齿轮传动系统冲击载荷抑制与动态参数优化

针对重载高速齿轮传动系统冲击载荷大、影响系统可靠性和使用寿命等特点,以某采煤机齿轮传动系统为例,建立了包含电机动态模型、耦合轮系和行星轮系动力学模型的采煤机动力传动系统机电耦合模型,研究了在采煤机运行过程中通过优化运动参数来降低截割传动系统冲击载荷的方法.仿真结果表明:在负载突变工况下,运动参数动态优化使截割传动系统中的冲击载荷减小.搭建了截割动力传动系统实验台架,通过台架试验研究了运动参数优化对截割传动系统冲击载荷的影响,实验与仿真所获得的传动系统冲击载荷的趋势相似,调速持续时间相近,验证了运动参数优化的有效性.

Impact load suppression and dynamic parameter optimization of a gear transmission system

The reliability and service life of the heavy-duty and high-speed gear transmission system are severely affected by the large impact load of the system. The objective of this study is to reduce the impact load of the cutting transmission system by optimizing the motion parameters during the operation of the shearer. Taking a coal mining machine gear transmission system as an example, an electromechanical coupling model of the power transmission system of the shearer including the dynamic model of the motor and the dynamic model of the coupled gear train and the planetary gear train was established. The simulation results show that under sudden load changes, the dynamic optimization of the motion parameters reduces the impact load in the cutting transmission system. An experimental bench for the cutting power transmission system was set up to study the effects of motion parameter optimization on the impact load of the cutting transmission system. The trend of the impact load of the transmission system and the speed adjustment duration obtained from experiments and simulations are in good agreement, verifying the effectiveness of the motion parameter optimization.