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A vertically tuned mass ball screw type inertial eddy current damper

A technology of eddy current damper and ball screw, which is applied in the field of structural vibration reduction, can solve the problems of magnetic flux leakage of eddy current damper, etc., and achieve the effect of improving equivalent vibration quality, improving durability and reducing cost

Active Publication Date: 2021-09-24
湖南省潇振工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the device does not solve the magnetic flux leakage problem of the eddy current damper

Method used

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  • A vertically tuned mass ball screw type inertial eddy current damper
  • A vertically tuned mass ball screw type inertial eddy current damper

Examples

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Embodiment Construction

[0041] This embodiment discloses a vertically tuned mass ball screw type inertial eddy current damper, such as figure 1 and figure 2 As shown, the support frame 12 divides the outer frame 8 into two layers; The top and bottom surfaces of the lower layer are affixed. The mass block 3 is slidably sleeved on the guide rod 7; the free end of the spring 6 is fixedly connected to the mass block 3, and the fixed end of the spring 6 is connected to the support frame 12 or the outer frame 8 fixed connection. The iron plate 4 is attached to the inner wall surface of the upper or lower layer where the mass block 3 is located; the conductor plate 2 is attached to the surface of the iron plate 4; the permanent magnet 1 is arranged on the mass The vertical side of the block 3, and there is a set gap between the permanent magnet 1 and the conductor plate 2. The ball screw 5 is vertically arranged, and the fixed end is affixed to the geometric center of the mass block 3, and the mass blo...

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Abstract

The invention provides a vertically tuned mass ball screw type inertial eddy current damper, which includes an outer frame, a vertically arranged guide rod, a support frame, a mass block, a spring, a permanent magnet, a conductor plate and an iron plate, and a permanent magnet There is a set gap between the conductor plate and the damper; the damper also includes a vertically arranged ball screw, a nut, a flywheel and a thrust bearing. When the vibration energy of the controlled structure is transmitted to the damper, the mass block vibrates up and down, and the flywheel is driven to rotate at a high speed through the ball screw, and the conductor plate cuts the magnetic induction line of the permanent magnet, forming an eddy current damping effect; and the back iron can Reduce magnetic flux leakage and improve damping energy consumption efficiency. The gap between the permanent magnet and the conductor plate of the present invention remains unchanged during the movement of the mass block, so the distance between the two can be set very small, which can generate a large damping force; in the present invention, the mass block moves linearly, The damping force has no torque on the mass block, does not increase the pressure between the mass block and the guide rod, and the movement is relatively smooth.

Description

technical field [0001] The invention belongs to the technical field of structural vibration reduction, and in particular relates to a vertically tuned mass ball screw type inertial current eddy current damper. Background technique [0002] Tuned mass dampers are widely used in the field of vibration reduction of bridges, high-rise buildings and other engineering structures. It has been proved by theory and practice that tuned mass dampers have a good effect on the control of structural vibration, but the traditional vertical tuned mass damper There are two problems in the device, one is the durability problem, and the other is the spring static elongation problem. Facing the needs of rapid social development, it is necessary to solve the above-mentioned problems of the tuned mass damper and to optimize and improve it. [0003] The eddy current damping technology has the characteristics of non-contact and good controllability, and can solve the durability problem. It has bee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F6/00F16F15/30F16F15/28F16F15/10E04B1/98E04H9/02
CPCE04H9/02F16F6/00F16F15/10F16F15/28F16F15/30F16F2222/06
Inventor 封周权陈政清陈智刘易华旭刚牛华伟
Owner 湖南省潇振工程科技有限公司
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