针对刮板输送机存在启动困难、多机驱动功率不均衡等突出问题,建立了刮板输送机传动系统的动力学模型,并在MATLAB/Simulink软件平台上构建其仿真模型,以2×855kW刮板输送机为例,对刮板输送机的软启动过程进行数值仿真,分析了偶合器充液流量、电动机额定转速、链轮半径和链条阻尼对刮板输送机软启动过程的影响。结果表明:合理的充液流量可以充分利用电动机的峰值力矩,提高偶合器的启动力矩;电动机额定转速和链轮半径差异对机头、机尾驱动电动机的功率分配不均有较大影响;链条阻尼决定了刮板输送机上链链速震荡衰减的快慢。

According to the starting difficult, imbalance of multi driving power and other major problems existed in the scraper conveyor, a kinetics model on the dri ving system of the scraper conveyor was established and a simulation model was established based on the MATLAB/Simulink platform. Taking 2x855 kW scraper conve yor as an example, a numerical simulation was conducted on the soft start process of scraper conveyor.The paper had an analysis on the flow of the flld liquid in the C oupling, rated speed of the eclectic motor, radius of the sprocket and chain damping affected to the soft start of scraper conveyor.The results showed that the rational fil led liquid flow could fully uillize the peak torque of the electric motor and improve the start torque of coupling. The rated speed of the electric motor and the sprocket rad ius difference would have high influences to the non-uniformity of the power distribution for the driving motors at the head and tail of the conveyor.The chain damping w ould determine the damped oscillation fast-slow of the chain speed in the scraper conveyor.

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