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Rub-impact damping protection device for high-speed rotary machine

A protection device and high-speed rotation technology, which is applied in the field of mechanical parts, can solve the problems of limited rubbing and vibration reduction and weak damping effect, and achieve strong damping effect, increased friction and low cost

Inactive Publication Date: 2017-07-04
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rolling bearings can play a limiting role and can solve the wear problem, but due to the weak damping effect, the effect on frictional vibration reduction is very limited

Method used

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  • Rub-impact damping protection device for high-speed rotary machine
  • Rub-impact damping protection device for high-speed rotary machine

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Embodiment Construction

[0021] The present invention is a rubbing and damping protection device for high-speed rotating machines, which includes an upper cover plate 7, a lower cover plate 1, a casing 4 (or a corrugated ring), a slider 9, a rubbing ball head 8 and a metal rubber ring 3 . Both the shell 4 and the slider 9 are annular bodies. The middle part of the upper cover plate 7 is provided with an upper through hole 7-1, and the middle part of the lower cover plate 1 is provided with a lower through hole 1-1. Both the upper through hole 7-1 and the lower through hole 1-1 are circular holes. The rubbing ball head 8 is preferably made of bronze, graphite or polytetrafluoroethylene. The shell 4, the slider 9, the upper through hole 7-1 and the lower through hole 1-1 are coaxial. The upper end of the shell 4 is fixedly connected with the upper cover 7 , and the lower end of the shell 4 is fixedly connected with the lower cover 1 . There are many ways to fix the connection, such as bolt connectio...

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PUM

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Abstract

The invention relates to a rub-impact damping protection device for a high-speed rotary machine. The device is of a cylindrical structure, and comprises an upper cover plate (7), a lower cover plate (1), a shell (4), a sliding block (9), a rub-impact ball head (8) and a metal rubber ring (3); and the metal rubber ring (3), the shell (4) and the sliding block (9) are all ring bodies, an upper through hole (7-1) is formed in the middle portion of the upper cover plate (7), a lower through hole (1-1) is formed in the middle portion of the lower cover plate (1), and the shell (4), the sliding block (9), the upper through hole (11) and the lower through hole (12) are coaxial. By means of the device, while the limiting effect on rotation of a rotor is achieved, the performance of the high damping effect is achieved, and the running safety of a rotor system is better improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical parts and relates to a rubbing and damping protection device for high-speed rotating machinery. Background technique [0002] In recent years, with the rapid development of nuclear industry, aviation industry, electric power industry, shipbuilding industry, petrochemical and other fields, various rotating machinery, such as centrifuges, turbines, and energy storage flywheels, are developing towards high speed and high power-to-weight ratio. During the operation of the rotor system, when the rotor is affected by external excitation, the vibration of the rotor exceeds the standard or the phenomenon of motion instability occurs from time to time. If it is not controlled, it will easily cause catastrophic accidents. At present, in order to avoid excessive vibration of the rotor or unstable movement, one method adopted is to introduce a friction protection device into the rotor system. Friction pro...

Claims

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Application Information

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IPC IPC(8): F16F15/129
CPCF16F15/129
Inventor 蒋书运邱玉江
Owner SOUTHEAST UNIV