螺旋千斤顶说明书1.docVIP

螺旋千斤顶 设计计算说明书 院 系 专业年级 设 计 者 指导教师 成 绩 年 月 日 螺旋千斤顶设计任务书 学生姓名 专业年级 设计题目： 设计螺旋千斤顶 设计条件： 1、最大起重量F = 30 kN； 2、最大起重高度H =180mm。 设计工作量： 绘制出总装配图一张，标注有关尺寸，填写标题栏及零件明细表； 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··················································································································3 1.1螺杆螺纹类型选择····································································································3 1.2选取螺杆材料·············································································································3 1.3确定螺杆直径·············································································································3 1.4自锁验算······················································································································3 1.5结构································································································································4 1.6螺杆强度计算·············································································································4 1.7稳定性计算··················································································································5 1.7.1计算柔度·········································································································6 1.7.2计算稳定性····································································································6 2螺母设计与计算······················································································································6 2.1选取螺母材料·············································································································6 2.2确定螺母高度H(及螺纹工作圈数u·································································