Upangiri Wamtheradi Wokhala ndi Kusanthula kwa Vibration Ndi Mtengo Wa GE | Shangdong Yueheng

Monga Woyang'anira MRO kapena Senior Procurement Injiniya, mumamvetsetsa kuti thanzi lamakina anu ndiye gwero la ntchito yanu. Kutsika kosakonzekera sikungosokoneza; ndikugunda molunjika ku mzere wanu wapansi. Nkhaniyi ndikulowera kwanu m'chimodzi mwa zida zamphamvu kwambiri pakukonza zolosera: kunyamula kugwedera kusanthula, ndi cholinga chenicheni pa zofunika mtengo wa gE. Tifufuza kuti muyesowu ndi chiyani, momwe mungawutanthauzire, komanso momwe mungagwiritsire ntchito kuti mupewe kuwonongeka kwa zida, kuwonjezera moyo wazinthu zanu, ndikuwonetsetsa kudalirika kosasinthika komwe kampani yanu imadalira. Ku VPK Bearing, sitimangopanga ma bere; timapereka ukatswiri kuti tithandizire anzathu kuchita bwino.

Kodi Bearing Vibration Analysis ndi Chiyani Ndipo Chifukwa Chiyani Zili Zofunika?

M'malo mwake, kusanthula kugwedezeka ndi njira yoyezera ma siginecha akugwedezeka kuchokera pamakina, kukonza zomwe datayo, ndikugwiritsa ntchito chidziwitsocho kudziwa thanzi la makinawo ndi zigawo zake. Ganizirani izi ngati dokotala yemwe amagwiritsa ntchito stethoscope kuti amvetsere kugunda kwa mtima kwa wodwala. Makina aliwonse ozungulira, kuchokera pa gearbox yayikulu yamafakitale kupita ku mota yaying'ono yamagetsi, amapanga "siginecha" yapadera yogwedezeka ikakhala kuti ikugwira ntchito bwino. Pamene chigawo ngati a kubereka imayamba kulephera, imabweretsa kugwedezeka kwatsopano, kosiyana ndi siginecha imeneyo.

Kwa manejala ngati inu, Richard, iyi sisayansi chabe. Ndi njira yothandiza, yosasokoneza kuyang'ana mkati mwa makina anu akugwira ntchito. Pokhazikitsa maziko a kugwedezeka kwabwinobwino kenako ndikuwunika zosintha, mutha:

• Dziwani zolakwika msanga: Dziwani zinthu monga kuvala, kusalinganiza bwino, kapena kusalinganika kwanthawi yayitali zisanakhale zolephereka kwambiri.
• Pewani kuwonongeka koopsa: Kulephera kubereka akhoza kuwononga mitsinje, nyumba, ndi mbali zina zodula ngati sizitsatiridwa.
• Konzani kukonza bwino: M'malo mochita zosweka, mutha kukonza zokonza panthawi yomwe mwakonzekera, ndikupulumutsa ndalama zambiri.
• Wonjezerani chitetezo: Kupewa kulephera kwa zida zosayembekezereka kumateteza antchito anu ndi malo anu.

Kudalirika kwa dongosolo lililonse lamakina kumadalira thanzi la magawo ake ang'onoang'ono. Cholakwika chimodzi kubereka ikhoza kuyimitsa mzere wonse wopanga. Ndicho chifukwa chake kumvetsetsa deta kuchokera ku kusanthula kugwedezeka ndi mwala wapangodya wa kukonza mafakitale zamakono.

Kodi Mtengo Wabwino wa GE Pakugwedeza Vibration Ndi Chiyani Kwenikweni?

Tsopano, tiyeni tinene mwachindunji. Mutha kuwona miyeso yosiyanasiyana mu lipoti la kugwedezeka: kuthamanga, kusamuka, kuthamanga. Koma mmodzi wa amphamvu kwambiri kwa kubereka diagnostics ndi mtengo wa gE, yomwe imadziwikanso kuti "enveloped acceleration" kapena "acceleration enveloping." Iyi ndi njira yoyezera mwapadera yomwe makampani ngati SKF.

