Which aspects of the V/VQ series vane pump are vulnerable to damage?

The V/VQ series vane pump we often say in our mouth, when we use the V/VQ series vane pump device on the machine for a long time, after the oil pump is damaged, we must first check the appearance, connotation and related phenomena. When the following phenomena appear, it The corresponding cause can be determined, so what is its corresponding cause?

Responsibility determination after severe damage to the oil pump:

1. Bearing damage:

①When the vane pump is seriously damaged, it is only necessary to admit that the bearing is damaged, which can be regarded as improper installation. Because the bearing is damaged first after being stressed, and the parts are damaged later. Once the bearing is damaged, the shaft will swing and swing at a high speed It may cause damage to other components.

②If the bearing of the new vane pump is damaged first, other problems are fine. This is caused by misalignment or hard knocking when installing the oil pump. There is almost no wear and tear, and it can generally be used for 10-15 years. There is only a difference in noise between high-grade bearings and ordinary bearings, and the difference in life is relatively small.

2. Rust in the inner tank: When the oil pump is seriously damaged, only the rust in the pump exists. It can be regarded as the formation of water in the oil, because when the oil is normal, there will never be rust.

3. Poor oil quality: When the oil pump is seriously damaged, as long as there are dirt, sundries and foreign objects in the oil pump body or the pump core turns black, it can be regarded as poor oil quality.

4. Mandrel cracking: You should try to check the cracking position. If the material or heat treatment is not good, its damage point should be the weakest link, that is, the smallest diameter or the spline. If it is not cracked at the weakest position, it should be regarded as a device Inappropriate, the coaxiality error is too large, and sometimes the pump core will be broken after the resistance increases or the pressure is too high. The broken shaft is actually a kind of mechanical maintenance.

5. The stator has ribs: caused by poor oil absorption.