Magnetic lead screw type axial eddy current damper

An eddy current damper and eddy current damping technology, which is applied in the directions of magnetic springs, springs/shock absorbers, springs, etc., can solve problems such as fading and blocking lubricating oil effects

Active Publication Date: 2021-05-28
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

[0004] The purpose of the present invention is to: in the existing eddy current axial damper, when the limit speed of the mechanical ball screw pair is greater than 70000, it is easy to get stuck and the effect of the lubricating oil in the ball screw pair in a low temperature environment reduce the problem, providing a non-contact magnetic screw type axial eddy current damper

Method used

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  • Magnetic lead screw type axial eddy current damper
  • Magnetic lead screw type axial eddy current damper
  • Magnetic lead screw type axial eddy current damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 1-Figure 3 As shown, a magnetic screw type eddy current axial damper according to the present invention includes:

[0050] A magnetic screw 1 and a magnetic nut 2 adapted thereto;

[0051] The inner guide pipe 14 made of steel or other materials is arranged on the inner side of the steel pipe used for the magnetic screw 1, and an oil-free bushing is arranged between the magnetic screw 1 and the inner guide pipe 14, and the oil-free bush is used for Reduce the friction between the magnetic screw 1 and the inner guide tube 14;

[0052] A connecting nut 15 made of steel or other materials is arranged between the magnetic nut 2 and the inner support tube 17;

[0053] The outer support tube 10 and the inner support tube 17 made of magnetically conductive material can be connected with the end 21;

[0054] End 21 made of steel or other materials;

[0055] A plurality of first magnets 5 and third magnets 11 are provided on the periphery of the magnetic nut ...

Embodiment 2

[0067] Such as Figure 4 Shown, a kind of magnetic screw type electric eddy current axial damper described in the present invention, and embodiment 1 image 3 The difference is that the magnetic nut 2 of the magnetic screw type eddy current axial damper is connected to the outer support tube 10 through the ball bearing one 6 and the ball bearing four 31; the magnetic screw 1 is connected to the magnetic nut through the screw bearing one 3 2 are connected, the magnetic screw rod 1 is connected to the outer support tube 10 through the screw bearing three 30, the outer support tube bearing sleeve two 32, and the outer support tube bearing sleeve three 33 are all connected to the inner wall of the outer support tube 10 by threads, so The second magnetic nut bearing sleeve 34 and the third magnetic nut bearing sleeve 35 are all connected to the outer wall of the magnetic nut 2 by threads.

[0068] With this structural setting, when the damper needs to achieve a large stroke but th...

Embodiment 3

[0070] Generally speaking, the structural types among the magnetic screw, magnetic nut and damping device in Embodiment 1 and Embodiment 2 are basically divided into the following types:

[0071] 1. The magnetic screw 1 and the magnetic nut 2 are connected through the screw bearing 1 and the screw bearing 2 13 at both ends of the magnetic nut, and the magnetic nut and the damping device are connected to the connecting nut 15 through the angular contact bearing 6 and the angular contact bearing 12 at the same time. Specific as figure 1 :

[0072] 2. The magnetic screw 1 and the magnetic nut 2 are connected with the screw bearing 1 and the screw bearing 2 13 at both ends of the magnetic nut, and the magnetic nut and the damping device are connected with the connecting nut 15 through at least one angular contact bearing 12, specifically as figure 2 :

[0073] 3. The magnetic screw 1 and the magnetic nut 2 are connected through the screw bearing one 3 and the screw bearing two ...

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Abstract

The invention relates to the field of damping devices, in particular to a magnetic lead screw type axial eddy current damper. The damper comprises an end, an eddy current damping assembly, a magnetic screw and a magnetic nut in running fit with the magnetic screw, and the end is in running fit with the magnetic nut. The eddy current damping assembly can be driven to conduct damping motion through mutual rotation between the magnetic screw and the magnetic nut, the end, away from the end, of the magnetic screw is used for being connected with one of two relative vibration points of a controlled structure, and the end is used for being connected with the other point of the two relative vibration points of the controlled structure. According to the magnetic lead screw type axial eddy current damper, the limit rotating speed of a motion conversion and amplification mechanism composed of the magnetic screw and the magnetic nut is basically not limited in a macroscopic range, and therefore the problem of the limit rotating speed does not exist theoretically. In addition, a magnetic field is not affected by temperature reduction, and the magnetic lead screw type axial eddy current damper can be continuously used in special low-temperature environments such as space.

Description

technical field [0001] The invention relates to the field of damping devices, in particular to a magnetic screw type axial eddy current damper. Background technique [0002] The basic principle of eddy current damping is: when the conductor plate in the local magnetic field cuts the magnetic force line, an eddy current will be generated in the conductor plate, and the eddy current will generate a new magnetic field opposite to the direction of the original magnetic field, thus creating a gap between the original magnetic field and the conductor. It forms a damping force that hinders the relative movement of the two, and at the same time, the resistance effect of the conductor plate converts the kinetic energy obtained by the conductor plate into heat energy and dissipates it through eddy currents. If the conductor plate is connected with the vibrating structure, it can produce the effect of structural vibration reduction and energy consumption, and become an eddy current dam...

Claims

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Application Information

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IPC IPC(8): F16F6/00
CPCF16F6/00
Inventor 封周权陈政清王帅华旭刚牛华伟陈谨林张弘毅
Owner 湖南省潇振工程科技有限公司
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