Active magnetic kabmob

Sawv daws yeej paub hais tias cov hlau nplaum yuav nyiam hlau. Tsis tas li ntawd ib tug magnet yuav nyiam lwm yam. Tab sis tus sis nruab nrab ntawm lawv yog tsis tsuas mus rau lub attraction, lawv muaj peev xwm ua rau txhua lwm yam. Tus taw tes nyob rau ncej ntawm ib tug magnet - opposite tug nyiam txhua lwm yam, ntawm tib lub npe - ib tug pib. Qhov no tej khoom vaj tse ntaub ntawv lub hauv paus ntawm tag nrho cov motors, thiab heev haib.

Tsis tas li ntawd, muaj yog xws li ib tug tshaj plaws li levitation los ntawm ib tug sib nqus teb, thaum muab tso rau lub magnet yam khoom (muaj ib tug zoo li tus ncej nrog nws) freezes nyob rau hauv qhov chaw. Cov nyhuv no tau thov nyob rau hauv kev xyaum nyob rau hauv lub thiaj li hu ua magnetic kabmob.

Yuav ua li cas yog ib tug sib nqus tau cov kabmob

electromagnetic hom apparatus nyob rau hauv uas ib tug rotating ncej (rotor) yog txaus siab rau qhov chaw feem (stator) ntawm lub magnetic flux rog, hu ua magnetic kabmob. Thaum lub mechanism yog nyob rau hauv lub lag luam, nws yog los ntawm lub cev rog uas nrhiav kev los hloov lub axis. Yuav kom kov yeej lawv, peb nruab nrog magnetic kabmob tswj system uas tsom kwm lub load thiab muab hwj chim tswj lub teeb liab magnetic flux. Magnets, nyob rau hauv lem, muaj zog los yog weaker ntxim rau cov rotor, kom nws nyob rau hauv qhov chaw hauj lwm.

Sib Nqus kabmob yog dav siv nyob rau hauv kev lag luam. Nws yeej yog ib tug haib turbine engine. Vim hauv lub qhaj ntawv ntawm kev sib txhuam thiab, thiaj li, tus yuav tsum tau siv lubricants, tshuab kev ntseeg yog nce ntau zaus lawm. suab tsis muaj coj rau lub Cheebtsam. Nws kuj pab txoj kev zoo ntawm kev ua thiab nce efficiency.

Active magnetic bearings

Sib Nqus tau cov kabmob, qhov twg tus quab yuam teb tsim los ntawm ib tug electromagnet, yog hu ua kom nquag plias. Electromagnets positional pov tseg nyob rau hauv cov kabmob stator, lub rotor muaj cov hlau ncej. Tag nrho system, uas muab tus ncej tuav nyob rau hauv lub chav tsev, hu ua lub active magnetic levitation (ila). Nws muaj ib tug complex qauv thiab muaj ob qhov chaw:

• Cov Kabmob tsev;
• lub hluav taws xob tswj system.

Basic ntsiab Ila

• Radial bearings. Tus ntaus ntawv, uas muaj nyob rau hauv lub stator electromagnets. Lawv tuav lub rotor. Nyob rau rotor muaj tshwj xeeb phaj ntawm ferromagnetic. Los ntawm suspending lub rotor yog tsis nyob rau hauv qhov nruab nrab ntawm nws cov kev sib cuag nrog lub stator. Inductive sensors saib xyuas lub slightest sib txawv nyob rau hauv txoj hauj lwm ntawm lub rotor ntawm lub nominal qhov chaw. Cov Pib ntsais koj teeb los ntawm lawv los tswj lub zog ntawm cov hlau nplaum nyob rau hauv ib tug muab point rau restore qhov nqi koj tshuav nyob rau hauv lub system. Radial clearance yog 0.50-1.00 hli, lub axial - 0.60-1.80 hli.

• Sib Nqus kabmob thrust ua hauj lwm nyob rau hauv tib txoj kev raws li cov groove. Lub rotor ncej yog ruaj thrust washer, rau ob tog ntawm uas cov txheej txheem ntawm cov hlau nplaum tsau mus rau lub stator.
• Bearings harnesses no yog tsim los tuav lub rotor thaum lub ntaus ntawv yog switched tawm los yog nyob rau hauv muaj xwm ceev. Nyob rau hauv lub lag luam, lub koom haum pab magnetic bearings yog tsis siv. Lub clearance ntawm lub rotor ncej thiab ob lub sij hawm tsawg tshaj li tus magnetic kabmob. Caij nplooj zeeg arrester ntsiab tau koom ua ke rau hauv lub hauv paus ballpoint pab kiag li lawm los yog zawv zawg bearings.
• Control electronics muaj xws li ib tug rotor ncej txoj hauj lwm sensors, converters thiab amplifiers. Tag nrho cov system ua hauj lwm nyob rau hauv lub hauv paus ntsiab lus ntawm kho cov magnetic flux nyob rau hauv txhua module ntawm lub electromagnet.

