A fastening catch (100) for an aircraft engine, comprising a ball joint having a shaft (170), the ball joint comprising:-a ring (110) comprising a first bore and a sleeve (120) fitted in the first bore and having a second bore configured to receive said shaft and having a flared inner surface at each end thereof, the sleeve (120) being provided with at least one end of the sleeve (120); the fastening latch is arranged such that:-the spherical outer surface of the ring bears an antifriction coating (111) produced on a region extending beyond the contact region with the body of the latch, this first region being delimited by a rim (112) forming a projection around the coating, and the second region being delimited by a second region extending beyond the contact region with the body of the latch. And/or-the second hole carries an antifriction coating (121) on a region extending beyond its contact region with said shaft, this region being delimited by a rim (122) which forms a projection around this antifriction coating at the end of the flared inner surface. Advantageously, this makes it possible to increase the life of the antifriction coating by avoiding peeling or spalling phenomena.
飞行器发动机的紧固锁扣(100),包括具有轴杆(170)的球接头,球接头包括:-环(110),环包括第一孔和装配在第一孔中并具有第二孔的套筒(120),第二孔配置成接收所述轴杆且其直径逐渐增大以在其每个端部处具有扩口内表面,紧固锁扣布置成使得:-环的球形外表面承载减摩涂层(111),减摩涂层产生在延伸超出与锁扣的本体的接触区域的区域上,此第一区域由边沿(112)界定,该边沿围绕涂层形成突起,和/或-第二孔在延伸超出其与所述轴杆的接触区域的区域上承载减摩涂层(121),此区域由边沿(122)界定,该边沿围绕此减摩涂层在扩口内表面的端部形成突起。有利地,这使得可以通过避免剥离或剥落现象来增加减摩涂层的寿命。
Lock for fastening aircraft engine comprising antifriction coatings encapsulated in pairs, and aircraft comprising such lock
用于紧固飞行器发动机的包括成对包封的减摩涂层的锁扣以及包括这种锁扣的飞行器
2022-12-30
Patent
Electronic Resource
Chinese
European Patent Office | 2023
|LOCK MECHANISM AND UNMANNED AIRCRAFT COMPRISING THE SAME
European Patent Office | 2022
|NTIS | 1981
|NTRS | 1981
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