Gewerkschaft Eisenhutte Westfalia, Gmbh

Dbt Gmbh

Dbt Deutsche Bergbau-technik Gmbh

Westfalia Becorit Industrietechnik Gmbh

Caterpillar Global Mining Europe Gmbh

Dbt Automation Gmbh

Bucyrus Europe Gmbh

Bucyrus Dbt Europe Gmbh

Dbt Deutche Bergbau-technik Gmbh

Deutsche Bergbau-technik Gmbh

Kammann, Jochen

Merten, Gerhard

Wollenhaupt, Peter

Gerhard Merten

Bernd Steinkuhl

Hans Meya

Adam Klabisch

Frank Fischer

Oswald Breuer

Jorg Wirtz

Martin Broszat

Christoph Rassmann

Siegfried Schmidt

Horst Schlusener

Olaf Losbrodt

John Cobley

Alister McAndrew

Dirk Vorsteher

Alfred Hefferan

Norbert Hesse

Wolfgang Peters

Siefgried Schmidt

Alois Hauschopp

Jörg Wirtz

Werner Bohle

Werner Georg

Ulrich Paschedag

Wilfried Mertens

Karl-Heinz Schürer

Thomas Hoelken

Ingo Pruss

Gerhard Siepenkort

Klaus Duhnke

Kunibert Becker

Jens Titschert

Uwe Tillessen

Detlef Hahn

Sebastian M Mundry

Franz Roling

Gunter Lagodka

Manfred Ziegler

Rainer Benecke

Werner Langenberg

Egon Pfefferle

Willy Heyer

Herbert Beyer

Jürgen Berghoff

Arno Breimhorst

Dirk Abel

Reinhold Bruggemann

Peter Herkenrath

Hans-Dieter Schneider

Ulrich Mohn

Alfred Marquart

Markus Lenzing

Jochen Kammann

Bernd-Christian Pago

Werner Rafael

Erwin Haese

Helmut Langenberg

Steinkuhl Bernd

Gerhard Nickel

Heinrich Cwielong

Manfred Bäumler

Uwe Böker

Nicole Kostiza

Martin Hermann

Siegfrid Schmidt

Kauu Brüggemann, Legal Representative

Johannes Weβelmann

Ulrich Pletsch

Peter Wollenhaupt

An extraction device, particularly for mining, having two drive stations and a drive chain which extends between the sprockets thereof. So that hanging chain or chain wear to a conveyor chain, in the case of a conveyor device, or to a plow chain, in the case of a plow device, can be detected, magnetic sensor units for detecting at least one chain condition of the drive chain are provided, wherein each sensor unit includes a transmitter, which is formed by a static or dynamic magnetic field generator, and a detector field, which is provided with a plurality of magnetic field detectors, as a detector, the detector and the transmitter being arranged to the side of a passage for the run of the drive chain that is to be scanned. The invention also relates to a method for controlling an extraction device for preventing hanging chain.

Extraction device, particularly for mining, and method for controlling the extraction device

A link chain or a chain link for scraper chain conveyors with vertical and horizontal chain links which are interlinked in an articulated manner for scraper chain conveyors for use in mining. In particular to horizontal chain links with front sections with a straight face zone and with longitudinal limbs, which connect the front sections around an oval inner opening and which are provided on their outer surfaces with a recess, wherein the rear sides of front sections delimiting the inner opening form a contact zone for circular arcs of vertical chain links. In order to improve the service life of the link chain, the rear sides, which face oval inner opening, of front sections are provided with a surface which has a hollow, which forms a central region of the contact zone, between a fillet cambered in a crowned manner.

Link chain for chain conveyors and horizontal chain links therefor

Chain return arrangement and sprocket and chain assembly employed therein with the bow flanks of the horizontal chain links () of the chain assembly () exhibiting a concave trough at least below an equatorial line () and the chain link pockets () of the sprocket () that receive the horizontal chain links at their tooth flanks () in the contact areas () to the chain links () having a convex crown shape to match the troughed bow flank. This significantly reduces the surface pressures between the two parts.

