BIMETALLIC FLANGED BRAKE SHOE FOR LOCOMOTIVES AND RAILMOTOR CARS Russian patent published in 2009 - IPC B61H1/00 F16D69/00 F16D65/04 

FIELD: railway transport industry.

SUBSTANCE: invention refers to railway transport industry, namely to braking mechanisms used at rolling railway equipment. Brake shoe includes steel plate, cast-iron arc-shaped body consisting of main and profile areas with made groove. The body is equipped with friction elements performed in a form of cylindrical inserts. From the back in the middle of the brake shoe body main area there is transverse lug with hole for V-shaped retaining key. At the back the main area of shoe arc-shaped body is equipped with mounting T-shaped lips at the edges for coupling with stop block and stiffeners in a form of triangular lugs. The depth of profile area lug exceeds the height of wheel tread flange by 0.85 of brake shoe main area thickness. Steel plate covers brake shoe back side, encloses transverse cast-iron lug and has holes in side surface at the level of lug holes for U-shaped retaining key. In the steel plate there are mounting holes for inserts fixing. Five metallic inserts are installed from the side of wearing surface perpendicular to groove outer side wall of profile area.

EFFECT: provision of brake shoe operation safety and effectiveness, elimination of thermodynamic cross cracks possible formation, increase of rolling equipment wheel life and provision of better heat extraction and cooling of brake shoe main and profile area working part.

10 cl, 10 dwg