Lub braking system yog lub hauv paus lav rau kev nyab xeeb ntawm kev lag luam khoom siv, thiab kev ua haujlwm thiab kev pabcuam lub neej ntawm kev lag luam nres, raws li cov khoom tseem ceeb uas xa ncaj qha braking quab yuam, ncaj qha cuam tshuam rau kev ruaj ntseg, khoom siv kev ua haujlwm, thiab cov nqi kho. Cov brakes muaj dav siv hauv kev nqa cov tshuab, cov khoom siv mining, chaw nres nkoj thiab tshem tawm cov tshuab, cov khoom siv hlau thiab lwm yam haujlwm. Cov kev ua haujlwm yog qhov nyuaj thiab xav tau ntau dua li cov tsheb, suav nrog ntau yam xwm txheej huab cua xws li kev thauj khoom siab, siab zaus, siab kub, siab plua plav, corrosion, thiab lwm yam. Txhawm rau pab koj tswj cov kev hloov pauv ntawm cov hauv ob sab phlu, txo cov kev pheej hmoo ntawm kev nyab xeeb, thiab txhim kho cov nqi khiav lag luam thiab kev saib xyuas, tsab xov xwm no yuav muab cov ncauj lus kom ntxaws txog kev hloov cov qauv thiab kev tiv thaiv kev lag luam tseem ceeb hauv kev lag luam. kev nyab xeeb.
Ib. Kev nkag siab tseem ceeb: Kev hnav cov logic thiab muaj feem cuam tshuam ntawm kev lag luam nres tsheb
Lub hauv paus ntsiab lus ua haujlwm ntawm kev lag luam nres tsheb yog tsim kom muaj lub zog ntawm lub zog los ntawm kev sib txhuam nrog lub log nres (lossis nres discs), ua kom muaj kev nrawm nrawm, nres tsheb, lossis nres ntawm cov khoom siv. Nyob rau hauv kev lag luam scenarios, lub hauv ob sab phlu yuav tsum tau tiv thaiv loads thiab kev sib txhuam muaj zog nyob deb tshaj cov tsheb, thiab cov hnav ris tsho feem ntau cuam tshuam los ntawm plaub yam tseem ceeb: thawj,lub zog load. Lub brake hauv ob sab phlu ntawm cov cuab yeej hnyav xws li cranes thiab mining winches yuav tsum tau dais loads ntawm kaum mus rau pua pua tons, thiab hnav tus nqi nce exponentially nrog kev nce ntawm load; Qhov thib ob yogqhov zaus ntawm kev ua haujlwm. Cov cuab yeej siv nrawm nrawm xws li cov chaw nres nkoj cranes thiab cov khoom siv sib dhos ua ke muaj cov phaj hauv ob sab phlu uas nyob rau hauv ib qho kev sib txhuam ntawm lub sij hawm ntev, txo lawv txoj kev pab cuam lub neej; Thib peb,ib puag ncig tej yam kev mobxws li hmoov av los ntawm mines, kub kub hauv metallurgy, thiab ntsev tsuag corrosion nyob rau hauv cov chaw nres nkoj yuav ua rau kom cov laus thiab hnav cov ntaub ntawv hauv ob sab phlu; Qhov plaub yogcov qauv kev ua haujlwm. Kev ua txhaum cai xws li kev nres nres tam sim ntawd thiab kev ua haujlwm ntau dhau tuaj yeem ua rau hauv ob sab phlu tuaj yeem tiv taus siab heev nyob rau lub sijhawm luv luv, ua rau muaj qhov txawv txav thiab tsim kua muag. Yog li ntawd, cov qauv kev hloov pauv rau kev lag luam nres tsheb yuav tsum tau tsim los ntawm kev ua haujlwm tshwj xeeb thiab kev sib txawv.
