Analysis of the causes of overheating of fully automatic terminal machine bearings
There are many reasons for the overheating of the fully automatic terminal machine bearings. The common reasons are as follows. Let's take a look. 1. The bearing cap and the shaft rub against each other. Since the axis of the shaft and the axis of the mechanical equipment it drives are not in a line when the terminal machine is assembled, or the inner circumference of the bearing cover is eccentric due to inaccurate machining, the bearing cover partially and the shaft rub against each other. Light bearings are hot, and severe smoke is required. The large high-speed motor will quickly become red. At this time, stop immediately, otherwise the fully automatic terminal machine will be burnt. 2. If the belt is too tight or the fully automatic terminal machine is not on the same line as the shaft center of the driven machine, that is, the difference in heart will increase the bearing load and generate heat. 3. The inner and outer rings of the steel ball bearing are unbalanced, which is one of the causes of heat. The imbalance between the inner and outer rings of the terminal machine may come from machining. Because the base and end caps of the fully automatic terminal machine are machined separately, sometimes the bearing holes on the two end caps are not coaxial (ie the center line is not on a line). In addition, the assembly is poor, the screws on the end cover are unevenly tightened, dust and dirt on the mouth, and the inner and outer rings may be unbalanced. If the inner and outer rings of the bearing are unbalanced, the steel ball and the inner and outer rings will be scraped, which will increase friction and generate heat. If there is no other reason, wipe the machine mouth and reinstall it, and tighten the screws one by one in the diagonal order. A small amount of error formed during processing can be improved by a gradual automatic adjustment. 4, too much or too little lubricant, is also the cause of fever. The bearing is used for a long time, the internal lubricating oil is gradually reduced, so that the lubrication is not enough, the friction loss is increased, the bearing is heated, and the bearing is damaged due to long-term oil shortage operation. Too much oil or too thick oil can also cause the bearing to overheat. In addition, the lubricating oil is mixed with hard grain impurities, the bearing is not cleaned, or the bearing is cleaned with dirty oil, so that sand and iron filings are left in the bearing, which will increase the mechanical friction of the bearing, cause the bearing to heat up, and the bearing due to the action of impurities It is easily damaged. Concerned about surprises Label: Analysis of the cause of overheating of fully automatic terminal machine bearings Previous: Why the metal stamping parts will be torn and skewed Next: Screw air compressor first start must check items
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