Controllable type permanent magnetism magnetic suspension vibration damping spring with air damping cavity

An air damping and vibration damping spring technology, applied in the directions of magnetic springs, springs, springs/shock absorbers, etc., can solve the problems of limited vibration damping effect and inability to adjust characteristics of objects, and achieve the effect of improving control performance

Inactive Publication Date: 2008-12-17
JIAXING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the spring is in direct contact with the support, the damping effect on the object is limited
Moreover, since the i

Method used

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  • Controllable type permanent magnetism magnetic suspension vibration damping spring with air damping cavity
  • Controllable type permanent magnetism magnetic suspension vibration damping spring with air damping cavity
  • Controllable type permanent magnetism magnetic suspension vibration damping spring with air damping cavity

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Embodiment Construction

[0029] see figure 1 , figure 2 , the controllable permanent magnet maglev damping spring with an air damping chamber of the present invention includes a base 1, a support shaft 2, a casing 3, a mover 4, a stator 5, a stator excitation winding 6, and an electromagnetic controller 7;

[0030] The base 1 has a cylindrical structure, and a cavity is opened in the center as a damping air cavity 100, and an air inlet 101 is opened at the bottom, and a sealing sheet 8 is fixed and sealed with a fixing screw 9; a support shaft 2, whose outer diameter is the same as that of the base 1 The inner diameter of the damping air cavity 100 matches, one end of which is inserted into the base damping air cavity 100, and the end is provided with a sealing ring 16;

[0031] The casing 3 is fixed on the base 1 and includes a bottom plate 31, a casing 32 and an end cover 33; a through hole is opened in the center of the bottom plate 31 and the end cover 33, and bearings 15 and 15' are respectivel...

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Abstract

The invention relates to a controllable permanent magnet magnetic suspension damping spring with an air damping chamber. The damping spring comprises a pedestal, a support shaft, an casing, a rotor, a displacement sensor, a stator, a stator excitation winding and an electromagnetic controller, wherein, the pedestal has a cylindrical structure; a chamber is formed in the centre of the pedestal and used as the air damping chamber; one end of the supporting shaft is inserted in the air damping chamber; the casing is fixed to the pedestal; the rotor is arranged on the support shaft; a guide rod is arranged on the rotor; a pore path is formed on the pedestal; the displacement sensor is arranged at the port of the pore path of the pedestal and corresponds to the guide rod; the stator is arranged outside the rotor; a gap is kept between the rotor and the stator and filled with ferromagnetic material powder; the stator excitation winding is arranged on the stator; and the electromagnetic controller is electrically connected with the displacement sensor and the stator excitation winding respectively to form a closed loop control system. In the controllable permanent magnet magnetic suspension damping spring, magnetic attraction is used as elasticity, and the spring body and the damping chamber are integrated, so that the vibration damping effect is obviously improved. At the same time, the magnetic attraction, namely magnetic suspension force adopts the combination of permanent magnetic attraction and electromagnetic force, so that the magnetic suspension force can be effectively controlled according the difference of the loading, thereby improving the elasticity property of the spring.

Description

technical field [0001] The invention relates to a spring, in particular to a controllable permanent magnetic levitation vibration damping spring with an air damping cavity which adopts a permanent magnetic force plus a controllable electromagnetic force structure for vibration reduction. Background technique [0002] Known springs are generally made of spring steel wires, and are installed under an object to provide elastic support for the object. For occasions with high requirements for vibration reduction, a spring oiling chamber vibration damping pad is used. However, since the spring is in direct contact with the support, the damping effect on the object is limited. Furthermore, since the inherent characteristics of the spring are fixed, the characteristics cannot be adjusted according to the change of the applied load. [0003] The present invention uses the magnetic attraction force to form a spring, and the supporting object is placed in a magnetic levitation state t...

Claims

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Application Information

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IPC IPC(8): F16F6/00
Inventor 冯浩曹文明丁立军
Owner JIAXING UNIV
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