Hokona tika mai i te wheketere SAIC MAXUS V80 C00014713 Mowhiti Piston-92MM

Te mōhiotanga ki ngā hua

Ko te Mowhiti Piston he mowhiti whakarewa e whakamahia ana hei whakauru ki roto i te awaawa o te piston. E rua ngā momo mowhiti piston: te mowhiti kōpeketanga me te mowhiti hinu. Ka whakamahia te mowhiti kōpeketanga hei hiri i te ranunga mura i roto i te rūma mura; ka whakamahia te mowhiti hinu hei waru i te hinu taikaha mai i te rango.

He mowhiti whakarewa rapa te mowhiti piston, he nui te whakawhanuitanga o waho, ka huihuia ki roto i te awaawa porowhita e rite ana ki te wāhanga whakawhiti. Ko ngā mowhiti piston hurihuri me te hurihanga e whakawhirinaki ana ki te rerekētanga pēhanga o te hau, te wai rānei hei hanga hiri i waenganui i te mata porowhita o waho o te mowhiti me te rango me tetahi taha o te mowhiti me te awaawa mowhiti.

He whānuitia te whakamahinga o ngā mowhiti piston i roto i ngā mīhini hiko maha, pērā i ngā miihini mamaoa, ngā miihini tīhiera, ngā miihini penehīni, ngā mīhini whakapūngao, ngā mīhini waipēhi, me ētahi atu, ā, he whānuitia hoki te whakamahinga i roto i ngā motuka, ngā tereina, ngā kaipuke, ngā waka tere, me ētahi atu. I te nuinga o te wā, ka tāutahia te mowhiti piston ki roto i te awaawa mowhiti o te piston, ā, ka hangaia he rūma me te piston, te raina rango, te pane rango me ētahi atu wāhanga hei mahi.

hiranga

Ko te mowhiti piston te wāhanga matua o roto i te miihini wahie, e whakaoti ana i te hiri o te hau wahie me te rango, te piston, te pakitara rango, me ētahi atu. Ko ngā miihini motuka e whakamahia whānuitia ana ko ngā miihini tīhiera me te penehīni. Nā te rerekētanga o te mahi wahie, he rerekē anō hoki ngā mowhiti piston e whakamahia ana. I hangaia ngā mowhiti piston o mua mā te whakarewa, engari nā te whanaketanga o te hangarau, i whānau mai ngā mowhiti piston maitai kaha-teitei. , ā, nā te whakapai tonu i te mahi a te miihini me ngā whakaritenga taiao, he maha ngā tono maimoatanga mata matatau, pērā i te rehu wera, te whakakikorua hiko, te whakakikorua chrome, te nitriding hau, te whakatakotoranga tinana, te paninga mata, te phosphate konutea-manganese, me ētahi atu, ka tino pai ake te mahi a te mowhiti piston.

Mahi

Ko ngā mahi a te mowhiti piston e whā ngā mahi: te hiri, te whakahaere i te hinu (whakahaere hinu), te kawe wera (whakawhiti wera), me te ārahi (tautoko). Te hiri: e pā ana ki te hiri i te hau, te ārai i te hau i roto i te ruma mura kia kaua e turuturu ki roto i te pouaka crank, te whakahaere i te turuturu o te hau ki te iti rawa, me te whakapai ake i te pai o te wera. Ehara i te mea ka whakaiti noa te turuturu o te hau i te mana o te miihini, engari ka whakakino hoki i te hinu, koinei te mahi matua o te mowhiti hau; Te whakatikatika i te hinu (whakahaere hinu): te waru i te hinu whakahinuhinu nui i runga i te pakitara rango, ā, i te wa ano ka angiangi te pakitara rango. Mā te kiriata hinu angiangi ka whakarite kia whakahinuhinu noa te rango, te piston me te mowhiti, koinei te mahi matua o te mowhiti hinu. I roto i ngā miihini tere-teitei o ēnei rā, ka aro nui ki te mahi a te mowhiti piston hei whakahaere i te kiriata hinu; te kawe wera: ka tukuna te wera o te piston ki te raina rango mā te mowhiti piston, arā, te whakamatao. E ai ki ngā raraunga pono, e 70-80% o te wera e whiwhihia ana e te tihi o te piston i roto i te piston kāore i whakamataohia ka marara mā te mowhiti piston ki te pakitara o te rango, ā, e 30-40% o te piston kua whakamataohia ka tukuna ki te rango mā te mowhiti piston. Tautoko: Ka pupuri te mowhiti piston i te piston i roto i te rango, ka ārai i te piston kia kaua e pa tika ki te pakitara o te rango, ka whakarite kia maeneene te nekehanga o te piston, ka whakaiti i te ātete waku, ā, ka ārai i te piston kia kaua e patuki i te rango. I te nuinga o te wā, e rua ngā mowhiti hau me te mowhiti hinu kotahi e whakamahia ana e te piston o te miihini penehīni, ko te miihini tīhiera ia e rua ngā mowhiti hinu me te mowhiti hau kotahi e whakamahia ana. [2]

