水泥自上料搅拌车液压系统压力调整不当，造成系统发热在水泥自上料搅拌车液压系统中，由于性能要求，系统中往往设有阀、溢流阀和顺序阀等。

Improper pressure adjustment of the hydraulic system of the cement self-feeding mixer truck causes the system to heat. In the hydraulic system of the cement self-feeding mixer truck, due to performance requirements, the system is often equipped with safety valves, overflow valves and sequence valves.

若阀的压力调的过低，阀将频繁开启，产生溢流损失，造成系统发热;若压力调整过高，又会使系统内泄漏增加，使系统发热，因此，应按液压系统的负载要求，正确计算和调整阀和压力值，从而保证系统在规定的压力范围内工作。

If the pressure of the safety valve is too low, the safety valve will open frequently, resulting in overflow loss and system heating; If the pressure is adjusted too high, the leakage in the system will increase and the system will heat up. Therefore, the safety valve and pressure value should be correctly calculated and adjusted according to the load requirements of the hydraulic system to ensure that the system works within the specified pressure range.

当搅拌车送系统主回路为闭式系统时，搅拌车送系统中必须设热交换回路，热交换回路中溢流阀的设定压力应引起重视，设定压力过低，会使搅拌车送液压缸换向冲击增加，设定压力过高，会使溢流损失过大，系统温升过高。

When the main circuit of the mixing truck delivery system is a closed system, a heat exchange circuit must be set in the mixing truck delivery system. The set pressure of the overflow valve in the heat exchange circuit should be paid attention to. If the set pressure is too low, the reversing impact of the mixing truck delivery hydraulic cylinder will increase. If the set pressure is too high, the overflow loss will be too large, and the system temperature rise will be too high.

因此，应合理确定热交换回路溢流阀的调整压力值，一般该溢流阀的调整值为(1——115)MPa，搅拌车送系统补油回路的工作压力为215MPa。当水泥自上料搅拌车液压系统中设置顺序阀时，一定要了解顺序阀的工作特点，正确调整顺序阀的工作压力。

Therefore, the adjusted pressure value of the overflow valve of the heat exchange circuit should be reasonably determined. Generally, the adjusted value of the overflow valve is (1-115) MPa, and the working pressure of the oil make-up circuit of the mixing truck delivery system is 215 MPa. When the sequence valve is set in the hydraulic system of the cement self-feeding mixer, it is necessary to understand the working characteristics of the sequence valve and correctly adjust the working pressure of the sequence valve.

如果内控式顺序阀的调整压力过高，当工作液压缸的工作压力低于其调整压力时，顺序阀阀口存在压力损失，引起温升，造成系统发热，合理确定内控式顺序阀的设定压力，可使工作缸的工作压力高于顺序阀的开启压力，顺序阀工作时，阀口将全开，阀口基本无压力损失，从而避免了由于顺序阀设定压力不当而造成的系统发热。

If the adjusting pressure of the internal control sequence valve is too high, when the working pressure of the working hydraulic cylinder is lower than its adjusting pressure, there will be pressure loss at the valve port of the sequence valve, which will cause temperature rise and system heating. Reasonable determination of the set pressure of the internal control sequence valve can make the working pressure of the working cylinder higher than the opening pressure of the sequence valve. When the sequence valve is working, the valve port will be fully open, and the valve port will basically have no pressure loss, Thus, the system heating caused by improper setting pressure of sequence valve is avoided.

搅拌车液压系统压力调整不当的后果以及如何就讲解完毕了，您对此有怎样的了解可以随时来我们网站http://www.sdzkjf.cn留言交流！

The consequences of improper pressure adjustment of the hydraulic system of the mixing truck and how to solve them are explained. You can come to our website at any time if you have any understanding http://www.sdzkjf.cn Message exchange!