抄録
Two types of novel one-degree-of-freedom seven-bar geared linkage mechanism are presented. The proposed mechanisms consist of an elementary planetary gear train, a slider-crank mechanism or a Scotch yoke mechanism, and a slider-crank mechanism with a variable-length crank. The output link can generate two required output motion cycles while the input link completes a single motion cycle. The structure, graphical displacement analysis, kinematic analysis and dynamic analysis of these mechanisms are discussed. An example is provided to demonstrate the kinematic and dynamic characteristics of the proposed mechanisms.
