原文：
一、离心泵的轴向力： 1、轴向力产生的原因：因吸排液口压力不等也使并非xx对称的叶轮两侧所受液体压力不等，从而产生了轴向力。叶轮两侧液体压力假如不计轴的截面积，也不考虑叶轮旋转对压力分布的影响，则作用在叶轮上的力为轮盘受的力和轮盖受的力的差值，转化为计算式就是出口压力和进口压力差值与叶轮轮盖的面积的乘积，因为出口压力始终大于进口压力，所以，当离心泵旋转起来就一定有了一个沿轴并指向入口的力作用在转子上。 2、轴向力产生的问题：不平衡的轴向力会加重止推轴承的工作负荷，对轴承不利，同时轴向力使泵转子向吸入口窜动，造成振动并可能使叶轮口环摩擦使泵体损坏。 二、如何正确xx离心泵的轴向力： 对于多级离心泵来说，一般出口压力远大于入口压力，所以用平衡力来xx轴向力就显得尤其重要，如何xx轴向力呢？ 1、多级泵一般采用的是平衡盘和叶轮的对称安装，单级泵一般是在叶轮上开平衡孔，当然还有在叶轮轮盘上安装平衡叶片的方式来平衡轴向力。 2、虽然我们要求的是xx轴向力，但假如xxxx了也会造成转子在旋转中的不稳定，所以在设计的时候，会设计出30%的量让轴承来抵消，这就是为什么多级泵非驱动端轴承通常都是角接触轴承的原因，因为它可以用来承受很大的轴向力。

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译文：
1, centrifugal axial force: 1, axial force causes: population pressure due to suction fluid is not completely symmetrical range also suffered fluid pressure on both sides of the impeller ranging, giving rise to axial force. If the liquid pressure on both sides of the impeller shaft, excluding cross-sectional area, not considering the impeller rotation on the pressure distribution, the role of the force of the impeller wheel and wheel cover by force by the force of the difference, into a formula Export and import pressure is the pressure difference and the impeller wheel cover an area of the product, because the outlet pressure is always greater than the inlet pressure, so when centrifugal spin up along the axis will definitely have a point to force the entrance of the rotor. 2, axial force generation problem: the unbalanced axial force will increase the work load of the thrust bearing, the bearing negative, while the axial force to the suction pump rotor ran vibration caused by friction may make the impeller Sandy Bay to pump damage. Second, how to properly remove the axial centrifugal force: For the multi-stage centrifugal pump, the general is much larger than the inlet pressure outlet pressure, so use counterweights to eliminate the axial force are particularly important, how to eliminate the axial power? 1, multi-stage pump is generally used symmetrical balance disc and install the impeller, single stage pumps are usually holes in the impeller on the opening balance, of course, install the balance of the impeller wheel on the way to balance the blade axial force. 2, although we ask for is to eliminate the axial force, but if the complete elimination of the rotor can also cause instability in the rotation, so when the design will be designed for bearing capacity of 30% to offset, which is why many Pump non-drive end bearings are angular contact bearings are usually the reason, because it can be used under a lot of axial force.