Drive system having a pin drive chain for a cutting machine for underground mining
AssigneeDBT Deutsche Bergbau-Technik GmbH
InventorsGerhard Merten, Frank Fischer, Jorg Wirtz
Life of this patent
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Abstract
In the drive system according to the invention for a cutting machine which can be moved along a chain conveyor and has a pin drive chain arranged in a chain receptacle of the chain conveyor, the pin drive chain is attached at each of its two ends to a hydraulic tensioning cylinder device, with the aid of which the chain slackness which forms in the pin drive chain can be compensated. At the same time, holding devices, such as end stops, are provided in the region of the tensioning cylinder devices, which holding devices support or fix the chain section of the pin drive chain which is respectively under tensile loading.
Claims12
A drive system for a cutting machine which can be moved along an advanceable chain conveyor, for underground excavation, said cutting machine having a driven chain wheel and said conveyor having a chain receptacle extending along its length;
- said drive system comprising:
- a pin drive chain having two ends, said pin drive chain being disposed in said chain receptacle of said conveyor and being engageable by said chain wheel of said cutting machine whereby the cutting machine can be driven in either direction along said conveyor with one end of the chain under driving tension and the other end slack;
- hydraulic tensioning devices for the respective ends of said pin drive chain;
- and
- respective holding devices associated with said hydraulic tensioning devices;
- said hydraulic tensioning devices being operable to tension respective ends of said pin drive chain when slack, and said holding devices operable to hold said pin drive chain against said driving tension.
Dependencies are inferred from the claim text.