The crankshaft bending deformation is how to test?

The crankshaft bending deformation is how to test?Answer: after bending deformation of the crankshaft, cylinder work surfaces or eccentric wear, connecting rod small copper sleeve and the connecting rod bushing bearing steel overheating and early wear, crank shaw into cone.In overhaul of the compressor, therefore, repairing or should monitor the bending of the crankshaft, to take measures so that early detection that agricultural machinery copper set of cause more damage.Before inspection, need to the crankshaft is swabbed clean first, on the test platform of "V" shape on the shelf, or with a thimble to the crankshaft at the ends of the center hole to the roof on the lathe, then test with a dial indicator.Inspection, will be dial indicator in one or two in the middle of the measuring point on crankshaft main journal, with his hand slowly rotate the crankshaft after a circle, dial indicator on the indicated runout, which bend the runout of crankshaft.But it must be pointed out that the measured cylinder earrings copper set of results, there could be a big error, because it also involves the support in the "V" shape frame between two main journal and a main journal is round things, see if there is influence of crankshaft bending runout of;If there is influence;Also depending on the circumstances and the crankshaft bending to adjust the runout.Main journal is round things among them, dial indicator or available diameter measured crankshaft table.Support in "V" shape on the shelf of the two main journal is round things, can use dial indicator by examining the flywheel in here don't wear, measure is round things, to a certain extent, can represent support in "V" shape on the shelf of the two main journal is round things.Parenthetically, shaft bending refers to the center line of the central axis deviation from the centerline of the theory of and the ratio of the axial length measured.In the repair of production, for specific parts, due to the length of the parts have been identified, so usually refers to the deviation degree.At the same time, considering the convenience of work, in be used actually, bending multi-purpose bending runout.Twice the bending runout for bending.

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