Mokhoa oa ho Khetha Pakeng tsa Mefuta e Fapaneng ea Actuator

Li-actuator ke mesifa ea mochini o mong le o mong - li fetola matla hore e be motsamao o laoloang. Empa mofuta o mong le o mong oa actuator o kenya litlhoko tse fapaneng tsa motlakase potolohong e o tsamaisang. Tataiso ena e akaretsa mefuta eohle e meholo ea li-actuator ho tloha melao-motheong ea pele, mokhoa oa tsona oa khetho, le litlhoko tsa moralo oa PCB tseo e 'ngoe le e 'ngoe e li hlahisang.

Tafole ea likateng

1. Kamoo Li-Actuator li Aroloang Kateng: Mofuta oa Motsamao le Mohloli oa Matla
2. Mefuta ea Actuator ea Motlakase: Brushed DC, BLDC, Stepper, Servo, Linear le Piezoelectric
3. Li-Actuator tsa Hydraulic le Pneumatic: Matla, Lebelo le Taolo
4. Li-Actuator tse Ikhethang: Solenoid, SMA, Thermal le Soft
5. Mefuta ea Actuator ho Liroboto: Libetsa tsa Liindasteri, Li-Cobot, Liroboto tse Maoto le Li-Humanoids
6. Kamoo Mofuta oa Actuator o Tsamaisang Moralo oa PCB: Matla, Thermal le Tšireletso
7. Moralo oa Khetho ea Actuator le Tataiso ea Litšupiso tse Potlakileng

Highleap Electronics e hlahisa le ho kopanya li-PCB tse laolang li-actuator ho pholletsa le boiketsetso ba indasteri, liroboto, lisebelisoa tsa bongaka le lifofane. Tataiso ena e ngotsoe ho tsoa ntlheng eo e shebaneng le pono: eseng feela hore na mofuta o mong le o mong oa actuator ke eng, empa seo e se hlokang ho tsoa ho li-elektroniki tsa mokhanni oa eona - le hore na ke hobane'ng ha litlhoko tseo li bopa palo e 'ngoe le e 'ngoe ea lera, bophara ba mohlala, le qeto ea potoloho ea tšireletso eo re e etsang.

1. Kamoo Li-Actuator li Aroloang ka Teng: Mofuta oa Motsamao le Mohloli oa Matla

Sesebediswa sa ho kenya ke sesebediswa sefe kapa sefe se fetolang matla a kentsweng hore e be motsamao o laolwang wa mechini. Tlhophiso e tsamaya hodima di-axe tse pedi tse ikemetseng tseo ka bobedi di lokelang ho hlaloswa ho hlalosa sesebediswa sa ho kenya ka nepo.

Mofuta oa motsamao o hlalosa tlhahiso ea jeometri: li-actuator tse otlolohileng li hlahisa ho falla ha mola o otlolohileng (ho sutumelletsa/ho hula/ho phahamisa); li-actuator tse potolohang li hlahisa ho potoloha ha angular (torque ho potoloha axis); 'me li-actuator tse nang le li-axis tse ngata kapa tse kopaneng - joalo ka li-actuator tsa coil ea lentsoe le mekhahlelo ea sethala sa Stewart - li hlahisa motsamao ka litekanyo tse fetang e le 'ngoe tsa jeometri ka nako e le 'ngoe.

Mohloli oa eneji o khetholla bongata ba matla, taolo, litlhoko tsa meralo ea motheo, le mofuta oa sebopeho sa elektroniki.

Tsela eo mofuta oa motsamao le mohloli oa matla li kopanang ka eona li hlalosa actuator. Actuator ea hydraulic rotary le actuator ea motlakase e otlolohileng ke lisebelisoa tse fapaneng ka ho feletseng tse hlokang lisebelisoa tsa elektroniki tse fapaneng tsa taolo, tlhahlobo e fapaneng ea mokhoa oa ho hloleha, le meralo e fapaneng ea PCB - leha ho le joalo ka bobeli li oela tlas'a leibole e le 'ngoe ea "actuator." Likarolo tse ka tlase li hlalosa sehlopha ka seng ka botekgeniki.

2. Mefuta ea Actuator ea Motlakase: Brushed DC, BLDC, Stepper, Servo, Linear le Piezoelectric

Li-actuator tsa motlakase li laola boiketsetso ba sejoale-joale le liroboto hobane ha li hloke meralo ea motheo ea metsi le khokahano e tobileng le litsamaiso tsa taolo ea dijithale. Lihlopha tse nyane li fapana haholo ka meralo ea taolo, litlhoko tsa maikutlo, le seo li se hlokang ho PCB ea mokhanni.

Brushed DC Motors

Dimotara tsa DC tse brushed di fetola matla a motlakase ho potoloha ka borashe ba khabone bo kopanang le lesale la commutator le arohaneng, le fetolang tataiso ya hona jwale diwinding tsa rotor ho boloka torque e le nngwe. Torque e lekana le armature current (T = K _t × I _a ); lebelo le laolwa ke armature voltage minus back-EMF. Kamano ya lebelo le otlolohileng le torque e etsa hore potoloho ya mosebetsi wa PWM e be taelo ya lebelo le tobileng - e bonolo ka mechini le e otlolohileng ka elektroniki. Bokgoni bo sebetsa ka 70-85%; ho taboha ha borashe ho beha siling ya bophelo ba tshebeletso, hangata dihora tse 500-2,000 tshebetsong e tswelang pele.

Litlhoko tsa PCB tsa mokhanni: Topology ea H-bridge (L298N, DRV8833, kapa MOSFET H-bridge e arohaneng bakeng sa maqhubu a kaholimo ho 5 A), PWM ho tsoa ho microcontroller, ho utloa ha motlakase ka resistor ea shunt. Ho phatloha ha motlakase ho hlahisa EMI ea broadband - capacitor ea ceramic ea 100 nF setsing se seng le se seng sa enjene hammoho le ho koenya ha motlakase ka mokhoa o tloaelehileng ke phokotso e fokolang. Litšebeliso: lifensetere tsa motlakase, lisebelisoa tsa motlakase, li-drive tsa conveyor, lisebelisoa tsa bareki, othomathike ea indasteri e theko e tlase.

