Kedu ihe RPM na ndụ ọ bụla nwere ike nweta mgbanaka mbanye IP65 flat?
Mpempe mgbanaka dị larịị nwere ọkwa mkpuchi mkpuchi IP65 na-arụ ọrụ n'ofe ọsọ dị iche iche dabere na ngwa ahịhịa, ihe mgbanaka kọntaktị, yana ndokwa njikwa okpomọkụ wuru n'ime mgbakọ ụlọ. Ngalaba ụlọ ọrụ ọkọlọtọ na-agba ọsọ site na ihe dịka 10 RPM ruo 300 -500 RPM na-aga n'ihu, yana ụdị ọsịsọ dị elu pụrụ iche na-eru 1000-1500 RPM ebe a na-ejikọta ikuku jụrụ oyi ma ọ bụ akụkụ mmiri jụrụ oyi na nhazi ụlọ. Nhazi IP65 kwa IEC 60529 na-akọwapụta nchebe zuru oke megide ntinye uzuzu (nkọwa "6") yana nchebe megide jets mmiri nke a na-atụ anya site na 6.3mm nozulu na 12.5 lita / nkeji site na ntụziaka ọ bụla (ntụle "5").
Oke ọsọ na ihe mgbochi ọkụ
Ugbu a bụ ihe - mepere emepe{1}}mgbanaka mgbanaka ewepụghị nke ahịhịa na ihe mgbanaka nwere ike ịrụ ọrụ nke ọma na 800-1200 RPM, mana otu ihe ahụ etinyere n'ụlọ IP65 nwere akara elastomeric (ọ na-abụkarị nitrile roba maka-40 degrees maka ọrụ kemịkalụ ma ọ bụ fluoro) 30{11}}Mbelata 40% n'ikike ọsọ kacha. Okpomọkụ na-eme na brush{18}}mgbanaka interface - nchikota nke I²R kpo oku na-eguzogide na nrụrịta ụka, ihe dị ka 0.8-1.2 watts kwa ampere kwa ahịhịa na akara ugbu a - ga-eduzi site na ụlọ agbachiri kama ịgbasa ozugbo na ikuku ikuku. Mgbanaka mbanye 10-circuit na-ebu 5 amperes kwa sekit na 400 RPM na-ebute mkpokọta 40-60 watts. Enweghị ikpo ọkụ zuru oke site na flange na-arị elu ma ọ bụ nku dị jụụ nke dị n'èzí, okpomọkụ nkwụsị na ebe kọntaktị ahịhịa nwere ike iru ogo 90-120, nke na-eme ka carbon brush oxidation dịkwuo elu ma na-akpata glazing nke kọntaktị elu.
Ahụla m nkeji ejiri akara maka 500 RPM nke na-enweghị ike ịkwado 300 RPM n'ihi na ihe nrụpụta ọkụ bụ obere - onye nrụpụta na-eji ụlọ aluminom dị mkpa na-enweghị ntù jụrụ oyi iji chekwaa ibu, na mgbakọ ahụ niile ga-adị ọkụ na-emetụ aka mgbe nkeji iri abụọ gachara. Onye ahịa gara n'ihu na-akpọ maka mgbanaka mgbanaka "adịghị mma" ruo mgbe anyị mechara tụọ okpomọkụ ụlọ wee hụ na ọ na-akụ 75 ambient gburugburu ebe akara. Ka a sịkwa ihe mere akara ahụ dara mgbe ọnwa isii gachara.
Ndụ ọrụ ahịhịa
Carbon{0} graphite brushes na-eyi ihe dịka 0.5-1.5 millimeters kwa awa 1000 nke ọrụ dabere na njupụta ugbu a; ahịhịa na-amalite n'ogologo 8mm na-erute ebe ndochi ya (nke a na-eyi ya ruo 3{8}}4mm fọdụrụ ogologo iji nọgide na-enwe nrụgide mmiri zuru oke) mgbe awa 2500- 4000 gachara na mgbakọ ahaziri nke ọma. Brosh metal-graphite nwere 40-60% ọla kọpa ma ọ bụ ntụ ntụ ọlaọcha agwakọta ya na ihe nrụnye graphite na-egosipụta nguzogide kọntaktị dị ala (0.005-0.015 ohms kwa ahịhịa na 0.020-0.040 ohms maka carbon-graphite dị ọcha) ma nwee ike iburu njupụta dị ugbu a dị elu (ihe ruru 50 A / cm² karịa ọkwa carbon 25²), mana ọ na-abawanye ogo 25². 50-80% n'ihi akụkụ ahụ siri ike nke ọla na-emebi ma ahịhịa na elu mgbanaka kọntaktị, na-ebute ndụ ọrụ nke 1500-3000 awa tupu ndochi adị mkpa.
