方坯液压剪高压柱塞泵损坏原因分析

Reason Analyses for the High-pressure Plunger Pump Damage in the Billet Hydraulic Shearing Machine

通过分析液压剪轴向柱塞泵的破损情况,找出了柱塞泵损坏的原因。选用合适的滤芯材质、结构及改进过滤系统,控制液压油污染度低于9NAS级,并将柱塞由实心改为空心结构,使柱塞泵使用寿命提高了2年以上。

In order to find out the reasons of the plunger pump damage, the destroyed situation of the axialplunger pump in the hydraulic shearing machine. By using suitable material and structure of the filter core and improving the filter system, the polluted degree of the hydraulic oil is lower than 9NAS. And the solid structure of plunger is changed into hollow. Then the service life of plunger pump is increased by more than 2 years.