Nyob rau hauv ib txwm ua haujlwm, lub mantle ntawm lub khob hliav qab crusher tig maj mam nyob rau hauv tib txoj kev raws li nws orbital txav. Qhov no tus kheej - kev sib hloov yog feem ntau tswj los ntawm cov khoom sib txhuam nyob rau hauv lub crushing chamber.
Txawm li cas los xij, nyob rau hauv qee qhov txawv txav, lub mantle yuav pib tig mus rau qhov sib txawv. Qhov tshwm sim no hu uacounter-spin. Nws tsis yog lub xeev ua haujlwm ib txwm muaj, tab sis ceeb toom ntawm kev tsis ruaj khov.
Nplooj ntawv no yog ib qho kev qhia txog kev tsim vaj tsev rau cov khoom siv ua haujlwm thiab kev tu pab pawg. Nws piav qhia ntawm lub txee- spin ntawm lub khob hliav qab crushers kom ntxaws los ntawm ntau yam: lub ntsiab lus thiab ua rau lub txee- kiv, qhov phom sij ntawm txee- kiv, thiab cov txheej txheem thiab cov tswv yim los txo qhov yuav tshwm sim ntawm qhov tshwm sim no.
Lub khob hliav qab crusher
1. Counter Spin yog dab tsi?
Counter spin txhais tau tias:
Lub mantle txuas ntxiv nws qhov qub orbital txav.
Tab sis nws tus kheej - kev taw qhia kev sib hloov yuav rov qab mus rau qhov kev taw qhia tsim.
Hauv cov ntsiab lus engineering, qhov no tshwm sim vim qhov sib npaug ntawm ob lub zog tawg:
| Torque Source | Lub ntsiab lus |
|---|---|
| M₁ | Kev sib txhuam torque los ntawm cov khoom ntawm lub mantle nto |
| M₂ | Tsav torque los ntawm eccentric bushing los ntawm roj zaj duab xis |
Txoj cai yooj yim los ntawm kev kawm thiab OEM cov ntaub ntawv:
Thaum twgM₁ < M₂, lub mantle poob nws tus kheej -locking mob thiab counter spin tshwm sim.
Qhov kev txhais no zoo ib yam nrog:
- Sandvik CH series phau ntawv
- Metso HP fault analysis
- Atlantis Xovxwm JIMEC 2017 kev tshawb fawb
2. Vim li cas Counter Spin tshwm sim?
(1) Tsawg Load lossis Empty Chamber
Qhov no yog qhov laj thawj tshaj plaws.
Thaum lub chamber yuav khoob tom qab:
- Tramp hlau tso
- Pub noj cuam tshuam
- Pib tsis muaj cov khoom siv
Kev sib txhuam torque los ntawm cov khoom (M₁) yuav luag ploj mus.
Tom qab ntawd lub eccentric torque (M₂) dominates thiab yuam lub mantle tig rov qab.
Qhov no yog vim li cas Sandvik, Metso, thiab Zenith txhua tus pom zoochoke noj.
DUMA kev soj ntsuam:
Choke pub tsis yog tsuas yog rau cov zis ntau dua, tab sis rau kev tswj cov torque tshuav thiab liner stability.
(2) Lubrication tsis ua haujlwm
Lubrication ncaj qha tswj lub torque hloov ntawm ncej thiab bushing.
Counter spin yuav zoo li thaum:
- Roj kub siab dhau lawm
- Roj viscosity poob
- Roj muaj hmoov av
- Roj zaj duab xis puas lawm
Hauv qhov no, kev sib txhuam torque ntawm ncej thiab bushing yuav tsis ruaj khov, ua rau M₂ nce dheev.
Cov txheej txheem no tau piav qhia meej hauv Metso HP phau ntawv qhia kev txhaum thiab Pob Zeb Machinery cov lus qhia.
