Self-propelled vehicle for movement within a tubular member

Details Self-propelled vehicle for movement within a tubular member Self-propelled vehicle for movement within a tubular member

G - Physics

01

M

G01M 3/00 (2006.01) G01M 99/00 (2011.01) B61B 13/10 (2006.01) G01M 10/00 (2006.01)

Patent

CA 2612883

A self-propelled vehicle (20) for movement within a tubular member (22) includes propulsion mechanisms (28) distributed about a core element (24). Each of the propulsion mechanisms (28) includes a drive belt (28). A first pulley (34), a second pulley (36), and a mid-roller assembly (38) are encompassed by and engage the drive belt (28). The mid-roller assembly (38) is spring-loaded for providing an outwardly-directed force (40) to an underlying portion (42) of the drive belt (28) to press the drive belt (28) against an inner wall (44) of the tubular member (22). A motor arrangement (46), in communication with the propulsion mechanisms (28), actuates one of the first and second pulleys (34, 36) to rotate the drive belt (28) in contact with the inner wall (44) of the tubular member (22) thereby moving the vehicle (20) within the tubular member (22).

L'invention concerne un véhicule autopropulsé (20) conçu pour se déplacer à l'intérieur d'un élément tubulaire (22), qui comprend des mécanismes de propulsion (28) répartis autour d'un élément central (24). Chaque mécanisme de propulsion (28) comprend une courroie d'entraînement (28). Une première poulie (34), une deuxième poulie (36), et un ensemble demi-rouleau (38) sont entourés par la courroie d'entraînement (28) et en contact avec celle-ci. L'ensemble demi-rouleau (38) est sollicité par ressort pour exercer une force dirigée vers l'extérieur (40) sur une partie sous-jacente (42) de la courroie d'entraînement (28) de façon à presser cette dernière contre une paroi intérieure (44) de l'élément tubulaire (22). Un ensemble moteur (46), en communication avec les mécanismes de propulsion (28), actionne une des deux poulies (34, 36) pour faire tourner la courroie d'entraînement (28) en contact avec la paroi intérieure (44) de l'élément tubulaire (22), ce qui permet de déplacer le véhicule (20) à l'intérieur dudit élément tubulaire (22).

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