论文部分内容阅读
一、前言为了缩小齿轮减速器的尺寸,主要的方法是改多级传动为单级传动,改普通传动为行星传动。所谓大速比齿轮减速器,大体上是指减速比大于20的单级齿轮减速器,主要是指少齿差减速器,以及3K行星传动、谐波传动及蜗轮传动等。少齿差减速器按齿廓曲线及结构之不同,又可分为摆线针轮、渐开线少齿差、圆弧齿小齿差、活齿少齿差、锥齿少齿差等五大类。对于煤矿机械来说,80％以上的减速器其速比均大于20,如采煤机(牵引部与截割部)、刮板输送机、转载机、皮带输送机、各种绞车以及煤电钻等,几乎都是大速比减速器。
First, foreword In order to reduce the size of the gear reducer, the main method is to change the multi-stage transmission to a single stage drive, and change the normal drive to the planetary drive. The so-called speed ratio gear reducer, generally refers to the reduction ratio greater than 20 single-stage gear reducer, mainly refers to a small tooth differential reducer, and 3K planetary drive, harmonic drive and worm gear drive. Reduced tooth profile reducer according to the profile curve and structure of different, but also can be divided into cycloid wheel, involute little tooth difference, arc tooth small tooth poor, live tooth less teeth, teeth and other small tooth poor five class. For coal mining machinery, more than 80% reducer speed ratio greater than 20, such as shearer (traction and cutting), scraper conveyor, loader, belt conveyor, all kinds of winch and coal Drill, etc., almost all speed reducer.