摘要
为研究采煤机行走机构的行走轮与销排销齿的不同啮合中心距下行走轮转矩对轮齿间啮合力的影响,通过UG建立行走机构三维模型并导入ADAM S进行仿真模拟,采用单因素法进行研究,以行走轮转矩和啮合中心距为研究变量,对行走机构进行动态特性分析。仿真结果表明:在相同转矩下,随着中心距的减小,行走轮与销排销齿的啮合力逐渐增加并且啮合力曲线波动增加;在啮合中心距不改变的情况下,随着转矩的增加,啮合力曲线波动增加,啮合力波动频繁会引起整个系统的振动,适当增加中心距使啮合力变化平缓,在行走机构设计之初可适当增加中心距使整个系统运动稳定;啮合力的波动量随着转矩的增加、中心距的减小而逐渐减小。
In order to study the effect of walking gear torque on gear meshing force under different meshing center distance of the walking gear and the pin tooth in shearer walking mechanism, UG is used to establish 3D model and import it into ADAMS for simulation. Taking walking gear torque and the meshing center distance as the research variables, single factor method is used to analyze dynamic characteristic of walking mechanism. The simulation results show that the meshing force between the walking gear and the pin rows gradually increases with the reduction of center distance under the same torque,the fluctuation range of meshing force curve increases significantly. In the case of meshing center distance does not change, the fluctuation range of meshing force curve increases significantly with the increase of torque, and the frequent fluctuation of meshing force will cause vibration of the entire system. Increasing the center distance appropriately will make the meshing force change gently. With the increase of torque and the decrease of center distance, the fluctuation of meshing force decreases gradually. In the design of walking mechanism, the center distance should be increased appropriately to make the whole system movement stable.
出处
《机械工程师》
2015年第12期34-37,共4页
Mechanical Engineer
关键词
采煤机行走机构
单因素法
啮合力
shearer walking mechanism
single factor method
meshing force
