Ukukhetha imoto kunye ne-inertia

Ukukhetha uhlobo lweemoto kulula kakhulu, kodwa kuyinkimbinkimbi kakhulu. Le yingxaki ebandakanya ukulungelwa okuninzi. Ukuba ufuna ukukhetha ngokukhawuleza uhlobo kwaye ufumane isiphumo, amava ngawona akhawulezayo.

Kwishishini loyilo lomatshini wokuzenzela, ukukhethwa kweemoto yingxaki eqhelekileyo. Uninzi lwazo luneengxaki ekukhetheni, nokuba lukhulu kakhulu ukuba luchithe, okanye luncinci kakhulu ukuba luhambe. Kulungile ukukhetha enkulu, ubuncinci ingasetyenziswa kwaye umatshini unokuqhuba, kodwa kunzima kakhulu ukukhetha encinci. Ngamanye amaxesha, ukwenzela ukugcina indawo, umatshini ushiya indawo encinci yokufakela umatshini omncinci. Ekugqibeleni, kufunyenwe ukuba i-motor ikhethiwe ibe yincinci, kwaye uyilo lutshintshwa, kodwa ubungakanani abukwazi ukufakwa.

Kumzi mveliso womatshini wokuzenzela, kukho iintlobo ezintathu zeenjini ezisetyenziswa kakhulu: isigaba sesithathu se-asynchronous, stepper, kunye ne-servo. Iinjini ze-DC azikho kwindawo.

Umbane okwinqanaba lesithathu le-asynchronous, ukuchaneka okuphantsi, vula xa unikwe amandla.

Ukuba ufuna ukulawula isantya, kufuneka udibanise i-frequency converter, okanye unokongeza ibhokisi yokulawula isantya.

Ukuba ilawulwa yi-converter frequency, injini ekhethekileyo yokuguqula i-frequency iyafuneka. Nangona iinjini eziqhelekileyo zinokusetyenziswa ngokudityaniswa neziguquli rhoqo, ukuveliswa kobushushu kuyingxaki, kwaye ezinye iingxaki ziya kwenzeka. Ngeziphene ezithile, unokukhangela kwi-intanethi. Imoto yokulawula yebhokisi yerhuluneli iya kuphulukana namandla, ngakumbi xa ihlengahlengiswa kwisixhobo esincinci, kodwa i-frequency converter ayiyi.

Iimotor zeStepper ziinjini ezivulekileyo ezithe gqolo ukuchaneka okuphezulu, ngakumbi amanyathelo amanqanaba amahlanu. Bambalwa kakhulu basekhaya abanyathela kwisigaba sesihlanu, nto leyo engumda wobugcisa. Ngokubanzi, i-stepper ayixhotyiswanga nge-reducer kwaye isetyenziswe ngokuthe ngqo, oko kukuthi, i-shaft ephumayo ye-motor ixhunywe ngokuthe ngqo kumthwalo. Isantya sokusebenza se-stepper siphantsi ngokubanzi, kuphela malunga nama-300 revolutions, ngokuqinisekileyo, kukho iimeko ze-revolutions enye okanye amabini amawaka, kodwa kwakhona kunqunyelwe ukuba akukho mthwalo kwaye akukho xabiso elisebenzayo. Kungenxa yoko le nto kungabikho i-accelerator okanye i-decelerator ngokubanzi.

I-servo yinjini evaliweyo eneyona nto ichanekileyo. Zininzi ii-servos zasekhaya. Xa kuthelekiswa neempawu zangaphandle, kusekho umahluko omkhulu, ngakumbi umlinganiselo we-inertia. Ezi zisuka kumazwe angaphandle zinokufikelela ngaphezu kwe-30, kodwa ezasekhaya zinokufikelela kuphela malunga ne-10 okanye i-20.

Logama nje i-motor ine-inertia, abantu abaninzi bayayihoya le ngongoma xa bekhetha imodeli, kwaye oku kuhlala kungumgaqo ophambili wokufumanisa ukuba imotor ifanelekile na. Kwiimeko ezininzi, ukulungelelanisa i-servo kukulungelelanisa inertia. Ukuba ukhetho lomatshini alulungile, luya kwandisa i-motor. Debugging umthwalo.

