Ib Lub Tswv Yim Txog Kev Txawj Ntse
1. Qhov Yuav Tsum Tau Ua Kom Ruaj Khov
Kev ntseeg tau yog qhov tseem ceeb hauv kev khawb av longwall, qhov twg AFC-cuam tshuam kev ua tsis tiav yog qhov ua rau lub sijhawm tsis tau npaj tseg, suav txog kwv yees li 27% ntawm tag nrho cov kev tsim khoom nres. Lub hauv paus ntawm qhov kev sib tw no yog xaiv cov saw hlau kom raug rau daim ntawv thov. Cov saw hlau ua haujlwm nyob rau hauv kev thauj khoom hnyav, kev hnav abrasive, thiab cov xwm txheej corrosive, ua rau kev ruaj khov yog ib qho haujlwm ntawm kev tsim qauv, cov khoom siv, thiab ib puag ncig ua haujlwm. Daim ntawv no tshuaj xyuas cov yam ntxwv ruaj khov ntawm cov hom saw hlau loj kom qhia txog kev yuav khoom zoo dua thiab kev txiav txim siab ua haujlwm.
Cov saw hlau rau cov longwall coal minesiv rau hauv Armored Face Conveyors (AFCs). Raws li kev lag luam hloov zuj zus, cov tsoosCov saw hlau txuas puag ncig (DIN 22252)tau tsim los kom hloov pauv los ntawm cov kev xaiv niaj hnub zoo liCov saw hlau txuas tiaj tiaj (DIN 22255)thiab cov qauv tsim "Ultra-Flat" lossis "Solid Profile". Lawv sib txawv ntawm cov txheej txheem ua tsis tiav, cov txheej txheem ua haujlwm, thiab tag nrho lub neej voj voog, yog li ua rau nws tseem ceeb rau kev xaiv cov saw hlau zoo tshaj plaws hauv kev ua haujlwm ntev.
2. Kev Sib Piv Tsim Qauv Saw: Geometry thiab Cov Txheej Txheem Ua Tsis Tau Zoo
Lub geometry tseem ceeb ntawm ib txoj saw hlau ncaj qha qhia nws qhov kev faib tawm ntawm kev ntxhov siab, tus qauv hnav, thiab hom kev ua tsis tiav. Lub rooj hauv qab no piav qhia txog cov yam ntxwv tseem ceeb:
| Tus Qauv Tsim | Cov saw hlau sib txuas puag ncig (DIN 22252) | Cov Saw Txuas Tiaj Tus Qauv (DIN 22255) | Cov saw hlau tiaj tiaj / khoom profile siab heev |
| Tus Qauv Tseem Ceeb | DIN 22252 | DIN 22255 | Cov qauv tsim tshwj xeeb (piv txwv li, "Master Profile") |
| Lub Zog Tseem Ceeb | Tsim qauv zoo sib xws, yoog tau yooj yim; muaj zog heev los nqus cov kev cuam tshuam. | Qhov siab qis dua tag nrho ua rau lub lauj kaub txo qis thiab muaj peev xwm thauj khoom ntau dua. | Qhov chaw sib cuag siab tshaj plaws txo qhov siab ntawm lub tshuab thiab kev hnav; geometry tiv thaiv kev jamming. |
| Qhov Tsis Muaj Zog Tseem Ceeb | Thaj chaw sib txuas me me ua rau muaj kev ntxhov siab heev thiab kev hnav hauv zos. | Kev ntxhov siab sib sau ua ke ntawm lub xub pwg txuas thiab cov hniav txuas; cov khoom txuas yog cov chaw tsis muaj zog tseem ceeb. | Kev tsim khoom nyuaj dua; tej zaum yuav xav tau cov sprockets lossis cov khoom tshwj xeeb. |
| Hom Kev Hnav/Kev Ua Tsis Tau Zoo Thawj Zaug | Kev hnav khaub ncaws tsis zoo ntawm cov qhov me me, ua rau poob ntawm qhov sib tshuam thiab "kev hnav-qaug zog" voj voog. | Kev tawg ntawm qhov qaug zog pib ntawm thaj chaw muaj kev ntxhov siab siab (cov khoom sib txuas, xub pwg nyom) nyob rau hauv lub nra hnyav cyclic. | Kev txo qis kev hnav dav dav; tsim los txo qhov kev sib txhuam martensite thiab elongation. |
3. Cov Yam Tseem Ceeb Uas Ua Tau Ntev Dhau Ntawm Kev Tsim Qauv Yooj Yim
Kev ruaj khov tsis yog txhais los ntawm cov duab ntawm qhov txuas xwb. Muaj ntau yam uas cuam tshuam rau ib leeg ua lub luag haujlwm tseem ceeb:
- Kev Tshawb Fawb Txog Khoom Siv thiab Metallurgy: Kev nce qib hauv cov khoom sib xyaw (Cr, Ni, Mn, Mo) thiab kev kho cua sov zoo tshaj plaws (quenching thiab tempering) tuaj yeem ua rau kev tiv taus hnav zoo dua 10-25%. Cov hlau zoo xws li 23MnNiCrMo54 yog siv los ua kom muaj kev thauj khoom tawg zoo dua thiab lub neej qaug zog.
