摘要
提出了一种行星椭圆齿轮-连杆组合机构,建立了该机构的运动学模型,用VB编写了辅助分析程序,分析了椭圆齿轮偏心率(短长轴比率)和主动椭圆齿轮长轴初始偏角等重要参数对该机构运动特性的影响。通过实例计算,发现该机构具有较好的急回特性,并在工作段速度接近匀速,同时容易实现行程的缩放。
A kind of compound mechanism of planetary elliptic gears ＆ linkages was proposed. Its kinematics mathematical models were established, and an analysis programme was compiled by Visual Basic. Influences on the kinematic characteristics of the mechanism by the important parameters of eccentricity, such as the ratio of primary axis and major axis of the elliptic gear, and the initial assembling angle of active elliptic gear, were analyzed. An example is given; the results show that the mechanism can meet the requirements of uniform speed （or approximately uniform speed） in the working stroke , quick return performances and scalable displacement.
出处
《机械科学与技术》
CSCD
北大核心
2010年第3期407-411,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(50875243)
浙江省自然科学基金项目(Y1080816)资助
关键词
椭圆齿轮行星系
急回机构
运动学
planetary elliptic gears
quick return mechanism
kinematics
