Yintoni naimpompo shaft itywina?
Amatywina e-Shaft athintela ulwelo ukuba lubaleke kwishafu ejikelezayo okanye ephindaphindayo. Oku kubalulekile kuzo zonke iimpompo kwaye kwimeko yeempompo ze-centrifugal iindlela ezininzi zokutywinwa ziya kufumaneka: ukupakishwa, ukutywinwa komlomo, kunye nazo zonke iintlobo zokutywinwa kwemishini- eyodwa, kabini kunye ne-tandem kubandakanya i-cartridge seals. Iimpompo zokufuduka ezijikelezayo ezifana neempompo zegiya kunye neempompo ze-vane ziyafumaneka ngokupakishwa, imilebe kunye nelungiselelo lokutywinwa koomatshini. Iimpompo ezibuyiselayo zenza iingxaki zokutywinwa ezahlukeneyo kwaye ngokuqhelekileyo zixhomekeke kwiimpawu zomlomo okanye ukupakisha. Olunye uyilo, olufana neempompo zemagnethi zokuqhuba, iimpompo ze-diaphragm okanye iimpompo ze-peristaltic, azifuni zitywina zeshaft. Ezi mpompo zibizwa ngokuba 'zingenakutywinwa' ziquka izitywini ezimileyo ukuthintela ukuvuza kolwelo.
Zeziphi ezona ntlobo ziphambili zokutywinwa kwe-shaft shaft?
Ukupakisha
Ukupakisha (okukwabizwa ngokuba yi-shaft packing okanye i-gland packing) iqulethe izinto ezithambileyo, ezihlala ziphothiweyo okanye zenziwe zibe ngamakhonkco. Oku kucinezelwa kwigumbi elijikeleze i-drive shaft ebizwa ngokuba yibhokisi yokuhlohla ukwenza itywina (Umfanekiso 1). Ngokuqhelekileyo, ukunyanzeliswa kusetyenziswa i-axially ekupakisheni kodwa inokusetyenziswa kwakhona nge-radially nge-hydraulic medium.
Ngokwesiko, ukupakishwa kwakusenziwa ngesikhumba, intambo okanye iflakisi kodwa ngoku ngokuqhelekileyo kuqulethe izinto ezingasebenziyo ezifana ne-PTFE eyandisiweyo, igraphite ecinezelweyo, kunye ne-elastomers egranulated. Ukupakishwa kuqoqosho kwaye ngokuqhelekileyo kusetyenziselwa ulwelo olungqindilili, ekunzima ukutywina olunje ngeereyini, itela okanye izinto zokuncamathelisa. Nangona kunjalo, yindlela yokutywina engalunganga yolwelo olucekethekileyo, ngakumbi kuxinzelelo oluphezulu. Ukupakisha akufane kwenzeke ngentlekele, kwaye kunokutshintshwa ngokukhawuleza ngexesha lokuvalwa okucwangcisiweyo.
Ukupakisha amatywina afuna ukuthambisa ukunqanda ukwakheka kobushushu obukhukhulayo. Oku kudla ngokubonelelwa ngolwelo olumponthiweyo ngokwalo oluthanda ukuvuza kancinci ngezinto zokupakisha. Oku kunokuba bubumdaka kwaye kwimeko yolwelo oludlayo, olunokutsha, okanye oluyityhefu kaninzi alumkelekanga. Kwezi meko kunokusetyenziswa isithambiso sangaphandle esikhuselekileyo. Ukupakisha akufanelekanga kwiimpompo zokutywina ezisetyenziselwa ulwelo oluqulethe iinxalenye ezixubileyo. Izinto eziqinileyo zinokuthi zifakwe kwizinto zokupakisha kwaye oku kungonakalisa i-shaft yempompo okanye udonga lwebhokisi yokupakisha.
Ukutywinwa komlomo
IiLip Seals, ezikwaziwa ngokuba zizitywina ze-radial shaft, zizinto nje ezijikelezayo ze-elastomeric ezigcinwe kwindawo yazo ngokuchasene ne-drive shaft yindlu yangaphandle eqinile (Umfanekiso 2). Itywina livela kunxibelelwano olukhubekisayo phakathi 'komlebe' kunye neshaft kwaye oku kuye kuqiniswe sisithombo. Izitywina zomlomo zixhaphakile kulo lonke ishishini loxinzelelo lwehydraulic kwaye zifumaneka kwiimpompo, iimotor ezisebenza ngoxinzelelo lwendalo, kunye nee-actuator. Bahlala bebonelela ngesesibini, isitywina esigciniweyo sezinye iinkqubo zokutywina ezinje ngoomatshini Izitywina zoMlebe zithintelwa ngokubanzi kuxinzelelo oluphantsi kwaye zikwahlwempuzekile kulwelo olubhityileyo, olungathanjiswanga. Iinkqubo ezininzi zokutywinwa komlomo zisetyenziswe ngempumelelo ngokuchasene neentlobo ezahlukeneyo zolwelo lwe-viscous, olungena-abrasive. Ukutywinwa komlomo akufanelanga ukusetyenziswa kunye naluphi na ulwelo oluluqilima okanye ulwelo oluqulethe izinto eziqinileyo njengoko zichaphazeleka lula kwaye nawuphi na umonakalo omncinci unokukhokelela ekungaphumelelini.
