Introduction to hydraulic system of hydraulic pipe bender

We have already introduced a lot about the structure of single-end pipe bending machine in terms of nouns, and there is not much to clarify here. Let’s take a look at the single-end pipe bending machine, also called hydraulic pipe bending machine.
This type of equipment deploys a common hydraulic system to explain that because the important power of the hydraulic pipe bender depends on the hydraulic system to provide power, we need to introduce what hydraulic systems are. An oil circuit control board, also called an oil circuit board, has four sets of solenoid valves, and each set of solenoid valves controls one action unit. Like our DW-89NC single-head hydraulic pipe bender, there are a total of four groups of control units, pipe bending, clamping, core pulling, and auxiliary push. Since each department operates independently, it is necessary to have a separate solenoid valve. control.
A set of pressure-retaining valves: pressure-retaining valves are used for clamping, because when the pipe is bent, it will receive the expansion force. If there is no pressure-retaining valve to maintain the stability of the oil pressure, the clamping will not be able to clamp, and it will appear when the pipe is bent. Wrinkle deformation and other signs. A set of relief valves: The important function of the relief valve is to control the hydraulic power of each hydraulic solenoid valve, like a master valve.
In the normal use of hydraulic pipe benders, it is common for us to have power dissipation in a certain area, accidentally pressing the clamping button on the computer board will lose power, or there will be no pressure on the bend, core pulling, and auxiliary push, just like The button does not work. In fact, this is because the solenoid valve is stuck in a certain area, and because the hydraulic oil is placed in a rigid tank, dust, iron pins and other sundries will inevitably get lost in the workshop. Run the filter screen and mix it into the oil pump, and then the transmission of the oil pump enters the solenoid valve, so there will be a stuck valve sign. If a single work area is like a clamp, etc., a stuck valve appears. Essentials: Disassemble the corresponding solenoid valve to completely disassemble the valve, and use clean gasoline or kerosene to wash the valve. If there is no response to the keys in the entire area, the common problem is that the overflow valve is missing, which is the same as the solenoid valve disassembly method. Clean the overflow valve.