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Method and device for measuring radial clearance of motor bearing assembly

A technology for radial clearance and motor bearings, applied in measuring devices, mechanical bearing testing, optical devices, etc., can solve problems such as low accuracy of manual measurement, easy damage to bearings, low efficiency, etc., to avoid hidden dangers of shaft damage, High working efficiency and open space effect

Active Publication Date: 2021-07-02
CSR ZHUZHOU ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to propose a high-precision, automatic motor bearing assembly clearance measurement method and device to solve the problems of low accuracy, low efficiency, and easy damage to the bearing due to the deficiencies of the existing technology.

Method used

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  • Method and device for measuring radial clearance of motor bearing assembly

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Embodiment 1

[0035] Such as figure 1 As shown, the motor bearing assembly radial clearance measurement device includes a motor displacement device and a laser measurement device, wherein the motor displacement device includes a main base 1, a flange 2, a displacement plate 3, a bracket 31 and a fastening frame 32. The main base 1 is provided with a servo motor, the servo motor is connected to the flange 2, and the displacement plate 3 is connected to the flange 2, and then the support 31 and the fastening frame 32 are fixedly connected to the displacement plate 3 superior. The fastening frame 32 is also fixedly connected with the motor casing 4 , in order to prevent loosening between the fastening frame 32 and the motor casing 4 during the rotation of the motor, the fastening frame 32 will be fixedly connected with multiple parts of the motor casing 4 .

[0036] The laser measuring device includes a laser emitter 7 and a laser receiver 6, a bracket 31 is fixedly installed on the displace...

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Abstract

A method and device for measuring the radial clearance of a motor bearing assembly. The motor shell is fixed on a motor displacement device, a laser measuring device is installed on the motor displacement device, and the laser measuring device is started to measure the position of the rotating shaft of the motor for the first time. Measurements in the vertical direction. Start the motor displacement device to rotate the motor 180 degrees around the direction perpendicular to the motor axis, and then use the laser measuring device to measure the position of the motor shaft for the second time in the vertical direction, and measure the two vertical directions Calculate the difference of the value, so as to obtain the radial clearance of the motor bearing assembly. The invention uses a laser measuring device to scan the position of the rotating shaft before and after the rotation and calculates the radial assembly clearance, which has the advantages of high precision, high efficiency, and no damage to the bearing.

Description

technical field [0001] The invention relates to a measuring method and a measuring device, in particular to a measuring method and a measuring device for motor clearance. Background technique [0002] The existing clearance measurement operation of the bearing assembly of the traction motor basically adopts a semi-automatic method. The motor rotor is lifted by hydraulic mechanism, electric mechanism, crown block, etc. to realize the displacement of the rotor within the range of bearing clearance. The displacement was measured and transcribed manually by means of manual reading and metering. [0003] The existing measuring method adopted for the motor in the horizontal state is to use the "shaft lifting method" to measure the radial clearance of the bearing assembly. The rotor of the motor is lifted by manual methods, hydraulic mechanism, electric mechanism, crane, etc. to realize the radial displacement of the rotor within the range of bearing clearance. Monitor the outer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/14G01M13/04
CPCG01B11/14G01M13/04
Inventor 郑宇华杨学军韦在凤
Owner CSR ZHUZHOU ELECTRIC CO LTD
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