Riveted kev sib txuas: qhov zoo thiab qhov tsis zoo
Riveted kev sib txuas: qhov zoo thiab qhov tsis zoo

Video: Riveted kev sib txuas: qhov zoo thiab qhov tsis zoo

Video: Riveted kev sib txuas: qhov zoo thiab qhov tsis zoo
Video: KUV YOG NEB IB TUS NTXHAIS QHUA by Maiv xis Xyooj - Nkauj tawm tshiab | OFFICIAL MV 2024, Hlis ntuj nqeg
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Riveted pob qij txha yog tsim los ntawm qhov tshwj xeeb. Xws li daim ntawv cog lus ruaj khov yog qhov nyuaj rau kev sib cais. Rivets lawv tus kheej yog ua los ntawm cov khoom yas.

Kev tsim kho

Riveted kev sib txuas muaj peb yam:

  • ob ntu txuas;
  • rivet.

Lub caij kawg yog muab tso rau hauv qhov tshwj xeeb, uas nyob ntawm cov npoo ntawm cov khoom yuav tsum tau koom nrog.

rivet kev sib txuas
rivet kev sib txuas

Lub rivet tuav ib feem ntawm txoj haujlwm xav tau. Nyob rau hauv cov ntaub ntawv no, kho lub caij muaj cov qauv hauv qab no:

  • cev;
  • rod;
  • lub taub hau qiv nyiaj - pab tsim cov khoom lag luam yav tom ntej;
  • kaw lub taub hau - tsim nyob rau hauv tus txheej txheem ntawm kev txuas ob lub ntsiab.

Ntau tus rivets tau siv los txhawm rau qhov loj. Hauv qhov no, qhov sib koom ua tiav yuav raug hu ua rivet joint.

thaj chaw thov

Ua ntej qhov tshwm sim ntawm kev vuam zoo, riveting ntawm qhov chaw tau dav. Nws yog tam sim no siv nyob rau hauv qee qhov chaw ntawm kev siv tshuab. Riveted pob qij txha ntawm qhov chaw yog siv nyob rau hauv kev tsim kho ntawm aircraft, ships, submarines, raws li zoo raws li rau ntau yam high-precision instruments. Tsis tas li ntawd, rivets yog siv thaum txuas cov khoom hauv tsev, xws li I-beam, channel, kaum.

riveting qhov chaw
riveting qhov chaw

Lawv pab tiv thaiv kev vibration sib txawv. Rivet pob qij txha yog siv los ua ke ntau hom khoom. Piv txwv li, rau kev sib txuas cam khwb cia hlau alloy khoom rau txhuas ntawv.

Riveted pob qij txha. Qhov zoo thiab qhov tsis zoo ntawm txoj kev sib khi

Ntawm qhov zoo yog:

  • simple thev naus laus zis;
  • muaj peev xwm koom nrog cov hlau tsis sib xws;
  • kev sib txuas siab;
  • resists kev vibration thiab shock loads.

Txawm li cas los xij, zoo li txhua qhov kev sib txuas, muaj qee qhov tsis zoo, ntawm cov hauv qab no:

  • txhawm rau tsim cov rivet fastening, koj yuav tsum siv nyiaj ntau ntawm cov hlau;
  • xav tau tus nqi ua haujlwm tseem ceeb;
  • siab nqi;
  • Riveted kev sib txuas tuaj yeem raug rhuav tshem vim qhov tsis ncaj ncees lawm txoj kab uas hla ntawm lub qhov uas nyob ntawm cov npoo ntawm cov khoom;
  • thaum lub sijhawm ua haujlwm, qhov nruj ntawm kev sib txuas txo qis.

Nyob ntawm rivet pob qij txhantau heev, txij li lawv txhua tus yog siv rau hauv ib qho kev lag luam tshwj xeeb.

Riveted kev sib txuas: kev faib tawm

hom kev sib txuas no tau muab faib raws li hauv qab no:

1. Lub hom phiaj ua haujlwm. Ntawm cov kev sib txuas, muaj peb yam tseem ceeb: cov muaj zog yog siv los tuav cov khoom loj; ntom, uas muab nruj; ua ke - ua ob txoj haujlwm.

