链式输送机专用传动装置的设计.doc
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- 链式 输送 专用 传动 装置 设计
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1、石料链式输送机专用传动装置的设计摘要:本设计是石料输送机传动装置,是一种典型的二级圆柱斜齿轮减速器的传动装置。其中小齿轮材料为40Cr(调质),硬度约为240HBS,大齿轮材料为45钢(调质),硬度约为215HBS,齿轮精度等级为8级。轴、轴承、键均选用钢质材料。首先进行了传动方案的选取,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、
2、理论力学、材料力学、机械原理等知识,进行结构设计,并完成石料输送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:圆柱斜齿轮减速器、轴承的选用与校核、轴的设计与校核。 Stone conveyor transmission device designAbstract:The transmission device, this design is the stone conveyor is a kind of typical secondary cylindrical helical gear reducer drive. The pinion materials of 4
3、0 cr (conditioning), hardness of about 240 HBS, big gear material is 45 steel (conditioning), hardness of about 215 HBS, gear precision grade 8. Shaft, bearing, key selects the steel material. First has carried on the transmission scheme selection and calculation of the design of the speed reducer,
4、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. Reducer assembly rough sketches, and parts diagram, and us
5、e AutoCAD software for 2 d plane design of gear reducer. 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 t
6、he stone in the conveyor drive reducer assembly drawing, part drawing design and main components of the process and equipment design.Keywords: cylindrical helical gear reducer, the selection of bearing and check, the shaft design and check.目 录1前言11.1传动简图的拟定31.2技术参数31.3拟定传动方案32电动机的选择42.1 电动机的类型42.2 功
7、率的确定42.2.1工作机所需功率42.2.2电动机至工作机的总效率42.2.3所需电动机的功率 (kw)42.3确定电动机的型号43传动比分配和计算53.1传动比的分配53.2传动参数的计算53.2.1各轴的转速n(r/min)53.2.2各轴的输入功率P(kw)53.2.3各轴的输入转矩T(Nm)54链传动的设计与计算64.1选择链轮齿数64.2确定计算功率64.3选择链条型号和节距64.4计算链节数和中心距64.5计算链速v,确定润滑方式64.6计算链传动作用在轴上的压轴力74.7链轮材料的选择及处理75圆锥齿轮传动的设计计算85.1选定齿轮类型、精度等级、材料及齿数85.2按齿面接触疲
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