The invention discloses a vertical speed control device for an aircraft test bench, which comprises an oil tank, a hydraulic cylinder and a hydraulic pump, the interior of the hydraulic cylinder is divided into a rod cavity and a rodless cavity by a piston, and a piston rod of the hydraulic cylinder is connected with an aircraft tire; the hydraulic system further comprises a hydraulic accumulator, a first pilot electromagnetic valve, a first cartridge valve, a second pilot electromagnetic valve, a second cartridge valve and an electromagnetic directional valve, and the hydraulic accumulator is connected with the hydraulic pump and arranged on a hydraulic oil way between the hydraulic pump and the hydraulic cylinder. Control interfaces of the first pilot electromagnetic valve and the second pilot electromagnetic valve are respectively communicated with pressure oil of the hydraulic pump, the first cartridge valve is connected with the first pilot electromagnetic valve, the second cartridge valve is connected with the second pilot electromagnetic valve, and the first cartridge valve and the second cartridge valve are respectively communicated with a rodless cavity of the hydraulic cylinder through hydraulic pipelines. And the electromagnetic directional valve is provided with a main oil inlet P, a main oil return port T and two working oil ports. According to the invention, an airplane is simulated to provide accurate and adjustable vertical impact speed loading.

    本发明公开了一种用于飞机测试台架的垂直速度控制装置,包括油箱、液压缸与液压泵,液压缸内被活塞分成有杆腔和无杆腔,液压缸的活塞杆连接飞机轮胎,还包括液压储能器、第一先导电磁阀、第一插装阀、第二先导电磁阀、第二插装阀、电磁换向阀,液压储能器连接液压泵、并设于液压泵和液压缸之间的液压油路上;第一先导电磁阀与第二先导电磁阀的控制接口分别连通液压泵的压力油,第一插装阀与第一先导电磁阀相连,第二插装阀与第二先导电磁阀相连,第一插装阀与第二插装阀分别通过液压管路与液压缸的无杆腔连通,电磁换向阀设有主进油口P、主回油口T、及俩工作油口,本发明模拟飞机提供精准可调的垂直冲击速度加载。


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    Title :

    Vertical speed control device for airplane test bench


    Additional title:

    一种用于飞机测试台架的垂直速度控制装置


    Contributors:
    HE QINGHUA (author) / ZHANG CHENG (author)

    Publication date :

    2022-06-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



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