Inductively heatable godet

US4304975A · kind A · utility

Assignee

• Barmag Barmer Maschinenfabrik Aktiengesellschaft · DE

Inventors

• Erich Lenk · Remscheid, DE
• Karl-Heinz Bauer · Graben-Neudorf, DE

Key dates

• Filing date: Dec 21, 1979
• Grant date: Dec 8, 1981
• Expiry date: Dec 21, 1999

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D02J13/00
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

An improved means for mounting the induction coil of an inductively heated, rotatable godet about the magnetic core thereof so as to prevent internal overheating and preferably also to avoid any movement or play between the core and the coil as caused by heat expansion and vibration during operation of the godet. The improvement comprises cooling means for cooling the laminated pack acting as the magnetic core and for thermally isolating the pack from the coil and outer godet shell or casing, said cooling means including at least one hose-like tube wound around the laminated pack with means to conduct a fluid coolant therethrough. An elastic intermediate member is preferably introduced at some point between the coil and magnetic core in order to compensate for any unequal thermal expansion of these elements in the axial and/or radial directions.