The technical field of engineering chains, specifically chains for the transport of raw material is provided, which purpose is to reduce the number of moving parts usually used in engineering chains with outboard wheels, without sacrificing optimal performance. To this end, it provides a straight plate chain mechanism with external and internal pitch, with a ratchet mechanism between the pitches, making the chain self-supporting and allowing it to only rotate in the internal direction when it has direct interaction with the sprocket, thus considerably reducing the possible catenaries.

A connector block for connection between first chain units and second chain units which alternately form portions of a conveyor chain. The connector block is provided using a first block body and a second block body each formed into a U-shaped metal plate. Each block body includes a base plate and side plates, and tabs formed at distal ends of side plates. Tabs are configured for interfitting placement in depressions formed in the base plate of the opposing block body. Side plates of the first block body and side plates of the second block body, are sized, shaped, and joined in secure interlocking engagement, and wherein the first tab receiving depressions each securely position therein a second tab bent for interfitting engagement therewith, and wherein the second tab receiving depressions each securely position therein a first tab bent for interfitting engagement therewith. All side plates further include holes defined by edge walls, for secure engagement with a pivot pin for connection with a first chain unit or a second chain unit.

The present disclosure relates to a flight bar clamp for connecting a flight bar to at least one chain link of at least one conveyor chain of a chain conveyor used in underground mining. The flight bar clamp comprises a clamp main body extending along a clamp longitudinal axis, and at least one chain link engaging portion disposed at the clamp main body configured to engage with one chain link. The at least one chain link engaging portion of the flight bar clamp includes a sacrificial anode reception, and a sacrificial anode body disposed in the sacrificial anode reception. The sacrificial anode body may protect the flight bar clamp, the flight bar and the chains from contact corrosion.

The present disclosure relates to a flight bar clamp for connecting a flight bar to at least one chain link of at least one conveyor chain of a chain conveyor used in underground mining. The flight bar clamp comprises a clamp main body extending along a clamp longitudinal axis, and at least one chain link engaging portion disposed at the clamp main body configured to engage with one chain link. The at least one chain link engaging portion of the flight bar clamp includes a sacrificial anode reception, and a sacrificial anode body disposed in the sacrificial anode reception. The sacrificial anode body may protect the flight bar clamp, the flight bar and the chains from contact corrosion.

Curved magnetic guide for guiding the chain of a conveyor chain along a curvilinear transport direction including a pair of first guide profiles arranged spaced apart and extending in a continuous manner along a respective development direction concentric to the curvilinear transport direction, a support structure for supporting the first guide profiles having a plurality of box-shaped bodies, the box-shaped bodies being arranged in succession one after the other and spaced apart from one another along the curvilinear transport direction, where each of the box-shaped bodies houses at least one magnetic body and has an upper surface and a lower surface opposite one another, where the upper surface is provided with a pair of first constraining projections that are spaced apart and faced with distances between centers substantially equal to the distance between the development directions where the first constraining projections of the plurality of box-shaped bodies define two rows of first constraining projections that extend, spaced apart from one another, along a respective the development direction, where each of the first guide profiles is coupled with the first constraining projections aligned along one of the two rows, where the guide defines a forward guide for guiding the forward branch of the chain, the forward guide having a forward channel adapted for receiving the hinging portions of the links and which is laterally delimited by the first guide profiles of the at least one pair, where the first guide profiles each defines a sliding surface for the plate-shaped portion of the links to slide thereon, and where the magnetic bodies interact with the links to attract the links of the chain with the part of their plate-shaped portions against the sliding surfaces defined by the first guide profiles.

A conveyor chain and horizontally oriented guide wheel having a hub, an outer wheel rotatable about the hub and a bearing race between said hub and said outer wheel. An oiling gap, the top opening of which is located radially inwardly of the bearing race, extends outwardly and downwardly and opens into said bearing race, such that a direct downward path to the bearings is eliminated. The hub and the inside of the outer wheel have opposed frustroconical surfaces which define a frustroconical path from the top wheel surface oiling gap opening to the wheel bearings. The guide wheel also includes a blow out gap on the bottom side which is formed by a blow out path which becomes wider than the bearing race as it proceeds downwardly to its opening at the bottom of the wheel, making it easier for debris to be blown out of the bearings either from air blown down through the oiling gap at the top or blown up from the blow out gap at the bottom.

A conveyor chain and horizontally oriented guide wheel having a hub, an outer wheel rotatable about the hub and a bearing race between said hub and said outer wheel. An oiling gap, the top opening of which is located radially inwardly of the bearing race, extends outwardly and downwardly and opens into said bearing race, such that a direct downward path to the bearings is eliminated. The hub and the inside of the outer wheel have opposed frustroconical surfaces which define a frustroconical path from the top wheel surface oiling gap opening to the wheel bearings. The guide wheel also includes a blow out gap on the bottom side which is formed by a blow out path which becomes wider than the bearing race as it proceeds downwardly to its opening at the bottom of the wheel, making it easier for debris to be blown out of the bearings either from air blown down through the oiling gap at the top or blown up from the blow out gap at the bottom.

A conveyor condition monitor, for use with a conveyor comprising a plurality of trollies (12) running along a conveyor rail (14) and linked to one another by a chain link system, is disclosed. The monitor comprises a conveyor monitoring station (3) and a first deformation sensor (5a, 5b). The deformation sensor (5b) is in communication with the conveyor monitor, and is adapted to notify the conveyor monitor of the presence of a deformed (13b) trolley (12) in the conveyor.

A conveyor condition monitor, for use with a conveyor comprising a plurality of trollies (12) running along a conveyor rail (14) and linked to one another by a chain link system, is disclosed. The monitor comprises a conveyor monitoring station (3) and a first deformation sensor (5a, 5b). The deformation sensor (5b) is in communication with the conveyor monitor, and is adapted to notify the conveyor monitor of the presence of a deformed (13b) trolley (12) in the conveyor.

A lubrication system for a roller chain. The lubrication system provides a lubricant reservoir, at least one piston pump, and synchronization means. The synchronization means has engaging means dedicated to mechanically mesh with roller chain in motion, and actuating means fastened in motion with the synchronization means the actuating means being in constant mechanical cooperation with a piston pump.