TRAILER-TRAIN COUPLING GEAR Russian patent published in 2007 - IPC B62D53/06 B60D7/00 

FIELD: transport engineering.

SUBSTANCE: invention relates to trucks with semitrailers. Proposed trailer-train coupling gear contains pivot of semitrailer with splines in its upper part, toothed hub fitted on splines of upper part of pivot and fixed by nut with cotter pin, control piston, housing with internal toothed rim, mounting tenon made integral with pivot which is fitted between grips of tractor coupler, cover with union, and pack of friction and steel disks. Friction disks are in meshing with toothed rim of housing, and steel disks, with toothed hub. Device contains also relief valve and pair air pipelines. Brake system is connected with air pipeline with relief valve and with control piston through union for compressing said pack of friction and steel disk. Device is furnished additionally with system to regulated air pressure consisting of steering wheel turning angle sensor, electronic control unit and discharge electromagnetic valve communicating with atmosphere, and through union, with overpiston space of control cylinder.

EFFECT: improved maneuverability and decreased switch of semitrailer at cornering of trailer-train and braking, prevention of sidewise slipping of semitrailer wheels.

3 dwg