高锁紧联接螺母防松能力研究

Research on Locking Ability of High Lock Joint Nut

螺纹紧固件的松脱问题的关键在于螺纹的结构形状。高锁紧联接螺母牙型采用单一的三角形,但牙型角大于普通标准螺纹牙型角60°,装拆方便、容易制造。通过与标准螺纹受力分布和摩擦力矩的比较,表明这种高锁紧联接螺母螺纹副防松能力好、紧固性能可靠、使用寿命长。

The key to the loosening of thread fastener lies in the structural shape of the thread. The thread teeth of high locking connecting nut use the single triangle, but the teeth angle greater than the standard thread teeth angle 60°, it is convenient installation and easy to manufacture. By comparison with the standard thread on the force distribution and friction torque, It shows that good anti-loose ability, reliable fastening and long service life of the screw thread with high lock fastening joint nut.