随着装载机吨位的增加,转向阻力矩增加,流量放大型动力转向系统在新机型上应用得较多。流量放大阀的控制有液控和机械两种方式。前者如卡特彼勒公司的966D型装载机,后者如特雷克斯公司的85C、90C型装载机。 85C、9OC型装载机的转向系统属机械控制的分离式流量放大转向系统,伺服系统(先导系统)和执行系统分开布置,伺服系统对执行系统的控制通过机械拉杆来完成。该系统转向角度大;由于两系统分开,系统压力可提高,以减小沿程阻力损失,同时也便于选择性 As the tonnage of loaders increases, the steering torque increases, and the flow amplification power steering system is applied more on new models. Flow control valve amplification and mechanical control of two ways. The former, such as Caterpillar’s 966D-type loader, the latter such as Terex’s 85C, 90C-type loaders. 85C, 9OC loader steering system is a mechanical control of the separate flow amplification steering system, the servo system (pilot system) and the implementation of the system are arranged separately, the servo system for the implementation of the control system through the mechanical lever to complete. The steering angle of this system is big; Because the two systems are separated, the system pressure can be increased, so as to reduce the resistance loss along the route, and also to facilitate the selectivity