公开(公告)号：US3918836A

公开(公告)日：1975-11-11

申请号：US41530273

申请日：1973-11-13

Applicant: TEXTRON INC

Inventor： JOHNSON GLENN E ,  LUFKIN MARTIN H

IPC: B64C27/32 ,  B64C27/48 ,  F16J15/52 ,  B63H3/00 ,  B64C11/06 ,  B64C11/12 ,  F16C33/78

CPC classification number: F16J15/52 ,  B64C27/32 ,  B64C27/48

Abstract: A lubricant seal for a grip and spindle assembly attaching rotor blades to a helicopter mast. An elongated grip has a clevis for attachment to a helicopter blade. A spindle extends into a chamber in the inboard end of the grip. The grip is mounted to rotate on the spindle for blade pitch change. An annulus between the exterior of the spindle and inside of the grip houses bearing means rotatably positioning the grip on the spindle. Lubricant in the annulus is sealed in by seals positioned at the ends of the annulus. The seals are elastomeric cylinders each having one end rigidly attached to the spindle and the other end rigidly attached to the grip.

Abstract translation: 用于将转子叶片连接到直升机桅杆上的把手和主轴组件的润滑剂密封件。 细长的握柄具有用于连接到直升机叶片的U形夹。 主轴延伸到手柄内侧的一个腔室中。 手柄安装成在主轴上旋转以进行叶片间距变化。 主轴外部和手柄内部之间的一个环形空间将轴承装置可旋转地定位在主轴上。 环形润滑剂通过位于环形端部的密封件密封。 密封件是弹性体圆柱体，每个弹性体圆柱体的一端刚性地连接到心轴，另一端刚性地附接到手柄。