Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1984-03-30
1985-10-01
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29525, 29526R, 403254, B23P 2500
Patent
active
045437041
ABSTRACT:
A method of mounting a machine element on a shaft by means of a device which fits between the interior cylindrical bore of the machine element and the outer surface of the shaft. The device has a sleeve formed of three separable segments, the inner surface of the sleeve being tapered and the outer surface being substantially cylindrical about the axis of the bore of the machine element. In accordance with the invention the surface of the shaft is machined so as to be tapered with a taper corresponding to the taper on the interior surface of the sleeve whereby the sleeve and the tapered portion of the shaft mate. At one side of the tapered portion the shaft is of greater diameter than the largest interior diameter of the sleeve and on the other side the shaft is of a diameter smaller than the smallest interior diameter of the sleeve. Adjacent the tapered portion the smaller diameter part of the shaft is threaded. A threaded nut is provided to cooperate with the threads on the shaft and is interlocked with the segmented sleeve with opposing dry surfaces so that threaded engagement of the nut drives the segmented sleeve along the tapered surface of the shaft. The engagement of the drive surfaces with the segments of the sleeve affords limited pivotal movement of the segments to accommodate expansion and contraction of the sleeve upon the displacement along the tapered surface. The shaft is precisely machined to conform to the taper of the interior surface of the sleeve and is threaded to mate snugly with the threaded nut.
REFERENCES:
patent: 2151831 (1939-03-01), Buccicone
patent: 2515303 (1950-07-01), Isnard
patent: 2924876 (1960-02-01), Lewis
patent: 3099083 (1963-07-01), Delong
patent: 3227250 (1956-01-01), Cram
patent: 3501183 (1970-03-01), Stratienko
patent: 3614140 (1971-10-01), Nestor
Fenner America Inc.
Moon Charlie T.
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