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压力控制基本回路 1.安全、调压回路液压传动的一个很大的优点便是超载保护安全可靠,因而机器设备和工具不易损坏.并且实现超载保护的手段十分简单,只要在系统中设置一个溢流阀或安全阀来限制液压系统的最大工作压力,当系统工作压力超过阀的调定值时,阀打开进行溢流,阻止了压力继续升高.调整溢流阀的手柄还可以改变阀的调定值,亦即改变系统的最大工作压力,因此当机器在轻负荷下工作时也能有效地保证模具的安全. 从理论上讲,一个溢流阀既可用于安全又可实现调压,但是在实践中,为了防止调整失误和保险起见,常把安全和调压分开.安全阀
Pressure control of the basic circuit 1. Safety, pressure regulator circuit hydraulic transmission is a great advantage of overloading protection is safe and reliable, so the machinery and equipment and tools are not easily damaged and the means to achieve overload protection is very simple, as long as the system set up an overflow Flow valve or safety valve to limit the maximum working pressure of the hydraulic system, when the working pressure of the system exceeds the set value of the valve, the valve is opened to overflow, preventing the pressure from rising further. Adjusting the handle of the relief valve can also change the valve Set value, that is, to change the maximum working pressure of the system, so when the machine is working under light load can effectively ensure the safety of the mold.In theory, a relief valve can be used for both safety and voltage regulation, However, in practice, in order to prevent adjustment errors and insurance, safety and pressure control are often separated.