2. Kev tsim qauv ntawm seam. Txoj hlua txuas tuaj yeem sib tshooj thiab pob tw.

riveted pob qij txha ntawm qhov chaw yog siv
riveted pob qij txha ntawm qhov chaw yog siv

Qhov kawg saib yog ua los ntawm kev siv ib lossis ntau dua.

3. Tus naj npawb ntawm cov hlais. Qhov ntsuas no qhia cov naj npawb ntawm cov ntu dhau los ntawm ib qho rivet nyob rau hauv qhov kev txiav txim ntawm ib qho load. Raws li txoj cai no, rivet pob qij txha yog ib leeg-thiab ntau-shear. Lawv tus lej tsis txwv.

4. Tus naj npawb ntawm rivet kab. Muaj peev xwm muaj ib, ob, peb, thiab lwm yam. Tus lej tsis txwv.

Raws li tau hais ua ntej, cov pob qij txha rivet tau siv ntau yam kev lag luam. Yog li ntawd, muaj ntau hom rivets. Ntxiv nrog rau cov ntsuas saum toj no, cov hom no raug cais raws li cov duab ntawm lub taub hau embedded:

  • semicircular;
  • secret;
  • semi-hidden;
  • cylindrical.

Qab

Cov hom hauv qab no yog qhov txawv ntawm nws cov duab:

  • solid;
  • hollow (muaj dhau lub qhov);
  • semi-hollow - tus pas nrig muab faib ua ob ntu: ib qho yog khov thiab lwm qhov yog hollow.

Basiccov ntaub ntawv hais txog fasteners thiab cov khoom muaj nyob rau hauv cov ntaub ntawv tswj hwm.

rivet pob qij txha zoo thiab qhov tsis zoo
rivet pob qij txha zoo thiab qhov tsis zoo

GOST 10303-68 characterizing rivet pob qij txha suav nrog cov qauv loj ntawm cov rivet. Nws txoj kab uas hla, qhov ntev ntawm lub cev thiab tus pas nrig, nrog rau hom lub taub hau tau sau npe ntawm no.

khoom tsim khoom

Cov ntaub ntawv tseem ceeb rau kev tsim cov pob qij txha rivet yog cov hlau tsis muaj cov pa roj carbon tsawg, cov hlau tsis muaj hlau, thiab qee cov alloys. Txawm li cas los xij, muaj cov cai nruj rau txhua yam khoom siv:

  • Txhawm rau txhim kho cov khoom lag luam, cov khoom yuav tsum yog yas.
  • Cov khoom siv yuav tsum muaj qhov ntsuas kub ib yam. Yog tias qhov kev xav tau no tsis tau ua tiav, qhov hluav taws xob ntxiv yuav tshwm sim thaum hloov pauv kub. Thaum kawg cov pob qij txha rivet yuav ua tsis tiav.
  • Cov khoom yuav tsum yog homogeneous. Qhov no yog ua kom cov galvanic tam sim no tsis rhuav tshem cov kev sib txuas. Piv txwv li, steel rivets yog siv los fasten steel qhov chaw, tooj liab ntsiab yog siv los fasten tooj liab ntsiab, thiab lwm yam.

Loads

Qhov tso cai tau raug txiav txim siab los ntawm ntau qhov kev sim thiab kev sim. Tsis tas li ntawd, lawv tau ua tib zoo kawm los ntawm cov kws tshaj lij.

rivet pob qij txha yog siv rau
rivet pob qij txha yog siv rau

Muaj ntau hom kev thauj khoom: shear stress, nro thiab shear stress. Rau txhua hom hlau, cov ntsuas no txawv ntawm ib leeg.

Thaum siv ob tus tswvcuab me me, tso caitensile load yuav tsum tsis pub tshaj 150 MPa, thiab lub shear stress yuav tsum tsis txhob tshaj 100 MPa.

Nws tsim nyog sau cia tias cov ntsuas no tau tsim tsis yog rau kev sib txuas, tab sis kuj rau rivets.

rivet pob qij txha gost
rivet pob qij txha gost

Lawv muaj lawv tus kheej tso cai thauj khoom. Piv txwv li, rau cov khoom siv roj carbon steel, qhov kev ntxhov siab ntawm shear yuav tsum tsis pub tshaj 100 MPa. Kev tawg, nws tsis ntau tshaj 300 MPa.