Ii-servos zasekhaya zakuqala azizange zibe ne-inertia ephantsi, inertia ephakathi, kunye ne-inertia ephezulu. Ukuqala kwam ukudibana nale kota, andizange ndiqonde ukuba kutheni injini enamandla afanayo inokuba nemigangatho emithathu ye-inertia ephantsi, ephakathi, kunye nephezulu.

I-inertia ephantsi ithetha ukuba i-motor yenziwe yancinci kwaye inde, kwaye inertia ye-shaft engundoqo incinci. Xa i-motor yenza i-high-frequency repetitive motion, inertia incinci kwaye isizukulwana sobushushu sincinci. Ke ngoko, ii-motor ezine-inertia ephantsi zifanelekile kwintshukumo yokubuyisela i-high-frequency. Kodwa i-torque ngokubanzi incinci.

I-coil ye-servo motor ene-inertia ephezulu iyancipha, i-inertia ye-shaft engundoqo inkulu, kwaye i-torque inkulu. Ifanelekile kumaxesha anetorque ephezulu kodwa ayikhawulezi ukubuyiswa kwentshukumo. Ngenxa yesantya esiphezulu sokumisa, umqhubi kufuneka enze i-voltage enkulu ye-reverse drive ukumisa le inertia enkulu, kwaye ubushushu bukhulu kakhulu.

Ngokubanzi, i-motor ene-inertia encinci inokusebenza kakuhle kwe-braking, isiqalo esikhawulezayo, impendulo ekhawulezayo kwisantya kunye nokuyeka, ukubuyisela okuhle kwesantya esiphezulu, kwaye ilungele amaxesha athile ngomthwalo okhanyayo kunye nokumiswa kwesantya esiphezulu. Njengeendlela zokubeka ezikwisantya esiphezulu. Iimotor ezine-inertia ephakathi kunye nenkulu zifanelekile kwiziganeko ezinemithwalo emikhulu kunye neemfuno eziphezulu zokuzinza, ezifana namashishini athile omatshini aneendlela zokujikeleza ezijikelezayo.

Ukuba umthwalo umkhulu kakhulu okanye uphawu lokukhawulezisa lukhulu, kwaye i-inertia motor encinci ikhethiwe, i-shaft inokulimala kakhulu. Ukukhethwa kufuneka kusekelwe kwizinto ezifana nobukhulu bomthwalo, ubungakanani bokukhawuleza, njl.

I-Motor inertia nayo isalathisi esibalulekileyo se-servo motors. Ibhekisela kwi-inertia ye-servo motor ngokwayo, ebaluleke kakhulu ekukhawuleziseni kunye nokunciphisa i-motor. Ukuba inertia ayihambelani kakuhle, isenzo se-motor siya kungazinzi kakhulu.

Ngapha koko, kukho iinketho ze-inertia kwezinye iinjini, kodwa wonke umntu uye wenza buthathaka le ngongoma kuyilo, njengemigca yokuhambisa ibhanti eqhelekileyo. Xa i-motor ikhethiwe, ifunyenwe ukuba ayinakuqalwa, kodwa inokuhamba ngokutyhala ngesandla. Kule meko, ukuba unyusa umlinganiselo wokunciphisa okanye amandla, unokugijima ngokuqhelekileyo. Umgaqo osisiseko kukuba akukho inertia ehambelanayo ekukhethweni kwesigaba sokuqala.

Ukulawulwa kwempendulo yomqhubi we-servo motor kwi-servo motor, ixabiso elifanelekileyo kukuba umlinganiselo we-inertia yomthwalo kwi-motor rotor inertia enye, kwaye ubuninzi abukwazi ukudlula amaxesha amahlanu. Ngokuqulunqwa kwesixhobo sokuhambisa ngomatshini, umthwalo unokwenziwa.

