Kodi screwdrivers magetsi ndi mmene kusankha iwo

Palibe chitetezo clutch yamtundu uliwonse muelectric screwdriver, kotero kapangidwe ka makina ndi kosavuta, kukonza ndi kosavuta, ndipo mtengo wake ndi wotsika.

(1) Mtundu wowongolera wopanda torque

Ichi ndi chida chosazimitsa zokha. Kaya kuphatikiza kwa ulusi kumalizidwa kapena ayi kumatsimikiziridwa ndi woyendetsa. Wogwira ntchitoyo ayenera kuyang'anitsitsa momwe ntchitoyo ikuyendera. Ngakhale kuti ntchitoyi ndi yovuta komanso yogwira ntchito kwambiri, ubwino wa msonkhano sungakhale wotsimikizika. Wogwira ntchitoyo akatsimikizira kuti msonkhanowo watha, amadula magetsi kuti amalize ntchitoyi. Komabe, chifukwa cha kukhudzidwa kwa mphamvu yozungulira mphamvu pambuyo pa kutha kwa magetsi, mtanda wa mtanda kapena kagawo kaŵirikaŵiri umawonongeka; ngati wogwiritsa ntchitoyo sasamala, ndikosavuta kuti galimotoyo iwonongeke kwa nthawi yayitali, kuchepetsa moyo wa injini ya chida ndikusintha. Chida choterechi chinkagwiritsidwa ntchito pazitsulo zamatabwa ndi kubalalitsidwa kwakukulu m'masiku oyambirira, ndipo liwiro la spindle siliyenera kukhala lalitali. Posachedwapa, sichinagwiritsidwe ntchito.Zinthu zodzaza chikwama chogona

Ngakhale kuti zinthu zodzaza matumba ogona zimaphatikizapo pansi ndi thonje, kuchokera pakuwona kusungirako kutentha, pansi kumakhala ndi kutentha kwabwinoko, kumakhala kopepuka, kosavuta kupindika ndi kusunga, ndipo kumakhala kolimba kwambiri. Kotero apa ife makamaka timayambitsa pansi zipangizo.

Pansi akadali zida zabwino kwambiri zotchinjiriza zamatumba ogona mpaka pano. Zomwe zili pansi nthawi zambiri zimakhala (zotuwa, zoyera) pansi kapena bakha pansi (nthawi zambiri, tsekwe pansi ndi bwino kuposa bakha pansi). Kuchita kwake kumatengera mtundu ndi malo okwera omwe amagwiritsidwa ntchito. .

Pakafukufukuyu, tidapeza kuti ogwiritsa ntchito ena omwe salabadira zabwino amagwiritsa ntchito kubowola kwamagetsi ndi spiral bit kuti asonkhanitse zomangira zamatabwa pazowonjezera za basi. Ngakhale mtengo wa chidacho ndi wotsika, khalidwe la msonkhano silingathe kuyendetsedwa chifukwa cha kuthamanga kwambiri kwa kubowola kwamagetsi, zomwe zimapangitsa kuti ziwonongeke. Kubwezera kunawonekera mwamsanga: mitu yowonongeka mwamsanga inachita dzimbiri (chifukwa chophimba cha groove chinawonongeka ndi screwdriver); zovala za apaulendo zidadulidwa ndi zomangira mitu (chifukwa mitu ina inali isanakhazikike ndipo inali yayitali kuposa chogwirira ntchito); zingwe zokongoletsa zitsulo zimadumphira Kapena zimagwa (zingwe zomangika kwambiri ndipo kulumikizana kumalephera); chogwirizira ndi chotayirira kapena akasupe otseguka (malumikizidwe ena amalephera). Zonsezi zimachitikira anthu omwe nthawi zambiri amakwera mabasi ndi makochi.

(2) Mtundu wowongolera ma torque

Ndi chida chomwe sichimangodula magetsi. Mphamvu yamagetsi ndiyokwera kwambiri, mphamvu ya braking ndi yayikulu, komanso torque ya braking ndi yayikulu. Giya ikatsitsidwa, torque ya msonkhano imakhalanso yayikulu, mosemphanitsa. Lingaliro la mapangidwe apamtundu uwu wa screwdriver wamagetsi ndikugwiritsa ntchito chosinthira chotsitsa kuti chikhazikitse matepi ambiri ndikusintha magetsi kuti asinthe makulidwe a msonkhano. Izi zimapangidwabe kunyumba. Zifukwa zotsatirazi zikuwonetsa kuti ndi chitsanzo chakumbuyo komanso chosafunikira.

