Sei michina mizhinji yemigodhi ichisarudza mabearings ekutenderedza panzvimbo yekutsvedza?

Sechinhu chakakosha uye chakakosha muzvigadzirwa zvemichina, mabhengi anoita basa rakakosha mukutsigira kutenderera shafts. Zvinoenderana neakasiyana friction emhando muberengi, fani inokamurwa kuita rolling friction bearing (inonzi rolling bearing) uye inotsvedza inotsvedza (inonzi inotsvedza). Mhando mbiri dzemabheya dzine maitiro avo mukugadzirisa, uye imwe neimwe ine zvayakanakira nezvayakaipira mukuita.

Kuenzanisa kwekukunguruka uye plain bearings

1. Kuenzanisa kwemaitiro uye maitiro ekufamba

Musiyano wakanyanya kujeka pakati pekukungurutsa mabhengi uyeplain bearingskuvapo kana kusavapo kwezvinhu zvinokunguruka.

Rolling mabheji ane zvinhu zvinokunguruka (mabhora, cylindrical rollers, tapered rollers, tsono rollers) dzinovimba nekutenderera kwavo kutsigira shaft inotenderera, saka chikamu chekusangana inzvimbo, uye zvimwe zvinotenderedza, zvinonyanya kuonana.

Plain bearingsisina zvinhu zvinotenderedza uye vimba nenzvimbo dzakatsetseka kuti dzitsigire shaft inotenderera, saka chikamu chekusangana chiri pamusoro.

 

Musiyano muchimiro chezviviri izvi unoona kuti mafambiro eiyo rolling bearing ari kukunguruka, uye mafambiro eiyo inotsvedza inotsvedza, saka mamiriro ekuputika akasiyana zvachose.

 

2. Kuenzanisa kwekutakura simba

Kazhinji, nekuda kwenzvimbo yakakura yekutakura yeberedhi inotsvedza, kutakura kwayo kunowanzo kukwirira kupfuura iyo yekutenderedza inotenderedza, uye inotenderedza inotakura kutakura mutoro wekukanganisa haina kukwirira, asi iyo yakazara-yakazara-lubricated fani inogona kutakura. hukuru hwekukanganisa mutoro nekuda kwebasa rekusimudza uye vibration absorption nekuda kweiyo mafuta ekuzora firimu. Kana kukurumidza kutenderera kwakakwirira, simba re centrifugal rezvinhu zvinokungurusa mubheji rinoputika rinowedzera, uye simba rayo rekutakura rinoderedzwa (ruzha runowanzo kuitika pakumhanya kukuru). Kana iri dynamic plain bearings, simba ravo rekutakura rinowedzera nekumhanya kwepamusoro.

 

3. Kuenzanisa kwe friction coefficient uye kutanga kupikisa kuramba

Pasi pemamiriro ekushanda akajairika, friction coefficient ye rolling bearings yakaderera pane iyo plain bearings, uye kukosha kwakanyanyisa. Iko kutsvedza kwemabhengi ekutsvedza kunokanganiswa zviri nyore nezvinhu zvekunze senge kumhanya uye kuzunguza, uye friction coefficient inosiyana zvakanyanya.

 

Pakutanga-kumusoro, kushorwa kwakakura kupfuura kweiyo inotenderedza bearing nekuti iyo inotsvedza haisati yagadzira yakagadzikana firimu remafuta, asi iyo yekutanga friction resistance uye kushanda friction coefficient ye hydrostatic sliding bearing idiki kwazvo.

 

4. Kuenzanisa kwekushanda kushanda nokukurumidza

Nekuda kwekudzikiswa kwesimba re centrifugal yechinhu chinotenderedza uye tembiricha yekukwira kweiyo faniro, kumhanya kweiyo rolling bearing haigone kukwira zvakanyanya, uye inowanzoenderana nepakati uye yakaderera kumhanya mamiriro ekushanda. Mvura isina kukwana yerubricated bearings nekuda kwekupisa uye kupfeka kwekutakura, kumhanya kwekushanda hakufaniri kunge kwakanyanyisa. Iko-kumhanya-mhanya kweiyo yakazara-yakazara-lubricated bearings yakanaka kwazvo, kunyanya kana iyo hydrostatic plain bearings ichizorwa nemhepo, uye kumhanya kwavo kwekutenderera kunogona kusvika 100,000 r/min.

 

5. Kuenzanisa kwekurasikirwa kwesimba

Nekuda kweiyo diki friction coefficient ye rolling bearings, kurasikirwa kwavo kwesimba kazhinji hakusi kukuru, kuri kushoma pane iyo isina kukwana mvura ine lubricated bearings, asi inozowedzera zvakanyanya kana yaiswa mafuta uye yakaiswa nemazvo. Kurasika kwemagetsi emagetsi akazara-rubricated mabearings kwakadzikira, asi kune hydrostatic plain bearings, kurasikirwa kwesimba rose kunogona kunge kwakakwira kupfuura kweiyo hydrostatic plain bearings nekuda kwekurasikirwa kwepombi yemafuta.

 

6. Kuenzanisa kwehupenyu hwebasa

Nekuda kwepesvedzero yegomba uye kuneta, mabheji anotenderera anowanzo gadzirirwa 5 ~ 10 makore, kana kutsiviwa panguva yekugadziridza. Mapadhi emabhengi asina kukwana emvura-rubricated anopfekwa zvakanyanya uye anoda kuchinjwa nguva nenguva. Hupenyu hwemabhengi akazara emvura-rubricated ane theoretically haana muganho, asi mukuita kuneta kutadza kwezvinhu zvinotakura zvinogona kuitika nekuda kwekunetsekana kwebhasikoro, kunyanya kune dynamic plain bearings.