2. Kev hloov cov txheej txheem nres hauv cov txheej txheem kev lag luam sib txawv
1. Heavy lifting machinery kev khiav hauj lwm tej yam kev mob: nruj tswj nyob rau hauv siab load
Hnyav lifting machinery, xws li choj cranes thiab ntauwd cranes, feem ntau yog siv nyob rau hauv Hoobkas hoisting, kev tsim kho thiab lwm yam scenarios. Lawv yuav tsum nqa cov khoom hnyav ntau dua 50 tons, thiab cov hauv ob sab phlu yuav tsum tiv taus lub zog loj ntawm lub sijhawm braking. Tus hnav ris tsho yog ceev ceev thiab hauv zos overload hnav yog nquag tshwm sim. Cov qauv hloov pauv rau hom kev ua haujlwm no yuav tsum tau ua kom muaj kev nruj siab tshaj plaws los ua kom tiav:
- Thickness standard: Thaum cov khoom siv sib txhuam thickness ntawm lub brake hauv ob sab phlu yog tsawg dua 50% ntawm qhov qub thickness (los yog tsawg dua 8 hli, qhov twg yog qhov qis dua), nws yuav tsum tau hloov tam sim ntawd. Rau cov khoom siv hnyav hnyav hnyav tshaj 100 tons, cov txheej txheem hloov pauv yuav tsum tau pib thaum lub thickness ntawm cov khoom sib txhuam yog tsawg dua 10 hli, thiab nws yog nruj me ntsis txwv tsis pub mus txuas ntxiv ua haujlwm hauv qab cov thickness tseem ceeb.
- Kev siv lub voj voog siv: Lub luag haujlwm hnyav- lub luag haujlwm nqa lub tshuab ua haujlwm nyob rau hauv qhov ntsuas ntsuas, thiab kev pabcuam lub neej ntawm lub tshuab nres tsheb feem ntau yog 6-12 lub hlis; Yog hais tias nquag overloaded (ntau tshaj qhov ntsuas load los ntawm ntau tshaj 10%), lub neej kev pab cuam yuav luv luv rau 3-6 lub hlis. Nws raug nquahu kom ua cov qauv tuab txhua 15 hnub thiab kev tshuaj xyuas txhua lub hlis.
- Cov teeb liab tshwj xeeb: Yog tias muaj "muffled suab" lossis cov cua kub tsis zoo ntawm lub log tsheb (qhov kub siab tshaj 150 degree) thaum lub sijhawm braking, lub braking stroke nce, los yog muaj me ntsis slippage (ntau tshaj 5mm / min) thaum hovering cov khoom hnyav, txawm tias lub thickness tsis ncav cuag tus nqi tseem ceeb, lub tshuab yuav tsum tau nres tam sim ntawd rau qhov tsis ua hauj lwm ntawm cov khoom siv.
2. Kev ua haujlwm ntawm cov khoom siv mining: ceeb toom ntxov nyob rau hauv cov plua plav siab thiab cuam tshuam
Cov khoom siv mining (xws li winches, loaders, thiab mining truck) ua haujlwm nyob rau hauv ib puag ncig hnyav thiab raug cov plua plav, pob zeb cuam tshuam, thiab ntub dej thiab av nkos rau lub sijhawm ntev. Lub brake hauv ob sab phlu yog raug rau cov plua plav nkag, ua rau abrasive hnav. Nyob rau tib lub sijhawm, muaj zog cuam tshuam nrog cov khoom siv braking, exacerbating lub zos puas tsuaj rau hauv ob sab phlu. Cov qauv hloov pauv rau cov kev ua haujlwm zoo li no yuav tsum tau ceeb toom ua ntej, nrog rau kev tsom mus rau kev tiv thaiv qhov txawv txav thiab tsim kua muag:
- Thickness standard: Thaum lub thickness ntawm cov khoom sib txhuam yog tsawg dua 6 hli, nws yuav tsum tau hloov. Rau cov khoom siv uas nquag ua haujlwm nyob ze ntawm thaj chaw blasting, vim yog cov hmoov av zoo dua thiab muaj zog dua, nws yuav tsum tau hloov thaum lub thickness tsawg dua 8 hli. Nyob rau tib lub sijhawm, nws yog ib qho tsim nyog los xyuas seb lub hauv ob sab phlu tau eroded los ntawm plua plav thiab tsim grooves. Yog hais tias qhov zawj qhov tob tshaj 2 hli, nws yuav tsum tau hloov synchronously.
