Kuthamanga kwa injini ya dizilo kudzakhala kotsika kwambiri kapena kusakhalapo chifukwa cha kuvala kwa magawo a injini, kuphatikiza kosayenera kapena zolakwika zina. Zolakwika monga kuthamanga kwamafuta ochulukirapo kapena cholozera chotsika cha pressure gauge. Zotsatira zake, ngozi zimachitika pogwiritsa ntchito makina omanga, zomwe zimapangitsa kuti pakhale zotayika zosafunikira.
1. Kuthamanga kwamafuta ochepa
Pamene kupanikizika komwe kumasonyezedwa ndi mphamvu yamagetsi yamafuta kumapezeka kuti ndi yotsika kuposa mtengo wamba (0.15-0.4 MPa), imitsani makina nthawi yomweyo. Mukadikirira mphindi 3-5, chotsani choyezera mafuta kuti muwone momwe mafutawo alili komanso kuchuluka kwake. Ngati kuchuluka kwamafuta sikukwanira, kuyenera kuwonjezeredwa. Ngati kukhuthala kwa mafuta kumakhala kochepa, kuchuluka kwa mafuta kumakwera ndipo kununkhira kwamafuta kumachitika, mafuta amasakanizidwa ndi mafuta. Ngati mafuta ali oyera ngati mkaka, ndi madzi osakanikirana ndi mafuta. Yang'anani ndikuchotsa kutayikira kwamafuta kapena madzi ndikusintha mafutawo ngati pakufunika. Ngati mafuta akwaniritsa zofunikira za injini ya dizilo yamtunduwu ndipo kuchuluka kwake kuli kokwanira, masulani pulagi yodutsa panjira yayikulu ndikutembenuza crankshaft. Ngati mafuta ochulukirapo atayidwa, chilolezo cha makwerero a chimbalangondo chachikulu, kulumikiza ndodo ndi kunyamula camshaft kungakhale kwakukulu kwambiri. Chilolezo chonyamula chiyenera kufufuzidwa ndi kusinthidwa. Ngati mafuta akutuluka pang'ono, akhoza kutsekedwa fyuluta, kutayikira kwa valve yoletsa kuthamanga kapena kusintha kosayenera. Panthawiyi, fyulutayo iyenera kutsukidwa kapena kufufuzidwa ndikusintha valavu yoletsa kuthamanga. Kusintha kwa valve yochepetsera kupanikizika kuyenera kuchitidwa pamalo oyesera ndipo sikuyenera kupangidwa mwakufuna. Kuonjezera apo, ngati pampu yamafuta imakhala yowonongeka kwambiri kapena chisindikizo cha gasket chikuwonongeka, zomwe zimapangitsa kuti pampu ya mafuta isayambe kupopera mafuta, imapangitsanso kuti mphamvu ya mafuta ikhale yochepa kwambiri. Panthawi imeneyi, m'pofunika kuyang'ana ndi kukonza pampu yamafuta. Ngati palibe vuto lomwe lapezeka mutayang'ana zomwe tafotokozazi, zikutanthauza kuti sikelo yoyezera kuthamanga kwamafuta yasokonekera ndipo geji yatsopano yamafuta iyenera kusinthidwa.
2. Palibe mphamvu yamafuta
Pogwiritsa ntchito makina omanga, ngati chizindikiro chamafuta chikuyatsa ndipo cholozera chamafuta amafuta chikulozera ku 0, makinawo ayenera kuyimitsidwa nthawi yomweyo ndipo moto uyenera kuyimitsidwa. Kenako onani ngati payipi yamafuta ikudontha kwambiri chifukwa chakuphulika mwadzidzidzi. Ngati kunja kwa injiniyo kulibe kutayira kwakukulu kwamafuta, masulani kuphatikizika kwa choyezera mphamvu yamafuta. Ngati mafuta atuluka mwachangu, mphamvu yamafuta imawonongeka. Popeza fyuluta yamafuta imayikidwa pa cylinder block, nthawi zambiri pamafunika kukhala ndi khushoni yamapepala. Ngati pepala khushoni wokwera molakwika kapena dzenje lolowera mafuta chikugwirizana ndi dzenje dziko mafuta, mafuta sangathe kulowa waukulu mafuta ndimeyi. Izi ndizowopsa, makamaka kwa injini ya dizilo yomwe yangosinthidwa kumene. Ngati palibe zochitika zachilendo zomwe zimapezeka kudzera m'macheke omwe ali pamwambawa, vuto likhoza kukhala pa pampu yamafuta ndipo pampu yamafuta iyenera kuyang'aniridwa ndikukonzedwa.
3. Kuthamanga kwamafuta kwambiri
M'nyengo yozizira, injini ya dizilo ikangoyamba kumene, idzapezeka kuti kuthamanga kwa mafuta kuli pamtunda wapamwamba ndipo kumatsika mpaka kukhazikika pambuyo potenthedwa. Ngati mtengo womwe wasonyezedwa wa geji yoyezera mafuta umaposa mtengo wanthawi zonse, valavu yoletsa kuthamanga iyenera kusinthidwa kuti ikwaniritse mtengo womwe watchulidwa. Pambuyo potumiza, ngati mphamvu yamafuta ikadali yokwera kwambiri, mtundu wamafuta uyenera kuyang'aniridwa kuti muwone ngati kukhuthala kwamafuta ndikokwera kwambiri. Ngati mafuta alibe viscous, zikhoza kukhala kuti mafuta opangira mafuta atsekedwa ndikutsukidwa ndi mafuta a dizilo abwino. Chifukwa cha kuchepa kwamafuta a dizilo, mutha kutembenuza choyambira ndi crankshaft kwa mphindi 3-4 pakuyeretsa (zindikirani kuti injini sayenera kuyiyambitsa). Ngati injini iyenera kuyambitsidwa kuti iyeretsedwe, imatha kutsukidwa mutasakaniza 2/3 yamafuta ndi 1/3 yamafuta osapitilira mphindi zitatu.
4. Cholozera cha choyezera kuthamanga kwamafuta chimazungulira mmbuyo ndi mtsogolo
Pambuyo poyambitsa injini ya dizilo, ngati cholozera chamagetsi amafuta chimayenda mmbuyo ndi mtsogolo, choyezera mafuta chiyenera kutulutsidwa poyamba kuti muwone ngati mafuta ndi okwanira, ndipo ngati sichoncho, mafuta oyenerera ayenera kuwonjezeredwa molingana ndi muyezo. Valavu yodutsa iyenera kuyang'aniridwa ngati pali mafuta okwanira. Ngati kasupe wa valavu yodutsayo ndi wopunduka kapena alibe elasticity yokwanira, kasupe wa valve yodutsa ayenera kusinthidwa; Ngati valavu yodutsa sichitseka bwino, iyenera kukonzedwa
Nthawi yotumiza: Jun-21-2020
