南京NSK轴承精度可通过静态数进行测试。然而,只有当轴承以一定的速度和载荷变化时,它才能对基本尺寸的变化作出响应,即工作形状的综合质量和精度,这就要求对单个轴承进行渐进状态检测。轴承故障诊断是机械故障诊断技术的重要组成部分。由于牵引电机的缺点,相当数量的轴承与它有关。一旦发生故障,就会间接影响机车工作。
The bearing accuracy of Nanjing NSK can be tested by static number. However, only when the bearing changes at a certain speed and load can it respond to the change of the basic size, that is, the comprehensive quality and accuracy of the working shape, which requires the progressive state detection of a single bearing. Bearing fault diagnosis is an important part of mechanical fault diagnosis technology. Due to the drawback of traction motors, a considerable number of bearings are related to it. Once the fault occurs, it will indirectly affect the locomotive work.
那时,滚动轴承故障诊断较为广泛和适用的方法是振动诊断,它分为“易诊断”和“精细诊断”。南京NSK轴承缺点的诊断技术经过多年的发展,取得了很大的进步。当时,国外有许多轴承缺点诊断仪器,并配备了一套高度智能化的检测设备,具有诊断简单、诊断准确的双层功能。JL-201型机车轴承故障诊断仪和JL-501型机车轴承静态检测系统是由铁路部机车车辆研究所研制开发的。Ry适合于电力机车牵引电机轴承的检测与诊断,在实际缺点检测中发挥了很好的作用。
At that time, the rolling bearing fault diagnosis more widely and applicable method is vibration diagnosis, which is pided into "easy diagnosis" and "fine diagnosis". The diagnostic technology of NSK bearing defects in Nanjing has made great progress after years of development. At that time, there were many foreign bearing defect diagnosis instruments, and equipped with a set of highly intelligent detection equipment, with a simple diagnosis, accurate diagnosis of double-deck function. JL-201 locomotive bearing fault diagnosis instrument and JL-501 locomotive bearing static detection system are developed by locomotive and Rolling Stock Research Institute of Ministry of Railway. Ry is suitable for the detection and diagnosis of traction motor bearings of electric locomotives, and plays a very good role in the actual defect detection.
轴承滚动的工作轨迹和加载方法,内外滚道表面由于滚动接触滚动元件,所以工作轨迹暗,工作轨迹附着在滚道表面不很属于,从而改变了载荷条件。拆下轴承时,应严格观察并观察南京NSK轴承滚道表面轨道。假设轨迹被仔细观察,则只有径向载荷、大的轴向载荷、扭矩载荷或轴承箱上的刚度不等式是已知的。它可以用来检查轴承是否可以添加到试验载荷和偏差设备,并可以作为线索轴承损坏的原因,国立大学。图6-1示出了深沟球轴承在不同载荷条件下的工作轨迹。
Bearing rolling trajectory and loading method, the surface of internal and external raceways because of rolling contact with rolling elements, so the working trajectory is dark, the working trajectory attached to the raceway surface is not very belong to, thus changing the load conditions. When the bearing is removed, the surface track of Nanjing NSK bearing raceway should be observed and observed strictly. Assuming that the trajectory is carefully observed, only radial loads, large axial loads, torque loads, or stiffness inequalities on the bearing box are known. It can be used to check whether bearings can be added to test loads and deviation equipment, and can be used as a cause of clue bearing damage, National University. Fig. 6-1 shows the working trajectories of deep groove ball bearings under different load conditions.
(a)当内圈发生变化时,正常工作轨道仅承受径向载荷。(c)~(h)所示的工作轨迹对南京NSK轴承的影响较小,使用寿命相对较短。滚子轴承的工作轨迹是相同的。(1)内圈负荷变化时,圆柱滚子轴承的工作轨迹发生变化。当径向载荷增大时,圆柱滚子轴承外圈的工作轨迹更加。(j)内外圈须倾斜,轴挠度大于轨道,轨道在滚道表面上,轨道在负载环出口处的阴影的纵向舱口处倾斜,双列圆锥滚子轴承改变内圈。K意味着只有外环的工作轨道被加载在径向载荷上。L表示轨道仅承受轴向载荷。当内环和外环明显倾斜且仅承受南京NSK轴承径向载荷时,轨迹偏离两个轨迹平面180。
(a) when the inner ring changes, the normal working track only bears radial load. (c) the track shown in ~ (H) has little effect on the NSK bearing in Nanjing, and the service life is relatively short. The working track of roller bearings is the same. (1) when the inner ring load changes, the working track of cylindrical roller bearings changes. When the radial load increases, the working track of cylindrical roller bearing outer ring is more. (j) The inner and outer rings must be tilted, the shaft deflection is greater than the track, the track is on the raceway surface, the track is tilted at the longitudinal hatch of the shadow at the exit of the load ring, and the double row tapered roller bearings change the inner ring. K means that only the working track of the outer ring is loaded on the radial load. L indicates that the track only bears axial load. The trajectory deviates from the two trajectory planes 180 when the inner and outer rings tilt obviously and only bear the radial load of Nanjing NSK bearing.
文章来自:南京SKF轴承 www.wh-skf.com
The article is from: Nanjing SKF bearing www.wh-skf.com
文章来自:南京INA轴承 www.ina-china.cn
The article is from: Nanjing INA bearing www.ina-china.cn
文章来自:南京NSK轴承 www.klbbearings.com
The article is from: Nanjing NSK bearing www.klbbearings.com
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