Bearing ke eng?

Lentsoe “bearing” le tsoa ho bere, e bolelang ho tšehetsa kapa ho jara.

Ha ho e-na le motsamao o lekanyelitsoeng pakeng tsa likarolo tse peli ’me haeba karolo e ’ngoe e tšehetsa e ’ngoe, karolo e tšehetsang e tsejoa e le bearing.

Kahoo, bearing ke karolo ea mochini ea karolo ea mochini e ts'ehetsang ntho e 'ngoe ea mochini kapa karolo e tsamaeang le eona.

Motsamao o amanang o ka ba oa mola kapa oa rotary.

Joalo ka ha enjine e tšela lihlooho le litataiso, litataiso li sebetsa joalo ka li-bearings le metsamao e amanang le eona e le mola. Ka mokhoa o ts'oanang, mekhoa ea mechini ea ho sila le metjhini ea polane e ka nkuoa joalo ka libere.

Joalo ka maemong a li-spindle tsa lathe, mechini ea ho cheka le e borehang, li-axle tsa likoloi, li-crankshaft, joalo-joalo, motsamao o lekanyelitsoeng lipakeng tsa tsena le ho bea ke oa rotary.

Tlhokahalo ea Bearings.

Hoo e batlang e le mefuta eohle ea mechine, ho sisinyeha kapa matla a tlameha ho fetisoa ka li-shafts tse potolohang, tseo le tsona li tšoaroang ke li-bearings.

Li-bearings tsena li lumella ho potoloha ho sa lefelloeng le ho boreleli ha li-shafts tse nang le likhohlano tse fokolang. Ho lahleheloa ke matla kapa ho sisinyeha ho ka fokotsoa ka lubrication e loketseng ea libaka tse behang.

Tlhokahalo kapa tlhoko ea li-bearings ke tsa merero e 'meli e latelang.

1. Ho fana ka ts'ehetso ho li-shafts tse potolohang.

2. Ho lumella ho potoloha ka bolokolohi le ho boreleli ha li-shafts.

3. Ho jara meroalo e matla.

Mefuta ea ho Beha.

Ka kakaretso, li-bearings li ka aroloa ka mefuta e 'meli ka tsela e latelang:

1. Li-bearings tse thellang le;

2. Li-bearings tse thellang kapa tse thibelang khohlano.

1. Sliding Contact Bearings;

Li-bearings le li-shaft li na le motsamao o lekanyelitsoeng ka lebaka la ho thella ha tsona mabapi le tse ling. Ka kakaretso, li-bearings tsohle tse sa sebeliseng lirolara le libolo li ka bitsoa li-bearings tse thellang.

Sliding Contacts Bearings li arotsoe ka mefuta e latelang.

ke. Right Line kapa Guide Bearing;

Haeba tataiso ea motsamao o lekanyelitsoeng le ho thellela ha bokaholimo li bapa, ho beleha ho tsejoa e le mola o nepahetseng kapa motataisi, mohlala, litataiso holim'a lihlooho tsa enjine, litsela tsa mochini o silang le li-spindle tsa metjhini ea ho cheka le e tenang.

ii. Radial kapa Journal Bearing;

Haeba motsamao o lekanyelitsoeng lipakeng tsa shaft le bearing o potoloha mme haeba mojaro o sebetsa ka tsela e ts'oanang le axis ea shaft kapa haufi le radius ea shaft, beararing e tsejoa e le "jeneral bearing" kapa "radial bearing".

Karolo ea shaft e kentsoeng ke bering e tsejoa e le journal.

iii. Ho beleha;

Haeba mojaro o bering o bapa le axis ea shaft, ho jara ho tsejoa e le "thrust bear".

iv. Mohato oa Leoto kapa Pivot Bearing;

Ho thrust bear, haeba ntlha ea shaft e fela ka ho phomola sebakeng se otlolohileng, e tsejoa e le footstep bearing kapa pivot bear.

v. Collar Bearing;

Ho pushing, haeba lipheletso tsa shaft li fetela ka nģ'ane 'me ka holim'a bokaholimo, e tsejoa e le collar beararing. Axis ea shaft e lula e tšekaletse.

vi. Bushed Bearing;

Mofuta o bonolo oa ho beha sehlahla o bontšoa ho ##Fig. 1.8 ka tlase. E na le 'mele oa tšepe ea tšepe le sehlahla se entsoeng ka koporo kapa sethunya.

