Method of repairing a worn wobbler housing for a constant-speed

Metal working – Method of mechanical manufacture – Repairing

Patent

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Details

2940206, 2940208, 2940201, 2940204, 74800, B23P 600

Patent

active

048522368

ABSTRACT:
The method of repairing a variable wobbler body for a constant-speed drive, rotatable upon a first axis wherein the normally flat control face has become worn and irregular in shape, and the axial bore and tapered clearance opening upon a second axis is out of round, comprising the steps of cutting the worn surface areas of the wobbler body, drilling a bore of increased diameter through the axial bore and clearance opening, making a wear plate insert including a body with a replacement flat control surface, a cylindrical shank having a bore terminating in an outwardly diverging clearance opening, press-fitting the wear plate into the cut out machined areas, lapping the wear control face to a flatness of 0.000050 inches, approximately with a finish of 8 RMS. The invention further includes a wobbler body having a pair of aligned journals rotatable upon a first axis, a bottom flat seat in the plane parallel to the first axis, and a cylindrical bore upon a second axis at right angles to the first axis. A preformed wear plate insert has a body, a flat annular control wear surface, and a cylindrical shank having a bore terminating in an annular outwardly diverging clearance opening, the wear plate being nested within a recessed portion of the wobbler body and secured thereto.

REFERENCES:
patent: 595968 (1897-12-01), Parsons
patent: 3306134 (1967-02-01), Winiarski
patent: 4050140 (1977-09-01), Newell
patent: 4366726 (1983-01-01), Nilsson
patent: 4433596 (1984-02-01), Scalzo
patent: 4563915 (1986-01-01), Tibbals, Jr.
patent: 4574449 (1986-03-01), Wussow
patent: 4715249 (1987-12-01), Tibbals, Jr.
patent: 4742729 (1988-05-01), Cordara

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