Zonyamulira mavavu mu injini zoyatsira mkati - ndi liti pamene valavu ikufunika?

Aliyense wonyamula ma valve ali ndi udindo wobwezera chilolezo cha valve. Izi zimachepetsa mtunda pakati pa pamwamba pa pushrod ndi shaft cam. Zimakhudza kwambiri nthawi yotsegulira ma valve ndi kutseka kwawo kolondola. Chifukwa chake, chonyamulira ma valve chiyenera kukhala chogwira ntchito ndikupereka chilolezo cha valve ya fakitale mu injini zoyatsira mkati. Dziwani momwe zimagwirira ntchito komanso mukawona kuti china chake sichili bwino ndipo chiyenera kusinthidwa. Onani ngati mungathe kusintha chinthuchi nokha!

Zonyamulira ma valve ndi mapangidwe awo

Makapu a valve - monga momwe zinthuzi zimatchulidwiranso - zimakhala ndi mapangidwe osavuta. Nthawi zambiri amakhala:

• nyumba;
• pisitoni;
• zipinda zotsika komanso zothamanga kwambiri;
• valve valve;
• khungu la mafuta;
• akasupe.

Awa ndi mapangidwe a hydraulic valve lifters omwe amagwiritsidwa ntchito mumainjini ambiri omwe amapangidwa pano. Ubwino wawo wosatsutsika ndi kusowa kosamalira. Komabe, pali opanga matepi opanda ma hydraulic, ndipo amafunika kusinthidwa nthawi ndi nthawi. Izi zitha kukhala zovuta, koma chonyamula valavu choterechi chidzakhala chosavuta komanso chokhazikika.

Ma hydraulic valve lifters - mfundo yogwiritsira ntchito

Kodi hydraulic pusher imagwira ntchito bwanji mu injini? Kuthamanga kwa camshaft cam pamwamba pa tappet kumapangitsa kuti valve yowunikira itseke ndikuwonjezera kuthamanga. Chifukwa cha izi, chilolezo cha valve chimathetsedwa, ndipo valavu imatha kugwira ntchito panthawi yoyenera. Pamene shaft cam imatsitsidwa ndipo sichikhudzanso pusher, valavu imatsegula ndipo kupanikizika m'zipinda kumafanana. Pambuyo pake, valavu ikhoza kutsekedwa ndikubwerera kumalo ake oyambirira.

Hydraulic distributor pusher - ingawonongeke?

Kodi chonyamula ma hydraulic chingalephereke? Inde, inde, chifukwa chake kusintha pafupipafupi ndikofunikira. Chonyamulira valavu chomwe chimayendera pamafuta a injini chimatha kulephera ngati chili ndi kachilombo. Ichi ndi kachigawo kakang'ono kamene kamakhala ndi katundu wambiri komanso kutentha kosinthasintha, choncho kumafuna chisamaliro pakugwira ntchito. Ndikoyenera kugwiritsa ntchito mafuta abwino kwambiri a injini ndikusintha pafupipafupi. Ngakhale dothi laling'ono limatha kutseka ma tchanelo mu zokankhira ndikuletsa ntchito yawo.

Nchiyani Chimayambitsa Vuto la Valve Tappet?

Kuphatikiza apo, pakapita nthawi, zokankhira zama hydraulic distributors zimatha. Pistoni, kasupe, kapena mapepala amafuta akhoza kutha ndipo mafuta a injini amayamba kulowa muchipinda choyaka. Kulipiridwa kwa ma valve kungathenso kukhala kothandiza, monga momwe tingawonere kuchokera ku khalidwe la injini. Kuti timvetse izi, ndi bwino kufotokoza chimene valve chilolezo.

Chilolezo cha ma valve mu injini zoyatsira mkati

Chonyamulira valavu chikugwirizana ndi kusiyana. Chifukwa chiyani makamera a injiniyo sanathe kukhudza mwachindunji ndi kuwongolera mavavu? Izi sizingatheke pazifukwa zingapo. Chimodzi mwa zofunika kwambiri ndi khalidwe la zitsulo pansi pa chikoka cha kutentha ntchito. Magawo owerengera nthawi yamagalimoto amakula akatenthedwa, zomwe zimachepetsa mtunda pakati pa magawo amodzi. Kuwongolera nthawi yotsegula ndi kutseka kwa ma valve kumafuna makina okhala ndi chilolezo chowonekera chomwe chingathe kufananizidwa pamene injini ikuwotha ndikuzizira. Kupanda kutero, pakugwira ntchito kwa unit, ma valve sangatseke ndipo kugundana ndi ma pistoni kapena kutsika kwa kuponderezana kumatha kuchitika.

