Trione Bits: HDD Qhia vs. Vertical Shaft Differences
Nyob rau hauv lub tshav pob ntawm cov khoom siv drilling, cov menyuam lub khob hliav qab cov khoom yog cov khoom tseem ceeb rau pob zeb tawg thiab drilling. Txawm li cas los xij, txawm hais tias ob qho tib si yog cov menyuam lub khob hliav qab, cov kev taw qhia rau cov menyuam lub khob hliav qab tshwj xeeb tsim rau Kab rov tav Directional Drilling (HDD) thiab cov siv rau ntsug ncej ( ntsug zoo / mining ncej) kev tsim kho muaj ntau yam sib txawv hauv cov qauv tsim thiab cov tsos vim qhov sib txawv tseem ceeb hauv lawv cov kev ua haujlwm tau zoo. Rau cov kws kho mob thiab cov neeg yuav khoom, kev nkag siab txog qhov sib txawv no tsis tsuas yog ua rau kev xaiv ceev kom tsis txhob muaj kev cuam tshuam, tab sis kuj tseem ua rau kev nkag siab ntawm kev lag luam cov ntsiab lus tseem ceeb ntawm "cov cuab yeej hloov kho rau kev ua haujlwm". Niaj hnub no, peb yuav rhuav tshem qhov sib txawv ntawm ob los ntawm ob qhov tseem ceeb ntawm cov qauv thiab cov tsos.
I. HDD Guided Roller Cone Bits: Yug rau "Flexible Steering", Compact hauv Structure & Appearance
Qhov tseem ceeb ntawm HDD kev tsim kho yog "precision steering thiab nkhaus drilling". Piv txwv li, nyob rau hauv municipal pipeline tso, lubxyaum me ntsisyuav tsum tau bypass underground obstacles thiab ua raws li tus tsim trajectory. Qhov kev ua haujlwm no txiav txim siab tias cov qauv thiab cov tsos ntawm cov menyuam lub khob hliav qab cov khoom yuav tsum yog nyob rau hauv ib ncig ntawm "kev hloov pauv thiab kev tswj hwm".
Nyob rau hauv cov nqe lus ntawm cov qauv, cov qauv tsim tseem ceeb ntawm kev coj cov menyuam lub khob hliav qab yog "compactness + steering empowerment". Feem ntau txais yuav 3-roller cone layout, tab sis cov menyuam lub khob hliav qab tau npaj ntau dua thiab compactly tag nrho. Qee cov qauv yog tsim los nrog eccentric roller cone layout, uas tuaj yeem yooj yim tsim lub zog sab nraud thaum sib txuam nrog lub kauj tsav kom ua tiav txoj kev zoo-tuning. Lub bearing system yog nws cov tub ntxhais quab yuam-cov kabmob tivthaiv, txais yuav cov kabmob sab nraud-tiv thaiv cov kabmob uas muaj qhov ntev axial ntev me ntsis thiab cov kab me me sab nraud, uas tuaj yeem tiv nrog cov khoom sib hloov uas tshwm sim los ntawm kev ua haujlwm ntau zaus thiab tsis txhob muaj cov kabmob tawg lossis jamming. Qhov tseem ceeb tshaj plaws, 1-2 daim ntawv qhia (cov lus qhia tis) tau muab tso rau ntawm sab lossis sab nraub qaum ntawm lub laum me ntsis, ua los ntawm cov cemented carbide uas tsis yog tsuas yog haum rau lub qhov phab ntsa kom ruaj khov, tab sis kuj txo qis kev co thaum lub sij hawm drilling. Cov hniav tsim tsom rau "kev hnav tsis kam thiab yoog raws", feem ntau luv luv thiab tuabcov hniav(steel teeth) or small-sized inserted teeth, with a tooth height of 3-8mm and dense tooth spacing, suitable for scraping and grinding formations such as clay, sand, weathered rock. Txoj kev tsim channel ntws kuj yog qhov yooj yim heev, nrog 1-2 lub qhov muag loj-ntev dej, muab qhov tseem ceeb rau kev ua kom cov kab txiav tawm thiab tiv thaiv kev thaiv.
Nyob rau hauv cov nqe lus ntawm cov tsos, coj cov menyuam lub khob hliav qab cov khoom yog heev recognizable. Zuag qhia tag nrho, lawv nyob rau hauv cov duab ntawm ib tug "slender pas nrig" nrog ib tug loj piv ntawm tag nrho cov ntev mus rau txoj kab uas hla, thiab cov kab uas hla yog 150-400 hli. Cov duab no tso cai rau lub laum me ntsis tig flexibly nyob rau hauv nkhaus qhov seem yam tsis muaj jamming. Lub protruding qhia daim hlau nyob rau sab yog cov feem ntau intuitive identifier; lub laum me ntsis kawg lub ntsej muag yog tiaj tus, tsis muaj qhov pom tseeb nozzle qhov, tsuas yog yooj yim txaus channel grooves. Qhov saum npoo feem ntau yog txau nrog lub teeb grey lossis daj hnav-resistant txheej, uas yog nyias. Cov khoom cim qhia kom meej meej qhia "hom kev taw qhia", "HDD tshwj xeeb siv" thiab curvature vojvoog thiab lwm yam tsis ua rau kev txheeb xyuas ceev.
