FIELD: transport.
SUBSTANCE: invention relates to railroad transport. Bogie side frame consists of top and bottom chords, two lateral walls with opening for bogie swing suspension and friction strip vertical supports, and outer horngaps as well as closing sidewalls. Note here that top chord is a box-like structure and consists of a solid strip of width varying in length and solid bent or hot-rolled channel connected therewith over the entire length. Besides, it has the ends decreased by third height, arranged in symmetry about its bore crosswise axis shaped to ellipse half, their vertices being opposed. Bogie side frame fabrication consists in connection of top and bottom chord elements by backstep procedure and overlapping of weld section on the left and the right from mirror axis. Note here that multiplayer welds are used each layer being made by backstep procedure.
EFFECT: higher reliability of freight car bogie.
13 cl, 7 dwg
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Authors
Dates
2015-10-27—Published
2014-03-05—Filed