There are five methods for the identification of agricultural machinery parts:
First, the sensory identification method:
Such as parts of cracks, breaks, bending, twisting, corrosion, fatigue, etc., can be visually identified; parts are tightly connected, the part itself is a crack, etc., can be tapped with a small hammer, with the voice of the voicing Audition of the ear; Some parts of the cracks can be smeared with white powder after oil immersion, and then tapped with a small hammer to identify whether the oil ooze out; You can also shake the matching parts by hand, initially identified with the size of the gap.
Second, measuring tool identification method:
Various measuring tools are used to check the fit size, clearance, surface shape and position deviation of parts, which is a more accurate identification method. Commonly used measuring tools include rulers, strip rulers, calipers, gauges, vernier calipers, percent rulers, and dial gauges.
Third, the sample inspection and identification method:
First of all, according to the technical requirements to create a standard model, in the identification, as long as the parts to be identified and the model for comparison, to see whether the deviation is within the allowable range. This method is simple and practical.
Fourth, special equipment inspection and identification method:
Such as the use of magnetic flaw detector to check the internal parts of the cracks or voids; using a hydraulic tester to check the sealing performance of the container; use the spring elasticity tester to check the state of the spring; use a static or dynamic balance test stand to check the balance of the rotating parts.
Fifth, do not dismantle the identification method:
It is the various parts in the assembly conditions, the use of tools or other instruments, measuring the various horizontal or vertical or oblique distance with the nearby parts, or check the sealing, straightness or fit the gap size, to determine the working status of the parts Is it good?
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