- Kev siv lub voj voog siv: Lub neej kev pab cuam ntawm lub hauv paus nres rau cov khoom siv tsuas yog 3-6 lub hlis. Yog tias thaj chaw ua haujlwm yog pob zeb nyuaj xws li granite, lub neej kev pabcuam yuav luv luv rau 2-4 lub hlis. Nws raug nquahu kom ntxuav thiab tshuaj xyuas cov ntaub hauv ob sab hauv txhua 7 hnub thiab ua qhov ntsuas thickness txhua hli.
- Cov teeb liab tshwj xeeb: Yog tias muaj "txoj suab nrov" (cov suab nrov sib txhuam los ntawm cov plua plav suav nrog) thaum lub sijhawm braking, cov nyhuv braking fluctuates, thiab muaj qhov pom tseeb khawb ntawm lub log ntawm lub log, nws yog ib qho tsim nyog yuav tsum tam sim ntawd nres lub tshuab rau disassembly thiab tshuaj xyuas kom tsis txhob muaj kev puas tsuaj hauv ob sab phlu thiab cov khib nyiab cuam tshuam lub nres nres.
3. Kev ua haujlwm ntawm cov chaw nres nkoj thauj khoom thiab tshem tawm cov tshuab: kev saib xyuas zoo nyob rau hauv siab - zaus ua haujlwm tsis tu ncua
Chaw nres nkoj thauj khoom thiab tshem tawm cov tshuab (xws li thawv cranes, ntug dej hiav txwv cranes, thiab gantry cranes) xav tau 24-teev kev ua haujlwm tas mus li nrog lub siab braking zaus (3-5 brakes ib feeb ntawm qhov nruab nrab), thiab raug rau ntsev tsuag corrosion ib puag ncig ntev, ua rau hauv ob sab phlu muaj thermal degradation thiab corrosion aging. Hom kev ua haujlwm no yuav tsum tau tsim kom muaj lub zog saib xyuas lub cev kom raug tswj lub sijhawm hloov pauv:
- Thickness standard: Thaum lub thickness ntawm cov khoom sib txhuam yog tsawg dua 7 hli, nws yuav tsum tau hloov. Yog hais tias cov cuab yeej siv disc brakes, lub thickness tuaj yeem so mus rau 5 hli vim tias muaj cov nyhuv thermal dissipation zoo, tab sis kev sib txhuam coefficient yuav tsum tau sim synchronously. Nyob rau hauv ib puag ncig ntsev tsuag, yog tias qhov corrosion thiab tev ntawm ntug ntawm lub hauv ob sab phlu tshaj 10%, txawm tias lub thickness raws li tus qauv, nws yuav tsum tau hloov.
- Kev siv lub voj voog siv: Lub neej kev pab cuam ntawm cov pawm nres rau siab - lub tshuab ua haujlwm zaus hauv cov chaw nres nkoj feem ntau yog 4-8 lub hlis. Yog tias nws yog ib qho khoom siv uas ua haujlwm tsis tu ncua nruab hnub thiab hmo ntuj, lub neej kev pabcuam yuav luv luv rau 3-5 lub hlis. Nws raug nquahu kom nruab ib qho online thickness xyuas cov cuab yeej los saib xyuas kev hnav hauv lub sijhawm. Yog tias tsis muaj cov cuab yeej saib xyuas, nws yuav tsum tau kuaj txhua 10 hnub.
