The invention provides a hydraulic system for folding, unfolding and unlocking an undercarriage of an aerocar, belongs to the technical field of undercarriage folding and unfolding control, and solves the problems that an existing hydraulic system is complex in structure, high in manufacturing cost and the like. The hydraulic control system comprises a front undercarriage unlocking hydraulic control loop, a rear undercarriage unlocking hydraulic control loop, a rear undercarriage folding and unfolding hydraulic control loop and a front undercarriage folding and unfolding hydraulic control loop which are connected with a two-way metering pump. The nose landing gear unlocking hydraulic control loop, the rear landing gear unlocking hydraulic control loop, the rear landing gear folding and unfolding hydraulic control loop and the nose landing gear folding and unfolding hydraulic control loop are each internally provided with an electromagnetic reversing valve. The folding and unfolding of the undercarriage of the hovercar and the opening and closing of the lock are controlled by matching the positive and negative rotation of the two-way metering pump with the on-off of the electromagnetic reversing valve, the hydraulic system is simple in structure and easy to integrate, a high-price and expensive electro-hydraulic servo valve is abandoned, the weight is light, and the anti-pollution capability is strong.
本发明提供了一种飞行汽车起落架收放和开锁的液压系统,属于起落架收放控制技术领域,解决了现有液压系统结构复杂、造价昂贵等问题。其包括前起落架开锁液控回路、后起落架开锁液控回路、后起落架收放液控回路和前起落架收放液控回路,前起落架开锁液控回路、后起落架开锁液控回路、后起落架收放液控回路和前起落架收放液控回路连接有双向定量泵,前起落架开锁液控回路、后起落架开锁液控回路、后起落架收放液控回路和前起落架收放液控回路中均设置有电磁换向阀。通过双向定量泵的正反转配合电磁换向阀的通断来控制飞行汽车起落架收放和锁的开合,该液压系统结构简单易集成化,放弃了高价昂贵的电液伺服阀,重量轻,抗污染能力强。
Hydraulic system for folding, unfolding and unlocking undercarriage of hovercar
一种飞行汽车起落架收放和开锁的液压系统
2023-12-08
Patent
Electronic Resource
Chinese