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Electromagnetic type active vibration absorber

An electromagnetic and shock absorber technology, applied in the direction of shock absorbers, shock absorber-spring combinations, shock absorbers, etc., can solve the problem of inability to achieve low-frequency vibration and broadband vibration with good vibration reduction effect and increase the structural complexity of the shock absorber , Reduce structural reliability and other issues, to achieve the effect of increasing the effective magnetic area, improving the utilization rate of magnetic energy, and reducing energy consumption

Active Publication Date: 2017-05-10
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing active vibration absorber technology research is mainly concentrated in colleges and universities, such as the "electric active vibration absorber" disclosed in the patent document of patent application number 200810064058.7, and the "a wide-band inertial active vibration absorber" disclosed in the patent document of Vibration absorbers" all use the exciter to provide anti-phase power to the vibration-damping object, so as to achieve the effect of active vibration absorption. It can solve the principle problem of low-frequency vibration and wide-band vibration vibration damping. However, due to the selection of compression springs in its structure Or the tension spring is used as the return spring, and the guide shaft structure is used for radial positioning, which greatly increases the structural complexity of the shock absorber, makes its structural size too large, and reduces the reliability of the structure
In addition, its electromagnetic structure is composed of DC coil and AC coil, which increases the energy consumption in the working process.
Due to the above design deficiencies, it is difficult to apply the existing active vibration absorbers in actual engineering
[0005] Neither traditional passive vibration absorbers nor semi-active vibration absorbers can achieve good vibration reduction effects on low-frequency vibrations and broadband vibrations
However, most of the existing active vibration absorbers are difficult to be applied in practical engineering due to problems such as complex structure, oversized size, high energy consumption, and low reliability.

Method used

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  • Electromagnetic type active vibration absorber

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Embodiment Construction

[0022] Such as figure 1 As shown, the electromagnetic active vibration absorber of the present invention includes a permanent magnet 1, a skeleton 2, an enameled coil 13, an insulating sealing shell 4, a wiring port 3, a shaft hub 10, a push rod 11, a screw 15, a metal spring 6, a cover plate 5, Shell 12, mounting base 14, fixed end cover 7, sealing screw 9, quality block 8. According to the working principle, the structure of the electromagnetic active vibration absorber of the present invention can be roughly divided into three parts: the mover, the stator, and the installation foundation. , mass block 8; the stator part includes enameled coil 13, insulating sealing shell 4, wiring port 3, cover plate 5, shell 12; installation base includes installation base 14, fixed end cover 7, sealing screw 9.

[0023] Install two hubs 10 with central holes on both ends of the inner ring of the ring frame 2, and use magnet glue to evenly bond the tile-shaped permanent magnet 1 to the fr...

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Abstract

The invention discloses an electromagnetic type active vibration absorber which comprises two permanent magnets, a skeleton, two enamelled coils, an insulating sealing shell, a wiring port, two shaft bossings, an ejector pin, screws, two metal springs, a cover plate, a shell and a mass block; the shaft bossings are installed at the two ends of an inner ring of the annular skeleton; the permanent magnets are adhered to the periphery of the skeleton; the enamelled coils are encapsulated in the insulating sealing shell and installed in the shell; the metal springs are of a spring sheet structure with a center hole, are installed on the cover plate in a pressing manner and are installed at the two ends of the shell respectively; the lower end of the ejector pin penetrates through the two shaft bossings and the center holes of the metal springs and is fixed to the metal springs through the screws; the mass block is installed at the upper threaded end of the ejector pin; and the wiring port is adhered to the end of the insulating sealing shell so as to derive the enamelled coils out to be connected with a controller. The electromagnetic type active vibration absorber can better meet the vibration attenuation needs of low-frequency vibration and high-frequency vibration and also has the advantages of compact structure, small energy consumption, sensitiveness in respond, convenience in mounting, strong reliability and the like in engineering application.

Description

technical field [0001] The invention relates to a vibration absorber, in particular to an electromagnetic active vibration absorber. Background technique [0002] In the field of vibration control engineering, as an important means and effective measures to implement vibration control, the existing dynamic vibration absorber technology has developed into a technology including passive vibration absorber, semi-active vibration absorber and active vibration absorber. Traditional passive shock absorbers are generally additional substructures composed of mass and elastic elements. By tuning the mass and stiffness parameters of the additional substructure so that the natural frequency is consistent with the excitation frequency, the vibration energy on the main system is transferred to the additional subsystem. The passive vibration absorber is a structure with certain mass and stiffness parameters. Because its natural frequency cannot be too low and cannot be adjusted, the pass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/03F16F13/00
Inventor 肖光辉涂奉臣周常荣贺才春
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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