- Cov teeb liab tshwj xeeb: Thaum nres, yog tias lub nres nres nres tawm cov pa luam yeeb, lub hauv paus nres emits cov ntxhiab tsw tsw, thiab lub zog nres yuav txo qis tom qab nres nres (nce qhov kev ncua deb ntawm ntau tshaj 20%), nws yog ib qho tsim nyog yuav tsum nres tam sim ntawd lub tshuab kom txias thiab tshuaj xyuas kom tsis txhob thermal degradation thiab nres nres.
4. Cov khoom siv metallurgical kub kub ua haujlwm ua haujlwm: cov khoom siv tshwj xeeb kuaj hauv qhov kub thiab txias
Cov cuab yeej siv hlau kub kub (xws li steelmaking converters, nruam casting tshuab, thiab dov mills) ua haujlwm nyob rau hauv qhov kub thiab txias (nrog rau ib puag ncig kub txog 150-300 degree). Nres ob sab tsis tsuas yog yuav tsum tau tiv thaiv cov khoom thauj khoom, tab sis kuj yuav tsum tau tiv thaiv cov khoom laus los ntawm kev kub kub, uas tuaj yeem ua rau muaj teeb meem xws li carbonization thiab tawg. Cov qauv kev hloov pauv rau cov kev ua haujlwm zoo li no yuav tsum tau ua ke nrog cov khoom siv ntsuas kev ua tau zoo, tsis yog tsuas yog tso siab rau ntawm tuab:
- Thickness thiab cov qauv khoom: Thaum lub thickness ntawm cov khoom sib txhuam yog tsawg tshaj li 5 hli, nws yuav tsum tau hloov, thiab ib tug tshwj xeeb tshuaj xyuas cov khoom yuav tsum tau ua txhua txhua 3 lub hlis. Yog hais tias lub thickness ntawm cov carbide txheej nyob rau hauv ob sab phlu nto tshaj 1 hli, cov kab nrib pleb nrog ib tug ntev tshaj 5 hli yog pom, los yog cov kev sib txhuam coefficient poob qis dua 80% ntawm tus qauv tus nqi, txawm tias cov thickness raws li tus qauv, nws yuav tsum tau hloov tam sim ntawd. Kev kub siab resistant ceramic los yog hlau raws li cov ntaub thaiv npog yuav tsum raug xaiv, thiab cov khoom siv raws li cov ntaub ntawv zoo tib yam raug txwv tsis pub siv rau hauv kev ua haujlwm zoo li no.
- Kev siv lub voj voog siv: Lub neej kev pab cuam ntawm lub hauv paus nres rau siab - cov khoom siv metallurgical kub feem ntau yog 2-4 lub hlis. Yog tias cov cuab yeej nyob ze rau qhov cub smelting (ambient kub tshaj 300 degree), lub neej kev pab cuam yuav luv luv rau 1-2 lub hlis. Nws raug nquahu kom ua qhov kev kuaj pom ib zaug ib lub lim tiam thiab ntsuas qhov tuab thiab kev sib txhuam coefficient ib hlis ib zaug.
- Cov teeb liab tshwj xeeb: Thaum braking, muaj qhov tshwm sim ntawm "adhesion" ntawm lub log nres thiab hauv ob sab phlu, cov khoom siv tsis tuaj yeem rov pib dua lub sijhawm tom qab nres, thiab muaj cov cim melting ntawm lub hauv ob sab phlu. Nws yog ib qho tsim nyog yuav tsum nres lub tshuab tam sim ntawd rau kev hloov pauv kom tsis txhob muaj qhov kub thiab txias ua rau lub tshuab nres nres.
