Bearing and gimbal lock mechanism and spiral flex lead module

Abstract

Abstract The invention relates to a two-axis gimbal supported payload of an orbital spacecraft. In normal orbit operation, the gimbal is supported along each of its rotational axes by a sleeve and thrust bearing assembly permitting pivotal motion of the gimbal in response to relatively low amplitude loads occasioned by orbital forces. Initially, the sleeve and thrust bearings are disengaged from the gimbal and a gimbal lock mechanism restrains pivotal motion of the gimbal during launch of the spacecraft. The gimbal lock mechanism further sealably contains the sleeve and thrust bearings thereby isolating them from contaminants until attaining a required orbit. A spring motor is actuated to disengage the gimbal lock mechanism and engage the sleeve and thrust bearings subsequent to launch. Electrical conductors in the form of metal strips, together with an associated insulating strip, are wrapped spirally about a rotational axis of the gimbal to provide power conduction to the gimbal payload without introduction of restraining forces which would interfere with the angular movement of the suspended gimbal.

Inventors

• 👤 Wayne B Lloyd

Bibliographic Details