Chain drive or return arrangement and chain assembly and sprocket employed therein

The invention relates to a link chain for scraper chain conveyors with vertical chain links which are interlinked in an articulated manner and horizontal chain links, wherein vertical chain links have around the full circumference a constant cross-sectional profile provided on the outside with a flat section and on the inside with a circular arc and horizontal chain links have front sections which have a straight front zone, wherein longitudinal limbs, which connect front sections, of horizontal chain links are provided on their outer faces with a recess. In order to improve the running characteristics of link chain in the event of low surface pressures between chain wheel and horizontal chain links, horizontal chain links have, on both sides in recesses, entrainment means for positive-locking entrainment of scrapers which can be connected to horizontal chain links and/or cross-sectional profile of the vertical chain links is in each case provided with a bevel at the transition of the flat section into the circular arc. The invention also relates to a chain wheel which is suitable for this chain.

Link chain for chain conveyors and chain wheel thereof

The invention relates to scrapers for link chains of in particular double center scraper chain conveyors, comprising a one-part scraper body with a head web connecting two lateral scraper wings and at least one insertion pocket for insertion of a horizontal chain link of the link chain and securing scraper by means of a detachable scraper-securing element. In order to improve the entrainment of scrapers connected to the horizontal chain links and to be able to use the scrapers even with novel link chains, grooves extend in insides of scraper wings and outsides of an intermediate web over the height of limb beds up to head web and form receivers for entrainment projections on the outer surfaces of limbs of horizontal chain links. The invention also relates to scraper-securing element.

Scrapers for link chains of scraper chain conveyors and scraper-securing element thereof

A shearer-loader drive subassembly having a rotatably mounted drive sprocket, a transmission gear connected to the sprocket in a rotationally fixed manner, at least one releasable guide shoe provided for guiding the shearer loader on a rack arrangement, and a housing base plate, on which a bearing tube is supported and fastened in a rotationally fixed manner. The guide shoe is fastened by a pin which passes through the inner bore of the bearing tube and forms the pivot bearing for the guide shoe. A bearing sleeve rotatably supported on the bearing tube by a bearing may be arranged between the drive sprocket and the bearing tube, onto which bearing sleeve the drive sprocket may be pushed in a releasable manner.

Shearer-loader drive subassembly and guide shoe for it

A method for mining and a planer installation for the mining of coal, with a coal planer that can be moved by a planer chain that can be driven via a drive chain wheel of a drive station for the planer chain and that is deflected at a deflection chain wheel of a driveless deflection station. The coal planer is moved back and forth reversibly between the drive station and the deflection station by the planer chain to avoid the occurrence of sag and to minimize the necessary size of an auxiliary drift to be opened. The deflection chain wheel is mounted on a slide that can be displaced in the direction of movement of the coal planer by a tension device.

Method for the mining of coal and coal planer installation

An entry conveyor including a conveyor pan formed by a plurality of pan sections that are hingeably connected to each other, at the two ends of which conveyor pan drive stations and/or return stations for a scraper chain are provided. Each pan section includes a top strand delimited by lateral profiles and the conveyor base and a bottom strand for the scraper chain as well as receiving elements for a pan section connecting mechanism, which elements are disposed outside of the lateral profiles. A pan strand including a plurality of pan sections that are disposed behind each other is provided in the conveyor pan, which sections are hingeably coupled via a center swivel bearing disposed on the center longitudinal axis of the conveyor pan or the pan sections. The invention also relates to the pan sections with the center swivel bearings.

Entry conveyor and pan section for the same

A slide shoe for a mining winning machine is disclosed. The slide shoe includes a slide shoe body attached to the mining winning machine, a sliding area located on the slide shoe body and including a wear thickness, and at least one sensor. The sensor is scannable by wireless signal transmission. A dimension of the wear thickness decreases due to wear during operation, and a sensor signal of the sensor changes when the dimension of the wear thickness of the sliding area decreases below a predetermined minimum thickness.

