Empty indisputable for train basic brake unit

The utility model discloses an empty indisputable for train basic brake unit, relates to train mechanical equipment technical field. Specifically include: brake pad, support frame, push pedal, fixing base, piston board, piston, disc spring, double -end ball seat, stabilization seat, push rod, the combination of disc spring seat, spline housing, rectangle spring, copper sheathing, cross -over connection screw rod. This device service brake chamber and parking brake chamber function unite two into one, have simplified brake structure. Form with the pole cooperation through the rectangle spring and prevent moving back the mechanism, realize the automatic adjustment function of base apparatus pushing mechanism stroke. This device arranges for the circumference, and to span the formula different with traditional basic brake unit to the requirement of using bigger brake disc when rim inner space installation stopper has been satisfied. This basic brake unit can pull down under the condition of not demolising arrest