Brushless DC (BLDC) Motors

Dimota tsa BLDC di nkela phetoho ya mechine sebaka ka ho fetola ka elektroniki — rotor e na le makenete a sa feleng; mekhahlelo e meraro ya stator e matlafatswa ka tatellano ke PCB ya mokhanni ho latela boemo ba rotor ho tswa ho di-sensor tsa Hall kapa ho lemoha ha sensor back-EMF. Taolo e shebaneng le tshimo (FOC) e qhala stator current ho ba dikarolo tse hlahisang torque (I _q ) le tse hlahisang flux (I _d ), e leng se nolofalletsang tshebetso e boreleli ya lebelo le tlase le bokgoni bo boholo (85–95%). Dimota tsa BLDC di fana ka matla a mangata, bophelo bo bolelele ba tshebeletso, le lerata le tlase la acoustic ho feta di-equivalents tsa tsona tse borashe.

Litlhoko tsa PCB tsa mokhanni: Inverter ea mekhahlelo e meraro (li-MOSFET tse tšeletseng kapa li-IGBT), bakhanni ba heke ba nang le lipotoloho tsa bootstrap (mohlala, TI DRV835x, Infineon 6EDL), li-amplifier tsa kutlo tsa hona joale mohatong o mong le o mong, algorithm ea FOC e sebetsang ho DSP kapa microcontroller e nang le hardware e inehetseng ea PWM. Sebopeho sa PCB se tlameha ho fokotsa selika-likoe sa hona joale sa switching - li-trace tse khutšoane tsa heke, capacitor ea bootstrap e behiloeng ka har'a 5 mm ho tloha ho mokhanni oa heke, li-shunt tsa hona joale tsa mohato tseleng e tlase. Lisebelisoa: Li-motor tsa EV, li-drone, li-compressor tsa HVAC, li-drive tsa servo tsa indasteri, manonyeletso a roboto, lipompo tsa bongaka.

Bokgoni ba rona ba tlhahiso ya PCB bo tshehetsa dibopeho tse teteaneng tsa mekhahlelo e mengata le taolo e tiileng ya impedance eo di-drive tsa servo tsa BLDC di e hlokang.

Stepper Motors

Dimotara tsa Stepper di arola potoloho e felletseng ka mehato e arohaneng — mehato e 200/phetoho (1.8°/kgato) ke tekanyetso bakeng sa di-stepper tse kopaneng. Kgato ka nngwe e laelwa ka ho matlafatsa motswako o itseng wa mohato wa stator; rotor e tsamaisana le matla a makenete a hlahang mme e tshwara moo. Ha ho hlokahale sekhoutu sa boemo bakeng sa taolo e bulehileng, e leng se etsang hore di-stepper di be le ditjeo tse tlase ho di-printer tsa 3D, mechini ya CNC, le othomathiki ya laboratori. Microstepping (½, ¼, 1/16, kgato ya 1/32) e fana ka motsamao o boreleli ka ho lekanya motlakase pakeng tsa mekhahlelo e mmedi ka nako e le nngwe, ka theko ya torque e itseng e tshwarang.

Moeli oa bohlokoa ke ho thothomela ha molumo: maqhubung a itseng a mohato, ho kenngoa ha matla ho lumellana le ho thothomela ha molumo ka mechine, e leng se bakang mehato e lahlehileng le boitšoaro bo sa lebelloang. DSP ea ho thothomela ha molumo ho bakhanni ba letoto la Trinamic TMC e lefella firmware. Torque e boetse e theoha ka matla ka holim'a maqhubu a sekhutlo, kahoo litsamaiso tsa stepper li lekanyelitsoe ho lebelo le itekanetseng (hangata ka tlase ho 1,000 rpm bakeng sa torque e nang le moelelo).

Litlhoko tsa PCB tsa mokhanni: Taolo ea motlakase o sa fetoheng oa Chopper (A4988, DRV8825, TMC2209), tataiso le pulse ea mohato ho tsoa ho microcontroller, li-resistors tsa kutlo ea motlakase oa coil. Li-IC tsa mokhanni oa stepper li qhala mocheso o moholo esita le ha o eme - ho tšela koporo tlas'a pad ea mocheso le li-vias tsa mocheso ho ea libakeng tse ka hare ha se khetho. Litšebeliso: Liprinta tsa 3D, li-router tsa CNC, mechini ea ho khetha le ho beha, litsamaiso tsa pane/ho sekamela ha khamera, mechini ea masela.

Servo Motors

Servo ha se mofuta wa enjene empa ke moralo wa taolo — sistimi ya taolo ya boemo bo koetsoeng e kopanyang enjene efe kapa efe (e brushed DC, BLDC, kapa AC synchronous) le encoder ya boemo le molaoli wa maikutlo. Se hlalosang servo ke sekotwana: tlhahiso ya encoder ha e bapiswa le taelo ya boemo, phoso e kganna PID kapa molaoli wa cascade, e ntshang taelo ya hajwale sethaleng sa motlakase. Ditsamaiso tsa servo tsa indasteri di fihlella bandwidth ya 100–1,000 Hz le ho nepahala ha ho beha ±0.01 mm kapa ho feta ka di-encoder tse feletseng tsa 24-bit (Hiperface, EnDat, BiSS-C protocols).

