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Ho beha thota

Ho beha thota

Plain bearing ke bering e sebetsang tlas'a khohlano e thellang. Thepa e thellang e sebetsa ka thelelo, ka botshepehi le ntle le lerata. Tlas'a maemo a lubrication ea mokelikeli, sebaka se thellang se aroloa ka oli e tlotsang ntle le ho kopana ka ho toba, 'me tahlehelo ea likhohlano le ho roala holimo ho ka fokotseha haholo. Filimi ea oli e boetse e na le matla a itseng a ho monya ho sisinyeha. Empa khanyetso e qalang e batla e le khōlō. Karolo ea shaft e tšehelitsoeng ke bering e bitsoa makasine, 'me likarolo tse tsamaellanang le makasine li bitsoa sehlahla se behang. E le ho ntlafatsa thepa ea ho ferekanngoa ha lesela la ho bea, lesela la lintho tse khahlanong le ho ferekana le lahleloa holim'a bokahare bo ka hare le bitsoa bearing liner. Lisebelisoa tsa lihlahla tse nang le lihlahla le li-linings tse belehang li bitsoa ka kopanelo e le lisebelisoa tse thellang. Lisebelisoa tsa li-sliding bearing hangata li tlas'a maemo a lebelo le phahameng le boima bo bobebe.

Karolo ea sehlooho:
Lisebelisoa tse sebelisoang ka mokhoa o hlakileng li kenyelletsa li-alloys (tseo hape li bitsoang Babbitt kapa li-alloys tse tšoeu), tšepe e sa sebetseng ea ho roala, li-alloys tse thehiloeng ka koporo le aluminium, lisebelisoa tsa tšepe tsa phofo, polasetiki, rabara, lehong le thata le carbon-graphite, polytetrafluoroethylene (Flon e khethehileng. , PTFE), polyoxymethylene e fetotsoeng (POM), joalo-joalo.
Thota e monya le ho fetisa matla pakeng tsa likarolo tse tsamaeang tse amanang, 'me e boloka boemo le boemo bo nepahetseng ba likarolo tse peli. Holim'a moo, motsamao oa tataiso o tlameha ho fetoloa motsamao oa rotary (joalo ka enjene ea piston e khutlisang).

Ho beha thota

Sebopeho sa sebopeho:
Khohlano e thellang e etsahala ha li-bearings tse hlakileng li sebetsa; boholo ba khohlano e thellang haholo-holo bo itšetlehile ka ho nepahala ha tlhahiso; 'me boholo ba likhohlano tsa libere tse thotang haholo-holo bo itšetlehile ka thepa ea sebaka se thellang sa bering. Li-bearings tse hlakileng ka kakaretso li na le mosebetsi oa ho itlotsa holim'a sebaka se sebetsang; li-sliding bearings li arotsoe ka li-bearings tse se nang tšepe tse thellang le li-bearings tsa tšepe tse thellang ho ea ka thepa ea tsona.
Li-bearings tse se nang tšepe li entsoe haholo-holo ka li-bearings tsa polasetiki. Li-bearings tsa polasetiki ka kakaretso li entsoe ka lipolasetiki tsa boenjiniere tse nang le ts'ebetso e ntle; baetsi ba litsebi tse ngata ka kakaretso ba na le theknoloji ea ho fetola polasetiki ea boenjiniere, ka fiber, litlolo tse khethehileng, likhaba tsa khalase 'Me joalo-joalo ho ntlafatsa phetoho ea ho itlotsa ea lipolasetiki tsa boenjiniere ho finyella ts'ebetso e itseng, ebe ba sebelisa li-plastiki tse fetotsoeng ho iketsetsa li-lubricating. libere tsa polasetiki ka ho bopa ka ente.
Sehlahisoa sa tšepe se sebelisoang haholo mathoasong a lekholo la bo21 la lilemo ke bethe ea likarolo tse tharo. Mofuta ona oa ho jara hangata o thehiloe holim'a poleiti ea tšepe ea carbon. Lera la phofo ea koporo e chitja e tšeloa holim'a poleiti ea tšepe ka theknoloji ea sintering, ebe lesela la koporo le chesoa. Lera e ka holimo e sintered le lera la PTFE lubricant e ka bang 0.03mm; mosebetsi o ka sehloohong oa karolo e bohareng ea phofo ea koporo ea spherical ke ho matlafatsa matla a ho kopanya pakeng tsa tšepe ea tšepe le PTFE, ha e le hantle, e boetse e phetha karolo ea ho jara le ho tlotsa nakong ea mosebetsi.

