Kulephera kwa Chisindikizo cha Makina kapena Kulephera kwa Bearing? Momwe Mungadziwire Mwachangu

Kulephera kwa Chisindikizo cha Makina vs Kulephera kwa Bearing

Mu zipangizo zozungulira monga mapampu a centrifugal, ma compressor, ndi ma agitator a mafakitale, malire pakati pakulephera kwa chisindikizo cha makinandipo kulephera kwa bearing nthawi zambiri kumasokonekera chifukwa cha zizindikiro zolumikizana. Zigawo zonse ziwiri zimakhala ndi shaft yofanana ndipo zimagwira ntchito pafupi, zomwe zikutanthauza kuti kuwonongeka kwa chimodzi nthawi zambiri kumathandizira kuwonongeka kwa china. Kwa mainjiniya odalirika ndi akatswiri okonza, kuzindikira chomwe chimayambitsa kutentha kwambiri, kugwedezeka kosazolowereka, kapena kugwiritsa ntchito mphamvu molakwika ndi vuto lalikulu lozindikira.

Kuzindikira zolakwika izi kumabweretsa kukonza kosagwira ntchito, kugwetsa mobwerezabwereza, komanso kutseka kwa nthawi yayitali kwa ntchito. M'mafakitale akuluakulu monga kuyeretsa mafuta kapena kupanga mapepala, nthawi yopuma yosakonzedwa ingayambitse ndalama kuyambira $10,000 mpaka kupitirira $50,000 pa ola limodzi. Chifukwa chake, kukhazikitsa njira yowunikira yokhazikika komanso yochokera ku umboni ndikofunikira kuti muzindikire gawo lolephera kuwonongeka kwachiwiri kusanachitike.

Chifukwa chiyani matenda ofulumira amateteza nthawi yogwira ntchito

Cholinga chachikulu chodziwira matenda mwachangu ndikuletsa njira zolephera kufalikira zomwe zimagwirizana ndi makina ozungulira. Chisindikizo cha makina ndi chogwirira chimakhalapo muubwenzi wa makina ogwirizana; chogwiriracho chiyenera kusunga kukhazikika kwa rotor kuti nkhope za chogwiriracho zizitha kuyenda bwino, pomwe chogwiriracho chiyenera kukhala ndi madzi oyenda kuti chisaipitse makina olowetsa mafuta.

Pamene bearing ikuyamba kuphulika kapena kutaya malo ake amkati, imalola kuti shaft ipasuke kwambiri. Ngati kuthamanga kwa radial kupitirira zomwe zimaloledwa ndi makina osindikizira—nthawi zambiri zimakhala zolimba ngati mainchesi 0.002 (0.05 mm)—ma O-rings amphamvu adzakwiya, ndipo nkhope zomatira zidzasweka kapena kupatukana, zomwe zimapangitsa kuti madzi azituluka nthawi yomweyo. Mosiyana ndi zimenezi, kulephera kwa makina osindikizira komwe kumathira madzi owononga kapena owononga m'nyumba yosindikizira kudzawononga mofulumira kukhuthala kwa mafuta opaka, zomwe zimapangitsa kuti ma bearing azigwira ntchito pasanathe maola ambiri. Kuzindikira gawo loyambitsa kumayimitsa kuzungulira kowononga kumeneku.

Pamene zizindikiro zoyambirira zimafuna kuthandizidwa mosamala

Si zizindikiro zonse zomwe zimafuna kuzimitsidwa mwadzidzidzi nthawi yomweyo; zina zimafuna kuthetseratu mavuto mwadongosolo pomwe zidazo zili pa intaneti. Kuwonongeka koyambirira nthawi zambiri kumawoneka ngati kusintha pang'ono pakuwunika deta m'malo mowononga kwambiri thupi. Masensa akazindikira kusintha koyambira, magulu ofufuza ayenera kuyambitsa kafukufuku wokonzedwa bwino popanda kusokoneza njirayo mosafunikira.

