FRICTION-POLYMER AUTOMATIC CENTER COUPLER DRAFT GEAR Russian patent published in 2013 - IPC B61G11/00 B61G11/12 

FIELD: transport.

SUBSTANCE: invention relates to railway transport, particularly, to automatic center coupler draft gears. Center coupler draft gear comprises tetrahedral case with exposed neck to accommodate backup assembly, moving friction plates and pusher to rest on set of elastic elements. Coupler gear case inner case has vertical grooves that make guides for massive jig to displace at shock compression. Case front part has tapers at working surfaces, moving friction plates have grooves to increase the space between plates so that backup assembly volume is increased. Backup assembly is composed of cylinder filled with deformable composition, rod and cover and arranged in tetrahedral case neck inside massive jig to transmit shock force from automatic coupling while tetrahedral case has tapers at its working surfaces.

EFFECT: stable operating performances, higher reliability, longer life.

1 dwg