Mineral mining installation with chain-tensioning system
AssigneeGewerkschaft Eisenhutte Westfalia
InventorsBernd Steinkuhl, Norbert Hesse
Life of this patent
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Abstract
A plough box containing a chain wheel driving a chain to propel a chain used to move a plough is mounted for displacement alongside a machine frame at one end of a scraper-chain conveyor. To adjust the tension in the chain a motor is operated to drive a self-locking worm gearing which employs a worm wheel meshing with a rack fixed to the machine frame and extending in the direction of the chain.
Claims13
In or for a mineral mining installation comprising a scraper-chain conveyor, a mineral wining machine movable along the conveyor, and a drive station at least one end of the conveyor, the drive station having a frame, a housing containing a rotatably driven chain wheel for propelling a chain used to drive the winning machine, the housing being displaceable relative to the frame to adjust the tension in the chain;
- a tensioning system for moving the housing, the tensioning system comprising at least one motor and a self-locking worm gearing driven by the motor.
Dependencies are inferred from the claim text.