GB1216252A - Improvements in or relating to motor-driven railway bogies - Google Patents

Abstract

1,216,252. Bogies. ENGLISH STEEL CORP. Ltd. 13 March, 1969 [14 March, 1968], No. 12514/68. Heading B7L. A motor railway bodie comprises two axles 1A and 1B driven by individual electric motors 2A, 2B through reduction gear-boxes 4A, 4B, the motors 2A, 2B being mounted within casings and lying between the side frames 3 of the bogie and between and supported by the axles 1A, 1B and the casings being provided with extensions extending towards each other and in overlapping interengagement so that reaction of one motor upon acceleration of the bogie will be balanced by the reaction of the other motor. As shown, the extensions comprise two yokes 18A, 18B secured by bolts 19 in brackets 20 extending from the casings of the respective motors 2A, 2B and yoke 18A has two upper arms 21A and one lower arm 22A and yoke 18B has one upper arm 21B and two lower arms 22B, the single upper arm 21B of yoke 18B being disposed between the two upper arms 21A of yoke 18A and the single lower arm 22A of yoke 18A being disposed between the two lower arms 22B of yoke 18B. The interengagement of these arms includes energy-absorbing pre-loaded rubber bushes 17 and a transverse member 5 extending between the side frames 3 midway between and parallel to the axles 1A, 1B has pairs of aligned holes 14 in its top and bottom walls for bolts 15 which also extend through common seating plates 16 of the rubber bushes 17. The transverse member 5 is mounted on rubber pads 11 on the side frames 3 and springs 7 mounted in the ends 6 of the transverse member 5 support the ends 8 of a bolster 9 in openings 10 in the side frames 3. In an alternative arrangement the extensions from the motor casings comprise two yokes each having one upper arm and one lower arm with at least one compression spring provided between the upper arm of each yoke and the lower arm of the other yoke.