Alloy guides believe that lubrication of the chain is a necessary maintenance, which not only improves work efficiency, but also prolongs the service life of the chain. Below we will briefly understand several common ways of lubricating chains. The first is the lubrication method that we commonly use for the chain of household machinery, which is to use an oil pot or oil brush to regularly brush the chain with oil. The second is to use an oil cup to drip oil into the gap between the chain plates through the oil pipe for the mechanical chain that is inconvenient to brush oil with tools. The third type is oil bath lubrication or splash lubrication, which uses a sealed transmission case, immersing a part of the chain in oil, and the latter is splashed by the oil pan. The fourth is to use oil pump pressure for oil injection lubrication, which is to continuously supply oil to the chain by the oil pump, so that the circulation plays the role of lubrication and cooling.

The maintenance and lubrication of the chain bearing by the alloy guide plate has plagued various user units for a long time. Due to the untimely and inaccurate manual lubrication of workers and the poor maintenance awareness of some workers, the service life of the chain is shortened and the failure rate is high. Redesign and check the contact strength and bending strength of the large gear, and take a larger safety factor. Improve the lubrication state of the reducer. After a long period of shutdown, it is best to crank the car or install an oil injection pump to circulate to improve the lubrication state at startup. The macromorphological characteristics of fatigue or stress corrosion fractures. There are stripes on the fracture surface of the broken tooth, which is the most important evidence of fatigue fracture—fatigue streaks. From this, it can be determined that the fracture property of the broken tooth is fatigue fracture. In the same kind of products, the chain is divided into the chain product series according to the basic structure of the chain, that is, according to the shape of the components, 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 the others are deformations of these.

 

We can see from the above chain structures that most chains are composed of chain plates, chain pins, bushings and other components. Other types of chains just make different changes to the chain plate according to different needs. Some are equipped with scrapers on the chain plate, some are equipped with guide bearings on the chain plate, and some are equipped with rollers on the chain plate, etc., These are all modifications made to apply in different applications. The sprocket should be mounted on the shaft without wobble and skew. It has a strong adsorption force on metals, and can form a tight adsorption film on the interface of metal and oil to isolate the erosion of water, moisture and acidic substances; rust inhibitors can also prevent oxidation and prevent the formation of acidic oxides, thereby preventing the formation of acid oxides. to rust prevention. So that the air bubbles can quickly overflow the oil surface, lose the stability and be easy to break, thus shortening the existence time of the air bubbles.