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齿轮齿条机构具有传动精密,往复运动易于实现;导杆机构尺寸设计相对容易,输出位移的设计范围大、传动角在输入输出端均为90°,传动效率高。当满足一定复合函数的数学条件时机构在极限位置可达到四阶停歇,为此设计了一种可以实现四阶停歇的九杆机构,使之兼具上述两种机构的优点,并且给出了设计原理及公式。
The gear rack and pinion mechanism has the advantages of precise transmission and easy reciprocating movement. The guide rod mechanism is relatively easy to design in size and has a large output displacement displacement range. The transmission angle is both 90 ° at the input and output ends and the transmission efficiency is high. When the mathematic condition of a certain complex function is satisfied, the mechanism can achieve the fourth-order stop at the limit position. For this reason, a nine-bar mechanism capable of achieving the fourth-order stop is designed so as to combine the advantages of the above two mechanisms. Design principles and formulas.