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1、摘要机车轮心是指车轮与车轴配合的部分，它是列车的重要牵引传动部件。轮心内孔与车轴为过盈配合，才用热涨法装配。在这种条件下，列车行走时轮心内孔与车轴无相对运动、无磨损。当岀现更换轴或维修车轴上零件等情况时，需要将车轮解体，此时车轴将从轮心内孔中被强行压出，孔轴配合面就会被破坏。为使轮轴达到可工作的状态，轮心内孔而需堆焊及机加工，恢复内孔外形及表面的光洁度。木文所设计的堆焊机减速器就用于此工序。轮心堆焊机主要由动力头、尾架、焊接小车、底座、导轨及控制箱六大部分组成。本文所设计的减速器属于该堆焊机的动力头的一部分
2、。木文所设计的轮心堆焊机减速器，工作重点在于传动机构和轴的设计。工作的首耍口的是满足基本的使用性能，其次是在此基础上尽量减少减速器的体积和重量使其结构紧凑、加工制造方便。动力头减速器构造有很多种类，木文首要满足的性能指标是速比和强度，之后再从装配方便、缩小体积、降低成本等方面加以考虑。设计后的减速器应具有容易生产、结构简单、可靠实用、安装方便、成木低的特点。关键词：轮心，堆焊机，减速器，动力头。AbstractThemotorcycleroundheartmeansthepartmatchingwithwi
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