Slide shoe for mining winning machine

The present invention relates to a conveyor pan () for underground face or gate conveyors, with a pair of side parts () comprising cast parts which include cast vertical arms () extending over the height of the bottom run () and the top run (), a lower cast flange arm () extending outwards to the rear, a cast foot flange () extending inwards onto whose lower side a base plate () is welded which closes the bottom run to the bottom, as well as on the end faces cast accepting elements () for the means of joining conveyor pans, and with a conveyor pan base () preferably comprising a rolled sheet. This has tongue like segments () on both long sides, which engage in cut-out slots () in the vertical arms () of the side parts () and are welded to them on the outer of the side parts ().

Conveyor pan

A drive system for chain sprocketsof chain drives, more particularly for driving chain scraper conveyors or chain-drawn ploughs for underground mining, with a drive assembly formed of an asynchronous motor and a gear mechanism, the gear mechanismbeing designed as overload gearing and having a controllable multiple-disk clutch for overload equalisation with which the force flow between the asynchronous motor and the chain sprocket can be disconnected. The asynchronous motor comprises a frequency converter motorand in the drive assembly between the motor shaft and the gear mechanisma two-gear toothed wheel gear mechanism is arranged as a forward gear mechanism, with a starting gear position and a normal gear position, with which in the starting gear position the breakaway effect required for starting the loaded chain scraper conveyor or for releasing the plough can be attained.

Driving device for sprocket wheels of chain drives

The subject matter of the present invention relates to a plow guide for a chain-pulled plow for use in underground mining operations, with plow guide troughsandhaving multiple parts and being connectable to one another by means of coupling elements so as to be tension-proof and angularly movable. Each plow guide trough has a center pieceandwith superposed chain guide channelsC,B,D, to both sides of which center piece an end piece,andis joined by welding, which end piece is a single-piece casting with superposed chain channel sections that are separated by a sliding spacer piece that is cast on. To make available a high-performance Gleithobel system with a high tool life, cast-on holding pocketsand&#x2014;which are open on the working face side&#x2014;for toggle connections with togglesas coupling organs are disposed on end piecesand. (FIG.)

Plow guide for a chain-pulled plow

The invention relates to a conveyor pan () for underground face and gate conveyors, with a bottom run () and a top run () for the guidance of a scraper of a scraper chain, with a frame work construction () which has side walls () comprising cast parts firmly joined to each other, with an intermediate flange () and an upper moulded flange lug () extending outwards from it and a lower moulded flange arm () as well as a moulded foot flange () extending inwards and bordering the bottom run partly to the side. In accordance with the present invention the cast part () has at least one step () on the inner wall () of the intermediate flange () for supporting and welding on a plate (B) forming an intermediate plate, below which the intermediate arm () and the flange lug () form a profile strengthening (), and above which the intermediate arm () borders to the side an accepting space for the acceptance of an exchangeable tray () having rolled side profiles () welded to a conveyor base ().

The conveyor pan according to the present invention has a framework construction () having the bottom run () and an interchangeably constructed exchangeable tray () forming the top run (), which can be lifted out, vertically supported on the framework (). The framework construction () of the conveyor pan () has two roiled U-profiles forming the side walls of the conveyor pan, each of which has a vertically extending intermediate arm (), an upper, outwards facing flange arm () and, lower outwards facing flange arm (). The identically constructed but mirror imaged iron U-profiles (), i.e. with the flange arms (), () arranged facing away from each other, are joined firmly to each other by means of welded on plate strips (A,B) at about half height on the inner wall () of the intermediate arm (), whereby the plate strips (A,B) leave an opening () inside the conveyor pan (), which, with the exchangeable tray () removed, can serve as an inspection opening for the scraper chain, not shown, circulating in the bottom run () and equipped with scrapers. In the free space between the flange arms () toggle pockets are welded in with a positive engagement, which additionally stiffen the iron U-profiles and the plate strips (A,B) are supported by means of bottom run rails () on a continuous base plate () welded on beneath the iron U-profile ().

Growing community of inventors

Lünen, Germany

Gerhard Merten