Wear of Connecting Rod Journal of Cummins Generator Set Crankshaft

There are many shaft parts of Cummins generator set, such as crankshaft, camshaft, transmission shaft, etc. The common damage forms of shaft parts are bending, wear and fracture. All shafts of the bending test axle parts must be consistent with their rotating shafts, otherwise the shafts will be bent and deformed. When checking the curvature of the shaft of the Cummins generator set, the contact point of the differential table is usually used to fix the central part of the shaft. When rotating the shaft, the difference between the maximum reading and the minimum reading indicated by the length pointer of the differential table.

For some simpler shaped shafts, they can be directly rolled on a flat plate. During rolling, changes in light leakage between the shaft and the flat plate can be observed, and the degree of bending of the parts can be determined based on this. The shaft parts of Cummins generator set for wear test have complex shapes, some are crankshaft, some are tubular, some are connecting rods, and the wear test parts are journals. It is used to measure the wear of crankshaft connecting rod journal of Cummins generator set. Half of the maximum difference measured on the same cross section is roundness, and half of the maximum difference measured on the same longitudinal section is cylindricity.

When one end or both ends of the journal have shoulder surfaces bearing thrust, the length and radius of the journal of the Cummins generator set should also be checked. In the repair unit of a single model and large production scale, various special boundary gauges can be used to measure the journal wear, so as to improve the inspection efficiency of the Cummins generator set. The fracture test can be conducted through the inspection and detection of the Cummins generator set.

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