Mwachitsanzo, kuwonjezeka pang'onopang'ono kwa kutentha kwa nyumba yosungiramo zinthu zomwe zimanyamula mpweya kufika pa 180°F (82°C) kapena kusintha kwa liwiro la kugwedezeka konsekonse kopitirira 0.15 in/s RMS kumasonyeza kuti pali vuto linalake. Pa siteji iyi, akatswiri amatha kuchita mosamala kusanthula kugwedezeka kwamphamvu, kutentha kwa mpweya, ndi kusanthula mafuta. Kuthetsa mavuto molamulidwa kumathandiza malowa kuti ateteze ziwalo zina, kukonza nthawi yoti zizima dala, ndikukonzekera njira zofunikira zotsekera/kutuluka (LOTO), potero kusintha kulephera kosayembekezereka kukhala chochitika chosamalira bwino.

Malire Olephera ndi Kusiyana Kwakukulu

Kuti azindikire molondola vuto la zida, akatswiri ayenera choyamba kumvetsetsa malire ogwirira ntchito ndi zofunikira pa ntchito ya chisindikizo cha makina ndi chogwirira. Ngakhale kuti amagwira ntchito pa chogwirira chomwecho chozungulira, magawo awo a kapangidwe, malire olephera, ndi momwe thupi limayankhira kupsinjika kwa thupi zimasiyana kwambiri.

Chisindikizo chamakina ndichipangizo chosungira madzi molondolaKudalira pa malo obisika a microscopic, pomwe chotengera ndi gawo lotumizira katundu lomwe limapangidwira kuthana ndi mphamvu zolemera zamakaniko. Kuzindikira komwe mphamvu zamadzimadzi zimathera ndi momwe zimagwirira ntchito ndi maziko a kuzindikira molondola kwa malo.

Chisindikizo chamakina chimateteza chiyani?

Chisindikizo cha makina chimagwira ntchito ngati chotchinga chachikulu pakati pa madzi amkati ndi mlengalenga wakunja. Ntchito yake yayikulu imachitika kudzera m'mawonekedwe awiri opukutidwa bwino a chisindikizo—chimodzi chosasuntha ndi china chozungulira—cholumikizidwa pamodzi ndi mphamvu ya masika ndi kupanikizika kwa hydraulic. Nkhope izi sizimauma kwathunthu; zimadalira filimu yamadzimadzi ya microscopic, yomwe nthawi zambiri imakhala pakati pa ma microns 1 ndi 3, kuti ipereke mafuta ndi kuziziritsa.

Popeza chisindikizo cha makina chimagwira ntchito ndi malo otseguka pang'ono otere, chimakhala chovuta kwambiri ndi madzi. Chimateteza chilengedwe ku mankhwala oopsa komanso chimateteza njira yochizira ku kuipitsidwa kwa mpweya. Komabe, kugwira ntchito kwake kumadalira kwathunthu madzi omwe amatsalira mkati mwa kutentha, kupanikizika, ndi nthunzi. Chisindikizo cha makina chikalephera, zotsatira zake zazikulu ndi kutayika kwa kusungidwa, komwe kumawonekera ngati kutuluka kwa madzi, mitambo ya nthunzi, kapena kuchepa kwa kuthamanga kwa madzi otchinga m'makonzedwe awiri a chisindikizo.

Kodi chogwiriracho chimathandizira chiyani

Mabearing apangidwa kuti azithandiza shaft yozungulira, kuyang'anira katundu wa radial (wolunjika ku shaft) ndi katundu wa axial thrust (wofanana ndi shaft). Mwa kusunga rotor pakati pake, mabearing amaonetsetsa kuti ma impellers sakukhudzana ndi ma casings ndipo kuti nkhope zomangira zamakina zikhalebe zolunjika. Mabearing azinthu zozungulira amapangidwa kuti azigwira ntchito nthawi yayitali ya L10, nthawi zambiri amawerengedwa pakati pa maola 25,000 ndi 50,000 ogwira ntchito pansi pa mikhalidwe yoyenera ya mafuta ndi katundu.

