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Bearing structure used for flameproof three-phase asynchronous motor

A three-phase asynchronous motor technology, applied in the field of electric motors, can solve problems such as low life, heating of motor bearings, and damage to operation, and achieve the effects of reliable guarantee, heat generation, and reasonable and ingenious design

Inactive Publication Date: 2013-12-18
WUXI ZHONGDA MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a simple, ingenious and reasonable bearing structure for flameproof three-phase asynchronous motors. , low life and sudden damage during operation provide a reliable guarantee for the safe operation of the motor

Method used

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  • Bearing structure used for flameproof three-phase asynchronous motor
  • Bearing structure used for flameproof three-phase asynchronous motor

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0014] Such as figure 1 , figure 2 As shown, including rubber sealing ring 1, bearing outer cover 2, elastic retaining ring 3, oil retaining plate 4, oil filling pipe 5, sealing ring 6, neoprene rubber 7, deep groove ball bearing 8, bearing sleeve 9, cylindrical roller Bearing 10, bolt 11, spring washer 12, oil discharge box 13, oil discharge pipe 14, rotating shaft 15, oil groove 16, protrusion 17, etc.

[0015] Such as figure 1 , figure 2 As shown, the present invention is a bearing structure for a flameproof three-phase asynchronous motor, including a rotating shaft 15, and a bearing sleeve 9 is placed on the shoulder of the rotating shaft 15, and the inner cavity of the bearing sleeve 9 is sequentially arranged from inside to outside. Cylindrical roller bearings 10 and deep groove ball bearings 8 are installed, and a bearing outer cover 2 is also inst...

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Abstract

The invention belongs to the technical field of motors and relates to a bearing structure used for a flameproof three-phase asynchronous motor. The bearing structure used for the flameproof three-phase asynchronous motor comprises a rotary shaft, and a shaft shoulder of the rotary shaft is sleeved with a bearing bush. A cylindrical roller bearing and a deep groove ball bearing are sequentially installed in an inner cavity of the bearing bush from inside to outside. A bearing outer cover is further installed on the rotary shaft, the rear end face of the bearing outer cover is attached to the front end face of the bearing bush, and a protrusion of the bearing outer cover stretches into the bearing bush and tightly abuts against the outer circle end face of the deep groove ball bearing. An oil baffle disk is further arranged in an internal space formed by the bearing outer cover and the bearing bush. The bearing structure used for the flameproof three-phase asynchronous motor is reasonable and ingenious in design; due to the reasonable structural design, the problems that a motor bearing generates heat, leaks oil, is short in service life and suffers sudden damage in operation are effectively solved, and a reliable guarantee is provided for operation of the motor.

Description

technical field [0001] The invention belongs to the technical field of electric motors and relates to a bearing structure for flameproof three-phase asynchronous electric motors. Background technique [0002] The stability of the bearing structure of a large motor directly determines the quality and service life of the motor, especially for flameproof motors used in special environments with explosive gases. Once a failure occurs, it will cause great losses to the entire enterprise. According to industry statistics, motor failures caused by bearing damage account for more than 70% of all motor failures every year. For this reason, we have thoroughly analyzed and modified motor bearings. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a simple, ingenious and reasonable bearing structure for flameproof three-phase asynchronous motors. , low life and sudden damage during operation provide a ...

Claims

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Application Information

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IPC IPC(8): H02K5/173F16C33/66F16C33/78
Inventor 刘兴斌
Owner WUXI ZHONGDA MOTORS
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