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PAGEPAGE14螺旋千斤顶设计计算说明书院系专业年级设计者学号指导教师成绩机械设计大型作业编号机械设计大型作业编号01姓名专业机制年级2008班级1设计完成日期2010年10月29日指导教师一、题目：螺旋千斤顶原始数据:（请在指定的设计方案编号后划√）题目设计方案1√2345678910最大起重量F（kN）20253035404550556065最大起升高度H（mm）150160170180190200210220230240二、机构简图三、工作量1、总装配图一张；2、计算说明书一份。四、参考资料螺旋千斤顶设计指导书目录1螺杆的设计与计算··············································································41.1螺杆螺纹类型选择···········································································41.2选取螺杆材料················································································41.3确定螺杆直径················································································41.4自锁验算·······················································································51.5结构················································································