DEVICE FOR BELT-DRUM BRAKE FRICTION PAIRS COOLING Russian patent published in 2016 - IPC F16D49/08 F16D65/813 

FIELD: machine building.

SUBSTANCE: invention refers to machine-building industry and can be used in belt-drum brakes of drill winches. Device comprises brake pulley, brake belt with friction linings, cooling device made as a heat tube and drive. Heat pipe consists of the first circular chamber being an evaporation zone, side walls of which are installed in longitudinal slots of pulley rim, and their inner surface is coated by non-shrinking sintering method with two-component capillary-porous powder material contacting in its turn with annular article with possibility of its vertical movement in the chamber, and the second circular chamber being a condensation zone which bottom wall is provided with fins. First circular chamber shares common annular wall with the second chamber, and side walls of annular chambers are interconnected via steam line and condensate line of different length.

EFFECT: increased service life of friction pairs due to increased efficiency of forced and conductive cooling.

1 cl, 3 dwg