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Device and method for measuring radial force of rotor bearing of three-phase induction motor

A technology for induction motors and measuring devices, applied in measuring devices, electromechanical devices, force/torque/power measuring instruments, etc., to achieve the effects of simple process, convenient operation and simple production

Active Publication Date: 2015-02-25
ZHUZHOU LINCE GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the radial force measurement method for motors is relatively rare. In order to study the actual force of the motor rotor bearing, a radial force measurement method suitable for three-phase induction motors is given.

Method used

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  • Device and method for measuring radial force of rotor bearing of three-phase induction motor
  • Device and method for measuring radial force of rotor bearing of three-phase induction motor
  • Device and method for measuring radial force of rotor bearing of three-phase induction motor

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific drawings and embodiments: a three-phase induction motor rotor bearing radial force measuring device, comprising a motor front cover 1, a motor rotor bearing 12 and a motor shaft, characterized in that the three-phase induction motor The motor rotor bearing radial force measuring device is equipped with bolts 2, auxiliary process keys 3, load cell 4 with display, force supporting parts 5, left and right positioning parts 6 and rear positioning parts 9 on the motor front cover 1; Wherein, the end cover 1 is provided with a process keyway 8; the load cell 4 is a standard part;

[0022] The force supporting parts 5 are arranged on the front end cover 1 of the motor, bolt holes 7 are arranged on the force supporting parts 5, and a force sensor 4 with a display instrument is arranged under each force supporting part 5. The force sensor The left and right positioning parts 6 and the rear positio...

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Abstract

The invention relates to a method for measuring radial force of a rotor bearing of a three-phase induction motor. A motor front end cover, a motor rotor bearing and a motor spindle are provided; the motor front end cover is provided with a bolt, an auxiliary process key, a force measuring sensor with a display, a support part, left and right positioning members and a rear positioning member; the motor front end cover is internally provided with a process key way. The method includes: setting a measuring device, theoretically calculating the axial force, adjusting the bolt to apply certain pretension force to the force measuring sensor, starting the motor, and observing changes in the force displayed by the display of the force measuring sensor. The method has the advantages that the process is simple, the auxiliary structure is simple to produce and convenient to operate, the difficulty in existing testing of the radial force of the motor rotor bearing is overcome, the forcible basis for further understanding of actual stress condition of the motor and evaluation of processing level is provided.

Description

technical field [0001] The invention relates to a three-phase induction motor rotor bearing radial force measuring device and a measuring method, which are mainly used in the radial force measurement of the motor rotor bearing in an orbit fan. Background technique [0002] The fan rotor system is one of the core components of the fan system. There is no corresponding test on the actual force of the rotor bearing system. At present, the force on the external load of the rotor is obtained through ideal theoretical calculations, but the characterization of the characteristic parameters is not The difference is very large, such as in the bearing life, the difference from the actual is relatively large, the bearing life has a great relationship with the actual force of the bearing, and the bearing installation error of the rotor system brings additional load to the bearing is currently difficult to determine Among them, the interference fit caused by misalignment is the main char...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/12H02K11/00H02K11/20
Inventor 屈小章阳吉初翟方志候志泉周雷军刘智远
Owner ZHUZHOU LINCE GRP
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