Ndiye, ndi chiyani? Tangoganizani cholakwika chaching'ono pa mpikisano wothamanga. Nthawi iliyonse chinthu chogubuduza chidutsa cholakwikacho, chimapanga kakomedwe kakang'ono, kapamwamba kwambiri kapena "dinani." M'malo okhala ndiphokoso pamafakitale, kudina kwakung'ono uku kumamizidwa ndi makina omveka bwino, otsika pafupipafupi (monga kung'ung'udza ndi kulira). The gE njira amachita ngati wapadera fyuluta. Imanyalanyaza phokoso lalikulu, lotsika pang'onopang'ono ndikupatula mphamvu ya "mphamvu" yokhazikika yopangidwa ndi vuto lonyamula. Mphamvuyi imakonzedwa kuti ipange mtengo umodzi wosavuta: the mtengo wa gE.

Kuwuka mtengo wa gE nthawi zambiri ndi chizindikiro choyamba chochenjeza kuti a kubereka ali m'masautso. Imatha kuzindikira zolakwika zazing'ono zomwe miyeso yokhazikika ya vibration ingaphonye, ​​ndikukuchenjezani mwachangu za kulephera komwe kukubwera. Umu ndi mtundu wa data yodalirika, yochenjeza koyambirira yomwe manejala wodziwa zambiri amafunikira kuti apewe zodabwitsa zodula.

Kodi GE Enveloped Acceleration Measurement imatengedwa bwanji?

Kusonkhanitsa molondola gE deta ndi njira yowongoka, koma imafunikira zida ndi njira zoyenera. Chida chachikulu ndi accelerometer, sensa (nthawi zambiri maginito) yomwe imayikidwa mwachindunji panyumba yonyamula makina. Izi accelerometer amasintha kugwedezeka kwamakina kukhala chizindikiro chamagetsi.

Chizindikirochi chimaperekedwa kwa osonkhanitsa deta, monga SKF Microlog analyzer. Pano pali kufotokozera kosavuta kwa zomwe zimachitika mkati mwa osonkhanitsa kuti apange gE mtengo:

1. Kupeza Data: The accelerometer imanyamula ma vibrate osiyanasiyana kuchokera ku kubereka.
2. Kusefa Kwapamwamba: Dongosololi limagwiritsa ntchito fyuluta kuti achotse kugwedezeka konse kotsika komwe kumalumikizidwa ndi makina abwinobwino (monga kuzungulira kwa shaft ndi kusalinganika).
3. Kuphimba (Demodulation): Chizindikiro chotsalira chapamwamba, chomwe chimakhala ndi zotsatira kuchokera ku cholakwika chonyamula, chimakonzedwa. "Emvulopu" ya chizindikiro ichi imapangidwa, yomwe imayang'ana nsonga zam'mwamba zomwe zimakhudzidwa.
4. Kusefa kwa Low-Pass & FFT: Chizindikiro chophimbidwachi chimasefedwanso ndikuwunikidwa pogwiritsa ntchito Fast Fourier Transform (FFT) kuti apange sipekitiramu. Sipekitiramu iyi ikuwonetsa kuchuluka kwa zomwe zikuchitika.
5. Kuwerenga kwa gE: Mphamvu zonse mkati mwa mafupipafupi osiyanasiyana amtundu womalizawu amawerengedwa kuti apange chomaliza gE mtengo.

Kuyeza uku kumapereka nambala yomveka bwino, yosinthika. Potenga nthawi kuwerenga kuchokera pamalo omwewo pamakina, mutha kuyang'anira kubereka kusintha pakapita nthawi ndikuchitapo kanthu vuto lisanakule.

Kodi Mafupipafupi Amtundu Wolephereka Ndi Chiyani?

Pamene zonse gE value imakupatsirani chiwonetsero chachikulu chazovuta zavuto, the gE sipekitiramu imapereka tsatanetsatane wa matenda kuti adziwe malo enieni a vutolo. Chinthu chogudubuza kubereka ili ndi zigawo zinayi zomwe zimatha kulephera, ndipo chilichonse chimapangitsa kuti pakhale zochitika zapadera, zodziwikiratu pafupipafupi ikazungulira.