Ọ dị mma ịmara na "awa ọrụ" pụtara oge ntụgharị n'ezie, ọ bụghị ike - n'oge. Hụrụ ọtụtụ ndekọ ndekọ ebe ndị mmadụ na-enyocha ọnwa kalenda kama awa tachometer, nke butere ma ọ bụ ngbanwe oge akaghi aka (ịla n'iyi na brushes nke nwere 40% ndụ fọdụrụ) ma ọ bụ ọdịda a na-atụghị anya ya (brushes na-eyi n'ihi na igwe na-agba ọsọ ugboro abụọ kama otu).
Ihe mgbanaka kọntaktị na mmebi
Ogologo oge mgbanaka kọntaktị gafere ndụ ahịhịa nke ukwuu n'ọtụtụ nrụnye, nwere ọla edo{0}}aloy plated mgbanaka (nke 1-3 microns nke ọla edo siri ike n'elu efere nickel mgbochi na mkpụrụ ọla kọpa) na-adịru 10,000{9}}20,000 awa tupu oyi akwa ọla edo erute ruo na nickel dị n'okpuru, na-abawanye nkwụsi ike nke nickel. ụfọdụ ndị nrụpụta na-akọwapụta "flash gold" nke naanị 0.3-0.5 micron iji belata ọnụ ahịa, mana mgbanaka ndị a na-egosi site na{16}}yiri n'ime awa 3000-5000 n'okpuru ibu dị ugbu a na-agafeghị oke. Mgbanaka ọla ọcha ma ọ bụ ọlaọcha-graphite, mgbe ụfọdụ a na-eji ngwa dị elu ugbu a (50-100 amperes kwa sekit), na-egosipụta nguzogide kọntaktị dị ala karịa ọla edo (0.001-0.003 ohms kwa sekit na 0.003-0.006 ohms maka ọla edo) mana na-ata ahụhụ site na tarnishing na gburugburu ebe nwere ogige sọlfọ ma ọ bụ oke iru mmiri, nke nwere ike ịbawanye oge na-akpata nsogbu na 3% site na 0. oyi akwa tarnish na-arụkwa ọrụ dị ka abrasive, na-abawanye nha nha nha. Mgbanaka ọla kọpa ma ọ bụ ọla ọla, nke a na-ahụ naanị na nkeji dị ọnụ ala ma ọ bụ ebe ihe achọrọ ugbu a karịrị 100 amperes kwa sekit, na-eyi ngwa ngwa (5000-8000 awa kacha) wee oxidize na-aga n'ihu.
Enwere ngwa ahịrị nkwakọ ngwaahịa azụ na 2017 - ndị ahịa siri ọnwụ na mgbanaka ọla kọpa kama edobere ọla edo{1} makana ha na-ebugharị 80 amps kwa sekit ma ha achọghị ịkwụ ụgwọ maka itinye ọla edo dị arọ. Ọ rụrụ ọrụ nke ọma ihe dị ka awa 4000, mgbe ahụ na mberede, ha malitere ịpụ n'oge na-adịghị anya n'oge oke ọkụ dị ugbu a-. A tụgharịrị na nrụpụta ọla kọpa oxide na-emepụta oyi akwa semiconducting nke ga-akụda n'okpuru ibu, arc, mepụta oxide ọzọ, kwugharịa. Akwụsịla na-eri ha ọnụ karịa n'oge ezumike karịa ọla edo{8}teara mgbanaka ga-eri na mbụ. Mana ị maara ka ngalaba ịzụrụ ihe si arụ ọrụ - ha na-ahụ ọnụọgụ dị ala na nkwuputa ahụ na nke ahụ bụ ihe dị mkpa.
