发明名称 |
PITCH ADJUSTMENT ASSEMBLY FOR BEARINGLESS MAIN ROTORS |
摘要 |
A pitch adjustment assembly (100) for a bearingless rotor assembly (20) which includes a torque tube member (36) enveloping a flexbeam connector (22). The pitch adjustment assembly (100) includes a centering bearing (70) for centering an inboard end (38) of the torque tube member (36) relative to the flexbeam connector (22), wherein the centering bearing (70) defines a torque tube pivot point (110) about which the torque tube member (36) is rotationally displaced relative to the flexbeam connector (22), a pitch control rod (48) mechanically connecting to a pitch control arm (46) for imparting pitch control inputs to the torque tube member (36); wherein the pitch control rod and arm (46, 48) define an input pivot point (116) and, a displacement mechanism (102 or 140), in combination with the centering bearing (70), for effecting translational displacement of the geometric center (120) of the torque tube member (36) relative to the torque tube and input pivot points (110, 116). Adjustment shims (102) or a jacking arrangement (140) is used to effect the translational displacement of the torque tube member (36). |
申请公布号 |
WO9615029(A2) |
申请公布日期 |
1996.05.23 |
申请号 |
WO1995US13156 |
申请日期 |
1995.10.18 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
SCHMALING, DAVID, N.;BYRNES, FRANCIS, E. |
分类号 |
B64C27/59;B64C27/35;B64C27/51;B64C27/605 |
主分类号 |
B64C27/59 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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