1/06/2020

The reason of water ring vacuum pump shaft fracture



Liquid chemicals are pumped and discharged frequently in many manufacturing industries, so the use of various pumping machines and equipment is essential. The water ring vacuum pump is not only simple in structure and convenient in maintenance, but also suitable for sucking liquid and reducing flammable and explosive substances, such as vapor, smoke, water vapor, etc. Therefore, it is warmly welcomed by many manufacturing industries. Next, the manufacturer of 2bv6 water ring vacuum pump will show you the reason for its shaft fracture.
The bearing end cover gap of 1.2bv6 water ring vacuum pump diesel engine is too large or seriously corroded, which causes the shaking of the front and rear during operation.
2. If the main rolling bearing on the end line has crevice corrosion or the rolling bearing turns over, the vibration at the rear side of the diesel engine shaft will be more and more large.
3. The main rolling bearing of the mechanical equipment is damaged too much, resulting in long-term falling off and cracking of the rear half of the diesel engine shaft. This is usually because the axial vibration of the diesel engine shaft is often caused by the fracture of the diesel engine shaft.
4. When the water ring vacuum pump shaft bends too much and is not concentric, and the clearance flow of the main rolling bearing is tight and unevenly loose, the diesel engine shaft is blocked in the process of rotation, so if the front, rear, left and right loads of the diesel engine shaft are uneven, the axial vibration will occur very frequently.
5. The main rolling bearing and crankshaft rolling bearing have multiple cracks corrosion, which will gradually weaken the gap corrosion position force of the support plate, so the axial vibration of the shaft will be very frequent. If the root crack corrosion occurs after the in-situ stress change, the fracture will occur between one shaft and the arm.
6. If the clearance between adjacent main rolling bearings is too large, the clearance between the last two main rolling bearings and the first two main rolling bearings will be very large. If the clearance is too large, there is a flywheel behind the diesel engine shaft and a pulley in front of the diesel engine shaft. Too much pressure on both sides of the diesel engine shaft will also cause frequent axial vibration.
7. The diesel engine shaft of mechanical equipment is loaded with air compressor. When the load of air compressor expands, the diesel engine shaft will be corroded or loosened, which will cause axial vibration.
8. The supporting plate force of the rolling bearing of the water ring vacuum pump and the coaxiality of the main shaft bearing vary greatly, which will concentrate the in-situ stress on the arm. In addition, the arm itself is weaker than the motor shaft, which is easy to break.
The above is the reason why the shaft of 2bv6 water ring vacuum pump is damaged. On the surface, such common faults usually occur in an instant, but in fact, they are the result of the deterioration caused by the accumulation of quantitative changes to a certain extent. Therefore, in normal application, proper prevention and maintenance based on matching shaft fracture still has certain preservation opportunities, I hope you can be familiar with it.

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