Ziziphi ii-screwdrivers zombane kunye nendlela yokukhetha

Akukho clutch yokhuseleko naluphi na uhlobo kwiscrewdriver sombane, ngoko ke isakhiwo soomatshini silula, ukulungiswa kukulungele, kwaye ixabiso liphantsi.

(1) Uhlobo lolawulo olungelulo lwetorque

Esi sisixhobo sokucima amandla okuzenzekelayo. Ingaba indibano yomsonto igqityiwe okanye ayigqitywanga ngokuzimeleyo kumiselwa ngumqhubi. Umsebenzisi kufuneka agxininise ekujongeni inkqubo yokusebenza. Nangona umsebenzi unzima kwaye unzima kakhulu, umgangatho wendibano awunakuqinisekiswa. Xa umqhubi eqinisekisa ngokuzimeleyo ukuba indibano igqityiwe, uqhawula unikezelo lwamandla ukugqiba umsebenzi. Nangona kunjalo, ngenxa yempembelelo yamandla ajikelezayo emva kokuphuma kwamandla, i-cross groove okanye i-slot ihlala yonakaliswa; ukuba umqhubi akaqapheli, kulula ukuba i-motor ibhuleki ixesha elide, ukunciphisa ubomi besixhobo kunye nokutshintsha. Olu hlobo lwesixhobo lwalusetyenziselwa izikrufu zokhuni ezinokusabalalisa okukhulu kwiintsuku zokuqala, kwaye isantya sokujikeleza akufanele sibe phezulu. Kutshanje, ayikhange isetyenziswe.Impahla yokuzalisa ingxowa yokulala

Nangona izinto zokuzalisa iingxowa zokulala ziquka phantsi kunye nekotoni, ukusuka kumbono wokugcinwa kokufudumala, ukuhla kunokugcinwa kokufudumala okungcono, kukhaphukhaphu, kulula ukugoqa kunye nokugcina, kwaye iyona nto ihleli. Ke apha sazisa ubukhulu becala phantsi imathiriyeli.

Ezantsi kusesona sixhobo sokugquma singcono kwiingxowa zokulala ukuza kuthi ga ngoku. Izinto ezisezantsi zidla ngokuba (ngwevu, mhlophe) irhanisi phantsi okanye idada ezantsi (ukuthetha ngokubanzi, irhanisi lingcono kunedada phantsi). Ukusebenza kwayo kuxhomekeke kuhlobo kunye neloft yezantsi esetyenzisiweyo. .

Ngethuba lophando, sifumene ukuba abanye abasebenzisi abangayi kuqwalasela umgangatho basebenzisa i-drill yombane kunye ne-spiral bit ukudibanisa izikrufu zokhuni kwizixhobo zebhasi. Nangona iindleko zesixhobo ziphantsi, umgangatho wendibano awukwazi ukulawulwa ngenxa yesantya esiphezulu sombane wombane, okubangelwa yimveliso yenkunkuma. Ukuziphindezela kwabonakaliswa ngokukhawuleza: iintloko ze-screw zikhawuleza zigqwala (kuba i-groove coating yonakaliswe yi-screwdriver); impahla yabakhweli yasikwa ngeentloko ezijijwayo (kuba ezinye iintloko ezijijwayo zazingekahlali ngokupheleleyo kwaye zaziphezulu kunomsebenzi wokusebenzela); imicu yokuhombisa yesinyithi igxothwe Okanye iyawa (ezinye izikrufu ziqiniswe kakhulu kwaye unxibelelwano aluphumeleli); intambo yokubamba ikhululekile okanye imithombo ivulekile (olunye uxhulumaniso aluphumeleli). Zonke ezi zinto zifunyanwa ngabantu abadla ngokukhwela iibhasi namakhareji.

