The invention provides an undercarriage folding and unfolding mechanism which comprises a supporting rod (1) and a coordination pull rod (4), the supporting rod (1) comprises an upper supporting rod (101), a lower supporting rod (102), a supporting rod folding and unfolding rotary actuator (103) and a cabin door folding and unfolding rotary actuator (104), the upper supporting rod (101) and the lower supporting rod (102) are connected through a supporting rod middle rotary shaft, and the supporting rod folding and unfolding rotary actuator (103) is arranged at the supporting rod middle rotaryshaft; the cabin door folding and unfolding rotary actuator (104) is arranged at the upper end of the upper supporting rod (101), an output shaft of the cabin door folding and unfolding rotary actuator (104) is coaxial with an installation insertion shaft of the upper supporting rod (101), the upper end of the supporting rod (1) is connected with an airframe structure through the insertion shaft,the lower end of the supporting rod (1) is connected with an undercarriage supporting column (3), one end of the coordination pull rod (4) is connected with a cabin door (2), and one end is connectedwith a rocker arm of the cabin door folding and unfolding rotary actuator (104). The undercarriage folding and unfolding functions are integrated on the supporting rod, the installation connector of the undercarriage system on a fuselage is simple, maintainability is good, and reliability is high.
本发明公开一种起落架收放机构,包括撑杆(1)和协调拉杆(4),其中撑杆(1)包括上撑杆(101)、下撑杆(102)、支柱收放旋转作动器(103)和舱门收放旋转作动器(104),上撑杆(101)和下撑杆(102)通过撑杆中间转轴连接,支柱收放旋转作动器(103)布置在撑杆中间转轴处,舱门收放旋转作动器(104)布置在上撑杆(101)上端,舱门收放旋转作动器(104)的输出轴与上撑杆(101)的安装插轴同轴,撑杆(1)上端通过插轴与机体结构相连,撑杆(1)下端通过关节轴承与起落架支柱(3)相连,协调拉杆(4)一端连接舱门(2),一端连接舱门收放旋转作动器(104)的摇臂。本发明通过将起落架收放功能集成在撑杆上,起落架系统在机身上的安装接口简洁,维护性好且可靠性高。
Undercarriage folding and unfolding mechanism
一种起落架收放机构
2021-03-16
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
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