毕业设计_二级圆柱齿轮减速器(1).doc

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1、XX学院设计说明书课题：二级圆柱斜齿齿轮减速器子课题:同课题学生姓名:专业学生姓名班级学号指导教师完成日期47二级圆柱斜齿齿轮减速器摘要减速器是各类机械设备中广泛应用的传动装置。减速器设计的优劣直接影响机械设备的传动性能。减速器是原动机和工作机之间的独立的闭式传动装置，用来降低转速和增大转矩，以满足工作需要，在某些场合也用来增速，称为增速器。　　选用减速器时应根据工作机的选用条件，技术参数，动力机的性能，经济性等因素，比较不同类型、品种减速器的外廓尺寸，传动效率，承载能力，质量，价格等，选择最适合的减速器。减速器的类别、品种、型式很多，目前已制定为行（国）标的减

2、速器有40余种。减速器的类别是根据所采用的齿轮齿形、齿廓曲线划分；减速器的品种是根据使用的需要而设计的不同结构的减速器；减速器的型式是在基本结构的基础上根据齿面硬度、传动级数、出轴型式、装配型式、安装型式、联接型式等因素而设计的不同特性的减速器。与减速器联接的工作机载荷状态比较复杂，对减速器的影响很大，是减速器选用及计算的重要因素，减速器的载荷状态即工作机（从动机）的载荷状态，通常分为三类：　　①—均匀载荷;　　②—中等冲击载荷;　　③—强冲击载荷。由于编者水平有限，设计中有错误与不当之处在所难免，希望大家批评指正。关键字：减速器、齿轮、轴承、联接47目录摘要·

3、·······················································································2一、设计任务书······································································6一、设计题目········································································6二、原始数据·································

4、·······································6三、设计内容和要求······························································6二、传动方案的拟定·····························································7三、电动机的选择··································································71.选择电动机的类型················

5、···············································72.选择电动机功率···································································73.确定电动机转速···································································8四、传动比的计算1.总传动比47··································································

6、·······82.分配传动比······································································8五、传动装置运动、动力参数的计算1.各轴的转速············································································82.各轴功率计············································································83.各轴转矩········

7、········································································9六、传动件的设计计算一、高速级齿轮传动的设计计算················································91.选择材料、热处理方式和公差等级·············································92.初步计算传动的主要尺寸··························································93.确

8、定传动尺寸·······