FRICTION DRAFT GEAR OF AUTOMATIC COUPLER OF FREIGHT CARS AND METHOD FOR ITS OPERATION Russian patent published in 2023 - IPC B61G11/08 

FIELD: railway transport.

SUBSTANCE: inventions group relates to railway transport. The friction draft gear of the automatic coupler of freight cars contains a body, a pressure cone, friction wedges, friction plates, and a reciprocating device located between the base plate and the bottom of the body in the form of a package of elastic polymer elements. Friction wedges and plates, as well as a package of elastic polymer elements, are compressed with a coupling bolt and nut through the pressure cone and the bottom of the housing. On the side walls of the housing, mesh sealing stiffeners are made with dimensions of at least 40×40 mm and a height of at least 2 mm, while on the narrowed corner part of the housing parallel to the bottom, stiffening ribs are made in two places, the side walls of the housing in cross section have dimensions in the ratio not less than less than L/13 mm, where L is the width of the side of the friction draft gear; the bottom of the case is made with a thickness of at least 1/10 L. A set of elastic polymer elements is made of four elements of small diameter and one element of a larger diameter, made of TPE-E polymer. A method for operation of the friction draft gear is also claimed.

EFFECT: invention provides an increase in energy intensity and reliability, as well as a simplification of the design of the friction draft gear.

3 cl, 4 dwg