TENSION TRANSMISSION FOR TENSIONING ENERGY ACCUMULATING SPRING OF ENERGY ACCUMULATION SPRING DRIVE Russian patent published in 2020 - IPC H01H33/40 

FIELD: machine building.

SUBSTANCE: invention relates to tension transmission (1) for tensioning energy accumulating spring of energy accumulation drive. Tensioning gear (1) includes tensioning wheel connected to energy-storage spring and connected to intermediate shaft (2), intermediate wheel (4) driven by tensioning motor, free running mechanism (3) connected to intermediate wheel (4), locking mechanism for detachable fixation of tensioning wheel in tensioned state of energy-accumulating spring and cam clutch (20), which connects free running mechanism (3) for tensioning energy-accumulating spring with intermediate shaft (2) and in tensioned state of energy-accumulating spring disconnects it from intermediate shaft (2). Clutch coupling (20) includes first clutch cam (12) non-rotating coupled with intermediate shaft (2), second clutch cam (11) coupled with free running mechanism (3), and synchronous ring (15) located between clutch cams (11, 12) and connected without possibility of rotation with first clutch cam (12), this ring, when cam clutch (20) is closed, is pressed to second clutch cam (11).

EFFECT: increased reliability of power switches disconnection.

14 cl, 2 dwg