Ama-Bearings, njengengxenye ebalulekile futhi ebalulekile yemikhiqizo yemishini, adlala indima ebalulekile ekusekeleni i-shaft ejikelezayo.Ngokuya ngezindawo ezihlukene zokungqubuzana ku-akhiqizo, ukuthwala kuhlukaniswe i-rolling friction bear (okubizwa ngokuthi i-rolling bear) kanye ne-sliding friction bear (okubizwa ngokuthi i-sliding bear).Lezi zinhlobo ezimbili zama-bearings zinezici zazo ezakhiweni kanye nezinzuzo kanye nokubi ekusebenzeni.

1. Ukuqhathaniswa kwama-bearings aginqikayo nama-sliding bearings

1. Ukuqhathaniswa kwesakhiwo kanye nemodi yokunyakaza

Umehluko osobala kakhulu phakathi kwama-bearings aginqikayo kanye nama-plain bearings ubukhona noma ukungabikho kwezinto ezigingqayo.

(1) Ama-rolling bearings anezinto ezigoqayo (amabhola, ama-cylindrical rollers, ama-tapered rollers, ama-roller enaliti), ajikelezayo ukuze asekele i-shaft ejikelezayo, ngakho-ke ingxenye yokuxhumana iyiphuzu, izakhi ezigoqa kakhulu, amaphuzu amaningi okuxhumana.

(2) I-bearing bearing ayinazo izinto ezigoqayo, futhi i-shaft ejikelezayo isekelwa indawo ebushelelezi, ngakho ingxenye yokuxhumana ingaphezulu. Umehluko esakhiweni phakathi kwalokhu okubili unquma ukuthi ukunyakaza kwe-rolling bearing kuyagingqika, futhi imodi yokunyakaza ye-sliding bear iyashelela, ngakho-ke isimo sokungqubuzana sihluke ngokuphelele.

2. Ukuqhathaniswa komthamo wokuthwala

Ngokuvamile, ngenxa yokucindezela okukhulu kwendawo yama-bearings ayisilayidi, amandla okuthwala ama-bearings ashelelayo ngokuvamile aphakeme kunalawo ama-bearings aginqikayo, futhi amandla okugingqa ama-bearings ukumelana nemithwalo yethonya awaphezulu, kodwa ama-bearings agcwele uketshezi. ingamelana nemithwalo yokushaqeka emikhulu.Uma isivinini sokujikeleza siphezulu, amandla amaphakathi ezinto eziginqikayo ku-rolling bearing anda, futhi umthamo wawo wokuthwala kufanele uncishiswe (umsindo uthambekele ekubeni wenzeke ngesivinini esikhulu).Kumabheringi okuslayida e-hydrodynamic, umthamo wokuthwala umthwalo uyakhula njengoba isivinini sokujikeleza sikhula.

3. Ukuqhathaniswa kwe-friction coefficient kanye nokuqala ukumelana ne-friction

Ngaphansi kwezimo ezijwayelekile zokusebenza, i-coefficient ye-friction yama-bearings agingqayo iphansi kunaleyo yama-bearings ashelelayo, futhi inani lizinzile ngokuqhathaniswa.Ukugcotshwa kwamabheringi ashelelayo kuthintwa kalula yizinto zangaphandle ezifana nesivinini sokujikeleza nokudlidliza, futhi i-coefficient yokungqubuzana iyahlukahluka kakhulu.

Uma uqala, njengoba i-sliding bearing ingakakhi ifilimu yamafutha ezinzile, ukumelana kukhulu kunokwe-rolling bearing, kodwa ukumelana kokuqala kwe-friction kanye ne-coefficient ye-friction yokusebenza ye-hydrostatic sliding bear kuncane kakhulu.