①Pa voteji inayake, torque ya braking ya mota sinthawi zonse. Pali zifukwa ziwiri. Chimodzi ndi chakuti mapiringidzo a injini amawonjezeka ndi kutentha. Pansi pa kubwereketsa kwakanthawi kochepa, kutentha kwa kutentha kwa mphepo kumasintha kwakukulu, kotero kuti braking panopa ndi yosiyana kwambiri, ndipo torque ya braking imakhalanso yosiyana; chachiwiri ndi chakuti mapiringidzo a galimoto amawonjezeka ndi kutentha. Ndi ma braking torque ya commutator motor yomwe imagwirizana ndi malo a rotor panthawi ya braking. Burashi ikakhala pakati pa magawo awiri a commutator, chinthu chimodzi chokhotakhota chimafupikitsidwa ndi burashi ndipo palibe torque yomwe imapangidwa. M'malo mwake, ngati palibe gawo la commutator lomwe lafupikitsidwa ndi burashi, zinthu zonse zokhotakhota zimagwira ntchito kupanga torque. Chifukwa chake, zitha kuwoneka kuti momwe ma commutator amachulukira amotor amacheperako, amakhudzanso magawo osiyanasiyana a rotor pamakokedwe a braking panthawi yoboola. Tsoka ilo, ma screwdrivers amagetsi nthawi zambiri amagwiritsa ntchito maginito okhazikika a DC micro motors. Rotor sangakhale ndi mipata yambiri ndipo amagwiritsa ntchito masamba ambiri oyendera (mipata itatu ndi masamba atatu adagwiritsidwa ntchito m'masiku oyambilira, ndipo mipata isanu ndi masamba asanu adagwiritsidwa ntchito pambuyo pake. Masiku ano, mipata isanu ndi iwiri ndi masamba asanu ndi awiri amagwiritsidwa ntchito kunja. mipata isanu ndi iwiri ndi zidutswa khumi ndi zinayi kuti muchepetse kugunda kwa torque). Kuphatikizidwa ndi 10% voteji kulolerana kwa ma taxi amagetsi aku mafakitale, ndizovuta kwambiri kuwongolera torque mosalekeza ndi njira iyi, ndiye kuti, kuwongolera kwa torque ndikotsika kwambiri.

②Mabuleki pafupipafupi si momwe amagwirira ntchito maginito okhazikika a DC micro motors. Zimayambitsa kutentha kwa injini ndikufupikitsa moyo wake. Makamaka ngati woyendetsa galimotoyo mwadala kapena mosadziwa atalikitsa nthawi yoboola mabuleki, zotsatira zake zimakhala zazikulu.③Kuchotsa cholumikizira chamagetsi pomwe mota ikuchita braking kumafupikitsa kwambiri moyo wosinthira. Chifukwa chapano ndi yayikulu panthawi ya braking, mphamvu yamaginito yomwe imasungidwa mu inductor yolowera ndi yayikulu. Ikachotsedwa, mphamvuyi imatulutsidwa pakati pa zolumikizirana ngati arc. Tulukani, chotsani zolumikizanazo, ndi kuzisungunula pazovuta kwambiri.

④Popeza galimoto imayenda pa liwiro lotsika kwambiri itangotsala pang'ono kugunda, mphamvu ya mtundu uwu wa screwdriver yamagetsi nthawi zambiri imakhala yochepa. Mtundu woterewu wa screwdriver wamagetsi ukhoza kugwiritsidwa ntchito pamitundu yolumikizana yochepera A, B, C ndi E. D lembani couplet mu Mc》Mt

Zida zolumikizira ziliponso.

