How to debug a Three-beam And Four-column Hydraulic Press
①When debugging a 100-ton four-column hydraulic press, jog first: jog the pump first, observe whether the oil pump is turned correctly, the power supply is reversed to X but there is no oil output. Sometimes accidents may occur * Therefore, remember that you can only "jog" when the operation starts. The pump can be put into continuous operation and no-load debugging until the sound of the pump is normal and the oil is continuously outputting and there are no other abnormal phenomena.
②No-load debugging of 100-ton four-column hydraulic press: first run at low speed for 10 to 20 minutes, and sometimes it is necessary to remove the connection between the oil cylinder or oil motor and the load. Especially in cold seasons, this kind of low-speed operation without load (warm-up operation) It is especially important that some imported equipment often have strict requirements on this, and some are equipped with heaters to heat up the oil in the fuel tank. First, conduct a trial operation for the actions that can be operated at low speed and low pressure.
3. Gradually and evenly increase the pressure and accelerate. The specific operation method is to repeatedly tighten and immediately loosen the pressure of the overflow valve, the defect valve, etc. or the adjustment handle of the valve for several times* and observe the rise and fall of the pressure and the change of the actuator with a pressure gauge. Changes in speed * conditions such as heat generation, vibration and noise of the oil pump. Identify and solve problems in a targeted manner.
④According to the action cycle table combined with electrical machinery, first debug each single action, and then transfer to the cycle action debug to check whether each action is coordinated. During the debugging process, there will generally be some problems, such as crawling, impact and non-reversing faults, especially for complex domestic and imported equipment, if there is a big problem, you can consult together, and if necessary, you can ask the hydraulic equipment manufacturer for help
⑤The 100-ton four-column hydraulic press finally enters full-load debugging, that is, according to the technical performance of the hydraulic equipment, the maximum working pressure and the maximum (small) working speed test are carried out to check the power, heat, noise and vibration, high-speed impact, low-speed crawling, etc. Check the oil leakage of each part, and often the parts that do not leak under no-load leak oil when the pressure increases. Find problems, eliminate them in time, and make written records5
If everything is normal, the test piece can be processed. After the test run, the machine tool should generally be restored after parking, and detailed debugging records should be archived. Some imported equipment commissioning records can be used as the basis for claims.
⑥ The handles of the 100-ton four-column hydraulic press that have been debugged by the above methods should generally not be moved. All handwheels should be loosened for the equipment of the packaging factory. For equipment that will not be used for a long time, the handwheel of the pressure valve should be loosened to prevent the permanent deformation of the spring and affect various failures when the mechanical equipment is activated. performance.
