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东方红75型拖拉机二轴齿轮,又称中央传动齿轮,是联接变速箱和后桥的传动齿轮,由于工作时所受扭力很大,这就要求该齿轮要有足够的强度和耐磨性。在齿轮制造过程中,热处理淬火的质量是保证齿轮具有足够强度和耐磨性的重要条件,过去二轴齿轮淬火是靠人工徒手在盐浴炉中一次三个加热油淬,由于时间控制不准,质量不稳定,且劳动强度大,作业条件不好。针对以上情况,我们在黑龙江工学院的大力支持协助下,自行设计, 自行创造了二轴环形淬火生产线。经过两年的生产实践,证明这条环形
Dongfanghong 75-type tractor two-axis gear, also known as the central transmission gear, transmission gear and rear axle transmission gear, due to the torque suffered by the work, which requires the gear to have sufficient strength and wear resistance. In the gear manufacturing process, the quality of heat treatment is to ensure that the gear has sufficient strength and wear resistance of an important condition, the past two-axis gear quenching is manually by hand in a salt bath furnace three heating oil quenching, because of the time control is not allowed , The quality is unstable, and the labor intensity is big, the working condition is not good. In view of the above situation, we have the strong support of Heilongjiang Institute of Technology to help design and create their own two-axis ring quenching production line. After two years of production practice, this ring proved