Ho beha thota

Lisebelisoa tsa tlhahiso:
1) Lisebelisoa tsa tšepe, tse kang li-alloys tse nang le li-alloys, boronse, li-alloys tse thehiloeng ka aluminium, li-alloys tse thehiloeng ho zinki, joalo-joalo.
Ho jara li-alloys: li-alloys tse nang le li-alloys li boetse li bitsoa li-alloys tse tšoeu. Haholo-holo ke li-alloys tsa tin, lead, antimony kapa litšepe tse ling. Ka lebaka la ho hanyetsa ha bona ho apara hantle, polasetiki e phahameng, ts'ebetso e ntle ea ho sebetsa, conductivity e ntle ea mocheso le ho hanyetsa hantle sekhomaretsi le oli E na le adsorption e ntle, kahoo e loketse mojaro o boima le lebelo le phahameng. Matla a alloy a bering a nyane mme theko e theko e boima haholo. Ha e sebelisoa, e tlameha ho lahleloa holim'a boronse, lebanta la tšepe kapa lihlahla tse nang le tšepe e entsoeng ka tšepe ho etsa lesela le lesesaane.
2) Lisebelisoa tsa tšepe tse nang le porous (lisebelisoa tsa metallurgy tsa phofo)
Lintho tse entsoeng ka tšepe: tšepe e nang le porous ke mofuta oa thepa ea phofo. E na le sebopeho sa porous. Haeba e qoelisoa ka oli e tlotsang, li-micropores li tlatsitsoe ka oli e tlotsang, 'me e fetoha bere e nang le oli e nang le thepa ea ho itlotsa. Lisebelisoa tsa tšepe tse nang le porous li na le boima bo tlaase 'me li loketse feela bakeng sa mojaro o tsitsitseng o se nang tšusumetso le maemo a mahareng le a tlaase a lebelo.
3) Lisebelisoa tse se nang tšepe
Ho jara li-plastiki: Li-plastiki tse sebelisoang ka tloaelo li kenyelletsa polasetiki ea phenolic, nylon, polytetrafluoroethylene, joalo-joalo. Li boetse li na le thepa ea ho itlotsa, empa li na le conductivity e fokolang ea mocheso.