Izi zimadziwika kuti Bearing Fault Frequencies:

• Ball Pass Frequency, Outer Race (BPFO): Mlingo umene zinthu zogudubuza zimadutsa pa mfundo imodzi pa mpikisano wakunja. Izi ndizofala kwambiri kubereka cholakwika.
• Mpikisano Wodutsa Mpira, Mpikisano Wamkati (BPFI): Mlingo umene zinthu zogudubuza zimadutsa pa mfundo imodzi pa mpikisano wamkati.
• Kuthamanga kwa Mpira (BSF): Zozungulira pafupipafupi cha chinthu chimodzi chogudubuza (mpira kapena chodzigudubuza chokha).
• Mafupipafupi a Sitima ya Sitima (FTF): Zozungulira pafupipafupi wa khola limene limasunga zinthu zogudubuza.

Pamene mukuwona nsonga yochuluka kwambiri gE sipekitiramu, inu mukhoza kufanana ake pafupipafupi ku chimodzi mwa ma frequency owerengeka olakwika awa. Mwachitsanzo, ngati muwona nsonga yamphamvu pa BPFO, mutha kukhala otsimikiza kuti pali kuwonongeka pamtundu wakunja wamtunduwu. kubereka. Mlingo uwu wa matenda mwatsatanetsatane ndi wofunika kwambiri pokonzekera kukonza kolondola.

Kodi Mumatanthauzira Bwanji Kuwerenga kwa GE Value kwa Mapulogalamu Osiyanasiyana?

Funso lodziwika lomwe timapeza ku VPK Bearing ndilakuti, "chabwino" kapena "choyipa" ndi chiyani? mtengo wa gE?" Yankho si nambala imodzi; zimatengera kwambiri ntchito. Galimoto yothamanga kwambiri, yodzaza mopepuka idzakhala ndi siginecha yosiyana kwambiri ndi yoyenda pang'onopang'ono, yodzaza kwambiri.

Pano pali ndondomeko yomasulira gE kuwerenga:

Mfundo Zofunika:

• Khazikitsani Zoyambira: Njira yodalirika ndikutenga a kuwerenga pamene a kubereka ndi zatsopano ndipo zimadziwika kuti zili bwino chikhalidwe. Zoyambira izi zimakhala malo anu oyambira.
• Zochitika, Osachita: Mkulu umodzi kuwerenga akhoza kukhala anomaly. Mphamvu yeniyeni ya kusanthula kugwedezeka zagona pakusintha ma data pakapita nthawi. Kuwonjezeka kokhazikika komanso kosasintha mu mtengo wa gE ndi chizindikiro chotsimikizika cha vuto lomwe likukula.
• Liwiro la Makina: Ma alarm amphamvu ayenera kusinthidwa potengera kuthamanga kwa makina. Makina ocheperako amakhala ndi otsika gE milingo.

Monga opanga ma mayendedwe osiyanasiyana a mafakitale, timamvetsetsa momwe katundu ndi liwiro losiyanasiyana zimakhudzira moyo wamagulu. Ichi ndichifukwa chake timalimbikitsa nthawi zonse kukhazikitsa ma alarm amtundu wina.

Kodi Ndi Zinthu Ziti Zomwe Zimayambitsa Kuwerenga kwa GE Kupitilira Mkhalidwe Woyenera?

Pamene a mtengo wa gE ndi chizindikiro chabwino kwambiri kubereka thanzi, ndikofunikira kumvetsetsa kuti zovuta zamakina zimathanso kukhudza kuwerenga. Katswiri waluso ayenera kuganizira mfundo zimenezi kuti adziwe bwinobwino matendawo komanso kupewa kutanthauzira molakwika zomwe zalembedwazo.

