Floating disc brake assembly with interlocking hub and rotor

Details Floating disc brake assembly with interlocking hub and rotor Floating disc brake assembly with interlocking hub and rotor

F - Mech Eng,Light,Heat,Weapons

16

D

F16D 65/12 (2006.01)

Patent

CA 2560717

A floating disc brake assembly (10) comprises a hub (12) and a rotor (14) in mating alignment therewith through one or more interlocking lobes (18, 20) that are alternatingly arranged about an outer peripheral edge (E1) of the hub and an internal edge (E2) of the rotor. The rotor is coupled to, and disposed circumferentially around, the hub. As a friction element is applied to the rotor to decrease rotation thereof during a braking operation, the interlocking lobes transmit brake torque from the rotor to the hub through a gap (G) existing therebetween. The gap retards heat flow. The gap also permits radial float. Differing hub and rotor widths, or a floating clearance between a fastener and the hub, both permit axial float. Warpage and knockback of the rotor are reduced.

L'invention concerne un ensemble disque de frein flottant (10) comprenant un moyeu (12) et un rotor en alignement conjugué à travers un ou plusieurs lobes de verrouillage (18, 20) disposés en alternance autour d'un bord périphérique externe (E1) du moyeu et un bord interne (E2) du rotor. Le rotor est couplé au moyeu et disposé autour de ce dernier de manière cironférentielle. Etant donné qu'un élément de friction est appliqué au rotor afin de réduire sa rotation pendant l'opération de freinage, les lobes de verrouillage transmettent le couple de freinage du rotor au moyeu par le biais d'un écartement (G) entre eux. Ledit écartement retarde le flux thermique et permet le flottement radial. Des largeurs différentes du moyeu et du rotor, ou le dégagement flottant entre un élément de fixation et le moyeu, permettent le flottement axial. Le gauchissement et la rupture du rotor sont réduits.

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