1, effective selection of gear oil. Gear oil in the theme activity in the pipeline, there will be viscous, and too high viscosity, it will cause a great deal of internal sliding friction, hydraulic oil hot, plus hydraulic oil theme activity friction resistance. When the viscosity is too low, it is easy to form leakage, which will reduce the capacity output power of the management system. Therefore, the hydraulic oil with suitable viscosity and good viscosity-temperature characteristics is generally selected. In addition, when the hydraulic oil in the pipeline theme activities, there is also a loss of pressure loss and some pressure loss, so the design of the pipeline to minimize the pipeline, in addition to reduce the elbow.

2, assuming that the implementation of the problem with speed, so in the selection of speed control loop, not only satisfying the demand for speed, but also to minimize the loss of output power. The general automobile tail plate hydraulic press management system speed control loop key has: saves the speed control loop, the capacity speed control loop, the capacity saves the speed control loop. During the saving speed control loop output power loss is large, low speed stable. And the capacity speed control loop has no loss of overflow, no loss of saving, high output power, but low gear practical ability is poor. Assuming a satisfactory two levels of begging together, can choose differential pressure variable plunger pump and save valve composed of capacity saving speed control loop, and save the valve on both sides of the pressure difference as small as possible, in order to reduce pressure loss.

3, gear oil flow through a variety of hydraulic solenoid valve is not good to prevent the loss of pressure and total flow loss, this part of the kinetic energy loss in the kinetic energy loss accounts for a large proportion. Therefore, the effective selection of hydraulic machinery, pressure regulating pressure valve is a key level to reduce the loss of output power. The total flow valve according to the management system of the total flow production scheduling operation scale to select and ensure that its small practical total flow can be satisfied with the application of beg, pressure valve pressure in the satisfactory hydraulic car tail plate all the normal working condition, as far as possible to take the lower pressure.