摘要:
A tail station for a scraper chain conveyor, in particular a transfer conveyor, including a machine frame having bearing holders, which are open at the margins, for a demountable chain wheel assembly, including a chain wheel assembly having a chain wheel shaft, a reversing chain wheel and bearing shells for the rotatable mounting of the chain wheel shaft, and having a deflector element assigned to the reversing chain wheel, the bearing holders being configured on cantilever arms connected to the machine frame and are upwardly open, wherein the chain wheel assembly is provided on the bearing shells with bearing blocks, which can be inserted with horizontal motional play into the bearing holders and are horizontally displaceable in the bearing holders between a removal position and a locking position.
摘要:
A tail station for a scraper chain conveyor, in particular a transfer conveyor, including a machine frame having bearing holders, which are open at the margins, for a demountable chain wheel assembly, including a chain wheel assembly having a chain wheel shaft, a reversing chain wheel and bearing shells for the rotatable mounting of the chain wheel shaft, and having a deflector element assigned to the reversing chain wheel, the bearing holders being configured on cantilever arms connected to the machine frame and are upwardly open, wherein the chain wheel assembly is provided on the bearing shells with bearing blocks, which can be inserted with horizontal motional play into the bearing holders and are horizontally displaceable in the bearing holders between a removal position and a locking position.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
The invention relates to a sprocket wheel for underground mining, especially for chain-driven chain scraper conveyors, with a first ring 2 of first tooth elements 5 distributed uniformly about the circumference of the sprocket wheel body 1, at least one second ring 3 or 4, disposed axially offset to the first ring 2, having further tooth elements 6 or 7, distributed uniformly about the circumference. The flanks of the tooth elements that face one another are provided with pockets 13, that serve as contact surfaces for the horizontal chain links 9. In order to increase the service life of the sprocket wheel, the contact surfaces in the pockets 13 of each tooth element 5, 6, 7 comprise a wear inlay 20 of wear-resistant material.
摘要:
The invention relates to 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 comprises having a sensor which determines the tension of the scraper chain at the return station. According to the invention, the sensor comprises a swivellable sensor body coupled with a shaft encoder, which sensor body in the top race is 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. The provided play preferably is being free or unlimited.
摘要:
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.
摘要:
The invention relates to a drive and tensioning unit for a scraper chain conveyor, in particular a face conveyor for drum cutter-loader mining apparatus, comprising a telescopically configured machine frame (10) having a machine frame base and a machine frame head, which is displaceable relative to the machine frame base by means of at least one hydraulic cylinder (20) and has bearing recesses (6) for supporting a chain drum shaft, each hydraulic cylinder (20) being supported at one end in a connecting joint (30) on a side board (4) of the machine frame head (2) and at the other end in a connecting joint (30′) on a side wall (15) of the machine frame base (1). in order to improve the unit, the connecting joint (30) comprises a recess in the side board (4) an/or in the side wall (15) and a bearing bracket detachably anchorable in the recess (31), wherein structurally identical recesses are provided in both side boards (4) and in both side walls (15).
摘要:
A chain wheel arrangement for driving or reversing stations of underground scraper chain conveyors, comprising a chain wheel (1), a chain-wheel shaft (3) comprising a splined portion (11) between two offset-diameter shaft stub portions and to which the chain wheel (1) can be fastened in rotational engagement by axial sliding on to it, also comprising bearing shells (5) receiving bearings for the chain-wheel shaft (3), disposed on each side of the chain wheel (1) 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 (26) which abut the outer cage (4B) of the bearings (4), and securing means comprising spacer sleeves (16) for axially securing the chain wheel (1) relative to the splined portion (11), in which the spacer sleeves (16) rest loosely between the bearings (4A) and the chain wheel (1), wherein a clamping cover (30) is fastened to at least one shaft end (13) and presses against a clamping sleeve (29) which clamps a spacer ring (25) against the associated bearing (4).