Eddy current damper with axial double-reed structure

Abstract

The invention provides an eddy current damper with an axial double-reed structure. The eddy current damper comprises a permanent magnet, wherein the permanent magnet is mounted in a housing; a coil is mounted and fixed on a bracket around the permanent magnet and moves relative to the housing in the axial direction to form a main eddy current; and a damping coefficient adjusting device is arranged on the housing and electrically connected with a series coil. The eddy current damper can adapt to vibration with different frequencies and amplitudes generated by influence of other factors in precision equipment, and the optimal shock insulation effect is achieved; a lead-out wire in a copper coil is led out to a damping coefficient adjusting module outside the housing, so that the damping coefficient is adjusted quickly; the eddy current damper has the advantages of high radial rigidity and low axial rigidity, and different overall rigidity can be obtained by adjusting the thickness and the shape of reeds; a special locking mechanism is designed between a front end cover and a shaft, so that the reliability of a non-working state is guaranteed; and based on limiting mechanisms such as a base, the front end cover and a movable shaft, the effective working range is guaranteed.

Description

Technical field [0001] The present invention relates to a dual spring structures axially eddy current damper. Background technique [0002] Eddy current damper as a passive type vibration control device, no external energy, and no conventional mechanical friction damper, isolator device moves together with the damping-force structure, simple means, to achieve easy, stable with good damping , high energy efficiency, durability and smoother movement, has been widely used in engineering fields, gradually applied in the field of aerospace; [0003] In precision instruments and equipment, the micro vibration can affect the quality of the optical imaging sensitive loads, cause it not to work, but we can not analyze and accurately predict the true source of the disturbance micro vibration. Inventive content [0004] To solve the above problems, the present invention provides a dual spring structures axially eddy current damper, the axial dual spring structures eddy current dampers can ...

AI Technical Summary

Problems solved by technology

[0003] In precision instruments and equipment, microvibrations will affect the imaging quality of optically sensitive loads, causing them to fail to work properly. However, we cannot analyze and accurately predict the real disturbance source of microvibrations

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