Describe the maintenance of gear pump parts wear
2017-06-06
Hunan Jintai Hardware and Machinery Co.,Ltd. introduction The wear of the shaft of the gear pump is mainly due to the abrupt wear between the shaft and the support pin, so that the shaft diameter becomes smaller. If it is subtle wear, you can add a layer of hard chrome to increase the diameter of this part of the axis scale, so that the axis is amended. If the shaft wears tough, it should be 45 steel or 40Cr steel from scratch, shaft rough by the rough, fine car, the bearing parts to heat treatment, hardness HRC60-65, and then by grinding, so that the bearing surface roughness Ra Greater than 0.32μm; roundness and cylindrical degree of tolerance of 0.005mm; with the gear parts by H7 / h6, the surface roughness Ra should not be greater than 0.63μm.
Inside and outside the pump body wear is mainly the oil-absorbing section of the arc-shaped working surface.If there is a slight wear and tear, can be used to repair the use of oil to repair glitches. The pump body is made of cast iron casting blank, the emergence of severe wear and tear should replace the new pieces. If the two faces of the pump gear are modified by grinding, the width of the pump should be changed, and the scale of the gears at both ends of the gear is flat. The two sides of the pump body should reach the technical requirements shown in Fig.
Hunan Jintai Hardware and Machinery Co.,Ltd. is a professional manufacturer on various kind of bearings over 15 years China factory.
We are making all kinds of slide bearings including DU PTFE composit bushing, DX POM composite bushing,bimetal bushing,wrapped bronze bushing, cast sliding bushings and wear plate bearing pad, sintered bronze bushing and sintering parts, ball transfer bearings, etc.
The shapes of bearings can be in sleeve, flanged, spherical, plate, washer, pad, ring, square etc.
Base materials in carbon steel, harden steel, iron, stainless steel, bronze, brass, copper, bronze-steel alloy.Lubricant materials in PTFE, teflon, POM, nylon, plastic, oil, graphite, grease, MoS2, etc.
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