[Asia Fluid Network News] hydraulic pump is a hydraulic component, in today it is the use of more frequent pump. Hydraulic pump works mainly to achieve the power machine, such as motors and internal combustion engine and other mechanical energy into liquid pressure energy. Hydraulic pump life of many factors, in addition to the pump design, manufacturing factors and some of the pump-related components such as couplings, filters, etc., the operation of the test run and so on are also related. Analysis of the working principle of the hydraulic pump Hydraulic pump is to provide a hydraulic fluid pressure of a hydraulic component, is a pump. Its function is to convert the mechanical energy of the power machine into the pressure energy of the liquid. The working principle of a single plunger pump is that the cam is rotated by the motor. When the plunger drives the plunger to move upward, the volume of the seal formed by the plunger and the cylinder decreases, the oil is extruded from the sealed volume and discharged through the check valve Need to go. When the cam rotates to the descending part of the curve, the Spring forces the plunger down to create a certain degree of vacuum, and the oil in the tank enters the sealed volume under atmospheric pressure. The cam continuously raises and lowers the plunger, periodically reduces and increases the volume of the seal, and the pump continues to suck and drain oil. The basic working principle of the hydraulic pump: (1) The change of the sealed volume is the root cause of the suction and discharge of the hydraulic pump, therefore, the volume of the seal that can be changed is the basic structure that the hydraulic pump must have. Therefore, also known as hydraulic pump volumetric hydraulic pump. The flow rate generated by a hydraulic pump is proportional to the amount of change in her sealed volume and the number of volume changes per unit time. ⑵ with isolated suction chamber and drain chamber device. So that the pump can continuously and regularly inhale and discharge the working fluid, this device is called the flow device. The structure of the flow distribution device varies depending on the type of the hydraulic pump, and there are a valve type flow distribution device, a disk type flow distribution device, and a shaft type flow distribution device. ⑶ working fluid in the tank always has an absolute pressure of not less than 1 atm, which is the necessary external conditions to ensure that the pump can suck liquid from the tank. Therefore, the general level of the fuel tank is always connected with the atmosphere. The working principle of the hydraulic pump is mainly reflected in the change of volume of the pump chamber during its movement so that the compressed fluid can make the fluid have the pressure energy to reach the working status. Although this is a new type of product, it does not delay people's favorite. The research and development of its work has received the attention of many people.
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