PLANET MILL Russian patent published in 1995 - IPC

FIELD: fine and superfine grinding. SUBSTANCE: planet mill has housing 1 with cover 2, driving shaft 4 with pulley 5, disks 6 and 7 of the carrier, outer rigid friction race 9 which encloses grinding drums 12, flanges 15 and 16 which is mated with the faces of the drums. Movable clamps 17 are mounted on shanks 18 having collars 19 which serve as ones of the stops for spring 20. Cross-section 21 of shanks 18 is square and mated with flanges 22 over the stroke fitting. One of the ends 23 of shanks 18 is wedge-shaped and one chamfered and mated with central cone 24. The other end is coupled with movable clamps 17. Return spring 27 is mounted on driving shaft 4 and interact with its shoulders and central cone 24. The mill has stroke arrester 28 for central cone 24, ball pivot 29 in cage 30, rod 31 with spring 32 mounted inside bushing 33, and planks 34 which arrest upward motion of movable clamps 17. Catching facets 35 are made on inserts of sliding bushings 36. EFFECT: enhanced reliability. 3 cl, 3 dwg