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Principles of bearing temperature normal working  

2012-09-25 10:42:27|  分类: 技术 |  标签: |举报 |字号 订阅

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当我们在使用SKF轴承的时候,如果发现其温度很高的情况下,则赶紧停止设备运转,然后找出其原因,并按照上述提供的解决方案进行处理,但是可能因轴承发热的原因不同,所以解决的方式也不同,所以还是要具体情况具体对待,在技术人员的帮助下完成。

When we use the SKF bearings, if its very hot situations, then quickly stopped operating, and then find out its causes, and provide solution for processing in accordance with the above, but may be due to heating in the bearings for different reasons, that so addressed differently, so it is to be treated on a case, completed with the assistance of technical staff.

第一、检查FAG轴承在工作中的振动情况 从剥落、压痕、锈蚀、裂纹、磨损等都会在轴承的振动测量中反映,轴承振动对轴承的损伤是很敏感的,因此、通过采用特殊的轴承振动测量器(频率分析器等)可测量出振动的大小,通过频率分不可推断出异常的具体情况。由于测得的数值因进口轴承的使用条件或传感器安装位置等而不同,就需要事先对每台机器的测量值进行分析比较后确定其判断标准。

First, and check FAG bearings in work in the of vibration situation from peeling, and pressure trace, and rust, and crack, and wear, will in bearing of vibration measurement in the reflect, bearing vibration on bearing of injury is is sensitive of, therefore, and through used special of bearing vibration measurement Manager (frequency Analyzer,) can measurement out vibration of size, through frequency points not inferred out exception of specific situation. Due to the measured value of imported bearings, such as conditions of use or the sensor installation location different is required prior to each machine analysis and comparison of measurement values to be determined after their judging criteria.

第二、检查NSK轴承滚动时的声音情况 因为轴承即使有轻微的剥离等损伤,也会发出异常音和不规则音,所以就用测声器可以进行分辨,采用测声器,对运转中的轴承滚动声的大小及音质来进行检查,起到提前预防的作用。

Second, check the NSK bearings rolling sound because the split bearings even with minor injuries, also is making an abnormal sound and irregular sound, with acoustic logging can be distinguished using acoustic logging, in the operation of checking bearing size and sound of the rolling sound, playing the role of prevention in advance.

第三、要检查TIMKEN轴承转动时的温度 如果利用油孔能直接测量轴承外圈温度,则更位合适。一般情况下,轴承的温度,一般依据轴承室外面的温度就可推测出来的。如果润滑、安装部合适,则轴承温都会急骤上升,会出现异常高温,这时必须停止运转,采取必要的防范措施。

Third, the TIMKEN bearings to check rotation of the temperature if you use oil hole can directly measure the temperature of bearing outer ring, is more appropriate. Under normal circumstances, the bearing temperature, generally depending on the bearing outside of room temperature may speculate. If lubricated, install suitable, the bearing temperature is rising dramatically, and abnormal high temperature occurs, in which case you must stop and take the necessary precautions.

一般,NTN轴承的温度随着运转开始慢慢上升,1-2小时后达到稳定状态。轴承的正常温度随着机器的热容量,散热量,转速及负载而不同。

In General, NTN bearings temperature as the operation began slowly to rise, 1-2 hours to stabilize. Normal temperatures as the heat capacity of the machine for bearing, heat dissipation, speed and load vary.

无论是在轴上还是轴承座中,滚动轴承都要求在径向、轴向和切线方向等三个方向固定其位置。径向和切向的定位是通过对轴承套圈的紧配合来实现的,然而轴向定位只有在少数情况下采用紧配合;一般采用轴向限位零件,诸如端盖和挡圈等将轴向位置限定在游隙范围内。Both on the shaft and in the housing, rolling bearings are required in a radial, axial and tangential direction etc three directions fixed its position. Radial and tangential position is realized by the tight fit of the bearing rings, axial position, however it is only in rare cases with tight fit; generally use the axial spacing parts, such as cover and retaining ring, limit the axial position in the context of clearance.

在KOYO轴承进行选择配合时应着重把握以下四个注意事项:

When choosing a tie at KOYO bearings should emphasize the following four considerations:

1、滚动轴承配合要能够使轴承安装和拆卸简单方便,尽量做到省时、省工,省开支有三点。

1, rolling bearing bearing installation and removal easy, try to make a saving of time and labour, provincial spending is three points.

2、还有就是其套圈在其配合表面中不能沿切线方向滑动,以免会损坏配合面。

2, there is the ring in its mating surfaces cannot slide along the tangent, so as not to damage the mating surfaces.

3、为了降低轴承套圈变形程度,并能够充分发挥IKO轴承的承载能力,轴承套圈上最好有良好支撑且受力均匀。

3, in order to reduce the level of deformation of bearing rings, and can fully play IKO bearings load capacity, preferably with good support and force on the bearing ring evenly.

4、必须要适应轴向位置,在一定范围内有游动的能力,所以自由端轴承必须能与轴和轴承座孔的长度变化相适应。

4, the need to adapt the axial location, ability to walk within a certain range, so free-end bearing had to be commensurate with the bore axis and the length of the change.

INA轴承游隙在轴承的使用过程中起着重要的作用,如果轴承游隙不能正常工作的话,会直接影响到轴承的使用效率,一般情况,轴承在安全运转状态下,稍微有点负的运转游隙时,轴承寿命最大。但实际上要保持这一最佳状态是非常困难的一旦某种使用条件变化,则负游隙增大,从而招致轴承寿命显著下降或发热。所以,通常选择初期游隙时,要求运转游隙取为仅稍大于零。

INA bearings internal clearance in the bearing use plays an important role in the process, if the bearing clearance does not work properly, will directly affect the efficiency in the use of the bearing, General bearing under safe operation conditions, when a somewhat negative operational clearance, bearing life the most. But in fact is very difficult to maintain this optimal state of change once certain conditions of use, the negative clearance increases, thereby incurring significant decreases in the bearing life or fever. So, usually when the initial clearance, requested clearance operation takes only slightly greater than zero.

而通常条件下使用的轴承,将采用普通负荷的配合,转速和温度正常时,只需选择相应的普通游隙,使可得到适宜的运转游隙。既然轴承游隙对轴承非常重要,那么我们在使用轴承的过程中就应该多加注意轴承游隙的正常使用,以免由于轴承游隙不能正常工作而影响到轴承的正常使用,严重时还会影响轴承的使用寿命,应该引起我们的极度重视。

The bearings used under normal conditions, normal load will be applied with, rotation speed and temperature normal, simply select the normal tour gap, make available suitable operational clearance. Now that the bearing clearance of bearings very important, so we use the bearing should pay more attention to in the course of normal use of the bearing clearance to prevent bearing clearance does not affect the normal use of bearings as they work properly, also affects the service life of the bearing when the serious, should be our extreme attention.

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