Electromechanical actuator

摘要

An electromechanical actuator (“EMA”) may comprise a ball screw having at least one tab extending from an inner surface thereof and/or an actuator drive unit (“ADU”) housing that interfaces with the at least one tab. The bail screw may include three tabs extending from the inner surface thereof. An outer surface of the ball screw may be threaded to mate with a threaded portion of an inner surface of the ADU housing, and/or the ADU housing may interface with the at least one tab, and the ball screw may be rotated to translate a ball nut situated concentrically over ball screw axially. The ADU housing may include a gear train assembly having a carrier plate, wherein the carrier plate includes at least one receptacle.

主权项

1. An electromechanical actuator comprising:
a ball screw comprising a cylinder defined by an inner surface, an outer surface, and a peripheral edge, the ball screw having at least one tab extending radially inward from the inner surface proximate the peripheral edge; and an actuator drive unit housing that interfaces with the at least one tab wherein the inner surface of the ball screw includes bearing tracks to mate with bearing tracks on an outer surface of the actuator drive unit housing, and wherein the ball screw is rotated to axially translate a ball nut situated concentrically over the ball screw.