Njalo nje kwenzeka intuthuko engazelelwe futhi ebalulekile emhlabeni wamathuluzi, futhi eminyakeni embalwa edlule kwakungesinye salezo zikhathi. Ibizwa nge-brushless motor technology, futhi ithembisa ukuthuthukisa ngokushesha ukusebenza kwamathuluzi angenazintambo kuwo wonke amabhodi. Bonke abakhiqizi bamathuluzi baletha amathuluzi angenabhulashi ukuze bawamakethe njengamanje, futhi nakuba amathuluzi amaningi angenazintambo emashalofini esitolo engakabhulashi okwamanje, ubuchwepheshe obusha kufanele bufunwe. Ukuze uqonde ukuthi kungani, udinga ukuqonda ukuthi yinii-brushlessimayelana nomongo wamamotho kagesi. Ungabona izinhlobo ezimbili zamamotho ngezansi, avulwe kancane ukuze abonakale ngesikhathi sokuhlola ithuluzi lami.

I-Makita drill engakwesokunxele inamabhulashi endabuko, kanti i-Milwaukee kwesokudla ayinamabhulashi. Bonke ubunkimbinkimbi bemishini bedizayini ebhulashiwe buchezukiswa ubulula bemishini bokujikeleza kwangaphakathi.

Ngokwesiko, izinjini zamathuluzi amandla zihlanganisa amabhulokhi amancane, alayishwe intwasahlobo ekhabhoni efihlwe ngaphakathi. Lawa mabhuloki abizwa ngokuthi amabhulashi (nakuba engafani nhlobo “nebhulashi” futhi engenawo ama-bristles) futhi acindezela engxenyeni ejikelezayo yenjini, ehambisa ugesi kuyo njengoba ijika, kuyilapho isiza ekwakheni inkambu kagesi ejikelezayo. Yile nkambu ejikelezayo ngaphakathi kwenjini eyenza ijikeleze, futhi amabhulashi abe yingxenye ebalulekile yokwenza lokhu kwenzeke isikhathi esingaphezu kwekhulu leminyaka. Kodwa njengoba esebenziseke, amabhulashi abeka imikhawulo emibili emikhulu. Ziyaguga futhi zidala ukungqubuzana.

Njengoba amabhulashi enzelwe ukuhlikihla ezithweni zangaphakathi ezijikelezayo, aguga ngokuhamba kwesikhathi. Kunjalo nje, futhi uma amabhulashi engashintshwa ngesikhathi, noma iyiphi injini yamathuluzi izokonakala ngokuqhubeka nokusetshenziswa. Enye inkinga ngamabhulashi amandla awamoshayo. Ukuhlikihla kusho ukungqubuzana kanye nenhlansi, futhi lokhu kuhumusha emsebenzini omncane owenziwe ekushajweni kwebhethri ngakunye, konke kuyalingana.

Amathuluzi angenabhulashiSusa kokubili inkinga yokuguga kanye nenkinga yokungqubuzana, futhi lokhu bakwenza ngomklamo olula kakhulu kunamamotho amadala, anesitayela sebhulashi. Izinhlobo ezimbili zama-drill zikhombisa ngapha nangapha ngaphezulu zibonisa umehluko, noma ungazi lutho ngamamotho uyawubona umehluko.

Yini engaba lula kunalokhu? Ingxenye yangaphakathi ye-drill engenantambo ene-brushless motor ibonisa ukuthi le ndlela ilula kangakanani. Impilo ende yokusebenza kanye nokungqubuzana okuncane kwangaphakathi yizona zizathu ezithi ama-brushless power Tool motors ahlale lapha.

Esikhundleni sesistimu yamabhulashi, iziphethu nezinye izingxenye ezenza ama-motor kagesi e-DC ajikeleze, amathuluzi angama-brushless asebenzisa i-electronic circuitry ukufeza into efanayo ngezingxenye ezihambayo ezimbalwa kakhulu. Imiphumela ingezinye izimangalo ezinde kakhulu ezivela kubakhiqizi zempilo ende yamathuluzi kanye nomsebenzi omningi owenziwa ngenkokhiso ngayinye. Izinjini zamathuluzi angenabhulashi kufanele zihlale okungenani isikhathi eside ngo-1000% kunezinjini zesitayela sebhulashi ngaphambi kokuguga, futhi kufanele zilethe u-50% womsebenzi owengeziwe ephaketheni lebhethri elinikeziwe ngaphambi kokuba kudingeke ukushaja. Kodwa kulula ukwenza izimangalo, yingakho nginqume ukuzihlolela iqiniso ngokwami.

Ukuvula lokhu ku-DEWALT brushless drill kubonisa injini elula yamathuluzi wamandla angenalutho. I-circuitry enezintambo eziphuma kuyo ithatha indawo yamabhulashi ayimishini neziphethu.

Ukuhlolaithuluzi brushlessisivinini nokubekezela, ngifake i-Milwaukee FUEL 2604 i-brushless drill engu-18 volt ngohlobo olufanayo lwe-9/16” drill bit ngifake ekuzishayeleni okubili okusha, okuqhathanisekayo kwesitayela sebhulashi: i-DeWALT DCD989 engu-20 volt kanye ne-18 volt Makita BHP454. Womathathu amathuluzi ayeshaje ngokugcwele amabhethri angu-3.0 amp-amahora ekuqaleni kokuhlolwa ngakunye. Ngilinganise ukuthi zingaki izimbobo ezijulile ezingamayintshi angu-10 engingazibhoboza ekugcineni kwezingodo zemephu eqinile ngokushajwa okukodwa, nokuthi kuthathe isikhathi esingakanani ukubhoboza lezi zimbobo. Ngiphinde lokhu kuhlolwa izikhathi eziningana, ngilinganisela izinombolo zokukhiqiza nesivinini ukuze ngibe nokunemba. Iphuzu elibalulekile: I-Milwaukee brushless FUEL drilled isebenze ngo-40% isikhathi eside kunokuncintisana okuhle kakhulu kokubhoboza okubhulashwayo kusayizi webhethri ofanayo, kanye no-22% ngokushesha kunemodeli elandelayo ehamba phambili. Ukuze uthole ukubuka okunemininingwane eminingi umehluko wangaphakathi wobuchwepheshe phakathi kwebhulashi ngokumelene ne-brushless, kanye nokubona kahle ukuthi zonke izimbobo ezintathu ziqhathaniswa kanjani.

Izinzuzo zokusebenza ezilethwa amathuluzi angenalutho ziza ngokunciphisa inani lamandla alahlekile ngendlela yokushisa, nokuguqula la mandla abe umsebenzi. Ngaphandle komehluko olinganisekayo wejubane nokubekezela, ungakwazi futhi ukuzwa umehluko esandleni sakho ngenkathi usebenzisa ama-drill ngaphansi komthwalo. Ngenkathi ukushisa okuningi bekuqhuma kuphuma izimbobo zokuzibhoboza kwesitayela sebhulashi ngenkathi kubholwa, iMilwaukee ibibanda ngokuphawulekayo - njengoba ubungalindela.