The maintenance of any machine must first understand its structure. Fig. 2 shows the structure of the steel pipe straightener, so many rollers are driven by chains. Manufacturers' instructions generally recommend adding engine oil, which is caused by a habit and the universality of engine oil. In fact, if you want to maintain it well and scientifically, you must treat it professionally. For example, the steel pipe straightener is a heavy machinery, and the lubricating effect of engine oil is far less than that of grease due to the high pressure. The first is the concentration of oil (commonly known as butter). It has a buffering effect on heavy loads, and its viscous adhesion is much stronger than that of engine oil. It is suitable for mechanical movements with light fit and small clearance, such as engines. Of course, for complex mechanical work, lubricating oil can't be perfect, such as the spindle box of lathe, the clutch part with high speed, which is suitable for using engine oil, and the load of end shaft is large, which is suitable for using grease, but in a box, only one can be taken care of, and the lathe uses wheel oil. Therefore, for the lubrication of steel pipe straightener, such as chain, it is necessary to apply oil first to lubricate the ball and roller parts of the chain. Because the gap between these parts is too small for grease to enter, it is best to apply oil. It's best to apply grease after adding oil, because when the sprocket teeth mesh with the chain, the thin oil doesn't work at all. Grease is suitable to buffer the impact between sprocket teeth and chain, or it is usually a mixture of mixed oil and grease. .
On the other hand, the lower left corner of Figure 2 is a schematic diagram of pressing steel pipes by upper and lower rollers. The roller has strong pressure and steel pipe support, and the working time is long. It is also not conducive to the maintenance of steel pipe straightener. In fact, metal is not dead, hard or hard as people think. No, metals also have fatigue and fatigue resistance. Therefore, the steel pipe straightener had better work for a while and stop for a while. Intermittent machining of metals has less wear than continuous machining. . As for the frequency, it's hard to say. According to your actual situation, if the workload is large, the profit is large, the working hours are long, and the profit created exceeds the loss, then you can spend a little longer, and vice versa. You can usually work all morning and have lunch, which is no problem. It is best not to display continuously for 24 hours.
Thirdly, if the steel pipe straightener paints, the paint must be cleaned at the end of each shift, and the consequences of paint solidification can be imagined. It is suggested to dry the paint, add thinner (officially called thinner or solvent oil), start the oil pump, run for half a minute, and then drain the oil for collection. Repeat after adding thinner, and the released coating mixture can be used for paint mixing later, or slowly stirred after work. Finally, focus on cleaning the paint discharge valve, and check whether the paint pipe stores paint and eliminates it. Imitation paint dry knot is invalid for the next work.