Method for assembling a rotary apparatus with gap-controlling fe

Details Method for assembling a rotary apparatus with gap-controlling fe Method for assembling a rotary apparatus with gap-controlling fe

1994-05-11

1999-01-05

Hughes, S. Thomas

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

29434, 29525, 2989809, B23P 1100

Patent

active

058550658

ABSTRACT:
A rotary apparatus, such as a pneumatic motor, is disclosed. The rotary apparatus comprises an end plate having a race cavity, a main rotor with a stub shaft extending from one end, and a bearing, which includes an outer race seated in the race cavity and an inner race having a central bore. The stub shaft is fitted into the central bore with a frictional fit. In a preferred embodiment, the threaded shank of a screw is threaded into a threaded socket in the stub shaft so as to draw the stub shaft into the central bore with a washer bearing against the screw head, against the stub shaft, and against the inner race, whereby a controlled gap is provided between an outer surface of the main rotor and an inner surface of the end plate. In an alternative embodiment, a threaded nut is threaded onto a threaded stud extending from the stub shaft so as to draw the stub shaft into the central bore with a washer bearing against the threaded nut, against the stub shaft, and against the inner race, whereby the controlled gap in provided. Also, a related method for assembling the rotary apparatus is disclosed, in a preferred mode for assembling the preferred embodiment and in an alternative mode for assembling the alternative embodiment.

REFERENCES:
patent: 4472869 (1984-09-01), Yasui et al.
patent: 4629354 (1986-12-01), Freese
patent: 4652167 (1987-03-01), Garman
patent: 4882829 (1989-11-01), Dawe
patent: 4896412 (1990-01-01), Meisner et al.
patent: 5125156 (1992-06-01), Witte
patent: 5386630 (1995-02-01), Fox

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