Disc-shaped spring damper with rigidity capable of being preset

A kind of butterfly spring and damper technology, which is applied to building components, building types, shockproof, etc., can solve the problems of inability to stretch, consume energy and reduce vibration, shorten the effective working length of springs, etc. Effect

Pending Publication Date: 2017-02-22
NANJING DADE DAMPING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that although the stiffness of the spring in the patent application scheme can be changed, the effective working length of the spring is not only significantly shortened, but also can only be compressed for energy consumption and vibration reduction, and cannot be stretched for energy consumption and vibration reduction.

Method used

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  • Disc-shaped spring damper with rigidity capable of being preset
  • Disc-shaped spring damper with rigidity capable of being preset
  • Disc-shaped spring damper with rigidity capable of being preset

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] see Figure 1~3 , this example is a damper used for seismic reinforcement of building structures. The damper includes a disc-shaped upper end plate 1 and a lower end plate 2. A disc spring group 3 is arranged between the upper and lower end plates, wherein the lower end plate 2 is A guide rod 4 is provided, and the guide rod 4 passes through the upper end plate 1 upwardly along the center hole of the disc spring group 3; the disc spring group 3 is composed of sixteen disc springs stacked together.

[0038] see Figure 1~4 , There is also a back pressure device between the upper and lower end plates, and the back pressure device includes four preloaded steel wire ropes 5, four eyebolts 6 as wire rope direction changing elements and a floating back pressure steel plate 7.

[0039] see figure 1 , image 3 and Figure 4 , The floating anti-pressure steel plate 7 is sleeved on the guide rod 4 between the disc spring group 3 and the lower end plate 2 .

[0040] see fi...

example 2

[0047] This example is also a damper used for anti-seismic reinforcement of building structures. The main difference between this damper and the damped vibrator described in Example 1 is that the back pressure device is different. The counter pressure device of this example will be described below.

[0048] see Figure 5-10 , the back pressure device in this example is located between the upper end plate 1 and the lower end plate 2, and the back pressure device includes four preloaded steel wire ropes 5, four U-shaped members 12 as steel wire rope direction changing elements and a floating back pressure steel plate 7 .

[0049] see Figure 5 , Image 6 and Figure 9 , The floating anti-pressure steel plate 7 is sleeved on the guide rod 4 between the disc spring group 3 and the upper end plate 1 .

[0050] see Figure 5 , Figure 7 and Figure 8 , four U-shaped components 12 as wire rope redirection elements are welded and fixed on the lower end plate 2 symmetrically ar...

example 3

[0057] see Figures 11-15 , the damper described in this example is a kind of vertical shock-isolation device (also called vertical shock-isolation support) for building anti-seismic, it comprises disc-shaped upper end plate 1 and lower end plate 2, upper and lower end plate A disc spring group 3 is arranged between them, wherein the upper end plate 1 is provided with a guide rod 4, and the guide rod 4 penetrates the lower end plate 2 upwardly along the center hole of the disc spring group 3; the disc spring group 3 is formed by Sixteen disc springs are stacked together.

[0058] see Figure 11 , the edges around the upper end plate 1 and the lower end plate 2 are respectively provided with six installation holes 14, wherein the lower end plate 2 is an upside-down washbasin shape formed by the middle part upwards, and the center is provided with a hole matching the guide rod 4.

[0059] see Figures 11-15 , A back pressure device is provided between the upper and lower end ...

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Abstract

The invention relates to a disc-shaped spring damper with the rigidity capable of being preset. The disc-shaped spring damper is characterized in that a back pressure device is arranged between two end plates and comprises more than three prepressing steel wire ropes, steel wire rope direction changing elements of which the quantity is equal to that of the prepressing steel wire ropes and a floating back pressure steel plate, wherein the prepressing steel wire ropes are distributed around a disc-shaped spring set in a broken line mode, one ends of the prepressing steel wire ropes are symmetrically fixed to the floating back pressure steel plate around the axis of a guiding rod, and the other ends of the prepressing steel wire ropes bypass the corresponding steel wire rope direction changing elements in a penetrating mode, turn back and then penetrate through the floating back pressure steel plate from the positions beside fixing points of the prepressing steel wire ropes on the floating back pressure steel plate to be fixed to the end plate adjacent to the floating back pressure steel plate; the prepressing steel wire ropes are tensioned till the tension needed by the initial rigidity is achieved, so that the disc-shaped spring set is always clamped between the end plate far away from the floating back pressure steel plate and the floating back pressure steel plate.

Description

technical field [0001] The invention relates to a building anti-vibration (or vibration) device, in particular to a damping device of a butterfly spring. Background technique [0002] A damper is a device that provides resistance to movement and consumes movement energy. Since the 1970s, dampers have been gradually transferred from industries such as aerospace, aviation, military, guns, and automobiles to structural engineering such as buildings, bridges, and railways. Disc springs (also known as disc springs) are widely used in devices such as shock isolation and shock absorption due to their variable stiffness characteristics in which the relationship between load and deformation is nonlinear. A compression spring of a disc spring, which can usually be used alone or stacked together. However, many Belleville springs stacked together can only work in a compressed state. Therefore, existing dampers for wind resistance and earthquake resistance must use at least two sets o...

Claims

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Application Information

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IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021
Inventor 谢韩涛刘汶津韩磊张少华
Owner NANJING DADE DAMPING TECH CO LTD
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