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Multi-degree-of-freedom parallel vibration damping mechanism

A technology of vibration damping mechanism and degrees of freedom, applied in non-rotational vibration suppression and other directions, can solve problems such as less adjustment of platform degrees of freedom, poor bearing capacity of moving platforms, and inability to meet the needs of complex force fields, so as to improve structural reliability and performance. Carrying capacity, the effect of meeting the needs of use

Pending Publication Date: 2019-08-30
WUXI PROFESSIONAL COLLEGE OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this prior art has the disadvantages of poor load-carrying capacity and low structural strength of the moving platform
More importantly, since the branch chain in the prior art is composed of hinged connecting rod A and connecting rod B, when the double-rod magneto-rheological damper on the static platform fails, the dynamic platform may not be able to achieve horizontal rotation
More importantly, the rotatable range of the double-rod MR damper in the horizontal direction is very small, and the moving platform must rely on three double-rod MR dampers at the same time to achieve a small horizontal rotation. This results in lower reliability of the entire magnetorheological six-degree-of-freedom parallel damping platform
At the same time, this existing technology also has the defect of less adjustment of the degree of freedom of the moving platform, which cannot meet the use requirements of complex force fields

Method used

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  • Multi-degree-of-freedom parallel vibration damping mechanism
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Examples

Experimental program
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Effect test

Embodiment 1

[0023] ginseng figure 1 and figure 2 A specific embodiment of a multi-degree-of-freedom parallel vibration damping mechanism disclosed in the present invention.

[0024] In this embodiment, the multi-degree-of-freedom parallel vibration damping mechanism includes: a base 1 , a support base 14 disposed on the base 1 , and the support base 14 is provided with two positioning plates 5 arranged in parallel up and down. The positioning plate 5 is provided with an arc-shaped guide groove 4 , and the base 1 is symmetrically provided with at least two first dampers 13 , and the first dampers 13 are provided with sliders 15 extending toward the support seat 14 . The support seat 14 provides axial support force, supports the two positioning plates 5 , and forms an integral structure with the two positioning plates 5 .

[0025] The slider 15 protrudes from top to bottom with guide rods 3 embedded in the guide groove 4 , and the two guide rods 3 are arranged coaxially and vertically in...

Embodiment 2

[0032] With reference image 3As shown, the main difference between the multi-degree-of-freedom parallel vibration-damping mechanism disclosed in this embodiment and the multi-degree-of-freedom parallel vibration-damping mechanism disclosed in Embodiment 1 is that in this embodiment, the first damper The included angles formed by 13 and the second damper 11 along the plan view angle are all equal. In this embodiment, the included angle α formed by the first damper 13 and the second damper 11 along the plan view angle is 45 degrees.

[0033] The technical solutions of the same part of the multi-degree-of-freedom parallel vibration-damping mechanism disclosed in this embodiment and the multi-degree-of-freedom parallel vibration-damping mechanism disclosed in Embodiment 1 are described in Embodiment 1, and will not be repeated here.

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Abstract

The invention provides a multi-degree-of-freedom parallel vibration damping mechanism. The vibration damping mechanism comprises a base and a supporting base arranged on the base, wherein the supporting base is provided with two positioning plates which are arranged in parallel in an up-down mode, the positioning plates are provided with arc-shaped guide grooves, at least two first dampers are symmetrically arranged on the base, the first dampers extend to the supporting base and are provided with sliding blocks, guide rods which are embedded into the guide grooves are arranged on the tops andthe bottoms of the sliding blocks in a protruding mode, the supporting base is connected with a mounting base, the top of the supporting base is provided with a first hinged ball base penetrating through the mounting base, a supporting plate is arranged at the top of the first hinged ball base, a plurality of second hinged ball bases are symmetrically arranged on the inner side wall of the mounting base, and a second damper is arranged between each second hinged ball base and the side part of the supporting plate. According to the multi-degree-of-freedom parallel vibration damping mechanism,the use requirements of a complex force field are met, the structure reliability and the bearing capacity of the multi-degree-of-freedom parallel vibration damping mechanism are remarkably improved, and the rotation amount is large in the horizontal direction.

Description

technical field [0001] The invention relates to the technical field of vibration damping devices, in particular to a multi-degree-of-freedom parallel vibration damping mechanism. Background technique [0002] The elimination of the vibration generated by the mechanical device during operation is a technical problem to be solved urgently at present. Due to its good vibration reduction effect, dampers are widely used in rail vehicles, machinery and equipment and other scenarios. [0003] The Chinese invention patent with publication number CN106627287A discloses a magneto-rheological six-degree-of-freedom parallel damping platform for vehicle seats. In this prior art, three branch chains are connected in parallel between the moving platform and the static platform, and each branch chain is in a hinged structure, and an egg cone single-rod magneto-rheological damper and a spring are arranged inside the branch chain; Three horizontally arranged double-rod magneto-rheological d...

Claims

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Application Information

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IPC IPC(8): F16F15/02
CPCF16F15/02
Inventor 张锦龙
Owner WUXI PROFESSIONAL COLLEGE OF SCI & TECH