Study on influence of oil discharging hole on clutch oil charging and discharging characteristics

In order to study the influence of oil discharging hole on the oil charging and discharging characteristics of wet clutch, a mathematical model of oil charging and discharging process is established based on the working principle of wet clutch, and the oil charging and discharging process of wet clutch is analyzed. AMESim software is used to establish the simulation model of the oil charging and discharging process of the wet clutch, and the influence of the size, length and position of the oil discharging hole on the oil charging and discharging characteristics of the wet clutch are studied. The results show that in the oil filling stage, the overlarge oil discharging hole will slightly prolong the connection time, but with little difference, and the length and position of the oil discharging hole have little effect. In the complete clutch engagement stage, with the increase of the diameter of the oil discharging hole and the decrease of the length, the pressure in the piston chamber will be reduced due to the leakage of the oil discharging hole. In the oil discharging stage, with the increase of the diameter of the oil discharging hole, the decrease of the length and the increase of the radius of the oil discharging hole, the oil discharging speed will become faster. In addition, the influence relationship of each factor is obtained through response surface analysis, and the optimal horizontal collocation of each factor under given conditions to determine the optimal size of oil discharging hole.