Method and apparatus for pre-spinning rotor forgings

Details Method and apparatus for pre-spinning rotor forgings Method and apparatus for pre-spinning rotor forgings

2009-02-25

2011-11-08

Noori, Max (Department: 2855)

Measuring and testing

Rotor unbalance

Dynamic

Reexamination Certificate

active

08051709

ABSTRACT:
A method and system for relieving forging induced residual stresses in a rotor forging balances a pre-spin machine with the forging mounted thereon at a first rotational speed and then pre-spins the forging with it mounted on the machine at a substantially greater second rotational speed. A one per rev sensor is used for determining a weight placement angle and a vibration sensor is used for determining an amount of weight to add to a spinning assembly including the forging during the balancing. High-density non-metallic balance weights adhesively attached on an inside surface of the forging or spinning assembly may be used. The rotational inertia of the spinning assembly may be checked during a spin up period by determining a rate of rotational acceleration vs. torque applied to the spinning assembly and used to stop the pre-spinning if it is to great.

REFERENCES:
patent: 3146623 (1964-09-01), Ehrsam, Jr.
patent: 3916495 (1975-11-01), Klassen et al.
patent: 4234200 (1980-11-01), Orem et al.
patent: 4411715 (1983-10-01), Brisken et al.
patent: 4449966 (1984-05-01), Piramoon
patent: 4482963 (1984-11-01), Lenahan et al.
patent: 4566810 (1986-01-01), Yoshioka et al.
patent: 4716761 (1988-01-01), Ito
patent: 4827197 (1989-05-01), Giebeler
patent: 5022276 (1991-06-01), Thelen
patent: 5221250 (1993-06-01), Cheng
patent: 5277063 (1994-01-01), Thomas
patent: 5509881 (1996-04-01), Sharples
patent: 5627762 (1997-05-01), Cameron
patent: 5800331 (1998-09-01), Song
patent: 5895849 (1999-04-01), Matteucci
patent: 6205405 (2001-03-01), Pouvreau
patent: 6368265 (2002-04-01), Barkus et al.
patent: 6457941 (2002-10-01), Larzelere et al.
patent: 6589151 (2003-07-01), Akatsu et al.
patent: 6595052 (2003-07-01), Wharton
patent: 6679820 (2004-01-01), Barkus et al.
patent: 6789023 (2004-09-01), Tsai et al.
patent: 7360993 (2008-04-01), Fraenkel
patent: 7419361 (2008-09-01), Byam et al.
patent: 7464577 (2008-12-01), Habedank et al.
patent: 2003/0062304 (2003-04-01), Sueyoshi
patent: 2004/0034483 (2004-02-01), Sonnichsen et al.
patent: 2006/0251507 (2006-11-01), Braswell
patent: 2010/0009833 (2010-01-01), Ryu et al.
patent: 2010/0080705 (2010-04-01), Pronovost et al.
patent: 1611976 (2006-01-01), None
patent: 1026815 (1953-05-01), None
patent: 2173602 (1986-10-01), None
patent: 9280250 (1997-10-01), None
“Schenck Spin Test Systems”, Schenck Balancing and Diagnostic Systems, www.schenck-usa.com, Feb. 25, 2009, 1 page.
“Schenck Types of Balancing Machines”, Schenck Balancing and Diagnostic Systems, www.schenck-usa.com, Feb. 25, 2009, 1 page.
PCT Search Report issued in connection with corresponding U.S. Appl. No. 10/022,674, filed Jan. 30, 2010.
Machine Translation for Abstract of FR Patent No. 1026815.

Affiliated with

Also associated with

Rating

Method and apparatus for pre-spinning rotor forgings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for pre-spinning rotor forgings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for pre-spinning rotor forgings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4275805