Patent ID: 9731906
Date: 2017-08-15
CPC Classifications: B65G

Claim:
1. A method for operating a conveyor belt scraping device for a conveyor belt of a conveyor belt system, wherein the conveyor belt scraping device comprises: a support shaft and at least one scraping segment arranged on the support shaft wherein the scraping segment comprises a holding end which is connected to the support shaft in a positive locking manner so as to transmit torque, and a scraping end which is situated opposite the holding end, at least one holding bearing which is arranged on a stationary mounting in which the support shaft is rotatably mounted, at least one drive element of an immovably arranged electric drive motor which is coupled to the support shaft so as to transmit torque, a control means for the electric drive motor, wherein as a result of correspondingly actuating the electric drive motor and moving the drive element the scraping segment is moved with its scraping end against the conveyor belt or is removed from the conveyor belt, the method comprising: determining a force of the electric drive motor necessary for a desired pretension of the scraping end of the scraping segment against the conveyor belt and regulating the force with the control means via a current drawn from the electric drive motor, setting a particular motor current as a boundary value for the desired pretension of the scraping end of the scraping segment, and driving the electric drive motor again and again at predetermined or determinable time intervals against the conveyor belt, in each case until the particular motor current set as a boundary value for the desired pretension is reached.