Mosiyana ndi zisindikizo, ma bearing sawonekera mwachindunji ku madzi opangidwa. Malo awo amakhala ndi nyumba yodzaza ndi mafuta odzola kapena mafuta. Thanzi la bearing limadalira kusunga filimu yolimbitsa thupi ya elastohydrodynamic pakati pa zinthu zozungulira ndi mipikisano. Bearing ikalephera, imataya mphamvu yake yoletsa shaft, zomwe zimapangitsa kuti makina azikangana kwambiri, kutentha kwambiri kupangike, komanso kugwedezeka kwamphamvu pamene malo amkati akukulirakulira kupitirira malire a kapangidwe.

Zizindikiro zolephera kusindikiza makina poyerekeza ndi zizindikiro za kulephera kwa bere

Kusiyanitsa pakati pa zizindikiro zakuthupi za kulephera kwa chisindikizo ndi kulephera kwa mabenchi kumafuna kugwirizana pakati pa umboni wooneka, womveka, ndi wotentha. Chifukwa chakuti zigawozo zili pafupi, kutentha ndi phokoso zimatha kudutsa mosavuta m'bokosi la chipangizocho, zomwe zimapangitsa kuti kusanthula zizindikiro zosiyana kukhale kovuta.

Matrix yoyerekeza iyi imapereka maziko a zomwe zimayang'aniridwa m'munda. Mwachitsanzo, ngati katswiri awona kutentha komwe kuli pamalopo pa chigoba cha chigoba cholumikizidwa ndi phokoso lophulika, filimu yamadzimadzi pakati pa nkhope ya chigobacho mwina ikutuluka (kung'anima). Mosiyana ndi zimenezi, ngati kutentha kwakhazikika pa nyumba ya chigobacho ndi phokoso lofanana, filimu yothira mafuta ya chigobacho mwina yagwa, zomwe zimayambitsa kukhudzana kwa chitsulo ndi chitsulo.

Njira Yodziwira Matenda a M'munda

Kumasulira kusiyana kwa malingaliro kukhala njira yodziwira matenda m'munda kumafuna njira yowunikira mwadongosolo. Njira yodziwira matenda iyenera kupita patsogolo kuchoka pakuwona zinthu zakunja zomwe sizikusokoneza kupita ku kuyeza zinthu zenizeni, zoyendetsedwa ndi zida. Kudumphira nthawi yomweyo kupita ku zowononga zowonongeka kumawononga umboni wofunikira komanso kumawonjezera nthawi yogwira ntchito kwa zida.

Kuzindikira bwino malo ogwirira ntchito kumagwiritsa ntchito zida zoyezera bwino kuti zijambule zizindikiro za kugwedezeka, kutentha, ndi mphamvu zamadzimadzi. Poyesa zizindikiro, magulu odalirika amatha kuzindikira komwe kulephera kunachokera ndi chidaliro chachikulu asanatsegule flange imodzi.

Ndondomeko yowunikira yankho loyamba

Kuyankha koyamba kumadalira kuwona kwa sensory komwe kumawonjezeredwa ndi zida zoyambira zodziwira matenda. Akatswiri ayenera kuyamba ndi kuwunika kowoneka bwino kwa seal gland, nyumba yonyamulira, ndi baseplate. Muyeso wofunikira ndi kuchuluka kolondola kwa kutayikira; pomwechisindikizo chamakina chathanziikhoza kutulutsa nthunzi yosaoneka, chisindikizo cholephera kugwira ntchito chidzapangitsa kuti madzi awonongeke. Kutuluka kwa madzi kooneka bwino kopitirira madontho 60 pamphindi ndi muyezo wokhazikika womwe umasonyeza kuwonongeka kwakukulu kwa nkhope ya chisindikizo kapena kulephera kwachiwiri kwa O-ring.

