推土机(带松土器)液压控制箱是控制推土和松土装置的液压阀组,它的性能好坏将直接影响推土机的整机工作性能。对它进行装机前的整体试验是十分必要的,而液压控制箱的试验不同于一般阀的试验,现就T140推土机液压控制箱的性能试验进行分析。1 试验方法液压控制箱包括推土换向阀、松土换向阀、安全阀、过载阀及单向吸入阀,其作用各不相同,装配总成如图1。 Bulldozers (with ripper) Hydraulic control box is to control the bulldozers and ripper hydraulic valve group, its performance will directly affect the bulldozer’s overall performance. The whole test before it is installed is very necessary, and the hydraulic control box test is different from the general valve test, now T140 bulldozer hydraulic control box performance test analysis. 1 Test Methods Hydraulic control box, including earth turning valve, loose earth valve, safety valve, overload valve and one-way suction valve, its role varies, assembly assembly shown in Figure 1.