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建筑机械液压系统的吸油滤油器一般都采用图1所示的安装结构。滤油器座2焊接在油箱3上,滤油器4必须通过油箱检视口在油箱内部与滤油器座2安装在一起。滤油器一般都设在油箱下部,检视口都设置在油箱上端面,加之在油箱内部盲目操作,因此拆装很不方便。设计冻土挖沟机液压系统时,采用了一种如图2所示的安装结构。滤油器座2与油箱3
The oil suction filter of the hydraulic system of a construction machine generally adopts the mounting structure shown in FIG. 1 . The oil filter seat 2 is welded to the fuel tank 3, and the oil filter 4 must be installed inside the fuel tank through the fuel tank inspection port and the oil filter seat 2. Oil filters are generally located in the lower part of the fuel tank. The inspection ports are all located on the top surface of the tank, and the blind operation is performed inside the tank. Therefore, disassembly and assembly are inconvenient. When designing the hydraulic system of the trench soil trencher, a mounting structure as shown in Figure 2 was used. Oil filter holder 2 and fuel tank 3