Removable electric propulsion system for a rolling object - simultaneous and combined wheel gripping and lifting in the longitudinal direction

摘要

The present invention relates to a removable electric propulsion system (1) for a rolling object, the propulsion system (1) comprising a frame (2) provided with at least one wheel (3) driven by an electric machine, at least one non-driven wheel (4) and at least one coupling means of the electric propulsion system (1) to the rolling object. The hitching means comprises at least one means for combined and simultaneous gripping and lifting of at least one wheel of the rolling object, and in that the combined and simultaneous gripping and lifting means comprises a frame (23) , at least one extendible arm (24) in a longitudinal direction (x) connected to the frame (23), at least one tilting element (22) and at least one pushing device (20), the tilting element (22) and the pushing device (20) being for one connected to said extendable arm (24) and for the other connected to the chassis (2), said pushing device (20) being able to push at least one wheel of the object rolling along said longitudinal direction (x) in said at least one tilting element (22), said tilting element (22) being able to tilt around an axis of substantially transverse direction (21). The invention also relates to a coupling method and a coupling of a propulsion system to the rolling object. Figure 1 to be published