Lub teeb yuag tsim thiab siab -Lub zog ntawm cov khoom siv sib xyaw ua ke rau cov khoom siv taug qab
Dab tsi yog cov ntsiab lus tseem ceeb thiab lub hom phiaj tswj qhov hnyav ntawm lub teeb yuag tsim rau cov khoom siv taug qab?
Lub teeb yuag tsim ntawm taug qab accessories yuav tsum ua raws li cov hauv paus ntsiab lus ntawmQhov hnyav txo qhov hnyav, kev ua haujlwm ruaj khov, thiab txo tus nqi, ua tiav qhov hnyav txo los ntawm peb qhov kev ntsuas: kev ua kom zoo dua qub, cov khoom siv kho dua tshiab, thiab kev txhim kho cov txheej txheem, thaum ua kom ntseeg tau tias tensile, shear, thiab qaug zog kuj tsis qis dua cov khoom siv tsoos. Lub hom phiaj sib sib zog nqus rau siab - kev tsheb ciav hlau ceev yog txo qhov hnyav los ntawm 15%-20%. Piv txwv li, qhov hnyav ntawm 75-hom phaj siab yog txo los ntawm 8kg mus rau 6.5kg, thiab qhov hnyav ntawm elastic strips yog txo los ntawm 3kg mus rau 2.5kg, zoo txo cov ntsug loads ntawm pw tsaug zog. Lub hom phiaj txo qhov hnyav rau cov khoom siv hluav taws xob zoo tib yam yog 10% -15%, txo cov khoom siv thiab cov nqi tsheb thauj mus los ntawm qhov chaw ua haujlwm kom ntseeg tau qhov kev ua tau zoo. Lub hom phiaj txo qhov hnyav rau kev lag luam thiab mining hnyav-lub luag hauj lwm accessories yog conservative, tswj ntawm 5% -10%, zam dhau lub teeb yuag tsim cuam tshuam rau kev cuam tshuam. Txhua lub teeb yuag accessory tsim yuav tsum xeem dhau kev ntsuas kev ua tau zoo los xyuas kom meej tias kev ua tau zoo ua tau raws li cov qauv tom qab qhov hnyav txo, thiab nws raug txwv nruj me ntsis los pauv lub zog rau kev tsim lub teeb.
Dab tsi yog qhov kev ua kom zoo dua qub thiab kev xaiv cov khoom siv rau lub teeb yuag elastic strips ntawm siab - kev tsheb ciav hlau ceev?
Hnav elastic strips rau siab - kev tsheb ciav hlau ceev txais yuav asib txawv -section hollow design, nrog cov hollow qhov ntawm 8-10mm inch inch set in non-stress- bearing parts, uas txo tus kheej qhov hnyav yam tsis muaj kev cuam tshuam kev ntxhov siab, ua tiav 18% qhov hnyav txo piv nrog cov tsoos elastic strips. Cov khoom siv yog60Si2CrVATi qis- alloy siab- lub zog caij nplooj ntoos hlav steel. Rau lub hauv paus ntawm kev tuav lub siab elasticity ntawm ib txwm 60Si2CrVA, cov khoom no ntxiv titanium cov ntsiab lus rau refine nplej, nce tensile zog mus rau 1450MPa thiab yield zog mus rau 1300MPa, ua rau lub dag lub zog poob los ntawm lub hollow tsim. Lub claw qhov chaw ntawm lub elastic strips yog nyob rau hauv lub zos thickened los ntawm 2mm los ntxiv dag zog rau tom lub zog nrog rail slots thiab tiv thaiv buckling quab yuam attenuation. Qhov saum npoo yog coated nrogIb puag ncig tus phooj ywg Dacromet txheejes tsis txhob txwm kub -dip galvanizing. Nrog cov txheej tuab ntawm tsuas yog 8-12μm, nws tsis tsuas yog txo qhov hnyav xwb tab sis kuj txhim kho kev ua haujlwm tiv thaiv-corrosion, nrog rau qhov nruab nrab ntsev tsuag tshuaj tiv thaiv txog li 1000 teev. Qhov zoo tshaj plaws elastic strips yuav tsum dhau 2 lab kev sim qaug zog yam tsis muaj kev puas tsuaj ua ntej siv rau cov kab tsheb ciav hlau ceev.
Dab tsi yog cov txheej txheem txhim kho thiab kev ruaj ntseg ntsuas rau lub teeb yuag fishplates ntawm kev tsheb ciav hlau zoo tib yam?
Lightweight fishplates rau dog dig railways txais yuavkub- dov precision forming txheej txheemes tsis txhob ntawm cov tsoos forging + machining txheej txheem, txo cov khoom txiav poob, nce kev siv cov khoom siv los ntawm 60% mus rau 90%, thiab txo qhov hnyav los ntawm 12%. Tus qauv adopts aweb thinning + flange thickeningtsim, nrog lub web thickness txo los ntawm 12mm mus rau 8mm thiab lub flange thickness nce los ntawm 15mm mus rau 18mm, kom ntseeg tau tias lub bending txhav nyob rau hauv lub sib koom ua ke raws li cov tsoos fishplates. Cov khoom siv yogQ420 qis- alloy siab- lub zog steeles tsis txhob tsoos Q355 steel, nrog tensile lub zog nce mus rau 420MPa thiab yield zog nce mus rau 345MPa, ua tau raws li qhov yuav tsum tau load ntawm cov kab railway. Lub bolt qhov ntawm fishplates txais yuavtxias extrusion txheej txheemkom tsis txhob muaj kev ntxhov siab los ntawm kev drilling, nrog rau lub qhov phab ntsa roughness tswj hauv qab Ra1.6, txhim kho kev qaug zog tiv thaiv . 10% ntawm txhua pawg ntawm cov ntses sib sib zog nqus yuav tsum tau coj mus kuaj rau rub- tawm kev xeem, thiab rub- tawm lub zog ntau dua lossis sib npaug ntawm 70kN yog suav tias tsim nyog los xyuas kom meej qhov kev sib txuas ruaj khov ntawm kev sib koom ua ke.