II. Vertical Shaft Roller Cone Bits: Yug rau "High-Pressure Rock Breaking", Thick thiab Solid nyob rau hauv cov qauv & tsos
Cov ntsiab lus tseem ceeb ntawm kev tsim cov ncej ntsug (xws li mining shafts thiab cov roj zoo ntsug qhov dej) yog "cov pob zeb tawg tau zoo thiab cov kabmob siab drilling siab". Lub drilling trajectory yog feem ntau ntsug, thiab qhov yuav tsum tau rau lub kauj yooj yooj yim yog kuj tsawg. Qhov kev ua haujlwm no txiav txim siab tias cov qauv thiab cov tsos ntawm ntsug ncej rau lub khob hliav qab cov khoom yuav tsum tau ua nyob ib ncig ntawm "sturdiness thiab efficiency".
Nyob rau hauv cov nqe lus ntawm cov qauv, lub hauv paus tsim ntawm ntsug ncej rau lub khob hliav qab cov khoom yog "lub zog load-bearing + kev txhim kho pob zeb-tawg muaj peev xwm". Feem ntau txais yuav 3 lub khob hliav qab (cov qauv loj-ntev tuaj yeem ncav cuag 4 lub khob hliav qab), nrog rau cov menyuam lub cones teem rau hauv qhov nruab nrab symmetrical layout. Covroller conesmuaj ib txoj kab uas hla loj dua thiab dav dua cov hniav nplhaib dav, thiab cov menyuam lub khob hliav qab ncej muaj siab rigidity, uas muaj peev xwm dais kaum tons ntawm axial drilling siab. Cov kabmob muaj cov qauv sib xyaw ntawm cov kabmob hnyav hnyav + cov kabmob ntab, nrog cov tuab radial tuab thiab muaj kev cuam tshuam zoo heev, uas tuaj yeem tiv taus kev vibrations hnyav thaum lub pob zeb tawg. Qhov sib txawv loj tshaj plaws los ntawm kev cojlaum khoomyog qhov tsis muaj tus qauv tswj; lub laum me ntsis lub cev yog ntawm cov khoom tsim thiab tuab, tsom tag nrho ntawm pob zeb tawg. Cov hniav muab faib ua milled hniav thiab loj-loj ntxig cov hniav. Cov hniav milled yog 10-15mm nyob rau hauv qhov siab nrog cov hniav ntse ntse, thiab cov hniav ntxig txais 8-12mm loj-grain cemented carbide, nrog ib tug conical los yog wedge-zoo li tus hniav profile, uas smashes nyuaj pob zeb los ntawm kev quab yuam. Kev tsim cov channel ntws yog qhov nyuaj dua, nrog 3-6 lub tshuab hluav taws xob siab faib rau ntawm lub ntsej muag kawg, uas tuaj yeem txau cov kua dej ua kom txias rau cov khoom txias thiab tso tawm cov txiav kom raws sijhawm.
Nyob rau hauv cov nqe lus ntawm cov tsos, thawj lub tswv yim ntawm ntsug ncej rau lub khob hliav qab cov khoom yog "luv, rog thiab ruaj khov", nrog ib tug me me piv ntawm tag nrho ntev mus rau txoj kab uas hla, thiab ib txoj kab uas hla ntawm 200-600mm los yog ntau tshaj. Cov qauv loj-ntev zoo ib yam li cov hlau tuab tuab, tag nrho ntawm kev nkag siab ntawm lub zog. Lub 3 lub khob hliav qab muaj qhov chaw nthuav dav loj, nrog cov hniav ntse thiab protruding, thiab ntau lub voj voog nozzle qhov ntawm lub ntsej muag kawg yog pom meej. Qee cov qauv tau nruab nrog lub kaus mom liab lossis dub kev thauj mus los. Qhov saum npoo yog txau nrog cov tuab tsaus grey lossis dub hnav-resistant txheej, uas yog cuam tshuam-resistant thiab corrosion-resistant. Cov cim khoom yuav qhia txog qhov tseem ceeb xws li "nce ncej siv tshwj xeeb", "hom pob zeb nyuaj" thiab "drilling siab theem", qhia txog nws cov khoom thauj khoom thiab pob zeb tawg.
Cov ntsiab lus tseem ceeb sib txawv: Cov xwm txheej ua haujlwm txiav txim siab daim ntawv
Cias muab, coj cov menyuam lub khob hliav qab cov khoom siv yog "cov kws tshaj lij kev tswj xyuas zoo", tsom rau kev tsav tsheb thiab kev quab yuam sab nraud hauv cov qauv, nrog lub ntsej muag zoo nkauj thiab cov ntawv qhia; ntsug shaft roller cone khoom yog "sturdy rock-breaking giants", tsom rau kev thauj khoom-cov kabmob thiab cov pob zeb tawg hauv cov qauv, nrog luv luv, rog tsos thiab ntau lub nozzles. Qhov sib txawv ntawm ob yog qhov tseem ceeb ntawm kev sib txawv ntawm cov khoom tsim los ntawm kev sib txawv hauv kev ua haujlwm drilling. Kev paub txog cov qauv thiab cov cim qhia pom zoo li no tuaj yeem ua rau kev tshuaj xyuas ntawm qhov chaw tsim kho, kev yuav khoom thiab kev xaiv, nrog rau kev paub txog kev lag luam nrov dua thiab raug.
TXOJ CAI TSHIAB
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