PLANETARY MILL

The invention relates to grinding equipment, in particular to planetary mills and can be used for producing fine powders in powder metallurgy, the food, perfumery, paint and varnish, building and mining industries. The inventive mill comprises a body (1) containing a carrier (4) which is embodied in the form of a faceplate, arranged on a vertical shaft (2) and connected to a drive with the aid of a V-belt transmission. Said mill also comprises grinding drums (7) provided with demountable covers (8), disk-shaped holders (9) of the grinding drums provided with clamping means which are arranged on the periphery of the carrier (4), the bearing units of the holders consisting of bearings (15) and arranged on a shaft (16) inside a casing (14) and pinion pulleys linked to a central fixed multigroove pulley (6) by means of V-belts (18). The novelty of said invention lies in that the shafts (16) of the bearing units are connected to the carrier (4) in a fixed and cantilever manner and the pinion pulleys are embodied on the casings (14) in which the bearings (15) are arranged. In addition, the clamping means of the grinding drums are embodied in the form of cylinders (10) provided with a thread (13) on the internal and external surfaces of the necks (12) thereof. Said cylinders are screwed on the thread embodied on the side surfaces of the holders (9) of the drums (7) in such a way that the bottoms of the cylinders thrust against the covers (8) thereof. L'invention concerne le matériel de meunerie et notamment des moulins planétaires; elle peut aussi s'utiliser en métallurgie des poudres et en industries alimentaire, de parfumerie, de métaux non ferreux, de vernis et peintures, de construction ou minière pour obtenir des poudres fines. Le moulin comprend un corps (1) dans lequel on a monté sur un arbre vertical (2) un porte-satellites (4) se présentant comme une plaquette et relié par une transmission à courroie en V avec un entraînement, des tambours de meunerie (7) munis de couvercles amovibles (8), des supports en forme de disques (9) pour tambours de meunerie avec des moyens de serrage correspondants, disposés à la périphérie du porte-satellites (4), des unités de roulements des supports, constituées de roulements (15) montés sur un arbre (16) à l'intérieur de la cage (14) et de roues à gorges / satellites reliées par des courroies en V (18) à une roue centrale fixe à gorges multiples (6). La nouveauté du moulin consiste à utiliser des arbres (16) des unités de