Machine element or mechanism – Gearing – Directly cooperating gears
Patent
1998-10-01
2000-08-08
Bucci, David A.
Machine element or mechanism
Gearing
Directly cooperating gears
74424, 74458, F16H 5522, F16H 116
Patent
active
060984805
ABSTRACT:
A drive axle assembly for a vehicle receives input torque from an engine via an input shaft. The input shaft drives a worm which in turn drives a worm gear. The worm gear includes teeth which engage and drive an axle shaft which in turn drives a vehicle wheel. The teeth of the worm gear are defined by a tooth profile which has two pressure angles, one on each side of the tooth. The worm includes a thread with a thread profile that also has two pressure angles, one on each side of the thread. One of the pressure angles on the thread of the worm is greater than its other pressure angle and one of the pressure angles on the worm gear teeth is greater than its other pressure angle.
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P. 51, Software Strategies, Mar. 1996.
Definition of Worm Gearing, Section 8-102 of Design Standards.
"Theoretical and Experimental Investigation of a New Plane Toothed Wheel and Its Enveloping Hourglass Worm" by K. Ishida, H. Ueda, S. Ohashi and Y. Fukui; Transactions of the ASME, vol. 100, Jul. 1978 Pg. 460-469.
Bucci David A.
Joyce William C
Meritor Heavy Vehicle Systems L.L.C.
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