1. Ƙananan juriya na ruwa.
2. Ƙarfin waje da ake buƙata don buɗewa da rufewa kadan ne.
3. Hanyar kwararar matsakaici ba a ɗaure ba.
4. Lokacin da aka buɗe cikakke, lalatawar murfin rufewa ta wurin aiki yana da ƙasa da na bawul ɗin tsayawa.
5. Kwatankwacin siffar yana da sauƙi, kuma fasahar simintin yana da kyau.
Rashin lahani na ƙofar bawul
1. Girman gaba ɗaya da tsayin buɗewa suna da girma.Kayan aiki yana buƙatar babban sarari.
2. A cikin aiwatar da buɗewa da rufewa, akwai rikice-rikice na dangi tsakanin wuraren rufewa, wanda a taƙaice yana haifar da fashewa.
3. Ƙofar bawul yawanci suna da saman rufewa guda biyu, wanda ke ƙara wasu matsalolin sarrafawa, niƙa da gyarawa.
Nau'in bawuloli na kofa
1. Ana iya raba shi bisa ga shirin rago
1) Bawul ɗin ƙofar layi ɗaya: filin rufewa yana layi ɗaya da layin tushe na tsaye, wato, saman hatimin biyu suna layi ɗaya da juna.
Daga cikin madaidaitan bawul ɗin ƙofar kofa, tsarawa tare da tuƙi ya fi kowa.Akwai tuƙi mai gefe biyu a gindin bawuloli biyu na kofa.Irin wannan bawul ɗin ƙofar ya dace da ƙananan matsa lamba matsakaici da ƙananan diamita (dn40-300mm).Haka kuma akwai maɓuɓɓugan ruwa a tsakanin raguna biyu, waɗanda za su iya yin ƙarfi kafin a ɗaure su, wanda zai dace da hatimin ragon.
2) Bawul ɗin ƙofa mai wutsiya: farfajiyar hatimi ta samar da kusurwa tare da layin tushe na tsaye, wato, saman rufin biyun suna samar da bawul ɗin kofa mai siffa.The karkata kwana na sealing surface ne yawanci 2 ° 52 ', 3 ° 30', 5 °, 8 °, 10 °, da dai sauransu girman da kwana yafi dogara a kan concave convex na matsakaici zafin jiki.Gabaɗaya, mafi girman yawan zafin jiki na aiki shine, girman girman ya kamata ya kasance, don rage yiwuwar wedging lokacin da aka canza yanayin zafi.A cikin bawul ɗin ƙofar ƙofa, akwai bawul ɗin kofa guda ɗaya, bawul ɗin kofa biyu da bawul ɗin ƙofar roba.Ƙofar ƙofa guda ɗaya yana da tsari mai sauƙi da aiki mai dogara, amma yana buƙatar babban daidaito don kusurwar shingen rufewa, wanda ke da wuyar sarrafawa da gyarawa, kuma ana iya ƙulla shi lokacin da yanayin zafi ya canza.Ana amfani da bawul ɗin ƙofar ƙofa biyu a cikin ruwa da matsakaicin bututun tururi.Amfaninsa shine: daidaiton kusurwar filin rufewa yana buƙatar zama ƙasa, kuma canjin zafin jiki ba shi da sauƙi don haifar da wurin wedging.Lokacin da aka sawa abin rufewa, ana iya sanya shi don biyan diyya.Koyaya, irin wannan shirin yana da sassa da yawa, waɗanda ke da sauƙin haɗawa a cikin matsakaitan viscous kuma suna shafar hatimi.Mafi mahimmanci, babba da ƙananan baffles suna da sauƙin tsatsa bayan amfani da dogon lokaci, kuma ragon yana da sauƙin faɗuwa.Na roba ƙofar weji bawul, wanda yana da sauki shiryawa guda kofa weji kofa bawul, na iya samar da wani karamin adadin na roba nakasawa don rama sabawa a cikin kwana aiki na sealing surface da inganta fasaha ta amfani da * fa'idodi, kuma yana da. mutane da yawa sun zaba.
2. Bisa ga shirye-shiryen da aka yi amfani da bawul, za a iya raba bawul ɗin ƙofar
1) Hawan bawul ɗin ƙofa mai tashi: ƙwanƙarar ƙwayar bawul tana kan murfin bawul ko tallafi.Lokacin buɗewa da rufe ƙofar, juya bawul mai tushe na nut don kammala ɗaga tushen bawul.Irin wannan tsari yana da amfani ga lubrication na sandar bawul, kuma digiri na budewa da rufewa a bayyane yake, don haka ana amfani da shi sosai.
2) Bawul ɗin ƙofar da ba ta tashi ba: ƙwanƙarar ƙwayar bawul tana cikin jikin bawul kuma ta taɓa matsakaicin kai tsaye.Lokacin buɗewa da rufe ragon, juya sandar bawul.Amfanin wannan shirin shine cewa tsayin ƙofar ƙofar kofa koyaushe yana canzawa, don haka sararin kayan aiki yana da ƙananan.Ya dace da bawuloli na ƙofa tare da babban diamita ko ƙuntataccen sarari kayan aiki.Irin wannan shiri za a sanye shi da alamun buɗewa da rufewa don nuna matakin buɗewa da rufewa.Rashin lahani na wannan shirin shine cewa zaren mai tushe ba wai kawai ya kasa yin man shafawa ba, amma kuma kai tsaye ya lalata shi ta hanyar lalacewa kuma dan kadan ya lalace.
An gajarta diamita na bawul ɗin ƙofar
Yin la'akari da cewa diamita na tashar a cikin jikin bawul ya bambanta (yawanci diamita a wurin zama na bawul ya fi ƙanƙanta fiye da haka a haɗin flange), ana kiran shi gajeriyar hanya.
Rage diamita drift zai iya rage girman sassa da ƙarfin da ake buƙata don buɗewa da rufewa.Tare, yana iya faɗaɗa shirin aikace-aikacen sassa.
Bayan rage diamita drift.Juriya na ruwa yana ƙaruwa.
Lokacin aikawa: Mayu-09-2022