Damper

A damper and damping cavity technology, applied in the direction of shock absorbers, shock absorbers, liquid shock absorbers, etc., can solve the problems of large starting resistance, high heating temperature, damper damage, etc., and achieve low starting resistance and simple structure. , the effect of stable performance

Active Publication Date: 2008-08-20
尹学军 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to structural reasons, it has inherent defects: 1) Due to the static friction and sliding friction between the seal and the piston rod, and the piston and the damping cylinder, the starting resistance is relatively large, and the damping force has a poor correlation with the speed when the amplitude is small. , resulting in complex theoretical calculations and large errors; 2) A tight seal must be used, but the seal is easy to wear or age. Once the seal fails, the pressure difference cannot be established, and the damping performance will be lost rapidly; 3) The structure of the parts is complex and the number is large 1. The processing precision is high, so the cost is high; 4) The damping performance is sensitive to the processing precision an

Method used

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Examples

Experimental program
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Effect test

Example Embodiment

[0035] Example 1

[0036] See figure 1 , 2 , It includes a moving body 1 and a cylinder 2. The moving body 1 is partially located in the cylindrical cylinder 2 and can move axially relative to the cylinder 2. The cylinder is provided with a damping chamber extending in the axial direction, The damping chamber is filled with viscous damping liquid 3, here is the modified emulsified asphalt which is viscous liquid at room temperature. The moving body 1 is composed of a cylindrical moving blade. The moving blade is located in the damping chamber and is connected to the damping chamber. The wall constitutes a shearing cavity, and the radial size of the shearing cavity is much smaller than its axial size. The end of the cylinder is provided with a cylinder head 2d, which cooperates with the sliding guide of the moving blade, a sliding seal ring 5a is embedded in the cylinder head, and the end of the moving blade is fixed with a sliding guide block 4b, which is cross-shaped, allowing t...

Example Embodiment

[0039] Example 2

[0040] See attached image 3 , 4 Compared with Embodiment 1, a cylindrical stator vane 2a is provided in the center of the cylinder body 2 to transform the damping chamber into an annular damping chamber. Correspondingly, the rotor blades of the rotor body 1 are tubular, and the rotor blades are located in the damping chamber. In the chamber, the damping chamber wall and the stator blade 2a form a shearing chamber. The damping chamber and the shearing chamber are filled with methyl silicone oil. The transverse dimension of the shearing chamber is much smaller than its axial dimension. The lower part of the damping chamber is provided There is an annular elastic compensating body 6b, the damping chamber on the top of the moving body is provided with an elastic compensating body 6b, and the elastic compensating body 6b is an elastic foamed polyurethane with an airtight elastic layer on the outside.

[0041] Compared with embodiment 1, the moving blade of this embo...

Example Embodiment

[0045] Example 3

[0046] See attached Figure 7 , 8 Compared with Example 2, the stationary blades in the damping chamber in the cylinder 2 are circular tubular 2c, and the moving body 1 is composed of two circular tubular moving blades, forming three concentric shearing chambers. The damping chamber A ring-shaped elastic compensating body 6b is provided at the lower part of the, and the elastic compensating body is an elastic foamed polyurethane with an airtight elastic layer on the outside. A compensation chamber is provided on the top of the moving body. The compensation chamber is provided with an airtight elastic membrane 6c, one side of which is filled with compressed air and one side is filled with damping liquid, and is connected to the damping chamber to compensate for the volume change of the damping chamber ; In order to increase the viscous resistance, the end of the inner rotor blade is also provided with a flanging spoiler ring.

[0047] In this embodiment, there ar...

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PUM

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Abstract

The invention relates to a damper, comprising a cylinder body and a moving body; the moving body is at least positioned in the cylinder body partially, the cylinder body is internally provided with at least one chamber extending along the axial direction, and the chamber is filled with viscous damping liquid so as to a damping chamber; the damper is characterized in that the moving body consists of moving blades arranged in the damping chamber; the moving blades and the wall of the damping chamber form a shearing cavity; the thickness of the shearing cavity is far less than the axial dimension thereof; an elastic compensating body is arranged in the damping chamber or a compensating chamber communicated with the damping chamber. The damper is characterized by soft damping characteristics, simple structure, low manufacturing cost, stable performance, long service life, easy regeneration and environmental protection.

Description

technical field [0001] The present invention is a divisional application with application number 200410075501.2, and relates to a damper, especially a shock absorber for a vehicle suspension system and a vibration-reducing energy-consuming damper for a building structure. Background technique [0002] Damper is a widely used basic component of vibration control, which is used for vibration reduction, buffering and energy dissipation of machinery, vehicles, bridges and building structures. [0003] The common damper is a hydraulic cylinder type. The piston only moves in the axial direction relative to the cylinder. It is called a single-axis damper. It is composed of a moving body, a moving body rod, a cylinder body and a seal. The moving body is generally cylindrical. The moving body is provided with a number of small holes or an appropriate radial gap is left between the cylinder and the moving body. When the moving body moves relative to the oil cylinder, the liquid seale...

Claims

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Application Information

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IPC IPC(8): F16F9/16F16F9/36F16F9/53F16F9/43
Inventor 尹学军
Owner 尹学军
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