Mmele o na le motheo wa kgutlonne. Setsi se entsoe sekoti ho fokotsa sebaka sa machining. Ho fanoa ka masoba a mabeli a elliptical botlaaseng ba ho koala sekheo.

Ho fanoa ka lesoba la oli karolong e ka holimo ea 'mele e phallang har'a sehlahla. Kahoo, lubrication e ka etsoa bakeng sa shaft le sehlahla ka lesoba la oli.

Bophara bo ka hare ba sehlahla bo lekana le bophara ba shaft. Sehlahla se behiloe ka sekoti sa grub e le hore ho potoloha kapa ho thella ha sona hammoho le shaft ho thibeloe.

Haeba sehlahla se fela, se nkeloa sebaka ke se secha. The shaft e ka kenngoa ka har'a bearing end-wise feela. Ena ke bofokoli bo bong ba ho jara sena.

Bushed bear e fumana ts'ebetso ho meroalo e bobebe le lebelo le tlase.

vii. Pedestal Bearing;

Pedestal bearing e tsebahala haholo e le Plummer block. E boetse e bitsoa ho petsoha kapa ho arola koranta e behang.

E na le boloko ba tšepe e entsoeng ka tšepe e bitsoang pedestal, kepisi ea tšepe e entsoeng ka tšepe, lithunya tsa brasses ka lihalofo tse peli, litšepe tse peli tse bonolo tsa square-head blots le lihlopha tse peli tsa linotlolo tsa hexagonal joalokaha ho bontšitsoe ho ##Fig. 1.9 ka tlase.

Thepa ke mofuta o arohaneng; e entsoe ka likarolo tse peli.

Karolo e ka holimo e bitsoa cap, e tlamelletsoeng 'meleng o ka sehloohong o bitsoang pedestal ka liboutu tse nang le li-square-headed le linate tsa hexagonal.

Ho petsoha hona kapa ho arola ha sehlahla ho nolofaletsa ho beha le ho tlosoa ha shaft habonolo hammoho le halofo ea sehlahla se arohaneng.

Lihlahla tse arohaneng li tsejoa e le brasses kapa mehato.

Snug e fanoa ka sehlahla se ka tlaase se arohaneng se kenang ka mokoting o fanoeng 'meleng.

E le hore ho potoloha ha sehlahla ho thibeloe hammoho le sefate, 'me motsamao oa axial o thibeloe ka li-collar flanges lipheletsong.

Thepa e arohaneng ea sehlahla ke koporo, boronse, tšepe e tšoeu, joalo-joalo.

Shaft e lutse holim'a sehlahla se arohaneng se tlase. Sehlahla se ka holimo se arohaneng se behoa holim'a sefate, 'me qetellong, sekoahelo se tiisitsoe.

Ho setse sebaka se senyane pakeng tsa kepisi le 'mele e thusang ha sekoahelo se theoleloa ka lebaka la ho pholosa sehlahla ka lilara tse ncha.

Sebaka sena se fumana ts'ebeliso ea sona ka lebelo le phahameng le litsela tse sa tšoaneng tsa mojaro.

viii. Ho beha maoto kapa Pivot behang.

Boemong ba maoto kapa pivot, khatello e sebetsa ho bapa le axis ea shaft 'me shaft e lutse ka lehlakoreng le leng la eona.

E na le boloko ba sedikadikwe sa tshepe e otlolohileng kapa mmele o nang le motheo wa kgutlonne le sehlahla sa sethunya, jwaloka ha ho bontshitswe ho ##Fig. 1.10 ka tlase.

Sebaka se na le sebaka se bulehileng seo shaft e kenngoa ka eona. Shaft e lutse ka ho otloloha holim'a diski ea tšepe e nang le lekhalo la khoho.

Diski e thibetsoe ho potoloha hammoho le shaft ka pini e kentsoeng halofo ea disc le 'mele.

Ho potoloha ha sehlahla hammoho le shaft ho thijoa ka ho phunya molaleng oa eona ka tlas'a molala.

Li-bearings tsena li fumana lits'ebetso mochining oa masela, pampiri, joalo-joalo, tse sebelisetsoang meroalo e bobebe le lebelo le tlase.