Iimpawu zoomatshini
Amatywina oomatshini abandakanya iperi enye okanye ngaphezulu zobuso obucwebezelayo, obukhazimlisiweyo obuphezulu, obunye obumileyo kwizindlu kunye nolunye olujikelezayo, oluqhagamshelwe kwishaft yokuqhuba (Umfanekiso 3). Ubuso bufuna ukuthambisa, mhlawumbi ngolwelo olumponthiweyo ngokwalo okanye ngolwelo lwesithintelo. Enyanisweni, ubuso betywina bunxibelelana kuphela xa umpompo uphumle. Ngexesha lokusetyenziswa, ulwelo lokuthambisa lubonelela ngefilimu encinci, i-hydrodynamic phakathi kobuso obuchasayo bokutywina, ukunciphisa ukunxiba kunye nokunceda ukutshatyalaliswa kobushushu.
Iimpawu zeMechanical ziyakwazi ukuphatha uluhlu olubanzi lwamanzi, i-viscosities, uxinzelelo kunye namaqondo obushushu. Nangona kunjalo, isitywina esisebenza ngoomatshini akufuneki somiswe. Inzuzo ephambili yeenkqubo zokutywinwa komatshini kukuba i-drive shaft kunye ne-casing ayiyonxalenye yendlela yokutywina (njengoko kunjalo ngokupakisha kunye nokutywinwa komlomo) kwaye ngoko ke azikho phantsi kokugqoka.
Ukutywinwa kabini
Ukutywinwa kabini kusebenzisa amatywina amabini abekwe ngasemva ngasemva (Umfanekiso 4). Isithuba esingaphakathi kwiiseti ezimbini zobuso betywina sinokunyanzeliswa ngoxinzelelo lwe-hydraulically kunye nolwelo lwesithintelo ukuze ifilimu ebusweni botywino obuyimfuneko ekuthanjisweni iya kuba lulwelo lwesithintelo kwaye ingeyiyo into emponjwayo. Ulwelo lwesithintelo kufuneka kwakhona luhambelane ne-pumped medium. Ukutywinwa kabini kunzima ukusebenza ngenxa yesidingo soxinzelelo kwaye ngokuqhelekileyo kusetyenziswa kuphela xa kuyimfuneko ukukhusela abasebenzi, amalungu angaphandle kunye nokusingqongileyo kulwelo oluyingozi, oluyityhefu okanye olunokutsha.
Iimpawu zeTandem
Amatywina eTandem ayafana namatywina aphindwe kabini kodwa iiseti ezimbini zoomatshini bezitywina zijongana kwicala elinye kunokubuyela umva. Kuphela sisitywina esikwicala lemveliso elijikeleza kulwelo olumponthiweyo kodwa ukuphuma kwamanzi ngaphaya kobuso betywina ekugqibeleni kungcolise isithambiso sesithintelo. Oku kuneziphumo kwi-atmospheric side seal kunye nokusingqongileyo.
Iimpawu zeCartridge
I-cartridge seal yipakethe ehlanganiswe kwangaphambili yamacandelo okutywinwa koomatshini. Ukwakhiwa kweCartridge kuphelisa imiba yokufakela njengesidingo sokulinganisa nokuseta ukunyanzeliswa kwentwasahlobo. Ubuso betywina bukwakhuselwe kumonakalo ngexesha lofakelo. Kuyilo, i-cartridge seal inokuba yinto enye, kabini okanye i-tandem equlethwe ngaphakathi kwedlala kwaye yakhelwe kwi-sleeve.
Iimpawu zokuthintela igesi.
Ezi zizihlalo ezimbini ezinesitayile sekhatriji ezinobuso obuyilelwe ukucinezelwa kusetyenziswa irhasi engasebenziyo njengesithintelo, endaweni yolwelo lokuthambisa lwesintu. Ubuso betywina bunokwahlulwa okanye bubanjwe kuqhagamshelwano olukhululekileyo ngexesha lokusebenza ngokulungelelanisa uxinzelelo lwegesi. Isixa esincinci serhasi sinokubalekela kwimveliso nakwiatmosfera.
Isishwankathelo
Ukutywinwa kwe-shaft kunqanda ulwelo ukuba luphume kwishafu ejikelezayo okanye ephindaphindanayo yempompo. Rhoqo kukho iindlela ezininzi zokutywina eziya kufumaneka: ukupakishwa, ukutywinwa komlomo, kunye neentlobo ezahlukeneyo zokutywinwa koomatshini- okukodwa, kabini kunye ne-tandem kubandakanya i-cartridge seals.
Ixesha lokuposa: May-18-2023