Unosarudza sei yakakwira torque brushless motor?

Kunzwisisa yakakwira-torque brushless DC mota yekubhapanza

Core mashandiro ekushandisa eBLDC Motors

Brushless DC (bldc) motors inogadzira torque ichishandisa torque ichishandisa magineti asingagumi rotor uye akasangana nemagetsi zvekushanduka kwemhepo. Panzvimbo yemabhurashi uye yemuchina wekutengesa, zvazvino zvinokwenenzverwa neanotonga zvichibva pane rotor chinzvimbo kubva kune horo sensors kana encoder. Izvi zvinoderedza michina yekupfeka, inokonzeresa kushanda (kazhinji 85-95%), uye inobvumira kumhanya kwakanyanya uye torque density zvichienzaniswa neakasvibiswa motors yakaenzana. Kune yakakwirira-torque zvikumbiro, bldc motors inofarirwa nekuti ivo vanogona kuendesa yakakwira torque nekudzikama kwekugadziriswa, kuita kwakagadzikana kweTorque uye kumhanya.

Ndeipi "torque yakakwirira" zvinoreva mumashoko anoshanda

Muchiinjiniya maitiro, "torque yakakwira" inofanira kutsanangurwa nhamba. For small frame sizes (e.g., 42–60 mm outer diameter), high torque might mean 0.5–5 N·m. Yemafiramu epakati (80-130 mm), inogona kunge iri 10-50 N ·. Kune maindasitiri makuru maindasitiri (160-280 mm), yakakwirira-torque inoratidzwa kubva ku50 maN m m m m m m m m m m m m m m m m m m m m m m mem. Kugona kweTorque Torque kunotsanangurwa na:

• Rated (kuenderera mberi) torque: Torque iyo mota inogona kuendesa zvachose pakurwisirwa ambient tembiricha (kazhinji 25-40 ° C) pasina inodarika miganhu yekuuraya.
• Peak torque: Pfupi-tert torque mota inogona kuburitsa kwemasekondi kune makumi emasekondi usati wanyanyisa.
• Torque anogara (kt): N m u Ampere, achiratidza kuti torque yakakura sei inogadzirwa pane yazvino.

Paunenge uchisarudza mota, iwe unofanirwa kufananidza idzi tsika nemamiriro ekunze ekutakura, kwete chete catalog "yakanyanya" nhamba.

Kujekesa mitoro inodikanwa uye syd cycle

Inoratidza iyo mechanical mutoro chimiro

Iyo yekutanga pfungwa ndeyekutanga kutsanangurwa kweiyo mechanical mutoro. Mugadziri wehunyanzvi kana fekitori yekugadzira timu inowanzo kuvaka torque-nguva uye kumhanya-nguva mbiri kune yakazara yekushandisa kutenderera. Kiyi data inosanganisira:

• Static mutoro weTorque: Torque inodiwa kubata mutoro unomira pamusoro pekusuruvara, kupokana, kana matanho ekugadzira.
• Dynamic Inotakura Torque: Yakawedzera torque inodikanwa yekuwedzera uye kusagadzikana.
• Inertia: Yakabatanidzwa inertia yemotokari, gearbox, uye mutoro (kg · m²).
• Inodiwa Speed ​​Speed: Chaizvoizvo inoshanda kumhanya, shoma uye yakakwirira (rpm).

Semuenzaniso, funga nezve mutoro unoda 15 N · m at 300 rpm yekunyoreswa kushanda, kuwedzera kusvika pamakumi maviri nemashanu N · m m m m m m m m m m m m m m m m m m Iyi profiles inova iyo yakakosha yekuisa mota sizy.

Duty kutenderera uye zvarinoreva zvarinoreva

Kutenderera kwebasa kunotsanangura chikamu chenguva iyo mota inoshanda kune akasiyana torque materu mukati mekutenderera. Iso basa makirasi akadai seS1 (kuenderera), S2 (pfupi-nguva), uye s3 (inopinda) inoshandiswa kutsanangura maitiro ekushanda. Zvekuenderera mberi pabasa (s1), iyo mota yemota inofanirwa kupfuura iyo yepamusoro inoenderera torque inoda neicho chengetedzo. Zvekuita cyclical basa (s3), uko torque yakakwira inongoonekwa muchidimbu, unogona kusarudza mota padhuze nemiganhu yayo yekunyora kana avhareji torque pamusoro pekutenderera ichiramba yakadzika.

