VEHICLE FOR MOVING ALONG PIPELINE OUTER SURFACE Russian patent published in 1996 - IPC

FIELD: industrial transport; self-propelled devices for transportation of different processing equipment over outer surfaces of pipelines. SUBSTANCE: vehicle vibrating propeller has two detachable rings located in tandem and furnished with quick-acting lock mechanisms. Rings have on their inner surfaces radially installed pneumatic members with undirectional movement wheeled mechanisms. Rotation of wheels of unidirectional movement mechanism in required direction is provided by engagement of ratchet wheel slots, rigidly coupled with support wheel, with movable stops controlled by magnetic field induced by wheeled mechanism coil. Detachable rings are interconnected by system of spring pneumatic vibrators operating in resonance. EFFECT: enlarged operating capabilities. 10 dwg