Mechie mbibi - ọnọdụ ọdịda ezoro ezo
Ihe owuwu a mechiri emechi achọrọ maka ọkwa IP65 na-ewebata nsogbu adịghị n'ụdị oghe -frame. Elastomeric akàrà n'etiti na-atụgharị na ngalaba ụlọ na-eguzosi ike ịnọgide na-enwe mkpakọ mgbe na-nabata thermal mgbasawanye nke iche ihe (aluminom ụlọ na ígwè shaft, ma ọ bụ plastic insulators na metal mgbanaka), na ndị a akara na-eweda n'elu oge site thermal ịgba ígwè, ozone ikpughe (karịsịa na eletriki eletrik dị nso nso na-amụba ozone si n'ike flexing arcing). Nitrile rubber seals na-amalite ịla nhịahụ mgbe awa 15,000-20,000 nke ọrụ ma ọ bụ 3-5 afọ nke kalenda (nke ọ bụla na-abịa na mbụ) n'ihi crosslinking nke polymer chains, mgbe fluoroelastomer akara (Viton ma ọ bụ ihe kwekọrọ) na-ejigide ihe onwunwe ogologo ma na-eri 3-4 ugboro ọzọ.
Mgbe akàrà dara, ọkwa IP65 na-eweda nwayọọ nwayọọ kama ikuku mmiri na-ebu ụzọ abanye - (na-ebuli iru mmiri dị n'ime yana oxidation brush), na-esote mmiri mmiri ma ọ bụ uzuzu n'ikpeazụ na-ebute mmebi arụmọrụ ngwa ngwa.
DC na AC arụ ọrụ
DC nke ugbu a site na mgbanaka mgbanaka na-eme ka ike dị ukwuu karịa AC ugbu a na amperage nhata n'ihi njem elektrọnik na brush -mgbanaka mgbanaka - n'ezie bụ usoro corrosion galvanic dị nwayọ ebe ihe na-ebufe site na anode gaa na cathode ihe karịrị puku awa ọrụ, na-emepụta pitting n'otu elu ma wulite n'akụkụ nke ọzọ. Mmetụta a na-ebelata ndụ ahịhịa site na 40-60% ma e jiri ya tụnyere ọrụ AC, yana ụfọdụ ndị na-emepụta ihe na-akwado ngbanwe ahịhịa na awa 1200{10}2000 maka sekit DC na awa 3000-4000 maka AC. Mbelata voltaji gafere ụzọ kọntaktị mgbanaka ahịhịa na-atụkarị 0.2-0.5 volts na ọkwa ugbu a mgbe ọ dị ọhụrụ, na-abawanye ruo 0.8-1.2 volts ka brush na-eyi na mpaghara kọntaktị na-ebelata; Mbelata voltaji a na-anọchi anya mgbasa ike (I × V watts kwa kọntaktị) nke na-enye aka na kpo oku ma bụrụ nke a ga-etinye ya na mgbako ọkụ, ọkachasị na ngwa dị elu ugbu a ebe sekit 10-ampere nwere 0.5V dobe na-agbasa 5 watts kwa ahịhịa.
N'uche, ụfọdụ akwụkwọ ochie na-ekwu na ọrụ DC na-ebelata ndụ naanị site na 20-30%, mana a na-eme ọmụmụ ihe ndị ahụ na njupụta dị ugbu a dị ntakịrị nke 1970s na 1980s instrumentation slip ring. Ngalaba ụlọ ọrụ ọgbara ọhụrụ na-ebugharị 10-20 amps site na ahịhịa ọ bụla na-ahụ mbibi DC akpọpụtara karịa.
Ihe gbasara gburugburu ebe obibi ọ nweghị onye na-ekwu maka ya
Na-arụ ọrụ na 50 degrees ambient kama n'ọnụ ọnụ 25 ogo okpomọkụ ntụaka okpomọkụ na-ebelata ahịhịa ndụ ihe dị ka 25{6}}35% n'ihi accelerated oxidation na thermal softening nke ahịhịa ihe eji eke ihe, na n'out oge na-ebelata kacha allowable RPM site 15-20% n'ihi na okpomọkụ oke na thermal ọdịda na-ebelata nhata. Mpaghara iru mmiri dị elu (karịa 70% iru iru mmiri) na-eme ka brushes carbon-graphite na-amịkọrọ mmiri, na-abawanye nguzogide kọntaktị site na 15-25% ma na-agbanwe ọnụọgụ nke esemokwu na interface slide; mmetụta a na-agbanwe mgbe iru mmiri na-ada, mana ịgba ígwè n'etiti ọnọdụ mmiri na akọrọ na-eme ka ike na-eyi ngwa ngwa.
