What is the crankshaft bending deformation test? A: crankshaft bending deformation, the work surface of the cylinder that occurs partial grinding, connecting rod small head copper sleeve and connecting rod lining bearing steel sleeve overheating and early wear, grinding crank crank grinding. Therefore, the compressor overhaul, or repair the crankshaft bending should be checked in order to early detection and take appropriate measures to avoid more damage caused by agricultural machinery copper sleeve. Before the inspection, the crankshaft should be scrubbed clean, placed on the test platform "V" -shaped frame, or with a thimble to withstand the crankshaft at both ends of the center hole on the top of the lathe, and then use the dial indicator for inspection. Inspection, the dial indicator in the middle of the crankshaft at the measurement of one or two main journal, hand crank slowly crank a circle, the dial indicator on the pendulum difference is the bending of the crankshaft pendulum. However, it must be noted that the measured results of the cylinder sleeve copper cylinder may also be a lot of error, because it also involves the support in the "V" on the two main journals and the middle of the main journal of a round out of the situation, To see if there is any impact on the bending of the crankshaft pendulum; if there is impact; but also according to the situation and then adjust the crankshaft bending pendulum. The middle of the main journal of the round situation can be used outside diameter dial indicator or crankshaft table measured. Support the "V" -shaped two main journal of the round out of the situation, can be used by checking the dial gauge flywheel where no wear, measured out of round situation, to a certain extent, can support the "V" 2. The two main journals on the shaped frame out of round. Incidentally, the degree of curvature of the shaft refers to the ratio of the distance from the center line of the center of the center line of the shaft to the measured axial length. In the repair of production, for specific parts, because the length of the part has been identified, so usually refers to the degree of offset. At the same time, taking into account the convenience in the work, in actual use, the bending degree with more than bending to represent the pendulum. Bend Pendulum is twice the curvature.
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