The general nut will loosen itself during use due to vibration or other reasons. In order to prevent this phenomenon, the self-locking nut was invented. Self-locking nut Its function is mainly to prevent looseness and vibration. For special occasions. Its working principle is generally self-locking by friction. The types of self-locking nuts classified by function include nylon-enclosed, neck-closed, and metal-retaining devices. They are all valid moment type locknuts.
the principle of the self-locking nut is generally based on the friction force. The principle is that the embossed tooth is pressed into the preset hole of the sheet metal. Generally, the diameter of the preset hole is slightly smaller than the pressure rivet nut. The nut is used to connect with the locking mechanism. When the nut is tightened, the locking mechanism locks the ruler, and the frame cannot be freely moved to achieve the purpose of locking; when the nut is loosened, the locking mechanism is disengaged from the ruler and the frame edge is Ruler moves.
In order to avoid accidents, the demand for nuts has been further improved. Self-locking nuts have been developed. The self-locking nuts can relax well and resist vibration. There are four series that are common in daily life. The nut is a common component on the mechanical equipment. However, due to the vibration of the mechanical equipment during the work, the nut is prone to loose. In severe cases, it will cause damage to the mechanical equipment. First of all, we must understand the four common types of self-locking nuts.
Self-locking nuts
Self-locking nut common four series:
1、High strength self-locking nut
High-strength self-locking nuts are a class of self-locking nuts, with high strength and high reliability. It is mainly used in road construction machinery, mining machinery, vibration machinery equipment and so on.
2, nylon self-locking nuts
Nylon self-locking nut is a new type of high-vibration anti-loose and loose-proof fastening parts that can be used in various mechanical and electrical products with a temperature of -50~100°C. At present, it is mainly used in aerospace, aviation, tanks, mining machinery, automobile transportation machinery, agricultural machinery, textile machinery, electrical products and various types of machinery.
3, swimming self-locking nuts
The common swimming self-locking nut is a binaural sealed swimming self-locking nut, which is mainly composed of a sealing cover, a self-locking nut, a pressing ring, and a sealing ring. Its compact and reliable sealing is suitable for products whose working pressure is not more than 2atm and whose working medium is gasoline, kerosene, water or air using temperature is -50~100°C. However, it has a certain degree of difficulty in the manufacturing process and hermetic test.
4, spring self-locking nut
The spring clip self-locking nut is composed of an S-shaped spring clip and a self-locking nut. It is easy to use and has a very good reliability. Combining the nuts with the locking principle, different self-locking nuts were developed to prevent loosening of the nut during use. With the development of science and technology era, the use of demand in different replacements, its China in the self-locking nut technology is also constantly improving, is expected to converge at the international level.