公开(公告)号：US20210371094A1

公开(公告)日：2021-12-02

申请号：US17396095

申请日：2021-08-06

Applicant: Bell Textron Inc.

Inventor： Tyler Wayne Baldwin ,  Kyle Thomas Cravener

IPC: B64C27/41 ,  F16C11/02 ,  F16C17/02 ,  F16C33/20 ,  F16D3/205

Abstract: A gimbal joint may employ a plurality of wear sleeves, each disposed between a pin or pin receptive bore of a first structure and a corresponding bore or pin of a second structure and between another pin or bore of the second structure and a corresponding bore or pin of a third structure. Each of these structures may be adapted to rotate in a single plane, with one structure adapted to also tilt about a first axis, and one other structure adapted to tilt about a second axis. Each integral flanged wear sleeve may comprise a right circular hollow cylindrical body portion, which may be interiorly sized to be retained on one of the pins and externally sized to be retained in one of the pin receptive bores, and a flange portion may radiate from one end of the cylindrical body portion.

公开(公告)号：US20210094677A1

公开(公告)日：2021-04-01

申请号：US16587967

申请日：2019-09-30

Applicant: Bell Textron Inc.

Inventor： Tyler Wayne Baldwin ,  Jared Mark Paulson ,  Colin John Thomas ,  Paul Branson Sherrill ,  Bryan Huber

IPC: B64C27/00 ,  F01D5/02 ,  B64C27/473

Abstract: A balance weight assembly for a rotor blade of a rotorcraft. The balance weight assembly includes a balance weight pocket formed by a balance weight tray and a cover. The balance weight tray has an upper surface including a lip region extending outwardly from a projected region with an outboard boss. A balance weight receiving cavity is recessed from the upper surface and contains a plurality of balance weights. The projected region is disposed within an opening in a hollow blade spar such that the outboard boss of the balance weight tray has a contact relationship with an outboard surface of the opening. The cover is coupled to the balance weight tray such that the lip region of the balance weight tray and at least a portion of the cover have a clamping relationship with the blade spar, thereby coupling the balance weight pocket to the blade spar.