机械设计
MechanicalDesign
HW02
第02章平面连杆机构
作业
所有作业要求?写
Autumn2024
机械设计|第02章平面连杆机构|作业2
HW02.1
?根据长度关系判断图中三个铰链四杆机构:
图(a)是________机构、图(b)是________机构、图(c)是________机构。
?Basedonthelengthrelationships,identifythethreefour-barlinkagemechanismsshownin
thefigure:
Figure(a)isa__________mechanism,Figure(b)isa__________mechanism,andFigure
(c)isa__________mechanism.
机械设计|第02章平面连杆机构|作业3
HW02.2
?如图所示,已知=240mm,=600mm,400mm,=500mm,
1)当连杆4作为机架时,是否存在曲柄?
2)是否可以选择不同的杆作为机架,以获得双曲柄机构和双摇杆机构?如何选择?
3)若三杆长度不变,取杆4为机架,为得到曲柄摇杆机构,的取值范是多少?
?Asshowninthefigure,itisknownthat=240mm,=600mm,400mm,=500mm,
1)Whenthelever4isusedasaframe,isthereacrank?
2)CanIchoosedifferentbarsfortheframetogetthedoublecrankmechanismand
doublerockermechanism?How?
3)Ifthelengthsofthethreerodsandareunchanged,takerod4astheframe,andto
obtainthecrankandrockermechanism,whatshouldbethevaluerangeof
机械设计|第02章平面连杆机构|作业4
HW02.3
?如图所示为偏置曲柄滑块机构。
曲柄1和连杆2的长度分别为201.7和605.2,偏距=325.6。
1)若滑块3向右运动为机构的?作?程(慢?程),试确定曲柄1的转动?向;
2)求该机构的最小传动角γ,并作图画出其对应的位置。
?Thefigureshowsanoffsetcrank-slidermechanism.
Thelengthsofcrank1andconnectingrod2are201.7and605.2,respectively,with
anoffsetdistanceof=325.6
1)Ifslider3movestotherightduringtheworkingstroke(slowstroke)ofthemechanism,