MILL WITH FRICTION MULTI-MOTOR DRIVE Russian patent published in 2025 - IPC B02C17/24 

FIELD: crushing or grinding of various materials.

SUBSTANCE: invention relates to devices for grinding ore and other materials and can be used, for example, in mining, cement, power, metallurgy, lime and porcelain industries, as well as in chemical industry. Mill with friction multi-motor drive comprises supports 21 for drum 1 and support-drive rollers 4 for rotation of drum 1, having rims 3 in contact with cylindrical surface of support-drive rollers 4. Each support 21 is rigidly connected to steel plate 23, in which coordinate holes 26 are made, wherein the axes of one pair of holes 26 are preferably made in the same vertical plane with the axis of the hole for the swing bearing of lever 19, along the edges of which there are support-drive rollers 4, or levers 19, already at the edges of which support-drive rollers 4 are installed. At that, steel plates 23 are connected to each other by transverse 27 and longitudinal 25 steel sheets, in which coordinate holes 22 are also made, combined by means of pins 28 with holes made in steel plates 23, wherein distance between coordinate holes 26 made in transverse steel sheets 27 is reduced by at least total amount of deformation of levers 19.

EFFECT: mill is characterized by higher accuracy of its mounting and repairability.

9 cl, 6 dwg