Litlhoko tsa PCB tsa mokhanni: Inverter e tšoanang ea BLDC ea mekhahlelo e meraro joalo ka e kaholimo, hammoho le sebopeho sa encoder (quadrature decoder kapa SPI/BiSS bakeng sa absolute), li-ADC tsa current-sense, le DSP/FPGA tse kenyang tšebetsong algorithm ea taolo. Li-drive tsa servo tsa indasteri li eketsa sebopeho sa EtherCAT kapa PROFINET, ts'ebetso ea Safe Torque Off (STO) ho latela IEC 61508 SIL 2, le tlhokomelo e pharalletseng ea liphoso. Li-servo tsa boithabiso li sebelisa sebopeho se bonolo: 50 Hz PWM, boemo ba lisete tsa bophara ba pulse ba 1-2 ms. Litšebeliso: manonyeletso a liroboto tsa indasteri, li-axes tsa CNC, ho sebetsana le semiconductor wafer, libaka tsa taolo ea sefofane, mechini ea ho etsa ente.

Bakeng sa li-PCB tsa servo drive tse hlokang ho tsamaisoa ha differential pair e laoloang le sebopeho sa EMI-harded mixed-signal, bona bokgoni ba rona ba ho rala le ho etsa PCB bo phahameng.

Linear Electric Actuators

Li-actuator tsa motlakase tse otlolohileng li fetolela motsamao oa enjene e potolohang ho ea ho phallo e otlolohileng ka sekerefu sa lead, sekerefu sa bolo, rack-and-pinion, kapa phetiso ea lebanta - kapa li sebelisa enjene e otlolohileng ka kotloloho. Likerefu tsa lead (khoele ea acme) lia itlama ebile li theko e tlase; likerefu tsa bolo li eketsa li-bearing tsa bolo tse potolohang hape bakeng sa khohlano e tlase, katleho e phahameng, le backlash e tlase. Li-motor tse otlolohileng li felisa phetiso ea mechini ka botlalo, li fihlella lebelo le phahameng ka ho fetisisa le backlash e le sieo ka litšenyehelo tsa ho hloka ho kenya khoutu ea boemo ka har'a stroke e felletseng le litlhoko tse phahameng tsa elektroniki tsa matla.

Dipharamithara tsa bohlokwa tsa moralo: stroke, matla a tlhoro le a tswelang pele, lebelo, potoloho ya mosebetsi, ho kgona ho kganna morao (ho bohlokwa bakeng sa polokeho ditshebedisong tsa batho ba sebedisanang), tekanyo ya IP, le protocol ya puisano (RS-485, CANbus, EtherCAT bakeng sa diyuniti tsa diindasteri). Diswitjhi tse nang le moedi — hangata di kwetswe hodima PCB input bakeng sa boitshwaro bo bolokehileng — di hlalosa meedi ya maeto a mechine. Tlhokomelo ya hajwale e nolofalletsa tshireletso ya ho feta tekano le taolo ya matla ditshebedisong tsa loop e kwetsweng. Ditshebediso: di-workstation tse fetolwang bolelele, dibethe tsa sepetlele, di-tracker tsa letsatsi, di-press tsa diindasteri, di-actuator tsa di-valve, ditaolo tsa sefofane sa bobedi.

Li-actuator tsa Piezoelectric

Li-actuator tsa piezoelectric li sebelisa phello ea piezoelectric e fapaneng ka har'a liseramike tsa PZT (lead zirconate titanate): tšimo ea motlakase e sebelisitsoeng e etsa hore lattice ea kristale e atolohe kapa e kokobele. Sehlopha sa li-disc tse tšesaane tsa PZT ka har'a polarity e fapanyetsanang se eketsa khatello ka bongata - sehlopha sa 40 mm se khannoang ho 150 V se hlahisa hoo e ka bang 60 µm ea ho falla ka matla a thibelang a li-kilonewton tse 'maloa. Nako ea karabelo e sebakeng sa microsecond; qeto ha e na moeli ka khopolo-taba (sub-nanometer e nang le ho khanna ha mokhoa oa ho tjhaja). Meeli e 'meli ea bohlokoa ke stroke e nyane ntle le ho amplification ea mechini le hysteresis (histori ea motlakase ea ho lieha ha ho falla ka 10-15%), e hlokang puseletso lits'ebetsong tse nepahetseng.

Litlhoko tsa PCB tsa mokhanni: Amplifier ea motlakase o phahameng (0–150 V kapa ±200 V), motlakase o phahameng oa tlhahiso ho tjhaja mojaro oa capacitive (100 nF ho isa ho 100 µF). OPA454, OPA541, kapa li-chip tsa mokhanni oa piezo tse inehetseng. Mokhoa oa ho tjhaja ho fapana le ho khanna mokhoa oa motlakase ho fokotsa hysteresis lits'ebetsong tse thata ka ho fetisisa. Ho itšehla thajana ha PCB pakeng tsa sethala sa amplifier sa HV le potoloho ea logic/puisano hoa hlokahala bakeng sa tšireletso ea polokeho le lerata. Litšebeliso: mekhahlelo ea lithography ea semiconductor, li-scanner tsa AFM, li-injector tsa mafura, li-transducer tsa ultrasonic, litsamaiso tsa ho itšehla thajana tsa vibration, taolo ea valve e nepahetseng.

3. Li-Actuator tsa Hydroelectric le Pneumatic: Matla, Lebelo le Taolo

Li-actuator tsa motlakase oa mokelikeli — haeteroliki le pneumatic — li ​​hlahisa matla ka mokelikeli o hatelletsoeng o sebetsang piston kapa vane. Li sebetsa ka molao-motheo o tšoanang oa motheo (khatello × sebaka = matla) empa li fapana haholo ka mefuta ea khatello, ho hatelloa le ts'ebeliso.

Li-Actuator tsa Hydraulic

Mekhoa ea haeteroliki e sebetsa ka har'a bare ea 100–700 (1,450–10,000 psi), e hlahisa matla ao ho seng actuator ea motlakase ea boholo bo tšoanang e a atamelang. Silindara ea bore ea 100 mm ho bare ea 350 e hlahisa hoo e ka bang 274 kN - e fetang lithane tse 27. Boima bona ba matla bo etsa hore li-hydraulic e be khetho feela e utloahalang bakeng sa lisebelisoa tsa kaho, li-press tsa forge, li-rudder tsa likepe, le taolo ea sefofane ea mantlha.

