基于ADAMS的室内攀岩机蜗轮蜗杆机构分析

Analysis of worm and worm gear transmission mechanism of indoor rock climbing machine based on ADAMS

蜗轮蜗杆机构是室内攀岩机的重要组成部分,除了实现攀岩机攀岩面角度的变幅功能之外,还保证攀岩机在运行过程中保持平稳而不晃动。在进行蜗轮蜗杆机构的设计时,通常是以攀岩机处于静止状态时的受力情况作为主要依据,而蜗轮蜗杆机构所受负载是随攀岩机变幅角度的变化而变化的。为此,将已经建好的虚拟样机和蜗轮蜗杆参数化模型导入到机械动力学分析软件ADAMS中,对蜗轮蜗杆机构在变幅过程中进行动力学分析。分析得到的结果,可以为蜗轮蜗杆机构的设计和安全校核提供更加精确的参考。

The worm and worm gear transmission mechanism is an important part of indoor rock climbing machine. Besides realizing the amplitude function of indoor rock climbing machine,it ensures that the rock climbing machine in the running process can maintain a smooth movement without shaking. In the design of the worm and worm gear transmission mechanism,the force of indoor rock climbing machine in static state is usually the known condition. Actually,the load on the worm and worm gear transmission mechanism changes when the indoor rock climbing machine varies in angles. To this end,the virtual prototype of indoor rock climbing machine including the parametric model of worm and worm gear was built and ADAMS is used to carry out the dynamic analysis of the worm and worm gear transmission mechanism in the process of variable amplitude. The analysis results provide a more accurate reference for the design and security check of the worm and worm gear mechanism.