FAG電機(jī)軸承技術(shù)

1、Management Meeting Schaeffler GruppeFAG電機(jī)軸承技術(shù)電機(jī)軸承技術(shù)舍弗勒集團(tuán)舍弗勒集團(tuán)-工業(yè)工業(yè)何青瑋何青瑋/2009 Management Meeting Schaeffler Gruppe電氣消費(fèi)品和電機(jī)電氣消費(fèi)品和電機(jī)從創(chuàng)始人到今天從創(chuàng)始人到今天帶保持架滾針帶保持架滾針軸承軸承1949球滾子球滾子1883Friedrich Fischer (FAG)(1849-1899)5000 名工程師工作在研發(fā)部門高品質(zhì), 持之以恒地關(guān)注產(chǎn)品的品質(zhì)和提供的服務(wù)Georg Schaeffler (INA)(1917-1996)Management Meeting S

2、chaeffler Gruppe電氣消費(fèi)品和電機(jī)電氣消費(fèi)品和電機(jī)部分客戶部分客戶ELSAN Management Meeting Schaeffler GruppeMain rotor bearing主轉(zhuǎn)子軸承主轉(zhuǎn)子軸承100% 1x40% 2x ?Nacelle bearing偏航軸承偏航軸承100% 1xNacelle adjustment drive偏航調(diào)整驅(qū)動(dòng)偏航調(diào)整驅(qū)動(dòng)100% 2.3xBlade bearing100% 3x槳葉軸承槳葉軸承Gearbox齒輪箱齒輪箱80% 1xGenerator發(fā)電機(jī)發(fā)電機(jī)80% 2xBlade adjustment drive槳葉調(diào)整驅(qū)動(dòng)槳葉調(diào)整

3、驅(qū)動(dòng)80% 3xBearing potential in a WET用于風(fēng)能發(fā)電設(shè)備上的軸承潛力用于風(fēng)能發(fā)電設(shè)備上的軸承潛力Focus Generator集中于發(fā)電機(jī)集中于發(fā)電機(jī)Entnommen: BTM 2004Business Plan FAG Windenergy AWManagement Meeting Schaeffler GruppeBasic loads on a Generator 作用于電機(jī)上的載荷作用于電機(jī)上的載荷Weight轉(zhuǎn)子重量轉(zhuǎn)子重量Magnetic forces電磁力電磁力Axial load from coupling 來自于耦合器的軸向載荷來自于耦合器的軸向

4、載荷Thermal expansion熱膨脹熱膨脹Management Meeting Schaeffler GruppeBasic loads on a WET Generator作用于風(fēng)能發(fā)電機(jī)上的載荷作用于風(fēng)能發(fā)電機(jī)上的載荷Weight (radial and axial component) 重力（徑向或軸向）重力（徑向或軸向）Magnetic forces電磁力電磁力Axial load from coupling 來自于聯(lián)軸器的軸向力來自于聯(lián)軸器的軸向力Thermal expansion 熱膨脹熱膨脹Vibration of nacelle機(jī)艙的震動(dòng)機(jī)艙的震動(dòng)Disturbance

5、 from Grid/power electronics來自于高壓電網(wǎng)來自于高壓電網(wǎng)/電力的電力的干擾干擾Tilting angle of 5 to 8 傾角傾角Vibration of drive train運(yùn)輸中的振運(yùn)輸中的振動(dòng)動(dòng)Management Meeting Schaeffler Gruppe電機(jī)軸承配置電機(jī)軸承配置Non-driven side非驅(qū)動(dòng)端Driven side驅(qū)動(dòng)端DGBB (+ spring彈簧彈簧)DGBB深溝球深溝球DGBB+CRBCRB圓柱滾子圓柱滾子FPCBB + CRBCRBSRB調(diào)心滾子調(diào)心滾子SRBLocating non locating 固定固定

6、-非固定非固定Floating (+ spring) 浮動(dòng)（浮動(dòng)（+彈簧）彈簧）Management Meeting Schaeffler Gruppe電機(jī)軸承配置電機(jī)軸承配置Dimensioning factor影響因素Effects影響Load 載荷載荷Too low: Skidding effects太低：滑動(dòng)太低：滑動(dòng)Too high: Pitting effects 太高：點(diǎn)蝕太高：點(diǎn)蝕Temperature (gradients)溫度（梯度）溫度（梯度）Preloading (see high load)預(yù)載預(yù)載Damaging of lubricant 潤滑破壞潤滑破壞Lubri

