行走馬達(dá)浮動(dòng)油封

1、浮動(dòng)油封浮動(dòng)油封常用于工程機(jī)械行走部分的行星減速器，對(duì)該部件端面進(jìn)行動(dòng)態(tài)密封由于其可靠性高，近幾年也用作挖泥船斗輪輸出軸的動(dòng)態(tài)密封此類密封屬于機(jī)械密封，一般由鐵合金材料的浮環(huán)及配套的丁腈橡膠0形密封圈組成浮環(huán)成對(duì)使用，一個(gè)隨旋轉(zhuǎn)部件轉(zhuǎn)動(dòng)，一個(gè)相對(duì)靜止.浮動(dòng)油封的密封原理是：兩個(gè)浮環(huán)靠0形密封圈受軸向壓縮 后的變形，產(chǎn)生對(duì)浮環(huán)密封端面的壓緊力 隨著密封端面的均勻磨損，這種由0形密封圈 儲(chǔ)存的彈性能量逐步釋放，從而起到軸向補(bǔ)償作用在設(shè)定的時(shí)間內(nèi)密封面能保持良好 的貼合,一般密封壽命在 4000h以上浮動(dòng)油封是一種特殊型式的機(jī)械密封，是為適應(yīng)惡劣的工作環(huán)境而發(fā)展起來(lái)的一 種緊湊型的機(jī)械密圭寸方式，它

2、具有抗污染能力強(qiáng)，耐磨,耐沖擊，工作可靠，端面磨損自 動(dòng)補(bǔ)償，結(jié)構(gòu)簡(jiǎn)單等優(yōu)點(diǎn)，在工程機(jī)械產(chǎn)品上應(yīng)用最為普遍，在各種輸送機(jī)，砂處理設(shè)備混凝土設(shè)備上也應(yīng)用廣泛目前在煤礦機(jī)械上主要用于刮板輸送機(jī)的鏈輪，減速器以及采煤機(jī)的傳動(dòng)機(jī)構(gòu)和搖臂，滾筒等處.此類密封產(chǎn)品在工程機(jī)械設(shè)備應(yīng)用較為普遍和成 熟,但在其他行業(yè)由于用量少，缺乏基礎(chǔ)理論數(shù)據(jù)和使用經(jīng)驗(yàn) ，使用過(guò)程中失效現(xiàn)象較 為普遍,難以達(dá)到預(yù)期效果.性質(zhì)：非接觸式密封的一種。結(jié)構(gòu)特點(diǎn)及其密封原理如圖所示，浮環(huán)與轉(zhuǎn)動(dòng)軸之 間保持一定的間隙，可以自由浮動(dòng)，但不能與轉(zhuǎn)軸一起轉(zhuǎn)動(dòng)，只能作徑向滑移浮動(dòng)， 并在重力作用下與軸中心保持一定的偏心。當(dāng)轉(zhuǎn)軸轉(zhuǎn)動(dòng)時(shí)，從浮動(dòng)油封

3、外界輸入密封液（常采用油液）在轉(zhuǎn)軸與浮環(huán)的間隙處形成油膜。因受軸轉(zhuǎn)動(dòng)時(shí)產(chǎn)生油楔動(dòng)力的作用，使油膜內(nèi)保有一定的油膜壓力，使浮環(huán)能自動(dòng)維持與軸中心“對(duì) 中”，從而使間隙量大大減小，有效地實(shí)現(xiàn)了對(duì)流體介質(zhì)泄漏的密封。其優(yōu)點(diǎn)是密封性能穩(wěn)定，可靠，壽命長(zhǎng)；密封的工作參數(shù)范圍較寬（工作壓力可達(dá)30兆帕，工作溫度為-100200C ）;特別適合對(duì)離心式壓縮機(jī)中氣體介質(zhì)的密封，還可實(shí)現(xiàn)對(duì)大氣環(huán) 境不泄漏，適宜易燃 、易爆、有毒、貴重氣體介質(zhì)的密封。缺點(diǎn)是浮環(huán)加工要求高， 需要專門的密封油系統(tǒng)；存在較多的內(nèi)部泄漏，但本質(zhì)上仍屬內(nèi)部循環(huán)性質(zhì)的泄漏， 這與機(jī)械密封的泄漏有質(zhì)的區(qū)別。廣泛應(yīng)用于離心式壓縮機(jī)的動(dòng)密封品牌

4、：NOK普通型浮動(dòng)油封11件號(hào)P/N外徑D1內(nèi)徑D2厚度H膠圈OringJH0220312220JH030542.530.517.532*5.6JH0340453414JH0380503820.641*6JH0390503914JH0380B513820.441*6JH0400524020JH0480584814.4JH045058452148.5*6JH043058432448*7JH0450B594526.8JH046059462047.5*6.5JH0460B604624JH0480B62482552*7.6JH0480C62482652*7.6JH0510655123JH0510B65

5、.65126.855.5*6JH054068542456*7JH05557055.52258*7.5JH056070562660.8*7.6JH0610736117.664*5.2JH05757457.525JH0600746020.6JH0575B7557.525JH0580755827JH064078642567*8JH06357963.52566*8JH067080672068.5*6.5JH05858058.527JH063080.5632666*8JH0635B82.563.53266*9.5JH069084692472*8JH070084702072.5*6.5JH07108471

6、2072.5*6.5JH067586.567.53271*9.5JH074086.57422.5JH0700B877021JH077587.677.513.678*4.3JH073588.573.520.4JH068089682475*8JH0690B89692475*8JH0700C89702475*8JH0700D90702875*9JH0700E90702975*9JH072091.47236.4JH073092733276*9.5JH07259272.535.6JH079592.579.52081*6.5JH074693.374.62978*9.5JH075094752978*9.5J

7、H077094772978*9.5JH0750B94.57532JH0750C97752682*8JH081098812882*8JH0850998520JH0800100803085*9.3JH0830102832887*8.5JH082510282.535.6JH0900105902693*6.3JH0940106.59423JH0965106.696.513.698*4.6JH0880108882493*8JH088810888.7529.4JH0900B109903293*9.5JH0920109922298*7JH0905109.590.53293*9.5JH0904109.590.