Passive magnetic kabmob hom

Sib Nqus bearings rau tas mus li hlau nplaum - yog systems tuav lub rotor ncej, uas yog tsis siv los ntawm cov tswj Circuit Court xws li lub tswv yim. Levitation yog nqa tawm tsuas yog nyob rau cov nuj nqis ntawm high-zog tas mus li hlau nplaum.

Ib tug disadvantage ntawm xws li ib tug khuam khawb ncaws yog qhov yuav tsum tau siv ib lub cov neeg kho tshuab nres, uas tau nyob rau hauv lub tsim ntawm tsis sib haum xeeb thiab kom txhob muaj system ntseeg. Sib Nqus kom pom tseeb nyob rau hauv cov kev txiav txim zoo tsis tau siv nyob rau hauv no cov tswvyim. Yog li ntawd, nyob rau hauv kev xyaum lub passive kabmob yog siv ncaw. Muaj yog ib tug patented qauv, xws li qhov kev ncua ntawm Nikolaev, uas tseem tsis tau rov qab.

Daim kab xev nyob rau hauv lub log kabmob

Lub sij hawm "magnetic log kabmob" yog hais txog mus rau lub ASB system uas yog dav siv nyob rau hauv niaj hnub tsheb. ASB bearings yus nyob rau hauv hais tias nws muaj ib tug ua nyob rau hauv lub log ceev sensor. Qhov no sensor yog ib tug active ntaus ntawv kos rau hauv cov kabmob hauv ob sab phlu. Nws yog raws li nyob rau hauv lub nqus nplhaib uas tug lwm lub caij, nyeem cov kev hloov ntawm magnetic flux.

Thaum tus kabmob rotates, muaj yog ib qhov kev hloov nyob rau hauv lub magnetic teb generated los ntawm cov magnetic nplhaib. Lub sensor nqa tawm npe ntawm qhov kev hloov, txoj kev ua lub teeb liab. Ces lub teeb liab nkag mus rau hauv microprocessor. Tsaug rau nws ua hauj lwm systems xws li ABS thiab ESP. Twb lawv muaj tseeb tsheb lag luam. ESP yog lub luag hauj lwm rau cov hluav taws xob stabilization, ABS ntawm lwm yam uas txoj kev sib hloov ntawm lub log, lub siab theem nyob rau hauv lub system - cov nres. Nws tsom kwm lub lag luam ntawm lub kauj system, lub acceleration nyob rau hauv lub sab, thiab kho cov lag luam los ntawm cov kis thiab lub engine.

Lub ntsiab kom zoo dua ntawm ASB kabmob yog muaj peev xwm tswj cov kev ceev ntawm kev sib hloov txawm nyob rau hauv heev tsawg revs. Nyob rau tib lub hnyav thiab loj tsis yog zoo tuaj hub, cov kabmob los ua ke yog yooj yim zog.

Yuav ua li cas yuav ua rau ib tug sib nqus tau cov kabmob

Qhov yooj yim magnetic kev coj tus kheej lawv tus kheej txhais tes mus ua ib tug snap. Nws twb tsis haum rau kev siv tswv yim, tab sis nws kom meej meej qhia tau hais tias tau ntawm lub magnetic quab yuam. Qhov no yuav tsum plaub neodymium magnet ntawm tib txoj kab uas hla, ob hlau nplaum me ntsis me me txoj kab uas hla ncej, rau Piv txwv li ib ya ntawm ib lub hnab yas lub raj, thiab cov abutment, rau Piv txwv li ib lub khob ib nrab-liter hub. me hlau nplaum nrog ib tug kub-yaj nplaum yog txuas mus rau lub xaus ntawm lub raj thiaj li mus nrhiav tau ib tug kauj li. Nyob rau hauv nruab nrab ntawm ib qho ntawm cov sib raug zoo cov hlau nplaum sab nraum yas pob. Cov tib tug yuav tsum saib outwards. Plaub magnet tug ntawm tib raug nteg nyob rau hauv officers nyob rau hauv lub cheeb tsam ntawm lub raj ya ntev. Lub rotor yog positioned saum toj no rau lwm magnet nyob rau sab qhov twg lub glued yas pob, propped li nws yas thawv. Ntawm no lub magnetic kabmob thiab yog npaj txhij.