公开(公告)号：US20170030441A1

公开(公告)日：2017-02-02

申请号：US14811747

申请日：2015-07-28

Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION

Inventor： BRENDAN J. D. IRWIN

IPC: F16H21/44 ,  B64G1/22

CPC classification number: F16H21/44 ,  B64G1/222 ,  E05D3/02 ,  E05D3/04 ,  E05D5/04 ,  E05F15/619 ,  E05F15/627 ,  E05Y2201/724 ,  E05Y2600/41 ,  E05Y2900/502 ,  F16G13/20 ,  F16H35/18

Abstract: A flex-drive actuator for a satellite boom hinge or other hinge applications. Using a motor-driven cog and a unique drive chain, the hinge can be reversibly driven between open and closed positions, thereby deploying or stowing the boom and attached payload. The chain includes links designed so that, when bent in one direction, the chain pre-buckles into a rigid circular arc form that matches the deployment path of the hinge. This pre-buckling essentially converts the chain into a rigid gear segment that can carry a moment to actuate the hinge. As the cog retracts the chain and the hinge closes, the circular shape of the chain de-buckles on the free side of the cog, where the chain can be stored as a straight section inside of a boom tube or folded into a magazine. The flex-drive actuator can accommodate any desired actuation angle by addition of links to the chain.

Abstract translation: 用于卫星吊杆铰链或其他铰链应用的柔性驱动致动器。 使用马达驱动的齿轮和独特的驱动链，铰链可以在打开和关闭位置之间可逆地驱动，从而部署或收起吊杆和附加的有效载荷。 链条包括设计成使得当沿一个方向弯曲时链条预弯曲成与铰链的展开路径匹配的刚性圆弧形状。 该预弯曲基本上将链条转换成刚性齿轮段，该刚性齿轮段可以承载一段时间来致动铰链。 当齿轮缩回链条并且铰链关闭时，链条的圆形形状在齿轮的自由侧处脱扣，链条可以作为直立部分存储在悬臂管内部或折叠成料仓。 柔性驱动致动器可以通过添加到链条的链接来适应任何期望的致动角度。