Brake disk for a disk brake

US6808050B2 · kind B2 · utility

Assignee

• SAB Wabco BSI Verkehrstechnik Produtcs, GmbH · DE

Inventors

• Wolfgang Lehmann · Bempflingen, DE
• Manfred Gronemann · Remscheid, DE
• Helmut Ruppert · Remscheid, DE
• John C. Watson · Bebington, GB

Key dates

• Filing date: Dec 5, 2002
• Grant date: Oct 26, 2004
• Expiry date: Dec 5, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2065/1392
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a brake disc for a rail vehicle, with which a hub body (16) and a brake ring (12) are connected to one another such that with braking procedures a thermal expansion of the brake ring (12) relative to the hub body (16) is possible. At the same time screws (15) pass through axially aligned openings in a hub flange (14) arranged on the hub body (16) and a brake ring flange (13) arranged on the brake ring (12). According to the invention the screws at their end exiting the brake ring flange (13), by way of a retaining element which, for example, may be a retaining lug (17) formed integrally on the hub body (16) or a retaining bracket fixed on the hub body, may be fixed relative to the hub body (16) so that an axially parallel position of the screws (15) and a centering of the brake ring (12) is ensured even with thermal expansions. The mounting of the screws (15) is effected indirectly via an axially displaceably movable sleeve (20) or by a retaining braket engaging into a groove on the hub. Furthermore there are provided radial guides for the brake ring (12) which may be realised, for example, by the guiding of the sleeve (20) in a slide block.