Rubber air spring damper with presettable early-stage rigidity

A rubber air spring and damper technology, applied in the direction of gas shock absorber, can solve the problems of reducing the cost of shock absorption, waste of resources, difficulty, etc., and achieve the effect of reducing the cost of vibration isolation and shortening the length

Active Publication Date: 2017-02-22
安徽龙行密封件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this utility model patent obviously has the following disadvantages: 1. Two coil springs are required, and the length of the entire damper is relatively long, which is not suitable for installation in a space with a small distance; 2. It is difficult or even impossible to ensure the two springs in the process Only the stiffness of the spring (including tensile stiffness and compression stiffness) is equal, so the shock absorption effect is different in different wind directions; 3. The early stiffness of the damper cannot be changed to achieve the preset wind resistance level and reduce the cost of shock absorption; 4. A helical spring wo

Method used

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  • Rubber air spring damper with presettable early-stage rigidity
  • Rubber air spring damper with presettable early-stage rigidity
  • Rubber air spring damper with presettable early-stage rigidity

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0039] see figure 1 , the early rubber air spring damper with preset stiffness in this example is a kind of energy dissipation device that can be used for seismic reinforcement of building structures. It includes guide sleeve 1, first end cover 2 and The second end cover 3, wherein, the first end cover 2 and the second end cover 3 are respectively fixedly connected to the two ends of the guide sleeve by screws. A rubber air spring 4 is arranged axially in the guide sleeve 1, and a driving member extends from the center of the first end cover 2 into the guide sleeve 1 and presses on the rubber air spring 4; wherein, the The driving member is composed of a dynamic pressure plate 5 located at the upper end of the rubber air spring 4 and movably matched with the guide sleeve 1, and a driving rod 5-1 extending upward from the upper surface of the dynamic pressure plate 5 out of the guide sleeve 1. The driving rod 5-1 is located at The outer end of the guide sleeve 1 is provided w...

example 2

[0049] This example has the following differences from Example 1:

[0050] see Figure 8-10 , the first group of preloaded steel cables 8 and the second group of preloaded steel cables 9 are composed of three steel cables.

[0051] see Figures 8 to 13 , the upper head of the first group of preloaded steel cables 8 and the lower head of the second group of preloaded steel cables 9 are respectively fixed on the dynamic pressure plate 5 and the second set of steel cables by using cable self-locking anchors 16 instead of the eyebolts in Example 1. On the two end caps 3.

[0052] see Figures 14 to 16 , and combined with Figure 7 , the cable self-locking anchor 16 is composed of a mounting hole provided on the mounting plate 16-1, a jaw 16-2 and a locking bolt 16-4, wherein the mounting plate 16-1 is a movable Pressing plate 5 or second end cap 3 . The axis of the mounting hole is collinear with the straight line where the corresponding pre-compressed steel cable is located...

example 3

[0056] see Figures 17-21 , the rubber air spring damper with preset stiffness in the early stage in this example is a kind of vibration isolation device (also called seismic isolation support) that can be used for vertical isolation of buildings. Compared with Example 2, this example mainly has the following the difference:

[0057]1. As a shock-absorbing support, in order to facilitate installation, in this example, the connecting lug plate provided on the second end cover 3 in Example 2 is omitted, and the second end cover 3 is extended axially downward from the edge and then to the It extends radially outward, and is evenly provided with connecting bolt holes 18 at the edge. The second end cover 3 is used as the base of the shock-isolation support, and the length of the downward axial extension needs to be greater than the self-locking anchor 16 of the steel cable. The length of the part exposed on the outside of the second end cover 3 . The driving rod 5-1 of the drivin...

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Abstract

The invention discloses a rubber air spring damper with presettable early-stage rigidity. The rubber air spring damper with presettable early-stage rigidity is characterized in that a back pressure device is further arranged in a guide sleeve, the back pressure device comprises two groups of prepressing steel cables and two floating press plates, at least three steel stables are included in each group of prepressing steel cables, the two groups of prepressing steel cables are symmetrically distributed around the axis of the guide sleeve in the linear state respectively in the annular space between a rubber air spring and the guide sleeve, one ends of one group of prepressing steel cables are fixed to the floating press plate adjacent to a second end cover respectively, the other ends of the group of prepressing steel cables penetrate through the floating press plate adjacent to a driving component and are fixed to the driving component respectively, one ends of the other group of prepressing steel cables are fixed to the floating press plate adjacent to the driving component, and the other ends of the other group of prepressing steel cables penetrate through the floating press plate adjacent to the second end cover and fixed to the second end cover respectively; and the two groups of prepressing steel cables are tensioned, so that the rubber air spring is clamped between the two floating press plates all along.

Description

technical field [0001] The invention relates to a shock absorbing device, in particular to a damper using a rubber air spring. Background technique [0002] The rubber air spring is a curved capsule formed by laminating rubber and network cables. The two ends of the capsule are sealed with two steel plates to form a compressed air chamber, which uses the compressibility of the air to achieve elastic action; due to the non-linear nature of the rubber air spring characteristics, and low natural frequency, it is widely used as a vibration isolation component in some high-frequency vibration occasions, such as automobiles, high-frequency machinery and building structures. [0003] For the design of anti-seismic structures, especially the anti-seismic structures of high-rise buildings, people pursue a comprehensive anti-seismic performance that combines "resistance" and "consumption", that is, under the action of weak wind vibration and small earthquakes, the anti-seismic structu...

Claims

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Application Information

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IPC IPC(8): F16F9/04
CPCF16F9/04
Inventor 沈珊胡济福胡济全
Owner 安徽龙行密封件有限公司
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