公开(公告)号：EP0861775A1

公开(公告)日：1998-09-02

申请号：EP97118360.3

申请日：1993-06-18

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： CYCON, James P. ,  KOHLHEPP, Frederick, W., ,  MILLEA, Vincent, F.,

IPC: B64C27/10 ,  B64C27/20

CPC classification number: B64C27/10 ,  B64C27/14 ,  B64C27/20 ,  B64C27/33 ,  B64C27/605 ,  B64C39/024 ,  B64C2201/027 ,  B64C2201/044 ,  B64C2201/108 ,  B64C2201/127 ,  B64C2201/146 ,  B64C2201/162 ,  F02B2075/025 ,  F16D3/06 ,  F16D3/185

Abstract: A coaxial transmission/center hub subassembly (110) for a rotor assembly (100) of an unmanned aerial vehicle (10) having ducted, coaxial counter-rotating rotors (200, 202) defining a rotational axis (12) for the unmanned aerial vehicle (10), the unmanned aerial vehicle (10) having a toroidal fuselage (20) with a plurality of inwardly extending support struts (24) and including a powerplant subsystem (50), the rotor assembly (100) including upper and lower swashplate subassemblies (80), comprising:

center hub support structure means (160, 146) intermediate said counter-rotating rotors (200, 202) for mounting said coaxial transmission/center hub (110) assembly in fixed coaxial relation to the toroidal fuselage (20) utilizing the plurality of inwardly extending support struts (24);
a multi-member transmission housing (140); and
a single stage transmission subsystem (120);
   characterized in that

said multi-member transmission housing (140) includes upper and lower standpipe housings (142, 144) secured in combination with said center hub support structure means (160, 146) in opposed relation along the rotational axis (12) of the unmanned aerial vehicle (10), said upper and lower standpipe housings (142, 144) having external surfaces (142E, 144E) that function as sliding surfaces for the upper and lower swashplate subassemblies (80), respectively; and
said single stage transmission subsystem (120) includes an upper bevel gear (128) that includes an upper rotor shaft (128R) rotatably mounted in combination with said upper standpipe housing (142), a lower bevel gear (130) that includes a lower rotor shaft (130R) rotatably mounted in combination with said lower standpipe housing (144), said upper and lower rotor shafts (128R, 130R) providing means for mounting the counter-rotating rotors (200, 202) in combination with said coaxial transmission/center hub subassembly (110), and an input gear (122) rotatably mounted in said center hub support structure means (160, 146) and being mechanically coupled in combination with said upper and lower bevel gears (128, 130) and the powerplant subsystem (50) to couple torque to the counter-rotating rotors (200, 202).

Abstract translation: 一种用于无人驾驶飞行器（10）的转子组件（100）的同轴传输/中心轮毂子组件（110），其具有限定用于无人驾驶飞行器的旋转轴线（12）的导管同轴对转转子（200,202） （10），具有环形机身（20）的无人驾驶飞行器（10）具有多个向内延伸的支撑支柱（24）并且包括动力装置子系统（50），所述转子组件（100）包括上部和下部斜盘组件 （80），包括：中间轮毂支撑结构装置（160,146），其位于所述反向旋转转子（200,202）之间，用于将所述同轴传动/中心毂（110）组件以固定的同轴关系安装到环形机身（20） 利用所述多个向内延伸的支撑支柱（24）; 多构件变速器壳体（140）; 和单级传输子系统（120）; 其特征在于，所述多构件变速器壳体（140）包括与所述中心轮毂支撑结构装置（160,146）组合的上和下立管壳体（142,144），所述上立管和下立管壳体沿着所述中心轮毂支撑结构装置（160,146）的旋转轴线 所述上和下立管壳体（142,144）分别具有用作上部和下部斜盘组件（80）的滑动表面的外表面（142E，144E） 并且所述单级传动系统（120）包括上锥齿轮（128），所述上锥齿轮（128）包括与所述上立管壳体（142）组合可旋转地安装的上转子轴（128R），包括下部锥形齿轮（130） 与所述下立管壳体（144）可旋转地安装的转子轴（130R），所述上转子轴和下转子轴（128R，130R）提供用于将所述反向旋转转子（200,202）与所述同轴传动/ 中心轮毂子组件（110）和可旋转地安装在所述中心轮毂支撑结构装置（160,146）中并与所述上锥形齿轮和下锥齿轮（128,130）机械耦合的输入齿轮（122）和动力装置子系统 （50）以将扭矩耦合到所述反向旋转转子（200,202）。

公开(公告)号：EP0861775B1

公开(公告)日：2002-11-20

申请号：EP97118360.3

申请日：1993-06-18

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： CYCON, James P. ,  KOHLHEPP, Frederick, W., ,  MILLEA, Vincent, F.,

IPC: B64C27/10 ,  B64C27/20

CPC classification number: B64C27/10 ,  B64C27/14 ,  B64C27/20 ,  B64C27/33 ,  B64C27/605 ,  B64C39/024 ,  B64C2201/027 ,  B64C2201/044 ,  B64C2201/108 ,  B64C2201/127 ,  B64C2201/146 ,  B64C2201/162 ,  F02B2075/025 ,  F16D3/06 ,  F16D3/185

公开(公告)号：EP0861778A1

公开(公告)日：1998-09-02

申请号：EP97118257.1

申请日：1993-06-18

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： CYCON, James P. ,  HUNTER, David H., ,  KRAUSS, Albert T.,

IPC: B64C27/33

CPC classification number: B64C27/10 ,  B64C27/14 ,  B64C27/20 ,  B64C27/33 ,  B64C27/605 ,  B64C39/024 ,  B64C2201/027 ,  B64C2201/044 ,  B64C2201/108 ,  B64C2201/127 ,  B64C2201/146 ,  B64C2201/162 ,  F02B2075/025 ,  F16D3/06 ,  F16D3/185

Abstract: A snubber assembly (230) for an unmanned aerial vehicle (10) including a rotor assembly (100) having ducted counter-rotating rotors (200, 202), the rotor assembly (100) including a rotor shaft (128R or 130R), a torque tube (270) having an inboard end, and a flexbeam (260) having an inboard end (262), comprising:

a bracket (238) configured to be secured in combination with the inboard end of the torque tube (270);
a spherical bearing (232) secured in combination with said bracket (238); and
a rotor hub (204), configured for securement in interlocked, engaged combination with the rotor shaft (128R or 130R), having a plurality of radially extending arms (214), each of said radially extending arms (214) including means for securing the inboard end (262) of the flexbeam (260) in combination with the rotor hub (204) and means for rotatably mounting said spherical bearing (232), bracket (238) combination internally in said rotor hub (204);
said internally rotatably mounted spherical bearing (232), bracket (238) combination being positioned inboard of said outboard end of said radially extending arm (214) and inboard of the inboard end (262) of the flexbeam (260);
   characterized in that
said securing means of each said radially extending arm (214) comprises a clevis (220); and
said rotatably mounting means for each said radially extending arm (214) comprises an inboard internal bulkhead (223), an outboard internal bulkhead (224), said inboard and outboard internal bulkheads (223, 224) in combination defining a bearing cavity (225) and an inboard cavity (226), and a bearing bolt (234);
said bearing bolt (234) being disposed in combination with said outboard internal bulkhead (224), said spherical bearing (232), and said inboard internal bulkhead (223) for rotatably mounting said spherical bearing (232), bracket (238) combination in said bearing cavity (225).