7、cant潤滑潤滑Kappa 1 all temperature所有溫度所有溫度60 80 running運(yùn)行運(yùn)行(preload 100, start-up -20)Subject to vibrations振動(dòng)振動(dòng)Current/Voltage電流電流/電壓電壓Too high voltage or damaged coating lead to typical marks (failure as consequence)高電壓或涂層損壞導(dǎo)致電蝕高電壓或涂層損壞導(dǎo)致電蝕Management Meeting Schaeffler Gruppe電機(jī)軸承配置電機(jī)軸承配置DGBB 62., 63.u

8、sually open, sealed, shielded possible 通常為開式、密封或帶防塵蓋通常為開式、密封或帶防塵蓋Brass or sheet metal cage銅或鋼金屬保持架銅或鋼金屬保持架CRB NU10., NU20.黃銅保持架為首選黃銅保持架為首選SRB 222., 223.Metal cage金屬保持架金屬保持架Special housing FAG (large machines) 特種特種FAG軸承座（大型設(shè)備）軸承座（大型設(shè)備）lLubrication潤滑lGrease油脂 (n x dm 1,500,000)lOil sump / circulation

9、油池/循環(huán) (n x dm 700mm- 不帶密封不帶密封, 從油道進(jìn)行潤滑從油道進(jìn)行潤滑 - 噪音大于球軸承噪音大于球軸承要點(diǎn): 對圓柱滾子軸承總是需要一個(gè)大于對圓柱滾子軸承總是需要一個(gè)大于2%Cdyn 的最小的最小徑向載荷來避免滑動(dòng)、噪音和失效徑向載荷來避免滑動(dòng)、噪音和失效!Management Meeting Schaeffler Gruppe公差與配合公差與配合Bearing shaft mmfitcommentDGBB100 200m6/H6G6 (spring / non locating)above 200n6/H6G6 (spring / non locating)CRB 60

10、 500m6/K6DGBBm6 (n6) /rad freeif used as axial bearing Management Meeting Schaeffler Gruppe簡介及分類簡介及分類 國內(nèi)目前裝機(jī)的電機(jī)一般分為二類國內(nèi)目前裝機(jī)的電機(jī)一般分為二類:異步型異步型（1）籠型異步發(fā)電機(jī)：功率為）籠型異步發(fā)電機(jī)：功率為600/125kW 750kW 800kW 1250kW 定子向電網(wǎng)輸送不同功率的定子向電網(wǎng)輸送不同功率的50Hz交流電交流電;（2）繞線式雙饋異步發(fā)電機(jī)：功率為）繞線式雙饋異步發(fā)電機(jī)：功率為1500kW 定子向電網(wǎng)饋送定子向電網(wǎng)饋送50Hz交流電，轉(zhuǎn)子由變頻器控制，向

11、電網(wǎng)間接饋送功率。（雙饋）交流電，轉(zhuǎn)子由變頻器控制，向電網(wǎng)間接饋送功率。（雙饋）同步型同步型（1）永磁同步發(fā)電機(jī)：功率為）永磁同步發(fā)電機(jī)：功率為750kW 1200kW 1500kW 由永磁體產(chǎn)生磁場由永磁體產(chǎn)生磁場,定子輸出經(jīng)定子輸出經(jīng) 全功率整流逆變后向電網(wǎng)輸送全功率整流逆變后向電網(wǎng)輸送50Hz交流電交流電（2）電勵(lì)磁同步發(fā)電機(jī)：由外接到轉(zhuǎn)子上的直流電流產(chǎn)生磁場）電勵(lì)磁同步發(fā)電機(jī)：由外接到轉(zhuǎn)子上的直流電流產(chǎn)生磁場,定子輸出經(jīng)全功率整流逆定子輸出經(jīng)全功率整流逆 變后向電網(wǎng)輸送變后向電網(wǎng)輸送50Hz交流電交流電 Management Meeting Schaeffler Gruppe雙饋異步風(fēng)