Muenzaniso weindasitiri wokutanga: mota inoburitsa 20 N m u kwemasekondi gumi, ipapo 5 N m us 550 masekondi, kudzokorora. Avhareji torque ndeye:

Tavg = (20 N m u 10 s + 5 N m u 50 s) / 60 s = (200 + 250) / 60 ≈ 7.5 NB

Uyu avhareji inokonzeresa basa rekupokana, nepo peak 20 N · m inofanira kuwira mukati memotokari-pfupi-nguva kugona kwakapihwa nemutengesi.

Peak torque zvinodiwa uye kuchengetedza margins

Kuverenga kunodiwa peak torque

Peak torque inotemerwa neese mutakura torque uye acceleration torque. Torque yekuwedzera inogona kufungidzirwa kubva:

Tacc = J × (δω / δt)

kupiJndiyo yakazara inertia, δω ndiyo shanduko yekukurumidza kumhanya, uye δt ndiyo nguva yekuwedzera. Ngatitii iyo Intertia yakasanganiswa ndeye 0.02 Kg · m², uye iwe unofanirwa kukurumidza kubva ku0 kusvika ku300 rpm (≈31.4 Rad / s:

Tacc = 0.02 × (31.4 / 0.5) ≈ 1.26 N m u

Kana iyo yakatsiga-nyika torque at 300 rpm ndeye 15 N m m m m m m m m m m m m m

Tpeak, Req ≈ 15 + 16 ≈ 16.3 N M

Kushandisa zvinhu zvekuchengetedza torque zvekuchengetedza

Mainjiniya anowanzo shandisa chinhu chengetedzo ye1.2-1.5 pane kuenderera torque uye 1.1-1.3 pane peak torque yeBLD sarudzo. Uchishandisa muenzaniso uri pamusoro:

• Inodikanwa kuenderera Torque ine Margin: 15 N · × 1.25 ≈ 18.8 N m m m m m m m m m m m m m m m m m m m m m m m m
• Inodiwa Peak Torque ine Margin: 16.3 N m u 1.2 ·. 19.6

In this case, a reasonable target would be a motor rated around 20 N·m continuous with at least 22–25 N·m peak. Chikwangwani chinokwanisa kana cheinjiniya timu paMugadziri chinoshandisa nhamba idzi kuti urudzire saizi yakakodzera saizi, mhepo, uye nzira inotonhorera.

Zvine chekuita neTorque, kumhanya, uye Simba Rondedzero

Mechanical Simba Kuverenga

Kusarudzwa kwetorque hakugone kupatsanurwa kubva kumhanya uye simba. Simba rekubuditsika rekubuda nderekuti:

P = t × ω

kupiPisimba mu watts,TiTorque muNarco, uyeωIs Angar Speed ​​in rad / s. Sezvo ω = 2nn / 60 (n mu rpm), iyo formula yaiwanzo shandiswa ndeye:

P (w) ≈ 0.1047 × t (N · · n (rpm)

Yeiyo 20 N morque pa 300 rpm muenzaniso:

P ≈ 0.1047 × 20 × 300 × 628 w

Kubvumidza mota uye kutyaira kurasikirwa, iyo yemagetsi yekuisa inogona kuve 700-800 W ye80-90% inoshanda BLDC system.

Torque-Speed ​​Curves uye System Contrapints

BLDC Motors ine hunhu torque-mhanya curve: Torque inogara ichingogara ichimhanya kumhanyisa, inobva yadonhedza sekumhanya kunowedzera kune isina-mutakuri kumhanya. Paiyo yakapihwa voltage:

• Kuwedzera kumhanya kunomutsa kumashure-EMF, kudzikisira kuwanikwa kwazvino uye nekudaro torque.
• Kushanda nekukurumidza zvakanyanya kumhanya neTorque yakakwira inowedzera kurasikirwa kwemhangura uye kupisa.