- Kev Ntseeg Tau ntawm Cov Txuas: Rau cov kab ke sib txuas tiaj tiaj, cov txuas feem ntau yog qhov txuas tsis muaj zog tshaj plaws. Kev ua kom zoo dua ntawm cov hniav txuas rau kev faib tawm kev ntxhov siab yog qhov tseem ceeb rau lub neej tag nrho ntawm lub kaw lus.
- Kev Tiv Thaiv Kev Xeb: Kev xeb ua rau kev hnav thiab qaug zog sai dua. Cov txheej txheem tiv thaiv siab heev, xws li zinc-nickel plating, tuaj yeem ntev lub sijhawm-rau-xeb liab ntau zaus piv rau cov xim tiav ib txwm muaj, ncaj qha txhim kho lub neej ntawm cov saw hlau hauv cov xwm txheej ntub dej.
- Kev Xyaum Ua Haujlwm: Kev rub kom nruj yog qhov tseem ceeb heev. Kev rub tsis nruj ua rau lub log tsis nruj thiab tsis sib zog, thaum kev rub ntau dhau ua rau lub log hnav thiab qaug zog sai dua. Kev tshuaj xyuas lub sprocket tsis tu ncua kuj tseem ceeb heev, vim tias cov sprocket uas hnav lawm yuav ua rau puas tsuaj rau txhua txoj saw ua ntej lub sijhawm.
4. Kev Xaiv Qauv: Sib phim cov saw hlau rau daim ntawv thov
Tsis muaj txoj saw hlau uas "zoo tag nrho" thoob plaws ntiaj teb, tab sis muaj txoj saw hlau zoo tshaj plaws rau cov xwm txheej tshwj xeeb. Kev xaiv yuav tsum yog kev koom tes ntawm lub qhov av thiab cov chaw tsim khoom.
- XaivCov Saw Txuas Puag Ncig (DIN 22252)thaum twg: Qhov tseem ceeb tshaj plaws yog qhov yooj ywm tshaj plaws thiab kev nqus tau qhov cuam tshuam hauv cov xwm txheej nyuaj thiab tsis sib npaug. Lawv cov qauv tsim sib npaug zam txim rau cov ntawv thov uas yuav tshwm sim tsis sib xws lossis ntswj.
- Xaiv Tus QauvCov Saw Txuas Tiaj (DIN 22255)thaum twg: Muaj kev txwv qhov siab ntawm lub tshuab thauj khoom, thiab xav tau lub lauj kaub qis dua kom nce qhov muaj peev xwm. Lawv yog cov khoom siv kho dua tshiab rau cov kab sib txuas puag ncig yam tsis muaj kev hloov pauv loj ntawm cov kab lauj kaub.
- Xaiv Cov Chains "Ultra-Flat" lossis "Solid Profile" thaum: Lub hom phiaj ua haujlwm yog kom ua kom lub neej ua haujlwm ntev tshaj plaws thiab txo qhov tsis ua haujlwm hauv cov ntawv thov muaj zog thiab muaj zog. Lawv cov qauv geometry tsim los daws cov teeb meem tseem ceeb ntawm kev hnav thiab kev ua tsis tiav ntawm cov saw hlau.
5. Xaus Lus
Kev hloov pauv ntawm cov txuas puag ncig mus rau cov qauv tsim tiaj tiaj sawv cev rau kev hloov pauv ntawm kev tawv dav dav mus rau kev ua haujlwm hnav zoo tshaj plaws. Thaum cov txuas puag ncig muab kev ywj pheej, cov saw hlau tiaj tiaj thiab ultra-flat muab cov kev daws teeb meem tsim los rau kev muaj peev xwm ntau dua thiab lub neej ntev dua. Qhov kev xaiv ruaj khov tshaj plaws yog kev txiav txim siab ntawm cov txheej txheem uas xav txog geometry, cov khoom siv zoo, kev tsim cov khoom sib txuas, kev tiv thaiv tiav, thiab - qhov tseem ceeb - kev saib xyuas kev ua haujlwm kom zoo. Thaum kawg, kev nqis peev rau hauv cov saw hlau uas "haum rau cov xwm txheej tshwj xeeb" thiab txhawb nqa los ntawm kev koom tes ntawm cov kws tshaj lij yog lub tswv yim zoo tshaj plaws rau kev ua kom lub sijhawm ua haujlwm ntev thiab kev tsim khoom ntau tshaj plaws.
Lub sijhawm tshaj tawm: Lub Ob Hlis-10-2026
