Agricultural Machinery Parts Three-Awareness State Identification Method

Nowadays, the use of agricultural machinery in rural areas is relatively common. Various types of failures occur at work. In normal maintenance, although the instruments and instruments are widely used to identify the technical status of agricultural machinery parts, the “three-in-one” identification based on sight, hearing, and touch is still very practical and convenient. Visual assessment can identify wear on the exterior parts and deterioration of the parts surface. Such as cracks in the cylinder block, cylinder head, gear and the bearing surface of the flow of fatigue, the injector, exhaust valve, after the serious damage appeared annealing blue or pitting, clutch and brake friction material wear and burn, gear pair The bite marks, the degree of light leakage between the piston and cylinder liner, etc. Auditory identification auditory identification can be tapped with a small hammer to gently check the metal parts of the inspection site, from the sound issued to determine whether the internal cracks, the connection is tight, generally tight parts intact hair between the crisp, defective hair between the voice dumb. This method can be used to identify cracks in the crankshaft, sidebars, bearing alloys and the body, and whether rivet connections are secure. In addition, the same sound can be detected from the running gear group to roughly determine the meshing condition. The tactile identification method tactile appraisal can be shaken by hand, and the gap size can be judged by sensation, and it is not necessary to measure with a measuring device. Such as the gap between the valve stem and the valve guide, the radial and axial clearance of the flow bearing, etc. Source: Heilongjiang Science and Technology News

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