Li-cylinder tsa hydraulic tse otlolohileng (tse sebetsang ka bonngoe kapa tse sebetsang habeli) le li-motor tsa hydraulic tse potolohang ke mefuta e 'meli ea motheo. Taolo e nepahetseng ea boemo e hloka li-valve tsa servo tsa electrohydraulic (EHSVs) kapa li-valve tsa taolo tse tsamaeang ka tsela e lekanang, tse fetolelang taelo ea ±10 V kapa 4-20 mA ho tloha ho PCB ea taolo ho ea ho phallo ea spool e lekanang 'me ka hona phallo e lekanang ho ea ho silindara. Li-bandwidth tsa valve ea servo li fihla ho 50-200 Hz, e leng se etsang hore taolo ea boemo ba hydraulic e koetsoeng e sebetse ho li-simulator tsa sefofane, li-suspension tsa likoloi tse sebetsang, le likhatiso tsa indasteri.

Karolo ea PCB lits'ebetsong tsa haeteroliki: Mokhanni oa PCB ha a fe actuator matla — e laola valve. Liphetho: Sekoahelo sa hona joale sa 4–20 mA kapa phapang ea ±10 V ho li-valve tsa servo; PWM ho li-valve tse lekanang tsa solenoid tse nang le karabelo ea hona joale. Maikutlo a boemo ho tsoa ho li-sensor tsa LVDT a hloka ho atolosoa ha phapang ka nepo le ho sefa ka tsela e tlase ho PCB. Bakhanni ba li-valve tsa Solenoid ba sebelisa lipotoloho tsa halofo ea borokho tse nang le taolo ea hona joale ea chopper — diode ea freewheeling e tlameha ho lekanyetsoa bakeng sa motlakase oa inductive kick oa coil, o ka fihlang ho motlakase oa phepelo oa 5–10× ha o tima ntle le clamp.

Li-actuator tsa moea

Li-actuator tsa pneumatic li sebelisa moea o hatelletsoeng ka libare tse 4-10. Khatello e tlase ho feta li-hydraulic e bolela matla a fokolang sebakeng ka seng sa yuniti - empa moea o hloekile, o ka hatelloang (e leng se fanang ka ho latela melao ea tlhaho), 'me o bolokehile lijong le meriana moo tšilafalo ea oli ea hydraulic e sa amoheleheng. Litsamaiso tsa pneumatic li potlakile ho buloa/ho tima (karabelo ea li-valve ka li-millisecond) 'me li bonolo ka mokhoa oa mechini.

Mefuta e tloaelehileng e kenyelletsa lisilindara tse sebetsang ka bonngoe (ho khutla ha selemo), lisilindara tse sebetsang habeli (moea mahlakoreng ka bobeli), lisilindara tse se nang lithupa (kariki 'meleng oa silindara bakeng sa lits'ebetso tse tlase tsa ho thiba ka nako e telele), le li-actuator tse potolohang tsa rack-and-pinion bakeng sa ts'ebetso ea valve ea ho reteleha ka kotara. Taolo ea pneumatic e nang le tekanyo - ho fihlella maemo a mang ntle le a bulehileng ka botlalo kapa a koetsoeng ka botlalo - e hloka li-valve tse lekanang tsa electropneumatic le karabelo ea boemo, empa ho hatelloa ha moea ho etsa hore ho beoa ho nepahetseng ho be thata ka tlhaho ho feta taolo ea servo ea motlakase kapa ea hydraulic.

Karolo ea PCB litsamaisong tsa pneumatic: Mokhanni oa valve ea Solenoid (khoele ea VDC ea 24, tlhahiso ea MOSFET, diode ea freewheeling ea bohlokoa). Bakeng sa li-valve tse lekanang: tlhahiso ea taelo ea 4–20 mA kapa 0–10 V. Bakeng sa li-positioner tsa electropneumatic tse koetsoeng: loop ea microcontroller PID e nang le tlhahiso ea I/P converter le potentiometer kapa LVDT position feedback.

Hydraulic vs. Pneumatic vs. Electric: Matrix ea Liqeto

Bakeng sa lits'ebetso tse ncha tse ka tlase ho 20 kN moo meralo ea motheo e seng teng, litšenyehelo tsohle tse kentsoeng hangata li rata motlakase. Hydraulic e ntse e le khetho e utloahalang kaholimo ho moeli oo indastering e boima - meralo ea motheo ke litšenyehelo, eseng actuator ka boeona.

4. Li-Actuator tse Ikhethang: Solenoid, SMA, Thermal le Soft

Mefuta e 'maloa ea li-actuator e lula libakeng tse itseng moo litharollo tse tloaelehileng tsa motlakase, tsa haeteroliki, kapa tsa pneumatic li sa sebetseng ka lebaka la boholo, boima, ho lumellana ha lintho tse phelang, kapa lithibelo tsa tikoloho ea ts'ebetso.

Li-Actuator tsa Solenoid

Solenoid e hlahisa matla a otlolohileng ka ho hula plunger ea ferromagnetic ka har'a coil ha motlakase o phalla. Matla a batla a lekana le sekwere sa motlakase 'me a lekana le sekwere sa mocheso oa moea - a hlahisa matla a phahameng ka ho otla hakhutšoanyane empa a theoha ka matla ha lekhalo le ntse le eketseha. Ho otla ho tloaelehileng: 1–25 mm. Li-solenoid tse tsitsitseng li sebelisa makenete ea kamehla ho tšoara e 'ngoe ea maemo a mabeli a tsitsitseng ntle le matla a tsoelang pele; ho hlokahala pulse ea motlakase feela ho fetola maemo, e leng se etsang hore e be a loketseng lits'ebetso tsa potoloho e tsamaisoang ke betri kapa ea mosebetsi o tlase.