12、力發(fā)電機(jī)系統(tǒng)雙饋異步風(fēng)力發(fā)電機(jī)系統(tǒng)系統(tǒng)主回路構(gòu)成：系統(tǒng)主回路構(gòu)成： 雙饋異步發(fā)電機(jī)雙饋異步發(fā)電機(jī) 交直交雙向功率變換器（高頻變頻器）交直交雙向功率變換器（高頻變頻器）Management Meeting Schaeffler Gruppe滾動(dòng)軸承的電氣特性滾動(dòng)軸承的電氣特性 阻抗特性阻抗特性 滾動(dòng)軸承的阻抗?jié)L動(dòng)軸承的阻抗 Z = Za + Zb Za指滾動(dòng)體與外圈之間的阻抗指滾動(dòng)體與外圈之間的阻抗;Zb指滾動(dòng)體與內(nèi)圈之間的阻抗指滾動(dòng)體與內(nèi)圈之間的阻抗 但是但是: 潤滑油膜厚度潤滑油膜厚度,粘度粘度,溫度以及轉(zhuǎn)速和機(jī)械負(fù)載都會(huì)對阻抗特性產(chǎn)生影響溫度以及轉(zhuǎn)速和機(jī)械負(fù)載都會(huì)對阻抗特性產(chǎn)生影響.Man

13、agement Meeting Schaeffler Gruppe 金屬接觸狀態(tài)下金屬接觸狀態(tài)下, 阻抗阻抗Z60A。其連接線應(yīng)短而粗，與軸接觸的一端可采用電刷或短接棒。其連接線應(yīng)短而粗，與軸接觸的一端可采用電刷或短接棒。Damages due to excessive voltage由于過電壓造成的損壞由于過電壓造成的損壞False brinelling due to a continuous excessive voltage連續(xù)的過電壓造成的連續(xù)凹痕連續(xù)的過電壓造成的連續(xù)凹痕Smelting scratch in a raceway due to disruptive discharge

14、由于擊穿放電而在滾道上產(chǎn)生融化的刮痕由于擊穿放電而在滾道上產(chǎn)生融化的刮痕軸電流軸電流 現(xiàn)象現(xiàn)象Damages due to disruptive discharge擊穿放電造成的損壞擊穿放電造成的損壞Smelting Scratch with a welding bead刮痕中的焊珠刮痕中的焊珠軸電流軸電流 現(xiàn)象現(xiàn)象calculated current density計(jì)算電流密度計(jì)算電流密度(= current / total contact area ball-raceway)(=電流/滾動(dòng)體與滾道總的接觸面積)together with duration of current flowis

15、 a good measure for estimating theamount of ball and raceway damage與電流變化周期一起可以用來預(yù)見滾道與滾動(dòng)體的損壞程度Current density 電流密度電流密度S= IAA/mm2軸電流軸電流 判定判定Current density0.1 A/mm - no damage 無損壞無損壞0.7 A/mm - longer lifetime 較長的使用壽命較長的使用壽命1.4 A/mm - approx. 1000 h of lifetime 大約大約1000h的使用壽命的使用壽命2.0 A/mm - immediately

16、 destroyed raceway 滾道迅速損壞滾道迅速損壞Attention: only guided values 注意注意: 僅供參考僅供參考Current density 電流密度電流密度S= IAA/mm2Current density 電流密度電流密度軸電流軸電流 判定判定Current InsulationBasics / AppearanceTraces of current flow in bearing rings: Current density 0.5 A/mm, duration 50 h軸承滾道上的電流痕跡軸承滾道上的電流痕跡: 電流密度電流密度0.5 A/mm,

17、 運(yùn)轉(zhuǎn)周期運(yùn)轉(zhuǎn)周期50h Outer ring Inner ring 外圈外圈內(nèi)圈內(nèi)圈Current Insulation 電絕緣電絕緣Basics / Appearance 基礎(chǔ)基礎(chǔ)/現(xiàn)象現(xiàn)象Current InsulationBasics / AppearanceTraces of current flow in bearing rings: Current density 4.5 A/mm, duration 50 h軸承滾道上的電流痕跡軸承滾道上的電流痕跡: 電流密度電流密度4.5 A/mm, 運(yùn)轉(zhuǎn)周期運(yùn)轉(zhuǎn)周期50h Outer ring Inner ring外圈外圈內(nèi)圈內(nèi)圈Curre

