FRICTION ABSORBING DEVICE OF AUTOMATIC COUPLER OF FREIGHT CARS AND METHOD OF ITS OPERATION Russian patent published in 2024 - IPC B61G11/08 F16F7/09 

FIELD: rail vehicles.

SUBSTANCE: invention relates to railway transport, namely to friction absorber of automatic coupler of freight cars and method of its operation. Freight cars automatic coupler friction absorbing device comprises a friction absorbing device housing with a closed end part and an open opposite part, pressure cone with a central hole and three friction wedges located relative to each other at angle of 120°, support plate. Between the support plate and the closed end part of the housing of the friction absorbing device there is a reciprocating-support device in the form of a package of elastic polymer elements of small and polymer element of a large with washers of reciprocating support assembly, tightened to each other along longitudinal axis of friction absorbing device by means of tightening bolt through pressure cone tightened by tightening bolt nut respectively. At the same time each friction wedge has recesses on the surface contacting with inner surface of the housing of the friction absorbing device, in which antifriction inserts of the friction wedge are installed, respectively.

EFFECT: friction absorbing device has improved power characteristics from the beginning of operation without a long period of running-in, simpler and more reliable assembly technology, increased strength of housing, increased range of damping of frictional self-oscillations, besides, risk of breakage of housing in places of protrusions is reduced.

2 cl, 11 dwg