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售后服务信息显示,PD140型推土机推土铲提升缸端部漏油的报修较多。维修时,售后服务人员一般在导向套Y形密封圈沟槽内加装密封纸垫。这种维修方法在短期内虽可以起到密封作用,但使用一段时间后,会再次出现漏油现象。为此,我们对该提升缸端部密封结构进行了改进。1.提升缸端部结构改进前,提升缸端部主要由防尘圈1、压紧盖2、衬套3、Y形密封圈4、O形密封圈5、导向套6等组成,如图1所示。导向套6与活塞杆的密封采用2道Y形密封
After-sales service information shows, PD140 bulldozer bulldozer to enhance the end of the cylinder oil spill repair more. Repair, service personnel generally in the guide sleeve Y-ring groove seal paper pad installed. This maintenance method can play a sealing role in the short term, but after using for a period of time, oil leakage will occur again. To this end, we have improved the cylinder head seal structure. 1. Before the improvement of cylinder end structure, the end of lifting cylinder mainly consists of dust-proof ring 1, compression cap 2, bushing 3, Y-ring 4, O-ring 5 and guide sleeve 6, as shown 1 shown. Guide sleeve 6 and piston rod seal with 2 Y-shaped seal