4. Ukuqhathaniswa kwejubane lokusebenza okusebenzayo

Ngenxa yokunqunyelwa kwamandla we-centrifugal wezinto eziginqikayo kanye nokukhuphuka kwezinga lokushisa kwe-bheri, i-amandla eginqikayo ayikwazi ukuzungezisa kakhulu, futhi ngokuvamile ifanele izimo zokusebenza zesivinini esimaphakathi nesiphansi.Ngenxa yokushisa nokugqoka kwe-bearing, isivinini sokusebenza se-lubricated bearing engaphelele akufanele sibe phezulu kakhulu.Ukusebenza kwejubane eliphezulu kwebheringi egcotshwe ngokuphelele yi-liquid-lubricated kuhle kakhulu, ikakhulukazi uma i-hydrostatic sliding bear isebenzisa umoya njengesithambiso, ijubane layo lingafinyelela ku-100000r/min.

5. Ukuqhathaniswa kokulahlekelwa amandla

Ngenxa ye-coefficient encane yokungqubuzana kwama-bearings agingqayo, ukulahlekelwa kwamandla ngokuvamile akukukhulu, okuncane kunalokhu kwamabheringi agcotshisiwe oketshezi angaphelele, kodwa kuzokhula kakhulu lapho ukuthambisa nokufakwa kungafanele.Ukulahlekelwa kwamandla okushayisana kwamabheringi agcotshiswe uketshezi ngokuphelele kuphansi, kodwa kumabheringi e-hydrostatic ashelelayo, ukulahleka kwamandla okuphelele kungase kube phezulu kunalokho kwamabheringi e-hydrodynamic ngenxa yokuphelelwa amandla kwephampu kawoyela.

6. Ukuqhathanisa impilo yenkonzo

Ngenxa yethonya le-pitting yezinto ezibonakalayo nokukhathala, ama-rolling bearings ngokuvamile aklanyelwe iminyaka emi-5 kuya kweyi-10, noma ashintshwe ngesikhathi sokulungiswa kabusha.Amaphedi okuthwala ama-bearings agcotshiwe angaphelele aguge kakhulu futhi adinga ukushintshwa njalo.Impilo yebheringi egcwele uketshezi olugcotshisiwe ngokomqondo ayinamkhawulo, kodwa ekusebenzeni, ngenxa yemijikelezo yengcindezi, ikakhulukazi kumabheringi okuslayida e-hydrodynamic, into ephethe iphedi ingase ihlangabezane nokwehluleka ukukhathala.

7. Ukuqhathaniswa kokunemba kokujikeleza

Ngenxa yokucaciswa kwe-radial encane yamabhering aginqikayo, ukunemba kokuzungezisa ngokuvamile kuphezulu.Ama-bearings agcotshiwe angaphelele asesimweni sokugcotshwa komngcele noma ukuthambisa okuxubile, futhi ukusebenza akuzinzile, ukugqokwa kubucayi, futhi ukunemba kuphansi.Ama-bearings agcotshwe ngokuphelele angama-liquid anonemba okuphezulu ngenxa yokuba khona kwefilimu kawoyela, ukubhafa kanye nokumuncwa kokudlidliza.I-hydrostatic sliding bearing inokunemba okuphezulu kokujikeleza.

8. Ukuqhathanisa kwezinye izici

Ama-rolling bearings asebenzisa amafutha, amafutha noma okokugcoba okuqinile. Umthamo mncane kakhulu, futhi umthamo mkhulu ngesivinini esikhulu. Ukuhlanzeka kwamafutha kuyadingeka ukuba kube phezulu, ngakho-ke kuyadingeka ukuthi kufakwe uphawu, kodwa ukuthwala kulula ukushintshwa futhi ngokuvamile akudingi ukulungisa iphephabhuku.

Kuma-bearings ashelelayo, ngaphandle kwama-bearings angagcwalisiwe ngokuphelele, okokugcoba kuvamise ukuba uketshezi noma igesi, futhi inani likhulu, futhi ukuhlanzeka kwamafutha kuyadingeka. Isihlahla esithwalayo sidinga ukushintshwa njalo, futhi ngezinye izikhathi iphephabhuku liyalungiswa.

