Composite spring damper with early rigidity capable of being adjusted

A composite spring and damper technology, which is applied in the direction of spring/shock absorber, spring/shock absorber functional characteristics, spring, etc., can solve the problems of reducing the cost of shock absorption, waste of resources, and the inability to change the initial stiffness of the damper, etc., to achieve The effect of reducing the cost of isolation and shortening the length

Active Publication Date: 2017-02-08
江苏新大同精密五金有限公司
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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 initial 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 works in...

Method used

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  • Composite spring damper with early rigidity capable of being adjusted
  • Composite spring damper with early rigidity capable of being adjusted
  • Composite spring damper with early rigidity capable of being adjusted

Examples

Experimental program
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Effect test

example 1

[0033] see figure 1, the composite spring damper in this example that can adjust the early stiffness is a kind of energy dissipation device that can be used for seismic reinforcement of building structures. It includes a guide sleeve 1, a first end cover 2 and a second The end cap 3, wherein, the first end cap 2 and the second end cap 3 are respectively fixedly connected to the two ends of the guide sleeve by screws. A composite spring 4 is arranged axially in the guide sleeve 1, and a driving member protrudes from the center of the first end cover 2 into the guide sleeve 1 and presses on the composite spring 4; wherein, the drive The component is composed of a dynamic pressure plate 5 located at the upper end of the composite spring 4 and movingly 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 on the guide sleeve 1. The outer end is provi...

example 2

[0044] see Figure 8-11 , this example has the following differences from Example 1:

[0045] Both the first group of preloaded steel cables 8 and the second group of preloaded steel cables 9 are composed of three preloaded steel cables. The number of said rigging turnbuckles 16 is reduced to six, and they are connected in series in the middle of each preloaded steel cable respectively.

[0046] The implementation method of this example except the above is the same as Example 1.

example 3

[0048] see Figures 12 to 14 , the composite spring damper capable of adjusting the early stiffness in this example is a vibration isolation device (also known as an isolation support) that can be used for vertical isolation of buildings. Compared with Example 2, this example mainly has the following differences:

[0049] 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 is omitted, and the second end cover 3 is radially extended from the edge outward, and evenly distributed at the edge A connecting bolt hole 17 is provided, and the second end cover 3 is used as the base of the shock-absorbing support. The driving rod 5-1 of the driving member is a metal tube fixedly connected to the upper surface of the dynamic pressure plate 5 by bolts, and the end of the metal tube located outside the guide sleeve 1 is provided with a connecting bracket 18, and the connecting bracket Bolt holes...

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Abstract

The invention discloses a composite spring damper with early rigidity capable of being adjusted. The composite spring damper is characterized in that a back pressure device is arranged in a guide sleeve, and the back pressure device comprises two sets of prepressing steel cables and two floating pressing plates, wherein the two sets of prepressing steel cables are symmetrically distributed in the annular space between a composite spring and the guide sleeve in a linear state about the axis of the guide sleeve, one ends of one set of prepressing steel cables are fixed to the floating pressing plate adjacent to a second end cover respectively, the other ends of the set of prepressing steel cables penetrate through the floating pressing plate adjacent to a driving component to be fixed to the driving component respectively, one ends of the other set of prepressing steel cables are fixed to the floating pressing plate adjacent to the driving component, the other ends of the set of prepressing steel cables penetrate through the floating pressing plate adjacent to the second end cover to be fixed to the second end cover respectively, the middle of each prepressing steel cable is provided with a turnbuckle for rigging in a series connection mode, the two sets of prepressing steel cables are tensioned, and therefore the composite spring is always clamped between the two floating pressing plates.

Description

technical field [0001] The present invention relates to a shock absorbing device, in particular to a damper using a composite spring. Background technique [0002] The full name of the composite spring is rubber-metal helical composite spring, which is a kind of spring formed by wrapping a layer of rubber material around the metal helical spring and compounding vulcanization. The composite spring has the nonlinear characteristics of the rubber spring, and has the characteristics of large deformation and large load-bearing capacity of the metal coil spring, and its stability and load-bearing capacity are better than those of the rubber spring. Because the composite spring has a working characteristic curve similar to that of a rubber air spring, but is simpler in structure than a rubber air spring, and has no risk of gas leakage, it is also used to replace the rubber air spring and is widely used in mining, metallurgy, coal and other large vibration equipment. It can reduce ...

Claims

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Application Information

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IPC IPC(8): F16F7/00F16F3/12E04B1/98E04H9/02
CPCE04B1/98E04H9/021F16F3/12F16F7/00F16F2228/066F16F2228/08F16F2238/026
Inventor 沈珊胡济福胡济全
Owner 江苏新大同精密五金有限公司
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