矿车是煤矿中主要运输工具之一,量大面广,煤炭系统在藉矿车台数约50万台以上,承担着50％以上原煤及大部分材料、矸石、人员的运输任务。矿车轮对是矿车的承载机构,又是行走机构,是矿车上的重要部件。目前,我国煤矿井下使用的矿车轮对,大部分仍为原苏联在50年代采用的结构形式,在煤矿井下运转使用寿命一般为3～6个 Mine car is one of the main means of transport in coal mines, a large amount of vast area, the coal system in the number of borrowing about 500,000 cars Taiwan, bear more than 50% of raw coal and most of the material, gangue, personnel transport tasks. Mine car wheel is the bearing mechanism of the car, but also the walking mechanism, is an important part of the car. At present, most of the coal mine wheelsets used in China’s coal mines are still in the form of structures adopted by the former Soviet Union in the 1950s, and the service life in coal mine operation is generally 3 to 6