黑龙江垦区使用的农业机器广泛地应用了液压技术,特别是近几年,从国外引进了大量的先进农业机器。这些农业机器应用液压技术更普遍,而且液压系统的组成也较复杂,技术水平也越来越高。液压元件同任何机器工作部件一样,随着使用时间的增长,必然产生磨损、损坏、老化等变化,直至报废。由于多种原因造成 Agricultural machinery used in Heilongjiang reclamation area has widely used hydraulic technology, especially in recent years, imported a large number of advanced agricultural machinery from abroad. These agricultural machines are more commonly used hydraulics, and the hydraulic system is more complex and technically advanced. Hydraulic components, like any machine working parts, are subject to wear, damage, aging and other changes as they age, until they are discarded. For a variety of reasons