The invention belongs to the field of airplane structural strength ground tests, and particularly relates to a secondary loading structure for airplane structural strength ground test. The secondaryloading structure comprises: a secondary loading lever, wherein each end of the secondary loading lever is connected with one primary loading lever, and the surface of the secondary loading lever is provided with a communicating through hole, limiting bulges are arranged on the inner wall of the connecting through hole, and a first strip-shaped through hole is formed between the limiting bulges and extends along the axial direction of the secondary loading lever; and a knuckle bearing arranged in the connecting through hole, wherein the inner ring of the knuckle bearing is used for being connected with a top-stage loading lever, and the first strip-shaped through hole is used for allowing the top-stage loading lever to pass through.
本申请属于飞机结构强度地面试验领域,具体涉及一种飞机结构强度地面试验次级加载结构,包括:次级加载杠杆,其每端用以对应与一个初级加载杠杆连接,其表面具有连接通孔;连接通孔的内壁具有限位凸出;限位凸出间形成第一条形通孔,第一条形通孔沿次级加载杠杆的轴向伸展;关节轴承,在连接通孔中设置,其内圈用以与顶级加载杠杆连接;第一条形通孔用以供顶级加载杠杆穿过。
Secondary loading structure for airplane structural strength ground test
一种飞机结构强度地面试验次级加载结构
2020-06-19
Patent
Electronic Resource
Chinese
IPC: | 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 |