18、nt Insulation 電絕緣電絕緣Basics / Appearance 基礎(chǔ)基礎(chǔ)/現(xiàn)象現(xiàn)象Current InsulationBasics / AppearanceTraces of current flow in bearing rings: Current density 0.3 A/mm, duration 2000 h軸承滾道上的電流痕跡軸承滾道上的電流痕跡: 電流密度電流密度0.3 A/mm, 運(yùn)轉(zhuǎn)周期運(yùn)轉(zhuǎn)周期2000h Outer ring Inner ring外圈外圈內(nèi)圈內(nèi)圈Current Insulation 電絕緣電絕緣Basics / Appearance 基礎(chǔ)基礎(chǔ)

19、/現(xiàn)象現(xiàn)象Current InsulationBasics / AppearanceTraces of current flow in bearing rings: Current density 2.3 A/mm, duration 1400 h軸承滾道上的電流痕跡軸承滾道上的電流痕跡: 電流密度電流密度2.3 A/mm, 運(yùn)轉(zhuǎn)周期運(yùn)轉(zhuǎn)周期1400h Outer ring Inner ring外圈外圈內(nèi)圈內(nèi)圈Current Insulation 電絕緣電絕緣Basics / Appearance 基礎(chǔ)基礎(chǔ)/現(xiàn)象現(xiàn)象Current InsulationBasics / Appearance E

20、lectric currents through bearings may cause damage of rollers and raceways. 通過軸承的電流會(huì)引起滾動(dòng)體與滾道的損壞通過軸承的電流會(huì)引起滾動(dòng)體與滾道的損壞 At current densities 0.1 A/mm no severe damages have been observed so far. 當(dāng)電流密度當(dāng)電流密度 0.1 A/mm, electroerosion and fluting are well known damage characteristics. 當(dāng)電流密度 0.1 A/mm , 電蝕刻刮痕與

21、帶凹槽條紋成為最 主要的損壞現(xiàn)象 A way of preventing damage is electric insulation of one of the rings. 防止損壞的方法是對內(nèi)外圈之一進(jìn)行電絕緣處理防止損壞的方法是對內(nèi)外圈之一進(jìn)行電絕緣處理 Ceramic rollers provide an alternative. 陶瓷滾動(dòng)體同樣可以保護(hù)軸承陶瓷滾動(dòng)體同樣可以保護(hù)軸承.Current Insulation 電絕緣電絕緣Basics / Appearance 基礎(chǔ)基礎(chǔ)/現(xiàn)象現(xiàn)象6209.C3Fa=310NFr=2000Nn=1000rpmk5/H6T=20CEllipti

22、cal Contact Area DGBB橢圓形接觸區(qū)域橢圓形接觸區(qū)域 - 深溝球軸承深溝球軸承DGBBCurrent InsulationBasics / AppearanceCurrent Insulation 電絕緣電絕緣Basics / Appearance 基礎(chǔ)基礎(chǔ)/現(xiàn)象現(xiàn)象Management Meeting Schaeffler GruppeFAG 混合陶瓷軸承混合陶瓷軸承FAG hybrid bearings FAG 混合陶瓷深溝球軸承混合陶瓷深溝球軸承 FAG Large hybrid deep groove ball bearings 工業(yè)電機(jī)和發(fā)電機(jī)的有效解決方案工業(yè)電機(jī)

23、和發(fā)電機(jī)的有效解決方案 A solution for electric motors and generators風(fēng)力發(fā)電機(jī)的有效解決方案風(fēng)力發(fā)電機(jī)的有效解決方案 The solution for wind turbine generators軸承級內(nèi)外圈Bearing grade steel rings軸承級氮化硅（陶瓷）滾動(dòng)體Bearing grade silicon nitride (ceramic) rolling elementsManagement Meeting Schaeffler Gruppe材料特性材料特性Material properties軸承材料軸承材料Bearing

