自卸车过载保护原理简介设计自卸车的液压系统时，在手动转阀上设置溢流阀（图１所示）。当系统压力超过规定的压力则溢流阀启开，高压油回油箱，油缸便不再升举了，起到了保护作用。图１为了使驾驶员使用自卸车更方便，另一种过载保护系统如图２所示。图２该保护装置中，... Dump Truck Overload Protection Principle Introduction When designing the hydraulic system of the dump truck, a relief valve is installed on the manual turning valve (Fig. 1). When the system pressure exceeds the prescribed pressure relief valve opens, high pressure oil back to the tank, the cylinder will no longer lifted, played a protective role. Figure 1 in order to make the driver more convenient dump truck, another overload protection system shown in Figure 2. Figure 2 the protection device, ...