WORM-AND-SCREW LINEAR ELECTRIC MECHANISM Russian patent published in 2024 - IPC H02K7/06 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, namely to power electromechanical devices intended for movement of working elements. Worm-and-screw linear electric mechanism includes an electric motor, on the output shaft of which a high-speed gear wheel is installed, which is in mesh with a low-speed gear wheel fixed on a worm. Worm is engaged with the worm wheel kinematically connected to the lead screw. Feature of the device is the presence of the lead screw locking device in the extreme position, device is a set of balls installed in the bearing assembly cover and arranged evenly along the circumference around the lead screw, resting on surface of annular groove made in lead screw, installed in cups through springs, which pressing force is set by adjusting screws. Balls can move radially, overcoming spring compression force.

EFFECT: providing a mechanism for protection against spontaneous movement of a lead screw in difficult operating conditions, such as vibration action and shocks.

1 cl, 1 dwg