Selection Of Hydraulic Oil For Hydraulic Cutting Machine

- Oct 17, 2019-

Oil pressure cutting machine overflow valve spool action, if the medium contains impurities (such as the residue of the damaged rubber seal), or because open too big, too strong and cause the valve spool hair card can not reset, will make the entire oil system unloading.After this situation, the mechanical actuator will often suddenly appear unable to move (but still can hear the sound of the rotation of the pump) failure phenomenon.At this time, the overflow valve should be removed for cleaning, and the valve core should be put back after reset.



When the jacket of quick change joint 6 compression spring 4 moves to the left, the steel ball 5 has (6~10) can exit outward from the ring groove.The joint core 7 can be pulled out from the joint 3.When the quick change joint is released, two of the conical valves 2 and 8 are respectively closed under the action of spring 1 and 9, which ACTS as a one-way valve, so that the two separate hoses will not leak oil due to the closure of the conical valve.



When the hydraulic oil flows through the hydraulic valve, there will inevitably be pressure loss and flow loss, and these energy loss in the total energy loss occupies a large proportion.Therefore, we should reasonably choose the hydraulic device, adjust the pressure of the cutting machine pressure valve.Under normal circumstances, in the pressure valve pressure can meet the normal operation of the hydraulic equipment, should try to choose a lower pressure.



Reasonable selection of hydraulic oil, because if the viscosity of hydraulic oil is too high, will produce a relatively large internal friction, so that the oil heat, will increase the oil flow resistance.



Filter design calculation is the basis of the hydraulic filter design work, is to determine the specifications of the hydraulic filter size, technological parameters, structure components, materials, such as material properties, the requirement of production capacity and technological conditions, equipment installation and use conditions, environment and climate conditions, selection of experimental data, proportional amplifier of related numerical as well as the related technical standard and so on.



In hydraulic transmission, liquid leakage is a problem that cannot be ignored.If the leakage is not solved, it will affect the normal application of hydraulic equipment and the development of hydraulic technology.



When the jacket of quick change joint 6 compression spring 4 moves to the left, the steel ball 5 has (6~10) can exit outward from the ring groove.The joint core 7 can be pulled out from the joint 3.When the quick change joint is released, two of the conical valves 2 and 8 are respectively closed under the action of spring 1 and 9, which ACTS as a one-way valve, so that the two separate hoses will not leak oil due to the closure of the conical valve.



When the hydraulic oil of the cutting machine flows through the hydraulic valve, pressure loss and flow loss are inevitable, and these energy losses account for a large proportion of the total energy loss.Therefore, we should choose a reasonable hydraulic, adjust the pressure valve pressure.Under normal circumstances, in the pressure valve pressure can meet the normal operation of the hydraulic equipment, should try to choose a lower pressure.



The moving parts are made of stainless steel, and the valve seat is made of a certain hardness and toughness of polyformaldehyde. In this way, the movement of the moving parts can be guaranteed to be flexible and the reliable sealing of the valve port can be effectively ensured through the reasonable selection of the materials.The hydraulic transmission and control system of hydraulic cutting machine is mostly based on petroleum hydraulic oil as the working medium.However, the device using special liquid as medium puts forward strict requirements on the function, design and manufacture of the hydraulic system, and manufacturers cannot provide special hydraulic components for each special medium.