一、概述四川省磨房沟电站的设计水头为400米,机组转速为500转/分,其水轮发电机下导轴承的结构如图1所示。投运初期,日甩油量多达8公斤。其中一部分以油雾形式从挡油圈与主轴间的缝隙中飘出来,然后,在下机架,下挡风罩、水轮机机壳等部件上结露;另一部分则直接从挡油圈内圆处流下来,滴在主轴法兰上,再由离心作用甩出去。为改变这种状况,安装部门与设计制造部门共同商定在瓦上部轴领上钻了八个φ16径向孔,并在箱盖上加了二个 First, an overview of Sichuan Province Moguogou hydropower station head design is 400 meters, the unit speed of 500 rev / min, the structure of the hydroelectric generator guide bearing shown in Figure 1. Put into operation early, the Japanese rejection of oil up to 8 kg. One part of it flows out from the gap between the oil deflector and the spindle in the form of oil mist, and then condenses on the parts of the lower frame, the lower windshield and the turbine casing, and the other part directly flows from the inner circle of the oil deflector Flow down on the spindle flange, and then thrown out by the centrifugal effect. In order to change this situation, the installation department and the design and manufacturing department jointly agreed to drill eight φ16 radial holes in the upper shaft of the tile and add two