LIFTING DEVICE Russian patent published in 2024 - IPC B66D3/16 B66D3/20 

FIELD: lifting devices.

SUBSTANCE: lifting device (1) has a load chain wheel (6) and a drive shaft (4) drives this load chain wheel (6) through a transmission mechanism (5). The lifting device (1) is driven by an engine, in particular an electric motor (10). The engine shaft (11) and the drive shaft (4) are coupled through a brake clutch system (12). This brake clutch system (12) includes a coupling part (13) engaged with the engine shaft (11) and a brake hub (15) rotatably located on the brake thread (14) of the drive shaft (4). The coupling part (13) has drivers (20). The brake hub (15) has cams (21) protruding axially in the direction of the coupling part (13). Between the coupling part (13) and the brake hub (15) there is an impeller (22), which has wing elements (23). The impeller (22) is fixed without the possibility of rotation on the coupling section (24) of the drive shaft (4). On the transmission mechanism side of the brake hub (15), a pressure disk (28) is fixed on the drive shaft (4) without the possibility of rotation. Between the brake hub (15) and the pressure disk (28) there are two friction disks (33, 34) and a brake disk (35) inserted between these friction disks (33, 34). The brake disk (35) is supported in the housing (3) without the possibility of rotation.

EFFECT: functional improvement of the brake clutch system.

13 cl, 16 dwg