Method and a device for tensioning endless drive belts

US5641058A · kind A · utility

Assignee

• Westfalia Becorit Industrietechnik GmbH · DE

Inventors

• Gerhard Merten · L Atkinson Lane, DE
• Bernd-Christian Pago · Olfen, DE
• Jens Titschert · Grafenau, DE

Key dates

• Filing date: Apr 11, 1995
• Grant date: Jun 24, 1997
• Expiry date: Apr 11, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65G23/44
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The invention employs pressure and displacement sensors for the automatic monitoring and adjustment of the pre-tension of endless belts, in the form of chains or the like, which sensors determine the pressure in the cylinder space and the movement of the piston of the tensioning cylinder, and the measuring signals from which sensors are evaluated by an electronic evaluation and actuation unit. In this respect the evaluation and actuation unit calculates from the measuring signals the changes in pressure which occur over a predetermined partial stroke of the piston of the tensioning cylinder, wherein these changes in pressure reflect the state of tension of the chain belt. When the chain tension is incorrect, the evaluation and actuation unit can therefore control the tensioning cylinder so that the optimum chain tension is set automatically.