Maitiro eKubata Crankshaft, Kukwana, uye Nzira dzeKutsigira
I. Zvinodiwa paKushanda uye Mashandisirwo eMabheyaringi eCrankshaft
Mabheya eCrankshaft anosanganisira mabheya etsvimbo anobatanidza uye mabheya makuru. Basa rawo nderekudzivirira majenari nemabhoya ebheya, kuderedza kukweshana nekusakara. Anoshandura simba regasi rinotumirwa kubva kuboka retsvimbo rinobatanidza piston kuita torque yekunze. Anoshandiswawo kufambisa chitima chevharuvhu yeinjini nezvimwe zvishandiso zvakasiyana-siyana zvekubatsira.
Zvinodiwa paKushandisa: Dzose dzinotsungirira mitoro inochinja-chinja uye kukweshana nekukurumidza; saka, zvinhu zvinotakura zvinofanirwa kunge zvine simba rakakwana rekuneta, kukweshana kushoma, kuramba kupera, uye kuramba ngura.
II. Maumbirwo eMabheyaringi eCrankshaft
Mabheya etsvimbo anobatanidza uye mabheya makuru ane magokora epamusoro neepasi akabatana. Goko rega rega rebheya rinoumbwa nesimbi inotsigirwa nesimbi uye anti-friction alloy layer, kana simbi inotsigirwa nesimbi, anti-friction alloy layer, uye soft plating layer. Yekutanga inonzi two-layer bearing shell, uye yekupedzisira inonzi three-layer bearing shell.
1. Simbi Inotsigira uye Rutivi Runodzivirira Kukweshana
Chitsigiro chesimbi ndicho chinhu chepasi chegoko rebheyaringi, chakagadzirwa nesimbi ine kabhoni shoma ine ukobvu hwe1-3mm. Chidzitiro chekudzivirira kukweshana isimbi ine ukobvu hwe0.3 ~ 0.7mm, iyo yakapfava uye inogona kudzivirira journal.
Zvinhu zvekudzivirira kukweshana:
(1) Chiumbwa chichena (chiumbwa cheBabbitt): Chinoshanda zvakanaka mukudzivirira kukweshana, asi simba rakaderera remakanika uye kusadzivirira kupisa zvakanyanya. Chinowanzoshandiswa muinjini dzepeturu dzine mutoro wakaderera.
(2) Chiumbwa chemhangura chine simba guru: Simba guru remuchina, simba guru rekutakura mutoro, uye simba rakanaka rekudzivirira kupisa. Chinonyanya kushandiswa muinjini dzedhiziri dzine mutoro wakawanda. Zvisinei, mashandiro aro ekudzivirira kukweshana haana kunaka.
(3) Alloy yakagadzirwa nearuminiyamu: Kune mhando nhatu: alloy yearuminiyamu-antimony-magnesium, alloy yearuminiyamu yakaderera-tin, uye alloy yearuminiyamu ine tin yakawanda. Mbiri dzekutanga dzine hunhu hwakanaka hwemakanika uye kugona kwakasimba kwekutakura mutoro, asi hunhu husina kunaka hwekudzivirira kukweshana. Inonyanya kushandiswa muinjini dzedhiziri; yekupedzisira ine hunhu hwakanaka hwemakanika uye hunhu hwekudzivirira kukweshana, uye inoshandiswa zvakanyanya muinjini dzedhiziri nepeturu.
2. Kiyi yekuisa uye goho remafuta
Bearing yetsvimbo inobatanidza ine kiyi yekumisikidza, iyo inoshandiswa kupinza mugomba rekumisikidza remucheto mukuru wetsvimbo inobatanidza uye chivharo chetsvimbo inobatanidza panguva yekuisikidza kudzivirira bearing kuti isafambe mberi kana kutenderera. Gwenzi rekumisikidza rinewo maburi emafuta nemigero yemafuta, izvo zvinofanirwa kuenderana nemaburi emafuta anoenderana panguva yekuisikidza.
