TRIANGLE BEAM OF A TRUCK OF A FREIGHT RAILWAY Russian patent published in 2021 - IPC B61F5/52 B61F3/10 

FIELD: railway.

SUBSTANCE: inventions group relates to the field of railway rolling stock, in particular to variants of bolster bogies of freight car bogies. The beam is made in the form of a box-section casting. On one vertical wall there are guide protrusions for the pivot beam jaws, and on the other - brackets with holes for connecting bolts. The bolts hold the pivot and bolster together. On the upper belt there are supporting surfaces for installing the pivot beam. In the end parts there are support surfaces with clamps for installing spring suspension springs, jaws and shock absorber brackets with stiffening ribs. The upper and lower chords are connected by vertical stiffening ribs and contain two technological windows with edging on the inner surfaces of the chords. The upper chord windows are located closer to the middle of the beam than the lower chord windows. Each vertical stiffener is poured into the flanges of the windows of the upper and lower chords. The vertical rib under the zone of the supporting surfaces of the pivot girder can pass into vertical stiffeners cast into the flanges.

EFFECT: operational reliability of the beam is increased.

6 cl, 5 dwg