减速器设计初稿.doc

目 录一、设计数据及要求········································································································································································································································································································································································································································································································5一、设计数据及要求工作拉力:F=2000N  卷筒直径:D=330mm   带工作速度:v= 工作条件:连续单向运转,,使用年限8年,小批量生产,单班制工作,运输带速度允许误差±5%传动装置见图二、确定各轴功率、(弹性),轴承,齿轮,滚筒故::可选取nd=1500r/,重量,价格以及总传动比,可确定选电动机型号为Y132S—4较合适,其同步转速nd=1500r/min,满载转速nm=1440r/min,,当两级齿轮的材料相同,齿宽系数相同时,为使各级大齿轮浸油深度大致相近(即两个大齿轮分度圆直径接近),且低速级大齿轮略大,传动比可按下式分配,即,,,   :      : 名功率P(Kw)转矩T(N·mm)转速n(r/min)传动比i效率η(%),8191440199Ⅰ  Ⅱ  Ⅲ  Ⅳ  、选择齿轮材料,热处理方式和精度等级考虑到齿轮所传递的功率不大,故减速箱内大、小齿轮均选用材料40Cr并经调质即表面淬火,齿面硬度为48~55HRC。运输机为一般工作机器,转速不高,故选用7级精度(GB10095—88)。四、齿轮传动校核计算(一)、高速