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TY22O型推土机是引进日本小松技术生产的液力机械式推土机,其变速系统采用工作和操作性能良好的动力换档行星轮变速箱机构,前段时间,我单位一台TY220推土机变速系统出现故障,在处理过程中走了一些弯路,现总结出来供同行们参考。 故障现象:①发动机工作正常,挂一档负荷作业时行走系统突然出现无力现象,而其余各档负荷作业均正常。②清洗变速系统粗滤器(磁铁滤)时发现有少量2.0mm×2.0mm合金碎片和粉末。据操作人员反映:近一个月以来,推土机挂一档作业行走系统有轻微无力现象。 综合上述故障现象,我们判断变速箱可能出了问题。
The TY22O bulldozer is a hydraulic mechanical bulldozer produced with the introduction of Komatsu technology from Japan. Its transmission system employs a power shifting planetary gearbox mechanism with good working and operating performance. Some time ago, the transmission system of a TY220 bulldozer in our company failed. Some detours have been taken during the processing and are now summed up for reference by counterparts. Symptoms: 1 The engine is working normally, and the walking system suddenly appears ineffective when hanging a load operation, while the rest of the load operations are normal. 2 A small amount of 2.0mm x 2.0mm alloy chips and powder was found while cleaning the roughing filter (magnet filter) of the transmission system. According to the operator’s report, in the past month, bulldozers had a slight weakness in the first-home operation system. Based on the above-mentioned failure phenomena, we judge that the gearbox may have a problem.