Power supply arrangement for pulled mining machines

US4564241A · kind A · utility

Assignee

• M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft · DE

Inventors

• Joachim Holz · Dortmund, DE
• Wolfgang Meier · Jüchen, DE
• Kurt Ogorek · Oberhausen, DE
• Heinrich Goris · Hamminkeln, DE
• Karl H. Schwarting · Voerde, DE

Key dates

• Filing date: Jun 21, 1983
• Grant date: Jan 14, 1986
• Expiry date: Jun 21, 2003

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21F17/04
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A device for extending flexible power supply lines for mining machines which are guided on a conveyor structure and moved back and forth along a longwall by means of a traction element which includes a coal strand and a return strand extending with an enclosed space comprising a housing secured to the conveyor and enclosing a load strand. A return and a cable channel is alongside the load strand channel, with the flexible supply lines being stored at the ends of the longwall towed along by a mining machine through the cable channel. The housing is secured to the conveyor structure and open at one side, and an idle roller is mounted in the housing in the cable channel. The supply lines are supported on the idle rollers. The mining machine is moved by a traction element and the supply lines bear against the traction element at the open side of the cable channel.