摘要
单曲柄双摇杆式翻板机驱动机构,实为两套共驱动轴的正置式曲柄摇杆机构,但两曲柄具有一相位差。在分析驱动机构工作原理的基础上,给出了其综合问题的准确表述,即:已知机架长度和摇杆摆角,按许用传动角综合正置式曲柄摇杆机构。推导出这类机构最小传动角与杆长及摇杆摆角之间的解析关系,分析最小传动角接近其上确界时的杆长及最大杆长比变化趋势,进而建立了按许用传动角综合正置式曲柄摇杆机构的解析法。给出了翻板机驱动机构综合实例,性能参数分析结果验证了综合方法的正确性和可行性。
The driving linkage of single-crank and bi-rocker in plate turnover machine is essentially two crank-rocker linkages of centric type together with a driving shaft,in which two cranks have a phase difference.The working principle of the driving mechanism is analyzed and its accurate description of synthesis problem,which is synthesizing a crank-rocker mechanism of centric type according to allowable transmission angle,when the frame length and the swinging angle of rocker are given.The analytic relation of these mechanisms between the minimum transmission angle and the link lengths,the swinging angle of rocker is derived,the changing trends of the link lengths and the maximum length ratio when minimum transmission angle approaches its supre⁃mum is also analyzed.Furthermore,the analytic method is built to synthesize a crank-rocker mechanism of cen⁃tric type according to permissible transmission angle.A case for synthesizing the driving linkage in plate turn⁃over machine is given,and then the correctness and feasibility of the synthesis method of the results of perfor⁃mance parameter analysis are verified.
作者
车林仙
何兵
Che Linxian;He Bing(School of Intelligent Manufacturing and Traffic,Chongqing Vocational Institute of Engineering,Chongqing 402260,China;Luzhou Municipal Key Laboratory of Intelligent Manufacturing,Luzhou Vocational and Technical College,Luzhou 646600,China)
出处
《机械传动》
北大核心
2021年第11期79-84,共6页
Journal of Mechanical Transmission
基金
重庆市教育委员会科学技术研究重点项目(KJZD-K201803401)。
关键词
翻板机
曲柄摇杆机构
正置式
传动角
解析方法
Plate turnover machine
Crank and rocker mechanism
Centric type
Transmission angle
Analytic method