Tso cai thauj khoom rau cov khoom nyob ntawm txoj kev ua qhov hauv cov khoom.

rivet pob qij txha classification
rivet pob qij txha classification

Yog tias muaj kev ntxhov siab ntau, qhov yuav tsum tau ua los ntawm kev drilling.

Yog tias muaj kev cuam tshuam ib ntus ntawm cov khoom, qhov kev tso cai tau raug txo los ntawm 20%. Qee zaum, xws li txias riveting, daim duab no raug txo los ntawm 30%.

Cov lus qhia rau kev tsim cov rivet pob qij txha

Cov kev cai tsim kev sib txuas no tau tsim los ntawm cov kws tshaj lij tsim nyog. Lawv tau txheeb xyuas los ntawm ntau xyoo ntawm kev sim hauv chav kuaj, nrog rau thaum lub sijhawm ua haujlwm ntawm kev sib txuas. Yog li, ntawm lawv yog:

1. Fasteners thiab rivets yuav tsum tau ua los ntawm cov khoom muaj zog homogeneous.

2. Rivets yuav tsum muab me me ntawm loosening ntawm qhov chaw. Rau qhov no, raws li txoj cai, kuv siv chess txoj kev kho.

3. Qhov tshwm sim ntawm kev khoov ntawm cov ntsiab lus tseem ceeb yuav tsum zam. Txhawm rau ua qhov no, rivets tau muab tso rau hauv axis uashla dhau qhov nruab nrab ntawm cov khoom sib txuas.

4. Cov ntsiab lus uas muaj qhov sib txawv tsis tuaj yeem siv rau ntawm ib qho kev sib koom ua ke.

5. Txhawm rau kom tsis txhob sib hloov ntawm cov khoom yuav tsum tau koom nrog, tus naj npawb ntawm rivets yuav tsum yog tsawg kawg yog ob.

6. Tus naj npawb ntawm cov ntsiab lus ntawm ib sab yuav tsum tsis pub tshaj peb. Nrog rau qhov nce ntawm qhov ntsuas no, lub zog ntawm cov khoom yuav txo qis.

7. Lub pob tw pob tw yuav tsum tau rivets ntau dua li lub puab tsaig.

8. Nws yog tsim nyog los xyuas kom meej nruj. Txhawm rau ua qhov no, cov kua nplaum tshwj xeeb lossis xim pleev xim rau ntawm cov ntsiab lus rivet, uas tau txais los ntawm cov nplaim hluav taws.

9. Tom qab kho cov khoom, lawv kos.

10. Tus naj npawb ntawm rivets nyob ntawm tus qauv tsim ntawm kev sib txuas rivet.

Kev sib txuas zoo li no tsis muaj ntau niaj hnub no. Nws yuav luag tag hloov los ntawm vuam.

riveted pob qij txha ntawm qhov chaw yog siv
riveted pob qij txha ntawm qhov chaw yog siv

Txawm li cas los xij, nws yog siv los tsim cov dav hlau, nkoj, thiab qee yam cuab yeej. Cov txiaj ntsig tseem ceeb yog lub zog siab ntawm kev sib koom ua tiav thiab kev teeb tsa yooj yim. Txawm li cas los xij, txhawm rau siv nws, koj yuav tsum siv nyiaj ntau ntawm cov hlau. Yog li ntawd, hom kev sib txuas no yog kim thiab siv zog ua haujlwm.

Zaj lus

Muaj ntau cov rivet pob qij txha.

rivet pob qij txha yog siv rau
rivet pob qij txha yog siv rau

Cov hom tseem ceeb thiab cov qauv loj ntawm rivets tau teev nyob rau hauv cov ntaub ntawv teev tseg. Hom lub ntsiab nyob ntawmkev lag luam siv. Txhim kho lawv yuav tsum tau ua kom tiav. Qhov sib txawv me ntsis ntawm txoj kab uas hla ntawm lub qhov tuaj yeem ua rau kev puas tsuaj ntawm tag nrho cov khoom.

rivet pob qij txha zoo thiab qhov tsis zoo
rivet pob qij txha zoo thiab qhov tsis zoo

Nyob hauv lawv lub chaw tsim khoom, nws yog ib qho tsim nyog yuav tsum ua raws li qee cov cai uas tau kos los ntawm cov kws tshaj lij raws li kev suav ntau xyoo thiab kev sim.

Yog li, peb tau txiav txim siab cov yam ntxwv ntawm hom kev sib txuas no.

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