BRAKE DRIVE WITH SLACK ADJUSTER Russian patent published in 1997 - IPC

FIELD: transport engineering; brake systems; application and release of disk brakes. SUBSTANCE: drive has housing 5 with hollow piston 1 accommodating rigidly secured fixing member 2 with stop 24. Bushing 8 with flange 23 is installed in space of piston 1. Bushing has bead 16 and inner inclined surface 9 pointed to piston 1 and rod 7 rigidly coupled with housing 5. Thrust ring 15 is spring-loaded relative to bead 16 of bushing 8 at side of piston 1. Thrust ring has inner inclined surface 14. Release spring 6 is arranged between flange 23 of bushing 8 and fixing member 2. Solids of revolution 11, 13 are arranged between cylindrical surface of rod 7 and inclined surfaces of bushing 8 and thrust ring 15. Solids of revolution are loaded by expansion spring 12 which presses them to inclined surfaces 9, 14. Solids of revolution 11, 13 are located in two-row holder 21 are installed for axial displacement and are spring loaded relative to holder members. Stop 24 of fixing member 2 installed for engagement with solids of revolution 11 is set with clearance relative to solids of revolution 11 is set with clearance relative to solids of revolution, size of clearance being equal to brake application travel. Return bushing 22 movable in axial direction is placed between piston 1 and solids of revolution 13. Bushing is installed with clearance relative to solids of revolution. EFFECT: enhanced reliability of braking. 2 cl, 2 dwg