Kuti uve nechokwadi chekuti iyo yakasarudzwa-torque mota inoita nemazvo, kuronga mapoinzi ako ekushandisa pane iyo gadzira torque-speed curve:

• Zvese zvinoenderera-zvebasa mapoinzi anofanirwa kurara pasi pazasi pekuenderera mberi.
• ZVESE ZVESE ZVESE-ZVIMWE-ZVIMWE-ZVIMWE ZVIMWE ZVINOGONESA ZVINOGONESA PAKUTI PEAK CUVE uye mukati meibvumidzwa nguva.

Kana yako inodiwa torque-mhanya-speed point inowira kunze kwenzvimbo inochengetera, iwe ungangoda mhepo yakasiyana, yakakwira bhazi voltage, iyo gearbox, kana yakakura shuwa kubva mufekitori.

Voltage, zvazvino, uye mutyairi anoenderana nekusarudzwa

Kufananidza mota voltage uye drive bhazi

Kusarudza iyo yakakwira-torque bldc mota inosanganisira kufananidza kwayo base voltage uye maitiro emagetsi kune iyo drive yemagetsi. Zvakajairika DC Bus voltages ndeye 24 v, 48 V, 72 v, uye 310-325 v, uye 310-325 v, Key Parameter:

• Back-EMF kugara (ke): v / krpm, zvichiratidza kuti voltage vhoti yakagadzirwa neyuniti yekumhanya.
• Torque nguva dzose (KT): NB / A, zvine hukama nekamuri yemotokari.

Kune vhoriyamu yakapihwa, yakaderera ke mhepo inosvika kumusoro kumhanya asi inoda yakawanda iripo yetorque yakapihwa. Yakakwira ke mhepo inopa yakakwira torque pa ampere pakadzika kumhanya. Iye mutengesi anofanira kudoma akati wandei mhepo yekudzidzira nzira; Sarudza iyo iyo inobvumira yako Peak yazvino mukati meiyo Controller's Rating uye yako yaunoda yakanyanya kumhanya.

Ratidziro dzazvino uye maratidziro ekudzivirira

Iyo drive inofanira kubata zvishoma:

• Rated chikamu chazvino kuitira kuenderera mberi nebasa.
• Peak chikamu chazvino chekusimudzira uye kuyambuka, kazhinji ka3-3 ka3 kairi zvazvino kwemasekondi akati wandei.

Semuenzaniso, kana iyo application ichida gumi erms inoenderera ne20 ceak yemasekondi mashanu, iwe unofanirwa kusarudza dhiraivha yakagadzirirwa ku ≥12-15 inoenderera uye ≥30 penak yekupa marita. Zvikasadaro, kudzikisira kwazvino mudhirowa kuchadzivirira mota kuti isasvikane neTorque yakakwira. Kuvhara Technical kutaurirana pakati peiyo mota mugadziri uye mutengesi anotengesa akakosha kune chaiyo pairing.

Kubata Motor neTorque Margin uye Kuchengetedza Zvinhu

Kuyera kuenderera mberi torque uye saizi saizi

Kubata mota yakakwirira-torque bldc inoda kuyera mashini kuita nehukuru, uremu, uye mutengo. Kusimbisa mota kunomirira kuti inomhanya pedyo kana pamusoro yakatemwa zvazvino nguva dzose, kusimudza tembiricha uye kupfupisa hupenyu. Kuwedzeredza kunowedzera mutengo uye inertia. Maitiro Anoshanda:

• Sarudza iyo inodikanwa kuenderera torque ine chengetedzo chinhu (i.e., 1.2-1.5).
• Sarudza madiki madiki madiki ane yakarongedzwa torque inodarika izvo zvinodiwa.
• Simbisa kuti Peak Torque zvinodiwa zviri pazasi pemotokari yakataurwa pfupi-pfupi.

