The temperature rise is almost unaffected by the load. Therefore, the no-load running-in test can completely test the installation condition of the bearing, the lubrication effect of the gear, and the temperature rise of the lubricating oil. Under the same speed, the reverse temperature rise is lower than the forward temperature rise, and the time to reach the limit temperature is much shorter than the reverse time. This point is higher than the transmission efficiency at the same speed and the same load. The transmission efficiency at the time of the transition is consistent.
During the whole process of the dynamic and static seal loading test of the test gearbox, no oil leakage, oil dripping or oil leakage occurred in the vacuum pump and static seal of Shandong, and the outer surface of the gear box was smooth and oil-free. The ventilator has no leakage. Static strength test With the development of locomotives to high speed, more and more gearbox housings are designed and manufactured using aluminum alloy. If it meets the requirements of light weight, high safety and high strength, it must be static strength. test. In the case of static load, the strain gauge can be attached at the appropriate position to measure the stress of the test gearbox.
Based on the measured test data, the test gearbox can be optimized to shorten the development cycle. In the experimental study, the finite element numerical analysis method was firstly used to carry out the static strength analysis of the gear box using the finite element analysis program ANSYS. The purpose was to analyze the maximum stress area of ​​the box under a given load.
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