(2) Uhlobo lolawulo lwe-Braking torque

Ikwasisixhobo esingacimiyo ngokuzenzekelayo unikezelo lwamandla. I-voltage iphezulu, i-braking current inkulu, kwaye i-torque ye-braking nayo inkulu. Emva kokuba igiya yehlisiwe, itorque yendibano yokuphuma nayo inkulu, kwaye ngokuphambeneyo. Ingcamango yoyilo ye.olu hlobo lwe-screwdriver yombane kukusebenzisa i-transformer ye-step-down ukuseta iimpompo ezininzi kunye nokulungelelanisa i-voltage ukulungisa i-torque yendibano. Le mveliso isaveliswa ekhaya. Ezi zizathu zilandelayo zibonisa ukuba iyimodeli engasemva kwaye engafunekiyo.

①Kwi-voltage ethile, i-torque ye-braking ye-motor ayitshintshi. Kukho izizathu ezibini. Enye kukuba i-motor inyuka ngokunyuka kweqondo lokushisa. Ngaphantsi kwe-braking yexesha elifutshane ephindaphindiweyo, ukunyuka kwamaqondo okushisa okujikelezayo kutshintshile kukhulu, ngoko ke i-braking current ihluke kakhulu, kwaye i-torque ye-braking nayo yahlukile; okwesibini kukuba i-motor inyuka ngokunyuka kweqondo lokushisa. Yiyo i-torque ye-braking ye-motor commutator ehambelana nesikhundla se-rotor ngexesha lokunyathela. Xa ibhrashi iphakathi kwamacandelo amabini e-commutator, enye into ejikajikayo imfutshane-ijikelezwe yibrashi kwaye akukho torque yenziwayo. Ngokuchasene noko, xa kungekho candelo labahambisi lifutshane-lijikelezwe yibrashi, zonke izinto ezijikelezayo zisebenza ukuvelisa i-torque. Ngoko ke, kunokubonwa ukuba iiplati ezijikelezayo ze-motor, ezincinci impembelelo yeendawo ezahlukeneyo ze-rotor kwi-torque ye-braking ngexesha lokuqhawula. Ngelishwa, ii-screwdrivers zombane zihlala zisebenzisa imagnethi esisigxina ye-DC motors. I-rotor ayikwazi ukuba neendawo zokubeka ezininzi kwaye isebenzisa ii-blades ezininzi zokuhamba (iindawo zokubeka ezintathu kunye ne-blades ezintathu zazisetyenziswa kwiintsuku zokuqala, kwaye iindawo zokubeka ezihlanu kunye neencani ezintlanu zasetyenziswa kamva. Kule mihla, iindawo zokubeka ezisixhenxe kunye neeblade ezisixhenxe zisetyenziswa phesheya. , kukho iindawo zokubeka ezisixhenxe kunye neziqwenga ezilishumi elinesine zokunciphisa i-torque pulsation). Idityaniswe ne-10% yokunyamezela kwamandla ombane weeteksi zombane zombane, kunzima kakhulu ukulawula i-torque rhoqo ngale ndlela, oko kukuthi, ukuchaneka kokulawula i-torque kubi kakhulu.

②Ukuqhobosha rhoqo ayisosimo esiqhelekileyo sokusebenza semagnethi esisigxina yeenjini zeDC. Iya kubangela ukufudumeza okungaqhelekanga kwemoto kwaye inciphise ubomi bayo. Ngokukodwa ukuba umqhubi ngabom okanye engenzi ngabom wandisa ixesha lokuqhobosha, impembelelo iya kuba mbi kakhulu.③Ukuqhawula isitshixo samandla xa isiqhoboshi semoto siya kunciphisa kakhulu ubomi bokutshintsha. Ngenxa yokuba i-current inkulu ngexesha lokunyathela i-braking, amandla amagnetic agcinwe kwi-inductor ejikelezayo inkulu. Xa inqanyuliwe, la mandla akhululwa phakathi kwabafowunelwa ngendlela ye-arc. Phuma, ucime abafowunelwa, kwaye unyibilike kwiimeko ezinzima.