Nawa zinthu zina zomwe zingapangitse mphamvu zothamanga kwambiri ndikukukhudzani gE kuyeza:

• Mavuto Opaka mafuta: Ichi ndi chachikulu. Zosakwanira kapena zonyozeka mafuta zimayambitsa kukhudzana kwachitsulo ndi zitsulo, zomwe zimapanga zotsatira zofanana ndi zolakwika zakuthupi. Tisanthula izi mu gawo lotsatira.
• Mavuto a Gear Mesh: Mu gearbox, kulumikiza mano a gear kumatha kupanga kugwedezeka kwakukulu komwe kumatha kunyamulidwa ndi accelerometer pafupi kubereka.
• Kusokoneza: Kusiyanitsa kwakukulu kwa angular kapena kufanana kungayambitse zachilendo katundu pa kubereka, kuchititsa kupsinjika ndi kutulutsa phokoso lapamwamba.
• Pampu Cavitation: M'makina amadzimadzi, kupanga ndi kugwa kwa thovu la nthunzi (cavitation) kungapangitse mphamvu yofanana ndi yomwe imayenda kudzera mu makina.
• Zowonongeka: A lotayirira kubereka m'nyumba zake kapena mbali zina zotayirira zimatha kuyambitsa kunjenjemera kapena kukhumudwa, zomwe zimakwezanso gE mlingo.

Ichi ndichifukwa chake ndikofunikira kuyang'ana chithunzi chonse. Zogwirizana ndi gE Zomwe zili ndi data ina ya kugwedezeka (monga mayendedwe a liwiro), kuwerengera kutentha, ndi kuyang'ana kowoneka ndizofunikira pakuwunika molondola zomwe zimayambitsa.

Kodi Kuwunika kwa gE Kungasiyanitse Pakati pa Nkhani Zothirira ndi Zovala Zovala?

Inde, nthawi zambiri imatha, ndipo ichi ndi chinthu china champhamvu cha gE luso. Pamene onse osauka mafuta ndi thupi kubereka kuwonongeka chifukwa gE kuti achuluke, amawonekera mosiyana mu data.

A mafuta Vutoli limawonekera ngati "kapeti" yaphokoso lokwezeka pamawonekedwe okwera kwambiri. Nthawi zambiri sizikhala ndi nsonga zakuthwa zomwe zimakhudzidwa ndi kubwerezabwereza. Ganizirani ngati phokoso lokhazikika kapena loyera. Mafuta kapena filimu yamafuta ikasweka, mumapeza zotsatira zosasinthika, zosawoneka bwino m'malo mongodina "kudina" pafupipafupi.

Mosiyana ndi izi, kuvala kwakuthupi kapena kuwonongeka (monga spall pa mpikisano) kutulutsa nsonga zomveka bwino mumpikisano gE spectrum ku zobereka ma frequency olakwika (BPFO, BPFI, etc.). Izi zili choncho chifukwa chikokacho chimabwerezedwa pakapita nthawi yolondola kwambiri ndikuzungulira kulikonse.

Umu ndi momwe mungagwiritsire ntchito chidziwitsochi pochita:

1. Mukuwona kuwuka mtengo wa gE pa zovuta kubereka.
2. Inu mumayang'ana pa gE sipekitiramu.
3. Chitsanzo A: Mukuwona "pansi paphokoso" lalikulu, lokwezeka popanda nsonga zowoneka bwino. Izi zikuwonetsa kwambiri a mafuta nkhani. Chochita choyenera ndi kupaka mafuta kubereka ndi kutenga wina kuwerenga. Ngati ndi gE mlingo umatsika kwambiri, mwatsimikizira ndikuthetsa vutoli popanda kusintha gawolo.
4. Zochitika B: Mukuwona nsonga zakuthwa, zosiyana zomwe zimagwirizana ndi zobereka Mtengo wa BPFO. Izi zikusonyeza kuwonongeka kwa thupi. Kupaka mafuta sikungakonze izi; ndi kubereka ziyenera kukonzedwa kuti zilowe m'malo.

Kutha kusiyanitsa kumapulumutsa nthawi, ndalama, ndikulepheretsa kusintha kosafunikira kwa zabwino kubereka izo zinali chabe njala ya mafuta.

Kodi Udindo wa SKF Microlog mu GE Data Collection ndi chiyani?

The SKF Microlog mndandanda ndi mmodzi wa makampani-mulingo kunyamula deta otolera kwa kusanthula kugwedezeka. Zida zolimbazi ndi makompyuta apadera omwe amapangidwira akatswiri okonza kuti azigwiritsa ntchito m'munda. Ku VPK Bearing, nthawi zambiri timagwira ntchito ndi makasitomala omwe amagwiritsa ntchito makinawa kuyang'anira thanzi lazinthu zathu pambuyo poika.

