Timing pulleys and sprockets are slowly becoming standardized in classification

Chains sprocket and synchronous pulleys are the key basic transmission parts, and their transmission characteristics are to implement long-distance transmission without disturbing the speed ratio. Commodities such as synchronous pulleys and sprockets have now become indispensable key mechanical basic transmission parts in the national economy. The slurry valve drive settings are divided into two categories: manual and electro-hydraulic operation. It has been widely used in mining, agriculture, engineering and forestry machinery, petrochemical industry, automatic assembly lines and other transmission equipment. It can be seen that the application scope of commodities such as chains and synchronous pulleys is very wide.

my country continues to use the three-arc straight-line tooth profile of the former Soviet Union and Europe. Although the transmission performance is relatively good, the design and production are relatively complicated. The involute tooth profile with a pressure angle of 30 degrees introduced by the American Morse company, the chain drive formed by it is called HV chain drive, and has very good fast transmission performance. Another prominent feature is the application of CAD/CAM technology, which directly promotes the development of sprocket technology. Sprocket drawing software has been born in the market. Using those software only needs to input relevant parameters, such as the relevant size of the configuration chain, the structure of the sprocket and the number of teeth, etc., and the operation diagram of the sprocket can be drawn very quickly.

Due to the accelerated marketization and internationalization of chains and synchronous pulleys, the classification of sprockets has gradually become standardized. According to the classification of chain and synchronous pulley products, in recent years, the system of laundromats has become more and more perfect, and the services of those franchisees have also been very good. Usually divided into A series (American standard) and B series (European standard). The A series is the size specification that meets the American standard and the Japanese standard. This product is widely used in the American and Asian markets; the B series is the size and specification that meets the European chain standard, and is generally suitable for use in the European market. A and B series are divided into three types: chip type, single side with boss type and two sides with boss type. Chip type, single side with boss and two sides with boss are A type, B type and C type respectively. And according to the difference of the chain, the A, B, C3 types can also be divided into single row, double row, three row and four row, etc.; according to the difference in the chain model, it can also be divided into long and short pitch precision rollers Chain sprockets and Conveyor Chain sprockets, etc.