Piston pump is a kind of hydraulic pump that can convert mechanical power into hydraulic energy. Its structure is mainly composed of plunger, cylinder, stator and crankshaft. Among them, the stator is one of the important parts of the piston pump, which is located in the cylinder body and constitutes the oil pressure mechanism together with the crankshaft and plunger. In some piston pump structures, the flow and pressure of oil can be changed by adjusting the eccentricity of stator, so as to realize the adjustment of piston pump. Specifically, the stator can adopt an adjustable design to change the relative position between the stator and the plunger, thus affecting the stroke and working efficiency of the plunger and thus changing the radial position of the cylinder. In some plunger pumps, the eccentricity of the stator can be adjusted by adjusting two plungers with opposite radial positions on the plunger pump body. Specifically, when the stroke of the plunger is at two extreme positions, the radial distance between the plunger and the stator is maximum or minimum. At this time, replacing the plunger with different lengths can change the radial position on the plunger pump body, thus adjusting the eccentricity of the stator. Adjusting the eccentricity of the stator can accurately adjust the flow and pressure of the plunger pump. Specifically, when the eccentricity of the stator increases, the stroke of the plunger changes relative to the stator, and the cross-sectional area of the oil also changes, so that the flow and pressure of the oil can be changed. At the same time, it should be noted that adjusting the eccentricity of the stator will also affect the service life of the piston pump. If the eccentricity is too large, the friction between the plunger and the cylinder will increase, thus accelerating the wear of the plunger and the cylinder and reducing the service life of the plunger pump. Therefore, when adjusting the eccentricity, it is necessary to choose the appropriate eccentricity range according to the specific work requirements and the use environment, and adjust it in the right way to avoid damage to the piston pump. 90L130-KN-5-DE-80-L-3-F1-F-03-GBA-35-35-24 90L130KN5DE80L3F1F03GBA353524 90-L-130-KN-5-DE-80-L-3-F1-F-03-GBA-35-35-24 90L130KN5DE80L3F1F03GBA353524 90L130-KN-5-DE-80-R-3-C8-H-03-GBA-35-35-26 90L130KN5DE80R3C8H03GBA353526 90L130-KN-5-DE-80-R-3-F1-H-00-GBA-32-32-24 90L130KN5DE80R3F1H00GBA323224 90-L-130-KN-5-DE-80-R-3-F1-H-00-GBA-32-32-24 90L130KN5DE80R3F1H00GBA323224 90L130-KN-5-DE-80-R-4-F1-H-03-GBA-26-26-24 90L130KN5DE80R4F1H03GBA262624 90-L-130-KN-5-DE-80-R-4-F1-H-03-GBA-26-26-24 90L130KN5DE80R4F1H03GBA262624 90L130-KN-5-NN-80-L-3-F1-F-03-GBA-35-35-24 90L130KN5NN80L3F1F03GBA353524 90-L-130-KN-5-NN-80-L-3-F1-F-03-GBA-35-35-24 90L130KN5NN80L3F1F03GBA353524 90L130-KN-5-NN-80-R-3-F1-F-03-GBA-35-35-24 90L130KN5NN80R3F1F03GBA353524 Besides adjusting the eccentricity of the stator, there are other ways to adjust and control the flow and pressure of the plunger pump. The following are several commonly used adjustment methods: 1. Adjust the speed: The flow and pressure of the plunger pump are closely related to the speed, so it is also a common way to adjust by changing the speed of the plunger pump. 2. Change the number of plungers: The increase or decrease of the number of plungers in a plunger pump will change the time of oil flowing through the cylinder, thus changing the flow rate and pressure. 3. Replace the plunger: the diameter and length of the plunger will affect the time and speed of oil flowing through the cylinder, so it can also be adjusted by replacing the plunger with different diameters and lengths. 4. Use adjustable valve group: In some plunger pumps, the flow and pressure can be adjusted by adding adjustable valve groups, which can be embedded in the inlet or outlet of the plunger pump, adjusting cavity and other positions. For the flow and pressure adjustment of piston pump, it is necessary to choose the appropriate adjustment strategy and control method according to different application scenarios and work requirements. For example, in some hydraulic systems, it is necessary to accurately control and adjust the flow and pressure of piston pump to meet the working requirements. At this time, precise hydraulic control elements such as proportional hydraulic regulator can be used to realize accurate control of the flow and pressure of the plunger pump. 90-L-130-KN-5-NN-80-R-3-F1-F-03-GBA-35-35-24 90L130KN5NN80R3F1F03GBA353524 90L130-KN-5-NN-80-S-4-C8-H-03-GBA-38-38-24 90L130KN5NN80S4C8H03GBA383824 90-L-130-KN-5-NN-80-S-4-C8-H-03-GBA-38-38-24 90L130KN5NN80S4C8H03GBA383824 90L130-KN-5-NN-80-S-4-C8-H-03-GBA-42-42-24-F003 90L130KN5NN80S4C8H03GBA424224F003 90-L-130-KN-5-NN-80-S-4-C8-H-03-GBA-42-42-24-F003 90L130KN5NN80S4C8H03GBA424224F003 90L130-KP-1-AB-80-L-3-F1-F-03-GBA-42-42-24 90L130KP1AB80L3F1F03GBA424224 90-L-130-KP-1-AB-80-L-3-F1-F-03-GBA-42-42-24 90L130KP1AB80L3F1F03GBA424224 90L130-KP-1-AB-80-R-3-F1-F-03-GBA-38-38-24 90L130KP1AB80R3F1F03GBA383824 90-L-130-KP-1-AB-80-R-3-F1-F-03-GBA-38-38-24 90L130KP1AB80R3F1F03GBA383824 90L130-KP-1-AB-80-R-3-F1-H-00-GBA-42-42-24 90L130KP1AB80R3F1H00GBA424224 In addition, in some special applications, it is also necessary to monitor and adjust the working parameters of piston pump in real time. At this time, sensors and automatic control systems can be used to realize real-time monitoring and feedback control of parameters such as flow rate, pressure and temperature of piston pump, thus ensuring the stability and reliability of piston pump. It should be noted that the service life and running stability of piston pump are closely related to the quality of hydraulic oil, the cleanliness of hydraulic system, the running environment and other factors. Therefore, when adjusting the flow and pressure of the plunger pump, attention should also be paid to the selection and replacement cycle of hydraulic oil and the cleaning and maintenance of the hydraulic system to ensure the normal operation and long-term stable operation of the plunger pump. To sum up, for the flow and pressure adjustment of piston pump, it is necessary to choose appropriate adjustment strategies and control methods according to different application scenarios and work requirements, and pay attention to factors such as hydraulic oil quality and maintenance of hydraulic system, so as to prolong the service life of piston pump and improve its stability.