高速轴轴系部件设计.docx

哈尔滨工业大学
机械设计作业设计计算说明书

题目：设计齿轮传动高速轴的轴系部件
系别：
班号：
姓名：
日期：2014.11.29

哈尔滨工业大学
机械设计作业任务书

题目：设计带式运输机中的齿轮传动

设计原始数据：
带式运输机传动方案如图1所示。
图1带式运输机运动方案及各轴名称

原始数据见表1
表1带式运输机设计中的已知数据
电动机工作功率Pd（kW）电动机满载转速工作机的转速第一级传动比
轴承中
心高H（mm）最短工作
年限工作环境3960901.81508年1班室外、有尘目录

=1\*Arabic\*MERGEFORMAT1轴材料的选择···············································3
2初算轴径···················································3
3结构设计···················································3
=31\*Arabic\*MERGEFORMAT3.1确定轴的轴向固定方式··································4
=31\*Arabic\*MERGEFORMAT3.2确定轴承类型及其润滑和密封方式·························4
=31\*Arabic\*MERGEFORMAT3.3确定各段轴的径向尺寸··································4
=31\*Arabic\*MERGEFORMAT3.4确定轴承端盖的尺寸·····································5
=31\*Arabic\*MERGEFORMAT3.5确定各段轴的轴向尺寸··································5
=31\*Arabic\*MERGEFORMAT3.6确定各段轴的跨距·······································6
=31\*Arabic\*MERGEFORMAT3.7确定箱体的尺寸·········································6
=31\*Arabic\*MERGEFORMAT3.8确定键的尺寸···········································7
4轴的受力分析···············································7
=31\*Arabic\*MERGEFORMAT4.1画出轴的受力简图·······································7
=31\*Arabic\*MERGEFORMAT4.2计算轴承的支承反力·····································7
=31\*Arabic\*MERGEFORMAT4.3画出轴的弯矩图·········································7
=31\*Arabic\*MERGEFORMAT4.4画出轴的转矩图·········································9
5校核轴的强度···············································9
=31\*Arabic\*MERGEFORMAT5.1按弯扭合成强度计算·····································9
=31\*Arabic\*MERGEFORMAT5.2轴的安全系数校核计算···································9
6校核键连接的强度··········································11
7轴承寿命计算··············································11
8绘制高速轴装配图··········································12
9参考文献··················································12

=1\*Arabic\*MERGEFORMAT1轴材料的选择
因传递功率不大，且对质量及结构尺寸无特殊要求，故需选用常用材料45钢，并调质处理。
2初算轴径
由V带传动的设计计算和齿轮传动的设计计算可得各轴的运动参数和动力参数见