Dab tsi yog sealed bearing?
Lub thiaj li hu ua seal bearing yog plua plav-pov thawj bearing, yog li ntawd cov kabmob yog sealing kom tswj tau qhov kev ua haujlwm du thiab kev ua haujlwm ib puag ncig ntawm cov kabmob, muab kev ua si tag nrho rau kev ua haujlwm ntawm cov kabmob, ncua kev pabcuam lub neej ntawm cov kabmob. , thiab muaj qhov tsim nyog sealing ntawm cov kabmob dov kom tsis txhob xau thiab xau thiab cov xau thiab cov xau thiab tus neeg sawv cev smoothing. Kev cuam tshuam ntawm plua plav, dej lossis lwm yam av. Qhov no yog qhov zoo rau kev tiv thaiv bearings.
Bearing ntom seal hom:
Raws li kev nkag siab ntxaws ntawm Tuam Tshoj Bearing Network, dov bearing yog ib hom kev ua neej nyob txhua hnub. Lub sealing ntaus qauv ntawm dov bearings feem ntau yog muab faib ua kev sib cuag sealing thiab tsis sib cuag sealing.
Tsis sib cuag sealing ntawm cov bearings
Bearing non-contact sealing yog ib txoj kev sib khi ntawm kev tsim cov khoob me me ntawm cov kabmob thiab cov kabmob sab npog. Lub sealing qauv tsis hu rau lub axis, yog li tsis muaj kev sib txhuam los yog hnav, thiab nws tsim nyog rau kev sib hloov ceev. Txhawm rau ntxiv dag zog rau cov nyhuv sealing, koj tuaj yeem sau cov roj ntawm qhov sib txawv. Cov kabmob uas tsis sib cuag yog feem ntau: qhov sib txawv sealing, roj groove sealing, maze sealing, roj-shaking nruj seal, thiab lwm yam.
1. Gap sealing
Lub qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Qhov sib txawv ntawm lub vojvoog yog 01-0.3mm. Qhov ntev ntawm qhov khoob, qhov me me ntawm sealing nyhuv. Txhawm rau txhim kho cov nyhuv sealing, ntau sab-los ntawm-sab grooves tuaj yeem qhib rau hauv cov kabmob npog thiab ntim cov roj hauv qhov zawj. Yog tias nws yog siv rau lubricating roj sealing, xov zawj tuaj yeem nqa tawm ntawm lub qhov phab ntsa ntawm cov kabmob npog. Cov roj nplua nyeem uas xav kom xau tawm yog xa rov qab mus rau cov kabmob sab hauv sab hauv sab hauv sab hauv cov kabmob vim muaj kev cuam tshuam kev thauj mus los. Qhov tseem ceeb
2. Roj tank sealing
Cov roj groove foob yog ua tiav nrog lub nplhaib roj zawj ntawm tus tub xeeb ntxwv ntawm cov kab noj hniav sab hauv ntawm cov kabmob foob, thiab nws cov radial faib yog faib nrog cov roj qhia grooves. Txhua lub nplhaib roj ntsuas yog txuas nrog lub tank roj thiab lub tank roj. Txiav txim siab. Cov cuab yeej yooj yim. Lub sealing npog tsis ntev dhau lawm, qhov chaw ua haujlwm me me, thiab cov qauv qhov chaw tuaj yeem daws tau zoo dua.
3. Labyrinth foob
Lub hauv paus ntsiab lus ntawm lub foob no yog tsim txoj kev khiav nrog cov kua dej zoo heev ntawm lub foob. Structurally tsim ib tug me me qhov sib txawv ntawm qhov zoo li qub qhov chaw thiab lub rotor los ua ib tug "maze". Yog hais tias "maze" yog radial, axial loj yog compact, tab sis lub radial loj yog loj. Yog hais tias "maze" yog axial, lub radial loj yog compact, tab sis cov kabmob npog yuav tsum raug txiav, thiab axial sib txawv yuav tsum loj dua, thiaj li tsis mus tuag vim thermal deformation ntawm lub axis. Lub pob zeb pob zeb yog qhov txhim khu kev qha txawm tias nws yog lubricating roj thiab kab civliv, thiab qhov siab dua qhov ceev, cov nyhuv zoo dua.
4. Tshem tawm cov roj nplhaib ntom ntom
Thaum cov roj lubricated, cov roj uas tuaj yeem xau raws cov kabmob npog los ntawm lub zog centrifugal ntawm cov roj pas nrig ntawm cov kabmob tuaj yeem rov qab mus rau cov kabmob lossis cov roj pas dej los ntawm cov roj rov qab qhov. Cov nyhuv sealing yog heev txhim khu kev qha. Rau lub zog centrifugal, lub voj voog ceev ntawm lub caj dab yuav tsum tsis pub tsawg dua 5-6m / s. Cov roj rings kuj feem ntau siv rau lubricating roj thiab lubricating roj nyob rau hauv lub thawv nyob rau hauv kev sib cais.
