Yuken piston pump is an important device of hydraulic system. It has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment. It is widely used in high pressure, large flow and flow adjustment. In daily use, it should be maintained in a timely manner to make it work best.
The Yuken piston pump with oil pump is used. After 3000 hours, the operator needs to check the Yuken piston pump 1-2 times a day to check whether the sound of the hydraulic pump is normal. If the speed of the hydraulic cylinder is found to be degraded or boring, the charge pump should be disassembled to check whether there is any scratch on the edge of the impeller, and whether the clearance of the internal gear pump is too large. For self-priming Yuken piston pumps, the oil in the hydraulic tank should not be lower than the lower limit of the oil mark, and a sufficient amount of hydraulic oil should be maintained. The higher the cleanliness of the hydraulic fluid, the longer the service life of the hydraulic pump.
The most important part of the Yuken piston pump is the bearing. If there is clearance in the bearing, the normal clearance of the three pairs of friction pairs inside the hydraulic pump cannot be guaranteed, and the thickness of the hydrostatic bearing oil film of each friction pair is also destroyed, and the Yuken piston pump is lowered. The service life of the bearing. According to the information provided by the hydraulic pump manufacturer, the average service life of the bearing is 10000h. If this value is exceeded, a new port needs to be replaced. The disassembled bearing can't detect the clearance of the bearing without professional testing equipment. It can only be visually tested. If it is found that the roller surface has scratches or discoloration, it must be replaced.
When replacing the bearing, pay attention to the original letter and type of the original bearing. Yuken piston pump bearings mostly use large load capacity bearings. It is best to buy the original manufacturer, the original specification of the product. If you change another brand, you should consult the bearing. The experienced personnel check the table for the purpose of maintaining the accuracy class and load capacity of the bearing.
The length of Yuken piston pump life is related to the usual maintenance, the quantity and quality of hydraulic oil, and the cleanliness of the oil. Avoiding the particles in the oil to cause wear on the Yuken piston pump friction pair is also an effective way to extend the life of the Yuken piston pump. Replace parts in repairs should use original parts as much as possible. These parts are sometimes more expensive than other counterfeit parts, but the quality and stability are better. If you buy cheap counterfeit parts, it seems to save money in the short term. However, this has brought hidden dangers and may also cause greater harm to the use of the Yuken piston pump.
The distribution plate has two forms: plane distribution and spherical distribution. The friction pair of the spherical surface distribution is repaired by grinding means when the scratch surface of the cylinder body is relatively shallow; when the groove of the distribution surface of the cylinder body is deep, the surface should be filled with the surface engineering technique before grinding. Do not blindly grind to prevent the copper layer from becoming thinner or leaking out of the steel base.
The above is the daily maintenance measures of the Yuken piston pump. Reasonable and effective maintenance is the prerequisite for prolonging its service life and one of the means to improve the production efficiency of the enterprise.