Pambuyo pofufuza m'maso, akatswiri ayenera kugwiritsa ntchito infrared (IR) thermography kuti awonetse kuchuluka kwa kutentha kudutsa pa pompu. Dongosolo labwino lidzawonetsa kusintha kosalala kwa kutentha kuchokera kutentha kwa madzi kupita ku bearing housing. Kutentha kwakukulu, kosiyana komwe kumakwera pa seal gland kumasonyeza kukangana, pomwe hotspot yomwe ili pakati pa bearing yopondereza imasonyeza vuto la mafuta kapena kupitirira muyeso. Pomaliza, kuyesa kwa acoustic emission kumatha kuzindikira mafunde amphamvu a ultrasound, kuzindikira kufalikira kwa bearing yaying'ono kapena kutseka nkhope youma nthawi yayitali anthu asanamve cholakwika.

Miyeso ya kulephera kwa chisindikizo cha makina

Kusiyanitsa kulephera kwa chisindikizo cha makinaimafuna kuyeza momwe makina ake othandizira alili komanso momwe chipinda chosindikizira chilili. Pa mapampu okhala ndi mapulani otulutsira zisindikizo a API 682 (monga Plan 11, 52, kapena 53), akatswiri ayenera kutsimikizira kuchuluka kwa madzi otuluka, kusiyana kwa kuthamanga kwa madzi, ndi kuchuluka kwa madzi osungira madzi. Kutsika mwadzidzidzi kwa kuthamanga kwa madzi osungira madzi a Plan 53 kumasonyeza kuti nkhope za zisindikizo zamkati zatseguka, zomwe zimapangitsa kuti madzi otchinga azithira mumtsinje wa ndondomekoyi.

Kuphatikiza apo, kuyeza kuthamanga kwa mpweya mkati mwa chipinda chosindikizira n'kofunika kwambiri. Ngati kuthamanga kwa mpweya m'chipinda chosindikizira kutsika pansi pa kuthamanga kwa mpweya wa madzi opompedwa, madziwo adzasanduka nthunzi, zomwe zimapangitsa kuti nkhope za chosindikizira ziume ndikusweka. Akatswiri ayeneranso kuyeza kupotoka kwa shaft pafupi ndi chisindikizo pogwiritsa ntchito zizindikiro zoyimbira panthawi yozungulira pang'ono (ngati kuli kotetezeka komanso koyenera); kupotoka kopitilira mainchesi 0.003 (0.075 mm) kukusonyeza kuti kusakhazikika kwa makina kukuwononga kwambiri nkhope za chosindikizira.

Miyeso ya kulephera kwa bere

Kuzindikira ma bearing diagnostics kumadalira kwambiri kusanthula kwa kugwedezeka ndi tribology. Pogwiritsa ntchito ma accelerometers, akatswiri amajambula vibration spectrum kuti adziwe ma frequencies enieni. Ma rolling element bearing amapanga ma frequencies osiyanasiyana kutengera geometry yawo: Ball Pass Frequency Outer (BPFO), Ball Pass Frequency Inner (BPFI), Ball Spin Frequency (BSF), ndi Fundamental Train Frequency (FTF). Kupezeka kwa ma non-synchronous peaks ofanana ndi ma frequencies owerengedwawa kumapereka umboni wotsimikizika wa kuwonongeka kwa bearing raceway kapena rolling element.

