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本文用矢量代数法推导了单万向联轴节的传动比公式;提出了空间双万向联轴节传动比恒定的条件,并作了证明。
In this paper, the vectorial algebraic method is used to derive the transmission ratio formula of a single universal joint. The condition that the transmission ratio of a space dual universal joint is constant is proposed and proved.