摘要:
A conveyor pan connection of a scraper chain conveyor which conveyor pans having side profiles having profiled strips which form guide channels for scrapers and having outwardly directed flange strips. The conveyor pan connection includes coupling plates which are welded in between the outwardly directed flange strips at the ends of the side profiles of the conveyor pans, a first coupling plate projecting from an end of a first conveyor pan over a joint between conveyor pans and a second coupling plate at the opposing end of a second conveyor pan is set back with respect to the joint. Each coupling plate is comprised of a plate portion, an outwardly projecting coupling pin with a convexly rounded rear face, an outwardly projecting retaining lug on the same face and toward the end of the coupling plate distal to the joint, and one or more integral ribs on the rear side of the plate, such that when the coupling plate is in position on the side profile, the plate portion is concealed between the outwardly directed flange strips.
摘要:
The present invention relates to a conveyor pan (110) for underground face or gate conveyors, with a pair of side parts (101) comprising cast parts which include cast vertical arms (113) extending over the height of the bottom run (106) and the top run (107), a lower cast flange arm (111) extending outwards to the rear, a cast foot flange (112) extending inwards onto whose lower side a base plate (104) is welded which closes the bottom run to the bottom, as well as on the end faces cast accepting elements (114) for the means of joining conveyor pans, and with a conveyor pan base (105) preferably comprising a rolled sheet. This has tongue like segments (109) on both long sides, which engage in cut-out slots (135) in the vertical arms (113) of the side parts (101) and are welded to them on the outer of the side parts (101).
摘要:
A toggle retainer (10) for toggle connections of conveyor pans (5) for chain scraper conveyors, guide troughs of mining machines and similar, with a locking plate (30) engaging across the locking extension (23, 24) on the toggle head (21, 22) of a toggle (20) and securing the toggle (20) in the toggle accepting pocket (9) against falling out to the side, both ends (31, 32) of which can be introduced into an insertion pocket (11, 12) in the toggle acceptor (1) and which for retention in the locking cut-outs (13, 14) of the toggle acceptor (1) have at least one aperture (37) into which the shaft (41) of a locking element (40) engaging in one of the locking cut-outs (13, 14) can be inserted. The locking plate (30) is provided with transverse borings (38, 39), one of which opens into the aperture (37) and in which a securing clamp (50) engagement can be inserted or is inserted retaining the shaft (41) by positive.
摘要:
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..
摘要:
Chain return arrangement and sprocket and chain assembly employed therein with the bow flanks of the horizontal chain links (1) of the chain assembly (10) exhibiting a concave trough at least below an equatorial line (7) and the chain link pockets (52) of the sprocket (50) that receive the horizontal chain links at their tooth flanks (53) in the contact areas (55) to the chain links (1) having a convex crown shape to match the troughed bow flank. This significantly reduces the surface pressures between the two parts.
摘要:
Chain return arrangement and sprocket and chain assembly employed therein with the bow flanks of the horizontal chain links (1) of the chain assembly (10) exhibiting a concave trough at least below an equatorial line (7) and the chain link pockets (52) of the sprocket (50) that receive the horizontal chain links at their tooth flanks (53) in the contact areas (55) to the chain links (1) having a convex crown shape to match the troughed bow flank. This significantly reduces the surface pressures between the two parts.
摘要:
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.
摘要:
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.
摘要:
The invention relates to a conveyor pan (150) for underground face and gate conveyors, with a bottom run (102) and a top run (103) for the guidance of a scraper of a scraper chain, with a frame work construction (101) which has side walls (110) comprising cast parts firmly joined to each other, with an intermediate flange (111) and an upper moulded flange lug (112) extending outwards from it and a lower moulded flange arm (113) as well as a moulded foot flange (120) extending inwards and bordering the bottom run partly to the side. In accordance with the present invention the cast part (110) has at least one step (115) on the inner wall (114) of the intermediate flange (111) for supporting and welding on a plate (105B) forming an intermediate plate, below which the intermediate arm (111) and the flange lug (120) form a profile strengthening (149), and above which the intermediate arm (131) borders to the side an accepting space for the acceptance of an exchangeable tray (104) having rolled side profiles (180) welded to a conveyor base (184).
摘要:
A chain drum arrangement for a scraper-chain conveyor has a chain drum, which is connected at its end regions to two mutually aligned chain drum shafts mounted rotatably in a machine frame and, when uncoupled, can be removed from its fitted position transversely to its longitudinal axis from the machine frame. The chain drum shafts have terminal shaft journals projecting inwardly from side wall sections of the machine frame whereas the chain drum is provided, at its end regions, with substantially radially extending pockets with which it can be plugged onto the shaft journals and locked non-rotatably thereto The shaft journals are peripherally flattened to engage positively in the pockets and have external regions which act as locking claws fitting into undercut regions of the pockets when the drum is partly rotated around the journals. Closure members with screwed-on releasable locking plates serve to lock the drum on the journals.