慢动卷扬机传动装置机械设计课程设计

编号： 1-14

《机械设计》

课程设计说明书

题 目： 慢动卷扬机传动装置

学 院：

专 业： 机械设计制造及其自动化

姓 名：

学 号：

指导教师单位：

指导教师：

职 称：

日期: 2014.7.8

1

第一章 设计任务书 ···················································································································· 2

一、设计题目 ····················································································································· 2

二、工作条件 ····················································································································· 2

第二章 电动机的选择 ················································································································ 3

一、总体传动方案 ·············································································································· 3

二、电动机的选择 ·············································································································· 3

三、传动装置的总传动比和传动比分配 ············································································ 4

四、传动装置运动和动力参数的计算 ··············································································· 4

第三章 传动零件的设计 ············································································································ 5

一、高速级蜗轮蜗杆传动的设计计算 ··············································································· 5

3.1.1选择蜗杆传动类型 ······························································································ 6

3.1.2齿轮材料，热处理及精度 ·················································································· 6

3.1.3按齿面接触疲劳强度进行设计 ··········································································· 6

3.1.4蜗杆与蜗轮的主要参数及尺寸 ··········································································· 7

3.1.5校核齿根弯曲疲劳强度 ······················································································ 8

二、低速级齿轮传动的设计计算 ······················································································· 9

3.2.1选定齿轮类型、精度等级、材料及齿数 ··························································· 9

3.2.2按齿面接触强度设计 ·························································································· 9

3.2.3按齿根弯曲强度设计 ························································································ 11

第四章 轴的设计计算 ·············································································································· 13

一、I轴的设计计算 ········································································································· 13

4.1.1 轴I的数据 ······································································································· 13

4.1.2 求作用在蜗杆蜗轮上的力 ··············································································· 13

4.1.3初步确定轴的最小直径 ···················································································· 13

4.1.4蜗杆轴的尺寸设计 ···························································································· 14

4.1.5轴承的选择与校核 ···························································································· 15

4.1.6蜗杆轴的校核 ··································································································· 17

二、II轴的设计计算 ······································································································· 21

4.2.1轴II、轴III的数据 ·························································································· 22

4.2.2求作用在蜗轮上的力 ························································································ 22

4.2.3初步确定用轴的最小直径 ················································································ 22

4.2.4轴的机构设计 ··································································································· 22

三、III轴的设计计算 ····································································································· 28

4.3.1轴III（输出轴）上的数据 ··············································································· 28

4.3.2求作用在齿轮上的力 ························································································ 28

4.3.3初步确定轴的最小直径 ···················································································· 29

第五章 键的选择和计算 ·········································································································· 29

第六章、其他附件的选择 ········································································································ 29

第七章 密封与润滑 ·················································································································· 30