螺旋千斤顶说明书.doc

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1、.螺旋千斤顶设计计算说明书院系工程技术学院专业年级机械设计制造及其自动化2009级2班设计者王刚指导教师玲成绩2011年11月28日..螺旋千斤顶设计任务书学生王刚专业年级机械设计制造及其自动化2009级设计题目：设计螺旋千斤顶设计条件：1、最大起重量F=65kN；2、最大升距H=240mm。设计工作量：1、绘制出总装配图一，标注有关尺寸，填写标题栏及零件明细表；2、编写设计计算说明书一份。指导教师签名：20年月日..目录1螺杆的设计与计算····························

2、······················································································31.1螺杆螺纹类型选择····································································································31.2选取螺杆材料··········································

3、···································································31.3确定螺杆直径·············································································································31.4自锁验算························································

4、······························································31.5结构································································································································41.6螺杆强度计算············································

5、·································································41.7稳定性计算··················································································································51.7.1计算柔度····················································

6、·····················································61.7.2..计算稳定性····································································································62螺母设计与计算···········································································

7、···········································62.1选取螺母材料·············································································································62.2确定螺母高度H¢及螺纹工作圈数u····································································

8、··62.2.1求螺母高度H¢································································································72.2.2螺纹工作圈数u·····························································································72.2.3螺母实际高度H¢···················