Marine diesel engine sliding bearing wear monitoring device based on contact potential method
A marine diesel engine, contact potential technology, applied in the direction of mechanical bearing testing, etc., can solve problems such as large alignment, signal interference, etc., to achieve the effect of improving alignment, ensuring safe operation, and creating social benefits
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[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0032] In the normal operation of diesel engine shaft sliding bearings, there is a lubricating oil film between the crankshaft and the bearing bush, which avoids direct contact between the two metals. Usually the oil film thickness of the sliding bearing of a diesel engine is in the range of 0.1-1mm, and because the conductivity of the lubricating oil is low, it can be regarded as an insulator, but there will be micro-convex peaks on the surface of the bearing bush and the crankshaft, and micro-convex peak contact will occur when the working condition is bad , when the micro-convex peaks are in contact, the crankshaft and the bearing bush are considered to be connected, and they are equipotential bodies. Based on this, ...
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