The invention provides an anti-falling foldable heavy aircraft jack, and relates to the technical field of aviation equipment. The anti-falling foldable heavy aircraft jack comprises a plurality of supporting rods (1), an actuating cylinder (2), adjustable flat foot supporting palms (4) and pressed self-contraction trundles (5), wherein a T-shaped threaded piston (12) is installed in the actuating cylinder (2), a mechanical self-locking screw disc (3) is arranged at the top of the actuating cylinder (2), a leveling display pendulum bob (8) is installed on a shell, the bottom of the actuating cylinder is connected with a hydraulic pump station, the adjustable flat foot supporting palms (4) are connected with the supporting rods (1) through ball head leveling lead screws (13), and auxiliary supporting rods (6) are connected between the supporting rods (1) and the actuating cylinder (2) and between every two adjacent adjustable flat foot supporting palms (4). According to the anti-falling foldable heavy aircraft jack, safe jacking during maintenance of a large-scale heavy-load aircraft can be met, falling of the aircraft during hydraulic failure is avoided, the jack can be used for jack leveling on the uneven ground, and folding transportation along with the aircraft during aircraft transition is facilitated.
本发明提供了一种防下坠可折叠的重型飞机千斤顶,涉及航空器材技术领域,该防下坠可折叠的重型飞机千斤顶多个支撑杆(1)、作动筒(2)、可调平脚支撑掌(4)和受压自收缩脚轮(5),作动筒(2)内安装有T型螺纹活塞(12),作动筒(2)顶部设有机械自锁螺盘(3),外壳上安装有调平显示摆锤(8),底部与液压泵站连接,可调平脚支撑掌(4)通过球头调平丝杆(13)与支撑杆(1)连接,支撑杆(1)与作动筒(2)间以及两相邻可调平脚支撑掌(4)间均连接有辅助支撑杆(6)。本发明能够满足大型重载飞机维护时的安全顶升,避免液压失效时飞机下坠,可用于不平整地面的千斤顶调平,方便飞机转场时随机折叠运输。
Anti-falling foldable heavy aircraft jack
一种防下坠可折叠的重型飞机千斤顶
2021-07-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
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