Basic Magnet Design
An ƙera na'urar Magnabend azaman magnetin DC mai ƙarfi tare da iyakataccen zagayowar aiki.
Injin ya ƙunshi sassa 3 na asali:-
Jikin maganadisu wanda ke samar da tushe na injin kuma yana ƙunshe da na'urar lantarki-magnet.
Matsakaicin manne wanda ke ba da hanya don jujjuyawar maganadisu tsakanin sandunan sandunan maganadisu, kuma ta haka ne ke manne kayan aikin sheetmetal.
Lanƙwasawa katako wanda aka pivoted zuwa gaban gaban magnet jiki da kuma samar da hanyar da ake ji da karfi lankwasawa zuwa workpiece.
Samfurin 3-D:
A ƙasa akwai zane na 3-D wanda ke nuna ainihin tsarin sassa a cikin nau'in maganadisu na U:
Zagayen aiki
Manufar sake zagayowar aiki wani muhimmin al'amari ne na ƙirar lantarki.Idan ƙirar tana ba da ƙarin aikin sake zagayowar fiye da yadda ake buƙata to ba shi da kyau.Ƙarin sake zagayowar aiki a zahiri yana nufin cewa za a buƙaci ƙarin waya ta jan karfe (tare da farashi mai girma) da/ko kuma za a sami ƙarancin matsawa.
Lura: Magnet na sake zagayowar aiki mafi girma zai sami ƙarancin wutar lantarki wanda ke nufin zai yi amfani da ƙarancin kuzari don haka ya zama mai rahusa don aiki.Koyaya, saboda maganadisu yana kunne na ɗan gajeren lokaci to ana ɗaukar farashin makamashin aiki a matsayin ɗan ƙaramin mahimmanci.Don haka tsarin ƙira shine samun ƙarancin wutar lantarki kamar yadda za ku iya tserewa cikin sharuddan rashin yin zafi da iska na nada.(Wannan hanya ta gama gari ga mafi yawan ƙirar electromagnet).
An ƙera Magnabend don zagayowar ayyuka na ƙima na kusan 25%.
Yawanci yana ɗaukar daƙiƙa 2 ko 3 kawai don yin lanƙwasa.Maganar maganadisu za ta kasance a kashe don ƙarin daƙiƙa 8 zuwa 10 yayin da aka mayar da aikin aikin kuma an daidaita shi a shirye don lanƙwasawa na gaba.Idan an wuce aikin 25% na sake zagayowar to daga ƙarshe magnet ɗin zai yi zafi sosai kuma nauyin zafi zai yi tafiya.Magnet ɗin ba zai lalace ba amma dole ne a bar shi ya yi sanyi na kusan mintuna 30 kafin a sake amfani da shi.
Kwarewar aiki tare da injuna a cikin filin ta nuna cewa 25% sake zagayowar aiki ya isa sosai ga masu amfani na yau da kullun.A zahiri wasu masu amfani sun nemi nau'ikan nau'ikan wutar lantarki na zaɓi na na'ura waɗanda ke da ƙarin ƙarfi tare da ƙarancin sake zagayowar aiki.
Magnabend Clamping Force:
Ƙarfin Ƙarfin Ƙarfafawa:
A aikace wannan babban ƙarfin matsawa yana samuwa ne kawai lokacin da ba a buƙata (!), Wato lokacin lanƙwasa kayan aikin ƙarfe na bakin ciki.Lokacin lankwasa wadanda ba ferrous workpieces da karfi zai zama kasa kamar yadda aka nuna a cikin jadawali a sama, da kuma (dan m), shi ne kuma kasa lokacin lankwasa lokacin farin ciki karfe workpieces.Wannan saboda ƙarfin da ake buƙata don yin lanƙwasa mai kaifi ya fi wanda ake buƙata don lanƙwasa radius.Don haka abin da ke faruwa shine yayin da lanƙwasawa ke ci gaba da gefen gaba na clampbar yana ɗagawa kaɗan don haka ƙyale aikin aikin ya samar da radius.
Karamin tazarar iska wanda aka kafa yana haifar da ɗan asarar ƙarfi amma ƙarfin da ake buƙata don samar da lanƙwasa radius ya ragu sosai fiye da yadda yake da ƙarfin damƙar maganadisu.Don haka tabbataccen yanayi yana haifar da clampbar ba ya barin tafiya.
Abin da aka bayyana a sama shine yanayin lanƙwasa lokacin da injin ɗin ke kusa da iyakar kauri.Idan an gwada aikin aikin da ya fi kauri to ba shakka clampbar zai tashi.
