渣浆泵的轴承、 轴承部件的选择与使用
    泵的轴承是支承泵转子旋转的部件，用来承受径向载荷或径向和轴向的联合载荷。轴承

在泵中只是一个小部件，但它关系到泵的运行可靠性。泵的故障经常出现在泵的轴承中，当轴承发生故障时，泵就无法运转，所以轴承选择是否合理，使用是否正确是非常重要的。根据轴承结构的不同，可分为滚动轴承和潜动轴承两大类。
一、 滚动轴承
1.滚动轴承的使用场合

滚动轴承的优点是:轴承磨损小，磨损后泵的转子不会下沉，轴承间隙小，能保证对中性;结构简单，轴承的轴向尺寸小，标准化程度高，通用性互换性好，到处可以购到，价格便宜，使用安装维修方便;摩擦系数小，泵的启动力矩小。

滚动轴承的缺点是:负担冲击的能力差，高速时易有噪声，安装时要求准确。

由于滚动轴承的众多优点，滚动轴承在泵中使用非常广泛，一般转速在3000r/mim以下，轴径在100mm以下，首先选用滚动轴承。
2.滚动轴承的分类及特性

(1) 滚动轴承的分类如下:

(2)各类滚动轴承的特点:

①深沟球轴承:主要承受径向载荷，也可同时承受少量的双向载荷。结构简单，安装、拆卸、使用很方便。

②角接触球轴承，单列可承受径向和双向轴向载荷的联合载荷但不宜承受纯轴向载荷。列可受径向为主和双向朝向载荷的联合载荷但不宜承受纯轴向载荷。
    ③调心球(滚子) 轴承:主要承受径向载荷，也可同时承受少量的双向轴向载荷。

④圆柱滚子轴承:仅能承受径向载荷，内、外圈带挡边的单列轴承可承受较小的轴向载荷。
    ⑤滚针轴承:仅能承受径向载荷。
    ⑥圆锥滚子轴承:主要承受以径向载荷为主的径向轴向联合载荷，而大锥角可承受以轴向载荷为主的径向轴向联合载荷。单列的圆锥滚子轴承在径向载荷作用下会产生附加轴向力，因此，一般应成对使用。 圆锥滚子轴承的极限转速较低。
    ⑦推力轴承:推力球轴承51000型只能承受单向轴向载荷，52000 型可承受双向轴向载荷。

推力圆柱、圆锥轴承，只能承受单向轴向载荷。

推力调心滚子轴承，承受轴向载荷为主的轴向、径向联合载荷，但径向载荷不得超过轴向载荷的55%  渣浆泵厂家

Selection and use of bearing and bearing parts of slurry pump

The bearing of the pump is a component supporting the rotation of the pump rotor, which is used to bear radial load or combined radial and axial load. Bearing

In the pump is only a small part, but it is related to the operation reliability of the pump. Pump failure often occurs in the bearing of the pump. When the bearing fails, the pump cannot operate, so whether the bearing selection is reasonable and whether the use is correct is very important. According to the different bearing structure, it can be divided into two categories: rolling bearing and submerged bearing.

I. rolling bearing

1. Application of rolling bearing

The advantages of rolling bearing are: small bearing wear, no sinking of the pump rotor after wear, small bearing clearance, which can ensure neutral; simple structure, small axial size of the bearing, high degree of standardization, good universality and interchangeability, which can be purchased everywhere, low price, convenient installation and maintenance; small friction coefficient, small starting torque of the pump.

The disadvantages of rolling bearing are: poor ability to bear impact, easy to have noise at high speed, and accurate installation.

Because of many advantages of rolling bearing, rolling bearing is widely used in pumps. Generally, the speed is below 3000r / MIM, and the shaft diameter is below 100mm. First, rolling bearing is selected.

2. Classification and characteristics of rolling bearing

(1) the classification of rolling bearing is as follows:

(2) characteristics of various rolling bearings:

① deep groove ball bearing: mainly bear radial load, but also bear a small amount of bidirectional load at the same time. The structure is simple and easy to install, disassemble and use.

② angular contact ball bearing, single row can bear the combined load of radial and bidirectional axial load, but not pure axial load. The column can bear the combined load of radial and bidirectional direction load, but it is not suitable to bear the pure axial load.

③ self aligning ball (roller) bearing: mainly bear radial load, but also bear a small amount of bidirectional axial load at the same time.

④ cylindrical roller bearing: it can only bear radial load, and single row bearing with inner and outer ring flange can bear smaller axial load.

⑤ needle bearing: only able to bear radial load.

⑥ tapered roller bearing: it mainly bears the combined radial and axial load mainly based on the radial load, while the large cone angle can bear the combined radial and axial load mainly based on the axial load. Single row tapered roller bearings will produce additional axial force under radial load, so they should be used in pairs The limit speed of tapered roller bearing is low.

⑦ thrust bearing: thrust ball bearing 51000 can only bear one-way axial load, and 52000 can bear two-way axial load.

Thrust cylindrical and tapered bearings can only bear one-way axial load.

The thrust self-aligning roller bearing shall bear the axial and radial combined load dominated by the axial load, but the radial load shall not exceed 55% of the axial load of the slurry pump manufacturer