What causes the failure of the hydraulic pump in the four-column hydraulic press

When we use the four-column hydraulic press, sometimes we will encounter the failure of the hydraulic pump, but we do not know why it will fail, and what are the reasons for its failure? Here we will give you a popular science about the reasons for the failure of the four-column hydraulic pump.

The first point is that the oil viscosity of the four-column hydraulic press is too high, which will increase its oil absorption resistance, prone to cavitation phenomenon, from the lack of pressure and flow, the oil viscosity is too low, which will increase leakage, reduce volume efficiency, and easy to inhale air, causing impact or crawling.

The second point is that when the environment is not clean and does not pay attention to civilized production, let iron filings, impurities, dust, etc., mix with oil, light will affect the normal work of the system, and heavy will affect the life of the pump.

The third point of the pump installation of the pump shaft and the drive motor shaft should be connected with a good coaxiality, but if the coaxiality is out of whack, it may cause irregular noise and uneven movement, serious damage to the parts, there are steering requirements of the hydraulic pump, if the steering is wrong, not only can not be transferred out of the oil, but also will soon damage the parts, if the pump speed is improperly selected, It has a great impact on the working performance of the pump, and the suction pipe and discharge pipe joints, if the seal is not good, will let the air invade.

Fourth, if the four-column hydraulic press tank capacity is small, poor heat dissipation conditions, will make the oil temperature is too high, often bring a lot of problems, the tank capacity is too large, the oil level is too low, may also make the hydraulic pump suction oil, the hydraulic pump suction port height is improper, suction pipe diameter is too fine and filter through the oil section is too small, and so on will affect the oil absorption resistance. Impurities in the tank can not be well precipitated, the outside of the iron filings, dust, etc. are not well sealed, it will cause the failure of the pump.