TOWING COUPLER OF TRAILING SCRAPER Russian patent published in 2009 - IPC E02F3/64 

FIELD: transportation.

SUBSTANCE: inventions are related to traction machines that work with trailing equipment. Towing coupler of scraper comprises tractor with frame, trailing bucket, traction bar, weight transfer hydraulic cylinders. Trailing bucket is connected by arch-yoke via ball joint to front axle of scraper. Traction bar is connected to beam by means of longitudinal joint. Beam is connected to tractor frame by means of support moving in longitudinal plane. Weight transfer hydraulic cylinders are fixed on sides of arch-yoke and are connected via flexible joint to lever, which is rigidly fixed to front axle of scraper. Beam is equipped with transverse joint, which is installed in vertical guides of tractor frame.

EFFECT: simplified design and maximum increase of tractor coupling weight due to maximum drawing of trailing equipment by suspended front axle near tractor.

5 dwg