公开(公告)号：US20150078909A1

公开(公告)日：2015-03-19

申请号：US14027733

申请日：2013-09-16

Applicant: Bell Helicopter Textron Inc.

Inventor： Mark A. Wiinikka ,  Nathan P. Green ,  Robert A. Self, Jr. ,  John R. McCullough

IPC: F01D5/14

CPC classification number: F01D5/14 ,  B64C27/48

Abstract: The rotor hub can include a rotor blade; a rotor yoke; a grip member having an inboard portion, an upper extension, and a lower extension; and a rotor blade having a root end coupled to the upper extension and the lower extension of the grip member with a first bolt, a second bolt, and a third bolt. The first bolt is located on a spanwise axis of the rotor blade. The second bolt is offset from the spanwise axis by a first chordwise distance and is offset from the first bolt by a first spanwise distance. The third bolt is offset from the spanwise axis by a second chordwise distance and is offset from the first bolt by a second spanwise distance.

Abstract translation: 转子轮毂可包括转子叶片; 转子轭; 具有内侧部分，上部延伸部和下部延伸部的握持部件; 以及转子叶片，其具有用第一螺栓，第二螺栓和第三螺栓联接到所述握持构件的上延伸部和下延伸部的根端。 第一螺栓位于转子叶片的翼展轴上。 第二螺栓与翼展方向轴线偏移第一弦向距离，并且与第一螺栓偏移第一横向距离。 第三螺栓与翼展方向轴线偏移第二弦向距离，并且从第一螺栓偏移第二横向距离。