8、435.6JH0910110913293*9.5JH1000112.410032JH09501149532JH104011710422JH1000B11810031JH102011810227JH1000C11910032103*9.5JH098511998.529104*8.5JH0985B12098.529104*8.5JH09901209928105*8.5JH101012010129JH1040B12110422JH103012210332JH1040C122.510422.5JH1030B122.510332JH1040D12510428110*8.5JH10701251072411

9、0*8.5JH110012711032110*9JH1100B12811032113*9.2JH111012811122JH1130131.511329.4115*9.5JH109013210931115*9.5JH10909.5JH1250136.512532JH114013711431JH115013711531JH116013811632123.5*9.5JH117013811732123.5*9.5JH120013912032123.5*9.5JH1265139126.526.8JH1185139.5118.528124*8.5JH121014012130JH

10、1200B14012032JH11705*8.4JH11708.7JH119014011928JH1200C14112032JH124014112422JH127014112725.4130*6.3JH12708.3JH1200D14212038JH125014412532128.5*9.5JH126014612632130*9.5JH12709.5JH130015013032JH1300B15113033JH1300C15213032JH1300D15213038.5JH137015313

11、730JH140015514025JH1355154.5135.528139*8.3JH143015714325.4142*6.2JH14306.3JH1430C16014327145.7*8.3JH1400B16014033JH147016714728154*8.5JH150016715028154*8.5JH146016814634150*10JH1460B16814638JH154016815427150*6.5JH1540B16815425.4154*6.3JH1540C16915422158*7JH148017014831155*9.3JH1540D1701

12、5421158*7JH15009.3JH1520171.515232JH1530171.515328157*8.3JH14603*12.7JH150011.2JH1540E173.515432JH1460D17514638JH157017715738JH1540F17815434JH1595180159.532166*9JH165018116527170*7JH164018916430JH169018916932JH1725190172.525.4JH174019017425.4JH163019116338167*1

13、2.7JH1630B19116346167*12.7JH1650B19416538173*10.5JH160019416038173*10.5JH172019417232175*9.5JH176019517628182*8.3JH1780197.417821.4JH1780B19917832184*9.5JH177020017730184*9.5JH1780C20017838183*12.4JH186020318632JH1860B20318625.4184*6.25JH182021018238184*12.7JH1820B21018246184*12.7JH192021519233194.5

14、*10.3JH190021519036198*10JH1900B21619036198*10JH188021818838JH1880B22018840JH2010222.320126.5208*6.2JH2087222.8208.726208*6.2JH205022720530210*9.5JH2000228.520038205.5*13JH209023420942215*13JH2200239.522032224*9.5JH2200B24022026JH218024021837JH210024021041JH2200B241.422025226*7.7JH217024421737JH2200

15、C24522036229*10JH223024622336229*10JH2235251.5223.538225*12.7JH2235B251.5223.546225*12.7JH225025222538225*11JH2255253225.540.8JH235025823534242*11JH231025923136JH2316259.6231.638JH230026023036242*11JH2350B26023536240*10JH238026123832245*9.5JH2400262.824038243*12JH2400B26724042248.5*12JH2390268239402

16、48.5*12JH240526824038248.5*12JH2500B27025030JH250027625044255*12.7JH254028025436260*12JH252028025238255*12.7JH260028826040266*12JH2615288.5261.540266*12JH265029226538265*12.7JH2650B292.826538265*12.7JH2650C292.826546265*12.7JH2650D29426538265*12.7JH272030027240276*12.7?JH275030327538276*12.7?JH28293

17、10.8282.938278*12.7JH3000B32530038305*12.7JH301032830138305*12.7JH295032829540305*12.7JH298032829840.8305*12.7JH300032830040305*12.7JH3000C33030040JH304033430438310*12.5JH309033730940JH318034031838315*12.7JH3180B34131838315*12.7JH3180C34631838315*12.7JH3180D34631840320*12.7JH3190346.531946315*12.7JH

18、320034832040320*12.7JH340036834040345*12JH3400B36834040.8345*12JH3400C37034040345*12JH350037535038355*12.7JH355037535538355*12.7JH366039436638360*12.7JH3660B39436640360*12.7JH3660C39436646JH3660D39436648JH370039837038370*12.7JH3700B40037040JH3805405380.540378*12JH388041538838385*12.7JH3880B416388383

19、85*12.7?JH3880C41738838385*12.7?JH420045042042JH4285454428.537420*12.7JH424045442442420*12.7JH429045742938420*12.7JH4300459.243038420*12.7?JH450047745044JH4500B48045050154*16JH455048345544450*13JH457049245738JH465049546543.6460*12.7JH4650B497.246543.6460*12.7JH470050047050474*16JH472050047250474*16JH500052750043.6502*12.7JH5055533.4505.544493*12.7JH507054750760510*18JH530056053050530*16JH5380566.853843.6535*12.7JH528057052842JH555059055542550*13.5JH559059055950560*16JH576060857