[Asia pump network] 2CY gear pump and maintenance of the various components of the method? 1, the drive shaft and bush wear Repair gear pump drive shaft and bush wear, with the gap increases, will certainly affect the pump oil. In this case, Park Taibang repair axles or bushing can be used to restore the 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. Follower shaft wear and tear to wear and tear to eliminate traces of reaming method, and then press the hole reaming the actual size of the preparation of the driven shaft. 4, the pump chamber cavity repair Pump chamber cavity wear, the general cavity set method to repair, about enlarging the cavity after the set with cast iron or steel bushings. Inlaid, the lining of the cavity. 5, the repair of the valve seat: pressure limiting valve has two kinds of ball valve and plunger valve. 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. 6, the repair of the pump cover Plane repair: If the working surface of the pump cover less wear and tear, gear pump manual grinding method to eliminate wear marks, that is, put a little valve sand on the platform or thick glass, and then put the pump cover on it Grinding until wear marks disappear, the work surface 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. (Editor: Xiaoxia QQ:) Recommended reading: 2017 exhibition information
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