减速箱漏油 ,已成为煤矿设备的一个技术难题。我们在检查分析中发现 ,减速箱静结合面漏油是由于结合面的加工精度和表面粗糙度不高 ;在长期使用过程中产生应力变形。装配时 ,出现较大间隙 ,最大间隙达1 5 ～ 1 8ｍｍ ,装配后 ,压力集中在间隙小的部位 ,间隙大的部位压力很小 , Gearbox leakage has become a technical problem of coal mine equipment. In the inspection and analysis, we found that the gearbox static surface leakage is due to the combination of surface machining accuracy and surface roughness is not high; in the long-term use of the process of stress and deformation. Assembly, there is a large gap, the maximum gap of 15 ~ 18mm, after assembly, the pressure concentrated in the small parts of the gap, the pressure of a large part of the gap is small,