Protective device for a drive assembly with a double universal joint

US6406375B1 · kind B1 · utility

Assignee

• GKN Walterscheid GmbH · DE

Inventors

• Paul Herchenbach · Ruppichteroth, DE
• Andreas Sarfert · Bonn, DE

Key dates

• Filing date: Nov 3, 2000
• Grant date: Jun 18, 2002
• Expiry date: Nov 3, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01B71/08
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A protective device for a driving assembly with a double universal joint has a protective cone (13) made of plastic. At a first axial end, the protective cone (13) is secured to a bearing assembly (12). At its second axial end (16), the protective cone (13) carries a guiding ring (18). Folds (15) are arranged between the axial ends. A hollow-spherical-zone-like inner bearing face (19) of the guiding ring (18) is arranged on a spherical outer bearing face (26) of a bearing race (25). A sliding ring (30) in the bearing race (25) is supported in a bearing groove (27) of the double yoke (2) of the double universal joint (1). The guiding ring (18) is pre-tensioned by the folds (15) of the protective cone (13) and thus held in contact with the outer bearing face (26). The guiding ring (18) can be removed from the bearing assembly, thus making components of the double universal joint accessible for maintenance purposes, such as lubrication.