TRAILER-TRAIN COUPLING GEAR Russian patent published in 2007 - IPC B62D53/00 B60D1/145 

FIELD: transport engineering.

SUBSTANCE: invention relates to coupling gears of trailer-trains for use in cases when large vehicles are to be coupled for operation off road and on heavy terrain. Proposed coupling gear of trailer-train consisting of prime mover and trailer contains semi-frames for fastening coupling gear members, front one installed in bushing rigidly connected with semi-frame of prime mover and rear one installed in cylindrical cup and rigidly connected with semi-frame of trailer, and tie-rods interconnected by connecting link. Said connecting link is made in form of cross with displacement relatively perpendicular axles whose vertical diametrically arranged pins are coupled with rear tie-rod, and diametrically arranged horizontal ones, with front tie-rod. Said bushing is furnished with pilot-controlled check valve for fixing extreme points of horizontal displacement of front tie-rod. Hydraulic shock absorbers are hinge-secured on semi-frames of prime mover and trailer, being coupled with pilot-controlled check valve and located higher than upper point of hinge turning of tie-rods. Moving part of hydraulic shock absorber exceeds value of longitudinal displacement of front tie-rod.

EFFECT: improved reliability, increased service life and maneuverability when negotiating heavy obstacles, increased angle of turning of coupling gear.

3 dwg