ã€Asia Pump Network News】 Gear pump in use for some time, the phenomenon of wear is hard to avoid. However, we can take a variety of maintenance methods to slow down the gear pump wear and tear, to extend the service life of gear pumps. The following is the maintenance of the various parts of the gear pump: Maintenance of gear pump components 1, the drive shaft and bushing wear repair gear pump drive shaft and bush wear, with the gap increases, will certainly affect the pump oil the amount. In this case, you can repair the drive shaft or bushing method to restore its normal with the gap. If the drive shaft wear slightly, simply press the old bushing and put on the standard size bushing, with the gap can be restored to the allowable range. If the drive shaft and bushing wear serious and serious with excessive clearance, not only to replace the bushing, and the drive shaft also applies chrome or vibration welding method to increase its diameter, and then grinding to the standard size, recovery and bushing With the requirements. 2, the repair of the oil pump housing shell crack repair shell cracks can be cast 508 nickel-copper welding electrode repair. Welds to be close and yuan stomatal, with the flatness of the pump cover with no more than 0.05 mm flatness. 3, drive shaft bushing hole and the wear of the driven shaft hole repair After the drive shaft bushing hole wear, reaming methods can be used to eliminate wear marks, and then with increased to the appropriate size of the bushing. Driven shaft hole wear and tear to reaming method to eliminate wear marks, and then press the hole reaming the actual size of the preparation of the driven shaft 4, pump housing cavity repair cavity pump wear, the general approach to repair the lumen , Is about to enlarging the inner cavity set with cast iron or steel bushings. Inlaid, the cavity enamel 5, the valve seat repair: pressure limiting valve with a ball valve and plunger valve two. Ball seat wear, the ball can be placed on a valve seat, and then gently tap the metal ball, until the ball valve and valve seat so close. If the valve seat is worn seriously, first remove the worn marks by reaming, and then use the method to make it close. Plunger seat wear, you can put a little valve sand grinding until close together. 5, the pump cover repair work plane repair: If the pump cover wear a small plane, manual grinding method to eliminate wear marks, that is, put a little valve on the platform or thick glass plate sand, and then put the pump cover on the ground , Until the wear marks disappear, the work surface is flat so far. When the pump cover working surface wear depth of more than 0.1 mm, should be taken after the turning grinding method to repair. Extended reading: China Construction Water Expo Guangzhou World Expo pump manufacturers ranked Industrial Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline:)
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