A preload and retraction device (10, 10′) of a wheel assembly comprises a linear guide (11), an internal slider (12) and an external slider (13) movable along the linear guide (11), a linear elastic member (14) arranged to connect the two sliders (12) (13), a first wheel support arm (15) integral with the internal slider (12) and a second wheel support arm (19) integral with the external slider (13), with the external slider (13) carrying a weight support wheel (20) that is actuated and the internal slider (12) carrying a traction wheel (16) that comes into contact with a rolling surface with a preload force that is a function of the geometry of the system. The use of the device (10, 10′) is particularly advantageous for supporting the wheels in a self-propelled cart (100) of the type suitable for moving along a railway track for the inspection of the underbody of railway vehicles as it greatly facilitates and at least partially automates the installation of the self-propelled cart (100) on the track.


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    Title :

    PRELOAD AND RETRACTION DEVICE OF A WHEEL ASSEMBLY AND SELF-PROPELLED CART COMPRISING SAID DEVICE


    Additional title:

    VORSPANNUNGS- UND EINZUGSVORRICHTUNG EINER RADANORDNUNG UND SELBSTFAHRENDER WAGEN MIT DIESER VORRICHTUNG
    DISPOSITIF DE PRÉCHARGE ET DE RÉTRACTION D'UN ENSEMBLE ROUE ET CHARIOT AUTOMOTEUR COMPRENANT LEDIT DISPOSITIF



    Publication date :

    2024-12-04


    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



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