④Ekubeni i-motor ibaleka ngesantya esiphantsi kakhulu ngaphambi nje kokuba ibhuleki, ukusebenza kakuhle kolu hlobo lwesikrudrayiva sombane ngokuqhelekileyo kuphantsi. Olu hlobo lwesikrudrayiva sombane lungasetyenziselwa uhlobo oluncinci lwe-A, B, C kunye ne-E yokudibanisa. D uhlobo couplet kwi Mc》Intaba

Iipropati zoqhagamshelo nazo ziyafumaneka.

(3) I-screwdriver yombane elawulwayo ngoku

Sisixhobo esinqumla ngokuzenzekelayo unikezelo lwamandla. Ngokusekwe kubudlelwane obuhambelanayo phakathi kwetorque ye-electromagnetic yemoto kunye nemoto yangoku, indlela yokulawula isekwe ukulawula i-torque yendibano ye-screwdriver yombane ngokuseta ixabiso langoku lemoto. Olu hlobo lwesikrudrayiva sombane lwaluyeyona mveliso yakuqala eTshayina, kodwa phantse ayisaveliswa mva nje kuba umsebenzi wayo wolawulo uphantsi kakhulu. Abantu abanakuzibamba kodwa bayazibuza: Kutheni le ndlela yokulawula iluncedo kangaka kwizitshixo zetorque ezisisigxina? Le mveliso iye yaveliswa kwaye yasetyenziswa, kwaye ukuchaneka kokulawula i-torque kunokufikelela±5% FS; kutheni i-screwdrivers zombane ezisanda kuthathwa kumazwe angaphandle nazo zohlobo lwangoku lolawulo. Uphando lubonisa ukuba isitshixo silele kwinto yokuba emva kokucima kombane, umsebenzi wenkqubo yokujikeleza ye-screwdriver yombane iguqulwa ibe yi-torque eyongezelelweyo engalawulekiyo, ebangela umlinganiselo omkhulu. Oku kungenxa yokuba ukuze kuqinisekiswe ukusebenza kakuhle okuphezulu, umlinganiselo wesantya somnciphisi we-screwdriver yombane uncinci, kwaye ukuze kuqinisekiswe i-torque ethile yokuqinisa, amandla ombane ohambelanayo akanakuba mncinci kakhulu (emva kokuguqulwa, i-1500N·I-m esisigxina ye-torque wrench ifuna kuphela malunga ne-0.3W yamandla alinganisiweyo, ngelixa i-screwdriver yombane i-M4 idinga malunga ne-8W amandla alinganisiweyo ukwenza IN.·m torque). Ngoko ke, i-avareji yamandla ajikelezayo athwalwa ngumzuzu wendibano yeyunithi inkulu, ngoko ke i-torque eyongezelelweyo engalawulekiyo nayo inkulu.Isisombululo kukusebenzisa ngokukhawuleza i-braking echitha amandla kwi-motor emva kokuba i-torque ifikelele kwinqanaba kwaye inqunyulwe ukunikezelwa kwamandla. . Ngeli xesha, i-motor isebenza njenge-generator, iguqula amandla amaninzi e-kinetic yenkqubo ejikelezayo ibe amandla ombane kwaye isetyenziswe ekufudumeni kwe-resistor, ngaloo ndlela yenza ulawulo olungalawulekiyo. Ukulawula i-torque eyongezelelweyo kuphucula uluhlu lokulawula kunye nokulawula ukuchaneka. Enyanisweni, i-screwdrivers zombane ze-Daniker ezilawulwa ngoku (kubandakanya i-clutch echanekileyo yokhuseleko lwe-self-stop screwdrivers zombane ezikhankanywe kamva) yenza lo mlinganiso ukufezekisa iimpawu zokulawula indibano elungileyo. Olu phuculo lwe-screwdriver yombane oluphuculweyo lunoluhlu olubanzi lolawulo olukhawulezayo kunye nolawulo oluchanekileyo oluchanekileyo. Ilungele iimpawu zendibano ye-A, B, C, kunye nezikrufu ze-E ezineemfuno eziphezulu, kwaye ifanelekile kwizikrufu ezihambelana noMc.》Iimpawu zendibano yeMt D.