Ho beha thota

Tšenyo le thibelo:
tšenyo:
Ha "sliding bearing" e ntse e sebetsa, likhohlano li tla hlaha ka lebaka la ho kopana pakeng tsa koranta le sehlahla se behang, ho fella ka ho futhumala ha holim'a metsi, ho roala esita le ho "ts'oara". Ka hona, ha ho etsoa ho qaptjoa, lisebelisoa tse thellang tse nang le thepa e ntle ea ho thibela likhohlano li lokela ho sebelisoa ho etsa sehlahla se behang, le lubricant e loketseng Le ho sebelisa mokhoa o loketseng oa ho fana ka mokhoa oa ho ntlafatsa sebopeho sa ho jara ho fumana lubrication e teteaneng ea filimi.
1. Ho bola ha bokaholimo ba lithaele: Tlhahlobo ea spectral e fumane hore bongata ba likarolo tsa tšepe tse se nang ferrous ke ntho e sa tloaelehang; ho na le likaroloana tse ngata tsa li-sub-micron tse apereng likarolo tsa tšepe tse se nang ferrous ka har'a spectrum; mongobo oa oli e tlotsang o feta tekanyo, 'me boleng ba asiti bo feta tekanyetso.
2. Corrosion holim'a koranta: Tlhahlobo ea spectral e fumane hore khatello ea tšepe e sa tloaeleha, ho na le likaroloana tse ngata tsa sub-micron tsa tšepe sebakeng sa tšepe, 'me boleng ba mongobo kapa acid ea lubricant bo feta tekanyo.
3. Mathata holim'a koranta: ho na le likaroloana tsa abrasive tse thehiloeng ka tšepe kapa likaroloana tse ntšo tsa oxide ka har'a tšepe, 'me bokaholimo ba tšepe bo na le' mala o halefileng.
4. Ho roaleha ka morao ho tile: Tlhahlobo ea spectral e fumane hore tšepe ea tšepe e sa tloaeleha. Ho na le likaroloana tse ngata tsa tšepe tse apereng li-sub-micron ka har'a spectrum ea tšepe, 'me mongobo oa oli le boleng ba asiti ha bo tloaelehe.
5. Ho jara khatello ea holim'a metsi: likaroloana tse senyang li fumanoa ka har'a tšepe ea tšepe, 'me likaroloana tsa abrasive li entsoe ka tšepe e se nang ferrous.
6. Ho phatloha ha lithaele: Ho na le likaroloana tse ngata tsa boholo bo boholo ba mokhathala oa alloy le likaroloana tsa abrasive tse fumanehang ka har'a mabone a tšepe.
7. Ho jara sehlahla se cheleng: Ho na le lithollo tsa abrasive tsa boholo bo boholo le li-oxide tsa tšepe tse nang le tšepe sebakeng sa tšepe.
8. Ho roala ho roala: ka lebaka la thepa ea tšepe ea shaft (bothata bo phahameng, tumello e fokolang) le mabaka a mang, ho bonolo ho etsa hore ho be le ho khomarela, ho roala ha abrasive, ho apara mokhathala, ho ferekanngoa le maemo a mang.

