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1.故障现象1台累计工作仅1800h的YTQH259型强夯机,在贵州白腊坎至黔西高速公路第八合同段路基施工时,其支重轮、引导轮、履带链轨磨损严重,导致履带链轨脱轨。如果工作1800h就须更换支重轮、链轨节,显得过于频繁,将造成该机维修成本过大、生产效率下降。根据故障现象,我们结合该机行走装置结构查找出故障原因,并采取了有效改进措施。2.原因分析该机采用履带起重机底盘,其履带可横向伸缩并可拆卸。履带长度为5700mm,两侧履带各
1. Symptom 1 YTQH259 tamping machine with a total work load of only 1800h was seriously worn on the support rollers, guide wheels and track chains during the construction of the eighth contract section between Pak Lakan and Qianxi Expressway in Guizhou Province, resulting in Track chain derailment. If the work 1800h will have to replace the roller, chain link section, appears to be too frequent, it will cause the aircraft maintenance costs are too large, production efficiency decline. According to the fault phenomenon, we combined with the structure of the machine to find out the cause of the malfunction, and take effective measures to improve. 2. Analysis of reasons This machine uses crawler crane chassis, the track can be telescopic and removable lateral. Track length of 5700mm, both sides of the track