The utility model relates to a locknut assembly. The utility model has the advantages that the existing thread looseness proof method is limited by structure and can not be used repeatedly; the utility model is not suitable for occasions with heavy load and large vibration, and the self-locking nut is inconvenient to operate and is tightly fastened, so that the problem of radial bending of the bolt is caused. The utility model has self locking nut assembly is composed of a main nut, the elastic element and the auxiliary nut; main nut and nut pair are respectively provided with a first internal thread hole and bolt connection, the auxiliary nut is sheathed on the main nut, and the two are connected by threads, the main nut and nut two side connected with the screw screw nut is connected with the main and auxiliary nuts and bolts to the contrary, the elastic element is arranged between the main nut and nut pair. The utility model is mainly used for the connection of important threads with strong vibration and no pretension.
【技术实现步骤摘要】
本技术涉及一种防松螺母组件。
技术介绍
对于紧固目的的螺纹,要求获得足够大的稳定预紧力,在振动、变载荷等工作条件 下不致产生松动,并要求结构尽量紧凑、装拆方便、可重复使用。现有螺纹防松的常用方法 有增加摩擦力防松方法及机械防松方法。增加摩擦力防松方法,如弹簧垫圈、双螺母、金属 锁紧垫、扣紧螺母、齿形锁紧垫圈、尼龙嵌件锁等都是靠增加摩擦力防松的,但使用效果在 重载、振动大的场合没有连接的可靠性而言;机械防松方法,如开槽螺母、开口销、止动垫 圈、楔压式、双联止动垫圈、钢丝串接、翘形垫圈、凹锥面锁紧垫圈等都靠机械防松的,虽然 有的机械防松措施起到很好的防松作用,但有的受到结构限制、有的不能重复使用、也有的 对结构有一定的削弱。综上,针对现有螺纹防松现状,存在各种弊端。另外还出现了唐氏自锁螺母,其使用正、反旋向螺纹双螺母结构,其螺母总高度增 加的较多,且螺栓为非标件,对力矩加载有一定要求,操作不便。此外,还有一种是偏心式自 锁螺母,其紧固使得螺栓产生径向弯曲。
技术实现思路
本技术的目的是提供一种自锁防松螺母组件,以解决现有螺纹防松方法受结 构限制、不能重复使用,不适合在重载 ...
【技术保护点】
1.一种自锁防松螺母组件,所述组件由主螺母(1)、弹性元件(2)及副螺母(3)组成;主螺母(1)与副螺母(3)分别设有与螺栓(4)连接的第一内螺纹孔(7),其特征在于:副螺母(3)套装在主螺母(1)上,且二者通过螺纹连接,主螺母(1)和副螺母(3)二者连接的螺纹旋向与主螺母(1)和副螺母(3)与螺栓(4)连接的螺纹旋向相反,弹性元件(2)设置在主螺母(1)和副螺母(3)之间。
【技术特征摘要】
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