Multi-disc brake with vibration damping

Details Multi-disc brake with vibration damping Multi-disc brake with vibration damping

1997-08-13

1999-06-01

Young, Lee W.

Brakes

Wheel

Axially movable brake element or housing therefor

188 7335, F16D 5536

Patent

active

059080914

ABSTRACT:
A multi-disc brake comprises a piston housing (12) attached to a torque tube (16), a plurality of stator discs (18) engaging the torque tube (16) and a plurality of rotor discs (20) positioned about the torque tube (16) for engagement with a wheel. The torque tube (16) includes a flange (17) having a plurality of over-sized openings (31) with each opening (31) receiving therein a bushing (33, 55). A fastener (40) comprising a nut (44) and bolt (40) extends through each over-sized opening (31) and bushing (33, 55), and compresses a bearing plate (38, 48) against the bushing (33, 55) which is captured between the bearing plate (38, 48) and piston housing (12). The slightly over-sized openings (31) in the torque tube flange (17) allow tangential and radial slippage at the area where the torque tube flange (17) contacts the bearing plate (38, 48) during braking, so as to dampen vibrations which occur during braking. The bearing plate (48) may be segmented into arcuate segments (48a, 48b, 48c). Additionally, a resilient mechanism (56) may be disposed between the torque tube (16) and piston housing (12) to provide a constant preload.

REFERENCES:
patent: 5255761 (1993-10-01), Zaremsky
patent: 5437352 (1995-08-01), Harker
patent: 5494138 (1996-02-01), Scelsi et al.
patent: 5540305 (1996-07-01), Hammond et al.

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