IiShafts ezisezantsi zeeValve zeBhola eziZinzileyo: Amava aSebenzayo kunye neengcebiso malunga neNgxaki yokuPhambuka kweSakhiwo

I-shaft esezantsi yevalvu yebhola esisigxina idla ngokuba yinto elula ukuyihoya kodwa ebiza kakhulu. Nokuba i-ball core ijikeleza kakuhle kwaye nokuba i-axis itshintshiwe okanye ayitshintshi, kudla ngokuxhomekeka ekubeni ubungakanani kunye ne-center datum yale shaft isezantsi ilawulwa na kwizigaba zokwenziwa kunye nokuhlanganiswa.

Sijongene neengxaki ezininzi ezifanayo, umthengi onesakhiwo se-DN500 Class 600, ukuvulwa nokuvalwa kwebala kukho imvakalelo ecacileyo yokukhungatheka. Ekuqaleni kwakucingelwa ukuba i-actuator okanye ibhola ayiqhelekanga, yachithwa kuphela kwafunyaniswa ukuba inyathelo lokubeka ishaft esezantsi likhulu kakhulu, indawo yokuhlala yesihlalo nayo idlule ixabiso loyilo, nto leyo ebangele ukuba yonke indawo yokubaleka yebhola ifuduke.

Uyilo lwesakhiwo somngxuma osezantsi, kuyacetyiswa ukuba kusetyenziswe indawo yokubeka inyathelo, kwaye kwangaxeshanye, kufuneka kucace ukuba ekugqibeleni kubekwe igxalaba okanye kubekwe inyathelo elisezantsi. Ukuba le nkcukacha ayiphawulwanga ngokucacileyo kumzobo, kuya kuba lula ukufaka engalunganga xa uxhomekeke kwisigwebo sobungqina kwindibano yamva. Xa sijongana nale cala, ngokubanzi siya kuthatha i-axis yebhola njengembindi ukuze simise umgca wesalathiso semingxuma ephezulu nesezantsi yebheri, size emva koko silungise isakhiwo sokubeka ngokwesakhiwo somngxuma ophezulu nosezantsi.

Itekhnoloji yokucubungula, umatshini wokucubungula orhabaxa we-forgings kufuneka uthambe emva kokucubungula, uze emva koko uguqulelo oludibeneyo lwe-clamping kuzo zonke iindawo eziphambili. Sihlala silawula ukuqhutywa kwenyathelo ngaphakathi kwe-0.03, i-coaxiality ≤ 0.015. Ezinye izakhiwo ezityibilikayo ziya kwenza ukugaya okanye i-nitriding, ingakumbi umthengi ufuna ukungqubana okuncinci okanye ukusebenza ixesha elide kweprojekthi.

Nangona le nxalenye ingenkulu, xa ukuphambuka okuphakathi kuqokelelene, kuya kuchaphazela ukuzinza kwesakhiwo sonke sokutywina, ingakumbi ukuba isihlalo sebhola sibandakanyeka ngokungangqalanga okanye isakhiwo somda sithintelwe. Sicebisa ukuba ulwalathiso lokudibana luphawulwe ngokucacileyo kwimizobo, okanye ukuba umzobo wesakhiwo siphela unikwe ngaphambi kokuhlanganiswa, ukuze sikwazi ukwenza ukulinganisa ukuphazamiseka kwangaphambili ukuthintela ukuphinda kusetyenzwe kwakhona.