Semuenzaniso, kana chako chinodikanwa iine 18 N m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m im,

Kuongorora iyo inopisa musoro uye ambient mamiriro

Kugona kweTorque Kugona kwakakura kwakabatanidzwa kune kugona kwemotokari kusunungura kupisa. Yakakura ambient tembiricha, mhepo isina kunaka, kana dzimba dzakavharirwa dzinodzora torque. Mazhinji mashiti e data anofunga 40 ° C arebient uye mahara convection; Kana yako application ichimhanya pa 55 ° c mukati mekamuri yekudzora, kurongedza kunogona kunge kuri 10-20%. Kana uchisarudza mota:

• Bvunza mutengesi wekutengesa curves vs. ambient tembiricha.
• Funga kuwedzera kumanikidzwa-mhepo fan kana kupisa sink kana iyo thermal margin yakaderera.
• Ita shuwa kupisa kwemhepo kunogara pasi pekirasi yayo yekunzwa (i.e., 130-155 ° C yekirasi f kana h).

Kukurukurirana kwakakodzera kwekutarisa kunoita kuti ushandise huwandu hwemotokari huru torque usinga zvibayire kuvimbika.

Kuongorora rotor dhizaini, matanda, uye inokwereta yekukwira

Kubata kwePole Count uye rotor chimiro

Yakakwira-torque BLDC motors inowanzovimba neyekuona rotor magadzirirwo. Kufungisisa kwakakodzera kunosanganisira:

• Pole Kuverenga: Yakakwirira Pole Colo Count (i.e., 8-16 matanda panzvimbo pe4) anovandudza torque dens
• Magnet zvinhu: Yakakwirira-giredhi zvisingawanzo-pasi magneti anowedzera torque gersity uye dzivisa demognization pakupisa kwakanyanya.
• Rotor Inerthia: Romanier Rotors inopa yakasarudzika torque asi kuderedza mhinduro yesimba.

Kuti uwane kuderera-kumhanya, yakakwira-torque zvikumbiro senge zvakananga-kutyaira masisitimu, yakakwira pole kuverenga neakakura dhidha Rotor inofarira. Kune yakakwirira-yekumhanyisa mashandisirwo eGear kuderedzwa, iyo yakaderera pole kuverenga inogona kusarudzwa kudzora kurasikirwa kwerudzi.

Mhepo topology uye torque ripple

Stator Winding Kugadziriswa Kunobata Torque, Kurasikirwa, uye Kuchena. Vatengesi veIndifiri vanowanzopa:

• Kugovera mhepo
• Yakasarudzika Mhepo: Yakakwirira Torque Density uye kupfupika magumo anotendeuka, paine zvinogoneka kuwedzera torque.
• Nyeredzi (y) vs delta: Star yekubatanidza inopa yakakwira voltage, yakaderera ikozvino; Delta inopa yakakwira ikozvino, yakaderera voltage pese pese simba.

Kana chikumbiro chako chichida diki torque ripple (semuenzaniso, mukunyora precision Zvekushandisa kunge mapombi kana mafani, zvishoma zvakakwira ripple inogona kugamuchirwa mukutsinhana kune zvimwe zvekumwe, marefu-torque magadzirirwo.

Kuongorora maitiro ekunyora uye kutonhora zvinodiwa

Kupisa masosi uye nzira yekuuraya

Mune imwe nzvimbo yeTorque BLDC, yekutanga kupisa masisitimu kurasikirwa (i²r), kurasikirwa kwerare, uye mupiro mudiki kubva pakurasikirwa kwemuchina. Iyo inobvumirwa yekudziya tembiricha inosimuka pamusoro ambient inosarudza kuenderera torque:

• Yakakwira iripo yetorque yakakwira inomutsa mhangura yekurasikirwa kwemhangura zvinoenderana neyakaenzana.
• Kumhanya pakakwirira kumhanya kunowedzera kurasikirwa kwerekurasikirwa kwerudzi mumutambi.

Nzwisisa kupesana kwemota kupesana kubva kumhepo kune ambient (° C / w). Semuenzaniso, kana kupokana kwekuramba kuri 1.5 ° C / W uye yako inobvumidzwa kupisa inosimuka ndeye 80 ° C, mota inogona kupaza yakaomarara 53 w yekuramba kurasikirwa. Kubva pane izvi, fekitori inogona kuverenga kuti yakawanda sei uye torque yaunokwanisa kushandisa zvakachengeteka kwenguva yakareba.