Umlinganiselo we-inertia kwi-motor rotor inertia isondele kwenye okanye encinci. Xa inertia yomthwalo inkulu ngokwenene, kwaye uyilo lomatshini alukwazi ukwenza umlinganiselo we-inertia yomthwalo kwi-motor rotor inertia ngaphantsi kwezihlandlo ezihlanu, i-motor ene-motor rotor inertia ingasetyenziswa, oko kukuthi, ebizwa ngokuba yinkulu. injini ye-inertia. Ukufezekisa impendulo ethile xa usebenzisa i-motor ene-inertia enkulu, umthamo womqhubi kufuneka ube mkhulu.

Ngezantsi sichaza isenzeko kwinkqubo yokusetyenziswa kwemoto yethu.

I-motor iyangcangcazela xa iqala, okucacayo ukuba akwanelanga inertia.

Akukho ngxaki ifunyenweyo xa i-motor ibaleka ngesantya esiphantsi, kodwa xa isantya siphezulu, ibiya kutyibilika xa imile, kwaye i-output shaft ibijinga ngasekhohlo nasekunene. Oku kuthetha ukuba i-inertia ehambelanayo ikwindawo elinganiselweyo yemoto. Ngeli xesha, kwanele ukwandisa umlinganiselo wokunciphisa kancinci.

Injini ye-400W ilayisha amakhulu eekhilogram okanye iitoni enye okanye ezimbini. Oku ngokucacileyo kubalwa kuphela amandla, hayi torque. Nangona imoto ye-AGV isebenzisa i-400W ukutsala umthwalo wamakhulu amaninzi eekhilogram, isantya semoto ye-AGV sicotha kakhulu, okungaqhelekanga kwizicelo ezizenzekelayo.

I-servo motor ixhotyiswe ngemoto yegiya leentshulube. Ukuba kufuneka isetyenziswe ngolu hlobo, kufuneka kuqatshelwe ukuba isantya semoto akufanele sibe ngaphezu kwe-1500 rpm. Isizathu sesokuba kukho ukutyibilika kokutyibilika kwigiya yeentshulube, isantya siphezulu kakhulu, ubushushu bunzulu, ukunxiba kuyakhawuleza, kwaye ubomi benkonzo buyancipha. Ngeli xesha, abasebenzisi baya kukhalaza malunga nendlela inkunkuma enjalo. Iigiya zeentshulube ezivela kwamanye amazwe ziya kuba ngcono, kodwa azikwazi ukumelana nokutshatyalaliswa okunjalo. Inzuzo ye-servo enezixhobo zeentshulube kukuzitshixa, kodwa into engalunganga kukulahleka kokuchaneka.

Inertia = iradiyasi yokujikeleza x ubunzima

Ngethuba nje kukho ubunzima, ukukhawuleza kunye nokunciphisa, kukho inertia. Izinto ezijikelezayo kunye nezinto ezihambayo kwinguqulelo zine-inetia.

Xa kusetyenziswa iinjini eziqhelekileyo ze-AC asynchronous, akukho mfuneko yokubala inertia. Uphawu lweemoto ze-AC kukuba xa i-inertia yemveliso inganele, oko kukuthi, i-drive inzima kakhulu. Nangona i-torque ezinzileyo yanele, kodwa i-inertia edlulayo inkulu kakhulu, ngoko ke Xa i-motor ifikelela kwisantya esingalinganiyo ekuqaleni, i-motor iyancipha kwaye ikhawuleza, emva koko inyuse ngokukhawuleza isantya, kwaye ekugqibeleni ifikelele kwisantya esilinganiselweyo. , ngoko i-drive ayiyi kungcangcazela, enefuthe elincinci kulawulo. Kodwa xa ukhetha i-servo motor, ekubeni i-servo motor ixhomekeke kulawulo lwengxelo ye-encoder, ukuqaliswa kwayo kunzima kakhulu, kwaye isantya kunye nokujoliswe kuyo kufuneka kufezekiswe. Ngeli xesha, ukuba isixa se-inertia esinokumelana nemoto sigqithisiwe, i-motor iya kuthuthumela. Ngoko ke, xa ubala i-servo motor njengomthombo wamandla, i-inertia factor kufuneka iqwalaselwe ngokupheleleyo. Kuyimfuneko ukubala inertia yenxalenye ehambayo ekugqibeleni iguqulelwe kwi-motor shaft, kwaye usebenzise le inertia ukubala i-torque ngexesha lokuqalisa.