MANUFACTURING METHOD OF RAILROAD TRANSPORT MEANS BRAKE SHOE WITH FIRM INSERTS, AND MOULDING TOOL USED FOR METHOD REALISATION Russian patent published in 2009 - IPC B61H7/02 F16D65/04 B61H1/00 F16D69/02 B30B15/02 

FIELD: engineering industry.

SUBSTANCE: invention refers to engineering industry, and namely to manufacturing methods of friction items with firm inserts, which are meant for various transport types. Method is realised by hot moulding of shoe from polymer compound in a moulding tool under pressure at simultaneous alignment thereof with metal frame and firm inserts. Hot moulding is carried out in moulding tool with grooves located in a punch that forms the shoe working surface in firm insert location areas. Process projections are formed from polymer friction material on shoe working surface in those zones; then, shoe working surface is machined and process projections are removed, thus providing arrangement of working surfaces of firm inserts and polymer friction material in one plane. Moulding tool used for shoe manufacturing consists of a matrix and upper and lower punches. Punch forming the shoe working surface is equipped with grooves meant for each of the inserts arranged in location areas of firm insert working surfaces. Each groove is bigger than the appropriate insert.

EFFECT: providing the possibility of manufacturing railroad transport means brake shoe and locating working surfaces of firm inserts and working surface of friction material of shoe friction element in one and the same plane, providing efficient operation from the very beginning of brake shoe operation, and minimising the number of expensive friction material waste appearing during machining of shoe working surface.

2 cl, 3 dwg, 4 ex