采煤机摇臂齿轮传动系统的动态仿真

Dynamic Simulation of the Gear Transmission System of the Shearer’s Swinging Arm

以采煤机摇臂齿轮传动系统的动力学仿真模型为研究对象,分别研究了传动系统在空载和不同变载的振动响应情况,并对仿真数据进行时域和频域分析。结果表明空载情况下,最大激励振动发生在启动阶段,随着输入载荷的不断增加,启动阶段的振动幅值逐渐降低;在系统的频谱分析中发现了二级齿轮传动的倍频和一级齿轮传动频率,随着输入载荷的增大,一级传动啮合刚度激励对二级传动振动响应影响逐渐增大。

Taking the dynamic simulation model of shearer’s swinging arm gear transmission system as the research object,the vibration response of the transmission system under zero-load and different variable load was studied respectively,and the simulation data were analyzed in time domain and frequency domain.The results showed that under zero-load condition,the maximum excitation vibration occurred in the start-up stage,and the vibration amplitude decreased with the increase of input load.In the spectrum analysis of the system,the double frequency of the secondary gear drive and the frequency of the primary gear drive were obtained.With the increase of the input load,the influence of the meshing stiffness excitation of the primary drive on the vibration response of the secondary drive increased gradually.