TROLLEY with friction dampers FOR freight railway cars

摘要

The invention relates to the field of railway transport, namely the construction of railroad freight cars trucks. The trolley comprises two lateral frames (1), wheel pairs (2) and the bogie bolster (3), supported by side frames (1) by a central spring suspension (8) composed of two-row helical springs (9) and the wedge dampers (10 ), wherein each generator shock absorber (10) comprises a hollow body (11), a vertical surface (12) with a stepped shoulder (13) in its lower part, an upper surface (14) and an inclined surface (16) which is disposed to the horizontal plane at an angle α 45-55 ° and a bulge in the vertical pLANE and the radius R in the range from 700 to 1000 mm, the total width and inclined surface (16) wedge shock absorber (10) in 23-92% greater than the width b of its vertical surface (12) and side portions (17) inclined surface (16) projecting beyond the vertical surface (12) located below the top surface (14). The technical result of the claimed utility model is to improve the operating characteristics of the trolley.