āhuatanga

kaha

Ko ngā kaha e pā ana ki te mowhiti piston ko te pēhanga hau, te kaha pīngore o te mowhiti tonu, te kaha korekore o te nekehanga tauutuutu o te mowhiti, te waku i waenga i te mowhiti me te rango me te awaawa mowhiti, me ētahi atu. Nā ēnei kaha, ka puta i te mowhiti ngā nekehanga taketake pēnei i te nekehanga tuaka, te nekehanga radial, me te nekehanga hurihuri. Hei tāpiri, nā ōna āhuatanga nekehanga, me te nekehanga koretake, ka puta te mowhiti piston i te wiri whakatārewatanga me te tuaka, te nekehanga me te wiri koretake radial, te nekehanga takahuri, me ētahi atu i puta mai i te nekehanga koretake tuaka. He maha ngā wā ka ārai ēnei nekehanga koretake i te mahi a ngā mowhiti piston. I te wā e hoahoa ana i te mowhiti piston, me tino aro ki te nekehanga pai me te whakahaere i te taha kino.

kawe wera

Ka tukuna te wera nui e puta mai ana i te tahunga ki te pakitara o te rango mā te mowhiti piston, kia taea ai te whakamatao i te piston. Ko te wera e marara ana ki te pakitara o te rango mā te mowhiti piston ka eke ki te 30 ki te 40% o te wera e mimitihia ana e te tihi o te piston.

te ātete hau

Ko te mahi tuatahi a te mowhiti piston he pupuri i te hiri i waenganui i te piston me te pakitara rango, me te whakahaere i te turuturu o te hau ki te iti rawa. Ko te mowhiti hau te mahi matua o tēnei mahi, arā, i raro i ngā āhuatanga whakahaere katoa o te miihini, me whakahaere te turuturu o te hau me te hau kua kōpeketia ki te iti rawa hei whakapai ake i te pai o te wera; hei ārai i te turuturu i waenganui i te rango me te piston, i waenganui rānei i te rango me te mowhiti. Hopukia; ārai i te pakaru i puta mai i te kino o te hinu whakahinuhinu, me ētahi atu.

Whakahaere hinu

Ko te mahi tuarua o te mowhiti piston he waru tika i te hinu whakahinuhinu e piri ana ki te pakitara o te rango, me te pupuri i te whakamahinga hinu noa. Ina nui rawa te hinu whakahinuhinu e tukuna ana, ka mimitihia ki roto i te rūma mura, ka piki ake te whakamahinga wahie, ā, ka pā kino ki te mahi a te miihini nā ngā putunga waro i puta mai i te mura.

Tautoko

Nā te mea he iti ake te piston i te diameter o roto o te rango, ki te kore he mowhiti piston, kāore te piston e pumau i roto i te rango, ā, kāore e taea te neke noa. I taua wā anō, ka ārai hoki te mowhiti i te piston kia kaua e pa tika ki te rango, ā, he mahi tautoko anō hoki. Nō reira, ka neke ake, ka heke iho te mowhiti piston i roto i te rango, ā, ka mau katoa tōna mata reti i te mowhiti.

Whakarōpūtanga

Mā te hanganga

A. Hanganga kotahi: mā te tukanga whakarewa, te whakahāngai whakauru rānei.

b. Mowhiti whakakotahi: He mowhiti piston i hangaia mai i ngā wāhanga e rua, neke atu rānei, kua huihuia ki roto i te awaawa mowhiti.

c. Mowhiti hinu kōhao: he mowhiti hinu he taha whakarara, e rua ngā kōhao whenua pā, me ngā kōhao whakahoki hinu.

D. Mowhiti hinu puna koiri kōhao: tāpirihia te mowhiti hinu o te puna tautoko koiri ki roto i te mowhiti hinu kōhao. Ka taea e te puna tautoko te whakanui ake i te pēhanga motuhake radial, ā, ka ōrite tōna kaha ki te mata o roto o te mowhiti. He mea noa te kitea i roto i ngā mowhiti miihini tīhiera.

