Manipulate mechanism with concentrative link lever integrates functions , such as steering n shift and operating direction , into one operating lever . with this mechanism , driver can realize all the operations of bulldozer using elbow joint ' s action 集中连杆操纵机构取消了传统的转向、变速及换向操纵杆，将转向、换向与变速操纵功能集成在一根操纵杆上，利用肘关节的自然动作控制操纵杆实现转向、前进后退和变速。
Through the using of adams ( automatic dynamic analysis of mechanical systems ) , kinematics simulations , which are based on the designed new type manipulate mechanism with concentrative link lever , are executed . interferences lying in the former model are measured accurately 本论文使用机械系统运动学/动力学仿真分析软件adams ( automaticdynamicanalysisofmechanicalsystems )对设计的新型推土机集中连杆操纵机构进行了运动学仿真分析，精确测量了存在的联动角度。
Manipulate mechanism with concentrative link lever has important significance to improve maneuverability of bulldozer currently . this thesis includes : designing manipulate mechanism with concentrative link lever and simply calculating force and displacement for operation , based on the referring existing manipulate mechanism of bulldozer ; using high - grade 3 - dimensional plotting software ug ( unigraphics ) to sculpt ; using adams ( automatic dynamic analysis of mechanical systems ) to establish virtual prototyping model and do kinematic simulation . the results verify the rationality of this mechanism and provide the basis for trial - manufacture of physical prototyping and betterment design 本文做的主要工作是：参考推土机原有的变速转向操纵机构，设计了集中连杆操纵机构并进行操纵力和操纵行程的简单计算；使用高档三维造型软件ug (全称unigraphics )进行推土机集中连杆操纵机构的造型设计；应用机械系统运动学/动力学仿真分析软件adams ( automaticdynamicanalysisofmechanicalsystems )对所设计的机构建立虚拟样机，并进行运动学仿真分析，验证了机构设计的合理性，为物理样机的试制和改进设计提供了依据。
