檢查運(yùn)行中機(jī)器的狀況并預(yù)備徹底的檢查計(jì)劃已越來(lái)越重要，其中又以NSK軸承為注意焦點(diǎn)，因?yàn)樗撬袡C(jī)器中重要的旋轉(zhuǎn)零件，NSK圓柱滾子軸承狀況監(jiān)測(cè)是預(yù)防保養(yǎng)中重要的一環(huán)，早期的檢測(cè)出NSK軸承破壞以避免由于軸承破壞所造成的非計(jì)劃性保養(yǎng)期間的設(shè)備停機(jī)。圓柱滾子軸承下面我就跟大家介紹一下傾聽(tīng)這種方法。
It is becoming more and more important to check the condition of the machine in operation and prepare thorough inspection plan. The NSK bearing is the focus of attention, because it is the most important rotating part of all machines. Cylindrical roller bearing condition monitoring is an important part of the preventive maintenance. Early detection of NSK bearing damage to avoid bearing breakage. The equipment shutdown during the non scheduled maintenance period caused by the bad. Below the cylindrical roller bearing, I will introduce to you how to listen to this method.
NSK圓柱滾子軸承利用聽(tīng)覺(jué)來(lái)辨識(shí)不規(guī)則的運(yùn)轉(zhuǎn)是一種很普通的方法，例子如借助電子式聽(tīng)診器來(lái)查覺(jué)某一零件的不正常噪音是有經(jīng)驗(yàn)操作員使用。軸承若是處于良好的運(yùn)轉(zhuǎn)狀況會(huì)發(fā)出低的嗚嗚聲音，若是發(fā)出尖銳的嘶嘶音圓柱滾子軸承、吱吱音及其它不規(guī)則的聲音、通常表示軸承處于不良的運(yùn)轉(zhuǎn)狀況。
Cylindrical roller bearings use hearing to identify irregular operation is a very common method, such as the use of electronic stethoscope to detect abnormal noise of a part is used by experienced operators. If the bearing is in good working condition, it will make a low whine, if it makes a sharp hiss cylindrical roller bearing, squeak and other irregular sound, usually indicating that the bearing is in poor operating condition.
1、瓦面腐蝕：光譜分析發(fā)現(xiàn)有色金屬元素濃度異常；鐵譜中出現(xiàn)了許多有色金屬成分的亞微米級(jí)磨損顆粒；潤(rùn)滑油水分超標(biāo)、酸值超標(biāo)。
1. Tile surface corrosion: Spectral analysis found that the concentration of non-ferrous metal elements was abnormal; ferrography appeared in many non-ferrous metal components of submicron wear particles; lubricating oil moisture exceeded the standard, acid value exceeded the standard.
2、軸頸表面拉傷：鐵譜中有鐵系切削磨?；蚝谏趸镱w粒,金屬表面存在回火色。
2. Surface strain of journal: There are iron series cutting abrasive particles or black oxide particles in ferrography, and tempering color on metal surface.
3、軸頸表面腐蝕：光譜分析發(fā)現(xiàn)鐵元素濃度異常,鐵譜中有許多鐵成分的亞微米顆粒,潤(rùn)滑油水分超標(biāo)或酸值超標(biāo)。
3. Surface corrosion of journal: Spectral analysis found that the concentration of iron was abnormal, there were many submicron particles of iron composition in the ferrography, the water content of lubricating oil exceeded the standard or acid value exceeded the standard.
4、表面拉傷：鐵譜中發(fā)現(xiàn)有切削磨粒,磨粒成分為有色金屬。
4. Surface strain: there are cutting abrasives in the ferrography, and the abrasive grains are non-ferrous metals.
5、瓦背微動(dòng)磨損：光譜分析發(fā)現(xiàn)鐵濃度異常,鐵譜中有許多鐵成分亞微米磨損顆粒,潤(rùn)滑油水分及酸值異常。
5. Tile back fretting wear: Spectral analysis found that iron concentration is abnormal, there are many iron components in ferrography sub-micron wear particles, lubricating oil moisture and acid value abnormal.
在液體潤(rùn)滑條件下,滑動(dòng)表面被潤(rùn)滑油分開(kāi)而不發(fā)生直接接觸,還可以大大減小摩擦損失和表面磨損,油膜還具有一定的吸振能力
Under the condition of liquid lubrication, the sliding surface is separated by lubricating oil without direct contact, and the friction loss and surface wear can be greatly reduced. The oil film also has a certain vibration absorption capacity.
尖銳的吱吱噪音可能是由于不適當(dāng)?shù)臐?rùn)滑所造成的。不適當(dāng)?shù)腘SK軸承間隙也會(huì)造成金屬聲。NSK圓柱滾子軸承外圈軌道上的凹痕會(huì)引起振動(dòng)，并造成平順清脆的聲音，若是由于安裝時(shí)所造成的敲擊傷痕也會(huì)產(chǎn)生噪音，此噪音會(huì)隨著NSK軸承轉(zhuǎn)速的高低而不同。若是有間歇性的噪音，則表示滾動(dòng)件可能受損，NSK圓柱滾子軸承此聲音是發(fā)生在當(dāng)受損表面被輾壓過(guò)時(shí)，軸承內(nèi)若有污染物常會(huì)引起嘶嘶音，嚴(yán)重的軸承損壞會(huì)產(chǎn)生不規(guī)則并且巨大的噪音。
The sharp squeak noise may be due to improper lubrication. Improper NSK bearing clearance can also cause metal noise. The notches on the outer track of cylindrical roller bearings can cause vibration and a smooth and crisp sound. If the notches are caused by striking during installation, the noise will vary with the speed of NSK bearings. If there is intermittent noise, it means that the rolling parts may be damaged, cylindrical roller bearing this sound occurs when the damaged surface is rolled over, if there are contaminants in the bearing often cause hissing, serious bearing damage will produce irregular and loud noise.
軸承損壞固然可藉由聽(tīng)力來(lái)查覺(jué)，但是通常此時(shí)已經(jīng)到了NSK軸承必須馬上被更換不可。所以，較好的方法例如使用如電子式狀況監(jiān)測(cè)儀器，NSK圓柱滾子軸承預(yù)先疹斷軸承的運(yùn)轉(zhuǎn)情況。
Bearing damage can be detected by hearing, but usually the NSK bearings must be replaced immediately. Therefore, better methods such as the use of electronic condition monitoring instruments, cylindrical roller bearings in advance to break the operation of the bearing.