Chain drive or return arrangement and chain assembly and sprocket employed therein
AssigneeDBT GmbH
InventorsAdam Klabisch, Gerhard Merten
Life of this patent
Estimating the term…
Abstract
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. (See FIG. 2)
Claims9
Chain assembly for plow systems in underground mining, the chain assembly comprising:
- vertical chain links;
- and
- horizontal chain links that include bows that in operative use of the chain assembly form power transmission zones with sprockets, the bows each including bow flanks linearly tapered towards each other in a first plane, the bow flanks being on opposite sides of a curved bow center section,
- wherein the bow flanks of the horizontal chain links have a concave trough in a second plane, the second plane being orthogonal to the first plane, the concave trough being at least below an equatorial line.
Sprocket for chain-drawn winning or transport facilities comprising:
- a plurality of sprocket teeth arranged uniformly around a circumference of the sprocket;
- and
- chain link pockets between each pair of adjacent teeth for receiving a horizontal chain link of a chain assembly, the chain link pockets being delimited by tooth flanks of the sprocket teeth,
- wherein the tooth flanks delimiting the chain link pockets have convex curved contact surfaces, at least in contact areas of the sprocket teeth with the horizontal chain link, and
- wherein opposing contact surfaces of each sprocket tooth are linearly tapered towards each other in a lateral direction across the circumference of the sprocket.
Dependencies are inferred from the claim text.