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渣漿泵雙支承軸東部件結構圖

圖5 -23是潤滑脂潤滑的多級泵軸承部件結構圖，采用圓柱滾子軸承，不承受軸向載荷，允許泵的轉子作小量的軸向竄動。是用于輸送的液體溫度低于100C采用平衡盤平衡軸向力的小型多級泵中。

圖5 -24是分段式多級泵中常用的軸承部件結構圖，是以潤滑油潤滑，油環提油，設有冷卻水套冷卻的結構。它采用圓柱滾子軸承，不承受軸向載荷，允許轉子作小量的軸向串動，可用于輸送液體溫度大于100C、轉速較高、功率較大的多級泵中。

圖5-25是潤滑油潤滑，油環提油的多級泵軸部件結構圖。左端軸承部件中裝有一對角接觸向心球軸承，可承受一定的軸向載荷，限制軸向位移。右端裝有無檔邊的圓柱滾子軸承，允許轉子軸向伸長，在抽送高溫液體時，以補償泵體與轉子間的膨脹差。因此， 這種結構能承受一定的軸向載荷 ，轉子不能左右竄動。軸承下都有冷卻水套，故這種結構可用于高溫泵和中開蝸殼式、大型多級泵中。
    圖5-26是潤滑脂潤滑的雙吸泵軸承部件結構圖。軸承為深溝球軸承，能承受較小的軸向載荷，軸承體是水平中開的，適用于輸送液體溫度低于80C、轉速低于3000r/min的功率較小的雙吸泵中。當功率較大，轉速較高時，應采用滑動軸承結構。 渣漿泵

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