垂直循环立体车库中的偏置拨叉链传动设计与仿真

Design and Simulation of Bias Fork Chain Drive in Vertical Circular Stereo Garage

以立体车库作为研究对象,分析了立体车库的优势与不足。从中选取垂直循环立体车库作为研究目标,对其提升系统进行结构改进;针对其主传动中的链条结构涉及到的问题进行了分析,创新设计出一种偏置拨叉链传动机构。阐述了该链传动的设计思路,以及主要参数的设计方法;对改进前与改进后的核心非标零件进行对比阐述。采用Pro/E软件对偏置拨叉链传动机构进行三维建模;利用软件的运动仿真模块,模拟链板运行的轨迹曲率,检测机构运动的可行性;模拟链板运动的位移确定机构啮合的合理性;模拟链板运动的速度验证机构传动比的准确性。结果表明,偏置拨叉链传动机构在减少机械振动,降低传动噪声,缓解多边形效应方面,性能更加稳定。

Taking the stereo garage as the research object,the advantages and disadvantages of the stereo garage is analyzed.The vertical circular stereo garage is selected as example,the structural improvement of lift system is carried out,the issue of the chain structure is analyzed,and the innovative design of a bias fork chain drive mechanism is carried out.The design idea of the chain drive and the design method of the main parameters are expounded.The comparison and elaboration of the core non-standard parts before and after the improvement are carried out.The Pro/E software is used to model the bias fork chain drive mechanism.The motion simulation module of software is used to simulate the trajectory curvature of the chain plate and the feasibility of the motion of the detection mechanism.The rationality of meshing of the movement of the simulated chain plate is determined.The accuracy of the mechanism transmission ratio is verified by simulated chain plate movement.The results show,bias fork chain drive mechanism is able to reduce mechanical vibration,reduce transmission noise,ease the polygon effect,the performance is more stable.