Pot-spinning device having magnetic bearing providing radial and axial support

US5385007A · kind A · utility

Assignee

• W. Schlafhorst AG & Co. · DE

Inventors

• Robert Hartel · Aachen, DE
• Karl-Josef Brockmanns · Anrath, DE

Key dates

• Filing date: Mar 15, 1993
• Grant date: Jan 31, 1995
• Expiry date: Mar 15, 2013

Classification

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

Abstract

A pot spinning device is disclosed for spinning textile yarn in which the spinning pot has an inner wall and the pot is driven by a magnetic bearing device for rotating the spinning pot. The magnetic bearing device provides radial and axial support of the pot. The magnetic bearing device may comprise at least one electromagnet disposed at each end of the spinning pot. At least the ends of the spinning pot may be formed of a magnetic material positioned to interact with the magnetic bearing device. The magnetic material may be formed as an annularly magnetic portion at each end. At least one sensor may be connected to the magnetic bearing device for detecting a displacement of the spinning pot. The magnetic bearing device may have a control device for stabilizing the position of the spinning pot against displacement due to exterior forces. The spinning pot may comprise a rotor of the electric motor. The electric motor may include an annular rotor on the spinning pot. The device for rotating may be an electric motor having a short circuit rotor and a stator. The rotor may be formed of an electrically conducted material surrounding the spinning pot in the area of the stator and wherei…