BIMETALLIC BRAKE SHOE Russian patent published in 2007 - IPC B61H1/00 F16D65/08 

FIELD: railway transport; brakes of rolling stock.

SUBSTANCE: proposed bimetallic brake shoe contains cast iron bar made by molding and steel plate from which steel cylindrical inserts pass into cast iron bar which are arranged in two parallel rows. Inserts are made of material whose abrasiveness is higher than material of bar. Steel plate is placed longitudinally under boss and it covers entire surface of rear side of cast iron bar. It contains middle profiled section enclosing cross boss. Extreme cylindrical inserts in rows are provided with ring grooves on side surface. Diameter d of each cylindrical insert is found from formula d=(0.16-0.32) x B where d is diameter of cylindrical insert; B is width of working surface of shoe, and T-areas of working surface of shoe without inserts is calculated by formula T=(5.0-9.2) x t where T is area of working surface; t is sum of working surfaces of inserts.

EFFECT: improved operating characteristics of shoe, increased balanced service life, reliability, efficiency, increased service life of wheels of rolling stock owing to reduction of their wear caused by brake bimetallic shoes.

10 cl, 4 dwg