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东方红-75/802型拖拉机正时齿轮打牙已成为常见故障,甚至有个别机车经常打牙,不但影响农业生产,同时还增加了机车的维修成本。为减少正时齿轮打牙故障,作者对此进行分析,供参考。 一、配件质量存在的问题 目前,农机配件市场较为混乱,有些经销部门进货渠道有问题,使配件存在严重质量问题。其表现主要有以下两个方面;其一,材质差铸造缺陷多,从打齿断面发现有的齿轮材质
Dongfanghong -75 / 802 tractor timing gear teething has become a common failure, and even a few locomotives often fight teeth, not only affect agricultural production, but also increased the cost of locomotive maintenance. In order to reduce the timing gear teething failure, the author analyzes this for reference. First, the existence of the problem of quality accessories At present, the agricultural machinery parts market is more chaotic, some distribution channels have problems purchasing parts, accessories serious quality problems. Its performance mainly in the following two aspects: First, the material poor casting defects, found some gears from the tooth surface cross-section