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1台Z50G-3型装载机在工作过程中,经常出现铲斗缸导向套漏油故障。经反复检查,我们找到了其结构上存在的缺陷,并对其实施了改进。1.导向套结构铲斗缸导向套结构如图1所示。导向套2安装在铲斗缸缸筒12前端,与活塞杆3配合,具有导向、封油及限制行程等功能。上导向环7、下导向环8及YH型主油封11分别装在导向套2内孔各相应的环槽内,其中YH型主油封11对铲斗缸起主要封油作用,若铲斗缸漏油只能从该油封的a、b唇口处漏出。
1 Z50G-3-type loader in the course of their work, often appear bucket cylinder guide sleeve leakage failure. After repeated inspection, we found its structural defects, and implemented improvements. 1. Guide sleeve structure Bucket cylinder guide sleeve structure shown in Figure 1. The guide sleeve 2 is mounted on the front end of the bucket cylinder 12 and cooperates with the piston rod 3 to guide, seal oil and limit the stroke. The upper guide ring 7, the lower guide ring 8 and the YH type main oil seal 11 are respectively installed in the corresponding ring grooves of the inner hole of the guide sleeve 2, wherein the YH type main oil seal 11 plays a main role of oil seal on the bucket cylinder. If the bucket cylinder Oil leakage can only leak from the a, b lip of the oil seal.