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Bearings na Tallafi da Bearings na Tursasawa

 

1. Bearings na Tallafi da Aikinsu

Bearings na tallafimuhimmin sashi ne na injin turbin tururi. Babban bearing kuma ana kiransa bearing radial.

Aikinsa shine tallafawa dukkan nauyin rotor da ƙarfin centrifugal da rashin daidaiton taro na rotor ya haifar, da kuma tantance matsayin radial na rotor a cikin silinda. Tunda kowane bearing dole ne ya jure manyan kaya kuma littafin shaft yana juyawa a cikin babban gudu, bearing na turbine turbine yana amfani da bearing na zamiya irin na mujalla bisa ga ƙa'idar man shafawa mai ruwa. Fim ɗin mai mai shafawa mai matsi yana samuwa tsakanin littafin shaft da bearing, yana haifar da gogayya mai ruwa don tabbatar da aminci da kwanciyar hankali na turbine turbine.

 

Akwai manyan nau'ikan bearings guda huɗu na turbine turbine: bearings na tallafi na harsashi mai siffar silinda, bearings na tallafi na harsashi mai siffar elliptical, bearings na tallafi na wedge mai mai uku, da bearings na tallafi na pad mai karkatarwa.

 

2. AikinBearings na tura

Aikin bearing na turawa shine ya jure matsin lamba na axial na rotor yayin aiki da kuma tantancewa da kuma kula da matsayin axial na turbine rotor da silinda.

 

Ana iya tsara bearings na turawa a matsayin na'urori masu zaman kansu ko kuma a haɗa su da bearings na tallafi zuwa na'ura ɗaya, wanda ake kira bearings na haɗin gwiwa (haɗaɗɗen bearings na turawa-goyon baya).

A tsarin gini, suna iya zama sassa da yawa ko kuma siffar sashe; a halin yanzu, nau'in da aka fi amfani da shi shine bearing mai siffar sashe. Babban kayan aikinsa sun haɗa da faifan aiki, faifan da ba sa aiki, shims na daidaitawa, da zoben hawa.

 

A ɓangarorin biyu na faifan turawa, an sanya faifan aiki goma zuwa goma sha biyu da marasa aiki. Kowane faifan an ɗora shi a kan zoben hawa; faifan aiki yana ɗauke da tura axial gaba na rotor, kuma faifan da ba sa aiki suna ɗauke da turawa axial baya.

 

Kushin da ba sa aiki na bearing ɗin turawa ba yawanci ba sa ɗaukar wani tururi. Duk da haka, lokacin da nauyin turbine ya ragu ba zato ba tsammani, kamar a cikin ƙin ɗaukar kaya, turbine ɗin na iya fuskantar tururin axial a akasin alkiblar iska. A wannan lokacin, kushin da ba sa aiki, ta hanyar fim ɗin mai mai siffar wedge, suna taimakawa wajen daidaita wannan ɓangaren tururin axial, suna hana wuce gona da iri na turbine gaba da kuma guje wa karo da lalacewa tsakanin sassan motsi da na tsaye.

 

3. Sigogi na Kula da TSI Yayin Aikin Turbin Turbine Mai Tururi

1. Zafin ƙarfe mai ɗaukar nauyi <105°C.

2. Zafin ƙarfe mai ɗaukar nauyi <100°C.

3. Zafin fuska na aiki na matsewar kushin <100°C.

4. Zafin fuska mara aiki na matsewar kushin <100°C.

5. Matsin lamba na axial < 1.2 mm da > -0.6 mm.

6. Faɗaɗa bambancin silinda mai matsa lamba mai girma da matsakaici < 6 mm da > -3 mm.

7. Girgizar murfin bearing < 0.05 mm, girgizar tsarin shaft < 125μm.

8. Karkacewar da ke tsakanin silinda na hagu da dama ya kamata ta zama ƙarama.