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AGMA 05FTM20:2005 Edition

AGMA 05FTM20:2005 Edition

$14.30

Dual Drive Conveyor Speed Reducer Failure Analysis

Published By Publication Date Number of Pages
AGMA 2005 11
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Author: Mike Konruff, Rexnord Geared Products

With increasing requirements, many conveyor systems utilize dual drive arrangements to increase output.

Dual drives can provide an economical solution by utilizing smaller, more efficient, systemdesigns. However,

multiple drive conveyors must proportion the load between drives and load sharing without some type of

control is difficult to achieve. This paper presents a case study on a failure analysis of a coal mine dual drive

conveyor system that experienced gear reducer failures between 2 to 18months. Physical and metallurgical

inspection of failed gearing did not indicatematerial or workmanship defects, but indicated overload. In order

to determine the cause of the failures, strain gage load testing was performed. The testing of the conveyor

drives revealed load sharing problems which that will be reviewed.

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