一、概述在获得牵引电动机抱轴承所需特性中最重要的因素是轴颈的光洁度。机械加工在轴颈表面产生的显微粗糙尖峰(称作凸出物)会穿透油膜并引起轴承损伤和失效。经验表明,只有滚压加工能产生使轴承可靠运转的表面。图1为典型的车轴轴颈表面。本说明书阐述如何测量表面光洁度、制定表面光洁度图形以及制出良好的轴颈光洁度。影响抱轴承性能的其他因素如采用合适的润滑油和油芯,以及推荐的维修计划将在其他文件内介绍。二、表面测量本说明书介绍的测量车轴光洁度的仪器,是英国Rank-Taylor-Hobson公司制造的粗糙度检查仪。其他一些相同的英制或米制实验仪器也可按本说明书所述的相似方法使用。如果不能用上述仪器,则可制出金属光洁度的塑胶复印品,并送到实验室作粗糙度检查评定。要求制出六个一组的这种复印 I. Overview The most important factor in obtaining the required characteristics of traction motor bearings is the finish of the journal. Machined micro-roughness spikes (called projections) on the journal surface can penetrate the oil film and cause bearing damage and failure. Experience has shown that only rolling can produce a surface that allows reliable bearing operation. Figure 1 shows a typical axle spindle surface. This manual explains how to measure the surface finish, make the surface finish pattern, and make a good journal finish. Other factors that affect the performance of the bearing, such as the use of suitable lubricants and wicks, and recommended repair schedules, are described in other documents. Second, the surface measurements described in this manual to measure the shaft finish instrument, the British Rank-Taylor-Hobson roughness tester manufactured. Other similar imperial or metric laboratory instruments may also be used in a similar manner as described herein. If you can not use the above equipment, you can make a plastic copy of the metal finish, and sent to the laboratory for roughness inspection assessment. Requires making a group of six such copies