(3) Pakali pano kulamulidwa screwdriver magetsi

Ndi chida chomwe chimangodula magetsi. Kutengera ubale womwe ulipo pakati pa ma torque amagetsi amagetsi ndi ma motor pano, njira yowongolera imakhazikitsidwa kuti ilamulire torque yolumikizira ya screwdriver yamagetsi poyika mtengo wamoto pano. Mtundu uwu wa screwdriver magetsi unali waukulu oyambirira mankhwala ku China, koma pafupifupi salinso opangidwa posachedwapa chifukwa ulamuliro ntchito yake ndi osauka kwambiri. Anthu sangachitire mwina koma kudabwa: Chifukwa chiyani njira yowongolera iyi ndiyothandiza kwambiri pama wrench okhazikika? Izi zapangidwa ndikugwiritsidwa ntchito, ndipo kulondola kwa torque kumatha kufikira±5% FS; chifukwa chiyani ma screwdriver amagetsi omwe atumizidwa posachedwa nawonso ali amtundu wowongolera pano. Kafukufuku akuwonetsa kuti chinsinsi chagona pa mfundo yakuti mphamvu ikatha, ntchito ya makina ozungulira a screwdriver's rotary system imasinthidwa kukhala torque yowonjezera yosalamulirika, yomwe imakhala ndi gawo lalikulu. Izi ndichifukwa choti pofuna kuonetsetsa kuti magwiridwe antchito apamwamba, liwiro la chotsitsa cha screwdriver lamagetsi ndi laling'ono, ndipo pofuna kutsimikizira torque inayake yolimba, mphamvu yamagetsi yachibale singakhale yaying'ono kwambiri (pambuyo pa kutembenuka, 1500N).·m wrench ya torque yokhazikika imangofunika mphamvu ya 0.3W yokha, pomwe screwdriver yamagetsi ya M4 imafuna mphamvu pafupifupi 8W kuti ipange IN.·m torque). Choncho, mphamvu yozungulira yomwe imayendetsedwa ndi nthawi ya msonkhano wa unit ndi yaikulu, kotero kuti torque yowonjezera yosalamulirika imakhalanso yaikulu. Njira yothetsera vutoli ndikugwiritsanso ntchito mwamsanga mabuleki owononga mphamvu ku galimoto pambuyo pa torque itafika pamtunda ndikudula mphamvu. . Panthawiyi, galimotoyo imagwira ntchito ngati jenereta, kutembenuza mphamvu zambiri za kinetic za dongosolo la rotary kukhala mphamvu yamagetsi ndi kutenthedwa mu kutentha kwa resistor, motero kumapangitsa kulamulira kukhala kosalamulirika. Kuwongolera torque yowonjezera kumathandizira kuwongolera ndikuwongolera kulondola. M'malo mwake, ma screwdriver amagetsi oyendetsedwa ndi Daniker (kuphatikiza zowotchera zodzitchinjiriza zodziyimira pawokha zoyimitsa magetsi za Daniker zomwe tazitchula pambuyo pake) zimatenga izi kuti zikwaniritse mawonekedwe abwino owongolera msonkhano. Izi zowongolera pakali pano zowongolera magetsi zili ndi mawonekedwe owongolera nthawi yomweyo komanso kuwongolera mwachangu kwambiri. Ndiwoyenera kuphatikizira zomangira za A, B, C, ndi E zokhala ndi zofunikira zapamwamba, komanso ndizoyenera zomangira zomwe zimagwirizana ndi Mc.》Makhalidwe a msonkhano wa Mt D.

Mtundu wa chitetezo clutch

Nthawi zambiri makina ogwiritsira ntchito chitetezo amaikidwa kumapeto kwa liwiro lotsika la tcheni chotumizira ma screwdriver. Pamene torque yotumizira (mwachitsanzo torque) iposa mtengo wake, clutch idzayenda. Pali mitundu yambiri yazitsulo zotetezera, kuphatikizapo zokokerana zoyenerascrewdrivers magetsi(omwe ankagwiritsidwa ntchito m'masiku oyambirira, koma tsopano sagwiritsidwa ntchito kawirikawiri chifukwa cha kuvala kosavuta, kutentha, ndi ntchito yosakhazikika), zingwe zotetezera zamtundu wa dzino, zotetezera zamtundu wa mpira, ndi zotetezera zamtundu wa roller. gwira. Chifukwa cha zosowa ndi kupita patsogolo kwa mapangidwe apangidwe, pali mitundu yosiyanasiyana ya ma screwdrivers enieni amagetsi (mwachitsanzo, ena samayika zowawa pa shaft koma pa giya yamkati ya mphete, ndikugwiritsa ntchito torque kuti akwaniritse ntchito yoteteza chitetezo) , ndipo pali zambiri zoti tinene. . Koma njira yachitukuko ndi miniaturization, kuphweka, kukonzanso ndi kuonjezera chiwerengero cha mano a meshing (mipira, zodzigudubuza) kuti muchepetse torque yowonjezera, kukonza kulondola kwa msonkhano, kuonjezera moyo wa clutch, ndi kuchepetsa kugwedezeka pa malo olumikizana pakati pa ogwiritsira ntchito ndi ntchito. chida mutu. . Zogulitsa zina zimabwera mu zidutswa za 24, zomwe zidzawonjezera ntchito yokonza. Zida zoterezi zikhoza kugawidwa m'magulu otsatirawa malinga ndi mfundo zawo, ntchito zawo, ndi makhalidwe awos

