公开(公告)号：US20160368598A1

公开(公告)日：2016-12-22

申请号：US15158180

申请日：2016-05-18

Applicant: Alion Science and Technology Corporation

Inventor： Eric Peterson ,  Jeremiah Schweitzer ,  Zachary Anderson

IPC: B64C27/50

CPC classification number: B64C27/50

Abstract: The present invention relates to a blade folding apparatus that may incorporate an overhead blade lifting system that reduces binding loads on blade pins induced by blade weight and pitch, and a folding mechanism that removes the necessity of personnel with external guide-poles to rotate main rotor blades. The apparatus may include flap locks, an overhead lifting system support structure attached to the flap locks, and two blade support beams to create and support a lifting point near each blade's longitudinal and lateral center of gravity. The blade support beams may be fitted with an articulation mechanism that lifts and/or lowers the overhead lifting structure. The apparatus facilitates rapid folding of the main rotor blades, and, when used with blade clamping mechanisms, is capable of aiding in the removal and/or the re-installation of the main rotor blades without external lifting mechanisms.

Abstract translation: 本发明涉及一种叶片折叠装置，其可以包括降低由叶片重量和间距引起的叶片上的捆绑载荷的顶置叶片提升系统，以及折叠机构，其消除了具有外部引导杆的人员旋转主转子的必要性 刀片。 该装置可以包括襟翼锁，附接到翼片锁的顶部提升系统支撑结构以及两个叶片支撑梁，以在每个叶片的纵向和横向重心附近产生和支撑提升点。 叶片支撑梁可以装配有提升和/或降低架空提升结构的关节运动机构。 该装置有助于主转子叶片的快速折叠，并且当与叶片夹紧机构一起使用时，能够辅助主转子叶片的移除和/或重新安装而无需外部提升机构。

公开(公告)号：US10287009B2

公开(公告)日：2019-05-14

申请号：US15158180

申请日：2016-05-18

Applicant: Alion Science and Technology Corporation

Inventor： Eric Peterson ,  Jeremiah Schweitzer ,  Zachary Anderson

IPC: B64C27/50

Abstract: The present invention relates to a blade folding apparatus that may incorporate an overhead blade lifting system that reduces binding loads on blade pins induced by blade weight and pitch, and a folding mechanism that removes the necessity of personnel with external guide-poles to rotate main rotor blades. The apparatus may include flap locks, an overhead lifting system support structure attached to the flap locks, and two blade support beams to create and support a lifting point near each blade's longitudinal and lateral center of gravity. The blade support beams may be fitted with an articulation mechanism that lifts and/or lowers the overhead lifting structure. The apparatus facilitates rapid folding of the main rotor blades, and, when used with blade clamping mechanisms, is capable of aiding in the removal and/or the re-installation of the main rotor blades without external lifting mechanisms.