3. Cov kev ceev faj tseem ceeb rau kev hloov thiab siv cov khoom siv nres
1. Kev xaiv cov khoom siv ntxiv: Qhov tseem ceeb tshaj plaws rau kev yoog raws li kev ua haujlwm, tsis lees txais cov kev hloov qis dua
Kev xaiv ntawm kev lag luam brakes yuav tsum nruj me ntsis raws li cov qauv khoom siv, theem load, thiab kev ua haujlwm. Tsis txhob siv cov khoom siv tsis zoo los yog cov ntaub qhwv universal los txo cov nqi. Cov ntaub ntawv tsis zoo yog qhov ua rau muaj teeb meem xws li kev sib txhuam tsis ruaj khov, siab - carbonization kub, thiab kev puas tsuaj thaum ntxov, uas tsis yog tsuas yog ua rau muaj kev pheej hmoo ntawm kev nres nres, tab sis tseem ua rau kom nres lub log hnav thiab nce cov nqi kho khoom. Piv txwv li, hnyav- cov khoom siv ua haujlwm yuav tsum muaj siab- lub zog hlau raws li cov ntaub ntawv, siab - qhov kub thiab txias yuav tsum tau siv cov khoom siv ceramic, thiab cov plua plav yuav tsum tau hnav- cov hnab looj tes nrog cov ntaub ntom ntom. Ua ntej hloov, nws yog ib qho tsim nyog los xyuas qhov ntsuas qhov ntsuas, kev sib txhuam coefficient, kev khiav hauj lwm kub thiab lwm yam tsis zoo ntawm lub hauv ob sab phlu kom ntseeg tau tias cov khoom yuav tsum tau ua.
2. Hloov cov specifications: kev disassembly, kev kuaj system
Kev hloov cov khoom nres nres yuav tsum tau ua los ntawm cov neeg ua haujlwm tu neeg tsim nyog. Ua ntej hloov pauv, cov cuab yeej siv hluav taws xob yuav tsum raug txiav tawm thiab kaw kom ruaj ntseg kom tsis txhob muaj teeb meem pib- nce. Thaum hloov pauv, kev tshuaj xyuas tag nrho ntawm lub tshuab nres yuav tsum tau ua ib txhij: yog tias muaj cov grooves nrog qhov tob tshaj 1.5mm lossis roundness yuam kev ntau tshaj 0.5mm ntawm qhov chaw ntawm lub log, tig los yog hloov; Yog hais tias lub elasticity ntawm lub caij nplooj ntoos hlav nres poob qis dua 90% ntawm tus qauv tus nqi, nws yuav tsum tau hloov synchronously; Lub hydraulic lossis pneumatic braking system yuav tsum tau kuaj xyuas qhov sib khi ntawm cov kav dej. Yog tias muaj cov dej xau, cov khoom sib khi yuav tsum tau hloov thiab cov pa yuav tsum tau ntws; Yog hais tias lub sij hawm teb ntawm lub nres solenoid los yog hydraulic thawb pas nrig tshaj 0.3 vib nas this, cov tsav tsheb yuav tsum tau kho los yog hloov. Tom qab kev hloov pauv, nws yuav tsum tau sau cov ntaub ntawv xws li cov qauv hauv ob sab phlu, hloov hnub, thiab kev ua haujlwm, thiab tsim kom muaj kev ua haujlwm thiab kev saib xyuas cov ntaub ntawv.
3. Sib tsoo thiab txij nkawm: Kho kom haum rau cov yam ntxwv ntawm cov cuab yeej thiab ua haujlwm tsis tu ncua
Tshiab hloov tshiab muaj nres pads yuav tsum tau khiav nyob rau hauv kom ua tau kom pom zoo braking nyhuv. Thaum lub sij hawm khiav hauv lub sij hawm, lub hauv paus ntsiab lus ntawm "tsis tshua muaj load, tsawg zaus" yuav tsum tau ua raws li: kev khiav hauv load ntawm cov khoom hnyav yuav tsum tsis txhob ntau tshaj 60% ntawm cov nqi load, thiab lub braking zaus yuav tsum tsis txhob ntau tshaj ib zaug ib feeb; Kev khiav haujlwm hauv lub sijhawm siab - cov khoom siv ua haujlwm zaus yuav tsum tsis pub tsawg dua 4 teev, thaum lub sij hawm cov ntaub ntawv adhesion yuav tsum tau kuaj xyuas txhua teev. Tom qab kev khiav hauv tiav lawm, lub nres tshem tawm yuav tsum tau hloov kho (feem ntau 0.3-0.5mm) kom paub meej tias lub sijhawm nres nres. Nyob rau hauv kev saib xyuas txhua hnub, nws yog ib qho tsim nyog los ntxuav cov plua plav ntawm cov hauv ob sab phlu thiab lub log nres txhua lub lim tiam nyob rau hauv cov plua plav, xyuas cov khoom siv hluav taws xob tsis tu ncua nyob rau hauv qhov kub thiab txias, thiab ua cov tshuaj tiv thaiv xeb ntawm cov khoom nres txhua hli nyob rau hauv cov tshuaj tsuag ntsev kom tsis txhob muaj kev puas tsuaj.
