What should I do if the working speed of the servo hydraulic machine drops?

1. The output oil flow of the hydraulic pump is small and the pressure is low.
Solution: Solve the problem of small output flow and low output pressure of the hydraulic pump of the press.
2. As the oil temperature increases, the viscosity of the oil decreases, the leakage increases, and the energy flow decreases.
The solution: control the oil temperature.
3. The hydraulic system design of the servo hydraulic machine is unreasonable. When the load changes, the flow rate entering the hydraulic actuator also changes accordingly, resulting in a decrease in the speed of the actuator.
Solution: Reasonably plan the hydraulic system so that the system flow does not change with pressure changes.
4. Impurities are mixed into the oil, blocking the saving port of the flow regulating valve, resulting in a decrease in operating speed and instability.
Solution: clean the flow valve and other components, and replace the contaminated oil.
5. There is air in the hydraulic system.
Solution: Find out the cause of the air intake in the hydraulic system, and take measures to remove the air in the hydraulic system.
6. The internal and external leakage of each component of the system is serious, and the flow of oil entering the execution chamber of the hydraulic cylinder is reduced.
Solution: clarify the cause and location of internal and external leakage, and take measures such as replacing severely worn components to eliminate internal and external leakage.