粉碎机专用传动装置设计.doc

粉碎机专用传动装置设计 摘 要 本设计是粉碎机的专用传动装置，单级蜗轮蜗杆减速器的设计过程。首先进行了传动方案的选取，选择蜗轮蜗杆减速器作为传动装置，然后进行减速器的设计计算，包括选择电动机、设计齿轮传动、轴的结构设计、选择并验算滚动轴承、选择并验算联轴器、校核平键联接、选择齿轮传动和轴承的润滑方式九部分内容。绘制减速器的装配草图，和零件图，并且运用AutoCAD软件进行齿轮减速器的二维平面设计。本次设计综合运用机械设计、机械制图、机械制造基础、几何精度、理论力学、材料力学、机械原理等知识，进行结构设计，并完成粉碎机机传动装置中减速器装配图、零件图设计及主要零件的工艺、工装设计。关键词：蜗轮蜗杆传动传动比传动效率、轴承的选用与校核、轴的设计与校核。 Special mill transmission device design Abstract the design of charging machine dedicated transmission device, single-stage worm gear and worm gear reducer design process. First gives a brief introduction of the transmission scheme, select the worm gear and worm gear reducer as transmission device, and then to the design and calculation of speed reducer, including selecting motor, gear transmission design, shaft structure design, selection and calculation of rolling bearing, selecting and calculating the coupling, check key link, and the choice of gear and bearing lubrication way nine parts. Use AutoCAD software for 2 d plane design of gear reducer, complete reducer two-dimensional plane part drawing and assembly drawing. The design of the integrated use of mechanical design, mechanical drawing, mechanical manufacturing base, geometric accuracy, theoretical mechanics, material mechanics, mechanical principle, such as knowledge, structural design, and complete the loading pattern in gear reducer assembly drawing, part drawing design and main parts in process and equipment design. Keywords: worm gear and worm drive gear ratio transmission efficiency，Bearing shaft and checking of selection, design and check. 目 录 前言 1 1 总体方案设计 3 1.1 电动机选择 3 1.2 选择电动机容量 3 1.3 确定电动机功率 3 1.4 确定电动机转速 3 2 传动方案的确定 4 2.1计算总传动比： 4 2.2 分配减速器的各级传动比： 4 2.3 计算各轴运动和动力参数 4 3 传动零件的设计计算 6 3.1 齿轮设计 6 3.1.1 选材、精度 6 3.1.2 初步计算小齿轮直径 6 3.1.3确定齿轮的基本参数 7 3.2 蜗轮蜗杆设计 7 3.2.1 选择传动精度等级，材料 7 3.2.2 确定蜗杆，涡轮齿数 8 3.2.3 确定涡轮许用接触应力 8 3.2.4 接触强度设计 8 3.2.5 主要几何尺寸计算 9 3.2.6 计算涡轮的圆周速度和传动效率 9 3.2.7 校核接触强度 10 3.2.8 轮齿弯曲强度校核 10 3.2.9 蜗杆轴刚度验算 11 4 轴的设计计算 13 4.1 I轴的设计计算 13 4.1.1 求轴I的动力参数 13 4.