Tlhokomeliso ea mokhanni oa PCB: Khoele ea solenoid e boloka matla e le inductor. Ha switch e buleha, matla ana a tlameha ho ea kae-kae - ntle le diode ea freewheeling kapa clamp ea TVS, spike ea motlakase e tla senya transistor ea switching nakong ea lipotoloho tse 'maloa tsa pele. Bakeng sa li-solenoid tse lekanang (li-valve tsa hydraulic proportional), PWM ho 100–1,000 Hz ka taolo ea hona joale e koetsoeng e fihlella maemo a matla a mahareng. Lisebelisoa: liloko tsa mamati, li-injector tsa mafura, bakhanni ba coil ea relay, bafofisi ba li-valve tsa pneumatic, li-brake tsa electromagnetic.

Li-Actuator tsa Sebopeho le Memori (SMA)

Terata ea SMA ea Nitinol (nickel-titanium) e fokotseha ka 4-8% ea bolelele ba eona ha e futhumatsoa ka holim'a mocheso oa eona oa phetoho ea austenite (hangata 40-90°C ho latela sebopeho). Ho futhumatsa ho hanyetsang ka motlakase o laoloang ke mokhoa o tloaelehileng oa ho susumetsa. Khatello ea maikutlo e hlahisoang nakong ea phetoho ea mohato e fihla ho 200 MPa - e fetang mesifa ea baeloji (~0.3 MPa) - ka terata e se nang likarolo tse tsamaeang, e se nang makenete, 'me e se na tšitiso ea motlakase. Moeli ke sekhahla sa potoloho: ho pholisa ke mohato o liehang, hangata 0.1-2 Hz moeeng o lokolohileng, o ntlafalang haholo ka ho qobelloa ha convection kapa ho pholisa ha thermoelectric.

PCB e fana ka mokhanni oa motlakase o sa fetoheng ka tlhokomelo ea khanyetso bakeng sa taolo ea loop e koetsoeng (Khanyetso ea Nitinol e fetoha ka 15-25% nakong ea phetoho ea mohato 'me ka hona e ka sebetsa e le moemeli oa boemo). Lisebelisoa: lisebelisoa tsa ho buoa tse sa keneleng metsi haholo, malebela a sebetsang a endoscope, li-stents tsa methapo ea mali, li-latches tsa ho kenngoa ha sathelaete, lisebelisoa tsa karabelo ea haptic, li-gripper tsa robotic libakeng tsa MRI.

Thermal Actuators

Li-actuator tsa mocheso tsa bimetallic li sebelisa katoloso e fapaneng ea mocheso pakeng tsa litšepe tse peli tse kopantsoeng ho hlahisa motsamao o kobehang ha ho futhumatsoa. ​​Li-actuator tsa motlakase oa boka li sebelisa katoloso ea volumetric ea boka ba phetoho ea mohato ho sutumelletsa piston - e hlahisang matla a maholo (mashome ho isa ho makholo a li-newton) ntle le matla a motlakase a hlokahalang liphetolelong tse sa sebetseng. Bonolo le ts'epo ea li-engine tsa boka li li etsa maemo a tloaelehileng bakeng sa li-thermostat tse pholisang enjene ea likoloi le li-manifold tsa ho futhumatsa tse ka tlas'a fatše. Mefuta e futhumatsang ka motlakase e eketsa khoele ea hitara e hanyetsang bakeng sa taolo e sebetsang; PCB ea mokhanni e fana ka feela motlakase o laoloang ho hitara le maikutlo a mocheso ho tsoa ho thermistor kapa thermocouple.

Li-polymer tse Sebetsang ka Motlakase (EAP) le Li-Actuator tse Bonolo

Di-actuator tsa elastomer tsa Dielectric (DEAs) di kopanya filimi e lumellanang ya elastomeric pakeng tsa dikarolo tse pedi tsa electrode tse tenyetsehang. Ho sebedisa 1-5 kV ho hohela di-electrode mmoho, ho hatella elastomer ka mahlakoreng - ho hlahisa mefuta e fihlang ho 380%, hole haholo le thepa efe kapa efe e tiileng ya actuator. Di-actuator tsa Ionic polymer-metal composite (IPMC) di kobeha tlasa 1-5 V ha di-ion tse nang le metsi di falla tlasa tshimo ya motlakase, ho baka ho ruruha ho fapaneng. Mefuta ka bobedi e bonolo, e kgutsitseng, e bobebe, mme e tsamaisana le bio - kgetho e nepahetseng bakeng sa di-haptic tse aparwang, di-gripper tse bonolo tsa roboto, matsoho a maiketsetso, le diroboto tse ka tlasa metsi moo di-actuator tse thata di ke keng tsa dumellana le bokahodimo bo sa tlwaelehang.

Li-PCB tsa bakhanni ba DEA li hloka tlhahiso ea motlakase o phahameng (boost converter hammoho le multiplier ea motlakase) ka taolo e nepahetseng. Bakhanni ba IPMC ba hloka taolo ea hona joale ea motlakase o tlase feela empa ba tlameha ho amohela tšobotsi e sa tloaelehang ea impedance ea ionomer. Ka bobeli li beha liphephetso tse ikhethang tsa moralo oa PCB. Bakeng sa liboto tse rarahaneng tsa mekhahlelo e mengata tse sebeletsang lits'ebetso tsena, tšebeletso ea rona ea kopano ea PCB ea turnkey e sebetsana le ho fumana likarolo, ho beha SMT, le netefatso ea ts'ebetso mosebetsing o le mong.

