The invention belongs to the field of undercarriage design, and particularly relates to an undercarriage supporting rod locking mechanism. A common supporting rod lock mechanism is usually a four-connecting-rod lock mechanism, the number of parts is large, the occupied space envelope is large, the weight is heavy, and improvement of the flight performance is not facilitated. The rocker arm is provided with two block bodies which are vertically staggered by a certain angle on the outer side of one end of a rotating shaft, one block body is provided with a spring hole, and the other block body is provided with an actuator plane; a lock ring bushing is mounted at the other end of the rocker arm through a lock ring shaft; a cam is arranged at the end part of the lower supporting rod; the upper supporting rod is provided with a concave cavity, the unlocking actuator and one end of the locking spring are fixed in the concave cavity, the unlocking actuator acts on the plane of the actuator through a piston rod of the unlocking actuator to control rotation of the rocker arm, and the other end of the locking spring is connected with the spring hole. The unlocking mechanism is simple in structure, light in weight, small in movement envelope occupied space and simple in mechanism design, the unlocking actuator is separated from the locking mechanism, and the requirement for electrification of the actuator can be well met.
本发明属于起落架设计领域,具体涉及一种起落架撑杆锁定机构。常见的撑杆锁机构通常是四连杆锁机构,零件较多,占用空间包络较大,重量较重,不利于飞行性能的提升。本发明摇臂在转轴一端外侧具有上下错开一定角度的两个块体,一个块体具有弹簧孔,另一个块体具有作动器平面;摇臂在另一端通过锁环轴安装有锁环衬套;下撑杆在端部具有凸轮;上撑杆具有凹腔,其中固定所述开锁作动器和锁定弹簧的一端,通过该开锁作动器的活塞杆)作用在所述作动器平面上控制摇臂的转动,锁定弹簧的另一端与所述弹簧孔连接。重量更轻,运动包络占用空间更少,机构设计更简单,并且开锁作动器与锁定机构分离,可以较好的适应作动器电气化的需求。
Supporting rod locking mechanism of undercarriage
一种起落架撑杆锁定机构
2023-03-28
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
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