Nthawi yomweyo, kusanthula mafuta kumapereka mbiri ya mankhwala ndi tinthu tating'onoting'ono ta thanzi la bearing. Akatswiri ayenera kuchotsa chitsanzo chamoyo kuchokera mu bearing sump ndikuchifufuza kuti awone ngati pali zinyalala zomwe zawonongeka komanso kuwonongeka kwa viscosity. Kukwaniritsa zolinga za ISO 4406 zoyera (zomwe nthawi zambiri zimakhala 16/14/11 pa mapampu amafakitale) ndikofunikira. Kukwera mwadzidzidzi kwa tinthu ta ferrous, mkuwa, kapena kusintha kwakukulu kwa Total Acid Number (TAN) ya mafuta kumatsimikizira kuti bearing ikutaya zinthu mwachangu ndipo imafuna kusinthidwa nthawi yomweyo, mosasamala kanthu za momwe chisindikizo cha makina chilili.

Mikhalidwe Yogwirira Ntchito Yomwe Imapanga Zizindikiro Zofanana

Muzochitika zambiri zodziwira matenda, chifukwa chachikulu cha kulephera sichomwe chili mu chisindikizo cha makina kapena bearing yokha. M'malo mwake, mikhalidwe yoipa yogwirira ntchito ndi mavuto a hydraulic a systemic zimakhala ndi mphamvu zowononga zomwe zimaukira zigawo zonse ziwiri nthawi imodzi.

Mavuto a dongosololi amabweretsa zizindikiro zosokoneza kwambiri, nthawi zambiri zimatsanzira zizindikiro zenizeni za kulephera kwa zigawo zinazake. Kuzindikira zolakwika zazikuluzikulu za ntchito ndikofunikira; kusintha chisindikizo chosweka kapena bearing yosweka popanda kuthana ndi chifukwa cha hydraulic kapena makina kumatsimikizira kulephera kubwerezabwereza mwachangu.

Kutsekeka kwa m'mimba, njala yoyamwa, kusakhazikika bwino, ndi phazi lofewa

Kusakhazikika kwa hydraulic ndi chinthu chachikulu chomwe chimayambitsa kulephera kwa zinthu nthawi imodzi. Kutsekeka kwa hydraulic kumachitika pamene Net Positive Suction Head yomwe ilipo (NPSH) imatsika pansi pa Net Positive Suction Head yomwe ikufunika (NPSHr) ndi pampu, zomwe zimapangitsa kuti thovu la nthunzi lipangidwe ndikuphulika mwamphamvu. Njira yabwino kwambiri yopangira uinjiniya imafuna malire a NPSH osachepera mapazi atatu mpaka asanu kuti izi zipewe. Kutsekeka kwa hydraulic kumabweretsa kugwedezeka kwakukulu, kosasinthika komwe kumamveka ngati miyala yopopera; kusweka kwa hydraulic kumeneku kumasweka.nkhope zosindikizira zamakina zosalimbandipo nthawi yomweyo amagunda zinthu zozungulira zonyamula katundu motsutsana ndi mipikisano yawo.

Mofananamo, kusagwirizana kwa makina pakati pa injini ndi zida zoyendetsedwa kumakhudza rotor yonse. Ngati kusagwirizana kofanana kupitirira mainchesi 0.005 (0.127 mm), nthawi yopindika yomwe imachitika imakakamiza shaft kuti igwedezeke kawiri pa kuzungulira kulikonse. Kupindika kosalekeza kumeneku kumatsegula nkhope za makina osindikizira, zomwe zimapangitsa kuti njira ituluke, pomwe nthawi yomweyo kumayika katundu wambiri wopangira pa mabearing, zomwe zimapangitsa kuti munthu atopa msanga komanso kutenthedwa kwambiri. Phazi lofewa—komwe maziko a zida sakhala pansi pa maziko—limapanga kusokonekera kofanana pamene mabotolo omangira amamangiriridwa.