(1) Mtundu wa clutch wokakamizidwa

Ndi chida chosadzipangira chokha chozimitsa mphamvu. Kupanikizika pakati pa halves yogwira ndi yoyendetsedwa ndi clutch ndi kuthamanga kwa axial komwe wogwiritsa ntchito pa screwdriver yamagetsi. Chifukwa chake, ngati kuthamanga kwa axial komwe kumagwiritsidwa ntchito kuli kwakukulu, torque yokhotakhota ya clutch idzakhala yayikulu, ndipo torque ya screw assembly idzakhalanso yayikulu. komanso mbali inayi. Ziyenera kunenedwa makamaka kuti pamene kuthamanga kwa axial sikuchotsedwa pambuyo pa kugwedezeka ndipo magetsi sanadulidwe, clutch idzagwira ntchito nthawi ndi nthawi ndikubwereranso, zomwe zimapangitsa kuti zikhale zovuta komanso zowonjezereka zowonjezereka. Chifukwa chake, zotsatira za msonkhano zimatengera luso la wogwiritsa ntchito, chifukwa chake zimangoyenera mawonekedwe amtundu wa A, B, C, E popanda zofunikira zenizeni. Komabe, pamtundu wa D-mtundu ndi F-mtundu wa msonkhano wa Mt> Mc, bola ngati wogwiritsa ntchitoyo ali ndi chidziwitso chokwanira komanso udindo, chida chamtunduwu ndichosankha choyenera.

(2) Mtundu wosinthika wa buffer clutch

Ndi chida chosadzipangira chokha chozimitsa mphamvu. Kapangidwe kake kamagwiritsa ntchito kukakamiza kwa kasupe wosinthika wosinthika kuti m'malo mwa axial pressure yomwe yatchulidwa pamwambapa yoperekedwa ndi wogwiritsa ntchito, kuti torque yosinthika itha kupezeka. Komabe, kugwedezeka kwake kwa torque kubwereza ndi kusinthika kwake ndizabwinoko kuposa zomangira zokakamiza, ndipo sizimayambitsa kugwedezeka kwamphamvu kwa axial kwa chida popunthwa. Sikuti amachepetsa mphamvu ya ntchito ya woyendetsa, komanso amachepetsa kuwonongeka kwa kagawo kapena kagawo kakang'ono ndi zokutira zake chifukwa cha kugwedezeka kwa mutu wa screwdriver. Chifukwa chake, bola ngati woyendetsa ayimitsa galimoto pomwe cholumikizira chikugwedezeka ndikuchepetsa kukhudzidwa kwamphamvu yowonjezereka ya clutch, torque yokhazikika yokhazikika yomwe ili pafupi ndi torque yodutsa imatha kupezeka. Chifukwa chake, itha kugwiritsidwa ntchito pagulu la A, B, C, ndi E-mtundu wa ulusi wokhala ndi zofunikira zina zolondola za torque. Ziyenera kunenedwa kuti kulondola kwa torque yodutsa ndi torque ya msonkhano kumadalira osati pamapangidwe a chipangizocho komanso pa mlingo wa opareshoni. Mayesero awonetsa kuti ngati chidacho chimasungidwa mwadala mobwerezabwereza kwa nthawi yayitali, torque ya msonkhano imatha kufika 2-3 nthawi yodutsa. Choncho, ubwino wa msonkhano umadalira kwambiri luso la wogwiritsa ntchito. Ogwira ntchito zapamwamba amathanso kusonkhanitsa zida zamtundu wa D za Mc> Mt, ndipo amathanso kutenga mwayi wopatukana mobwerezabwereza.

Kuphatikizika ndi zowonjezera mphindi zowonjezera kuti asonkhanitse zolumikizana ndi mtundu wa F. Zoonadi, kuvala kwa clutch kudzafulumizitsa ndipo ntchito ya msonkhano idzachepetsedwa.

Mtundu uwu wa screwdriver magetsi akhoza kugawidwa mu mtundu kusintha mkati ndi kunja kusintha mtundu malinga ndi kusintha njira ya kuthamanga masika. Mtundu wosinthika wamkati ndi wosavuta kwenikweni, koma ndizovuta kutsegula gawo la chivundikiro cha makina ogwirira ntchito pamene mukukonzekera kupanikizika kwa masika, kotero tsopano sagwiritsidwa ntchito kawirikawiri. Komabe, kamangidwe kameneka kakugwiritsidwabe ntchito kwambiri m'ma screwdrivers amagetsi amtundu umodzi. Nati yosinthira kasupe yamtundu wakusintha kwakunja ili kunja kwa chivundikiro, ndipo woyendetsayo amatha kuyitembenuza mosavuta kuti asinthe kuthamanga kwa masika kuti asinthe torque yodutsa. M'zaka zaposachedwa, zomangira zopangira maginito zamagetsi zokhazikika, makamaka ma screwdriver amagetsi opangidwa ndi batire, nthawi zambiri atengera mtundu uwu.

