Installation structure for bearings of steel rail polishing vehicle motor

Abstract

The invention discloses an installation structure for the bearings of a steel rail polishing vehicle motor, and relates to an installation structure for the bearings of a steel rail polishing vehicle motor, which mainly solves the problems of a low anti-impact capacity, instable transmission, a low load and a low reliability of the structure that single-row deep groove ball bearings are usually used at a transmission end of the existing steel rail polishing vehicle motor, and single-row angular contact bearings are usually used at a non-transmission end. According to the installation structure disclosed by the invention, two paired single-row angular contact ball bearings are used at a shaft stretching end of the motor; an outer retainer ring and a front bearing outer cover are arranged at the outer side of each single-row angular contact ball bearing respectively; an oil seal is arranged at the inner side of the front bearing outer cover; an inner retainer ring and an outer retainer ring are used between the two single-row angular contact ball bearings; a bearing inner cover and an inner oil seal are arranged at the inner side of each single-row angular contact ball bearing; deep groove ball bearings are used at a non-shaft stretching end of the motor; a waveform elastic gasket is arranged between the deep groove ball bearings and the inner cover of the bearing. The installation structure disclosed by the invention is resistant to impacts and vibrations, and adaptive to severe environments of high temperature, rain and snow, wind and sand, and the like.

Description

technical field [0001] The invention relates to a motor bearing installation structure, in particular to a rail grinding vehicle motor bearing installation structure. Background technique [0002] At present, the impact and vibration produced by the motor of the known rail grinding car during normal operation are very large, the axial positive pressure is greater than 2000N, and the tangential force is greater than 500N. If the bearing installation structure is not designed properly, it is easy to cause damage to the motor bearing, and even the motor damage. When the motor is grinding rails, there are impurities such as high dust and high-density iron powder in the surrounding air, and high-temperature iron filings splash near the drive end of the motor, which easily affects the normal operation of the bearing. In addition, the maximum temperature rise of the motor can reach 180K, and the environment is the highest The ambient temperature does not exceed 55°C, and the minim...

AI Technical Summary

Problems solved by technology

In this way, the motor bearings are easily damaged. Due to various reasons, the bearings will heat up, the noise is too large, oil leakage, and even the bearings are locked.

At present, the driving end of the existing rail grinding car motor often uses single-row deep groove ball bearings, and the non-driving end uses single-row angular contact bearings. This structure has poor impact resistance, unstable transmission, small load capacity, and poor reliability.

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