Gewerkschaft Eisenhutte Westfalia, Gmbh

Dbt Gmbh

Dbt Deutsche Bergbau-technik Gmbh

Reinhold Bruggemann

Gerhard Merten

Dieter Grundken

Siegfried Schmidt

Karl-Heinz Schurer

Andreas Pluszynski

A chain wheel arrangement for driving or reversing stations of underground scraper chain conveyors, comprising a chain wheel (), a chain-wheel shaft () comprising a splined portion () between two offset-diameter shaft stub portions and to which the chain wheel () can be fastened in rotational engagement by axial sliding on to it, also comprising bearing shells () receiving bearings for the chain-wheel shaft (), disposed on each side of the chain wheel () and adapted to be fastened in bearing-shell recesses, open at the edges, in the side cheeks of the driving or reversing station, also comprising bearing support rings () which abut the outer cage (B) of the bearings (), and securing means comprising spacer sleeves () for axially securing the chain wheel () relative to the splined portion (), in which the spacer sleeves () rest loosely between the bearings (A) and the chain wheel (), wherein a clamping cover () is fastened to at least one shaft end () and presses against a clamping sleeve () which clamps a spacer ring () against the associated bearing ().

Chain wheel arrangement

Toggle securing device for toggle joints of conveyor pans for chain conveyors, guide pans of winning machinery guides and the like with a securing plate which secures the toggle in its receiving pocket, laterally overlaps it at the end, can be introduced from the side into a respective insertion pocket by its two ends and can be caught in one of the two superimposed insertion pockets by a plastic pin which passes through a receiving hole in one end region of the securing plate and penetrates a locking orifice in the associated insertion pocket. In order to provide a securing plate for toggle joints, which can be used for toggle joints of known designs, either using a fixing sleeve or using a plastic pin as a securing element, the securing plate has a drive-in hole for a fixing sleeve at its other end region and is designed in such a way that it can be caught on the locking orifice of the insertion pocket either by means of the plastic pin or by means of the fixing sleeve after being rotated through 180.degree..

Toggle securing device for toggle joints in chain conveyors and the like

A transfer station assembly is provided for transferring mineral material from a longwall scraper-chain conveyor to a roadway scraper-chain conveyor. The transfer station includes a box frame, in which the upper run of the roadway conveyor is guided between the upper and lower runs of the longwall conveyor. Guide bars are provided for guiding the scrapers of the scraper assembly of the roadway conveyor within the box frame. The guide bars for the roadway conveyor are detachably secured to the box frame so as to be readily releasable and replaceable by other guide bars, whereby roadway conveyors of different types and/or widths can be connected to the box frame.

Transfer station

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Dortmund, Germany

Reinhold Bruggemann