论文部分内容阅读
某超大型挖掘机自身质量400t,斗容量21~25m~3,其与矿用卡车配合,主要用于在大型矿山开采矿石。该种机型使用工况极其恶劣,对底盘的可靠性要求较高,尤其对引导轮、支重轮、托链轮、驱动轮及履带的耐久性要求很高。其中支重轮主要起支撑整机质量和行走的作用。在整机行走过程中,支重轮承受巨大的交变冲击力;在破碎作业时,承受更大的冲击力。1.存在问题该超大型挖掘机支重轮主要由轮体、轮轴、
A very large excavator own quality 400t, bucket capacity of 21 ~ 25m ~ 3, with mining trucks, mainly for mining ore in large-scale mines. This kind of model is extremely bad working conditions, high reliability requirements of the chassis, especially for the guide wheel, roller, carrier sprocket, drive wheels and track durability requirements are high. Among them, the support rollers mainly play the role of supporting the whole machine quality and walking. In the whole process of walking, the roller bearing a huge alternating impact; in the crushing operation, to bear a greater impact. 1. Existing problems The large excavator roller mainly by the wheel, axle,