The invention belongs to the technical field of engine bearing pins, and particularly relates to a main bearing pin connecting device for an aero-engine, which comprises a piston cylinder, pin seat holes are symmetrically formed in the side wall of the piston cylinder, piston pin pipes are inserted into the inner sides of the pin seat holes, and a connecting rod assembly sleeves the outer side of the middle of each piston pin pipe. The connecting rod assembly comprises a connecting rod small-end cylinder, a first connecting plate, a second connecting plate, a connecting rod bolt and a connecting rod body, a connecting column is fixed to the top of the connecting rod bolt, a plurality of positioning latches are fixed to the outer wall of the connecting column, and a limiting assembly is fixed to the outer wall of the connecting rod small-end cylinder; the limiting assembly comprises a fixing cylinder, a supporting spring, a rectangular plate, a fixing plate and a limiting insertion plate. One end of the limiting inserting plate is inserted between the adjacent positioning clamping teeth under pushing of the supporting spring, so that the positioning clamping teeth are shielded and limited through the limiting inserting plate, the bolt rotation condition is avoided, and the using stability of the piston pin pipe is improved.
本发明属于发动机承力销技术领域,尤其为一种航空发动机用主承力销连接装置,包括活塞筒,所述活塞筒的侧壁上对称设有销座孔,所述销座孔的内侧插接有活塞销管,所述活塞销管的中部外侧套接有连杆组件,所述连杆组件包括连杆小头筒、第一连接板、第二连接板、连杆螺栓和连杆主体,所述连杆螺栓的顶部固定有连接柱,所述连接柱的外壁固定有定位卡齿,所述定位卡齿设有多个,所述连杆小头筒的外壁固定有限位组件,所述限位组件包括固定筒、支撑弹簧、矩形板、固定板和限位插板。本发明限位插板在支撑弹簧的推动下一端插接在相邻的定位卡齿之间,从而通过限位插板对定位卡齿进行遮挡限位,从而避免螺栓回转的情况,提高活塞销管使用的稳定性。
Main bearing pin connecting device for aero-engine
一种航空发动机用主承力销连接装置
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
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