公开(公告)号：US4344739A

公开(公告)日：1982-08-17

申请号：US143628

申请日：1980-04-25

申请人： Hans Derschmidt ,  Hubert Frommlet

发明人： Hans Derschmidt ,  Hubert Frommlet

IPC分类号： B64C27/35 ,  B64C27/33 ,  B64C27/38

CPC分类号： B64C27/33

摘要： The wing blades of a hingeless and bearingless multiblade rotor are connected to a substantially rigid rotor hub by spar sections elastically twistable and bendable in the flapping direction and in the lead-lag direction. The mounting positions on the periphery of the rotor hub for connection of the spar sections of the respective blades are off-set relative to the angular position of the corresponding blades to which they are connected. Further, the mounting positions for the spar sections of each rotor blade are situated on the periphery of the half side or far side of the rotor hub, facing away from the respective rotor blade. A rear spar section of each mounted rotor blade with reference to the direction of rotation, overlaps the front spar section of the immediately following rotor blade but with free clearance and spacing between the overlapping spar sections in the direction of the rotor axis so that the maximum bendable length of the elastic spar sections is afforded without interference between the blades. The effective or virtual flapping hinges and lead-lag hinges of each blade is shifted closer to the rotor axis thereby minimizing the masses necessary for propeller moment compensation, and static and dynamic balancing of the rotor blades, as well as reducing the required steering forces.

摘要翻译： 无铰链和无轴承多叶片转子的翼片通过翼片形部分连接到基本上刚性的转子轮毂上，这些翼片部分在振荡方向和前后延时方向弹性扭转和弯曲。 用于连接各个叶片的翼梁部分的转子轮毂周边上的安装位置相对于它们所连接的相应叶片的角位置偏移。 此外，每个转子叶片的翼梁部分的安装位置位于转子毂的半侧或远侧的背面，背离相应的转子叶片。 每个安装的转子叶片相对于旋转方向的后翼梁部分与紧随其后的转子叶片的前翼梁部分重叠，但是在转子轴线方向上的重叠翼梁部分之间具有自由间隙和间隔，使得最大 提供弹性翼梁部分的可弯曲长度，而不会在叶片之间产生干扰。 每个叶片的有效或虚拟的拍动铰链和前进 - 后退铰链被更接近转子轴线，从而最小化螺旋桨力矩补偿所必需的质量，以及转子叶片的静态和动态平衡以及减少所需的转向力。

公开(公告)号：US4547127A

公开(公告)日：1985-10-15

申请号：US544563

申请日：1983-10-24

申请人： Hubert Frommlet ,  Michael Hahn

发明人： Hubert Frommlet ,  Michael Hahn

IPC分类号： B64C27/32 ,  B64C27/33 ,  B64C27/48 ,  B64C27/37

CPC分类号： B64C27/33 ,  B64C27/32 ,  B64C27/48

摘要： A flexible blade neck of a helicopter rotor blade is bridged by a torsion gid sleeve for the blade angle adjustments. The radially outer end of the blade neck and sleeve are rigidly connected to the wing section of the blade. The radially inner end of the blade neck forms a blade root which is secure to the rotor head or hub. Additionally, the radially inner ends of the blade root and of the sleeve are interconnected by a ball and socket arrangement permitting a universal movement between the sleeve and the blade neck, thereby decoupling sleeve movements from the blade neck and vice versa.

