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SKF bearing Burns appears injury causes analysis  

2012-08-30 11:36:09|  分类: 技术 |  标签: |举报 |字号 订阅

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所谓的SKF轴承出现烧伤损伤主要是指:SKF轴承的滚道轮、滚动体以及保持架在旋转中急剧发热直至变色、软化、熔敷和破损。造成SKF轴承出现烧伤损伤的主要原因有:使用了不正规的润滑剂、润滑作用不好、润滑剂量没有把握好,还可能是轴承承载的负荷多大造成的。还有一部分原因是轴承、轴承箱的精度不良,轴的绕度大造成的。

SKF bearings so-called burn injury occurred mainly refer to: SKF bearing Raceway round, rolling elements and cage spinning rapidly heating until the discoloration, softening, cladding and tear. Cause a burn injury SKF bearings are the main reasons why: it uses the irregular amount of poor lubricant, lubrication and lubricant does not grasp, can also be load bearing caused by much. Also is part of the reason is the poor accuracy of bearings, bearing box, shaft caused by degrees around.

  解决SKF轴承烧伤的方法就是:找对润滑油的正确使用方法,控制好润滑剂的量,了解轴承的承载负荷的能力,检测轴承于轴承箱的精度,防止SKF轴承的烧伤在各个方面都要做到位。

Solution to the SKF bearing Burns is: found on the proper usage of lubricating oil, control the volume of lubricant, understanding of bearing load capacity of bearing, detection accuracy of the bearings on the bearing boxes to prevent burn in various aspects of SKF bearings are to be done in place.

SKF轴承滑动轴承在气缸压力冲击载荷)的重复作用下,外表层发作塑性变形和冷作软化,部分损失变形才能,逐渐形成纹并一直扩大,而后随着磨屑的脱落,在受载 外表层形成穴。个别轴瓦发作穴蚀时,是先涌现凹坑,而后这种凹坑逐渐扩张并引起合金层界面的开裂,裂纹沿着界面的平行方向扩大,直到剥落为止。滑动轴承穴 蚀的重要起因是,因为油槽和油孔等构造要素的横断面忽然转变引起油流激烈紊乱,在油流紊乱的真空区形成气泡,随后因为压力降低,气泡溃灭而发作穴蚀。穴蚀 个别发作在轴承的高载区,如曲轴主轴承的下轴瓦上。

Impact loads of cylinder pressure in sliding bearing SKF bearing) under the effect of repeat, attack of surface plastic deformation and the cold softening, partial loss of deformation, gradually formed lines and has been expanded, and then as the debris fall off, in the formation of loading surface points. Individual bearing when the onset of cavitation was first emerging pits, and this caused potholes to gradually expand and cracks of alloy layer interface, crack along the interface of parallel direction to expand, until such time as peeling. Bearing cavitation causes is important, because the oil Groove and holes of constructed elements, such as cross-sectional oil flow caused by suddenly changing violent disorder, oil flow disorder vacuum forming bubbles, then because the pressure has eased, crumble and fall while the onset of cavitation bubbles. Cavitation erosion of individual attacks in the high area of the bearing, crankshaft main bearings on the bearing down.

SKF轴承滑动轴承机械伤害是指轴瓦的合金外表涌现不同水平的沟痕,重大时在接触外表发作金属剥离以及涌现大面积的紊乱划伤;个别状况下,接触面伤害与烧蚀景象同时存在。形成轴承机械伤害的重要起因是轴承外表难以形成油膜或油膜被重大破坏。

SKF bearing mechanical injuries means bearing of sliding bearing alloy exterior ditch on the emergence of different levels of trace, in contact appearance when major attack split metal, as well as the emergence of widespread disorder scratched; individual situations, contact surface damage and erosion scene exists. Important bearing is the cause of the formation of bearings mechanical injuries looks difficult to form oil film or been significant damage.

SKF轴承疲惫点蚀是指,因为发起机超负荷任务,使得轴承任务过热及轴承间隙过大,形成轴承中部疲惫伤害、疲惫点蚀或许疲惫脱落。这种伤害大多是因为超 载、轴承间隙过大,或许光滑油不干净、内中混有异物所致。因而,运用时应当注重避免轴承超载任务不要以过低或过高的转速运转;怠速时要将发起机调剂到稳固 状况;确保正常的轴承间隙,避免发起机转速过高或过低;检讨、调剂冷却体系的任务状况,确保发起机的任务温度相宜。

SKF bearing fatigue point erosion refers to, since launched task overload, make the task of bearing overheating and excessive bearing clearances, form a central bearing fatigue injury, perhaps tired of pitting fatigue peeling. Such injuries were mostly due to overloading, excessive bearing clearances, perhaps smooth dirty oil, which is mixed with foreign bodies. Thus, the application should pay attention to avoid bearing overload tasks do not too low or too high speed running; to initiate transfers to a solid when idling condition; ensure that bearings with normal clearance to avoid launching speed too high or too low; review task status, dispensing and cooling system, ensure the task of launching the temperature appropriate.

SKF轴承合金侵蚀个别是区为光滑油不纯,光滑油中所台的化学杂质(酸性氧化物等)使轴承合金氧化而生成酸性物资,引起轴承合金部分脱落,形成无规矩的渺小裂孔或小凹坑。轴承合金侵蚀的重要起因是光滑油选用不当、轴承资料耐侵蚀性差,或许发起机任务粗鲁、温渡过高级。

SKF bearings for smooth oils impure alloy erosion of individual region, smooth and chemical impurities in the oil (acidic oxides) acidic materials generated bearing alloy oxidation, cause bearing alloy parts fall off, forming a small hiatus with no rules or pothole. Bearing alloy by erosion of the important causes of improper selection of smooth oil, bearing information poor corrosion resistance, perhaps launching machine task rude, warm through advanced.

本文来源贝尔轴承http://www.beier-bearingshop.com/skf-bearing.shtml

 

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