4. Kev saib xyuas thiab ceeb toom ntxov: Tsim kom muaj ib qho kev tshuaj ntsuam xyuas kom tsis txhob muaj kev pheej hmoo ua ntej
Cov tuam txhab lag luam yuav tsum tsim kom muaj kev soj ntsuam xyuas cov txheej txheem rau kev lag luam hauv ob sab phlu: kev tshuaj xyuas txhua hnub tsom rau kev tshuaj xyuas cov tsos ntawm cov hauv ob sab phlu, nres suab, thiab nres lub log kub; Kev tshuaj xyuas tshwj xeeb (txhua lub limtiam / hli, hloov kho raws li kev ua haujlwm) siv lub ntsuas tuab los ntsuas qhov tuab thiab sau tus nqi hnav; Kev ntsuas sib sib zog nqus (lub hlis twg) tso siab rau cov koom haum tshaj lij los sim cov kev sib txhuam coefficient, cov khoom siv, thiab ntsuas lub neej ua haujlwm ntxiv. Rau cov kev khiav hauj lwm tseem ceeb xws li kev ua haujlwm siab, kev thauj khoom siab, thiab cov khoom siv kub, nws raug nquahu kom nruab ib qho kev saib xyuas hauv online los saib xyuas cov tsis xws li hauv ob sab phlu thickness, braking kub, thiab braking torque hauv lub sijhawm. Thaum cov kev txwv tsis pub dhau qhov pib, lub tswb tsis siv neeg yuav tshwm sim. Thaum kuaj pom qhov txawv txav ntawm lub hauv ob sab phlu, nws yog ib qho tsim nyog yuav tsum tau soj ntsuam qhov ua rau ntawm qhov hnav (xws li kev siv ntau dhau, kev nres nres ntau dhau, plua plav nkag, thiab lwm yam), txhim kho kev ntsuas kom raug, thiab zam qhov teeb meem los ntawm kev rov ua dua.
Kev kho kom haum rau kev ua haujlwm yog qhov tseem ceeb, thiab kev nyab xeeb thiab kev saib xyuas yog qhov tseem ceeb. Tsis muaj cov qauv kev sib koom ua ke rau kev hloov cov khoom lag luam nres, thiab cov tub ntxhais nyob rau hauv qhov ua tau raws li qhov kev ua haujlwm zoo - cov khoom siv hnyav hnyav, plua plav cuam tshuam ib puag ncig ntawm cov mines, siab - zaus ua haujlwm ntawm cov chaw nres nkoj, thiab siab - qhov kub thiab txias ntawm qhov ntsuas kub ntawm metallurgy, tag nrho cov uas yuav tsum tau hloov cov hom phiaj. Kev nyab xeeb ntawm kev lag luam nres tsheb yog cuam tshuam nrog kev ua haujlwm ruaj khov ntawm cov khoom siv thiab kev nyab xeeb ntawm cov neeg ua haujlwm lub neej. Nws yog ib qho tsim nyog yuav tsum tau tso tseg txoj kev xav ntawm hmoov zoo thiab tsim kom muaj kev ua haujlwm puv ntoob thiab kev saib xyuas ntawm "kev xaiv thiab kev hloov kho, hloov tus qauv, kev saib xyuas tsis tu ncua, thiab kev ceeb toom kom raug".