Analysis of the principle of the lock nut

Although the lock nut may seem inconspicuous, it actually has a great effect. Compared with ordinary nuts, there is a special engineering plastic inside the thread of the anti-loosening nut, and it is attached to the thread to make the inner and outer threads of the nut squeeze the engineering plastic during the tightening process, thereby producing a strong In this way, the friction between the inner and outer threads can be greatly enhanced, thereby providing a great resistance to vibration. The general nut anti-backward friction force is related to the tightening pressure between the inner and outer threads. What it relies on is actually the friction force generated by the pressure after the screw is tightened, so as to prevent the backlash, but when the screw is slightly loose When the pressure is reduced, the anti-return effect will be quickly lost, and the anti-loosening nut fully solves this problem, so it has a strong anti-loosening ability.