Disk spring damper with presettable early rigidity

A disc spring and damper technology, applied in the direction of spring/shock absorber, leaf spring, shock absorber, etc., can solve the problems of increased damper length, disc spring deformation, waste, etc., to shorten the length and prevent resonance , The effect of reducing the cost of seismic isolation

Inactive Publication Date: 2017-02-08
重庆瞻远新力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The load connecting rod is kept balanced under the joint action of two sets of disc springs. Although the pre-tightening force of the two sets of disc springs can be adjusted, no matter how it is adjusted, the force of the two sets of disc springs on the load connecting rod will The acting forces are a set of equal and opposite forces, and simply applying any external force on the load connecting rod will break this balance and deform the two sets of disc springs, so the damper described cannot preset the early stiffness ;
[0007] 2. The damping coefficient of the disc spring is changed by preloading two sets of disc springs. This change is very limited, which leads to a small adjustment range of the equivalent stiffness of

Method used

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  • Disk spring damper with presettable early rigidity
  • Disk spring damper with presettable early rigidity
  • Disk spring damper with presettable early rigidity

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0038] see figure 1 , the disc spring damper with preset early stiffness in this example is a kind of energy dissipation device that can be used for seismic reinforcement of building structures, and it includes guide sleeve 1, first end cap 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. The guide sleeve 1 is provided with a disc spring group 4 along the axial direction, and a driving member extends into the guide sleeve 1 from the center of the first end cover 2; wherein, the disc spring group 4 consists of 16 pieces Disc springs are vertically superimposed in pairs; the driving member is composed of a dynamic pressure plate 5 located at the upper end of the disc spring group 4 and movably matched with the guide sleeve 1, and a guide sleeve 1 extending upward from the upper surface of the dynamic pressure plate 5 The driving rod 5-1 is composed of a conn...

example 2

[0046] This example has the following differences from Example 1:

[0047] see Figure 7-9 , the first group of preloaded steel cables 8 and the second group of preloaded steel cables 9 are composed of four preloaded steel cables. Moreover, the distance between the first group of preloaded steel cables 8 and the axis of the guide sleeve is greater than the distance between the second group of preloaded steel cables 9 and the axis of the guide sleeve.

[0048] see Figure 7-13 , 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 fixed on the dynamic pressure plate 5 and the second set of steel cables 9 by using steel cable self-locking anchors 15 instead of the eyebolts in Example 1. On the two end caps 3.

[0049] see Figures 14 to 16 , and combined with Figure 7 , the cable self-locking anchor 15 is composed of a mounting hole provided on the mounting plate 15-1, a jaw 15-2 and a locking ...

example 3

[0053] see Figures 17-19 , the disc spring damper with preset early stiffness 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 features the difference:

[0054] 1. As a vibration-isolation support, in order to facilitate installation, in this example, the connecting lug plate provided on the second end cover 3 in Example 1 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 16 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 15 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 driving mem...

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Abstract

The invention discloses a disk spring damper with presettable early rigidity. The disk spring damper with presettable early rigidity is characterized in that a back pressure device is also arranged in a guide sleeve and is composed of two groups of preloading steel ropes, each group of which is composed of at least three preloading steel ropes, and two floating pressure plates, wherein the two groups of preloading steel ropes are symmetrically distributed in center holes of a disk spring group respectively around the axis of the guide sleeve in a straight line state; in addition, one ends of one group of the preloading steel ropes are fixed on the floating pressure plate adjacent to a drive component respectively, and the other ends penetrate through the floating pressure plate adjacent to a second end cover respectively and are fixed on the second end cover; one ends of the other group of the preloading steel ropes are fixed on the floating pressure plate adjacent to the second end cover respectively, and the ends penetrate through the floating pressure plate adjacent to the drive component respectively and are fixed on the drive component; and the two groups of preloading steel ropes are tensioned to clamp the disk spring group between the two floating pressure plates always.

Description

technical field [0001] The present invention relates to shock absorbing devices, and in particular to dampers using disc spring sets. Background technique [0002] A damper is a shock-absorbing device that consumes motion energy by providing motion resistance. The use of dampers to absorb shock is a traditional technology widely used in industries such as aerospace, aviation, military industry, guns and automobiles. Since the 1970s, people have gradually applied the technology of using dampers to absorb and absorb shocks in structural engineering such as buildings, bridges, and railways. Disc spring dampers are widely used in various building anti-seismic structures due to their high impact resistance, low cost and good shock absorption effect. [0003] People pursue a comprehensive anti-seismic performance that combines "resistance" and "consumption" for the design of buildings, especially high-rise buildings, that is, under the action of weak wind vibration and small ear...

Claims

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Application Information

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IPC IPC(8): F16F7/00F16F1/26E04B1/98E04H9/02
CPCE04B1/98E04H9/021F16F1/26F16F7/00
Inventor 沈珊胡济福胡济全
Owner 重庆瞻远新力科技有限公司
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