5. Mefuta ea Actuator ho Liroboto: Libetsa tsa Liindasteri, Li-Cobot, Liroboto tse Maoto le Li-Humanoids

Robotics ke sebaka sa ts'ebeliso se batlang tse ngata ka nako e le 'ngoe thepa e 'ngoe le e 'ngoe ea actuator: karolelano e phahameng ea torque-to-weight, bandwidth e phahameng, ho nepahala ha sebaka, ho khanna morao bakeng sa tšebelisano e sireletsehileng ea batho, bophelo ba tšebeletso ea potoloho e telele, le kopanyo e tiileng le lisebelisoa tsa elektroniki - tsohle ka har'a sephutheloana se tlamehang ho jara matla a sona le ho bala. Ha ho mofuta o le mong oa actuator o khotsofatsang tsena tsohle ka nako e le 'ngoe. Ke ka lebaka lena mekhahlelo e fapaneng ea roboto e kopaneng meralong e fapaneng ea actuator, le hore na ke hobane'ng ha indasteri ea roboto e tsamaisitse boqapi bo bongata ba actuator lilemong tse leshome tse fetileng ho feta tšimo efe kapa efe e 'ngoe.

Libetsa tsa Roboto tsa Indasteri: Ho nepahala le ho Pheta-pheta

Matsoho a nang le li-axis tse tšeletseng (FANUC, KUKA, ABB, Yaskawa) a beha pele ho pheta-pheta ho feta tsohle — ± 0.02 mm sebakeng sa setsi sa sesebelisoa ke tlhaloso e tloaelehileng. Sehokelo se seng le se seng se sebelisa enjene ea servo ea BLDC e kopantsoeng le harmonic drive (strain wave gear) reducer ka karolelano ea 80:1–160:1. Harmonic drives e fihlella ho se be le backlash ka har'a sephutheloana se kopaneng — e leng ea bohlokoa bakeng sa ho pheta-pheta. Li-encoder tse felletseng tsa multi-turn (resolution ea 24–28 bit, EnDat kapa BiSS-C protocol) li koala selika-likoe sa boemo. PCB ea servo drive bakeng sa axis ka 'ngoe e kenya tšebetsong taolo ea hona joale ho 4–32 kHz, taolo ea lebelo ho 1–4 kHz, le taolo ea boemo ho 250 Hz–2 kHz. EtherCAT kapa PROFINET fieldbus e hokahanya li-PCB tsa drive le molaoli oa roboto, e hloka silicon e itseng ea PHY/MAC le moralo o hlokolosi oa EMC ho thibela ho fetola lerata ho senya puisano ea fieldbus.

Liroboto tse Kopanetsoeng (Li-Cobot): Tlhokomeliso ea Matla le ho Ikopanya ka Sireletseho

Li-Cobot (Universal Robots UR series, FANUC CRX, ABB GoFa) li eketsa kutlo ea torque ea kopanelo ho tlhophiso ea servo motor + harmonic drive. Transducer ea torque ea strain-gauge e holim'a flange ea tlhahiso ea kopanelo, kapa khakanyo ea torque e thehiloeng ho motor-current, e lemoha ho kopana ho sa lebelloang ka har'a potoloho e le 'ngoe ea taolo - ho emisa motsamao pele matla a sebelisoang ho motho a feta 80 N (moeli oa ho fokotsa matla le matla oa ISO/TS 15066). Meralo e meng e sebelisa li-actuator tsa elastic series (SEAs), moo selemo se leka-lekaneng pakeng tsa tlhahiso ea lebokose la li-gear le khokahano ea roboto se fetolang ho kheloha (ho lekanngoa ka encoder) ho qobella - ho latela melao ea tlhaho ntle le sensor e arohaneng.

PCB e kopaneng bakeng sa cobot e tlameha ho kenya tšebetsong ho sisinyeha ha borokho ba Wheatstone, ho lokisa lets'oao le fapaneng le SNR e kaholimo ho 80 dB, ho nka disampole tsa ADC ho 1–10 kHz bakeng sa karabelo ea torque, le ho beha leihlo polokeho ea likanale tse peli ho latela ISO 13849 PLd kapa PLe - tsela ea ho beha leihlo torque ea bohlokoa bakeng sa polokeho e tlameha ho ikemela ka 'mele tseleng ea mantlha ea taolo ea motsamao.

Liroboto tse nang le Maoto: Quasi-Direct Drive e Fetola Papali

Liroboto tse nang le mahlakore a mane (Boston Dynamics Spot, MIT Cheetah, ANYmal) le liroboto tse mathang ka maoto a mabeli li entse hore drive e otlolohileng ka ho toba (QDD) e be eona e ncha e hlalosang actuator ea lilemo tse leshome tse fetileng. Li-actuator tsa QDD li sebelisa li-gear ratios tse tlase haholo (1:1–9:1) tse nang le li-motor tsa BLDC tse nang le torque e phahameng tse leketlileng ka ho khetheha bakeng sa morero ona. Sephetho ke lenonyello le ka khannoang morao haholo - matla a tšusumetso ea fatše a feta lenonyellong ntle le ho le senya, 'me leoto le ka monya le ho khutlisa matla joalo ka selemo. Li-drive tsa setso tse nang le karolelano e phahameng li ke ke tsa etsa sena: gear e itlama ka boeona, kahoo matla 'ohle a tšusumetso a tlameha ho monngoa ke sebopeho se thata.

Phehisano: Manonyeletso a QDD a ke ke a kgona ho ema kgahlanong le matla a khoheli ntle le motlakase o tswelang pele, mme a hloka maqhubu a maholo a mokgahlelo (mme ka hona a matla a elektroniki a maholo) ho feta di-drive tse lekanang tsa tekanyo e hodimo. Mokhanni wa PCB o tlameha ho tshehetsa maqhubu a hodimo a 30–100 A ho 24–48 V ka hara sephutheloana se kopaneng, se sebetsang hantle ka mocheso se kopantsweng ka ho toba leboteng la manonyeletso a roboto. Tlhahiso ya rona ya PCB e boima ya koporo (ho fihlela ho 10 oz koporo) e sebetsana ka kotloloho le tlhoko ena.