Uhlobo lwe-clutch yokhuseleko

Ngokuqhelekileyo inkqubo ye-clutch yokhuseleko ifakwe kwisiphelo sesantya esisezantsi setsheyini yokuhambisa i-screwdriver yombane. Xa itorque yothumelo (oko kukuthi itorque yendibano) ingaphezulu kwexabiso layo lokumisela, i-clutch iya kukhubeka. Kukho iintlobo ezininzi ze-clutches zokhuseleko, kubandakanywa ii-clutches zokukhuhla ezifanelekileyoscrewdrivers zombane(ezazisetyenziswa ngeentsuku zokuqala, kodwa ngoku zinqabile ukusetyenziswa ngenxa yokugqoka lula, ukushisa, kunye nokusebenza okungazinzanga), i-clutches yokhuseleko lwezinyo, i-clutches yokhuseleko lwebhola, kunye ne-roller-type-clutches. bamba. Ngenxa yeemfuno kunye nenkqubela phambili yoyilo lolwakhiwo, kukho iinguqulelo ezahlukeneyo ze-screwdrivers zombane (umzekelo, ezinye azibeki i-clutch kwi-shaft kodwa kwigiya yangaphakathi yeringi, kwaye sebenzisa i-torque yokusabela ukuphumeza umsebenzi we-clutch wokhuseleko) , kwaye zininzi kakhulu onokuzikhankanya. . Kodwa isalathiso sophuhliso jikelele yi-miniaturization, ukwenza lula, ukulungiswa kunye nokwandisa inani lamazinyo e-meshing (iibhola, ii-roller) ukunciphisa i-torque eyongezelelweyo, ukuphucula ukuchaneka kwendibano, ukwandisa ubomi be-clutch, kunye nokunciphisa ukungcangcazela kwindawo yoqhagamshelwano phakathi komsebenzi kunye nomsebenzi. intloko isixhobo. . Ezinye iimveliso ziza ngamaqhekeza angama-24, ngokuqinisekileyo aya kwandisa umsebenzi wokulungisa. Ezo zixhobo zinokwahlulwa ngokwezi ndidi zilandelayo ngokwemigaqo yazo, imisebenzi yazo kunye neempawu zazos

(1) Uhlobo lwe-clutch olunyanzelweyo

Sisixhobo sokucima amandla okuzenzekelayo. Uxinzelelo phakathi kwesiqingatha se-clutch esebenzayo kunye neqhutywayo luxinzelelo lwe-axial olwenziwa ngumqhubi kwi-screwdriver yombane. Ngoko ke, ukuba uxinzelelo lwe-axial olusetyenzisiweyo lukhulu, i-torque ye-clutch iya kuba nkulu, kunye ne-screw assembly torque nayo iya kuba nkulu. ngokubhidana. Kufuneka kucaciswe ngokukodwa ukuba xa uxinzelelo lwe-axial lungasuswanga emva kokukhubeka kwaye unikezelo lwamandla alunqunyulwa, i-clutch iya kubandakanyeka rhoqo kwaye ihambe kwakhona, okukhokelela kwimpembelelo kunye neempawu ezongezelelweyo zokuqinisa i-torque. Ngoko ke, umphumo wendibano uxhomekeke ngokupheleleyo kwizakhono zomqhubi, ngoko ke ifanelekile kuphela kwiimpawu zendibano ze-A, B, C, E ngaphandle kweemfuno ezichanekileyo. Nangona kunjalo, kuhlobo lwe-D kunye neempawu zendibano ye-F ye-Mt> Mc, nje ukuba umqhubi unolwazi olwaneleyo kunye noxanduva, olu hlobo lwesixhobo lukhetho olufanelekileyo.

