Friction damper of the wagons of a freight wagon

摘要

The utility model relates to the rolling stock of railway transport, namely, to the design of the trolley of freight cars. The frictional vibration damper of the freight car truck includes two wedges symmetrically located in the pockets of the nadressornoj beam and consisting of two mirror parts, each of which has an inclined, upper, supporting, vertical surface and side walls. The vertical surfaces are pressed against parallel contact strips of the side frame of the trolley, have a length b, protrude downward relative to the supporting surface by springs by a value of c. A wear-resistant insert is installed between the inclined surfaces of the parts of the wedge and the pocket of the nadressor beam, and a recess h is made at the intersection of the vertical surface and the upper surface of the mirror parts of the wedge. Mirror parts are located at a distance from each other. Inclined surfaces have a bend of length a, dividing them into external and internal surfaces. The inner and outer surfaces form an angle α to the abutment surface on the springs. The inner surfaces face each other at an angle β. The outer surfaces face each other at an angle γ. The outer side walls in contact with the pocket of the sprung beam have windows. The distance between the mirror parts of the wedge is from 10 to 25 mm. The reliability of the friction damper increases. 1 s.p. f-ly, 6 ill.