(3) Mechanical Clearance thiab Hnav
Mechanical hnav kuj rhuav tshem torque tshuav nyiaj li cas:
- Ntau lub ntsiab ncej clearance
- Hnav spherical bearing
- Eccentric bushing hnav
- Lub rooj zaum tsis zoo
Tag nrho cov no hloov qhov chaw nruab nrab ntawm kev sib hloov thiab tsim tsis ruaj khov torque faib.
Qhov no pom zoo nrog:
- Telsmith Titan phau ntawv tsim
- Suav phau ntawv journal "Metallurgical Equipment Maintenance"
3. Qhov kev puas tsuaj dab tsi tuaj yeem tiv thaiv kev sib tsoo?
Counter spin feem ntau ua rau cov saw tsis ua haujlwm:
1-Liner txawv txav
Mantle nto ua overheated thiab thins sai heev.
2-Bronze bushing overheating
Kev sib txhuam ntau dhau ua rau roj carbonization thiab bushing qaug dab peg.
3- Muaj zog vibration
Kev txawv txav tsis zoo ua rau tus ncej thiab kis tau tus mob.
4-Anti-spin ntaus ntawv overload
Mechanical pawls lossis hydraulic dampers raug kev qaug zog ntxov ntxov.
Cov txiaj ntsig no tau ua tiav nrog Sandvik thiab Metso cov ntaub ntawv tsis ua haujlwm.
4. Yuav ua li cas DUMA pab txo Counter Spin Risk (Los ntawm Liner Perspective)
Txawm hais tias counter spin feem ntau yog qhov teeb meem ntawm lub tshuab, cov kab ntawv zoo muaj zog cuam tshuam rau lub zog ruaj khov.
Precision zaum
DUMA mantles yog tag nrho machined ntawm qhov chaw zaum kom paub meej:
- Zero gap installation
- Uniform load faib
- Tsis muaj micro- txav thaum ua haujlwm
Qhov no txo cov torque ntxiv los ntawm liner looseness.
Ruaj khov Manganese Alloy
DUMA sivMn18Cr2 thiab Mn22Cr2qib:
- High cuam tshuam toughness
- Muaj zog ua hauj lwm hardening muaj peev xwm
- Kev sib txhuam coefficient ruaj khov thaum hnav
Qhov no phim cov kev tshawb fawb kev tshawb fawb qhia tias liner sib txhuam coefficient ncaj qha cuam tshuam rau M₁ torque stability.
Kev kho cua sov
Dej Toughening Thaum tshav kub kub kho
DUMA siv cov tshuaj tswj kev kho mob thiab quenching kom ua tiav:
- Ntshiab austenitic qauv
- Uniform grain loj
- Tsis muaj nkig carbide tes hauj lwm
Qhov no ua kom muaj kev coj tus cwj pwm zoo ib yam thoob plaws tag nrho cov kab hauv qab, tiv thaiv tsis sib xws torque faib.
5. Phau Ntawv Qhia Txog Kev Ua Haujlwm
Raws li OEM thiab cov ntaub ntawv siv kev lag luam, kev pom zoo ua:
- Khaws choke pub thaum twg los tau
- Saib xyuas kev tiv thaiv -spin los ua ke mob
- Tswj lubrication roj kub thiab huv
- Tshawb xyuas cov ncej tshem tawm thaum kho
- Xyuas kom lub liner zaum saum npoo yog huv si thiab muaj kev txhawb nqa nrog kev sib txuas
- Tsis txhob ntuav chamber tig
Xaus
Counter spin tsis yog ib qho xwm txheej random. Nws yog qhov tshwm sim ncaj qha ntawm torque imbalance tshwm sim los ntawm kev thauj khoom qis, lubrication tsis ua haujlwm, lossis kev siv tshuab.
Tiv thaiv nws yuav tsum tau:
- Kev ua haujlwm raug
- lubrication kom raug
- Zoo mechanical mob
- Thiab ruaj khov, precisely haum liners
DUMA tsom rua kev muab siab -precision, metallurgically ruaj khov mantles thiab concaves los pab tswj lub zog sib npaug thiab tiv thaiv crusher stability ntawm sab liner.
