Alignment verification device for a rotating shaft

Details Alignment verification device for a rotating shaft Alignment verification device for a rotating shaft

1996-02-26

1997-06-17

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Liquid level or volume measuring apparatus

33533, 73 101, G01B 5252

Patent

active

056399537

ABSTRACT:
An alignment verification device for a rotating shaft that utilizes a calibration adapter assembly that has a longitudinal center axis. Mounted on the calibration adapter assembly in a concentric manner is a dial indicator. The stem of the dial indicator is to be placed against a precisely manufactured alignment shaft which has been temporarily substituted for a rotating shaft whose axis of rotation is to coincide with the longitudinal center axis of the calibration adapter assembly. Rotational relative movement between the stem and the shaft will produce readings on the dial indicator with any deviations of the axis of rotation from the longitudinal center axis being discovered by the dial indicator. A zeroing mechanism is to be utilized in conjunction with the calibration adapter assembly prior to connection with the rotating shaft. The zeroing mechanism takes the form of a gauge plug which is to be mounted in a close tolerance manner within a through hole formed within the calibration adapter assembly. The gauge plug has a protruding rod whose longitudinal center axis coincides with the longitudinal axis of the calibration adapter assembly. The stem of the dial indicator is to contact the protruding rod and upon rotational relative movement between the stem and the protruding rod a zero value can be ascertained on the dial indicator.

REFERENCES:
patent: 4251922 (1981-02-01), Pelotto
patent: 4283857 (1981-08-01), Graham et al.
patent: 5539992 (1996-07-01), Woodhouse

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