Bevel gear unit

US6758775B2 · kind B2 · utility

Assignee

• P.I.V. Antrieb Werner Reimers GmbH & Co. KG · DE

Inventors

• Johannes Heinrich · Friedrichsdorf, DE
• Gert Schonnenbeck · Neu-Anspach, DE
• Peter Wagner · Starnberg, DE
• Rainer Matzig · Königstein, DE

Key dates

• Filing date: Nov 20, 2001
• Grant date: Jul 6, 2004
• Expiry date: Nov 20, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H61/66272
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Provided is an infinitely variable cone pulley transmission for which the contact pressure between the cone pulley pairs and the traction is generated hydraulically on one transmission side and mechanical, with the aid of a spring, on the other transmission side. The second transmission side is provided with an axially fixed and an axially movable cone pulley with extended hub. The contact pressure mechanism includes a cam sleeve that is fixed relative to the shaft, a cam sleeve formed by the free end of the hub and roll bodies for the force transmittal, which are inserted between opposite arranged cam curves and rotate around axes extending radial to the transmission shaft. The roll bodies are guided by rings and are held at a mutual distance to each other and with spring force in the axial center region between the cam sleeves, wherein the spring is arranged coaxial on the extended hub.