Kutonhorera nzira uye kuenderera mberi torque kuvandudza

Kuti uwedzere kuenderera mberi torque usingachinji kushanduka saizi, yakavandudzwa kutonhora inoshanda:

• Convert Conction: Baseline, kazhinji yakakwana kune mwero torque pazasi 1-2 kw.
• Kumanikidzwa
• Kutonhorera kwemvura: maJackets kana maJackets kana kaColorant Channels inobvumidza yakakwira kwazvo torque mukuenzanisa mavhoramu.

Kana chikumbiro chako chichida kuenderera mberi torque padhuze nepamhepo yemota, bvunza mutengesi wezvisarudzo zvinotonhora uye data rekutora. For instance, forced air may raise continuous torque from 20 N·m to 26 N·m at the same ambient temperature, while liquid cooling may raise it above 30 N·m.

Kufunga nezvekubatana kwekubatanidza uye kusimudzira matambudziko

Kukwira, shaft, uye kubereka kufunga

Mechancal Scriptration yakasimba kwazvo sarudzo yeiyo yakakwirira-torque bldc mota. Paramita kuti isimbise kusanganisira:

• Kukwirisa Standard: Flange Zvimiro, Bolt Circle, uye kureba kwakazara kunofanirwa kukodzera dhizaini yemuchina.
• Shaft Diameter uye Keying: Inofanirwa Kuendesa Peak Torque ine Chengetedzo Factor Asina Kubvumidzwa Shear Kushushikana.
• Radial uye axial mitoro: Kubereka sarudzo kunofanirwa kubata bhandi kusawirirana, mauto egiya, kana kutakura mitoro.

Semuenzaniso, kana mota yacho inofanira kumira zviuru zviviri nemutoro wechi 20 N · two torque uye 500 rpm, simbisa kuunganidza hupenyu (L10 hupenyu) kubva mufekitori. High-torque dhizaini inowanzoda fani yakakura kana inotsigirwa shafts kudzivirira kutadza kusati kwatadza.

MaGearboxes, Coupls, uye Direct Drive Sarudzo

Iko nzvimbo kana mhanya mhanya zviripo, iwe unogona kurara mota yeBLDC ine gearbox. Uchishandisa 5: 1 kuderedzwa, iwe unogona kuzadzisa 25 N m umukati mechiburiti kubva kune mota inopa 5 maN m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m mem Nekudaro, kurasikirwa kweGearbox (kazhinji 3-10%) uye backlash inofanira kutariswa.

Mune zvimwe zviitiko, driver-drive yakakwira-torque BLDC motors (yakakura-dhayimita, yakaderera-kumhanya) kubvisa mishonga yegehena, kuderedza kuoma uye kudzora kuoma uye kudzokorora. Kana uchibvunza mutengesi, taura:

• Inodiwa neTorque Torque uye Speed ​​Range.
• Inobvumidzwa backlash kana torsional kuomarara.
• Space envelope inopesana nemotokari uye inogoneka gearbox.

Izvi zvinobvumira mugadziri wekufunga nezve chero yakakwirira-torque drive-drive mota kana mota compact ine yakabatanidzwa gearbox.

Kuongorora kudzora maitiro, mhinduro, uye zvakanyatsoda

Maitiro ekutaurirana uye kudzora maitiro

Iyo drive zano pesvedzero inoshanda torque basa. Zviitiko Zvakanyanya Kudzora nzira:

• Trapezoidal Control (matanhatu-nhanho): yakapfava, inodhura-inobudirira, yakakodzera kune vazhinji-torque mafambiro anogamuchirwa neTorque ripple inogamuchirika.
• Kutonga-kweMunda-FOC): Inoshandisa vector Control kuti ipe yakasarudzika torque, kunyatsobudirira, uye zviri nani zvekumhanyisa-kumhanya maitiro.

Zvekushandisa zvinoda kudzora torque torque kudzora, sekushushikana kwekutonga kana robotic Ita shuwa mutyairi akasarudzwa anogona kugovera iyo inodiwa Peak yazvino uye inotsigira iyo yaunoda kudzora maitiro.