III.Kubereka kweCrankshaftSimba Remahara uye Kupindira Kwakakodzera
1. Simba Rakasununguka: Radius yekukombama kwegwenzi rebheyaringi muchimiro charo chakasununguka yakakura zvishoma pane radius yechigaro chebheyaringi. Musiyano wedhayamita unonzi simba rakasununguka kana kuvhurika. Kune mainjini epeturu, kazhinji i0.8~1.5mm, uye kune mainjini edhiziri, i1.5~2.5mm.
2. Kupindirana: Nekuti dhayamita yekunze yebheya rekutakura yakakura zvishoma pane denderedzwa rebheya rechigaro, kupindirana kwakati kunoitika mushure mekunge mabhaudhi etsvimbo asimbiswa. Izvi zvinoita kuti bheya rekutakura rirege kutenderera, kusuduruka, kana kudedera panguva yekushanda, zvichibvumira kupindirana kwakasimba pakati pebheya rekutakura nechigaro chebheya kuti kupisa kuparare. Kurembera kwebheya kunowanzova 0.04 ~ 0.09mm.
Kuongorora: Mushure mekuisa bearing muchigaro chebearing, simbisai mabhaudhi kumativi ese ku torque yakatarwa nemugadziri. Wobva wasunungura bhaudhi zvachose kudivi rimwe chete woshandisa feeler gauge kuti utarise nzvimbo iri pakati pechigaro chebearing nebearing bore. Iyi nzvimbo ndiyo bearing overhang. IV. Crankshaft Thrust Bearing
Basa reCrankshaft Thrust Bearing: Kana mota iri kufamba, clutch pedal inoisa axial thrust kucrankshaft, zvichikonzera kufamba kweaxial. Kufamba kwakanyanya kweaxial kunokanganisa mashandiro akajairika episton connecting rod assembly uye kukanganisa nguva yakakodzera yevharuvhu uye nguva chaiyo yekuisa injini yedhiziri. Mabheya ethrust anodiwa kuti ave nechokwadi chekuti crankshaft iri panzvimbo yeaxial.
Mabheringi eThrust anogona kuiswa panzvimbo imwe chete kuitira kuti crankshaft ikwanise kukura zvakasununguka kana yapiswa. Mhando huru dzinosanganisira:
1. Goko rebheyaringi rakamoneredzwa
2. Michina yekugezesa ine semi-circular thrust
3. Mawachi esimbi anotenderera
Kudzivirira Kuiswa: Rutivi rwemuchina wekuwachisa une chidziviriro chekudzivirira kukweshana (rutivi rune mugero wemafuta) rwakatarisana nezvikamu zvinotenderera. Kana crankshaft ichifamba mberi, muchina wekuwachisa wekumashure une chidziviriro cheaxial; kana ichifamba kumashure, muchina wekuwachisa wekumberi une chidziviriro cheaxial.
Kugadziriswa kweAxial Clearance: Tsiva nema thrust washers ane ukobvu hwakasiyana, kana chinja ukobvu hwe thrust washers. (Chimiro chinowanzova 0.07~0.17mm, ine muganho unobvumidzwa we0.25mm).
V. Nzira dzekutsigira Crankshaft
Crankshaft ine journal huru pakati pecrankshaft mbiri dziri pedyo inonzi crankshaft inotsigirwa zvizere; zvikasadaro, inonzi crankshaft inotsigirwa zvishoma.
1. Crankshaft Inotsigirwa Zvizere:
Zvakanakira: Inowedzera kuomarara kwe crankshaft uye simba rekukotama; inoderedza mutoro pamabheringi makuru.
Zvakashata: Inowedzera huwandu hwenzvimbo dzakagadzirwa nemagetsi pa crankshaft, inowedzera huwandu hwema main bearings, uye inorebesa engine block.
Mashandisirwo: Anoshandiswa zvakanyanya; mainjini edhiziri anowanzo shandisa nzira iyi yekutsigira.
2. Crankshaft Inotsigirwa Zvishoma:
Zvakanakira: Inopfupisa kureba kwe crankshaft, ichideredza kureba kweinjini yese.
Zvakashata: Zvinoda mutoro wakawanda pamabheyaringi makuru.
Mashandisirwo: Injini dzepeturu dzine mutoro wakaderera dzinogona kushandisa nzira iyi.
Nguva yekutumira: Kukadzi-06-2026
