Mechanical actuator

A mechanical actuator comprising:

• a motor;
• a screw assembly comprising a threaded screw shaft, a nut assembly, and an extension tube, the threaded screw shaft rotatable by the motor and the nut assembly arranged to move in either direction along a longitudinal axis of the threaded screw shaft when the threaded screw shaft is in rotational motion, thereby moving the extension tube between an extended position and a retracted position;
• and
• a lubrication system comprising a lubrication impeller, the system arranged to provide lubrication to the screw assembly;
• wherein the lubrication system includes a pressurized oil bath system using an accumulator, external tubing, and external valves.

A mechanical actuator comprising:

• a motor;
• a screw assembly comprising a housing, a threaded screw shaft disposed within the housing, a nut assembly, and an extension tube, the threaded screw shaft rotatable by the motor and the nut assembly arranged to move in either direction along a longitudinal axis of the threaded screw shaft when the threaded screw shaft is in rotational motion, thereby moving the extension tube between an extended position and a retracted position;
• a bearing assembly arranged to provide support to at least a portion of the threaded screw shaft;
• and
• a lubrication system comprising a lubrication impeller, the system arranged to provide lubrication to the screw assembly.