Sprocket with asymmetrical teeth for mining conveyors

Details Sprocket with asymmetrical teeth for mining conveyors Sprocket with asymmetrical teeth for mining conveyors

1993-05-14

1994-06-07

Bui, Thuy M.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

474157, F16H 5517

Patent

active

053184831

ABSTRACT:
A unidirectional sprocket includes a hub and a series of radially arrayed sprocket teeth. Each of the sprocket teeth include a root at the point of connection with the hub, a radially extending split body and twin outwardly projecting points at the distal or outermost end. Forward and rearward flanks extend from the root radially outwardly, while forward and rearward faces extend radially inwardly from the pitch circle. Each of the sprocket teeth is asymmetrical with a forward offset. Thus, the point is shifted in the drive direction toward the forward face and flank, and shifted away from the rearward face and flank. Each of the teeth also includes a forward landing area formed above the forward flank and a rearward landing area formed above the rearward flank. Together, the forward and rearward faces and landing areas of adjacent teeth define a split chain link seat for engaging the chain being driven. The rearward landing area is longer than the forward landing area due to the forward offset, and the forward landing area is raised with respect to the rearward landing area.

REFERENCES:
patent: 2286666 (1942-06-01), Briggs
patent: 2529168 (1950-11-01), Marshall et al.
patent: 3265191 (1966-08-01), Low
patent: 3495468 (1970-02-01), Griffel
patent: 4095478 (1978-06-01), Rynik
patent: 5263575 (1993-11-01), Ledet

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