Liroboto tsa Humanoid: Bothata bo Boima ka ho Fetisisa ba Actuator

Li-Humanoids (Tesla Optimus, Setšoantšo sa 02, Agility Digit, Boston Dynamics Atlas) li hloka likhato tse 20-40 tsa tokoloho 'meleng o nang le matla a oona, ho bala le ho utloa. Ha ho mofuta o le mong oa actuator o khotsofatsang litlhoko tsohle tsa manonyeletso. Metsoako ea meralo ea hona joale ea humanoid: Li-actuator tsa QDD BLDC liropeng, mangoleng le maqaqailaneng bakeng sa ho tsamaea; li-actuator tse nyane tsa harmonic drive servo lehetleng le setsoe bakeng sa ho laola; li-actuator tsa servo tse tsamaisoang ka cable kapa tse nyane menoaneng bakeng sa ho sebetsa hantle; le li-actuator tsa motlakase tse otlolohileng mokokotlong le 'meleng bakeng sa ho tsamaea ha kutu.

Li-PCB tsa mokhanni tse ka hare ho lenonyeletso la motho li emela tse ling tsa lisebelisoa tsa elektroniki tse batloang haholo tlhahisong kajeno: khatello e phahameng ea hona joale (30–100 A peak) ka bophahamo bo fokolang, ho utloa ha hona joale ea likanale tse ngata ka qeto ea microsecond, puisano ea nako ea sebele ea EtherCAT kapa CAN FD, tsamaiso ea mocheso ka tlung e koetsoeng sebakeng sa 85°C, le setifikeiti sa polokeho ea ts'ebetso ho latela IEC 62061. Li-encoder tsa makenete tse felletseng (AS5047, MA702) li nkile sebaka sa li-encoder tsa optical manonyellong a mangata a motho - tse nyane, matla a tlase, tse hanelang ho thothomela haholoanyane, 'me joale li fumaneha ka theko e tlase ho $1 ka bophahamo.

Phetoho e pharalletseng ea li-hardware tsa liroboto ho tloha ka 2020 e nolofalitsoe haholo-holo ke tsoelo-pele e meraro ea boemo ba PCB: li-semiconductor tsa matla tsa GaN le SiC tse nang le lekhalo le leholo tse nolofalletsang maqhubu a ho fetola a phahameng ka tahlehelo e tlase liphuthelong tse nyane; li-encoder tsa makenete tse nang le matla a tlase a qeto e phahameng ka litheko tse kholo tsa 'maraka; le thepa e tsoetseng pele ea sebopeho sa mocheso le mocheso o tletseng koporo ka li-array tse lumellang matla a mangata mehatong e menyenyane ea li-PCB tsa mokhanni. Bakeng sa lik'hamphani tsa liroboto tse ntlafatsang litsamaiso tsena, tšebeletso ea rona ea prototyping ea PCB e tšehetsa phetoho e potlakileng ho tloha moralo ho ea ho hardware e lekiloeng. Tsela e teteaneng ea ho baleha BGA bakeng sa li-ASIC tsa liroboto e koahetsoe ke bokhoni ba rona ba ho kopanya BGA PCB.

6. Kamoo Mofuta oa Actuator o Tsamaisang Moralo oa PCB: Matla, Thermal le Tšireletso

Mofuta oa actuator ke thibelo e ka sehloohong ho PCB ea mokhanni oa eona. Ena ha se khetho - ke kamano ea 'mele. Tafole e ka tlase e akaretsa litlamorao tsa meralo ka mofuta oa actuator. Ntho e 'ngoe le e 'ngoe e ho eona e na le phello e tobileng bakeng sa palo ea lera, boima ba koporo, khetho ea likarolo, le topology ea potoloho ea tšireletso.

Meralo ea Matla

Hangata li-PCB tsa mokhanni oa actuator li hloka libaka tse ngata tsa motlakase tse arohaneng: terene ea enjene ea motlakase o phahameng (12–48 V bakeng sa li-actuator tsa DC; bese ea 700 V DC bakeng sa li-drive tsa servo tsa indasteri), phepelo ea logic (3.3 V kapa 5 V), referense ea analog e nepahetseng (bakeng sa li-ADC le conditioning ea sensor), le phepelo ea gate drive (12–15 V, bootstrap kapa e arohaneng). Ho aroloa ha Galvanic pakeng tsa lehlakore la motor le lehlakore la logic/puisano - ka li-converter tsa DC-DC tse arohaneng kapa bakhanni ba gate ba arohaneng - ke tlamo meralong ea indasteri bakeng sa tšireletso le tšireletso ea lerata (IEC 62061, ISO 13849). Tlhahiso ea rona ea PCB ea mekhahlelo e 4 e fana ka ho kopanya matla le sefofane sa fatše se inehetseng seo li-PCB tsa actuator tsa literene tse ngata li se hlokang.

Tsamaiso ea Thermal

Koloi ea BLDC ho 48 V / 10 A e nang le katleho ea 95% e qhala hoo e ka bang 25 W mohatong oa motlakase - ho tsoa mehloling e meraro: tahlehelo ea conduction (I²R ho MOSFET), tahlehelo ea switching (e lekanang le f _sw × V _DS × I _D ), le tahlehelo ea gate drive. Ho sebetsana le sena ho hloka koporo ea 2-3 oz holim'a li-layers tsa motlakase, mocheso ka li-arrays (bophara ba 0.3-0.5 mm, bophahamo ba 1-1.5 mm) ho hokahanya li-drain pad tsa MOSFET ho li-plane tsa koporo tse ka hare, 'me ka linako tse ling li-sink tsa mocheso tsa aluminium tse kantle li kentsoe ho PCB. Li-MOSFET tsa GaN li fetoha ho 200-500 kHz khahlanong le 20-50 kHz bakeng sa silicon - maqhubu a phahameng a fokotsa li-passive empa a hloka sebopeho se tiileng sa PCB ho boloka switching loop inductance e ka tlase ho 5 nH. Bakeng sa mapolanka a hlokang koporo ea 2 oz le ho feta li-layers tse ka hare, tšebeletso ea rona ea tlhahiso ea PCB ea li-layers tse ngata e akaretsa litlhoko tsena tsa koporo e phahameng.

