λ对曲柄摆动导杆机构的运动特性影响  

Effect of λ on Motion Performance of Crank and Oscillating Guide-bar Mechanism

作　　者：冯立艳 何世伟 

机构地区：[1]华北理工大学机械工程学院,河北唐山063210

出　　处：《华北理工大学学报（自然科学版）》2017年第4期47-51,共5页Journal of North China University of Science and Technology：Natural Science Edition

基　　金：教育部在线研究基金项目(2016YB117);河北省高等教育教学改革研究与实践项目(2015GJJG084)

摘　　要：曲柄摆动导杆机构的运动性能取决于特性系数λ。研究了曲柄摆动导杆机构的极位夹角分别为锐角、直角、钝角时λ的取值范围;建立了λ与极位夹角θ、行程速比系数K、导杆的摆角φ_3、角速度ω_3、角加速度α_3之间的数学关系式,求得了φ_3及ω_3最大时λ的取值,并绘制了对应的曲线图,进一步分析了λ对曲柄摆动导杆机构运动特性的影响,为曲柄摆动导杆机构的设计提供了重要的理论依据。The motion performance of the crank and oscillating guide-bar mechanism depends on the characteristic coefficientλ.The value ranges ofλwere evaluated when the extreme position angle was acute angle,right angle or obtuse angle respectively.The mathematical relationships betweenλand the extreme position angleθ,coefficient of travel velocity ratio K,the guide rod pendulum angle φ3,angular velocity ω3 as well as angular acceleration α3 were established.The value ofλwas obtained in terms of the largest value of φ3 and ω3,and then the corresponding curve was drawn.The influence ofλon the motion characteristics of the crank and oscillating guide-bar mechanism was analyzed.An important theoretical basis for the design of the crank and oscillating guide-bar mechanism is provided.

关 键 词：曲柄摆动导杆机构 运动特性 角速度 极位夹角 

分 类 号：TH112[机械工程—机械设计及理论]