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公开(公告)号：US20130280076A1
公开(公告)日：2013-10-24
申请号：US13804732
申请日：2013-03-14
IPC分类号： F01D5/30
摘要： An airfoil blade (2) of a bearingless rotor of a helicopter. Said airfoil blade (2) has a pitch axis from a tip end to a root end and said root end is provided with junction means for a separable junction arrangement of said airfoil blade (2) with a flexbeam head (13), and a control cuff (4, 22). Said junction arrangement is mechanical with removable fasteners respectively removable connecting said root end of said airfoil blade (2) to said control cuff (4, 22) and said flexbeam head (13). Said root end comprises at least two openings (7, 8) being asymmetric with regard to said pitch axis.
摘要翻译： 直升机无轴承转子的翼型叶片（2）。 所述翼型叶片（2）具有从尖端到根端的俯仰轴线，并且所述根端部设置有用于所述翼型叶片（2）与柔性梁头（13）的可分离接合装置的接合装置，以及控制 袖带（4,22）。 所述接合装置是机械的，具有分别可拆卸地将所述翼型叶片（2）的根端连接到所述控制袖带（4,22）和所述挠性束头（13）的可拆卸紧固件。 所述根端包括关于所述俯仰轴线不对称的至少两个开口（7,8）。
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公开(公告)号：US20130315734A1
公开(公告)日：2013-11-28
申请号：US13785696
申请日：2013-03-05
IPC分类号： B64C27/33
摘要： An aerodynamic blade attachment (1) for a bearingless rotor, particularly a main rotor, of a helicopter, comprising: an airfoil blade (2) having a tip end and a root end and having a pitch axis from said tip end to said root end; a flexbeam (3); a control cuff (4, 22) enclosing and extending along said flexbeam (3) and a separable junction arrangement between said flexbeam (3), said control cuff (4) and said root end of said airfoil blade (2). Said junction arrangement is mechanical between said flexbeam (3), said control cuff (4) and said root end of said airfoil blade (2). Removable fasteners (5, 6) connect said root end of said airfoil blade (2) and said control cuff (4) with said flexbeam (3). Said junction arrangement comprises fairing means (10, 27, 28, 31, 32 and 39) encompass the removable fasteners (5, 6) and said flexbeam (3).
摘要翻译： 一种用于直升机的无轴承转子，特别是主转子的空气动力学叶片附件（1），包括：具有尖端和根端并具有从所述尖端到所述根端的俯仰轴的翼型叶片（2） ; 柔性梁（3）; 沿着所述挠性束（3）包围并延伸的控制箍（4,22）和所述柔性梁（3），所述控制箍（4）和所述翼型叶片（2）的所述根端之间的可分离的连接装置。 所述接合装置在所述挠性梁（3），所述控制箍（4）和所述翼型叶片（2）的所述根端之间是机械的。 可拆卸紧固件（5,6）将所述翼型叶片（2）的所述根端和所述控制箍（4）与所述挠性梁（3）连接。 所述接合装置包括包围可拆卸紧固件（5,6）和所述柔性梁（3）的整流装置（10,27,28,31,32和39）。
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公开(公告)号：US20140112785A1
公开(公告)日：2014-04-24
申请号：US14053841
申请日：2013-10-15
IPC分类号： B64C27/33
摘要： The invention relates to a separable blade attachment (1) for a bearingless main rotor of a helicopter with an airfoil blade (2), a flexbeam (3) and a control cuff (4) enclosing at least a predominant portion of said flexbeam (3). A separable junction arrangement between said flexbeam head (13), said control cuff (4, 22) and said root end of said airfoil blade (2) is mechanical with removable fasteners. A stiffened link (17) is provided between respective trailing edges (9) of the control cuff (4) and said airfoil blade (2).
摘要翻译： 本发明涉及一种用于直升机的无轴承主转子的可分离叶片附件（1），其具有翼型叶片（2），柔性梁（3）和控制箍（4），所述柔性梁（3）和控制箍（4）至少包围所述柔性梁 ）。 所述挠性头（13），所述控制箍（4,22）和所述翼型叶片（2）的所述根端之间的可分离的连接装置是机械的，具有可移除的紧固件。 加强连杆（17）设置在控制套筒（4）和所述翼型叶片（2）的相应后缘（9）之间。
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公开(公告)号：US20130280075A1
公开(公告)日：2013-10-24
申请号：US13803009
申请日：2013-03-14
IPC分类号： B64C27/48
摘要： A blade attachment (1, 20) for a bearingless main rotor of a helicopter with an airfoil blade (2), a flexbeam (3, 21) including a flexbeam body (16, 17) and a flexbeam head (13) at an end of said flexbeam body (16, 17). A control cuff (4, 22) encloses and extends along at least a predominant portion of said flexbeam (3, 21). A separable junction arrangement between said flexbeam head (13), said control cuff (4, 22) and said root end of said airfoil blade (2) is mechanical with removable fasteners. Said removable fasteners comprise a main bolt (7) and at least one supporting bolt (8).
摘要翻译： 一种用于具有翼型叶片（2）的直升机的无轴承主转子的叶片附件（1,20），包括柔性梁主体（16,17）和柔性梁头（13）的柔性梁（3,21） 的所述挠性体（16,17）。 控制袖带（4,22）围绕所述柔性束（3,21）的至少主要部分包围并延伸。 所述挠性头（13），所述控制箍（4,22）和所述翼型叶片（2）的所述根端之间的可分离的连接装置是机械的，具有可移除的紧固件。 所述可移除的紧固件包括主螺栓（7）和至少一个支撑螺栓（8）。
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