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Magneto-rheological adjustable stiffness coil spring

A helical spring and magneto-rheological technology, applied in the field of helical springs, can solve the problem that the characteristic curve cannot be changed at any time

Inactive Publication Date: 2011-12-21
CHONGQING MATERIALS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings that the characteristic curve of the ordinary helical spring is fixed once the production is completed and the characteristic curve cannot be changed at any time during operation, the present invention proposes a new type of helical spring, namely: a magneto-rheological adjustable stiffness helical spring

Method used

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  • Magneto-rheological adjustable stiffness coil spring
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  • Magneto-rheological adjustable stiffness coil spring

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Embodiment Construction

[0013] The structure of the present invention is described in detail below in conjunction with accompanying drawing:

[0014] see figure 1 , figure 2 , image 3 , which is a specific structure of the present invention, the magnetorheological adjustable stiffness helical spring includes a helical spring 1 and a ring-shaped external electromagnet 2, and the reed wire of the helical spring 1 is made of a nonmagnetic polymer elastic material The hollow tube 5 is composed of a magneto-rheological fluid or magneto-rheological grease 4. The outer diameter of the coil spring 1 is smaller than the inner diameter of the ring-shaped external electromagnet 2 and a gap 3 is left. The coil spring 1 is placed In the annular external electromagnet 2 , the hollow tube 5 constituting the spring wire of the helical spring 1 is a non-magnetic conductive polymer elastic material, and the annular external electromagnet 2 is connected to the control power supply 5 through a lead wire 6 .

[0015...

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Abstract

The invention discloses a magneto-rheological adjustable stiffness helical spring, which comprises a helical spring and a ring-shaped external electromagnet or a column-shaped internal electromagnet. Rheological fluid or magnetorheological grease, the outer diameter of the coil spring is smaller than the inner diameter of the ring-shaped external electromagnet and there is a gap, the coil spring is placed in the ring-shaped external electromagnet or the inner diameter of the coil spring is larger than the cylindrical built-in electromagnet The outer diameter of the coil spring has a gap, and the cylindrical built-in electromagnet is placed in the coil spring. The hollow tube of the coil spring wire is a non-magnetic elastic material, which is input to the ring-shaped external electromagnet or the column-shaped built-in electromagnet through adjustment. The magnitude of the current in the magneto-rheological adjustable stiffness coil spring can be adjusted, so that the stiffness of the magnetorheological adjustable stiffness coil spring can be adjusted at any time.

Description

technical field [0001] The invention belongs to a coil spring, in particular to a magneto-rheological adjustable stiffness coil spring. Background technique [0002] Ordinary coil springs can be divided into constant stiffness coil springs and variable stiffness coil springs according to stiffness. The stiffness of these two types of coil springs is predetermined in design. As long as the coil springs are manufactured, their characteristic curves are fixed, and the stiffness or characteristic curves of ordinary coil springs cannot be changed at any time during work. Contents of the invention [0003] Aiming at the disadvantages that the characteristic curve of the ordinary helical spring is fixed once it is manufactured and the characteristic curve cannot be changed at any time during operation, the present invention proposes a new type of helical spring, that is, a magneto-rheological adjustable stiffness helical spring. [0004] Technical scheme of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F6/00
Inventor 谭和平
Owner CHONGQING MATERIALS RES INST
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