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Hoisting type universal rotor critical rotating speed testing device

A critical speed and testing device technology, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve problems such as damage to rotor dynamic balance and increased eccentricity error

Pending Publication Date: 2022-02-08
上海电动工具研究所(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the rotor has irreversible mechanical damage, it will cause further eccentricity error and destroy the dynamic balance of the rotor itself. dangerous accident

Method used

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  • Hoisting type universal rotor critical rotating speed testing device
  • Hoisting type universal rotor critical rotating speed testing device
  • Hoisting type universal rotor critical rotating speed testing device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 , as shown in 2, the hoisting universal type rotor critical speed test device of the present invention consists of a high-speed motor 1, an upper flexible connecting plate 2, a lower flexible connecting plate 3, a high-speed bearing 4, a circumferential vibration damper 5, a flexible connecting rope 6, Coupling 7, bearing seat 8, vibration sensor 9, flange support 10, equipment support 11, and experimental rotor 12 are composed.

[0020] The high-speed motor 1 and the upper flexible connection plate 2 are fixedly connected by threads, and the lower flexible connection plate 3 and the shaft coupling 7 are fixedly connected by threads. The rope 6 is connected and fixed, the coupling 7 is installed in the inner ring of the high-speed bearing 4, the outer ring of the high-speed bearing 4 is installed in the bearing seat 8, and the b...

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PUM

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Abstract

The invention relates to a hoisting type universal rotor critical rotating speed testing device which comprises a high-speed motor, a coupler, a bearing pedesatl, a flange support and an equipment support. An output shaft of the high-speed motor is connected with the coupler through a flexible connecting disc structure, and the coupler is installed in the bearing pedestal through a high-speed bearing; the bearing pedestal is connected with the flange support through a circumferential vibration damper, and the flange support is fixed on the equipment support. According to the invention, by adopting the flexible connecting disc and the circumferential vibration damper structure, strong vibration generated by the rotor at the critical rotating speed can be overcome during an overspeed experiment, so that the mechanical safety performance of the rotor after passing through the critical rotating speed can be tested.

Description

technical field [0001] The invention relates to a hoisting universal rotor speed test device, especially a device for measuring and researching the mechanical performance of the rotor caused by radial and axial vibrations when the rotor passes the critical speed or far exceeds the working speed. The impact and degree of damage produced by the rotational speed test device. Background technique [0002] For different types of rotors, due to the different manufacturing processes, the center of mass of the rotor and the axis of rotation will deviate during processing, which will cause the rotor to vibrate during rotation. When the rotor reaches a certain speed, the vibration will be very severe. called the critical speed. The critical speed of different rotors is different, and the same rotor will have multiple critical speeds. When passing the critical speed, the rotor is in an unstable state, and the lateral vibration generated at this time can be elastic and recoverable for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 沈治国王典奚文超陈欣
Owner 上海电动工具研究所(集团)有限公司
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