E. Mowhiti hinu whitiki maitai whakakotahi: he mowhiti hinu i hangaia mai i te mowhiti arai me ngā mowhiti waru e rua. He rerekē te hoahoa o te mowhiti tuara i runga i te kaihanga, ā, he mea noa te kitea i roto i ngā mowhiti miihini penehīni.

Āhua wāhanga

Mowhiti peere, mowhiti koeko, mowhiti miro anga-roto, mowhiti poro me te mowhiti trapezoid, mowhiti ihu, mowhiti miro pakihiwi o waho, mowhiti miro anga-roto, mowhiti hinu whakakotahi whitiki maitai, mowhiti hinu anga-roto rerekē, rite tonu ki te mowhiti hinu anga-roto, mowhiti hinu puna koiri rino maka, mowhiti hinu maitai, me ētahi atu.

Mā te rauemi

Rino maka, maitai.

maimoatanga mata

Mowhiti nitride: Kei runga ake i te 950HV te pakeke o te paparanga nitride, ko te pakarukaru he taumata 1, ā, he pai te ātete ki te kakahu me te ātete ki te waikura. Mowhiti whakakikoruatia ki te kromo: He pai te paparanga whakakikoruatia ki te kromo, he kiato, he maeneene, he pakeke ake i te 850HV, he tino pai te ātete ki te kakahu, ā, he whatunga o ngā kapiti moroiti e whakawhiti ana, e pai ana mō te rokiroki hinu whakahinuhinu. Mowhiti whakapūkara: Mā te maimoatanga matū, ka hangaia he paparanga kiriata whakapūkara ki te mata o te mowhiti piston, e whai pānga ārai-waikura ana ki te hua, ā, ka whakapai ake hoki i te mahi oma-roto tuatahi o te mowhiti. Mowhiti whakapūkara: I raro i te āhua o te pāmahana teitei me te kaha o te whakapūkara, ka hangaia he kiriata waikura ki te mata o te rauemi maitai, he ātete ki te waikura, he whakapūkara ārai-waku, ā, he āhua pai. He PVD me ētahi atu.

e ai ki te mahi

E rua ngā momo mowhiti piston: te mowhiti hau me te mowhiti hinu. Ko te mahi a te mowhiti hau he whakarite i te hiri i waenganui i te piston me te rango. Ka ārai i te hau pāmahana teitei me te pēhanga teitei i roto i te rango kei turuturu ki roto i te pouaka crank i roto i te nui, ā, i te wa ano ka kawe i te nuinga o te wera mai i te tihi o te piston ki te pakitara rango, ka tangohia atu e te wai whakamatao, e te hau rānei.

Ka whakamahia te mowhiti hinu hei waru i te hinu taikaha ki te pakitara o te rango, hei pani hoki i tētahi kiriata hinu ōrite ki te pakitara o te rango, e kore e ārai noa i te hinu kei uru ki te rango, kei wera hoki, engari ka whakaiti hoki i te pakaru me te haehae o te piston, te mowhiti piston me te rango. ātete ki te waku. [1]

whakamahinga

Te tautuhi pai, te tautuhi kino rānei

Kaua te mata mahi o te mowhiti piston e whai kikokore, karawarawa, me ngā kiriuhi, me maeneene te mata porotaka o waho me ngā mata pito o runga me raro, kaua te piko e neke ake i te 0.02-0.04 mm, ā, kaua te nui o te totohu paerewa o te mowhiti i roto i te awaawa e neke ake i te 0.15-0.25 mm, kia tutuki te ngāwari me te ātea o te mowhiti piston i ngā ture. Hei tāpiri, me tirotiro hoki te nui o te turuturu mārama o te mowhiti piston, arā, me whakatakoto te mowhiti piston ki roto i te rango, me whakatakoto he pū rama iti ki raro i te mowhiti piston, me whakatakoto he pereti whakamarumaru ki runga, kātahi ka tirohia te āputa turuturu mārama i waenganui i te mowhiti piston me te pakitara rango. Mā tēnei ka whakaatu mēnā he pai te pā o te mowhiti piston me te pakitara rango. I te nuinga o te wā, kaua te āputa turuturu mārama o te mowhiti piston e neke ake i te 0.03 mm ina inehia ki te ine matotoru. Kaua te roa o te āputa turuturu mārama tonu e neke atu i te 1/3 o te whānui o te rango, kaua hoki te roa o ētahi āputa turuturu mārama e neke atu i te 1/3 o te whānui o te rango, ā, kaua hoki te roa katoa o ētahi turuturu mārama e neke atu i te 1/2 o te whānui o te rango, ki te kore, me whakakapi.