Wannan zane yana nuna cewa idan gefen hanci na clampbar ya ɗan yi haske, maimakon kaifi, to za a rage tazarar iska don lankwasa mai kauri.
Tabbas wannan shine lamarin kuma Magnabend da aka yi da kyau zai sami maƙalli tare da radiused baki.(Hanyar radiyo kuma ba ta da saurin lalacewa idan aka kwatanta da kaifi mai kaifi).
Ƙarƙashin Yanayin Lanƙwasawa:
Idan an yi ƙoƙarin lanƙwasa akan wani kayan aiki mai kauri sosai to injin ɗin zai gaza lanƙwasa shi saboda maƙallan zai ɗagawa kawai.(Abin sa'a wannan baya faruwa ta hanya mai ban mamaki; clampbar kawai yana barin tafiya cikin nutsuwa).
Koyaya idan nauyin lanƙwasawa ya ɗan fi ƙarfin lanƙwasawa na maganadisu to gabaɗaya abin da zai faru shine lanƙwasawa zai ci gaba da faɗi kusan digiri 60 sannan clampbar zai fara zamewa da baya.A cikin wannan yanayin gazawar maganadisu na iya tsayayya da nauyin lanƙwasawa a kaikaice ta hanyar ƙirƙirar juzu'i tsakanin kayan aikin da gadon maganadisu.
Bambancin kauri tsakanin gazawar saboda dagawa da gazawa saboda zamewar gabaɗaya baya da yawa.
Rashin haɓakawa ya faru ne saboda aikin aikin da ke ba da damar gefen gaba na ƙugiya zuwa sama.Ƙarfin matsawa a gefen gaba na clampbar shine galibi abin da ke tsayayya da wannan.Matsawa a gefen baya yana da ɗan tasiri saboda yana kusa da inda ake murzawa.A haƙiƙa rabin jimlar ƙarfin da ke ƙin ɗagawa ne kawai.
A gefe guda kuma ana yin tsayayya da zamiya ta jimlar ƙulla ƙarfi amma ta hanyar gogayya don haka ainihin juriya ya dogara da ƙimar juriya tsakanin kayan aikin da saman maganadisu.
Don tsaftataccen ƙarfe da busasshen ƙarfe, ƙimar juzu'in na iya zama sama da 0.8 amma idan ana samun lubrication to yana iya zama ƙasa da 0.2.Yawanci zai kasance wani wuri a tsakanin irin wannan yanayin ƙarancin lanƙwasa yawanci saboda zamewa ne, amma yunƙurin ƙara juzu'i a saman maganadisu an gano bai dace ba.
Ƙarfin kauri:
Don jikin magnet mai nau'in E mai faɗin 98mm da zurfin 48mm kuma tare da na'urar juyawa ta ampere 3,800, cikakken ƙarfin lanƙwasawa shine 1.6mm.Wannan kauri ya shafi duka takardar karfe da takardar aluminum.Za a sami raguwar matsawa akan takardar aluminium amma yana buƙatar ƙarancin juzu'i don lanƙwasa shi don haka wannan yana ramawa ta yadda za a ba da ƙarfin ma'auni iri ɗaya na nau'ikan ƙarfe biyu.
Akwai buƙatu a kan iyawar lanƙwasawa da aka bayyana: Babban ɗayan shine ƙarfin da ake samu na ƙarfen takarda na iya bambanta sosai.Ƙarfin 1.6mm ya shafi karfe tare da yawan amfanin ƙasa har zuwa 250 MPa kuma zuwa aluminum tare da danniya mai girma har zuwa 140 MPa.
Ƙarfin kauri a cikin bakin karfe yana da kusan 1.0mm.Wannan ƙarfin yana da ƙasa da mahimmanci fiye da yawancin sauran karafa saboda bakin karfe yawanci ba maganadisu bane kuma duk da haka yana da madaidaicin yawan yawan amfanin ƙasa.
Wani abu kuma shine yanayin zafin maganadisu.Idan magnet ɗin ya ƙyale ya zama zafi to juriya na nada zai kasance mafi girma kuma wannan zai sa ya zana ƙarancin halin yanzu tare da ƙananan ampere-juyawa da ƙananan ƙarfi.(Wannan tasirin yawanci matsakaici ne kuma ba zai yuwu ya sa na'urar ta cika ƙayyadaddun ta ba).
A ƙarshe, ana iya yin mafi girman ƙarfin Magnabends idan sashin giciye na maganadisu ya fi girma.
Lokacin aikawa: Agusta-12-2022