Caterpillar Global Mining Europe Gmbh

Dbt Gmbh

Karl-Heinz Schurer

Andreas Pluszynski

Hans Meya

Wilfried Weigel

Reinhold Bruggemann

Thomas Tegethoff

Gerold Wendler

A link chain for chain conveyors for use in mining, with vertical chain links having a constant cross-sectional profile provided on the inside with a circular arc and on the outside preferably with a flat section, and with horizontal chain links having front sections, longitudinal limbs and an oval inner opening. The longitudinal limbs on the outer sides comprising at least adjacent to the upper and lower sides a spherical shaped surface and/or the horizontal chain links comprising on the transition of the front sections into the longitudinal limbs corner areas, wherein the longitudinal limbs on their top side and bottom side at least in the corner areas are partially provided with a cavity.

Link chain for chain conveyors and horizontal chain links therefor

A drive and tensioning unit for a scraper chain conveyor, in particular a face conveyor for drum cutter-loader mining apparatus, includes a telescopically configured machine frame having a machine frame base and a machine frame head, which is displaceable relative to the machine frame base by at least one hydraulic cylinder and has bearing recesses for supporting a chain drum shaft. Each hydraulic cylinder is supported at one end in a connecting joint on a side board of the machine frame head and at the other end in a connecting joint on a side wall of the machine frame base. The connecting joints include a recess in the side boards and the side walls and bearing brackets detachably anchorable in the recesses. Each of the recesses provided in the side boards and in the side walls are structurally identical.

Drive and tensioning unit for a scraper chain conveyor

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

A device for detection and adjustment of the tension of a scraper chain of a chain conveyor, in particular of a face conveyor, having a tensionable return station, on which a spoked chainwheel to reverse the scraper chain, having chain links and scrapers attached thereto, is supported between the bottom race and the top race. The devices including a sensor which determines the tension of the scraper chain at the return station and the sensor having a swivellable sensor body coupled with a shaft encoder. The sensor body being in the top race and in contact with the upper face of the scraper chain in a measurement zone with provision being made in the measuring zone for vertical play for the run of the scrapers and/or the chain links.

Growing community of inventors

Herne, Germany

Karl-Heinz Schurer