ngā ture tohu

E ai ki te tohu mowhiti piston GB/T 1149.1-94, me tohu ngā mowhiti piston katoa e hiahia ana ki te ahunga tāutanga ki te taha o runga, arā, te taha e tata ana ki te rūma mura. Ko ngā mowhiti kua tohua ki te taha o runga ko: te mowhiti kōniko, te anga o roto, te mowhiti tēpu tapahi o waho, te mowhiti ihu, te mowhiti poro me te mowhiti hinu e hiahia ana ki te ahunga tāutanga, ā, kua tohua te taha o runga o te mowhiti.

Ngā Whakatūpato

Kia tūpato i te wā e tāuta ana i ngā mowhiti piston

1) Kua tāutahia te mowhiti piston ki roto i te raina rango, ā, me whai āputa tuwhera motuhake i te atanga.

2) Me tāuta te mowhiti piston ki runga i te piston, ā, i roto i te awaawa mowhiti, me whai āputa taha motuhake i te ahunga teitei.

3) Me tāuta te mowhiti whakakikoruatia ki te kōhao tuatahi, ā, kaua te whakatuwheratanga e anga atu ki te ahunga o te poka au hurihuri i te tihi o te piston.

4) Ka whakatōpūhia ngā whakatuwheratanga o ia mowhiti piston ki te 120°C, ā, kāore e whakaaetia kia anga atu ki te kōhao o te pine piston.

5) Mō ngā mowhiti piston he wāhanga whakarara, me whakarunga te mata whakarara i te wā e tāuta ana.

6) I te nuinga o te wā, ina tāutahia te mowhiti takahuri, me whakarunga te anga o te chamfer, te awaawa rānei; ina tāutahia te mowhiti ārai takahuri whaiti, me anga tonu te koeko ki runga.

7) I te wā e tāuta ana i te mowhiti whakakotahi, me tāuta tuatahi te mowhiti arai tuaka, kātahi ka tāuta te mowhiti papatahi me te mowhiti ngaru. Ka tāutahia he mowhiti papatahi ki te tihi me te raro o te mowhiti ngaru, ā, me wehe ngā whakatuwheratanga o ia mowhiti tetahi ki tetahi.

Mahi rauemi

1. Ātete kakahu

2. Te rokiroki hinu

3. Te pakeketanga

4. Ātete ki te waikura

5. Kaha

6. Ātete wera

7. Te ngāwari

8. Te mahi tapahi

I roto i ēnei, ko te ātete ki te kakahu me te ngāwari te mea nui. Ko ngā rauemi matua mō te mowhiti piston o te mīhini tīhiera kaha teitei ko te rino maka hina, te rino ngāwari, te rino maka koranu, me te rino maka karāhe vermicular.

Huinga tokotoko hono piston

Ko ngā kaupapa matua o te huihuinga o te rōpū tokotoko hononga piston a te kaihanga diesel ko ēnei e whai ake nei:

1. Pūwero parahi mō te tokotoko honohono. I te wā e tāuta ana i te pūwero parahi o te tokotoko honohono, he pai ake te whakamahi i te perehi, i te wīhi rānei, kaua e whiua ki te hama; me whakarite te kōhao hinu, te awaawa hinu rānei i runga i te pūwero parahi ki te kōhao hinu i runga i te tokotoko honohono kia pai ai te whakahinuhinu.

2. Huihuia te piston me te tokotoko hono. I te wā e huihui ana te piston me te tokotoko hono, kia tūpato ki tō rāua tūranga me te aronga.

Tuatoru, he mea āta tāuta te pine piston. He pai te urutau o te pine piston me te kōhao pine. I te wā e tāuta ana, tuatahi whakatakotoria te piston ki roto i te wai, ki te hinu rānei, ka whakamahana kia ōrite ki te 90°C~100°C. I muri i te tango atu, whakatakotoria te tokotoko here ki te tūranga tika i waenganui i ngā kōhao nohoanga o te pine piston, kātahi ka tāuta te pine piston kua pania ki te hinu ki te ahunga kua whakaritea. ki roto i te kōhao pine piston me te ringaringa parahi o te tokotoko hono.

Tuawhā, te tāutanga o te mowhiti piston. I te wā e tāuta ana i ngā mowhiti piston, kia aro ki te tūranga me te raupapa o ia mowhiti.

Tuarima, tāutahia te rōpū tokotoko hono.