Chii chinonzi clearance uye clearance inoyerwa sei pamabhengi ekutenderera?

Kubvisirwa kwebhengi inotenderedza ndiyo yakanyanya kuwanda yebasa inobata imwe mhete panzvimbo uye imwe mu radial kana axial direction. Iyo yakanyanya kuita padivi peiyo radial nhungamiro inonzi radial clearance, uye iyo yakanyanya chiitiko pamwe neaxial kutungamira inonzi axial clearance. Kazhinji kutaura, iyo yakakura iyo radial clearance, yakakura iyo axial clearance, uye zvinopesana. Zvinoenderana nemamiriro ekubereka, kubvumidzwa kunogona kukamurwa mumhando nhatu dzinotevera:

I. Chekutanga clearance

Free clearance isati yatakura kuiswa. Iyo yepakutanga clearance inotarirwa nekugadziriswa kwemugadziri uye kusangana.

2. Isai clearance

Iyo inozivikanwawo sefit clearance, ndiyo clearance kana iyo yekubereka uye shaft uye yekubereka imba yakaiswa asi isati yashanda. Iyo yekumisikidza clearance idiki pane yepakutanga clearance nekuda kwekukanganisa kukwira, kungave kuwedzera mhete yemukati, kuderedza mhete yekunze, kana zvese zviri zviviri.

3. Kubvumirwa kwebasa

Kana kutakura kuri mumamiriro ekushanda, kupisa kwemukati kwemhete kunokwira kusvika pakakwirira uye kuwedzera kwekushisa kusvika pakakwirira, kuitira kuti kusununguka kwekutakura kunoderera. Panguva imwecheteyo, nekuda kwekuita kwemutoro, elastic deformation inoitika panzvimbo yekubatana pakati pemuviri unotenderera uye mujaho, izvo zvinowedzera kutakura kubvumidzwa. Kunyangwe iyo yekutakura yekushanda clearance yakakura kana idiki pane inokwirisa clearance zvinoenderana neyakasanganiswa mhedzisiro yezvinhu zviviri izvi.

Mamwe mabheji anokunguruka haagone kugadziridzwa kana kubviswa. Iwo anowanikwa mumhando nhanhatu, kubva ku0000 kusvika ku5000; Kune mhando 6000 (angular contact bearings) uye mhando 1000, Type 2000 uye Type 3000 ine maburi ekoni mumhete yemukati. Iyo inokwirisa yemvumo yeaya marudzi ekutenderedza mabheji, mushure mekugadzirisa, ichave idiki pane yepakutanga clearance. Mukuwedzera, mamwe mabheji anogona kubviswa, uye chibvumirano chinogona kugadziriswa. Kune marudzi matatu emabhengi: Type 7000 (tapered roller bearing), type 8000 (thrust ball bearing) uye type 9000 (thrust roller bearing). Iko hakuna mvumo yepakutanga mumhando nhatu idzi dzemabheya. Kune mhando 6000 uye mhando 7000 rolling bearings, iyo radial clearance inodzikiswa uye iyo axial clearance inoderedzwawo, uye zvinopesana, nepo yemhando 8000 uye mhando 9000 rolling mabearings, iyo axial clearance chete ndiyo inonyanya kukosha.

Yakakodzera mounting clearance inofambisa yakajairika kushanda kweiyo rolling bearing. Iyo clearance idiki kwazvo, iyo inoputika tembiricha inokwira, haigone kushanda zvakajairika, zvekuti muviri unotenderedza unobatirira; Yakawandisa clearance, midziyo vibration, rolling inobereka ruzha.

Iyo radial clearance yekuongorora nzira ndeiyi inotevera:

I. Sensory nzira

1. Nemaoko anotenderera kutakura, kutakura kunofanira kuva kwakatsetseka uye kushanduka pasina kunamatira uye astringency.

2. Zunza mhete yekunze yeberengi neruoko. Kunyangwe kana iyo radial clearance ingori 0.01mm, iyo axial kufamba kweiyo yepamusoro poindi yekubereka ndeye 0.10-0.15mm. Iyi nzira inoshandiswa kune imwechete mutsara wecentripetal bhora.

Chiyero nzira

1. Tarisa uye usimbise nzvimbo yakakura yekuremerwa kwekutakura neanonzwa, isa mhepo pakati pemuviri unotenderera 180 ° uye yekunze (yemukati) mhete, uye hupamhi hwakakodzera hwekunzwa ndiko kubviswa kweradial yekutakura. Iyi nzira inoshandiswa zvakanyanya mu-self-aligning bearings uye cylindrical roller bearings.

2, tarisa nedhiyabhorosi chiratidzo, tanga waisa iyo dial chiratidzo kune zero, wozosimudza inotenderedza inotakura mhete yekunze, iyo dial chiratidzo kuverenga ndiyo radial clearance yekutakura.

Nzira yekuongorora yeaxial clearance ndeiyi inotevera:

1. Sensory nzira

Tarisa axial clearance ye rolling bearing nemunwe wako. Iyi nzira inofanira kushandiswa kana shaft inopera ichionekwa. Kana iyo shaft yakavharwa kana isingakwanise kuongororwa neminwe kune zvimwe zvikonzero, tarisa kana shaft ichichinjika mukutenderera.

2. Kuyera nzira

(1) Tarisa nemunzwi. Iyo nzira yekushanda yakafanana neyekutarisa radial clearance ne feeler, asi iyo axial clearance inofanirwa kunge iri.

C = lambda/chivi (2 beta)

Iko c -- axial clearance, mm;

-- Geji ukobvu, mm;

-- Bearing cone angle, (°).

(2) Tarisa nedhiyabhorosi chiratidzo. Kana iyo crowbar ichishandiswa kuendesa shaft inofamba kune mbiri yakanyanyisa zvinzvimbo, mutsauko wedhiyani chiratidzo chekuverenga ndiyo axial clearance yekutakura. Nekudaro, iyo simba rinoiswa kune crowbar harifanirwe kunge rakakura zvakanyanya, zvikasadaro goko rine elastic deformation, kunyangwe iyo deformation iri diki kwazvo, ichakanganisa kurongeka kwekuyerwa kweaxial clearance.