Zolakwika pa mafuta odzola, madzi oipitsidwa, ndi zinthu zolimba

Kuipitsidwa ndi njira zosayenera zopaka mafuta nthawi zambiri zimaoneka ngati zolakwika pazigawo. Kupaka mafuta kwambiri pa bearing ndi vuto lodziwika bwino lokonza lomwe limapangitsa kuti mafuta azitikita kwambiri. Kupindika kumeneku kumabweretsa kukangana kwakukulu kwamkati, zomwe zimapangitsa kuti kutentha kwa nyumba ya bearing kukwere kwambiri kuposa 200°F (93°C). Katswiri angaganize kutentha kumeneku ngati bearing yolephera, pomwe kwenikweni, bearing ndi yolimba koma yophwanyidwa ndi kutentha.

Kumbali ya chisindikizo, madzi oipitsidwa amawononga nkhope zolondola. Ngati kuchuluka kwa zinthu zolimba zomwe zimapachikidwa kupitirira magawo a kapangidwe ka chisindikizo—nthawi zambiri kupitirira 300 ppm pa zisindikizo zokhazikika za single seals—tinthu tating'onoting'ono timalowa mu filimu yamadzimadzi a microscopic. Madzi oundana awa amalowetsa nkhope za kaboni, ndikupanga kutentha kwakukulu komwe kumakhalapo komanso kufuula kwamphamvu komwe kungadziwike mosavuta ngati phokoso la bearing cage. Kuonetsetsa kuti mapulani oyera oyeretsera (monga API Plan 32) ndi ofunikira kwambiri posiyanitsa kuipitsidwa kwa madzi ndi kulephera kwa makina.

Matrix ya chifukwa cha zizindikiro zomwe zawonedwa

Kuti athetse zizindikiro zofananirazi, magulu odalirika amagwiritsa ntchito njira yodziwira zomwe zimayambitsa matendawa kuti azindikire zomwe zimachitika m'munda.

Pogwiritsa ntchito matrix iyi, katswiri wofufuza angayang'ane kupitirira kuwonongeka komwe kulipo nthawi yomweyo. Ngati chisindikizo chonse chikutuluka ndipo bearing ikugwedezeka pa liwiro la kutembenuka kawiri, matrix ikuwonetsa momveka bwino kuti zinthu zonse ziwiri sizili bwino m'malo molephera nthawi imodzi, komanso kulephera kodziyimira pawokha kwa zinthu zonse ziwiri.

Zosankha Zokonza, Kusintha, ndi Kuyimitsa Kugwira Ntchito

Cholinga chachikulu cha njira yodziwira matenda ndi kupanga chisankho chodziwa bwino komanso chodalirika pankhani yogwiritsira ntchito zida. Deta ikasonkhanitsidwa ndipo chifukwa chake chadziwika, oyang'anira mafakitale ayenera kusankha ngati angayese kukonza pa intaneti, kukonza nthawi yochepa, kapena kuchita E-stop nthawi yomweyo kuti apewe kulephera kwakukulu.

Zisankho zoyimitsa ntchitozi zikuyendetsedwa ndi miyezo yokhazikika yamakampani, malamulo okhudza chilengedwe, komanso zotsatira zachuma za kuwonongeka kwa zida. Miyezo yomveka bwino iyenera kufotokozedwa kuti kuthetse kusamveka bwino kwa njira zosamalira.

Ngati kusintha chisindikizo cha makina kuli koyenera

Kusintha chisindikizo chamakinaNdikoyenera pamene ntchito yake yayikulu—kusunga—yasokonekera mosalekeza ndipo singakonzedwe mwa kusintha mapulani oyeretsera kapena magawo ogwirira ntchito. Pa mapampu omwe amagwira ntchito ndi mankhwala oopsa kapena osasunthika (VOCs), malamulo azachilengedwe ndi miyezo ya API 682 zimakhazikitsa malire okhwima a kutayikira. Ngati mpweya wa VOC upitirira malire a malamulo am'deralo (nthawi zambiri umayesedwa pa <5.6 magalamu pa ola limodzi kapena kudzera mu ppm sniffers), chisindikizocho chiyenera kusinthidwa nthawi yomweyo kuti chikhale chogwirizana.