Dab tsi yog qhov hnav - tiv thaiv kom muaj zog thiab cuam tshuam - tiv thaiv tsim qauv rau lub teeb yuag lub hauv paus phaj ntawm kev lag luam thiab mining hnyav loads?
Lub teeb lub hauv paus phaj rau kev lag luam thiab mining hnyav loads txais yuavpolyurethane + iav fiber ntau cov khoom sives tsis txhob siv cov roj hmab ntshiab hauv paus daim hlau, nrog qhov ceev txo los ntawm 1.2g / cm³ mus rau 0.9g / cm³, hnyav txo los ntawm 25%, thiab hnav tsis kam zoo los ntawm 3 zaug. Tus qauv adopts ahoneycomb buffer txheej tsimnrog rau honeycomb aperture ntawm 15 hli thiab lub qhov phab ntsa tuab ntawm 2 hli, uas tsis tsuas yog txo tus kheej - hnyav tab sis kuj txhim khu kev tiv thaiv, muaj peev xwm tiv taus siab - zaus dov ntawm kuv lub tsheb. Sab saum toj ntawm lub hauv paus phaj yog txau nrogalumina ceramic hnav- tiv taus txheejnrog lub thickness ntawm 0.5 hli thiab ib tug hardness ntawm HRC60 los yog siab dua, tiv thaiv hnav ntawm lub hauv paus phaj nto los ntawm cov ntxhia cov ntaub ntawv thiab ncua kev pab cuam lub neej. Ntug ntawm lub hauv paus phaj adopts asteel ncej ntug wrapping tsimnrog lub thickness ntawm 3 hli, txhim khu lub kua muag kuj ntawm lub hauv paus phaj thiab zam kev puas tsuaj los ntawm scraping ntawm kuv lub tsheb log. Lub zog dynamic- zoo li qub stiffness piv ntawm lub teeb yuag lub hauv paus daim hlau yog tswj ntawm tsawg dua los yog sib npaug li 2.8, ua tau raws li qhov xav tau ntawm kev poob siab ntawm kev lag luam thiab cov kab mining, thiab lub zog compressive yog ntau dua los yog sib npaug rau 150MPa kom tsis txhob muaj cov yas deformation nyob rau hauv hnyav loads.
Dab tsi yog qhov kev soj ntsuam zoo thiab kev lees paub cov qauv rau kev taug qab cov khoom siv tom qab tsim teeb pom kev zoo?
Kev soj ntsuam zoo ntawm cov khoom siv taug qab tom qab lub teeb yuag tsim xav tau ntxivLub teeb hnyav coefficient txheeb xyuas. Lub teeb yuag coefficient=(qhov hnyav ntawm cov khoom siv tsoos tsho - qhov hnyav ntawm cov khoom siv sib sib zog nqus) / qhov hnyav ntawm cov khoom siv tsoos × 100%, uas yuav tsum ua kom tau raws li lub hom phiaj txo qhov hnyav. Kev ntsuas kev ua tau zoo ntawm cov tshuab yuav tsum npog plaub qhov ntsuas tseem ceeb: lub zog tensile, lub zog tawm los, lub zog shear, thiab lub neej qaug zog, txhua yam yuav tsum tsis txhob qis dua cov qauv kev ua haujlwm ntawm cov khoom siv ib txwm muaj. Piv txwv li, lub neej qaug zog ntawm lub teeb yuag elastic strips yuav tsum ntau dua los yog sib npaug rau 2 lab lub sij hawm, thiab lub zog shear ntawm lub teeb yuag fishplates yuav tsum ntau dua los yog sib npaug rau 60kN. Anti- kev ua haujlwm corrosion yog kuaj los ntawm qhov nruab nrab ntsev tsuag tshuaj ntsuam: siab- kev tsheb ciav hlau ceev yuav tsum tiv taus Ntau dua lossis sib npaug li 1000 teev yam tsis muaj xeb liab, cov khoom siv hluav taws xob zoo tib yam Ntau dua lossis sib npaug li 500 teev, thiab cov khoom siv hluav taws xob thiab cov mining ntau dua lossis sib npaug li 800 teev. Ntawm - qhov chaw txais yuav tsum ua raws li txoj cai ntawmsampling soj ntsuam + installation test, sampling 5% ntawm lub teeb yuag accessories ib kilometer. Tom qab kev teeb tsa, kev sim ua haujlwm yog ua los soj ntsuam qhov kev sib haum xeeb thiab kev vibration tus nqi ntawm txoj kev khiav. Kev sib haum xeeb Tsawg dua lossis sib npaug ntawm 0.1mm thiab kev vibration acceleration Tsawg dua lossis sib npaug li 0.5g yog suav tias tsim nyog. Batch daim ntawv thov raug tso cai tsuas yog tom qab kev lees paub los xyuas kom meej tias daim ntawv thov engineering muaj kev nyab xeeb ntawm cov khoom siv hnyav.