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我矿用于抽吸铁精矿滤饼水分的SZB水环式真空泵,在运行中常常发生水轮在泵内轴向窜动,与端盖摩擦,严重影响其正常运行。为了解决这一问题,我们对水轮轴及水轮进行了改进。经几年来的使用,效果良好,未发现上述问题。 (一)水轮产生轴向窜动的原因为了解决水轮产生轴向窜动问题,通过剖析,认为水轮产生轴向窜动有如下原因。 1.水轮两端轴孔尺寸一样。SZB水环式真空泵水轮两端轴孔尺寸均为φ90毫米,在装配中,轴的轴颈与水轮轴孔压合时,先压进的轴颈尺寸被压小,相应的轴孔尺寸胀大,当被压小的轴颈进入水
I mine for the suction of iron concentrate filter cake water ring SZB water ring vacuum pump, the pump often occurs in the run-in axial movement of the pump, and the end cover friction, seriously affecting its normal operation. In order to solve this problem, we improved the water wheel shaft and water wheel. After several years of use, the effect is good, did not find the above problems. (A) The causes of axial movement of the water wheel In order to solve the problem of axial movement of the water wheel, through analysis, it is considered that the axial movement of the water wheel has the following reasons. 1. Both ends of the wheel shaft hole the same size. SZB water ring vacuum pump water pump shaft at both ends of the shaft size is φ90 mm, in the assembly, the shaft pinch and water wheel shaft hole pressure, the first press into the journal size is small, the corresponding shaft hole size expansion Large, when the pinch is pressed into the water