摘要翻译： 直升机转子叶片的柔性叶片颈部由扭转刚性套筒桥接，用于叶片角度调整。 叶片颈部和套筒的径向外端刚性地连接到叶片的翼部。 叶片颈部的径向内端形成叶片根部，叶片根部固定到转子头部或轮毂上。 此外，叶片根部和套筒的径向内端部通过允许套筒和叶片颈部之间的通用运动的球窝装置相互连接，从而使套筒运动与叶片颈部脱离，反之亦然。

公开(公告)号：US4028000A

公开(公告)日：1977-06-07

申请号：US627702

申请日：1975-10-31

申请人： Emil Weiland ,  Alois Schwarz ,  Hubert Frommlet

发明人： Emil Weiland ,  Alois Schwarz ,  Hubert Frommlet

IPC分类号： B64C27/00 ,  B64C27/51 ,  B64C27/42

CPC分类号： B64C27/001 ,  B64C27/51

摘要： Resilient drive means for a helicopter rotor blade. The rotor blade is pivotally supported on a stub shaft which is in turn supported on the rotor hub. First means are fixed to the rotor blade and second means fixed to the stub shaft with resilient and adjustable means positioned therebetween for controlling the angular relationship between the rotor blade and the stub shaft. In this embodiment, said first means comprise a shoulder which projects from the rotor blade and the second means comprise a rectangular hollow frame which is fixed to the stub shaft. The shoulder projects into the hollow frame. Threaded means acting through resilient means holds the first and second means in selected pivotal adjustment with respect to each other but the resilient component thereof permits sufficient slight lead lag movement therebetween as to effect damping of the lead lag mode of the rotorblade. The adjustment capability permits sufficient adjustment of the blade with respect to the hub to ensure desired balance between the several blades of a given rotor.

摘要翻译： 用于直升机转子叶片的弹性驱动装置。 转子叶片枢转地支撑在短轴上，短轴又支撑在转子毂上。 第一装置固定到转子叶片上，第二装置固定到短轴上，弹性和可调节装置位于其间，用于控制转子叶片和短轴之间的角度关系。 在该实施例中，所述第一装置包括从转子叶片突出的肩部，并且第二装置包括固定到短轴的矩形中空框架。 肩膀突入中空框架。 通过弹性装置作用的螺纹装置将第一和第二装置相对于彼此保持在选定的枢转调节中，但是其弹性部件在其间允许足够的轻微的超前滞后运动，以实现转子叶片的牵引滞后模式的阻尼。 调整能力允许相对于轮毂足够调节叶片，以确保给定转子的几个叶片之间期望的平衡。

公开(公告)号：US4360337A

公开(公告)日：1982-11-23

申请号：US175022

申请日：1980-08-04

申请人： Hubert Frommlet ,  Ludwig Stangl

发明人： Hubert Frommlet ,  Ludwig Stangl

IPC分类号： B64C27/51 ,  B64C11/00 ,  B64C27/32 ,  B64C27/33 ,  B64C27/35

CPC分类号： B64C27/33 ,  B64C11/00 ,  B64C27/32 ,  B64C27/327

摘要： The wing blades of a helicopter rotor each are connected to the rotor hub a connection, e.g. a spar being .fwdarw..rarw. including a hinge which is at least fictitious to permit lead-lag movements of the blades . A rod, which is stiff in the lead-lag direction and yielding against torsion, is connected in parallel to the connection between the blade root and the rotor hub. One connection of the rod is rigid, for example the connection to the blade root. The other connection of the rod is elastically yielding substantially only in the plane of the rotor whereby a substantial damping of blade movements in the lead-lag direction is accomplished.

摘要翻译： 直升机转子的翼片每个都通过连接连接到转子毂，例如 翼梁是 - > < - 包括至少虚拟的铰链，以允许叶片的牵引滞后运动<相对于扭转产生以允许叶片角度调节>。 在牵引滞后方向上刚性并且抵抗扭转的杆与叶片根部和转子毂之间的连接平行地连接。 杆的一个连接是刚性的，例如与叶片根部的连接。 杆的另一个连接基本上仅在转子的平面中弹性地产生，从而实现叶片在超前滞后方向上的运动的实质性阻尼。

