LINEAR ELECTROMECHANICAL DRIVE WITH POSSIBILITY OF LUBRICATION WITHOUT DISMANTLING Russian patent published in 2020 - IPC F16H25/24 

FIELD: machine building.

SUBSTANCE: invention relates to actuators. Linear electromechanical drive comprises an electric motor, a roller-screw gear, which comprises a cylinder with an internal thread, installed with possibility of rotation in the housing, a screw, a rod, containing an external part and an internal hollow tubular part, wherein the inner hollow tubular part is separated from the external part by a cavity, and threaded rollers, which are installed in said cylinder in interaction with internal thread of cylinder and threaded section of screw with possibility of transfer of force from said cylinder to rod. Possibility of rotation of the cylinder of the roller-screw gear is provided by its installation in the housing on at least one bearing support, and the rotor of the electric motor includes permanent magnets installed on the outer surface of the cylinder of the roller-screw gear. Drive also has a hole for lubricant access and a lubrication channel extending from the lubricant access hole to the inner space of the said threaded cylinder of the roller-screw gear. Part of the lubrication channel extends in the inner hollow tubular part of the rod, wherein the inner hollow tubular part of the rod is arranged in series in the longitudinal direction relative to the screw.

EFFECT: simplified drive lubrication process.

9 cl, 1 dwg