Shaft and bore misalignment measurement tool

Details Shaft and bore misalignment measurement tool Shaft and bore misalignment measurement tool

1978-12-22

1980-09-16

Little, Willis

Geometrical instruments

Area integrators

Electrical

33174Q, 33181R, 33185R, G01B 525

Patent

active

042221730

ABSTRACT:
A tool for determining misalignment of a coupling bore located in one end a rotatable machine shaft. The tool includes a plurality of radially expandable split rings disposed side-by-side along the outer surface of a hollow, tubular collet body, an elongated mandrel assembly coaxially carried by the collet body, and a dial displacement indicator releasably carried on the mandrel assembly. The mandrel assembly includes a taper or mandrel portion partially disposed within the collet body, a stem portion projecting outwardly from the collet body, a threaded portion disposed adjacent the mandrel portion, and an adjusting nut having a threaded portion engaged with the mandrel assembly threaded portion. The collet body is placed in the shaft coupling bore and the adjusting nut turned so that the mandrel portion is drawn through the collet body, the latter thereby expanding and forcing the rings into "locking" engagement with the wall of the shaft coupling bore.

REFERENCES:
patent: 1607862 (1926-11-01), Bath
patent: 2694261 (1954-11-01), Dulligan
patent: 3336677 (1967-08-01), Newton
patent: 3534480 (1970-10-01), Jordan et al.

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