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Dalan Motor tells you the selection requirements for hydraulic motors
Do you know how many stages of hydraulic motor wear? Dalan Electric tells you that the wear of hydraulic motors is divided into three stages: initial wear, normal wear and abnormal wear. 1. Initial wear stage 1 During the manufacturing process, the metal surface of the part has a certain microscopic unevenness, and the shaft hole may have a shape error. 2 In the initial stage of hydraulic motor operation, the parts move relatively high speed, and the friction pair will produce slight wear. At this time, the parts are in the initial wear stage. 2. After a period of running in the normal wear stage, a new roughness with higher precision grade is generated between the friction pairs, and the initial wear rate of the machine is slowed down, and a relatively long stable use phase is entered. 3. During the abnormal wear phase, the metal material reaches the rated life of the fatigue cycle, and a fatigue layer will be generated on the metal surface. The fatigue layer will cause the particle surface to fall off in the high temperature and high pressure state. Therefore, the wear is sharply accelerated, and finally the part is invalidated. . The length of the three stages of the hydraulic motor depends mainly on the cleanliness of the hydraulic fluid used. Another decisive factor affecting the life of a hydraulic motor is the service life of the motor bearing. 1. When the motor load rotates, there will be many peeling metal particles in the working chamber accumulated in the body due to the inability to discharge the shell. The deposited metal particles are mixed with the hydraulic oil and rotate in the housing with the rotation of the motor shaft and the cylinder. Flow drift, which will cause increased wear on the motor bearings. 2. After the bearing wears to a certain extent, the clearance increases and the rotation accuracy decreases. When the relative motion accuracy of the cylinder and the distribution plate cannot be guaranteed, the static pressure balance between the friction pairs of the motor will be destroyed, which will accelerate the wear. ----- Responsible Editor: Dalan Oil Pump Motor 02- Purchasing Consultant Copyright http:/(Dalan Motor) Reprint, please indicate the source http://news.chinawj.com.cn