The invention belongs to the technical field of aviation technical structure design, provides an aircraft main landing gear uplock detection device and method, and solves the problem of low working efficiency of simulation of motion of a main landing gear in the prior art. According to the airplane main landing gear uplock detection device provided by the invention, an outer-layer semicircular lining of a rotating sleeve assembly (02) is connected with a semicircular lining at the end part of a rotating shaft assembly (01), and an inner semicircular hoop of the rotating shaft assembly (01) and a semicircular hoop of the rotating sleeve assembly (02) are spliced into a complete circular hoop which can rotate; a position adjusting groove is formed in the bottom of the rotating shaft assembly (01), and a triangular connecting plate is connected into the position adjusting groove in a screwed mode. The front end of an L-shaped connecting rod (03) is in threaded connection with a triangular connecting plate, the rear end of the L-shaped connecting rod (03) is in threaded connection with the front end of an L-shaped extension rod (04), the rear end of the extension rod (04) is in threaded connection with the front end of a Z-shaped connector (05), the rear end of the connector (05) is in threaded connection with a positioning assembly (06), and the positioning assembly (06) is attached to an undercarriage lifting ring (07).

本发明属于航空技术结构设计技术领域，提供一种飞机主起落架上位锁检测装置和方法，解决现有对主起落架的运动进行模拟工作效率低下的问题。本发明提供的一种飞机主起落架上位锁检测装置，转套组件(02)外层半圆衬套与旋转轴组件(01)端部的半圆衬套连接，旋转轴组件(01)内半圆卡箍与转套组件(02)的半圆卡箍拼接成一个完整圆形卡箍，能够转动；旋转轴组件(01)底部开有位置调节槽，三角连接板螺接在所述位置调节槽内；L形的连接杆(03)前端与三角连接板螺接，后端与L形的延长杆(04)前端螺接，延长杆(04)后端与Z形的接头(05)前端螺接，接头(05)后端与定位组件(06)螺接，定位组件(06)与起落架吊环(07)贴合。