24、 material 鋼鋼Steel 氮化硅氮化硅Silicon nitride陶瓷陶瓷Porcelain耐壓強(qiáng)度耐壓強(qiáng)度Compressive strength (MPa)8803 000950抗拉強(qiáng)度抗拉強(qiáng)度Tensile strength (Mpa)800800150楊氏模量楊氏模量Youngs modulus (Gpa)210310125硬度硬度Hardness (HV 10)7001 700800電阻系數(shù)電阻系數(shù)Resistivity (W W cm)25 10-8導(dǎo)體導(dǎo)體Conductor1014絕緣體絕緣體Insulator1012絕緣體絕緣體Insulator密度密度Densit

25、y (g/cm)7.73.22.9熱膨脹系數(shù)熱膨脹系數(shù)Coefficient of thermal elongation (10-6 K-1)1235混合陶瓷球軸承可以很好地解決眾多不同運(yùn)行條件下的問題混合陶瓷球軸承可以很好地解決眾多不同運(yùn)行條件下的問題Hybrid bearings solve problems under severe operating conditions陶瓷材料作滾動(dòng)體Ceramic material for rolling elementsCurrent InsulationPossibilities of InsulationInsulation to avoid

26、 excessive voltage避免過電壓的絕緣方法避免過電壓的絕緣方法outer ring- inner ring-外圈外圈 coating 內(nèi)圈內(nèi)圈 涂層涂層ceramic rolling elements陶瓷滾動(dòng)體陶瓷滾動(dòng)體Suffix: J20A, J20AA, J20B后綴后綴:J20CHCCurrent Insulation 電絕緣電絕緣Possibilities of Insulation 絕緣的可能性絕緣的可能性O(shè)uter Ring Coating (J20AA and J20A)外圈帶涂層外圈帶涂層Outer ringcoating外圈涂層外圈涂層J20AAJ20ALay

27、er thickness涂層厚度涂層厚度Disruptive Voltage擊穿電壓擊穿電壓Environment環(huán)境環(huán)境 Availibilit 適用于適用于for ball bearings球軸承球軸承for roller bearing滾子軸承滾子軸承200m1000 Volthumid/dry潮濕/干燥60mm to420mm outer dia60mm to420mm outer dia200m1000 Voltdry干燥60mm to1400mm outer dia60mm to1400mm outer diaAluminiumoxyd (Al2O3)氧化鋁涂層Advantage:

28、 low price, large bearings, 優(yōu)點(diǎn)： 成本低，適用于大型軸承 could be used in humid invironment J20AA 可以在潮濕的環(huán)境下使用Disadvantage: sometimes not effective enough(frequency converter)缺點(diǎn)： 有時(shí)候作用不明顯（變頻器使用條下） poor possibility to seal the bearing 軸承的密封效果可能不佳Insulation to avoid Excessive Voltage避免過電壓的絕緣方法避免過電壓的絕緣方法Outer Ring C

29、oating (J20B) cost efficient外圈涂層外圈涂層 (J20B)- 低成本低成本Outer ringcoatingLayer thickness涂層厚度涂層厚度Disruptive Voltage擊穿電壓擊穿電壓Environment環(huán)境環(huán)境 Availibility 適用于適用于for ball bearings球軸承球軸承for roller bearing滾子軸承滾子軸承Aluminiumoxyd (Al2O3)氧化鋁涂層Advantage: low price, large bearings優(yōu)點(diǎn)：優(yōu)點(diǎn)： 成本低，適用于大型軸承Disadvantage: not e

30、ffective enough (frequency converter)缺點(diǎn)缺點(diǎn)： 使用變頻器時(shí)效果不佳60mm to1400mm outer diameter 外徑60mm to1400mm outer diameter 外徑Current Insulation 電絕緣電絕緣Possibilities of Insulation 絕緣的可能性絕緣的可能性Insulation to avoid Excessive Voltage避免過電壓的絕緣方法避免過電壓的絕緣方法Inner Ring Coating (J20C)內(nèi)圈帶涂層內(nèi)圈帶涂層Inner ringcoating內(nèi)圈帶涂層內(nèi)圈帶涂層J

31、20CLayer thickness涂層厚度涂層厚度Disruptive Voltage擊穿電壓擊穿電壓Environment環(huán)境環(huán)境 Availibility 適用于適用于for all bearing typs適用于所有軸承類型適用于所有軸承類型200m1000 Volthumid/dry潮濕/干燥70mm inner dia（內(nèi)徑） to420mm outer diameter（外徑）Advantage: low cost, good possibility to seal,protects against high frequency current優(yōu)點(diǎn)：優(yōu)點(diǎn)：成本低，可以實(shí)現(xiàn)軸承密封

