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一、前言 传动箱中间齿轮在台架试验中发生断裂,该齿轮在坦克野外试车行驶了六千公里,并进行了多项特种试验。试车后曾做了分解鉴定,传动箱仅打开箱盖进行外观检验,各齿轮齿面光滑完好,末拆卸全面检查。此后该传动箱装在台架上外加负载(相当于730马力)试验,运转十二小时(相当于六百公里)后损坏。齿轮损坏前发现传动有噪音,添
I. INTRODUCTION The middle gear of the gearbox has been broken in the bench test. The gear has been tested in the field of the tank for 6,000 kilometers and has carried out a number of special tests. After the test had done a decomposition of identification, the gearbox only open the lid for the appearance of inspection, the gear tooth surface smooth and intact, the final disassembly comprehensive inspection. The gearbox was then loaded on the bench with an additional load (equivalent to 730 hp) and was damaged after 12 hours of operation (equivalent to 600 km). Before the gear is damaged, it is found that there is no noise in the transmission