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High-vacuum high-speed rotary friction testing machine magnetic transmission device

A technology of high-speed rotation and magnetic transmission, applied in the direction of mechanical devices, measuring devices, testing wear resistance, etc., can solve problems such as difficult to meet high sealing and high-speed transmission at the same time, inconvenient speed adjustment, and difference in speed between inner and outer rotors. Achieve the effects of simple structure, easy maintenance and improved transmission torque

Active Publication Date: 2018-02-02
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: it is difficult to meet the requirements of high sealing and high-speed transmission at the same time for the existing magnetic transmission device using magnetic coupling in high vacuum state; Inconvenient, inaccurate speed control

Method used

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  • High-vacuum high-speed rotary friction testing machine magnetic transmission device

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, this embodiment provides a magnetic transmission device for a high-vacuum high-speed rotary friction and wear testing machine, which includes an outer driving shaft 1, an inner driven shaft 13 and a quartz isolation component 4, and also includes an outer permanent magnet fixing seat 2, an outer Permanent magnet 3, end cover 5, gasket 6, vacuum chamber base 7, bearing bracket 8, rolling bearing 9, turntable 10, friction sample 11, loading rod 12, inner permanent magnet fixing seat 14 and inner permanent magnet 15, the concave The outer permanent magnet 3 is fixed on the outer permanent magnet holder 2, the outer permanent magnet holder 2 is fixed on the outer drive shaft 1, the outer drive shaft 1 is connected to the power motor shaft, and the convex inner permanent magnet 15 is fixed on the inner permanent mag...

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Abstract

The invention relates to a high-vacuum high-speed rotating magnetic transmission device of a friction testing machine. The high-vacuum high-speed rotating magnetic transmission device comprises an outer driving shaft, an inner driven shaft, an inner permanent magnet, an inner permanent magnet fixing seat, an outer permanent magnet, an outer permanent magnet fixing seat, a rotating disc, a bearing support, a quartz separation component and a loading rod. The inner permanent magnet fixing seat is fixed to the lower portion of the inner driven shaft, and the inner permanent magnet is fixed to the lower portion of the inner permanent magnet fixing seat. The outer permanent magnet is opposite to the inner permanent magnet and fixed to the upper portion of the outer permanent magnet fixing seat, the outer permanent magnet fixing seat an the outer driving shaft are fixedly connected, and the inner permanent magnet and the outer permanent magnet are separated through the profiled quartz separation component. The quartz separation component and the bearing support cooperate to seal the inner driven shaft, the inner permanent magnet fixing seat and the inner permanent magnet in a sealed vacuum space. The outer driving shaft and the inner driven shaft are coaxially arranged. The rotating disc and the upper portion of the inner driven shaft are fixedly connected in a sealed mode. The loading rod is arranged above the rotating disc, and a friction test piece on the loading rod makes contact with the rotating disc.

Description

technical field [0001] The present invention relates to an electromechanical transmission device, that is, an electromechanical device for transferring mechanical energy from a driving shaft to another driven shaft, in particular, a magnetic transmission device for a high-vacuum high-speed rotating friction and wear tester. Background technique [0002] In the friction experiment under the simulated aerospace environment, it is necessary to ensure the high vacuum state of the experimental environment, and at the same time, the coupling is required for power transmission. The existing dynamic sealing method cannot meet the requirements of high sealing and high speed transmission at the same time. [0003] At present, the transmission under high vacuum conditions mainly includes magnetic fluid seal transmission and magnetic coupling transmission. [0004] The Chinese patent document with application number 201510388698.3 and publication number CN104948744A discloses a magnetic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/00G01N3/56
CPCG01N3/56G01N19/00G01N2203/0037
Inventor 张执南李帮俊马志宏刘成良
Owner SHANGHAI JIAOTONG UNIV
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