Coaxial double-rotor helicopter
Coaxial double-rotor helicopter
The invention discloses a coaxial double-rotor helicopter. The helicopter comprises a rack, and a rotor adjusting device, a transmission belt tensioning structure and an empennage structure are arranged on the rack; a first connecting rod is connected with upper ends of two transmission shafts; each transmission shaft is arranged in an inner shaft; two guide sheets are arranged at the upper end ofthe inner shaft; the first connecting rod is positioned between the two guide sheets and is movably connected with the guide sheets; a lower rotor blade is arranged at the outer end of each lower rotor hub; the inner end of each lower rotor hub is rotatably connected with a second positioning seat through a second connecting piece; and each second connecting piece is connected with the second connecting rod through each lower pitch rocker arm, the second positioning seat is positioned between the lower pitch rocker arms, each lower pitch rocker arm is connected with the lower end of a stabilizing arm through each cross rod, and the upper end of the stabilizing arm is connected with the second positioning seat. The helicopter is prevented from rotating automatically and structural complexity caused by a device for changing a rotating speed differentially is avoided, and beneficial effects of a simple structure, difficulty in damage, easiness in operation and the like are possessed.
本发明公开了一种共轴双旋翼直升机，包括包括机架，机架上设置有旋翼调节装置、传动皮带张紧结构和尾翼结构；第一连杆与两个传动轴上端连接，各传动轴设置在内轴内，内轴上端设置有两个导向片，第一连杆位于两个导向片之间并与导向片活动连接，各下旋翼桨毂的外端均设置有下旋翼桨叶，各下旋翼桨毂内端分别通过第二连接片与第二定位座转动连接，各第二连接片分别通过各下桨距摇臂与第二连杆连接，第二定位座位于各下桨距摇臂之间，各下桨距摇臂分别通过各横杆与稳定臂的下端连接，稳定臂上端与第二定位座连接；本发明防止直升机自旋的同时避免了差速改变转速的装置导致结构复杂，具有结构简单、不易损坏和易操作等有益效果。
Dokumentinformationen
Coaxial double-rotor helicopter
共轴双旋翼直升机
2020-09-15
Patent
Elektronische Ressource
Chinesisch
| IPC: | B64C AEROPLANES , Flugzeuge |
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