ROTARY DEVICE Russian patent published in 2020 - IPC B66C3/00 

FIELD: machine building.

SUBSTANCE: invention relates to rotary device (10, 110) to provide rotary motion. Rotary device comprises motor (11, 111) with stator (13, 113) and rotor (12, 112) located inside stator (13, 113) with possibility of rotation relative to said stator (13, 113) around longitudinal axis (A). Rotary device (10, 110) comprises a rotor attachment part (15, 115) connected to the rotor, and a stator mounting portion (16, 116) connected to the stator, wherein one of the rotor mounting part (15) and fastening part (16, 116) of the stator is configured to be attached to the boom arm, and the other is attachable to the attached implement. Bearing (18) is made with possibility to connect fastening part (15, 115) of rotor to fastening part (16, 116) of stator by means of stator (13, 113) and transfer of loads, acting between fastening part (15, 115) of rotor and fastening part (16, 116) of stator by means of stator (13, 113), but not through rotor (12, 112).

EFFECT: compactness of device and ability to withstand high forces without damage to engine accuracy, durability and wear.

10 cl, 10 dwg