渣浆泵双支承轴东部件结构图

图5 -23是润滑脂润滑的多级泵轴承部件结构图，采用圆柱滚子轴承，不承受轴向载荷，允许泵的转子作小量的轴向窜动。是用于输送的液体温度低于100C采用平衡盘平衡轴向力的小型多级泵中。

图5 -24是分段式多级泵中常用的轴承部件结构图，是以润滑油润滑，油环提油，设有冷却水套冷却的结构。它采用圆柱滚子轴承，不承受轴向载荷，允许转子作小量的轴向串动，可用于输送液体温度大于100C、转速较高、功率较大的多级泵中。

图5-25是润滑油润滑，油环提油的多级泵轴部件结构图。左端轴承部件中装有一对角接触向心球轴承，可承受一定的轴向载荷，限制轴向位移。右端装有无档边的圆柱滚子轴承，允许转子轴向伸长，在抽送高温液体时，以补偿泵体与转子间的膨胀差。因此， 这种结构能承受一定的轴向载荷 ，转子不能左右窜动。轴承下都有冷却水套，故这种结构可用于高温泵和中开蜗壳式、大型多级泵中。
    图5-26是润滑脂润滑的双吸泵轴承部件结构图。轴承为深沟球轴承，能承受较小的轴向载荷，轴承体是水平中开的，适用于输送液体温度低于80C、转速低于3000r/min的功率较小的双吸泵中。当功率较大，转速较高时，应采用滑动轴承结构。 渣浆泵

Structural drawing of east part of double support shaft of slurry pump

Figure 5-23 is the structural drawing of the bearing components of the multi-stage pump lubricated by grease. The cylindrical roller bearing is adopted, which does not bear the axial load and allows the rotor of the pump to make a small amount of axial movement. It is used in the small multi-stage pump with the liquid temperature lower than 100C and the balance disk to balance the axial force.

Fig. 5-24 is a structural drawing of bearing components commonly used in segmented multistage pump, which is lubricated by lubricating oil, lifted by oil ring and cooled by cooling water jacket. It adopts cylindrical roller bearing, does not bear the axial load, allows the rotor to make small amount of axial series movement, and can be used in multistage pumps with liquid temperature greater than 100C, high speed and high power.

Fig. 5-25 is the structure diagram of multi-stage pump shaft components lubricated by lubricating oil and lifted by oil ring. A diagonal contact radial ball bearing is installed in the left end bearing part, which can bear certain axial load and limit the axial displacement. The right end is equipped with a cylindrical roller bearing without flange, which allows the axial extension of the rotor. When pumping high-temperature liquid, it can compensate the expansion difference between the pump body and the rotor. Therefore, the structure can bear certain axial load, and the rotor can not move left and right. There are cooling water jacket under the bearing, so this structure can be used in high temperature pump and middle opening volute type, large-scale multistage pump.

Fig. 5-26 is the structure diagram of bearing components of double suction pump lubricated by grease. The bearing is a deep groove ball bearing, which can bear a small axial load. The bearing body is horizontally split. It is suitable for the double suction pump with low power when the liquid temperature is lower than 80C and the rotating speed is lower than 3000r / min. When the power is large and the speed is high, the sliding bearing structure should be used Slurry pump