32、，能避免高頻電流破壞Disadvantage: not all sizes of bearings are availible, a bit higher cost than outer coating缺點(diǎn)：不能滿足所有軸承尺寸，成本較外圈涂層略高Aluminiumoxyd (Al2O3)氧化鋁涂層Current Insulation 電絕緣電絕緣Possibilities of Insulation 絕緣的可能性絕緣的可能性Insulation to avoid Excessive Voltage避免過電壓的絕緣方法避免過電壓的絕緣方法Ceramic Rolling Elements陶瓷滾動(dòng)

33、體陶瓷滾動(dòng)體Ceramic Rolling Elements陶瓷滾動(dòng)體陶瓷滾動(dòng)體HCup to ball 13mm(6210/6309)滾動(dòng)體直徑最大到 13mmAdvantage: + no problems with capacitive currents優(yōu)點(diǎn)： 可以承受容性電流 + standard sealing 標(biāo)準(zhǔn)密封形式 + increase of speed 15 % 速度增加約15 + increase of grease life time up to 100 % 潤滑脂壽命增加到100 + lower demand of lubrication 更低的潤滑要求 + low

34、er friction and temperature 低摩擦并且溫升較低 + less wear due to lack of lubrication 低的耗脂量以及低磨損 + better conditions at dry-running operation 在干運(yùn)轉(zhuǎn)情況下有較好的表現(xiàn)Disadvantages: + big balls increase costs 缺點(diǎn)： 對于大球體，制造成本增加了Availibility適用于適用于for ball bearings所有的球軸承所有的球軸承Current Insulation 電絕緣電絕緣Possibilities of Insula

35、tion 絕緣的可能性絕緣的可能性Insulation to avoid Excessive Voltage避免過電壓的絕緣方法避免過電壓的絕緣方法Management Meeting Schaeffler Gruppe電氣特性電氣特性Electrical properties低電容（約低電容（約100pF） Low electrical capacitance (100 pF)高頻高阻抗高頻高阻抗 High impedance even at high frequencies變頻器驅(qū)動(dòng)運(yùn)行條件下對高頻電流可靠的變頻器驅(qū)動(dòng)運(yùn)行條件下對高頻電流可靠的絕緣性能絕緣性能 Reliable insul

36、ation against high frequency currents under frequency converter operation 滾動(dòng)體電腐蝕已不再是個(gè)問題滾動(dòng)體電腐蝕已不再是個(gè)問題 No longer risks of electrical erosion in the rolling contactssACr022 211CfRZManagement Meeting Schaeffler Gruppe特點(diǎn)特點(diǎn)Features標(biāo)準(zhǔn)軸承尺寸標(biāo)準(zhǔn)軸承尺寸Standard bearing boundary dimensions潤滑不良情況下卓越的運(yùn)行特性潤滑不良情況下卓越的運(yùn)行特

37、性Superior performance under poor lubrication超高的耐磨特性超高的耐磨特性High wear resistance超高的速度特性超高的速度特性High speed capabilities電氣絕緣電氣絕緣Electrical insulation更長的軸承壽命更長的軸承壽命Longer service life更輕的重量更輕的重量-比普通鋼輕比普通鋼輕60% Weight reduction - 60% less weight compared to its steel equivalent更小的離心力更小的離心力-低摩擦，低損耗低摩擦，低損耗 Low

38、 centrifugal forces - lower friction and, thus, reduced internal lossesManagement Meeting Schaeffler Gruppe絕緣涂層絕緣涂層 工藝過程工藝過程 等離子噴涂等離子噴涂1. 陰極陰極2. 氣體輸送氣體輸送(氧氣氧氣)3. 粉末輸送粉末輸送(氧化鋁氧化鋁)4. 等離子噴嘴等離子噴嘴(陽極陽極)5. 工件噴涂表面工件噴涂表面Management Meeting Schaeffler GruppeManagement Meeting Schaeffler Gruppewood plate / ins