 

7. Kuenzanisa kwekutenderera kutendeseka

Rolling mabhengi anowanzo kuve nekutenderera kwakanyanya nekuda kweiyo diki radial clearance. Iyo isina kukwana liquid lubricated bearing iri mumamiriro ekugadzika lubrication kana yakasanganiswa lubrication, uye kushanda hakuna kugadzikana, uye kupfeka kwakakomba, uye kunyatsoita kwakaderera. Nekuda kwekuvapo kwefirimu remafuta, iyo yakazara-libricated inotakura macushion uye inotora vibration nehupamhi hwechokwadi. Hydrostatic plain bearings ine yakakwirira kutenderera kwechokwadi.

 

8. Kuenzanisa kwezvimwe zvinhu

Rolling mabheji anoshandisa mafuta, girisi kana mafuta akasimba, huwandu hwacho hudiki kwazvo, huwandu hwacho hwakakura pakumhanya, kuchena kwemafuta kunodiwa kuve kwakakwira, saka inofanirwa kuiswa chisimbiso, asi kutakura kuri nyore kutsiva. , uye kazhinji hazvidi kugadzirisa magazini. Kune mabheji akajeka, mukuwedzera kune asina kukwana emvura ekuzora mabheji, mafuta ekuzora anowanzo kuve emvura kana gasi, huwandu hwacho hwakakura kwazvo, hutsanana hwemafuta hunodiwa zvakare hwakanyanya, mapedhi anotakura anofanirwa kutsiviwa kazhinji, uye dzimwe nguva bhuku rinogadziriswa. .

 

Kusarudzwa kwemabhengi ekutenderera uye plain bearings

Nekuda kwekuoma uye kwakasiyana chaiko kwemamiriro ekushanda, hapana chiyero chakabatana chekusarudzwa kwemabhengi ekutenderera uye kutsvedza. Nekuda kweiyo diki friction coefficient, kudiki kwekutanga kuramba, kunzwa, kugona kwakanyanya, uye kumisa, mabearings anotenderedzwa ane hunyanzvi hwekuchinjisa uye kuita zvakasiyana-siyana, uye ari nyore kushandisa, kuisa mafuta uye kuchengetedza, uye anowanzo kupihwa pekutanga mukusarudzwa, saka anoshandiswa zvakanyanya. mune general machines. Plain Bearings pachawo ane mamwe mabhenefiti akasarudzika, ayo anowanzo shandiswa mune dzimwe nguva apo rolling mabheji haigone kushandiswa, isingaite kana pasina mabhenefiti, senge anotevera zviitiko:

 

1. Iyo radial nzvimbo saizi ishoma, kana kuiswa kunofanirwa kukamurwa

Nekuda kwemhete yemukati, mhete yekunze, rolling element uye cage muchimiro, saizi yeradial yekutenderera inotakura yakakura, uye iko kushandiswa kunogumira kune imwe nhanho. Tsono roller mabearings anowanikwa kana radial dimensions yakasimba, uye kana zvichidikanwa, plain bearings inodiwa. Kune zvikamu zvisingaite kuti zvive nemabhengi, kana kuti zvisingagoni kukwidzwa kubva kune axial direction, kana apo zvikamu zvinofanira kupatsanurwa kuita zvikamu, kupatsanurwa kwebhengi kunoshandiswa.

 

2. High-chaizvo zviitiko

Kana fanidzo inoshandiswa iine yakakwira chaiyo zvinodiwa, inotsvedza inosarudzwa kazhinji, nekuti mafuta ekuzora firimu reanotsvedza rinogona kubvongodza vibration absorption, uye kana iko kurongeka kwakakwira zvakanyanya, chete hydrostatic sliding bearing inogona kusarudzwa. Pamakina ekukuya uye epamusoro-soro, midziyo yakasiyana-siyana, nezvimwewo, mabhengi ekutsvedza anoshandiswa zvakanyanya.

 

3. Zviitiko zvinorema

Rolling bearings, angave mabhora ebhora kana roller bearings, anowanzopisa uye kuneta mumamiriro ekurema-basa. Naizvozvo, kana mutoro wacho wakura, mabhengi ekutsvedza anonyanya kushandiswa, senge milling, turbines, aero injini accessories uye muchina wemigodhi.

 

4. Dzimwe nguva

Semuyenzaniso, kumhanya kwekushanda kwakanyanya kukwirira, kuvhunduka uye kudedera kwakakura zvisingaite, uye kukosha kwekushanda mumvura kana corrosive media, nezvimwewo, kutsvedza mabhengi kunogonawo kusarudzwa zvine musoro.

 

Kune rudzi rwemichina nemidziyo, kushandiswa kwemabhengi ekutenderera uye kutsvedza mabhengi, imwe neimwe ine zvayakanakira nezvayakaipira, uye inofanirwa kusarudzwa zvine musoro pamwe chete neprojekti chaiyo. Kare, macrusher makuru uye epakati nepakati aiwanzo shandisa sliding bearings akakandwa nebabbitt, nekuti aikwanisa kushingirira mitoro mikuru, uye airamba kupera uye akagadzikana. Iyo diki shaya crusher inonyanya kushandiswa ine rolling bearings, ine yakanyanya kutapurirana kunyatsoita, inonzwa zvakanyanya uye nyore kuchengetedza. Nekuvandudzwa kweiyo tekinoroji level yekugadzira rolling bearing, mazhinji emagetsi mahombe anotsemura shaya anoshandiswawo mu rolling bearings.