TRAILED SCRAPER Russian patent published in 2021 - IPC E02F3/64 

FIELD: excavating transport engineering.

SUBSTANCE: invention relates to trailed scraper. Trailed scraper comprises a ball-bearing of a bucket draw frame, a trailing beam with a tow hook, installed from below the trailing beam and having a hydraulic cylinder, towing loop equipped with stops installed on transverse beam of bucket and interacting with towing hook. Scraper bucket side walls have lengthwise grooves accommodating pins of bucket draw frame attachment. On side walls of the ladle hydraulic cylinders are installed to move fingers of traction frame in bucket slots. Trailed beam is rigidly connected with traction frame ball-bearing.

EFFECT: technical result consists in simplification of design and rational redistribution of vertical loads on tractor bridges.

1 cl, 5 dwg