The invention relates to the technical field of space shuttles and discloses a novel straight lifting retractable undercarriage. The undercarriage comprises an undercarriage body, wherein a bottom plate is fixedly welded to the bottom of the undercarriage body, and a wheel outlet is formed in the bottom plate in a penetrating mode. The novel straight lifting retractable undercarriage is advantagedin that a traditional contraction folding mode is changed into a straight lifting mode, the structure of the undercarriage folding and unfolding device is simplified, a motor rotates to drive a screwrod to rotate so as to realize lifting operation of airplane wheels, a hydraulic rod is used for pushing a limiting clamping block, the position of an outer barrel after an airplane wheel is put downis locked, limiting clamping blocks are clamped in fixed supporting rings welded to upper surfaces of supporting blocks, so the airplane wheels are supported through fixing of the fixed supporting rings by means of the middle locking effect of the limiting clamping blocks, overall supporting of the undercarriage is achieved, linkage between the structures is high, and control over the system is simplified.
本发明涉及航天飞机技术领域,且公开了一种新型直升降收放式起落架,包括机体,所述机体的底部固定焊接有底板,所述底板上贯穿开设有出轮口。该新型直升降收放式起落架,通过改变传统的收缩折叠方式为直升降式,简化了起落架收放装置的结构,并且通过电机的转动带动螺杆的旋转来实现对机轮的升降操作,利用液压杆来推动限位卡块,实现对放下机轮后的外筒进行位置锁定,并且限位卡块卡接于焊接在支撑块上表面的固定支撑环内部,从而借用限位卡块的中间锁定作用来利用固定支撑环的固定对机轮进行支撑,从而实现起落架的整体支撑,且结构间的联动性强,简化了系统的控制。
Novel straight lifting retractable undercarriage
一种新型直升降收放式起落架
2020-06-19
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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