Mhinduro dzekupa uye chimiro chesimba

Motory-torque motors inogona kuda mhinduro chaiyo yekukoshesa uye kutonga:

• Horo sensors: 60 ° yemagetsi yekugadzirisa, yakakwana yekudzora kwekutanga kwekumhanya.
• Inowedzera Encders: Kubva ku1000 kusvika zviuru makumi maviri emadhora mapepa ekuchinja (PRPR) kana anopfuura, anoshandiswa pakumhanya nekukurumidza uye chinzvimbo chinzvimbo.
• Mhedziso YEMAHARA: Ipa akawanda-kutendeuka chinzvimbo chepamusoro, chinobatsira mukushandisa servo.

Kana zvichikonzera chokwadi che ± 0,1 Kurukura izvi zvinodiwa zvakajeka nefekitori kana mutengesi kuitira kuti mota, encoder, uye kutyaira inoenderana nehurongwa hwakakwana.

Kufananidza mutengo, kuvimbika, uye kutsigirwa nemutengesi

Kuongorora mutengo wakakwana werudzi

High-torque BLDC Motors inowanzo kuoma zvinhu mune zvigadzirwa zvekugadzira, saka mutengo wekutenga wekutenga hausi wenguva dzose sarudzo yakanyanya kunaka. Pane kudaro, ongorora:

• Kubudirira (kunokanganisa kushandiswa kwesimba kwezviuru zvemaawa).
• Inotarisirwa kutakura uye kusimbisa hupenyu pasi pebasa rako rekutenderera.
• Kuchengetedza nguva dzekugara uye mitengo yekugadzirisa.
• Kuwanikwa kwemashopu uye kutungamira nguva kubva kumugadziri.

Mota inodhura 10-20% asi inovandudza kushanda zvakanaka ne5% uye zvakapetwa basa hupenyu hunogona kuenderera mberi kwemaindasitiri ekushandisa.

Kukosha kweinjiniya rutsigiro uye kugadziriswa

Zvekudaidzira zvakakwirira-torque zvikumbiro, mhando yekukurukurirana kwehunyanzvi nemutengesi wako anosarudza. Tsigiro yakasimba yeinjiniya inosanganisira:

• Ongororo yekunyorera uye kuronga kuverenga kunoenderana neyako chaiyo mutoro data.
• Yakagadzirirwa mhepo, mafomu esati, anobatana, kana kukwira flangs pazvinenge zvichidikanwa.
• Thermal, kudedera, uye kurarama hupenyu hwekuyedza data pasi pemamiriro ezvinhu akafanana neyako kushandisa.

Factory inokwikwidza inogona kupa chete mabhokisi emabhokisi chete asiwo mhinduro dzakarongeka pazvakagadzirwa zvigadzirwa zvisingaonekwi torque, kumhanya, kana zvinodiwa zvakatipoteredza. Paunenge uchikwanisa mutengesi mutsva, bvunza nyaya yekuita, mainjiniya mishumo, uye sampula kuyedza usati waita vhoriyamu.

Maxtech anopa mhinduro

Maxtech anoitwa sehunyanzvi hwekukwirisa-torque BLDC mota gadzira uye system mutengesi, anotsigira vatengi kubva kune yekutanga kuongororwa kusvika pakupedzisira kusimbiswa kwekupedzisira. Zvichienderana neTorque yako, kumhanya, voltage, uye Duty-cycle data kuverenga inoda mari yekuchengetedza, fungai yakakodzera chimiro, uye kurudzira mhepo uye nzira dzekutonhora. Iyo fekitori inogona kubatanidza encoders, mabhureki, kana maGearboxes kuti aendese kugungano-kuisa musangano, uye kunogona kusimbisa maitiro neTorque-kumhanya uye kuongororwa kwekuwedzera. Kuburikidza neiyi nzira yakarongeka, Maxtech anobatsira kuve nechokwadi chekutangisa, anoshanda, uye akavimbika akakwira-torque motion akagadziriswa kune yega yega mashandiro emuchina uye magetsi matambudziko.