PCB ha e theohele qetong ea actuator - ke karolo ea sistimi ea actuator. Lithibelo tsa mocheso, motlakase le tsa mechini li phalla ho tloha mofuteng oa actuator ho ea khethong e 'ngoe le e 'ngoe ea moralo oa boto. Bakeng sa lithibelo tse ikhethileng tsa moralo oa PCB oa actuator le tlhahlobo ea DFM , sehlopha sa rona sa boenjiniere se hlahloba sebopeho khahlanong le litlhoko tsa hajoale, tsa mocheso le tsa botšepehi ba lets'oao pele ho etsoa.

7. Moralo oa Khetho ea Actuator le Tataiso ea Litšupiso tse Potlakileng

Khetho ea actuator ke ts'ebetso ea boenjiniere, eseng tafole ea ho batla. Moralo o latelang oa mehato e mene o hlophisa qeto 'me o hlahisa liphapanyetsano tsa bohlokoa pele karolo efe kapa efe e hlalosoa.

Mohato oa 1 — Hlalosa litlhoko tsa motsamao: Hlalosa mofuta oa motsamao (o otlolohileng/o potolohang), sebaka sa ho otloa kapa sa angular, matla a tlhoro le a tsoelang pele kapa torque, lebelo le phahameng ka ho fetisisa, ho nepahala ho hlokahalang ha sebaka (ho bula/ho tima, lintlha tse ngata, ho tsoela pele, nanometer), le potoloho ea mosebetsi. Liparamente tsena ka botsona li felisa malapa a mangata a actuator hang-hang.

Mohato oa 2 — Lekola tikoloho ea ts'ebetso: Tekanyetso ea IP, mocheso o fapaneng, ho pepesehela lik'hemik'hale (kamore ea ho hloekisa, sebaka se sireletsehileng sa lijo, ho hlatsoetsa), ho thothomela le ho tšoha, ho arola sepakapaka se phatlohang (ATEX, NEC), le meralo ea motheo e fumanehang (na moea o hatelletsoeng kapa matla a hydraulic a se a ntse a le teng?). Tšebeliso ea kamore ea ho hloekisa meriana e kenyelletsa oli ea hydraulic hang-hang. Sesebelisoa sa ho cheka merafo se kenyelletsa hang-hang li-actuator tsa motlakase tse tsamaisoang ke betri bakeng sa letsoho le ka sehloohong.

Mohato oa 3 — Lekola litlhoko tsa taolo le kopanyo: Ho buloa/ho tima khahlanong le taolo e lekanang, ho buloa ha potoloho khahlanong le ho koaloa ha potoloho, taolo ea boemo khahlanong le matla, protocol ea puisano (analog, PWM, RS-485, CANbus, EtherCAT), boemo ba ts'ireletso bo sebetsang bo hlokahalang (PLc/PLd/SIL 2), le kopanyo le PLC kapa molaoli oa roboto ea teng. Litlhoko tsena li khetholla ho rarahana ha PCB ea mokhanni le litšenyehelo tsa setifikeiti - hangata ntlha e kholo ho feta litšenyehelo tsa hardware ea actuator ka boeona.

Mohato wa 4 — Bala kakaretso ya ditjeo tsa beng: Moya o hatelletsoeng o bitsa tjhelete e ka bang makgetlo a 5-8 ho feta yuniti ka nngwe ya matla a bohlokwa a mechini ho feta tsamaiso ya motlakase e tobileng. Ditsamaiso tsa haeteroliki di hloka ho nkelwa sebaka ke mokelikeli le sekwahelo nako le nako mme di jara boikarabelo ba tshilafatso ya oli. Ditsamaiso tsa motlakase di na le ditjeo tse hodimo tsa pele empa di na le ditjeo tse tlase tsa tshebetso, ha ho na dintho tse sebediswang, le dikemiso tsa tlhokomelo tse ka lebellwang esale pele. Bakeng sa diketso tse ntjha tse ka tlase ho 20 kN, kakaretso ya ditjeo tse kentsweng e batla e rata motlakase - ditjeo tsa meralo ya motheo ya moya o hatelletsoeng feela hangata di feta PCB ya motlakase le ya mokhanni di kopantswe.

Kopo ea Potlako ea Kopo

Ho kgetha mofuta o nepahetseng wa actuator ke qeto ya pele. Ho aha di-elektroniki ho di kganna ka nepo ke qeto ya bobedi - mme ke yona eo boholo ba diphoso di etsahalang ho yona. Borokho bo sa lekaneng ba H bo a itshenya setulong sa pele. Servo drive e nang le tsamaiso e mpe ya encoder e hlahisa jitter ya boemo eo sefe kapa sefe se ke keng sa e tlosa. Mokhanni wa piezoelectric ntle le ho ikarola hantle o hloleha ho sebetsa ka EMC. Ho Highleap Electronics, re hlahisa le ho kopanya mefuta yohle ya di-PCB tsa taolo ya actuator - ho tloha ho di- PCB tsa motlakase tsa maemo a indasteri ho isa ho di-servo drive tse kopaneng tse kopaneng bakeng sa diroboto. Kopano ya rona ya PCB ya turnkey e sebetsana le ho fumana, kopano ya SMT, le teko ya tshebetso - ho fokotsa nako ya hao ho tloha moralong ho ya ho hardware e netefaditsweng. Kopa khotheishene bakeng sa PCB ya taolo ya actuator ya hao mme o re bolelle mofuta wa actuator, boemo ba matla, le tikoloho - re tla e nka ho tloha moo.