公开(公告)号：US4186975A

公开(公告)日：1980-02-05

申请号：US861560

申请日：1977-12-16

申请人： Alois Schwarz ,  Karlheinz Mautz ,  Hubert Frommlet

发明人： Alois Schwarz ,  Karlheinz Mautz ,  Hubert Frommlet

IPC分类号： B64C27/54 ,  F16J15/54 ,  F16C33/76

CPC分类号： F16J15/54 ,  B64C27/54 ,  F16C33/6659 ,  F16C19/54

摘要： A bearing seal for the outer and inner blade angle bearings of a rotor hub of a rotary wing aircraft comprises a lubricating oil chamber interconnecting the inner and outer bearings and extending coaxially therebetween. The bearings are provided with sealing rings at their faces opposite the lubricating oil chamber. A shielding member is positioned in front of the face of the outer blade angle bearing facing the lubricating oil chamber. A receptacle is arranged as part of the chamber and positioned in operative relationship with the deflector member for entrapping particles contained in the lubricating oil and separated therefrom by the effect of centrifugal forces as the oil migrates from the inner blade angle bearing toward the outer bearing.

摘要翻译： 用于旋转翼飞行器的转子轮毂的外叶片和内叶角轴承的轴承密封件包括将内外轴承互连并在它们之间同轴延伸的润滑油室。 轴承在其与润滑油室相对的表面上设有密封圈。 屏蔽部件位于面向润滑油室的外刀片角承载件的前面。 容器被布置为室的一部分并且与偏转器构件处于可操作的关系中，用于捕获容纳在润滑油中的颗粒，并且随着油从内叶片角承载件向外轴承移动时，通过离心力的作用将其分离。

公开(公告)号：US4086024A

公开(公告)日：1978-04-25

申请号：US723440

申请日：1976-09-15

申请人： Emil Weiland ,  Alois Schwarz ,  Karl-Heinz Mautz ,  Hubert Frommlet

发明人： Emil Weiland ,  Alois Schwarz ,  Karl-Heinz Mautz ,  Hubert Frommlet

IPC分类号： B64C27/35 ,  B64C27/48 ,  B64C27/51

CPC分类号： B64C27/48 ,  B64C27/51

摘要： A rotor blade is connected to a rotor hub, for example, in a helicopter, byt least one pair of damping elements and by a blade connector bolt. The damping elements comprise metal discs and layers of elastomeric material arranged in sandwich fashion. The damping elements are arranged symmetrically relative to the rotor blade, as well as to the blade connector bolt. Furthermore, the damping elements are connected in a force transmitting manner to the rotor blade on the one hand and to the rotor hub on the other hand.

摘要翻译： 转子叶片例如通过至少一对阻尼元件和叶片连接器螺栓连接到转子毂，在直升机中。 阻尼元件包括以三明治方式布置的金属盘和弹性体材料层。 阻尼元件相对于转子叶片以及叶片连接器螺栓对称布置。 此外，阻尼元件一方面以力传递方式连接到转子叶片，另一方面连接到转子毂。

公开(公告)号：US4058353A

公开(公告)日：1977-11-15

申请号：US671151

申请日：1976-03-29

申请人： Hubert Frommlet ,  Karl-Heinz Mautz ,  Klaus Brunsch

发明人： Hubert Frommlet ,  Karl-Heinz Mautz ,  Klaus Brunsch

IPC分类号： F16C21/00 ,  B64C27/605 ,  F16C19/52

CPC分类号： B64C27/605 ,  F16C19/525

摘要： One of two races of a roller bearing is equipped with a sliding ring exteng thereabout, with a melting ring formed of material having a melting point higher than the normal operating temperature of the bearing being interposed between the one race and the sliding ring. Malfunction of the bearing such as might occur by seizure of the bearing rollers will cause at least partial melting of the melting ring whereupon the one race is placed in relative sliding engagement through the melting ring with the sliding ring.

摘要翻译： 滚子轴承的两个座圈之一配备有在其周围延伸的滑环，由熔点高于轴承的正常工作温度的材料形成的熔化环介于一个座圈和滑环之间。 诸如可能通过卡住轴承辊而发生的轴承故障将导致熔化环的至少部分熔化，因此一个座圈通过具有滑动环的熔化环相对滑动地接合。