Method for monitoring a conveyor belt and system therefor

US6047814A · kind A · utility

Assignee

• Contitech Transportbandsysteme GmBH · DE

Inventors

• Rainer Alles · Höchst im Odenwald, DE
• Thorsten Wach · Wunstorf, DE

Key dates

• Filing date: Oct 31, 1997
• Grant date: Apr 11, 2000
• Expiry date: Oct 31, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65G43/02
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for monitoring a continuous revolving conveyor belt (4) having a connecting region (8). The connecting region (8) is monitored with the aid of two transponders (12) and (14). One of the transponders is arranged forward of the connecting region (8) and the other transponder is connected rearward of the connecting region (8). Both transponders (12) and (14) transmit respective signals to an external transmitter/receiver unit 16 wherein a conclusion is drawn as to the spacing of the two transponders (12) and (14) on the basis of the time-dependent spacing of the two signals. If the spacing s of the transponders (12) and (14) exceeds a pregiven amount, then a conclusion is drawn by the external transmitter/receiver unit (16) as to a critical change in length of the connecting region (8) and corresponding measures are initiated.