Couplings are increasingly being used in precision machinery controlled by servo systems, such as machine tools and semiconductor system manufacturing machinery. In these fields, unlike general manufacturing machinery, the coupling must require its output to have a high followability relative to the input.

Especially when used on machine tools that require high-frequency forward and reverse rotation, high-precision positioning, and high-speed rotation above 20,000r/min, the coupling must not only have high rigidity itself, but also have high elasticity that can withstand repeated torsional loads. Fatigue limit ability to adapt to high speed operation.

Therefore, the coupling must have the characteristics of high torque rigidity, zero backlash, elastic body compensation for the radial, axial, and angular deviations of the two shafts during the transmission process of the manufacturing machine, and the characteristics of clockwise and counterclockwise rotation. .

In the past, people only considered the coupling as a mechanical component. However, with the diversification of the use of the mechanical device itself, in order to achieve higher performance, the familiarity with the coupling has changed from a simple Mechanical components are transformed into important mechanical elements that can influence the function of the entire mechanical system.

Therefore, it is becoming more and more difficult to meet the requirements of users only by the independent product development of coupling manufacturers. Now, it has become a trend that users and manufacturers work together to jointly develop couplings that meet the requirements of mechanical systems. Botou Dazhengwei will meet your requirements.

The weak independent innovation ability of coupling companies has been an old problem faced by the coupling industry for a long time. However, with the rapid development of automobiles, construction machinery and other related fields, the material, performance and strength of supporting couplings The technical requirements of enterprises have risen to a new level, so the issue of innovation ability has become more prominent.

At present, the international development trend of coupling products only supports the following aspects:

First of all, the power transmission coupling device is developing along the direction of miniaturization, high speed, and standardization, so the application of special couplings, the development of planetary couplings, and the development of low-vibration and low-noise couplings have become Some characteristics of coupling design;

Second, due to the large-scale development of mechanical equipment, the working parameters of the coupling have increased, such as the transmission power of the high-speed coupling is 1000-30000kw;

Third, due to the wide application of hard tooth surface couplings and the increasing number of couplings with high-speed and high-performance requirements, gear grinding processing is required to improve both efficiency and quality; in addition, regarding coupling materials and heat treatment With the development of self-facing couplings, it has gradually attracted people's attention.

However, most of the coupling manufacturers in my country are basically unable to keep up with these trends. They can only repeat low-level construction and compete at low prices in the low-end market. With the continuous upgrading of the automobile industry and machinery manufacturing industry, the low-end coupling market will soon be saturated, and the business risk of enterprises will be greater at that time.

In addition, the supply risk of raw materials should also attract attention. On the one hand, although the domestic coupling steel market is stable, the price is showing an upward trend. On the other hand, the starting point for improving the quality and performance of the coupling is the raw material. The development trend of the international coupling steel is low-alloy steel containing Cr, Ni, Mo; Infiltration steel; the fourth is free cutting steel. However, the number of special steel enterprises that can provide high-quality coupling steel in China is relatively small, and it is expected that the competition for resources among enterprises will become more intense in the future.

Under the circumstances of the rapid development of today's machinery industry and science and technology. As a member of the machinery industry, the coupling plays a self-evident role.

Coupling is a mechanical device that connects two shafts or shafts and rotating parts, and rotates together without disengagement during the process of transmitting motion and torque. It is an indispensable connecting part in the mechanical transmission shaft system. It has many types, large dosage, and wide application range. It is a general-purpose basic transmission part. There are many types of couplings, including rigid couplings, flexible couplings, elastic couplings and safety couplings. Their basic function is to transmit motion and torque. However, according to different types of couplings, in addition to the basic functions, there are other auxiliary functions, such as the function of compensating axial, radial, and angular displacements, as well as different degrees of vibration reduction, buffering functions, and overload safety protection functions. To meet the needs of different mechanical equipment transmission systems.

1. The development and current situation of product production With the development of machinery industry and science and technology, higher requirements are put forward for couplings. It not only needs to meet the requirements of high speed, heavy load and high precision, but also should meet the requirements of stable operation and transmission efficiency. High, long service life and simple maintenance requirements. In order to meet the needs of the market and meet the needs of different transmission systems, many different types of new couplings have been developed to meet this need. In recent years, my country's coupling industry has developed rapidly, and the degree of standardization is also high. There are only about 90 national standards and industry standards for couplings. There are so many standards, which will undoubtedly greatly promote the application and production of couplings, and also guarantee the market to provide coupling products with advanced technology and reliable quality. The number of coupling standards in our country is far more than that of foreign advanced industrial countries, because they mostly appear in the form of manufacturer samples, so there are few national or industry standards.

The technical level of couplings, whether it is structural type, technical parameters and performance indicators, most of them have reached the level of similar foreign products. But in terms of product processing accuracy, quality and service life, there is a big gap, and some can only reach the level of the 1980s. The reason is that one is related to the form, scale and management level of the organization of production, and the other is that the processing equipment is relatively old, the production efficiency is low, and the processing accuracy is poor. Before the 1980s, the production of couplings in our country was produced by the main engine factory itself, and there was no professional manufacturer of couplings. However, after the 1980s, the production of couplings has gradually moved towards marketization, and has developed rapidly. Hundreds of large and small professional manufacturers have formed, and their annual output value has reached more than one billion yuan.