Drive and mounting for an open-end spinning unit

US4543780A · kind A · utility

Assignee

• BBC Brown, Boveri & Company Ltd. · CH

Inventors

• Alfred Muller · Krefeld, DE
• Harry Seiffert · Baden, CH

Key dates

• Filing date: Dec 15, 1982
• Grant date: Oct 1, 1985
• Expiry date: Dec 15, 2002

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2340/18
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In order to be able to achieve, in yarn manufacture, the very high speeds required by the textile industry in open-end spinning devices, for the purpose of increasing production, and in order to achieve high operating reliability and a long life of the spinning devices, the rotor which rotates at high speeds and is subject to a variable imbalance and which is guided in gas-dynamic radial plain bearings is guided in a bearing carrier which is elastically pivotable in relation to the rigid bearing journal. At the same time, the bearing journal is connected, but so as to be elastically pivotable, to the bearing carrier via a bearing-body joint. A first gas-dynamic radial plain bearing, which is located in the region in the center of gravity of the rotor, is arranged on the bearing carrier, and a second gas-dynamic radial bearing is arranged at the opposite end of the bearing carrier. An elastic support is provided in the region of the second gas-dynamic radial plain bearing for assisting the elastically pivotable mounting. As a result of this constructive measure, the inertia forces and gyroscopic moments applied by the rotor are decoupled from the radial plain bearings.