Snubbing device for the railroad car

Abstract

This invention relates to the field of mechanical engineering, notably to snubbing devices with friction shock absorbers used in railroad car for freight cars. The major tasks of proposed snubbing device for railroad car are the procurement of stable pressing of frictional wedge to inclined lateral surfaces of bogie bolster and to vertical surfaces of lateral frame of railroad car, and the procurement of friction force between vertical planes of friction wedge and lateral frame independently on car loading. Proposed technical solution lets to increase security and improve the running gear.

1 . Snubbing device for railroad car that contains friction wedge shock absorber, bogie bolster placed over spring group, bogie bolster has the shape of isosceles trapezoid with big base over spring group in the section of place of installation of friction wedge shock absorber's wedges. At the same time the wedges of friction wedge shock absorber are placed with possibility of constant lateral frame of railroad car pressing by spring element to inclined lateral surfaces of bogie bolster and to vertical surfaces of lateral frame of railroad car, at the same time bogie bolster is made with bearing places for extreme springs of middle raw of spring group. This device differs from another one due to spring element, which represents the coil (helical) springs  6 , posed into internal cavity of every wedge of friction wedge shock absorber and pressed in by the bar additionally introduced and attached to the top plane of bogie bolster.