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在教科书中将系统的压力、容积和机械三方面的损失称为系统总的能量损失,而在液压设备现场技术管理过程中,由于系统泄漏等原因造成系统工作压力缺失现象时有发生。本文将产生系统能量损失的压力损失和不产生系统能量损失的系统压力缺失称为系统压力缺损。压力缺损是影响无轨设备正常运行的主要因素,由液压系统压力缺损造成的没备故障占没备总故障的80%以上。因此,如何正确分析液压系统压力缺损的原因,掌握其规律,并找出减少和预防压力缺损的方法,就成为了无轨设备现场管理工作的一项重要内容。
The loss of system pressure, volume and machinery in the textbook is called the total energy loss of the system. In the process of technical management of the hydraulic equipment on-site, the lack of pressure on the system occurs occasionally due to system leakage and other reasons. In this paper, the pressure loss that causes system energy loss and the system pressure loss that does not produce system energy loss are called system pressure defects. Pressure loss is the main factor that affects the normal operation of the trackless equipment. The failure caused by the pressure loss in the hydraulic system accounts for more than 80% of the total failure. Therefore, how to correctly analyze the causes of hydraulic system pressure defects, master their laws, and find ways to reduce and prevent pressure defects has become an important part of on-site management of trackless equipment.