Taug qab clamping phaj qauv compatibility thiab locking txwv core yuav tsum
Dab tsi yog qhov kev faib tawm ntawm cov phiaj xwm siab thiab lawv cov qauv tsheb ciav hlau hloov tau?
Cov phaj siab khiav yog feem ntau muab faib ua peb pawg: lub teb chaws tus qauv tsheb ciav hlau siab daim hlau, txawv teb chaws tus qauv tsheb ciav hlau siab daim hlau thiab lifting rail siab daim hlau. Cov qauv tau raug hloov kho raws li cov qauv kev tsheb ciav hlau ib qho los ntawm ib qho, tsis muaj cov qauv universal. Lub teb chaws tus qauv siab daim hlau yog tsim rau 50kg / m, 60kg / m thiab 75kg / m lub teb chaws tus qauv rails, sib xws rau cov qauv 50, 60 thiab 75, thiab qhov dav ntawm lub siab phaj qhov haum rau rail puag loj. Txawv teb chaws tus qauv siab daim hlau yog tsim rau UIC60, BS80A thiab AREMA136RE txawv teb chaws tus qauv rails, European txheem SKL siab daim hlau yog tshwj xeeb rau UIC60, thiab American standard siab daim hlau phim lub tsheb ciav hlau puag contour ntawm American standard rails. Lifting rail siab daim hlau yog tsim rau QU70, QU80, QU100 thiab QU120 lifting rails, nrog rau qhov tob qhov tob thiab muaj zog locking quab yuam kom ua tau raws li cov kev xav tau ntawm kev lag luam thiab mining hnyav -load hoisting. Qhov loj thiab qhov arc ntawm cov phaj siab sib txawv yog tsim raws li cov khoom sib txuas, thiab kev sib tsoo yuav ua rau tsis ua haujlwm, yog li kev xaiv yuav tsum nruj me ntsis sib xws.
Dab tsi yog cov khoom siv tseem ceeb thiab cov ntsuas kev ua tau zoo ntawm cov phaj siab?
Cov ntaub ntawv tseem ceeb ntawm cov phaj siab yog peb hom: Q235 carbon steel, Q355 low alloy steel thiab forged alloy steel, thiab cov khoom siv kho tshuab tau yoog rau cov kab sib txawv ua haujlwm raws li xav tau. Q235 steel siab daim hlau muaj lub zog tensile ntawm Ntau dua lossis sib npaug ntawm 375MPa, zoo plasticity thiab tus nqi qis, tsim nyog rau cov kab tsheb ciav hlau zoo tib yam thiab qis -ceev kev lag luam thiab cov kab mining kom tau raws li cov kev xav tau yooj yim. Q355 qis alloy steel siab daim hlau muaj lub zog tensile ntau dua lossis sib npaug ntawm 510MPa thiab lub zog tawm los ntawm Ntau dua lossis sib npaug rau 355MPa, muaj zog deformation tsis kam, uas yog cov qauv tseem ceeb rau cov kab tsheb ciav hlau zoo tib yam thiab cov kab metro kab, haum rau cov pa locking. Forged alloy steel siab daim hlau muaj lub zog tensile ntawm Greater los yog sib npaug rau 780MPa thiab ib tug hardness ntawm Greater tshaj los yog sib npaug zos rau 220HB, nrog zoo heev tej yam kev mob thiab qaug zog kuj, haum rau siab - ceev railways, hnyav - tsheb ciav hlau railways thiab nkhaus seem kab. Tag nrho cov phaj siab yuav tsum tau ua kom tau raws li qhov sib txawv ntawm qhov sib txawv tsawg dua lossis sib npaug ntawm 0.3mm, tsis muaj cov yas deformation tom qab xauv, thiab sab dabtsi yog khoov deflection Tsawg dua lossis sib npaug li 0.5mm los xyuas kom meej qhov kev txwv tsis pub kaw.
Dab tsi yog qhov tseem ceeb ntawm cov qauv sib txawv ntawm kev siab - kev tsheb ciav hlau ceev thiab cov phiaj xwm kev tsheb ciav hlau zoo tib yam?