Mtundu wosinthika wa clutch wozimitsa

Ndi chida chomwe chimangodula magetsi. Pamaziko a clutch yosinthika yomwe yatchulidwa pamwambapa, zowunikira malo monga masiwichi amalire ndi matembenuzidwe a Photoelectric Hall amagwiritsidwa ntchito kuti azindikire kusuntha kwa axial kwa clutch panthawi yopunduka ndikuisintha kukhala ma siginecha amagetsi, ndikupangitsa kuti dera logwira ntchito lidulidwe. galimoto. Perekani pakali pano, ndikuchita mabuleki owononga mphamvu mwachangu kuonetsetsa kuti clutch sipanga torque yowonjezera chifukwa cha kukhudzidwa kobwerezabwereza, kuti torque ya msonkhano ikhale yofanana ndi torque yodutsa, ndipo kubwereza kwa torque ya msonkhano kumafika ± 3% mpaka ± 5%. Choncho, ndi oyenera msonkhano makhalidwe A, B, C, D (Mc> Mt), E ndi mitundu ina ya ulusi ndi zofunika mkulu mwatsatanetsatane. M'masiku oyambirira, mabwalo omwe ali pamwambawa ankagwiritsa ntchito mabwalo osavuta. Posachedwapa, mabwalo amagetsi amagetsi atengedwa. Yotsirizirayi imakhala ndi nthawi yoyankha mofulumira ndipo palibe olankhulana, choncho imakhala ndi ntchito yabwino komanso yodalirika kwambiri.

Momwe mungachitiresankhani screwdriver yamagetsi

Chifukwa cha kusiyanasiyana kwa nthawi zogwiritsiridwa ntchito ndi zida zogwirira ntchito, asankha kuti ma screwdrivers amagetsi azikhala ndi mitundu yosiyanasiyana kuti akwaniritse zosowa zosiyanasiyana. Ili ndilo vuto losankhira pakupanga ma screwdrivers amagetsi omwe ayenera kuthetsedwa. M'malo mwake, kwa wogwiritsa ntchito, momwe angagulire zida zake zosonkhana kuchokera kumitundu yambiri yosiyanasiyana yamagetsi opangira magetsi kuchokera kumawonedwe a kupezeka, chuma, kulingalira, ndi zina zotero, kutengera malo ake antchito ndi makhalidwe a zigawo zomwe ziyenera kukhala. kusonkhanitsa, kumafuna kusankha.

Poganizira mawonekedwe ndi mawonekedwe a workpiece, komanso nthawi zomwe wogwiritsa ntchito amagwiritsa ntchito, ma screwdriver amagetsi amtundu wa batri nthawi zambiri amagwiritsidwa ntchito m'malo am'nyumba ndi mafakitale opanda magetsi; kwa screwdrivers magetsi ndi mphamvu yokulirapo ndi makokedwe okulirapo, amene amapangidwa ndi ma motors angapo, kwa chiwerengero chachikulu cha Ntchito yapakati, gwiritsani ntchito screwdriver yamagetsi yotsika kwambiri yokhala ndi mphamvu yapakati. Kuti mugwiritse ntchito momwazika, gwiritsani ntchito screwdriver yamagetsi yamagetsi yamagetsi ya "high-voltage" yamagetsi. Kusankha kwachitsanzo ndikofunikira kwambiri pakufufuza, kupanga ndi opanga. Kusankha koyenera kwachitsanzo kungakwaniritse zosowa za ogwiritsa ntchito osiyanasiyana omwe ali ndi mitundu yochepa ya zinthu, ndikupeza phindu lalikulu lazachuma ndi chikhalidwe; M'malo mwake, ndikofunikira kuti ogwiritsa ntchito asankhe mitundu yosiyanasiyana ya ma screwdrivers amagetsi malinga ndi nthawi yawo yogwiritsira ntchito komanso mawonekedwe a msonkhano wa workpiece. Kugula kosayenera kumapangitsa kuti ndalamazo zisakwaniritse zomwe mukufuna, kapena kuwononga chifukwa sizingagwiritsidwe ntchito pazokha. Kuti izi zitheke, sikofunikira kokha kupanga zinthu molingana ndi mawonekedwe osiyanasiyana a ulusi, komanso kulimbikitsa kutchuka kwa chidziwitso cha ogwiritsa ntchito m'derali.