Ho beha thota

Mokhoa oa thibelo:
Thibelo ea mafome a pente: Mafome a pente a tšoauoa ka enjene e tiisitsoeng. Enjene e utloahala hantle qalong, empa ka mor'a nako ea polokelo, enjene e fetoha molumo o sa tloaelehang haholo, e tlosa mafome a matla a ho jara. Baetsi ba bangata ba tla nkoa e le bothata ba ho beha pele, bothata bo ka sehloohong ke hore pente e sireletsang pente e tsitsitseng ka mocheso o itseng, mongobo, ho bola ha tšepe le tšireletso, ho thehoa ha lintho tse senyang, li-bearings tse thellang li baka tšenyo ea ho senya.
Bophelo ba ho thella bo amana haufi-ufi le tlhahiso, ho kopanya le tšebeliso. Sehokelo se seng le se seng se tlameha ho sebelisoa ho etsa hore naha e be le monyetla o motle oa ho lelefatsa bophelo ba ho jara.
1. Ts'ebetsong ea ho hlahisa li-bearings tsa mochini oa ho roala, lik'hamphani tse ling ha lia ka tsa latela ka tieo melao ea ho hloekisa le e khahlanong le mafome le litlhoko tsa liphutheloana tsa oli tse thibelang mafome bakeng sa ho roala likarolo tsa ho roala mochine nakong ea ho sebetsa le ho roala mochine o nang le lihlahisoa tse felileng ka mor'a kopano. . Haeba nako ea phetoho ea ferrule e le telele haholo nakong ea phetoho, selikalikoe se ka ntle sa selikalikoe se kopana le mokelikeli o senyang kapa khase.
2. Boleng ba oli e tlotsang mafome, ho hloekisa parafine le lihlahisoa tse ling tse sebelisoang tlhahisong ke likhoebo tse ling ha li khone ho fihlela litlhoko tsa melaoana ea theknoloji ea ts'ebetso.
3. Ha theko ea mochini oa ho roala tšepe e nang le tšepe e theoha khafetsa, thepa ea mochini oa ho roala tšepe e ile ea theoha butle-butle. Ka mohlala, litaba tsa litšila tse se nang tšepe ka tšepe li phahame haholo (keketseho ea sebabole ka tšepe e fokotsa ho hanyetsa ha kutu ea thepa ka boeona), ho kheloha ha sebopeho sa metallographic, joalo-joalo Mochini oa ho roala o nang le tšepe o sebelisoang ke moetsi oa thepa, joalo-joalo. likhoebo ke tsa mehloli e tsoakiloeng, 'me boleng ba tšepe bo tsoakane.
4. Lik'hamphani tse ling li na le maemo a futsanehileng a tikoloho, maemo a phahameng a lintho tse kotsi moeeng, le sebaka se senyenyane haholo sa phetoho, ho etsa hore ho be thata ho etsa phekolo e sebetsang ea ho thibela mafome. Ho phaella moo, boemo ba leholimo bo chesang le tlōlo ea melao ea ho thibela ho bola ka basebetsi ba tlhahiso le tsona li teng.
5. Lik'hamphani tse ling tsa pampiri e khahlanong le mafome, pampiri ea nylon (mokotla) le tube ea polasetiki le mochini o mong oa ho roala o thellang o sa fihlelle litlhoko tsa liphutheloana tsa "rolling coater tse nang le oli e thibelang mafome le tsona ke e 'ngoe ea lintho tse bakang mafome. ho bola.
6. Lekhetho la ho fetola le ho sila la sliding bearing ring ea mochine oa ho roala likhoebong tse ling li nyenyane haholo, 'me sekala sa oxide le lera la decarburization holim'a selikalikoe se ka ntle se ke ke sa tlosoa ka ho feletseng.

Ho beha thota

Lihlahisoa tsa Lihlahisoa:
Ho na le mefuta e mengata ea li-sliding bearings:
① Ho ea ka tataiso e ka jarang moroalo, e ka aroloa ka mefuta e 'meli: li-bearings tsa radial (centripetal) le li-thrust (axial) tse thellang.
②Ho ea ka mofuta oa setlolo, e ka aroloa ka mekhahlelo e 7: li-bearings tse tlositsoeng ka oli, li-bearings tse tlositsoeng ka mafura, li-bearings tse tlotsitsoeng ka metsi, li-bearings tsa khase, li-bearings tse tiileng, li-magnetic fluid bearings le li-electromagnetic bearings.
③Ho ea ka botenya ba filimi e tlotsang, e ka aroloa ka li-bearings tse tšesaane tsa filimi le li-bearings tse teteaneng tsa filimi.
④Ho ea ka thepa e jereng, e ka aroloa ka li-bearings tsa boronse, li-bearings tsa tšepe tse entsoeng ka tšepe, li-bearings tsa polasetiki, li-gem bearings, li-bearings tsa phofo, li-bearings tse itšebetsang le li-bearings tse kenngoeng ka oli.
⑤Ho ea ka sebopeho sa ho beleha, e ka aroloa ka li-bearings tse chitja, li-elliptical bearings, li-bearings tse nang le oli tse tharo, li-step bearings, li-bearings tsa lieta le li-foil bearings.
Li-bearings li arotsoe ka likarolo tse arohaneng le tse kenyelletsoeng. E le ho ntlafatsa thepa ea ho ferekanngoa ha sehlahla se belehang, karolo e le 'ngoe kapa tse peli tsa lisebelisoa tse khahlanong le ho ferekanngoa hangata li lahleloa holim'a bophara bo ka hare ba ho jara, boo hangata bo bitsoang lesela la ho bea. Ka hona, ho na le lihlahla tse nang le bimetal le lihlahla tse nang le trimetal.
Lihlahla tse nang le lihlahla kapa li-linings tse jereng ke likarolo tsa bohlokoa tsa li-sliding bearings, 'me lisebelisoa tsa lihlahla tse nang le lihlahla le li-linings tsa ho jara li bitsoa ka kopanelo e le thepa ea ho jara. Kaha sehlahla se behang kapa sehlahla se nang le sehlahla se kopane ka kotloloho le koranta, hangata koranta ha e sebetse, ka hona, mokhoa o ka sehloohong oa ho hloleha oa ho beha ke ho roala.
Ho roala ha sehlahla se belehang ho amana ka ho toba le thepa ea koranta, thepa ea ho jara ka boeona, setlolo le boemo ba ho tlotsa. Lintlha tsena li lokela ho nahanoa ka botlalo ha ho khethoa thepa ea ho beleha ho ntlafatsa bophelo ba ts'ebeletso le ts'ebetso ea ts'ebetso ea bering e thellang.