The SKF Microlog ndi hardware yomwe imapanga gE kuyeza kotheka. Imachita zovuta zonse zosefera ndi kukonza zomwe takambirana kale. Katswiri amasankha malo oyezera okonzedweratu ("njira") pa Microlog, amaphatikiza ndi accelerometer ku makina, ndi kukanikiza batani. Chipangizocho chimangosonkhanitsa deta yofunikira, imapanga FFT, imawerengera gE mtengo, ndi kusunga kuwerenga.

Osonkhanitsa deta amakono ngati SKF Microlog chitani zambiri osati kungosonkhanitsa deta. Nthawi zambiri amakhala ndi zida zowunikira:

• Kusanthula Pamalo: Amatha kuwonetsa chiwonetserocho pazenera, kulola katswiri wodziwa zambiri kuti adziwe matenda oyamba m'munda.
• Kuwunika Ma Alamu: Chipangizocho chingathe kufananiza chatsopano kuwerenga kuyikatu ma alarm ndikuyika chizindikiro pa makina omwe ali pachiwopsezo kapena pangozi.
• Kusunga Zosungidwa: Miyezo yonse imasungidwa ndipo imatha kukwezedwa pa netiweki yamakompyuta kuti iwunike mozama ndikusintha kwanthawi yayitali pogwiritsa ntchito mapulogalamu monga SKFNdi @ptitude Analyst.

Kuphatikiza uku kwa sensa yodalirika, wosonkhanitsa deta wamphamvu ngati Microlog, ndi pulogalamu yowunikira yolimba imapanga dongosolo lathunthu lowunikira. Ndi makina amtunduwu omwe amakulolani kuti muzitha kuyang'anira thanzi la mazana kapena masauzande a mayendedwe pamalo anu onse ndikuchita bwino komanso kudalirika. Kwa makina ovuta, mungafunike zonyamula zosiyanasiyana, kuphatikizapo zapadera zitsulo zozungulira zozungulira za kuwongolera molakwika ndi katundu wolemetsa.

Kuphatikiza Kusanthula kwa gE mu Njira Yanu Yokonzekera Yokhazikika

Kutengera gE kusanthula ndi njira yosinthira kuchoka pakukonzanso ("kukonza ikasweka"). Zimakupatsani mphamvu kuti mupange pulogalamu yosamalira mwachidwi-kapena yolosera zam'tsogolo.

Nayi njira yolumikizirana:

1. Dziwani Zinthu Zofunika Kwambiri: Simungathe kuyang'anira chirichonse. Yambani ndikuzindikira makina omwe kulephera kwawo kungakhudze kwambiri kupanga, chitetezo, kapena mtengo.
2. Pangani Database: Pa makina aliwonse ovuta, pangani nkhokwe ya mfundo zoyezera. Kwa aliyense kubereka, mufuna kuyeza munjira yopingasa, yoyima, ndi ya axial.
3. Khazikitsani Zoyambira: Pamene khazikitsa latsopano, apamwamba kubereka, tenga woyamba gE kuwerenga kukhazikitsa maziko. Uwu ndiye "golide" wanu paudindowu. Chitsanzo chabwino cha chigawo chosunthika ndi mpira wakuya wa groove, oyenera ntchito zosiyanasiyana.
4. Konzani Njira Yokhazikika: Fotokozani ndandanda yosonkhanitsira deta. Makina ofunikira amatha kuyang'aniridwa mwezi uliwonse, pomwe zinthu zocheperako zitha kuwonedwa mwezi uliwonse. Kusonkhanitsidwa kwanthawi zonse kumeneku ndikofunikira. The SKF Microlog Njirayi ndi yabwino kwa izi.
5. Unikani ndi Zochitika: Pambuyo panjira iliyonse, kwezani deta ndikuwunikanso zomwe zikuchitika. Yang'anani iliyonse kubereka ku mtengo wa gE akukwera mosalekeza.
6. Chitanipo kanthu pa Data: Gwiritsani ntchito kusanthula kuti mupange dongosolo latsatanetsatane la ntchito. M'malo mwa "Konzani mpope #7," dongosolo likhoza kukhala "Bwezerani galimoto yakunja kubereka pa pompa #7. Kusanthula kwa Spectrum kukuwonetsa cholakwika cha BPFO." Izi zimalola gulu lanu kufika ndi magawo olondola, ngati odalirika cylindrical wodzigudubuza wonyamula, ndi kuchepetsa nthawi yokonza.

