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挖掘机怎样进行检查维护

日期:2018-03-23   来源:/
挖掘机上应用液压传动的系统主要有先导控制液压系统、回转液压系统、行走液压系统、工作装置液压系统等,它具有结构紧凑、动作灵活、运行平稳、操作方便等优点,液压系统是以液压油作为传递动力的介质,会因为内部元器件磨损后产生泄漏,同时伴随着出现过热,工作无力等故障。
Application of hydraulic excavator system mainly pilot control hydraulic system, hydraulic system, hydraulic system, hydraulic system, it has the advantages of compact structure, flexible operation, stable operation, convenient operation, the hydraulic system is a hydraulic oil as power transmission medium, because the internal components wear after leakage, accompanied by overheating, inability to work breakdown.
液压传动故障的出现具有突发性、隐蔽性,而且涉及的元器件比较多,给故障诊断和排除带来一定的困难,因此在维修液压系统时,必须弄懂其工作原理和正确分析故障原因的基础上才能保证维修的质量。

Failure of hydraulic transmission is sudden and concealment, but also relates to the components more, for troubleshooting is difficult, so the maintenance of the hydraulic system, the foundation must understand its working principle and fault analysis of the right to ensure maintenance quality.

液压系统的故障主要表现在两个方面:大臂举升缓慢无力;回转缓慢无力。引起两个故障的主要原因是工作油压偏低,而造成压力偏低的主要原因是堵塞和泄漏。油路畅通、密封好是系统正常工作的保证,堵塞和泄漏是最常见的液压传动故障,因此检查液压传动故障一般从液压油路方面开始检查。
The failure of the hydraulic system is mainly in two aspects: the slow lifting of the large arm and the slow and feeble rotation. The main cause of the two failures is that the oil pressure is low, and the main cause of the low pressure is the clogging and leakage. The smooth and sealed oil well is a guarantee for the normal operation of the system. Blockage and leakage are the most common hydraulic transmission failures. Therefore, checking hydraulic transmission failures generally starts with hydraulic oil circuits.
加长臂挖掘机从表面现象看,多为密封件失效、损坏、挤出或密封表面被拉伤等造成。主要原因有:油液污染、密封表面粗糙度不当、密封沟槽不合格,管接头松动、配合件间隙增大、油温过高、密封圈变质或装配不良等。泄漏分为内泄漏和外泄漏,通常故障主要由于内泄漏引起。
In view of the surface phenomenon, the long arm excavator is mostly caused by the failure, damage, extrusion or sealing surface of the seal. The main reasons are: oil contamination, improper sealing surface roughness, unqualified sealing grooves, loosening of pipe joints, enlargement of mating parts, excessive oil temperature, deterioration of sealing rings or improper assembly. Leakage is divided into internal leakage and external leakage, usually due to internal leakage.
本文由加长臂挖掘机友情奉献,更多有关的知识请点击:我们将用最先进的技术,最真诚的态度,为您提供最为全面的服务。我们将会陆续向大家奉献,敬请期待。
In this paper, we will give you more inion about the long arm excavator's friendship, please click: , we will provide you with the most advanced technology and the most sincere attitude to provide you with the most comprehensive service. We will continue to contribute to you and look forward to it.

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