机械原理缝纫机课程设计

mm? ? ?85主要计算结果计算项目结果1z462z40a53.75mm??20 43??1d57.5mm2d50mm1bd54.03232mm2bd46.98463mm1 2x x?0.201081x0.051082x0.15y?0.001081ah1.3125mm2ah1.43615mm1fh1.49865mm2fh1.375mm1ad60.125mm2ad52.8723mm1fd54.5027mm2fd47.25mm91a?261??2a?27 18??1s2.00997mm2s2.09998mm1as0.95719mm2as0.91351mm??1.68352O Al18mmABl60mm2O Cl12.18580mmCDl45.83891mmDEl59.59058mm6用解析法对滑块进行B运动分析1023cos sin( ) 02O A ABl l? ??? ??所以2cos cos 0O A ABl l? ?? ?2 23sin cos( ) sin sin2B O A AB O A ABy l l l l? ????? ????由以上两式可得222sin 1 ( cos )O AB O A ABABly l ll? ?? ??218sin 60 1 (0.3cos )By? ?? ??对应的位移曲线如下