Axle generator for a railway brake system

摘要

An axle generator for a brake system for a railway vehicle comprises a generator 8 mounted on an axle-box cover 21. A peg 7 is adapted to be driven by rotation of the axle, with rotation of the peg rotating magnets being parts of the generator to generate electricity. The peg is adapted to drivingly engage with a coupling element 16 to transmit rotation from the axle to the peg. The coupling element has an opening slot 18 adapted to receive the peg, the coupling element being configured to permit motion relative to the peg in five degrees of freedom. The peg is adapted to slide into and out from the coupling element and also in the vertical plane with respect to the opening slot. The coupling element is adapted to fit in a rectangular opening 23 of a coupling hub 15 fixed to an axle end. The arrangement accommodates misalignments of the peg an axle in use and provides a low backlash rotational drive coupling.