Zonyamulira ma valve agalimoto owonongeka - zizindikiro zakutha

Ngati mwawonongeka kapena kuvala matepi m'galimoto yanu, zizindikiro zimawonekera mu chikhalidwe cha injini. Popanda ntchito, injini ikazizira, ntchito ya unit ikhoza kusokonezeka. Ma revs sadzakhala nthawi zonse ndipo kuponderezana kudzatsika, chifukwa cha chilolezo chochepa kwambiri cha valve. Chotsatira chake, ma valve samatseka, omwe nthawi yomweyo amamveka ngati kuchepa kwa kayendetsedwe ka galimoto. Kuphatikiza pa chilolezo chochepa kwambiri, chonyamulira valavu chingayambitsenso chilolezo chochulukirapo. Ndiye mudzamva zitsulo kugogoda pa ntchito. Mipiringidzo ikatentha, imayima pamene kukulitsa kwachitsulo kumachotsa kusewera kochulukirapo.

Momwe mungayang'anire zonyamula ma hydraulic mugalimoto?

Kawirikawiri zinthuzi sizimalephera mwadzidzidzi, koma pang'onopang'ono zimataya katundu wawo. Choncho, dalaivala wosadziwa sangathe kumva kapena kuona kusintha kwa injini. Komabe, ndizothandiza kuwona momwe injini yozizira imagwirira ntchito:

• ngati ikusunga chiwongola dzanja chokhazikika;
• pali vuto ndi kukanikiza;
• pali kusiyana kosiyana mu ntchito pa injini yozizira ndi yotentha;
• imapanga mawu ena aliwonse atangoyambitsa.

Chonyamulira ma valve - mtengo wa zida zosinthira ndikusintha

Ndindalama zingati kusintha zonyamulira ma hydraulic? Mtengo wa gawo limodzi siwokwera kwambiri. M'mainjini a dizilo otchuka, chinthu choterocho chimatha mtengo kuchokera ku ma zloty angapo mpaka angapo. Kumbukirani, komabe, kuti kaŵirikaŵiri choloŵa m’malo chimakwirira zigawo zonse, osati, mwachitsanzo, 2 mwa 8 kapena 16. Mmodzi wa valve pusher amasankhidwa pa valve imodzi, kotero ngati, mwachitsanzo, pali 16 mwa iwo pamutu, ndiye kuti 16 pushers ayenera kugulidwa m'sitolo. Kuphatikiza apo, mumachotsanso gasket pansi pa chivundikiro cha valve, chomwe chimawononga ma zloty khumi owonjezera. Makina abwino amalangizanso kusintha mafuta a injini. Choncho, chirichonse pamodzi ndi ntchito chikhoza kuyandikira malire a 800-100 euro.

Kudzilowetsa m'malo mwa zonyamulira ma valve

Nthawi zambiri ndikwabwino kusintha zokankhira m'magawo ovomerezeka. Inde, mukhoza kuchita nokha ndipo palibe filosofi yaikulu mu izi, koma muyenera kukhala ndi chidziwitso chochuluka chokhudza mapangidwe ndi ntchito ya injini. Ngati chonyamula valavu chawonongeka, m'pofunika kuchotsa chivundikiro cha valve ndikumasula camshaft (kapena shafts). Disassembly palokha sizovuta kwambiri, koma kukhazikitsanso zinthu izi m'malo oyenera kungakhale vuto kwa wokonda zosangalatsa.

Chonyamulira ma valve popanda chipukuta misozi cha hydraulic backlash

Ma injini ena a Honda ndi Renault ali ndi chilolezo chosinthika mwamakina. Tappet ya valve sichimadzazidwa ndi mafuta, ndipo ntchito yake imachokera pa mbale zapadera kapena zinthu zomangidwa ndi zomangira. Kusiyanaku kumasinthidwa pogwiritsa ntchito mbale zowonjezera kapena choyezera chomwe mungayang'ane nacho mtunda. Kwa mayunitsi ena amagetsi, ntchitoyo siyenera kubwereza nthawi zambiri (nthawi zambiri makilomita 60-000). Komabe, ngati injini ikuyenda pa gasi, nthawi zina ndikofunikira kusintha kusiyana kwa 100 nthawi zambiri! Ndipo izi zimafuna pafupifupi kuchotsedwa kwapachaka kwa chivundikiro ndi kusintha kwa ma valve.