The invention relates to an undercarriage maintenance vehicle (1, 100) for the maintenance of the underbody of trains, wherein the undercarriage maintenance vehicle (1, 100) is configured to be movable on a rail track (2) having two rails (10) which extend parallel to each other and are spaced apart by a gauge (g). The undercarriage maintenance vehicle (1, 100) comprises: a platform (3) having a width (w), a maintenance unit (4) coupled to the platform (3) and configured to perform service operations at the underbody of trains, and located along a length (I) of the platform (3) at least two pairs of support arms (5) extending substantially in the width direction, which is when used in a track system (6) perpendicular to the rail track (2). Each support arm (5) comprises: a support wheel (7) that is configured to freely rotate around a rotational axis, an active wheel (8) that is configured to rotate around a rotational axis, wherein the support arms (5) are arranged to couple the support wheels (7) and the active wheels (8) to the platform (3), wherein at least two active wheels (8) are motorized driven wheels. The undercarriage maintenance vehicle is characterized in that the active wheels (8) are configured to contact a foot (9) of a rail (10) of the rail track (2), the support wheels (7) are configured to contact an underside of a rail head (11) of the rail (10), and in that a retraction mechanism (12) is provided for each support arm (5) configured to retract the support arms (5) towards the platform (3).


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    Title :

    AN UNDERCARRIAGE MAINTENANCE VEHICLE AND A METHOD FOR MOVING ALONG A RAIL TRACK USING THE UNDERCARRIAGE MAINTENANCE VEHICLE


    Additional title:

    FAHRWERKWARTUNGSFAHRZEUG UND VERFAHREN ZUM BEWEGEN ENTLANG EINER SCHIENE UNTER VERWENDUNG DES FAHRWERKWARTUNGSFAHRZEUGS
    VÉHICULE DE MAINTENANCE DE TRAIN DE ROULEMENT ET PROCÉDÉ DE DÉPLACEMENT LE LONG D'UNE VOIE FERRÉE À L'AIDE DU VÉHICULE DE MAINTENANCE DE TRAIN DE ROULEMENT


    Contributors:
    ZHANG YU (author) / PENG CHAOYONG (author) / GUO JIANGUANG (author) / ZHANG BIN (author) / ZHANG ZHAOYUAN (author)

    Publication date :

    2025-01-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / B60B VEHICLE WHEELS , Räder für Fahrzeuge / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES



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