Bearing tiv tauj - hom sealing
Kev sib cuag foob yog txoj kev sib khi ntawm qhov kawg lossis daim di ncauj hu axis ntawm sulfide hluavtaws roj hmab ntawm cov pob txha steel. Nws lub foob zoo dua li cov foob tsis sib cuag, tab sis qhov kev sib txhuam yog qhov loj thiab qhov kub thiab txias yog qhov siab. Nyob rau hauv qhov chaw ntawm lub lubricating ncej thiab sealing nplhaib, tib lub lubricant feem ntau yog siv raws li cov bearings. Lub ntsiab kev sib txuas yog: muaj lub nplhaib foob, tawv lub tais foob, foob lub nplhaib foob, pob txha sealing, sealing nplhaib foob, thiab lwm yam.
1. Freshly foob
Qhib lub trapezoidal zawj ntawm cov kabmob npog, tso cov kev xav zoo rau ntawm qhov chaw nyob rau hauv lub trapezoidal groove kom tiv tauj lub axis, los yog siv lub hau npog kom nruj, kom lub nplhaib xav tau compressed thiab radial siab tuav ntawm lub ncej, kom ua tiav lub hom phiaj ntawm sealing. Cov qauv sealing no yooj yim, tus nqi qis, tab sis cov nyhuv sealing tsis zoo, thiab nws tsis tuaj yeem hloov kho. Kev hnav yog hnyav heev. Nws yog tsuas yog siv rau lub voj voog ceev ntawm lub caj dab v<4-5m/s.
2. Tawv lub tais sealing
Muab lub tais ntim cov tawv nqaij (lub tais tawv yog ua los ntawm cov roj thiab lwm yam khoom xws li roj) rau hauv lub hau npog) ncaj qha rau ntawm ncej. Txhawm rau txhim kho cov nyhuv sealing, lub nplhaib puab ntawm lub tais tawv yog nias nrog lub nplhaib kauv lub caij nplooj ntoos hlav, kom lub nplhaib puab ntawm lub tais tawv muaj kev sib koom tes nruj nrog cov axis. ~ 7m / s roj moisturizes los yog lubricating roj lubricating. Qhov tsis zoo yog tias daim tawv nqaij lub tais roj hmab yog ib qho yooj yim rau tawv thiab hnav yooj yim. Thaum siv nws, xyuam xim rau cov kev taw qhia ntawm lub sealing pob ntawm lub tais tawv. Yog tias koj tiv thaiv cov roj to, cov pob ntawm cov tawv dab teg yuav tsum nyob hauv cov bearings. Yog tias cov impurities yuav tsum tau tiv thaiv, cov pob ntawm cov tawv nqaij yuav tsum yog cov bearings. Qhov tseem ceeb
3. Lub nplhaib sealing
Sealing rings are made of leather, plastic or oil -resistant rubber, which can be made into different section forms as needed. The 0 -shaped sealing section is round, relying on its own elasticity to press on the axis, the structure is simple, and the disassembly is convenient. The commonly used sealing rings of J -shaped and U -shaped sections, they all have lip -shaped structures. The direction of the sealing lips should be facing the sealing part, which is similar to the direction of the bumpy edge of the leather bowl. When the temperature is high and the speed is high, it is best to seal the lip mouth and install it out of the bearing. The sealing circle sealing effect is better than the felt circle, which can be used for sealing of fat and oily bones. In order to improve the sealing effect, the connection between the neck and the sealing chart is best on the surface hardening (HRC>40) thiab polished los yog polished los txhim kho qhov hnav tsis kam.
4. Skeleton sealing
Lub cev pob txha foob peb feem ntau hais yog kev txhim kho ntawm tawv lub tais foob. Txhawm rau txhim kho lub zog tag nrho ntawm lub tais tawv tawv, ntu yog L-shaped thiab tag nrho cov hlau hauv ob sab phlu hauv cov roj-resistant roj hmab. Lub neej, qhov sealing no yooj yim thiab zoo rau kev siv. Nws yog feem ntau haum rau puag ncig-lub lim tiam ceev V<7M/s of the neck. At present, most of the centrifugal pump bearing boxes are sealing of the skeleton.
5.
Qhov no yog lub nplhaib-zoo li lub foob nrog qhov sib txawv. Muab tso rau hauv lub nplhaib zawj ntawm lub tes tsho. Lub tes tsho rotates nrog lub ncej. Nyob rau ntawm phab ntsa ntawm lub puab lub qhov, koj tuaj yeem ua lub luag haujlwm sealing, uas yog qhov nyuaj dua.
Kev xaiv ntawm bearing seal qauv
Thaum xaiv cov qauv kev sib khi tsis pub lwm tus paub, cov kev xav tseem ceeb yog: roj nplua nyeem, uas yog, roj nplua nyeem lossis roj lubricating; sealing qhov chaw kab ceev; installation yuam kev ntawm lub ncej; installation qhov chaw loj thiab tus nqi.
Thaum xaiv cov qauv kev sib khi, raws li kev ua haujlwm sib txawv, koj tuaj yeem siv cov qauv foob ib leeg, lossis kev sib xyaw ua ke ntawm kev sib xyaw ua ke, xws li cov qauv sib xyaw ua ke ntawm cov pob zeb sib txuas ntxiv rau cov roj groove foob ntxiv rau cov roj nplhaib. Dual function ntawm invading.