Patent · US Expired

Method for controlling drives of conveying machinery

US6029799A · kind A · utility

19Cited by

4References

5Claims

0Family size

Assignee

DBT Automation GmbH · DE

Inventors

Wilfried Weigel · Werne, DE
Arno Breimhorst · Hagen, DE
Jens Titschert · Grafenau, DE

Key dates

Filing date	Jul 8, 1998
Grant date	Feb 29, 2000
Priority date	—
Expiry date	Jul 8, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65G23/36
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A method for controlling the main and auxiliary drives of conveyors, for example, in underground mining. The drives are controlled as a function of the loading of the conveyor in such a way that in a low load range of the conveyor the auxiliary drive produces a higher output (20.sub.I) than the main drives and as the load increases the output advantage of the auxiliary drive in relation to the main drives is reduced. This special load distribution to auxiliary and main drives has the advantage that sagging of the conveyor element, for example the chain of a scraper chain conveyor in the inaccessible and concealed lower strand, close to the main drive, can be prevented. The risk of damage to the machine frame or conveyor chain is thereby reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.