Researching For Fault Diagnosis Of Rolling Bearing For Vehicles

Lift along with the railroad truck soon heavy carry strategic of further implement, the movement safety of the truck faces the bigger pressure, with science, forerunner of technique material to guarantee the railroad conveyance the safety has already become the importance within the railroad science and technology development strategy to constitute the part. The truck rolls over the key parts that the bearings is the railroad truck, it assemble the error margin (wrong medium, unbalance) and circulate various breakdown (order the eclipse, removal, crack, lubricate bad etc.) appear in the process and will produce to pound at to combine tired defection and damage of accelerate the bearings in the usage. Under the condition of high-speed and heavy currently the movement that carry, the bearings breaks down and would develop into the accidents of shaft overheating and shaft breaking quickly. Therefore, we urgent demand applied modern examination technique realization break down to the bearings accurate, automatic examination, break down the bearings card before deliver car.The bearings that this text study breaks down to examine the instrument adoption to pound at the pulse diagraph technique, the frequency chart analysis and gather an analysis to break down to identify the technique etc. the comprehensive examination analysis method, the characteristic vector model that the establishment bearings break down, do an accurate judgment to the usage appearance of the vehicle bearings, solve the spot (row check, the segment fix, stand fix etc.) vehicle at the bearings does not resolve, the low speed work appearance under the bearings breaks down the examination of technique hard nut to crack. Study the bearings parts blemish causes the round to the characteristic and regulations of the structure resonance, establishment mathematics physics model. Study the characteristic signal range with turn soon and carry the relation of the lotus. Study the characteristic signal range and the blemish size under the condition that sum turns certainly soon carry the lotus with sum certainly of to shouldrelate to. In a great deal of usage experiment foundation up, build up the bearings not resolve the technique of the vibration impact signal examination standard, to replace gradually with the bearings resolve and external appearance several check for the basal bearings checks to fix, usage of technique standard. Use on the scene for the convenience, the difference checks for the row, the segment fix and stood to fix to design assistance of since car and drive the device, and the calculator bearings breaks down the signal analysis and data management system. This text pass systematically analytical and research, made sure that the bearings breaks down the examination technique method of examine the instrument, complete related and hard, software and lend support to the design of the device. Break down to the bearings for the examination instrument that verification design of identify the accuracy, we carried on a great deal of spot to experiment, passing the request to the spot the examination of the bearings and the decomposition, examine the instrument and can compare to distinguish a breakdown bearings accurately, basically carried out to design it the beginning needs to be attain in the bearings not to resolve the appearance to break down the diagnosis under the realization, the examination the technique satisfy the spot the usage, having the higher and accurate rate, instrument easy to take, operate in brief, function stability credibility, can carry on the communication conjunction with calculator, carry out the data management and analyze the basic function of etc..