(2) Uhlobo lwe-clutch ye-buffer ehlengahlengiswayo

Sisixhobo sokucima amandla okuzenzekelayo. Isakhiwo sisebenzisa uxinzelelo lwemithombo yoxinzelelo olulungelelaniswayo ukuze luthathe indawo yoxinzelelo lwe-axial olukhankanywe ngasentla olwenziwe ngumqhubi, ngoko ke i-torque eguquguqukayo inokufumaneka. Nangona kunjalo, ukuphinda-phinda kwetorque yayo kunye nokulungelelaniswa kubhetele kakhulu kunezo ze-clutch enyanzelekileyo, kwaye ayibangeli ukungcangcazela okunamandla kwe-axial yesixhobo xa ukhubeka. Ayigcini nje ukunciphisa ubunzima bomsebenzi womqhubi, kodwa iphinda inciphise umonakalo kwi-slot okanye i-slot ye-cross kunye nokugquma kwayo ngenxa ye-vibration yentloko ye-screwdriver. Ngoko ke, okoko nje umqhubi emisa isithuthi xa i-clutch ikhutshiwe kwaye inciphisa impembelelo ye-torque eyongezelelweyo ye-clutch, i-torque yendibano engaguqukiyo ekufutshane ne-torque yokukhubeka inokufumaneka. Ngoko ke, ingasetyenziselwa i-A, B, C, kunye ne-E-type ye-thread assembly kunye neemfuno ezithile zokuchaneka kwe-torque. Kufuneka kucaciswe ukuba ukuchaneka kwe-torque yokukhwela kunye ne-torque yendibano ayixhomekanga kuphela kwiiparamitha zoyilo lwesixhobo kodwa nakwizinga lokusebenza lomsebenzisi. Iimvavanyo zibonise ukuba ukuba isixhobo sigcinwe ngamabomu kwimeko ye-clutch ephindaphindiweyo ixesha elide, i-torque yendibano inokufikelela kumaxesha angama-2-3 kwi-torque yokukhubeka. Ngoko ke, umgangatho wokuhlanganisa uxhomekeke kakhulu kwisakhono somqhubi. Abaqhubi benqanaba eliphezulu banokuhlanganisa iimpawu zendibano ye-D ye-Mc>Mt, kwaye banokuthatha ithuba lokwahlula okuphindaphindiweyo.

Idityaniswe kunye nokunyuswa kwexesha elongezelelweyo ukudibanisa amajoyina aneempawu zohlobo lwe-F. Ngokuqinisekileyo, ukunxiba kwe-clutch kuya kukhawuleziswa kwaye ukusebenza kakuhle kwendibano kuya kuncitshiswa.

Olu hlobo lwe-screwdriver yombane lunokwahlulwa lube luhlobo lohlengahlengiso lwangaphakathi kunye nohlobo lohlengahlengiso lwangaphandle ngokwendlela yohlengahlengiso loxinzelelo lwentwasahlobo. Uhlobo lohlengahlengiso lwangaphakathi lulula kakhulu ekusebenzeni, kodwa kunzima ukuvula inxalenye yesigqubuthelo somatshini wokusebenza xa kulungiswa uxinzelelo lwasentwasahlobo, ngoko ngoku alufane lusetyenziswe. Nangona kunjalo, esi sakhiwo sisasetyenziswa ngokubanzi kwi-screwdrivers zombane eziveliswa ekhaya. I-nut yokulungiswa kwentwasahlobo yohlobo lohlengahlengiso lwangaphandle lungaphandle kwesigubungelo, kwaye umqhubi unokuyijika ngokulula ukutshintsha ingcinezelo yasentwasahlobo ukutshintsha i-torque ehambayo. Kwiminyaka yakutshanje, ii-screwdrivers zombane zemagnethi eziveliswe ekhaya ezisisigxina, ngakumbi ii-screwdrivers zombane eziveliswe ngobuninzi bebhetri, ngokubanzi zamkele olu hlobo.