Njira yoyendetsedwa ndi datayi imachotsa zongoyerekeza, imakulitsa kukonzekera, ndipo pamapeto pake imapangitsa kuti ntchito yanu yonse ikhale yodalirika komanso yopindulitsa.

Kusankha Mnzanu Wodalirika Wothandizira Kuti Muchepetse Mitengo Yolephereka

Kusanthula kwa vibration ndi chida champhamvu chodziwira kulephera, koma cholinga chachikulu ndikuchita kupewa kulephera poyambirira. Ubwino wa kubereka mumakhazikitsa ndiye chinthu chofunikira kwambiri pakugwira ntchito kwake. Apa ndipamene mgwirizano ndi wopanga ngati VPK Bearing umakhala wofunikira.

Monga fakitale yovomerezeka ya ISO9001 yopitilira zaka khumi, timamvetsetsa zomwe zimafunika kuti apange kubereka zomwe zidzagwirizane ndi malo ovuta a mafakitale. Mukachokera kwa ife, mukupeza zambiri kuposa gawo chabe; mukupeza chitsimikizo chaubwino wokhazikika mu:

• Zida Zapamwamba: Timagwiritsa ntchito zitsulo zoyeretsedwa kwambiri, zowonongeka kuti zitsimikizire kutopa kwapamwamba komanso mphamvu yonyamula katundu.
• Kupanga Zolondola: Mizere yathu yopanga zapamwamba komanso kuwongolera kokhazikika kumatsimikizira kuti aliyense kubereka imakumana ndi zololera zenizeni kuti ikhale yoyenera komanso yosalala.
• Kuyesa Kwambiri: Sitimangodalira kuyendera komaliza. Timapanga cheke ndikuyesa komaliza, kuphatikiza kuwunika kwa vibration, kuti titsimikizire chilichonse kubereka zomwe zimasiya fakitale yathu ilibe zolakwika.

Kwa woyang'anira zogulira zinthu ngati inu, izi zikutanthauza mayendedwe odalirika komanso kulephera kocheperako m'munda. A khalidwe kubereka adzakhala ndi chiyambi chochepa gE kuwerenga ndi kusunga mlingo wotsika kwa nthawi yayitali, yodziwikiratu. Kuyanjana ndi wopanga wotsimikiziridwa ndi sitepe yoyamba komanso yofunika kwambiri pa pulogalamu iliyonse yodalirika yodalirika.

Zofunika Kukumbukira

• Kusanthula kwa vibration ndi njira yosasokoneza yowunikira thanzi la makina ndikuzindikira zolakwika msanga.
• The mtengo wa gE (enveloped acceleration) ndi muyeso wapadera womwe umakhudzidwa kwambiri ndi ma frequency apamwamba omwe amapangidwa ndi ma bearings olephera.
• Kuwuka gE chizolowezi ndi chimodzi mwa zizindikiro zoyambirira komanso zodalirika za chitukuko kubereka vuto.
• The gE sipekitiramu imatha kukuthandizani kudziwa komwe kuli vuto (mtundu wamkati, mtundu wakunja, ndi zina zotero) pozindikira ma frequency omwe amachitikira.
• Kumasulira gE deta imafuna kukhazikitsa maziko ndikusintha zowerengera pakapita nthawi; sichinakhazikitsidwe pa nambala imodzi yapadziko lonse lapansi.
• Mapangidwe apamwamba kubereka kupanga ndiye maziko a kudalirika kwa makina. Zina zomwe sizili bwino zidzalephera nthawi yake, mosasamala kanthu za pulogalamu yanu yowunikira.