機械設(shè)計螺旋千斤頂

1、目錄目錄說明書....................................................2一、螺旋副的設(shè)計及計算....................................21.1螺桿...............................................21.2由耐磨性計算.......................................21.3自鎖性驗算..

2、.......................................11.4螺桿強度驗算.......................................21.5穩(wěn)定性驗算.........................................2二、螺母設(shè)計及計算........................................22.1選材..........................

3、.....................22.2螺紋牙強度計算.....................................22.3計算螺母外徑.......................................22.4計算凸緣尺寸.......................................4三、手柄設(shè)計及尺寸........................................53.

4、1手柄長度的計算.....................................53.2手柄直徑的計算.....................................6四、托杯、底座等結(jié)構(gòu)尺寸的確定............................74.1托杯設(shè)計...........................................74.2底座設(shè)計........................

5、...................7五、效率計算..............................................9六、參考文獻..............................................92所以自鎖?1=48341.41.4螺桿強度驗算螺桿強度驗算由第四強度理論得，=(421)23(0.231)2其中為螺桿所受軸向壓力（或拉力），為螺桿所受扭矩=()22=122900027