2. Ukukhethwa kwama-bearings aginqikayo nama-sliding bearings

Ngenxa yezimo zangempela zokusebenza eziyinkimbinkimbi nezihlukahlukene, alikho izinga elihlanganisiwe lokukhethwa kwamabheringi aginqikayo namabheringi ashelelayo.Ngenxa ye-coefficient encane yokungqubuzana, ukumelana nokuqala okuphansi, ukuzwela, ukusebenza kahle okuphezulu, kanye nokujwayelekile, ama-rolling bears anokushintshana okuhle kakhulu kanye nokuguquguquka, futhi kulula kakhulu ukusebenzisa, ukugcoba nokugcina. esetshenziswa kabanzi.

Amabhere ashelelayo ngokwawo anezinzuzo ezihlukile, futhi ngokuvamile asetshenziswa kwezinye izikhathi lapho kungenakwenzeka khona, kungalungile noma ngaphandle kwezinzuzo zokusebenzisa ama-ringing bearings, njengalezi zenzakalo ezilandelayo:

1. Usayizi wesikhala seradial unomkhawulo, noma umcimbi kufanele uhlukaniswe futhi ufakwe

Ngenxa yendandatho yangaphakathi, indandatho yangaphandle, umzimba ogoqayo kanye nekheji esakhiweni se-rolling bearing, ubukhulu be-radial bukhulu, futhi isicelo sinqunyelwe.Lapho izidingo zosayizi we-radial ziqinile, ama-roller enaliti angama-bearings angakhethwa. Uma kunesidingo, ama-sliding bearings adinga ukukhethwa.Ukuze uthole ama-bearings angalungile, noma angakwazi ukufakwa kusukela ekuqondeni kwe-axial, futhi izingxenye okufanele zifakwe ngokuhlukana, ama-sliding bearings ahlukanisiwe asetshenziswa.

2. Izikhathi zokunemba okuphezulu

Lapho amabheringi asetshenziswayo anezidingo zokunemba okuphezulu, amabheringi ashelelayo avame ukukhethwa, ngoba ifilimu kawoyela wokugcoba wamabheringi ashelelayo ingabhafa futhi imunce ukudlidliza. Uma izidingo zokunemba ziphezulu kakhulu, kungakhethwa kuphela ama-hydrostatic sliding bearings.Ukuze uthole ukunemba nokunemba okuphezulu kwemishini yokugaya, izinsimbi ezihlukahlukene zokunemba, njll., ama-sliding bearings asetshenziswa kakhulu.

3. Izikhathi zomthwalo osindayo

Ama-rolling bearings, kungakhathaliseki ukuthi ama-ball bearings noma ama-roller bears, ajwayele ukushisa nokukhathala ezinhlelweni zomthwalo osindayo.Ngakho-ke, lapho umthwalo umkhulu, ama-sliding bearings avame ukusetshenziswa, njengezigayo eziginqikayo, izinjini zesitimu, izesekeli ze-aero-injini kanye nemishini yezimayini.

4. Ezinye izikhathi

Isibonelo, isivinini sokusebenza siphezulu kakhulu, ukushaqeka nokudlidliza kukhulu ngokwedlulele, futhi ukusebenza emanzini noma endaweni ebolayo kuyadingeka, kanye ne-sliding bear nayo ingakhethwa ngokufanele.

Ohlotsheni lwemishini nemishini, ukusetshenziswa kwama-bearings agingqikayo kanye nama-sliding bearings kunezinzuzo kanye nokubi, futhi kufanele kukhethwe ngokufanele ngokuya ngobunjiniyela bangempela.Esikhathini esedlule, ama-crushers amakhulu naphakathi nendawo ngokuvamile ayesebenzisa ama-sliding bearings ane-babbitt alloys, ngenxa yokuthi angakwazi ukumelana nemithwalo emikhulu, futhi awakwazi ukuguga futhi azinzile.Ama-crusher emihlathini amancane asebenzisa ama-rolling bearings, anekhono eliphezulu lokudlulisa, azwela kakhulu, futhi kulula ukuwanakekela.Ngokuthuthuka kobuchwepheshe bokukhiqiza ama-rolling bearing, ama-crusher amakhulu emihlathi nawo asebenzisa ama-rolling bearings.

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Isikhathi sokuthumela: Jul-08-2022