Vibration bụ ihe ọzọ na-egbu egbu nke na-adịghị enweta nlebara anya zuru oke. bounce bounce (nkwụsị kọntaktị nwa oge) na-eme mgbe osooso gafere ihe dịka 3-5G n'ogo nke 50-200 Hz; mmemme bounce ọ bụla na-emepụta micro{6} arc nke na-emebi ihe site na brush na elu mgbanaka, na-ebelata ndụ site na 20-40% na ngwa ịma jijiji dị elu ma e jiri ya tụnyere nrụnye na-agba ọsọ na ntọala siri ike.
Nwere onye ahịa na-ebugo mgbanaka slipi IP65 na igwe nkwakọ ngwaahịa na-emegharị emegharị - ọtụtụ mmalite{2}}kwụsị okirikiri nwere ọnụma dị elu. Ndụ ahịhịa akwadoro bụ awa 3000 mana ha na-ahụ ọdịda na awa 800-1000 mgbe niile. Accelerometers gosipụtara elu 8-10G na 120 Hz, gafere ihe brushes nwere ike ijikwa na-enweghị mgbawa. Ngwọta gụnyere ịgbakwụnye ugwu kewapụrụ iche, bụ nke webatara nsogbu nke ya na ndozi osisi, mana opekata mpe, brushes malitere ịdịru awa 2200-2500.
Ndozi eziokwu na nkọwapụta akwụkwọ data
Nyocha oge niile kwa 1500{4}2000 awa ọrụ na-enye ohere ịchọpụta ụdị ejiji na-adịghị mma, mmetọ, ma ọ bụ nwee nsogbu eletrik tupu ha ebute ọdịda zuru oke, ebe ndị na-arụ ọrụ iji mechaa ọdịda ahịhịa na-ebutekarị mmebi na mgbanaka kọntaktị site na arcing ma ọ bụ site na ngwongwo ígwè wụsara site na brushes eyi na-etinye n'elu mgbanaka. Ụfọdụ ndị na-ahụ maka ọrụ na-enyocha nguzogide sekit na-aga n'ihu na-eji sekit mgbanaka slipper raara onwe ya nye maka ebumnuche a, na-enwekwa oke oti mkpu na 50-100% na-abawanye karịa ụkpụrụ ntọala iji kpalite mmezi. The Parker{10}Hannifin technical bulletin TB-1147 (revised 2018) na-atụ aro ule eletriki gụnyere nguzogide mkpuchi n'etiti sekit na ala (kwesịrị gafere 100 megohms na 500VDC), nguzogide sekit na okirikiri (kwesịrị dakọtara n'akụkụ sekit n'akụkụ n'ime 20%), na kọntaktị voltaji ga-anọgide n'okpuru ibu (1).
Lee, nsogbu bụ ọtụtụ ụlọ ọrụ enweghị onye a zụrụ azụ ime ule ndị a nke ọma. Ha nwere ike lelee nguzogide mkpuchi n'ihi na ọ dị mfe - clip na megger, pịa bọtịnụ, nweta nọmba. Mana ọ̀tụ̀tụ̀ kọntaktị na-ada n'okpuru ibu n'ezie? Nke ahụ na-achọ ịtinye wires nke ugbu a na voltaji n'ime sekit mgbanaka slips ka ọ na-agba ọsọ, nke pụtara ihe nleba anya nlebara anya yana onye ghọtara nha nguzogide waya anọ-. Ya mere, ihe na-eme n'ezie bụ na ha na-agba ọsọ mgbanaka ahụ ruo mgbe ihe kwụsịrị ịrụ ọrụ, wee kpọọ maka ọrụ mberede, chọpụta ihe mgbanaka kọntaktị mebiri site na nsị ahịhịa, ma mechie mgbakọ ahụ dum maka $ 8000 kama dochie brushes maka $ 300.
Ngwa na-achọ ọrụ na-adịgide adịgide karịa 500 RPM ma ọ bụ ndụ ọrụ karịrị awa 15,000 na-enweghị ndochi ahịhịa kwesịrị ịtụle ihe ndị ọzọ maka mgbanaka carbon nkịtị - brush slip ring - rotary transformers na-enweghị kọntaktị ma ọ bụ nkwonkwo anya rotary na-ewepụ usoro iyi uwe kpamkpam mana na-etinye oke na bandwidth mgbaàmà ma ọ bụ ikike ike, ebe mercury{5}m nyere ikike iji mgbanaka na-adịghị mkpa. ndụ ntụgharị mana webata nchegbu nsi ma na-erikarị 5-10x karịa ihe eji eme ya.