伞式机组导轴瓦间隙的确定,就是以水导为基准,移动上导瓦,使与水导瓦同心。水导瓦中心是根据机组中心测定成果而选择的最佳位置。主要是接近固定止漏环中心,或与其重合。水导瓦保证水导处的旋转中心。把主轴限定在导轴瓦间隙的范围内,从而保障机组所有的转动部件均能绕着预先选 Umbrella unit guide bush clearance to determine, is based on the water guide, move the guide tile, so that the concentric water guide tile. Water guide tile center is based on the determination of the results of the crew center and choose the best location. Mainly close to the fixed stop leak ring center, or coincide with it. Water guide tile ensures the center of rotation of the water guide. The main shaft is limited in the range of guide bush gap, so as to ensure that all the rotating parts of the unit can be preselected