Common classification of fine self-locking nuts

The self-locking nut is to avoid the phenomenon that ordinary nuts become loose due to vibration and other reasons during operation. Self-locking nuts are mainly used for loosening and anti-vibration. Used in special places. The task principle is usually self-locking by friction. Self-locking nuts are divided into nylon sealing nuts, neck nuts and metal locking supports according to their functions. They are all zero torque type lock nuts.

The principle of self-locking nut is generally by friction force. Its principle is to press into the preset hole of sheet metal through embowel teeth. The aperture of the general square preset hole is slightly less than that of the riveting nut. The nut is connected with the locking mechanism. When the nut is tightened, the locking mechanism locks the ruler body and the ruler frame cannot move freely to achieve the purpose of locking; When loosening the nut, the locking mechanism disconnects the ruler body and the ruler frame moves along the ruler body.

In order to avoid accidents, the demand for nuts is further increased, and self-locking nuts are developed. Self-locking nuts can be well relaxed and anti-vibration. There are four major series commonly seen in its daily life. Nuts are common parts on mechanical equipment, but because of the vibration of mechanical equipment in the work, nuts are easy to loose, which will cause serious damage to mechanical equipment. First of all, we should understand the four common types of self-locking nuts.

Four common series of self-locking nuts:

1. Walking self-locking nut

The common traveling self-locking nut is the double-ear sealing traveling self-locking nut, which is mainly composed of four parts: sealing cover, self-locking nut, pressure ring and sealing ring. Its compact structure and reliable seal is suitable for the working pressure is not more than 2atm working medium for gasoline, kerosene, water or air temperature of -50~100℃ on the product. But it has certain difficulty in manufacturing process and airtight test.

2. High strength self-locking nut

High strength self-locking nuts are a classification of self-locking nuts with high strength and high reliability. It is mainly used in road construction machinery, mining machinery, vibration machinery and equipment.

3. Spring self-locking nut

The self-locking nut with spring clamp is composed of S-type spring clamp and self-locking nut, which is easy to use and has good reliability. To combine the nut with the locking principle, different self-locking nuts are developed to prevent the loosening of the nut during use. With the development of science and technology times, the use of demands in different renewal, its self-locking nut technology is also constantly improving, which is expected to be in line with international level.

4. Nylon self-locking nut

Nylon self-locking nut is a new type of high vibration and anti-tension fixing parts can be used in a variety of mechanical and electrical products at the temperature of -50~100℃. At present, it is mainly used in aerospace, aviation, tank, mining machinery, automobile transport machinery, agricultural machinery, textile machinery, electrical products and all kinds of machinery.

Self-locking nuts are used in railway casting, rail transit, transmission system, mining equipment, highway, military, oil production machinery, automobile industry, public facilities, subways, engines, construction machinery, aerospace, drilling equipment, Bridges, generators, agricultural machinery, shipbuilding industry, metallurgical equipment, trains, compressors, medical machinery, signal systems, wind power generation.