二级圆锥-斜齿圆柱齿轮减速器 下载本文

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设计说明书

课 题: 二级圆锥-圆柱齿轮减速器

子课题: 同课题学生姓名:

专 业 机电一体化 学生姓名 黄友金 班 级 学 号 指导教师

完成日期 2009年3月

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二级圆锥-圆柱齿轮减速器

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。

本文主要二级圆锥-圆柱齿轮减速器的设计,设计中存在不足

的请大家给予意见和建议。

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目 录

摘要························································································2 一、设计任务书······································································6

一、设计题目········································································6 二、原始数据········································································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··································································7

1.选择电动机的类型·······························································7 2.选择电动机功率···································································7 3.确定电动机转速···································································8

四、传动比的计算

1. 总传动比·········································································8 2. 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············································································8 2.各轴功率计············································································8 3.各轴转矩················································································9

六、 传动件的设计计算

一、高速级锥齿轮传动的设计计算················································9 1.选择材料、热处理方式和公差等级·············································9 2.初步计算传动的主要尺寸··························································9 3.确定传动尺寸·········································································10 4.校核齿根弯曲疲劳强度·····························································11 5.计算锥齿轮传动其他几何尺寸····················································12 二、低速级斜齿圆柱齿轮的设计计算 1.选择材料、热处理方式和公差等级··············································12 2.初步计算传动的主要尺寸···························································13 3.确定传动尺寸···········································································15 4.校核齿根弯曲疲劳强度······························································16 5.计算锥齿轮传动其他几何尺寸·····················································17

七、齿轮上作用力的计算·························································17

1.高速级齿轮传动的作用力····························································17 2.低速级齿轮传动的作用力····························································18

八、减速器装配草图的设计······················································19

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