Train propulsion device for railway track renewal

B - Operations – Transporting – 61 – C

Patent

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Details

B61C 11/00 (2006.01) B61J 3/12 (2006.01)

Patent

CA 2046868

A propulsion device for a vehicle on rails, particularly a railway modernizing flatcar, of the kind in which movement is obtained by applying the power required for propulsion directly between the vehicle's frame and the rails, thereby bypassing the wheels. The device comprises hinged means (11-14, 31-34) for connecting it to the frame of a railway vehicle, means (1-2) for moving the propulsion device between a non-operational raised position during transit and an operational lowered position, two movable crosspieces (15, 35), means (13, 14, 33, 34) for supporting the movable crosspieces and guiding them along a path which is longitudinal with respect to the frame, hydraulic drive cylinders (16, 36) mounted between each of the two movable crosspieces (15, 35) and the frame, jaws (19, 39) mounted at both ends of each said crosspiece and able to engage the corresponding rails, and actuators (2, 42) arranged to control the engagement of said jaws (19, 39) with the rails, in conditions which make it possible to produce forward or reverse propulsive power.

Un dispositif de propulsion pour un véhicule sur rails, et spécialement pour une rame ferroviaire destinée au renouvellement de voies ferrées, du type dans lequel le mouvement est obtenu en appliquant l'effort nécessaire pour la propulsion directement entre le chassis du véhicule et les rails, sans intervention des roues, comprenant des moyens articulés (11-14, 31-34) pour sa connexion au chassis d'un véhicule ferroviaire, des moyens (1-2) pour déplacer le dispositif de propulsion entre une position neutralisée soulevée pour la marche de transfèrement et une position opérative abaissée, deux traverses mobiles (15,35), des moyens (13,14,33,34) pour supporter les traverses mobiles et les guider le long d'une trajectoire de déplacement longitudinale par rapport au chassis du véhicule, des cylindres hydrauliques de traction (16,36) connectés entre chacune des deux traverses mobiles (15,35) et le chassis du véhicule, des mâchoires (19,39) montées aux deux extrémités de chaque traverse mobile, capables d'engager les rails correspondants, et des moyens d'actionnement (22,42) disposés pour activer et désactiver l'engagement des mâchoires (19,39) par rapport aux rails, en des conditions capables de produire un effort de propulsion en sens progressif ou rétrograde.

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