THCombination sprocket-1

The normal operation of the entire conveyor or conveying system largely depends on the quality of the chain drive. Choosing the sprocket correctly is as important as choosing the chain. Firstly, the design selection of the chain and sprocket must be consistent. Simply put, the sprocket and the matching chain should be of the same standard specification to ensure good meshing.

Standard sprockets are divided into semi precision(Casting teeth, flame cutting processing teeth)And precision(Cutting and machining teeth)There are two basic types, the difference lies in the meshing and operation process with the chain.The sprocket with cutting teeth runs smoothly and has low noise, and is generally used in medium and high-speed conveying applications. But it may not be suitable for low-speed, large pitch conveying situations: sprockets with cast or flame cut teeth have low cost and sufficient lifespan when paired with engineering steel chains. General short pitch precision roller chain( GB/T 1243)And toothed chain(GB/T 10855)The sprocket of the medium and high-speed conveyor chain is made of steel or cast iron material, and the gear teeth are machined by mechanical cutting. The gear teeth are precision machined on the surface of the gear teeth when interacting with the chain. The sprocket material of the low-speed large pitch engineering steel chain is mostly made of steel or cast iron, and the gear teeth are cast or flame cut;The sprocket material of a flat top conveyor chain is generally made of steel, cast iron, or engineering plastic materials. The steel and cast iron teeth are mechanically cut, while the engineering plastic teeth are injection molded. However, there are also many exceptions, especially in the field of engineering transportation. In any case.To ensure the design, precision level, and surface accuracy of the interaction between the sprocket and the chain, it is necessary to match the chain.

According to the actual needs of the workload and usage environment, the sprocket of the conveyor chain can be made of various materials in various types and shapes. Standard sprockets can be used for most working conditions, and the tooth profile of the sprocket is specified in the conveyor chain standard. Generally, the base chain is a short pitch precision roller chain

　　(GB/T 1243)And toothed chain(GB/T 10855)The sprocket of the medium and high-speed conveyor chain is made of steel or cast iron material, with machined teeth and precision machining of the tooth surface when interacting with the chain. The sprocket material of the low-speed large pitch engineering steel conveyor chain is mostly made of steel or cast iron material, and the sprocket tooth shape is different from that of the short pitch precision roller chain sprocket used for transmission-Having a pitch gap(Separation amount)And the diameter of the bottom tangent circle is slightly smaller than the diameter of the tooth root circle, which allows the use of a tooth profile that is better than cutting roller chain sprocket teeth. It has a greater ability to accommodate the increase in chain pitch due to wear, making it easier to process the sprocket and adjust the chain length. Although non-standard chains and sprockets are also used in many conveying situations, standard sprockets are generally preferred.So sprocket design is more about determining its structure and size.Select materials and heat treatment methods.

Chain wheels should have sufficient strength and wear resistance, generally made of structural steel or cast iron, and other metal or non-metal materials can be used for special occasions.