Multi degrees of freedom parallel mechanisms combined elastic vibration damper

A vibration damping device and a technology of degrees of freedom, applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problems of poor reliability, increased system weight, complex structure, etc., and achieve reliable work and strengthened Balance and vibration reduction, simple overall structure

Inactive Publication Date: 2006-04-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because as the number of dimensions increases, the number of layers also increases, the structure will be more complex, the weight of the system will also increase, and the reliability will deteriorate

Method used

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  • Multi degrees of freedom parallel mechanisms combined elastic vibration damper
  • Multi degrees of freedom parallel mechanisms combined elastic vibration damper
  • Multi degrees of freedom parallel mechanisms combined elastic vibration damper

Examples

Experimental program
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Embodiment Construction

[0018] In the embodiment of the stretcher bracket, 2, 3, and 6 branches are respectively used between the stretcher and the vehicle floor or between other objects to be damped as required, and 1, 4, and 5 branches can also be used as planar or spatial parallel mechanisms. , wherein the stretcher is fixedly connected to the moving platform (3) of the parallel mechanism, the static platform (4) is fixed to the vehicle floor, and the spring and damping system (1 ) is balanced with the external load. The permanent magnetic steel (2) is arranged between the moving platform (3) and the static platform (4) as a further balance and vibration reduction in the main load direction (ie, up and down direction).

[0019] figure 1 It consists of two identical sets of P, R, and R pairs in parallel connection with a single open chain, among which, B, C, and D are rotating pairs (R pairs); A, E are moving pairs (P pairs). A spring and a damping system (1) with appropriate stiffness are used t...

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Abstract

The invention relates to a vibration damping device, in particular to a multi-dimensional vibration damping device, which can be used in multi-dimensional vibration damping, anti-vibration, and vibration isolation systems. It is composed of a multi-degree-of-freedom parallel mechanism and a combined spring. Space type, the structure of the combined spring is composed of a spring and a damping system, the number of which is determined by the degree of freedom of the parallel mechanism, the main load direction (that is, the up and down direction) is equipped with permanent magnets to bear the main load in the up and down direction, and Further reducing the vibration in the up and down direction can effectively realize the vibration reduction of multiple degrees of freedom, without the need of a multi-layer structure, so that the overall structure is simple and the work is reliable.

Description

technical field [0001] The invention relates to a vibration damping device, in particular to a multi-degree-of-freedom parallel mechanism combined elastic vibration damping device composed of a parallel mechanism and a combined spring. It can be used in multi-dimensional vibration reduction, anti-vibration, and vibration isolation systems, such as: three-dimensional anti-vibration system for stretcher supports. Background technique [0002] If the stretcher bracket is directly rigidly connected with the vehicle body during use, it will be affected by factors such as road conditions, engine vibration, vehicle body starting and braking, and turning, and the vibration displacement direction of the stretcher bracket caused by it is three-dimensional. Vibration must also require three-dimensional vibration reduction. In order to solve this problem, the traditional method is to use multi-layer one-dimensional vibration reduction, which has a complex structure and is not reliable....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/00F16F7/00
Inventor 马履中尹小琴
Owner JIANGSU UNIV
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