39、ulation絕緣膠木板Test set up insulation testing-絕緣測試裝置Management Meeting Schaeffler GruppeTest method-檢測方法Alternate current (AC): Step by step increasing the voltage up to 230 V. 交流測試逐步增高電壓至230VDirect current (DC): Step by step increasing the voltage up to 500 V (J20B) respect. 1000 V (J20AA). -直流測試逐步增高電

40、壓至500V（J20B）、1000V（J20AA）Acceptable values for current flow see S243012-1Ramp: The voltage is hold 5,6 sec. automatically, before increasing the voltage.Management Meeting Schaeffler Gruppe上海電科所上海電科所 測試方法測試方法 GB T1410-2006材料體積電阻率和表面電阻率試驗(yàn)方法材料體積電阻率和表面電阻率試驗(yàn)方法Management Meeting Schaeffler Gruppe適用于滾動(dòng)軸承的

41、專業(yè)分析軟件Bearinx滾動(dòng)軸承計(jì)算軟件Management Meeting Schaeffler GruppeBEARINX 軟件功能簡介軟件功能簡介 滾動(dòng)軸承 應(yīng)用無處不在Management Meeting Schaeffler GruppeBEARINX 軟件功能簡介軟件功能簡介 滾動(dòng)軸承 應(yīng)用無處不在Calculation of an individual contact單體接觸計(jì)算Calculation of individual bearing單個(gè)軸承計(jì)算Calculation of shaft systems軸系計(jì)算Calculation of complete system

42、s 整體結(jié)構(gòu)計(jì)算 - Transmissions 齒輪箱 - Linear guidance systems 直線驅(qū)動(dòng)系統(tǒng)Modular program structure 程序模塊結(jié)構(gòu)程序模塊結(jié)構(gòu)BEARINX 軟件功能簡介軟件功能簡介 滾動(dòng)軸承 應(yīng)用無處不在Management Meeting Schaeffler Gruppe載荷類型載荷類型,大小大小精度精度P6?及游隙及游隙C3? 運(yùn)行溫度運(yùn)行溫度Installation 安裝安裝- layout 配置配置- tolerances 公差公差Lubrication 潤滑潤滑- grease type 潤滑脂類型潤滑脂類型計(jì)算要求計(jì)算要求

43、Questions for choose a bearingwhich occurat the application department !選擇電機(jī)軸承需要考慮的問題選擇電機(jī)軸承需要考慮的問題!Life time 壽命壽命-min. required 要求最小壽命要求最小壽命BEARINX 軟件功能簡介軟件功能簡介 電機(jī)軸承計(jì)算電機(jī)結(jié)構(gòu)簡圖電機(jī)結(jié)構(gòu)簡圖,包含基本尺寸包含基本尺寸 振動(dòng)振動(dòng)Insulation / Hybrids絕緣絕緣 / 混合軸承混合軸承Management Meeting Schaeffler Gruppe載荷振動(dòng)溫度壽命要求潤滑脂軸承類型公差配合BEARINX 軟件功

44、能簡介軟件功能簡介 電機(jī)軸承計(jì)算 電機(jī)軸承計(jì)算數(shù)據(jù)表Effects 效果效果Calculation 計(jì)算計(jì)算Design Parameters 設(shè)計(jì)參數(shù)設(shè)計(jì)參數(shù) the following parameters are calculated for the bearingsdesign 軸承設(shè)計(jì)需要考慮以下參數(shù)軸承設(shè)計(jì)需要考慮以下參數(shù) Lifetime Lh10 incl. Contact Pressure 考慮接觸壓強(qiáng)的疲勞壽命考慮接觸壓強(qiáng)的疲勞壽命Lh10 Viscosity Ratio 粘度系數(shù)粘度系數(shù) tight fit / close sliding fit transmittabl

45、e forces, moments過盈配合過盈配合 / 間隙配合間隙配合 傳動(dòng)力，傳動(dòng)力， 力矩力矩 O.K. for the application or preloaded 可以應(yīng)用或施加預(yù)載可以應(yīng)用或施加預(yù)載complete support of the contact ellipse ks 5/6, better 1,0接觸橢圓全部支撐接觸橢圓全部支撐 ks 5/6, 最好等于1,0based on rolling contact fatigue and operaring clearance,considering the tilting in shaft systems.基于滾動(dòng)接

