FRICTION DRAFT GEAR Russian patent published in 2018 - IPC B61G9/00 

FIELD: transportation.

SUBSTANCE: friction draft gear comprises a housing, in which a friction spacer block is located. The spacer unit consists of a pressure cone, friction wedges, a base plate resting on supporting and return device that rests on the housing bottom, movable friction plates and stationary friction plates with an L-shaped profile, on the longer shoulder of which metal elements made of various powder mixtures are welded. The frictional stationary plate has guide supports symmetrical with respect to its median plane of the longitudinal section. The hardness of the guide supports is higher than the hardness of the cermet elements. Between the guide supports and the cermet elements, there is a clearance h of not more than 15 mm.

EFFECT: increased reliability of the friction absorbing apparatus.

4 dwg