Patent ID: 8851276
Filing Date: 2014-10-07
Classification: A01D,B65G,F15B

Abstract:
1. A device for tensioning at least one tension mechanism of a conveying device, said tension mechanism comprising a multiplicity of feeder aids extending between a drive wheel and at least one guide wheel, at least one hydraulic cylinder, including a hydraulic piston, for adjusting a wheel center distance between the at least one guide wheel and the drive wheel in order to change the tension of the tension mechanism, wherein the at least one hydraulic cylinder acts directly on the guide wheel, wherein, in order to tension the tension mechanism, the hydraulic piston is displaceably disposed in a pressure chamber and acted upon by pressure medium from a pressure source via a check valve that opens toward the pressure chamber, wherein, once a blocked state of the check valve is reached, the pressure chamber is connected to a device for receiving a defined volume of pressure medium, and wherein the check valve is a non-return valve, and wherein a closing body of the non-return valve is spring-loaded in the direction of a pressure-medium supply bore and forms one assembly in combination with the device for receiving the defined volume of pressure medium.