [0002] In order to overcome the contradiction between system stiffness and static displacement, the vibration isolation system should have high static stiffness and low dynamic stiffness at the same time. Higher static stiffness ensures greater bearing capacity of the system and smaller static displacement; lower dynamic stiffness ensures lower natural frequency of the system and better low-frequency vibration isolation effect. [0003] In traditional passive vibration isolation systems, the external excitation frequency is greater than the natural frequency of the vibration isolation system itself. times, in order to play a r...

Claims

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Application Information

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IPC IPC(8): F16F9/06F16F9/08F16F9/19F16F9/44
Inventor 时培成彭闪闪孙卫强王慧莹张军聂高发
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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