Menene ɗaukar iska
Bearing, Ina ganin kowa zai saba da shi, bearing ɗinmu da aka saba amfani da shi ya kamata ya zama mafi shahara, muhimmin ɓangare ne na injuna da kayan aiki na zamani. To menene bearing ɗin iska?
Ƙarfin iskar gas: Wani abu mai sauƙi wanda ke amfani da iskar gas a matsayin mai shafawa. Man shafawa na iska da aka fi amfani da shi shine iska, amma ana iya amfani da nitrogen, argon, hydrogen, helium ko carbon dioxide kamar yadda ake buƙata.
A cikin na'urorin compressors na gas, masu faɗaɗawa da masu zagayawa, galibi ana amfani da hanyar aiki azaman mai.
Bearing na iska yana nufin bearing ɗin da ke tallafawa nauyin tare da taimakon fim ɗin iska mai matsin lamba da aka samar tsakanin saman bearing ɗin zamiya, kuma saman bearing ɗin zamiya yana raba gaba ɗaya ta hanyar fim ɗin iska lokacin aiki.
Bearings na iska suna cikin bearings na ruwa a cikin bearings na zamiya, waɗanda ake shafa musu mai a lokacin aiki, kuma iska ce mai sanya man shafawa a cikinsu.
Rarrabuwar bearings na iska
Dangane da tsarin samuwar fim ɗin iska mai matsin lamba, galibi ana raba bearings ɗin iska zuwa rukuni biyu: bearings na aerodynamic da bearings na aerostatic.
Fim ɗin iska mai matsin lamba na bearing na aerodynamic yana samuwa ne ta hanyar kawo iska zuwa yankin haɗuwa tsakanin saman ma'auratan zamiya ta hanyar motsi na ma'auratan zamiya, kuma fim ɗin iska yana da siffar wedge. Tunda bearing na aerodynamic ba sa buƙatar tushen iska na waje, ana kuma kiran su da "bearing masu aiki da kansu".
Fim ɗin iska mai matsin lamba na bearing na aerostatic yana samuwa ne ta hanyar iska mai matsewa ta waje da aka shigar ta cikin matsi tsakanin saman biyun zamiya. Bearing na aerostatic yana buƙatar iska mai tsabta ta waje.
Siffofin ɗaukar iska
(1) Rashin juriyar gogayya sosai
Tunda dankowar iskar gas ta yi ƙasa da na ruwa sosai, dankowar iska a zafin ɗaki shine 1/5000 kawai na man inji mai lamba 10, kuma juriyar gogayya ta bearing tana daidai da danko, don haka gogayya ta bearings ɗin gas ta yi ƙasa da na bearings ɗin mai mai ruwa-ruwa.
(2) Faɗin kewayon saurin da ya dace
Juriyar gogayya ta bearing gas ɗin ba ta da yawa, ƙaruwar zafin jiki ba ta da yawa, kuma ƙaruwar zafin jiki ba ta wuce 20 ~ 30 °C ba idan gudun ya kai 50,000 rpm, kuma gudun ya kai 1.3 miliyan rpm. Haka kuma ana iya amfani da bearings na hydrostatic don ƙananan gudu, har ma da sifili.
(3) Faɗin kewayon yanayin zafi mai dacewa
Iskar gas ɗin tana ci gaba da kasancewa cikin iskar gas a wurare daban-daban, kuma zafin jiki ba ya shafar ɗanɗanon ta (ɗanɗanon yana ƙaruwa kaɗan a lokacin da yanayin zafi ke ƙaruwa, misali daga 20°C zuwa 100°C, ɗanɗanon iska yana ƙaruwa da 23%), don haka ana iya amfani da bearings ɗin gas a cikin kewayon zafin jiki na -265°C zuwa 1650°C.
(4) Ƙarancin ƙarfin ɗaukar kaya
Ƙarfin ɗaukar nauyin bearing na hydrodynamic yana daidai da ɗanko, kuma ƙarfin ɗaukar nauyin bearing na pneumatic yana da 'yan dubbai kaɗan ne kawai na girman bearing na hydrodynamic. Saboda matsewar iskar gas, akwai iyaka ga ƙarfin ɗaukar nauyin bearing na gas, kuma ana iya ƙara nauyin kowane yanki zuwa 0.36 MPa kawai.
(5) Bukatun daidaiton aiki mai girma
Domin inganta ƙarfin ɗaukar kaya da kuma taurin iska na bearings na gas, yawanci ana amfani da izinin ɗaukar kaya (ƙasa da 0.015 mm) na bearings masu man shafawa na ruwa, kuma ana buƙatar inganta daidaiton sassan daidai gwargwado.
Amfani da bearings na iska
Bearing na iska wani sabon nau'in bearing ne wanda ke amfani da makamashin da ke amfani da iska don taka rawa wajen tallafawa.
Man shafawa da ake amfani da shi kawai shine iska; Saboda haka, fasahar ɗaukar iska ta dace da kayan aikin da dole ne su kasance ba tare da gurɓatawa ba ko kuma don yanayin aiki.
A cikin bearings na iska, ana maye gurbin ƙwallon da matashin iska. Wataƙila ɗaya daga cikin shahararrun aikace-aikacen bearings na iska shine hovercraft.
Wani babban fanka yana hura iska a ƙarƙashin jirgin, yana toshe hanyar iska ta cikin wani roba mai roba mai laushi. Matsanancin iskar da ake samu a ƙarƙashin jirgin yana tallafawa nauyin jirgin kuma yana sa ya yi iyo a kan matashin iska.
Amfani da bearings na iskar gas yana ƙara faɗaɗa kuma an yi nazari sosai a kai. A halin yanzu, ana iya amfani da bearings na iskar gas a cikin injunan yadi, injunan kebul, kayan aikin injinan kayan aiki, gyroscopes, masu raba centrifugal masu sauri, injinan haƙori, firiji masu aiki a ƙananan yanayin zafi, masu faɗaɗa hydrogen da masu zagaya iskar gas suna aiki a yanayin zafi mai yawa.
Lokacin Saƙo: Maris-28-2025