Uhlobo lwe-clutch olunokulungiswa kombane

Sisixhobo esinqumla ngokuzenzekelayo unikezelo lwamandla. Ngokwesiseko se-clutch ye-buffer clutch echazwe ngasentla, izixhobo zokujonga indawo ezifana nokutshintsha komda kunye nokuguqulwa kweefoto zombane zeHolo zisetyenziselwa ukukhangela ukufuduka kwe-axial ye-clutch ngexesha lokukhubeka kwaye iyiguqule ibe yimiqondiso yombane, ibangela ukuba isekethe esebenzayo inqunyulwe. imoto. Ukubonelela ngoku, kwaye wenze i-braking edla amandla ngokukhawuleza ukuqinisekisa ukuba i-clutch ayivelisi i-torque eyongezelelweyo ebangelwa yimpembelelo ye-clutch ephindaphindiweyo, ukwenzela ukuba i-torque yendibano ilingane ngokuchanekileyo ne-torque yokukhubeka, kunye nokuphindaphinda kwe-torque yendibano ifikelela ± 3% ukuya ±5%. Ngoko ke, ifanelekile kwiimpawu zendibano ze-A, B, C, D (Mc> Mt), E kunye nezinye iintlobo zeentambo ezineemfuno ezichanekileyo ezichanekileyo. Kwimihla yangaphambili, ezi sekethe zokusebenza zingentla zazidla ngokusetyenziswa iisekethe ezilula zokudlulisa. Kutshanje, iisekethe zombane zombane zamkelwe. Le yokugqibela inexesha lokuphendula ngokukhawuleza kwaye akukho bafowunelwa, ngoko inokusebenza kakuhle kunye nokuthembeka okuphezulu.

Kwenziwa kanjanikhetha i-screwdriver yombane

Ngenxa yokwahluka kwezihlandlo zokusetyenziswa kunye nezixhobo zokusebenza, kugqitywe ukuba i-screwdrivers zombane kufuneka zibe neentlobo ezahlukeneyo zesakhiwo ukuhlangabezana neemfuno ezahlukeneyo. Le yinkinga yokukhetha kwinkqubo yophuhliso lwe-screwdrivers yombane ekufuneka isonjululwe. Ngokuchasene noko, kumsebenzisi othile, indlela yokuthenga ngengqiqo izixhobo zakhe zokuhlanganisa kwiindidi ezininzi ezahlukeneyo ze-screwdrivers zombane ngokwembono yokufumaneka, uqoqosho, uqingqo-mali, njl.njl., ngokusekelwe kwindawo yakhe yokusebenza kunye neempawu zamacandelo aza idityanisiwe, ifuna ukhetho.

Ukuqwalasela ubume kunye neempawu ze-workpiece, kunye nezihlandlo zokusetyenziswa komsebenzisi, i-screwdrivers zombane zohlobo lwebhetri zisetyenziswa ngokubanzi kwiindawo zendlu kunye nezoshishino ngaphandle kombane; kwi-screwdrivers zombane ezinamandla amakhulu kunye ne-torque enkulu, eziqulunqwe ngee-motor series, kwinani elikhulu le-Ukusebenzisa indawo ephakathi, sebenzisa i-screwdriver yombane ephantsi kunye nonikezelo lwamandla oluphakathi. Ukusetyenziswa okusasaziweyo, sebenzisa i-screwdriver yombane ephantsi-voltage eyedwa okanye "i-high-voltage" ye-screwdriver yombane. Ukukhetha imodeli kubaluleke kakhulu kuphando, ukuyila kunye nabavelisi. Ukukhetha imodeli enengqiqo kunokuhlangabezana neemfuno zabasebenzisi abahlukeneyo kunye neentlobo ezimbalwa zeemveliso, kunye nokufezekisa iinzuzo eziphezulu zoqoqosho kunye nezentlalo; Ngokuchasene noko, kubaluleke kakhulu kubasebenzisi ukuba bakhethe iintlobo ezahlukeneyo ze-screwdrivers zombane ngokwezihlandlo zabo zokusetyenziswa kunye neempawu zokuhlanganisa i-workpiece. Ukuthenga ngokungafanelekanga kuya kubangela ukuba utyalo-mali lungaphumeleli umphumo oyifunayo, okanye lude luchithe ngenxa yokuba alunakusetyenziswa kumacandelo alo. Kule njongo, akuyimfuneko kuphela ukuyila iimveliso ngokweempawu ezahlukeneyo zokuhlanganisa intambo, kodwa nokuqinisa ukuthandwa kolwazi lomsebenzisi kule ndawo.