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从工程机械液压缸的使用和拆卸过程中发现,导向套的损坏为常见故障。特别是贵阳矿山机械厂生产的W4-60C挖掘机和成都工程机械厂生产的ZL-30B装载机的动臂和转斗缸,经常出现O形圈6和卡键5(图a)之间的环岸断裂的现象。
From the construction machinery hydraulic cylinder use and disassembly process found that the guide sleeve damage is a common failure. Especially, the W4-60C excavator produced by Guiyang Mining Machinery Factory and the boom and bucket cylinder of the ZL-30B loader manufactured by Chengdu Construction Machinery Factory often appear between the O-ring 6 and the card key 5 (Fig. A) The phenomenon of bankruptcy.