reciprocating compressor
Thread Content
Ask for help. If the bore diameter of a reciprocating compressor exceeds the standard, what is the general value of the piston rod's runout?
Is the first sentence about piston clearance or dead center clearance? This value should be optimal based on the manufacturer's calculations. After that, the piston skirt or piston rings can be replaced. The jump value of the piston rod is generally <0.07mm. Notice: During inspection, multi-point inspection is performed to prevent shaft bending from being discovered.
Generally, you can refer to SHS 01020-2004 Piston Compressor Maintenance and Inspection Regulations, which have relatively clear requirements for the cylindricity tolerance, surface roughness, and boring volume of the cylinder diameter. There are also data parameters for the surface roughness, straightness, cylindricity tolerance, and runout of the piston rod. The excess tolerance of the cylinder diameter is related to its inner diameter, and the piston rod runout value is generally 0.10mm/m (measured by turning and close to the pressure packing).
This post was last edited by xl19870919 on 2017-1-16 20:55 During maintenance, it is generally required to check the radial clearance between the piston and the cylinder, the cylindricity, roundness, roughness, etc. of the cylinder. I have never seen anything about the runout value of the piston rod. During maintenance, measure each data against the maintenance record. As long as the obtained value is within the standard range, you can ensure that the runout value of the piston rod is within the standard range. Maybe our maintenance records are different.