Cold drawing machine chain structure and using method
Cold drawing machine chain structure:
The cold drawn machine chain is divided into the chain product series according to the basic structure of the chain, that is, according to the component shape, the parts and parts that mesh with the chain, and the size ratio between the parts. There are many types of chains, but their basic structures are only the following, and others are variants of these types. We can see from the above several types of chain structures that most of the chains are composed of chain plates, chain pins, shaft sleeves and other components.
Cold drawing machine chain use method:
When the steel pipe is drawn, the inner link plate enters the gap between the two teeth of the pentagonal wheel in one piece. When the driving wheel rotates in the W direction, the A end of the inner link plate first meshes with one tooth of the pentagram wheel, and then the other tooth of the pentagram meshes with the end of the inner chain plate. The B end of the board advances. Since the rotation angle between the end hole of the inner link plate and the pin is larger than that of the A end when drawing the steel pipe, the hole wear at one end of the inner link plate is much faster than the other end under a unidirectional gravity transmission. When the B end is pulled off, the hole wear on the A end is only about 5mm-8mm. If it continues to be used, fatigue fracture will occur in the B-end hole soon. If it is used in this way (A, B end to wither position), the life of the inner link plate can be extended. The results show that the use of cold drawn machine chain turning is feasible.
Selection of lubricating material for cold drawing machine chain:
In order to reduce friction and wear between friction pairs, all friction reducing substances that can reduce frictional resistance can be used as lubricating materials. There are many types, including lubricating oil, grease, solid lubricant, etc. When selecting the lubricant used in the chain transmission, it is necessary to consider the coordination between the lubrication form, the ambient temperature and the chain specifications. Generally, high-quality mineral oils with stable chemical properties are used. The ones with pure ingredients, no oxidation, and no impurities are the best.