Composite spring damper capable of regulating initial stiffness
A composite spring and initial stiffness technology, which is applied in the field of damping devices containing composite springs, can solve the problems of reducing the cost of shock absorption, difficulty, waste of resources, etc., and achieve the effects of reducing the cost of shock isolation, preventing twisting, and shortening the length
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example 1
[0041] see Figure 1~6 , the damper described in this example is a vertical shock-isolation device (also known as a vertical shock-isolation support) for building anti-seismic, which includes a guide sleeve 1, a first end cover 2, a second end cover 3 , Composite spring 4 and back pressure device.
[0042] see Figure 1~3 , the guide sleeve 1 is in the shape of a circular tube, and its two ends extend radially outward to form a flange 5 . The first end cover 2 is connected to the flange 5 on the upper end of the guide sleeve 1, and a guide hole is provided in the center; the middle part of the second end cover 3 bulges upwards to form an inverted washbasin shape, and the surrounding edges are provided with Mounting hole 6, the described guide sleeve 1 is fixed on the upper surface of its protruding middle part by the flange plate 5 provided at the lower end.
[0043] see Figure 1~3 , the driving member is composed of a dynamic pressure plate 7 and an upper connecting plate...
example 2
[0063] see Figures 12 to 16 , the damper described in this example is also a vertical shock-isolation device for building anti-seismic, and on the basis of example 1, the following improvements are mainly made: (1) the pre-compressed steel wire rope 9 is increased by three to four; (2) replace the eyebolt 10 as the steel wire rope reversing element with a U-shaped member 17; (3) increase the steel wire rope self-locking tensioning anchor 16 at the other end of the fixed preloaded steel wire rope 9 to four; ( 4) correspondingly change the described back pressure device into:
[0064] The anti-pressure device consists of four pre-compressed steel wire ropes 9, four U-shaped members 17 as wire rope direction-changing elements, a floating counter-pressure steel plate 11, four eyebolts 10 for fixing one end of the pre-compressed steel wire rope 9 and four The other end of the fixed preloaded steel wire rope 9 is composed of a steel wire rope self-locking tensioning anchorage 16; ...
example 3
[0071] see Figures 17-21 , this example is a damper used for seismic reinforcement of building structures, the damper includes a guide sleeve 1, the two ends of the guide sleeve 1 are respectively fixed with a first end cover 2 and a second end cover 3, and a composite spring is arranged inside 4. A drive member extends from the center of the first end cover 2 at one end of the guide sleeve into the guide sleeve 1 and presses on the composite spring 4; wherein the drive member is composed of a dynamic pressure plate 7 and an integrated The first drive rod 18 is formed, the end of the first drive rod 18 is provided with a connecting ring 18-1 threadedly butted together, the connecting ring 18-1 is provided with a hinge hole 19, and the dynamic pressure plate 7 It is dynamically matched with the guide sleeve. The outer diameter of the composite spring 4 is smaller than the inner diameter of the guide sleeve 1, forming an annular space between the two.
[0072] see Figure 17...
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Abstract
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