Kupatula kutsatira malamulo a chilengedwe, kuwonongeka kwa nkhope za chisindikizo kumapereka chifukwa chosinthira. Ngati kugwetsedwa kapena kuyang'aniridwa mkati mwa chisindikizocho kukuwonetsa nkhope za kaboni zophwanyika, kugwedezeka kozama, kapena silicon carbide yoyesedwa kutentha, chisindikizocho sichingapulumutsidwe. Kuyesa kuyendetsa chisindikizo chokhala ndi nkhope zosweka sikungobweretsa kutayika kwakukulu kwa chinthucho komanso mwina kudzapangitsa kuti chikhale ndi shaft sleeve ya pump, ndikukweza kusintha kwa chisindikizo cha $2,000 kukhala shaft ndi rotor yokonzanso ya $15,000.

Pamene kusintha kwa bere kuli koyenera

Kusintha mabearing kumakhala koyenera pamene zizindikiro za kugwedezeka zikusonyeza kutopa kwapamwamba pansi pa nthaka kapena pamene kusanthula kwa mafuta kumatsimikizira kuwonongeka kwakukulu kwa chitsulo. Miyezo yamakampani, monga ISO 10816-3, imapereka malire oyenera. Ngati pampu yolimba yamakampani ilowa mu Zone C kapena Zone D—nthawi zambiri imadziwika ndi kugwedezeka konsekonse kopitilira 0.28 in/s RMS (7.1 mm/s)—bearing imawonongeka kwambiri ndipo imabweretsa chiopsezo ku makina onse.

Kuphatikiza apo, ngati kusanthula kwa mafuta kukuwonetsa kukwera mwadzidzidzi kwa tinthu tating'onoting'ono, monga kuwonjezeka kwa >10 ppm mu chitsulo kapena mkuwa pakati pa zitsanzo za mwezi uliwonse, khola la bearing cage kapena raceway likuphwanyika mwachangu. Pa siteji iyi, kuwonjezera mafuta atsopano sikuthandiza. Bearing iyenera kusinthidwa zinthu zozungulira zisanatsekedwe kwathunthu, zomwe zingayambitse shaft kudulidwa kapena injini kudzaza ndi kugwedezeka.

Mtengo wosankha zochita zoyimitsa ntchito

Kuti mayankho azikhala ofanana pakati pa ma shift ndi antchito, maofesi ayenera kugwiritsa ntchito mtengo wokhazikika wosankha zochita zoyimitsa. Ngati makina akuwonetsa kugwedezeka kwadzidzidzi kudutsa malire a alamu, kuphatikiza kutentha kwa bearing housing kukukwera mofulumira kuposa 2°F (1°C) pamphindi, wogwiritsa ntchitoyo ayenera kuyimitsa mwadzidzidzi. Kukwera mwachangu kumeneku kumasonyeza kuti bearing ikugunda kapena kuphulika kwakukulu kwa chisindikizo.

Ngati zizindikirozo zili zokhazikika koma zosatsimikizika—monga chisindikizo cha makina chomwe chimataya madontho 30 pamphindi imodzi a madzi osaopsa, komanso kugwedezeka kwa bearing komwe kuli m'dera la "chenjezo" (monga 0.18 in/s RMS)—zipangizozi zitha kukhalabe pa intaneti motsogozedwa mosalekeza. Pankhaniyi, mtengo wosankha umafuna kuti pakhale nthawi yokonzekera kuzima kwa kukonza mkati mwa maola 72. Njira yokonzedwayi imagwirizanitsa udindo woteteza zida zodula komanso kufunika kwa malonda kuti zisunge nthawi yogwira ntchito yopanga.

