Pump industry suppliers to tell you: chemical pump parts assembly steps should be how to do

chemical pump in industrial production, is a common chemical pump, chemical centrifugal pump by commonly: pump casing, impeller, mechanical seal, bearing, coupling and other major parts, sealing ring, of course, the mouth ring is also cannot be ignored, the following chemical pump parts what are required in the process of assembly, assembly steps how to do?

a, cleaning

components must be qualified through inspection, material code conform to the requirements of the drawings, clean surface, the fitting surface with engine oil. Bearing box clean oil resistant enamel coating, natural dry 24 hours, through inspection qualified rear can into the assembly.

2, department and assembly requirements

1, the flat key chemical pump and bearing assembly, may not be directly with the hammer knock, should use a wooden hammer. Copper bar or dedicated assembly tools such as assembly.

2, bearing diameter is r6 and s6 interference fit, to implement the hot charging, the temperature is 80 - 120 ℃

3, stud combined with maternal side with dry oil, should guarantee the length is consistent, tighten evenly.

4, in the process of assembly, to prohibit parts surface, especially the scratches, and sealing surface, so as not to affect the assembly quality.

3, bearing and shaft assembly

bearing heated to 90 ℃ - within the furnace 110 ℃ cooling on the shaft. First installed the bearing gland at the left side of bearing box, and then in load bearing, bearing and shaft components depend on the left bearing gland, measuring the drive end bearing gland and the size of the bearing outer ring end face, CZ water pump in 0. 30 - 0. On a scale of 0-70 mm, the ZA water pump 0. 42 mm gap. Such as ZA pump bearings for matching is used, install and use will tighten nut bearing locking to two bearing outer ring can be relatively slight rotation can obtain ideal clearance.

4 and impeller, pump body, mouth ring assembly

mouth ring and the impeller, pump body assembly, attention should be paid to make the mouth ring around evenly into the impeller and pump body, to minimize the mouth ring shape error. In to tighten the set screw or welding, measuring impeller, mouth ring radial runout and clearance of the two, the measured value should comply with the provisions of the general technical requirements pump assembly, repair parts to super bad.

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