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一台4t叉车在使用过程中,液压泵出油口接头频繁漏油,且拆检极为不便。渗漏的原因主要是,接头未紧固,密封圈规格选用有误,直角接头蝶型垫与接头体径向间隙不合理,液压泵出口倒角尺寸不合理,接头体加工中未清理倒角毛刺等。对上述原因,逐项排查,结果没有发现问题。于是决定进行模拟工况试验,经过7h的试验出现渗漏现象,原因是接头比初装时有轻微的松动,可见整车在运行过程中
A 4t forklift in the use of the process, the hydraulic pump oil outlet joints frequent leaks, and the dismantling is extremely inconvenient. Leakage is mainly due to the joint is not fastened, the ring selection of the wrong specifications, right-angle joint butterfly pad and joint body radial gap is unreasonable, chamfering the size of the hydraulic pump outlet unreasonable, joint body unprocessed chamfer Burr and so on. For the above reasons, one by one investigation, the results found no problem. So decided to simulate the test conditions, after 7h of the test leak phenomenon, because the connector is slightly loose than the initial installation, we can see the vehicle in operation