农业机械越来越普遍地装设液压系统,其液压油泵多采用 CB 型齿轮泵。齿轮油泵最常见的故障是各密封胶圈的密封作用失效,引起整个液压系统工作失调。为便于分析故障,在此谈一下 CB 系列齿轮油泵各密封胶圈的作用。密封胶圈的作用是防止液压油从两配合面间泄漏或从外部混入杂物。简言之,就是防止内漏、外漏及杂物混入。 Agricultural machinery more and more commonly installed hydraulic system, the hydraulic pump and more use of CB gear pump. Gear pump is the most common failure of the seal ring sealing failure, causing the entire hydraulic system work disorders. In order to facilitate the analysis of failure, here to talk about the CB series gear pump seal ring role. The role of the sealing ring is to prevent hydraulic oil from leaking between the two mating surfaces or from the outside mixed with debris. In short, is to prevent internal leakage, leakage and debris mixed.