Kodi chida cha Valve ndi chiyani?

Kumvetsetsa Zida za Valve: Chodabwitsa cha Engineering

Zida za valveNdi njira yofunika kwambiri mu injini za nthunzi, yomwe imayang'anira nthawi ndi kayendedwe ka kulowetsa nthunzi ndi mpweya mu masilinda a injini. Ntchito yake ndiyofunikira pakukhathamiritsa bwino, mphamvu, komanso magwiridwe antchito pamakina oyendetsedwa ndi nthunzi. Kuchokera m'ma locomotive mpaka mainjini oyima, zida za valve zimayimira mphambano yochititsa chidwi yamakina olondola komanso luso laukadaulo.

Zoyambira za Valve Gear

Cholinga chachikulu cha zida za valve ndikuwongolera kutuluka kwa nthunzi kulowa ndi kutuluka mu masilinda a injini. Izi zikuphatikiza ntchito ziwiri zazikulu:

1. Kuloledwa kwa nthunzi: Kutsegula ma valve kuti alole nthunzi yothamanga kwambiri kuti ilowe mu silinda, kuyendetsa pisitoni.
2. Nthunzi Exhaust: Kutsegula mavavu kuti mutulutse nthunzi yomwe yathera, kukonzekera silinda ya mkombero wotsatira.

Mwa kulunzanitsa njirazi, zida za valve zimatsimikizira kuti injini imagwira ntchito bwino komanso imapereka mphamvu zambiri.

Mitundu ya Zida za Valve

Kwa zaka zambiri, mapangidwe angapo a zida za valve apangidwa, iliyonse ikupereka zabwino zake. Zina mwa mitundu yodziwika kwambiri ndi izi:

• Stephenson Valve Gear:Imodzi mwa mitundu yakale kwambiri komanso yogwiritsidwa ntchito kwambiri, yomwe imadziwika kuti ndi yosavuta komanso yodalirika.
• Zida za Valve za Walschaerts:Amagwiritsidwa ntchito kwambiri m'ma locomotives, omwe amapereka chiwongolero cholondola komanso kuchepa kwapang'onopang'ono kwa zida.
• Zida za Baker Valve:Mapangidwe apambuyo omwe amachotsa magawo otsetsereka, opereka dongosolo lokhazikika komanso logwira mtima.
• Zida za Caprotti Valve:Dongosolo la ma valve a poppet omwe amagwiritsidwa ntchito m'mainjini ena amakono a nthunzi, kutsindika kuchita bwino komanso kuchepetsa kukonza. zida za valve

Wopanga Gear Belon Gear - Shanghai Belon Machinery Co., Ltd.

Makina amagetsi amagetsi mu injini za nthunzi nthawi zambiri amagwiritsa ntchito magiya a spur kapena ma bevel, kutengera kapangidwe kake ndi cholinga:

1. Spur Gears

Spur zida zofala m'makina osavuta a ma valve pomwe mano agiya amafanana ndi axis ya giya.
Amagwiritsidwa ntchito potumiza kusuntha pakati pa ma shafts ofanana mumakina a valve.
Amakondedwa chifukwa chosavuta kupanga komanso kufalitsa koyenda bwino.
2. Bevel Gears
Zida za bevelamagwiritsidwa ntchito pamene kusuntha kukufunika kufalikira pakati pa ma shafts pa ngodya, nthawi zambiri madigiri 90.
Amapezeka m'mapangidwe ena amagetsi a valve, makamaka pamene injiniyo imafunikira kusuntha kwa angular.

3. Zida za Helical(Zosowa mu ma valve gear systems)

Nthawi zina amagwiritsidwa ntchito mosavutikira komanso mopanda phokoso, koma zocheperako chifukwa chazovuta komanso mtengo wake.
Nthawi zambiri, magiya amagetsi amagetsi amaika patsogolo kulimba komanso kudalirika kuposa liwiro, chifukwa cha zomwe injini za nthunzi zimafunikira.

Zigawo ndi Ntchito

Dongosolo lamagetsi lamagetsi limaphatikizapo zinthu zingapo: ndodo za eccentric, maulalo, ma levers, ndi ma valve okha. Kusuntha kwa magawowa kumachokera ku crankshaft ya injini kapena mawilo oyendetsa, kuwonetsetsa kulumikizidwa kolondola ndi kayendedwe ka pisitoni. Kusintha kwa nthawi ya valve kungathenso kupangidwa kuti zigwirizane ndi katundu wosiyanasiyana kapena machitidwe ogwiritsira ntchito, njira yotchedwa "notching up" kapena "kulumikiza."

Udindo mu Kuchita Bwino ndi Kuchita

Vavuzida imakhudza kwambiri kutentha kwa injini. Kusunga nthawi moyenera kumachepetsa kuwonongeka kwa nthunzi ndikuwonetsetsa kuti injini ikugwira ntchito mkati mwa magawo ake oyenera. Mainjiniya nthawi zambiri amayesa ma valavu osiyanasiyana kuti awonjezere kutulutsa mphamvu ndikuchepetsa kugwiritsa ntchito mafuta ndi madzi.

Cholowa ndi Kufunika Kwamakono

Ngakhale ma injini a nthunzi m'malo mwake adasinthidwa ndi injini zoyatsira mkati ndi ma mota amagetsi, zida zama valve zimakhalabe nkhani yosangalatsa pakusunga zakale komanso maphunziro aukadaulo. Sitima zambiri zapamtunda ndi okonda zimasunga cholowacho posamalira ndikubwezeretsanso ma locomotives okhala ndi zida zosiyanasiyana zama valve.