The servo hydraulic press exhibits such a phenomenon that when the engine throttle is fully opened, the inlet oil pressure of the torque converter is still less than the standard value. The reasons for this phenomenon are as follows: the oil supply is small, the oil level is lower than the suction port level; the oil pipe is leaking or blocked; the oil flowing to the transmission is too much; the oil inlet pipe or the oil filter is blocked; the hydraulic pump is severely worn or damaged ; The oil suction net is not properly installed; what to do if the hydraulic pressure of the servo hydraulic machine cannot keep up, and the oil foams; the inlet and outlet pressure valves cannot be closed or the spring stiffness is reduced.
The solution to the low oil supply pressure of the four-column hydraulic machine: Check the oil level first; if the oil level is below the scale, make up for the oil; if the oil level is normal, check for leakage in the inlet and outlet pipes; Be excluded. If the inlet and outlet pipes are well sealed, check the operation of the inlet and outlet pressure valves. If the inlet and outlet pressure valves cannot be closed, they should be removed to check whether there are cracks or scars on the parts, and whether the oil passages and oil holes are If it is unblocked, and whether the stiffness of the tension spring becomes smaller, the problem should be solved in time. What to do if the hydraulic pressure of the servo hydraulic machine can't keep up? If the pressure valve is normal, the hydraulic machine should remove the oil pipe or filter to check. If the oil pipe is unblocked, check the hydraulic pump. Replace the hydraulic pump. If the hydraulic oil foams, check the installation condition of the oil return pipe. If the oil level of the oil return pipe is lower than the oil level of the oil sump, you should reinstall the oil return pipe. The servo hydraulic press is mainly composed of a bow-shaped frame, a stamping slide operating table, four guide columns, an upper main cylinder, a proportional hydraulic system, a servo electrical system, pressure sensors, pipelines and other parts.