Mfundo Zofunika Kwambiri

• Yambani kuzindikira matendawa mwa kuzindikira umboni woyamba wosazolowereka, monga kutuluka kwa madzi, kutentha kwa mabearing, kusintha kwa kugwedezeka, kuipitsidwa kwa mafuta, kapena kutuluka kwa shaft.
• Tetezani kutentha kwa nyumba ya bearing pafupi ndi 180°F (82°C) ndi liwiro la kugwedezeka pamwamba pa 0.15 in/s RMS ngati chenjezo loyambirira la kuthetsa mavuto.
• Yang'anani kuthamanga kwa shaft chifukwa kuyenda kupitirira mainchesi 0.05 (0.05 mm) kungawononge nkhope zomangira ndi mphete za O.
• Yang'anani momwe mafuta alili nthawi iliyonse pamene chisindikizo cha makina chikutuluka, chifukwa kuipitsidwa kwa madzi m'thupi kumatha kuchepetsa kukhuthala kwa mafuta ndikuwononga ma bearing.
• Pewani kusintha chinthu chowonongeka chomwe chikuoneka bwino mpaka mutatsimikiza ngati chisindikizo kapena chotetezera chinali choyambitsa kulephera.
• Gwiritsani ntchito kusanthula kugwedezeka, kutentha kwa thupi, kusanthula mafuta, ndi kuyang'anira zisindikizo zowoneka bwino kuti mupewe kukonzanso mobwerezabwereza komanso nthawi yosakonzekera.

Mafunso Ofunsidwa Kawirikawiri

Kodi ndingadziwe bwanji ngati vuto la pampu linayamba ndi chisindikizo cha makina kapena bearing?

Yang'anani kusintha koyamba koyezeka: kutuluka kwa chisindikizo, kuipitsidwa kwa mafuta, kugwedezeka, kutuluka kwa shaft, kapena kutentha kwa bearing. Kusakhazikika kwa bearing nthawi zambiri kumayambitsa kuyenda kwa shaft komwe kumawononga nkhope za seal, pomwe kutuluka kwa seal kumatha kuipitsa mafuta ndikuwononga ma bearing mwachangu.

Kodi kutentha kotani komwe kungayambitse mavuto?

Kutentha kwa nyumba yosungiramo zinthu zotenthetsera komwe kukuyandikira 180°F (82°C) ndi chizindikiro chochenjeza. Sikuti nthawi zonse kumafuna kuzimitsidwa nthawi yomweyo, koma kuyenera kuyambitsa macheke olamulidwa monga kutentha kwa mpweya, kusanthula kugwedezeka, kuyang'ana mafuta, ndikuwunikanso momwe zinthu zikuyendera.

Kodi chisindikizo cha makina cholephera chingayambitse kulephera kwa mabearing?

Inde. Ngati madzi opangidwa ndi makina alowa m'nyumba ya bereji kapena kutsuka mafuta odzola, kukhuthala kwa mafuta ndi ukhondo wake zimatha kuchepa mofulumira. Madzi owononga kapena owononga amatha kufulumizitsa kuwonongeka ndikupangitsa berejiyo kutentha kwambiri kapena kuuma.

Kodi kulephera kwa bearing kungawononge chisindikizo chamakina?

Inde. Ma bearing osweka kapena omasuka amalola kuti shaft ipatuke kwambiri komanso kuti madzi azitha kuyenda bwino. Ngati kuyenda kukupitirira kulekerera kwa tight seal tolerances, nthawi zambiri pafupifupi 0.05 mm, nkhope za seal zimatha kusweka, kulekana, kapena kutuluka madzi.

Kodi ndi kuchuluka kotani kwa kugwedezeka komwe kumasonyeza vuto lomwe likubuka?

Kusintha kwa RMS pafupifupi 0.15 in/s pa liwiro lonse la kugwedezeka kuyenera kuonedwa ngati chenjezo loyambirira. Gwiritsani ntchito kusanthula kwa kugwedezeka kwapamwamba kuti mulekanitse kusalinganika, kusalinganika bwino, kumasuka, zolakwika za mabearing, ndi kusakhazikika kogwirizana ndi chisindikizo.