Analysed the gas-powered liquid braking system and the entire hydraulic power that used extensively in the construction machinery,introduced three wet brake and their characteristics and principle,then concluded that the wet multiple disk brakes and all hydraulic braking system could meet the special requirements for braking system of the explosion-proof rubber tire vehicle.

Modelling and restraining study of brake noise on wet multiple brake;

The drive mode and working principle of the new hydraulic-mechanical transmission of vehicle,the structure of the wet multiple brake which is set beside the main drive reducer of the drive axle,and the supporting role of the vehicle which plays in the mechanized mining in coal mines are all introduced.