A brake assembly, particularly for a hydraulic wheel drive

Details A brake assembly, particularly for a hydraulic wheel drive A brake assembly, particularly for a hydraulic wheel drive

F - Mech Eng,Light,Heat,Weapons

16

D

F16D 55/40 (2006.01) F16D 59/02 (2006.01) F16D 65/14 (2006.01)

Patent

CA 2531030

A brake assembly, in particular of a hydraulic wheel drive, comprising a disk package (8) formed of a plurality of outer disks (9) and corresponding inner disks (7), and compressible by means of a piston assembly (10) for braking, wherein a first hydraulic cycle (11) acts on the piston assembly (10) for driving braking and a second hydraulic cycle (16) acts on the piston assembly (10) for parking braking, the piston assembly (10) comprising a driving brake piston (12) which contacts the disk package (8) and is able to be pressurized by the first hydraulic cycle (11) and also able to be pressurized by an adjacent separate parking brake piston (14) interacting with the second hydraulic cycle (16).

L'invention concerne un ensemble frein, en particulier pour entraînement de roue hydraulique, qui comprend un paquet de lamelles (8) constitué de plusieurs lamelles extérieures (9) et lamelles intérieures (7) correspondantes, paquet qui peut être comprimé par l'intermédiaire d'un ensemble de pistons (10) pour le freinage. Un premier circuit hydraulique (11), servant au freinage de service, agit sur l'ensemble de pistons (10), et un second circuit hydraulique (16), servant au freinage de parking, agit sur l'ensemble de pistons (10), lequel comprend un piston de freinage de service qui est en contact avec le paquet de lamelles (8) et qui, à son tour, peut être soumis à l'action d'un piston de freinage de parking (14) séparé, voisin, coopérant avec le second circuit hydraulique (16).

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