Shaft guide alignment measurement

Details Shaft guide alignment measurement Shaft guide alignment measurement

G - Physics

01

B

33/121

G01B 3/30 (2006.01) B66B 7/12 (2006.01) E21D 7/02 (2006.01)

Patent

CA 1245851

ABSTRACT: A conveyance guide alignment measuring device adapted to track along conveyance guides in a shaft, such as a lift shaft, comprises a substantially rigid frame, roller assemblies at either end of the frame and a sub-frame movably suspended from the frame. A pair of opposed roller assemblies are mounted in the sub-frame. The roller assemblies include a fixed assembly which engages a reference guide in the shaft and an outwardly biased assembly which engages an opposed conveyance guide. The sub-frame, being freely suspended, follows any misalignment in the guides and motion sensors are mounted to detect and measure relative motion of the frame, the sub-frame and the roller assemblies mounted on the sub-frame whereby predetermined alignment parameters of the conveyance guides may be determined.

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