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一提起液压系统,人们就自然地想到了液压系统的清洁度,从压路机的生产和用户对压路机使用的信息反馈,出现的故障主要是由于液压系统的污染比较严重。从国内压路机系列产品发展情况看也是这样。在振动压路机的行走系统中,采用斜盘式轴向柱塞变量泵和马达组成的静压传动,适合压路机的实际工况,结构比较简单,操纵方便,具有先进水平。但是由于该系统对液压油的污染比较敏感,一般认为国内解决不了这套系统要求的液压油清洁度,因而不轻易采用。压路机液压系统的清洁度问题,已经成为阻碍压路机产品系列发展的主要问题,也
When the hydraulic system is introduced, people naturally think of the cleanliness of the hydraulic system. The feedback from the production of the roller and the user’s information about the use of the roller is mainly due to the serious pollution of the hydraulic system. This is also true from the development of domestic roller series products. In the walking system of the vibratory roller, a static pressure drive composed of a swash plate type axial piston variable displacement pump and a motor is adopted, which is suitable for the actual working conditions of the roller, and has a simple structure, convenient operation, and an advanced level. However, due to the sensitivity of the system to the contamination of hydraulic oil, it is generally believed that the degree of cleanliness of the hydraulic oil required by this system cannot be solved in the country and therefore it is not easily adopted. The problem of the cleanliness of the hydraulic system of road rollers has become a major problem that hinders the development of the product line of rollers.