46、觸疲勞和工作游隙，考慮軸系傾斜基于滾動(dòng)接觸疲勞和工作游隙，考慮軸系傾斜 boundary friction, mixed friction, viscous friction application department should be consulted邊界摩擦，混合摩擦，粘性摩擦邊界摩擦，混合摩擦，粘性摩擦請聯(lián)系應(yīng)用工程部請聯(lián)系應(yīng)用工程部under consideration of operating temperature and material of components需要考慮工作溫度和配合件材需要考慮工作溫度和配合件材料料Basics of Application Engin

47、eering 軸承應(yīng)用基礎(chǔ)軸承應(yīng)用基礎(chǔ)Bearing Types and Computation 軸承種類和應(yīng)用軸承種類和應(yīng)用 Operating Clearance 工作游隙工作游隙 Pressfit 壓入壓入 ks Factor 壓力橢圓壓力橢圓系數(shù)系數(shù)Management Meeting Schaeffler GruppeBEARINX 軟件功能簡介軟件功能簡介 電機(jī)軸承計(jì)算 BearinX電機(jī)軸承模型Management Meeting Schaeffler GruppeBEARINX 軟件功能簡介軟件功能簡介 電機(jī)軸承計(jì)算 三種典型壽命計(jì)算公式的比較Management Meetin

48、g Schaeffler Gruppe名義壽命計(jì)算公式L10(kf)修正的壽命計(jì)算公式LnmrLnmr = f (aDIN , L10)Lnmr (Modified rating life due to current contact pressure acc. to DIN ISO 281, Suppl. 4)- 考慮實(shí)際接觸應(yīng)力- 考慮軸承傾斜- 考慮軸承游隙變化- 考慮滾子形狀,滾道形狀等 - 考慮潤滑方式與污染狀況- 符合標(biāo)準(zhǔn)ISO281 sup4 L10(kf) = ( C/P )pFN 名義方向的載荷NFFkPL10 = ( C/P )ppconditionsreal10condi

49、tions.ref,N10F)(L)F(Lk - 考慮各個(gè)方向載荷- 考慮軸承傾斜與扭矩 - 考慮軸承游隙變化- 考慮滾子形狀,滾道形狀等 樣本壽命計(jì)算公式 : Lxy- 復(fù)合載荷 - 不考慮傾斜- 不考慮潤滑與污染狀況- 符合標(biāo)準(zhǔn)ISO281LXY = ( C/P )pBEARINX 軟件功能簡介軟件功能簡介 電機(jī)軸承計(jì)算 三種典型壽命計(jì)算公式的比較Management Meeting Schaeffler GruppeBEARINX 軟件功能簡介軟件功能簡介 電機(jī)軸承計(jì)算 公差配合的確定Management Meeting Schaeffler GruppeBEARINX 軟件功能簡介軟件

50、功能簡介 電機(jī)軸承計(jì)算 軸承數(shù)據(jù)庫Management Meeting Schaeffler GruppeBEARINX 軟件功能簡介軟件功能簡介 電機(jī)軸承計(jì)算 預(yù)緊力的設(shè)定Management Meeting Schaeffler Gruppe電機(jī)軸系 轉(zhuǎn)軸撓曲 彎曲應(yīng)力單個(gè)軸承分析 內(nèi)部載荷分布 靜載荷安全系數(shù)以及軸承壽命 工作游隙以及接觸應(yīng)力 潤滑脂系數(shù)電機(jī) 建立電機(jī)軸系模型滾動(dòng)接觸 赫茲應(yīng)力分布 熱處理硬度推薦 壓力橢圓分析實(shí)例實(shí)例: 電機(jī)軸承設(shè)計(jì)與計(jì)算電機(jī)軸承設(shè)計(jì)與計(jì)算 從系統(tǒng)到單體接觸的一體化詳細(xì)分析Customers datas and requierments 客戶數(shù)據(jù)和要求客戶數(shù)據(jù)和要求L/2L/2Shaft weight=100kgn=8000rpm62126212Lh10 = min. 50.000hBasics of Application Engineering 電機(jī)應(yīng)用基礎(chǔ)電機(jī)應(yīng)用基礎(chǔ)BearinX Computation BearinX 軟件計(jì)算軟件計(jì)算6212-P636212-P63aan=8.000rpmFShaft=1500NT=