The invention belongs to the mechanical field, in particular to a locknut. Never loosen the interlocking check nut. The nut is a plane interlocking check nut. A spring hole is arranged obliquely on the lower end face of the nut to the upper end face. A rolling body and a spring are placed in the spring hole. The rolling body part protrudes from the lower end face of the nut. The upper end hole of the spring hole is provided with a locking pin hole, and a self-locking locking pin is inserted. The rolling body is connected with the locking pin through the spring. The invention has the advantages of a novel anti loosing method and simple structure. The locking torque can be measured and controlled at the same time. Several interlocking mechanisms are installed on the nut, which can be controlled as required. Never loose; reliable performance; wide application; unlimited reuse within the limit service life of nut itself; suitable for various fields or equipment requiring high strength, such as various vehicles, railway tracks, chemical equipment with strict sealing, nuclear facilities, etc., which can completely replace and surpass imported nuts in important occasions such as high-speed rail.
【技术实现步骤摘要】
永不松动互锁止逆螺母
本专利技术属于机械领域,特别涉及防松螺栓螺母。
技术介绍
现有螺母常用的防松方法有三种:摩擦防松、机械防松和永久防松。机械防松和摩擦防松称为可拆卸防松,而永久防松称为不可拆卸防松。常用的永久防松方法有:点焊、铆接、粘合等。这种方法在拆卸时大多要破坏螺纹紧固件,无法重复使用。常见摩擦防松有:利用垫片、自锁螺母及双螺母等。常见的机械防松方法:利用开口销、止动垫片及串钢丝绳等。但这些都满足不了特别重要连接场合的需要,也无法做到既能重复使用又能永不松动。如,目前我国高铁所用防松螺母尚需进口。
技术实现思路
本专利技术的目的是解决目前永久防松螺母满足不了需求的不足问题,提供一种永不松动的互锁止逆的螺母,结构简单,防松性能可靠,应用广泛,适用于各机械领域。本专利技术为实现上述目的所采用的技术方案是:永不松动互锁止逆螺母,所述螺母为平面互锁止逆螺母,在螺母下端面向上端面斜向开设有弹簧孔,弹簧孔内放置有滚动体和弹簧,滚动体部分凸出螺母下端面,弹簧孔上端孔口开设有锁销孔,插有自锁锁销,滚动体通过弹簧与锁销连接。进一步地,所述弹簧孔为斜孔,斜孔垂直于直径,斜孔的斜角a≤螺母与被紧固件的摩擦角,斜孔斜角的顶点为螺母旋向方向。进一步地,所述螺母上弹簧孔数量一般为1-12个。工作时,螺母旋至与被紧固件平面接触时,滚动体被挤压而克服弹簧弹力,内缩至螺母下端面压紧被紧固件,螺母、滚动体、被紧固件互锁形成,螺母无法逆转;拆卸螺母时,须用工具或先将自锁锁销取下释放弹簧, ...
【技术保护点】
1.永不松动互锁止逆螺母,其特征是:所述螺母为平面互锁止逆螺母,在螺母下端面向上端面斜向开设有弹簧孔,弹簧孔内放置有滚动体和弹簧,滚动体部分凸出螺母下端面,弹簧孔上端孔口开设有锁销孔,插有自锁锁销,滚动体通过弹簧与锁销连接。/n
【技术特征摘要】
1.永不松动互锁止逆螺母,其特征是:所述螺母为平面互锁止逆螺母,在螺母下端面向上端面斜向开设有弹簧孔,弹簧孔内放置有滚动体和弹簧,滚动体部分凸出螺母下端面,弹簧孔上端孔口开设有锁销孔,插有自锁锁销,滚动体通过弹簧与锁销连接。
2.根据权利要求1所述的永不松动互锁止逆螺母,其特征是:所述弹簧孔为斜孔,斜孔垂直于直径,斜孔的斜角a≤螺母与被紧固件的摩擦角,斜孔斜角的顶点为螺母旋向方向。
3.根据权利要求1或2所述的永不松动互锁止逆螺母,其特征是:所述螺母上弹簧孔数量为1-12个。
4.永不松动互锁止逆螺母,其特征是:所...
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