Machine element or mechanism – Elements – Gear casings
Patent
1986-03-27
1988-08-02
Smith, Gary L.
Machine element or mechanism
Elements
Gear casings
228166, 29463, F16H 5702, B21D 3900, B23K 3102
Patent
active
047607556
ABSTRACT:
A new blank is provided for use in the manufacture of a modified fast fade rear axle housing of rectangular cross-section having a shortened neck shape which is bent by hot forming preferably at temperatures of 1350.degree. F.-1650.degree. F. to maximize the torsional strength of the housing in the expanded annular section where the transition zone joins the center differential receiving portion and the beam arms of the axle. Two U sections are welded after being bent to provide parallel legs joined to a web by arcuate corner sections. The axially extending curvature of the corner sections and the web are respectively convexly defined by a first radius R.sub.1 measured from a true origin at the vertical axis of the differential receiving portion where it intersects the longitudinal axis of the axle and a second eccentric radius R.sub.2 measured from a displaced origin and concavely by blending radii R.sub.4 and R.sub.3 which are substantially less than corresponding blending radii in drive axle housings in which the convex curvature is concentric with the true origin. The blending radii and the eccentric radius values result in a shortened taper in the transitional zone which is about half that of a conventional slow fade taper wherein no eccentric radius is used. The new blank both uses and wastes less metal and is uniquely characterized in the internodal contour and transition zone slopes which are distinctly different from blanks utilized in the manufacture of conventional slow fade axle housing.
REFERENCES:
patent: 1410758 (1922-03-01), Huff
patent: 1880305 (1932-10-01), Williams
patent: 1945076 (1934-01-01), Riemenschneider
patent: 1970231 (1934-08-01), Habicht
patent: 2273336 (1942-02-01), Spatta
patent: 2480833 (1949-09-01), Buckendale
patent: 2674783 (1954-04-01), Schneider et al.
patent: 3015238 (1962-01-01), Williams
patent: 3213531 (1965-10-01), Wylie
patent: 3269214 (1966-08-01), Nagel
patent: 3535002 (1970-10-01), Stamm
patent: 3673888 (1972-07-01), Moll et al.
patent: 4068541 (1978-01-01), Sakamoto et al.
Luong Vinh
Rockwell International Corporation
Smith Gary L.
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