FIELD: machine building.
SUBSTANCE: invention relates to towing coupler devices of tractors intended for application of truck trailers. Road train comprises guide of floating type with power traction load sensors, lever-sliding mechanism with double-acting hydraulic cylinder and trailer hitch. Power traction load sensors are made in form of electric force-measuring pins with electronic control unit, connecting guide with lever-sliding mechanism and electro hydraulic distributor connected with double action hydraulic cylinder.
EFFECT: higher traction-adhesion properties of tractor unit with full trailer, improved acceleration and braking properties of automotive transport unit.
3 cl, 2 dwg
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