Ha ho etsoa mehato, ho thata ho tlotsa oli kaha oli e lahleloa ka ntle ho tloha bohareng ka matla a centrifugal.

2. Rolling Contact Bearings kapa Anti-friction Bearings.

Ka li-bearings tsa ho kopanya, ho sisinyeha ho amanang pakeng tsa shaft le ho bea ho bakoa ke ho pota-pota ha libolo le li-rollers tse sebelisoang ka li-bearings.

Ka hona, tsena li bitsoa li-bearings tsa ho kopanya kapa bolo le li-roller bearings.

Khohlano e tlase haholo ho feta ea li-bearings tse thellang, 'me ho na le ho hohla ho fokolang ha mochini ho hlokang hore hangata ho qale le ho emisa tlas'a mojaro.

Ka hona, li-bearings tsena li bitsoa li-anti-friction bearings.

Ho na le mefuta e 'meli ea li-anti-friction bearings,' me tsona ke;

1. Li-ball bearings le;

2. Ho roala rolara.

ke. Li-Ball Bearings;

Libolo tsa spherical li sebelisoa li-ball bearings.

Ho na le mefuta e 'meli ea li-ball bearings;

(ke) Radial ball bearings le (ii) Li-ball bearings.

Li-radial ball bearings li sebelisetsoa ho jara meroalo ea radial kapa meroalo e ts'oanang le axis ea li-shafts, ha li-thrust bearings li sebelisoa bakeng sa meroalo ea ho phunya, ke hore, meroalo e tsamaeang ka tsela e tšoanang le axis ea shaft.

Li-ball bearings di sebedisoa ho jara meroalo e kgwehlang hodima metsu.

Li entsoe ka libolo tsa tšepe tse thata tse behiloeng pakeng tsa merabe e 'meli. Lipeiso ke mehele ea tšepe e thata e entsoeng ka grooved. Peiso e 'ngoe e potoloha hammoho le shaft,' me e 'ngoe e tsitsitse ka tlung ea ho beha.

Libolo li bolokoa boemong ka li-cages. Li-cage ke li-separators tsa libolo tse entsoeng ka koporo e hatelitsoeng.

Tlhophiso ea "thrust bearing" e bonts'itsoeng ho ##Fig. 1.11 ka tlase. Li-bearings tsa thrust ball li sebelisoa ho fihlela lebelo la 2000 rpm.

Bakeng sa lebelo le phahameng la meroalo ea li-thrust, ho sebelisoa li-angular ball bearings. Tlas'a lebelo le phahameng, libolo li qobelloa ho tsoa peisong ka lebaka la matla a centrifugal a ntlafalitsoeng ka har'a li-thrust bearings.

ii. Roller Bearings;

Li-roller bearings li ka hlalosoa e le li-bearings tsa radial roller le li-thrust roller bearings. Li-roller tsa radial le thrust li jara meroalo ea radial le thrust ka ho latellana.

Li-bearings tsena ka bobeli li ka aroloa ho latela mefuta ea lirolara tse sebelisoang, joalo ka li-cylindrical roller bearings, li-bearings tsa nale, le li-roller bearings.

Ha li bapisoa le li-ball bearings, li-roller bearings li hlahisa likhohlano tse ngata empa li na le matla a mangata. Bakeng sa lits'ebetso tsa mojaro o bobebe, ho sebelisoa li-ball bearings tseo tlhokomelo ea tsona e leng tlase ho ea boholo bo lekanang.

Leha ho le joalo, haeba mojaro o batla o le boima 'me li-bearings li tlameha ho ts'oaroa ke tšabo, ho sebelisoa feela li-roller bearings.

Melemo le go tlhoka mesola ea bolo le rolara dibering;

Ha e bapisoa le li-bearings tse thellang, li-bearings tsa ho kopana li na le melemo le mathata a latelang.

Melemo.

1. Khohlano ea ho qala le ho matha e tlase.

2. Ho nkela sebaka ho bonolo.

3. E ka sebelisoa bakeng sa meroalo ea radial le axial.

4. Lubrication e bonolo.

5. Litšenyehelo tsa ho hlokomela li tlase.

Mefokolo.

1. Theko e phahameng ea pele.

2. Ho thata ho hlokomela ketsahalo ya ho hloleha ho jara.

3. Ho hlokahala machining a phahameng a nepahetseng bakeng sa ho beha matlo.