丰收—27型拖拉机的后桥主动园锥齿轮是一个很重要的零件,也是我厂拖拉机在使用中因经常出现问题而报废的零件。齿轮损坏的主要原因有:麻点、崩齿、齿面压碎及齿轮轴柄折断等。因此将主动齿轮作一系统分析,对保证提高产品质量是完全必要的。主动齿轮系用18CrMnTi钢制造,化学成份如 Harvest-27 tractor rear axle driveway bevel gear is a very important part, but also my factory tractor in use because of frequent problems and scrapped parts. The main reasons for gear damage are: pitting, collapse teeth, tooth surface crushing and gear shaft broken off. Therefore, a systematic analysis of the driving gear, to ensure that improving product quality is absolutely necessary. The active gear train is made of 18CrMnTi steel with chemical composition such as