Isikrufu sokuzicofa esingunxantathu sikwabizwa ngokuba yisikrufu sokutshixa esingunxantathu okanye isikrufu sokuzitshixa esingunxantathu. Kuthetha ukuba icandelo lomnqamlezo wenxalenye ephothiweyo ye-screw self-tapping is triangular, kunye nezinye iiparameters ziyafana nezo ze-screw mechanical. Yeyohlobo lwe-self-tapping screw.
Xa kuthelekiswa nezikrufu eziqhelekileyo zoomatshini, i-screws ye-self-tapping ye-triangular inokunciphisa ukuchasana kwinkqubo yokutshixa. Icofa i-workpiece ngamanqaku amathathu, kwaye kuya kuba nefuthe le-thermal kwinkqubo yokuvala, eya kuthintela isikrufu ukuba sikhululeke emva kokupholisa.
Unxantathu we-self-tapping screw uneenzuzo ezininzi kwisicelo esisebenzayo.
Inzuzo yokuqala kukuba ungazihlasela. Ujongene nobulukhuni beemveliso zabanye abathengi, ezifana neepleyiti zentsimbi, isikrufu se-engile yamazinyo amathathu sisebenzisa ipropathi yaso yokuzicofa ukuze singene ngcono kwiimveliso. Kwezinye iicastings ezifuna ukubotshelelwa ngezikrufu ezingakumbi, ezifana necavity yesihluzo samaza kanomathotholo, izikrufu zamazinyo ezinxantathu zingasetyenziselwa ukuzilungisa ngokukhawuleza.
Inzuzo yesibini kukuba xa kuthelekiswa nokusebenzisa izikhonkwane zoomatshini, amantongomane angagcinwa okanye imicu inokudityaniswa kwangaphambili kwiindawo ezitshixiweyo. Ayidingi kuxhotyiswa nge nut njengesikrufu somatshini. Iindleko zabathengi zigcinwa kakhulu, kwaye ukusebenza kakuhle okusisigxina kuphuculwe kakhulu.
Inzuzo yesithathu kukuba amazinyo angama-triangular asebenzisa iimpawu zomphezulu omncinci wokudibanisa, i-torque encinci yokutshixa kunye nomgaqo wamandla wokuphendula oveliswa yi-deformation yeplastiki yeqhekeza elitshixiweyo kwinkqubo yokutshixa ukuvelisa i-torque enkulu esele isetyenzisiwe, enokuthintela isikrufu ukuba sikhulule.
Ngenxa yezi zibonelelo zingentla, i-screws ye-self-tapping screws isetyenziswa ngokubanzi. Nangona kunjalo, ukuba izikrufu ziyatyibilika ngenxa yokusetyenziswa ngokungafanelekanga, ihlala iyintloko kubathengi. Ngenxa yokuba ixabiso leendawo ezitshixiweyo ngokubanzi lihlala liphezulu kunezikrufu. Umzekelo, ixabiso lomngxunya wesihluzo samaza kanomathotholo lidla ngokuba ngamawaka ukuya kumashumi amawaka amaxesha eskrufu. Ukuba umngxuma womgodi ulahliwe ngenxa yokutyibilika kwesikrufu, umthengi uhlala engamkelekanga. Kwangaxeshanye, i-screw slippage inokubangela iingozi ezimandundu njengokumisa umgca wemveliso wabathengi.
Ukutyibilika kwezikrufu ze-self-tapping ezinxantathu ikakhulu ngenxa yetorque ephezulu yokulungiswa. Nangona kunjalo, izizathu zokuphakama okuphezulu kunokuba i-screw tooth diameter incinci kakhulu, umngxuma onyukayo mkhulu kakhulu, ukufakelwa kwangempela kudlula i-torque emiselweyo (efana ne-voltage okanye i-air pressure iguquguquka kakhulu) okanye i-torque echazwe kuyilo lokuqala iphezulu kakhulu. Emva kokuba isikrufu sityibilika, siya kutyibilika ukuba esinye isikrufu senkcazelo efanayo sisetyenziselwa ukusijija. Ukuba i-screw slips ngexesha lokuqala lokukrazula, i-self-tapping screw ngokwayo inemisebenzi yokusika, eya kubangela ukuba umngxuma odibeneyo wande kwaye awukwazi ukutshixwa.
Emva kokuba i-self-tapping screw slips, enye indlela kukulungisa umngxuma otyibilikayo nge-thread sheath. Nangona kunjalo, ukungonakali kwale ndlela kukuba inkqubo inzima kwaye ixabiso liphezulu. Ukucaciswa kwe-screw esetyenziswe emva kokulungiswa kuya kutshintsha kwakhona, kwaye ukubonakala kuya kuhluke ngokucacileyo kwi-screw yasekuqaleni.
Okwangoku, eyona ndlela ikhawulezayo, eyona ndlela isebenzayo kunye neyonga iindleko kukutshixa ngokuthe ngqo kumngxunya wokutyibilika ngokusebenzisa izikrufu zomatshini ezinento enye, unyango olufanayo lomphezulu kunye neenkcukacha ezifanayo emva kokutyibilika, ezinokutshixa ngokufanelekileyo kumngxunya otyibilikayo.
Ngenxa yokuba isikrufu somatshini sinomphezulu omkhulu wokunxibelelana nomngxuma odityanisiweyo kunesikrufu sokuzicofa esingunxantathu, sinokuthwala i-torque ephezulu yokulungisa ngaphandle kokunciphisa itorque efunwa ngabathengi ekuqaleni. .
Emva kweminyaka emininzi yokusetyenziswa okusebenzayo, le ndlela inesiphumo esihle kakhulu, kwaye olu hlobo lwengxaki yokutyibilika lusonjululwe ngokwanelisayo. Abathengi banelisekile kakhulu ngesisombululo sethu.
Ixesha lokuposa: Dec-15-2022
