Torque indicating propeller shaft
AssigneeGKN Cardantec International Gesellschaft fur Antriebstechnik mbH
InventorAlbrecht Schlonski
Life of this patent
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Abstract
An adjustable length propeller shaft (1) has a visual torsional load indiing device including a marker (7) on a sealing collar (6) of one shaft part (9) and a calibrated scale (8) on the sleeve (5) of the other shaft part (10); an end journal (4) of the shaft part (9) being in telescopic torque transmitting relation with the sleeve (5) and surrounded by the sealing collar (6). Any permanent torsional deformation between the journal (4) and sleeve (5) results in a permanent relative rotational movement therebetween observable as a movement of the marker relative to the scale.
Claims7
An adjustable length propeller shaft comprising axially extending first and second shaft parts;
- said first shaft part having an axially extending end portion telescopically engaged within an axially extending sleeve on said second shaft part, said end portion and said sleeve having cooperating profiles for the transmission of torque between said shaft parts;
- a sealing collar secured to said shaft part and extending axially of said end portion, said sealing collar extending axially along and encircling said second shaft part, means on said sealing collar in contact with an outer surface of said sleeve on said second shaft part for providing sealing contact with said sleeve while accommodating variations in axial length in the telescopic engagement of said first and second shaft parts;
- and torsional load indicating means on said sealing collar and said sleeve for indicating overloads in torque transmission between said shaft parts.
Dependencies are inferred from the claim text.