Ho beha thota

Mokhoa oa tlhahiso:
Chaena, ho lokisa li-welding, bushing, pitting, joalo-joalo hangata li sebelisoa bakeng sa liaparo tsa ho thella. Leha ho le joalo, ha shaft e entsoe ka tšepe ea 45 # (e tingoe ebile e halefile), haeba ho sebelisoa feela holim'a marulelo, ho tla ba le welding. Ho imeloa kelellong, tlas'a moroalo o boima kapa opereishene e potlakileng, ho phunyeha kapa esita le ho robeha ho ka hlaha lehetleng la shaft. Haeba annealing ea khatello ea kelello e sebelisoa, ho thata ho sebetsa, 'me potoloho ea ts'ebetso e telele,' me litšenyehelo tsa tlhokomelo li phahame; ha thepa ea shaft e le HT200 , Tšebeliso ea tšepe ea tšepe e entsoeng ka tšepe ha e ntle. Lik'hamphani tse ling tse nang le theknoloji e phahameng ea tlhokomelo li tla sebelisa brush plating, laser welding, micro-arc welding esita le ho tjheseletsa serame, joalo-joalo. Hangata theknoloji ena ea tlhokomelo e hloka litlhoko tse phahameng le litšenyehelo tse phahameng.
Bakeng sa theknoloji ea ho lokisa e ka holimo, ha e tloaelehe ho lik'hamphani tsa Europe, Amerika, Japane le Korea. Linaha tse tsoetseng pele hangata li sebelisa theknoloji ea polymer composite le nanotechnology. Theknoloji ea polymer e ka sebetsoa sebakeng sa marang-rang, e ntlafatsang katleho ea tlhokomelo le ho fokotsa litšenyehelo tsa tlhokomelo le tokiso. matla.

Ho beha thota

Ela hloko bothata:
Li-bearings tse thellang li kopane ka holim'a metsi, kahoo filimi e itseng ea oli e tlameha ho bolokoa pakeng tsa libaka tsa ho kopana. Ka hona, lintlha tse latelang li lokela ho ela hloko ha ho etsoa moralo:
1. Etsa hore filimi ea oli e kene sebakeng sa likhohlano hantle.
2. Oli e lokela ho kena ka har'a bere ho tloha sebakeng se seng sa ho jara.
3. U se ke ua etsa hore groove e feletseng ea lesale la oli e bulehe bohareng ba ho beha.
4. Haeba thaele ea oli, bula groove ea oli sebakeng se kopaneng.
5. Etsa hore lesale la oli le tšepahale ka ho feletseng.
6. U se ke ua thibela lesoba la mafura.
7. U se ke ua theha sebaka se emeng sa oli.
8. Thibela likhahla tse bohale le likhutlo tse khaolang filimi ea oli.

Ho beha thota

letsatsi

28 October 2020

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Ho beha thota

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