A vehicle equipped with a certain type of BFM1015 diesel engine experienced a low oil pressure alarm on road. The inspection results showed that there was varying degree of wear on the camshaft bushing and triangular plug cover. By analysis,it was found out that the wear was caused by excessive torque at the power-take-off of the diesel engine,causing displacement of the connected transmission mechanism,resulting in insufficient lubrication of the camshaft,burning of the bushing,and wear of the plug cover end face. In response to this problem,a diesel engine power-take-off simulation device was designed to simulate actual working conditions. Experiments were carried out to verify the cause of wear,the test data of the diesel engine and variable displacement pump under safe working conditions was obtained,providing reference for optimizing the matching of power-take-off with diesel engine and vehicle load.
维普
万方数据