High -Speed railway siab daim hlau txais ibelastic locking integrated qauvnrog ua -nyob rau hauv elastic gaskets, uas muaj ob qho tib si txwv thiab micro- buffering ua haujlwm tom qab xauv, hloov mus rau qhov kev txwv nruj xav tau ntawm siab - kev tsheb ciav hlau tsis muaj kev sib tw. Ordinary railway siab daim hlau yogtxhav ncaj phaj qauvtsis muaj elastic Cheebtsam, tsom rau cov ntshiab lateral txwv, yoog raws li cov yam ntxwv deformation ntawm ballasted lem nrog cov nqi pheej yig dua. Lub qhov siab ntawm - ceev railway siab daim hlau yog ua tiav nrog arc chamfer kom tsis txhob khawb lub tsheb ciav hlau puag thaum lub sij hawm xauv, thiab lub siab phaj thickness yog ntau tshaj los yog sib npaug zos rau 16 hli nrog muaj zog deformation kuj los tiv thaiv siab - ceev transverse cuam tshuam quab yuam. Qhov tuab ntawm cov phiaj xwm kev tsheb ciav hlau zoo tib yam yog 12-14mm, uas yog txaus kom ua tau raws li lub nra ntawm kev tsav tsheb zoo tib yam, thiab lub qhov yog txoj cai- lub kaum sab xis tsim nrog kev ua haujlwm yooj yim dua. High- cov phiaj xwm ceev tsheb ciav hlau tau sib tw nrog 10.9 qib siab lub zog bolts, thiab cov phiaj xwm kev tsheb nqaj hlau zoo tib yam nrog 8.8 qib bolts, lub xauv lub zog yog sib npaug nrog lub zog ntsia hlau synchronously, thiab cov qauv sib txawv txiav txim siab qhov kev hloov pauv.
Dab tsi yog qhov ntsuas phoo torque thiab kev tsim kho tshwj xeeb rau kev taug qab siab phaj installation?
Lub locking torque rau khiav siab phaj installation yog nruj me ntsis raws li lub bolt lub zog qib uas tsis muaj kev sib koom ua qauv, thiab tsis txaus los yog ntau tshaj torque yuav cuam tshuam rau kev siv. Rau cov phiaj xwm kev tsheb nqaj hlau zoo sib xws nrog 8.8 qib bolts, lub ntsuas phoo torque yog tswj ntawm 350-400N·m kom ntseeg tau tias qhov kev sib hloov ntawm lub ntsuas phoo ntau dua lossis sib npaug rau 120kN yam tsis muaj loosening lossis tawg. Rau siab- nrawm railway siab daim hlau sib tw nrog 10.9 qib bolts, lub ntsuas phoo torque yog tswj ntawm 500-550N·m, transverse locking force Ntau dua lossis sib npaug rau 180kN, thiab lub zog sib txawv tsawg dua los yog sib npaug ntawm 5}5% los tiv thaiv qhov tseeb ntawm ± 5% Thaum lub sij hawm tsim kho, kho lub siab phaj qhov nrog lub hauv paus kev tsheb nqaj hlau ua ntej, ua ntej nruj lub bolts tom qab haum tsis muaj qhov khoob, thiab thaum kawg ua qhov kawg nruj nrog lub torque ciaj ntswj raws li tus qauv torque, thiab skew installation yog nruj me ntsis txwv tsis pub. Kev sib txuas ntawm cov phaj siab yog ua raws li cov kev cai ntawm kab: 600mm rau kev kub ceev railways, 800mm rau cov kev tsheb ciav hlau zoo tib yam thiab 500mm rau kev nqa cov tsheb ciav hlau, thiab kev sib koom ua ke kom muaj kev txwv tsis pub muaj kev txwv. Tom qab kev teeb tsa, xyuas tias tsis muaj ntug warping ntawm lub phaj siab thiab tsis muaj tsheb ciav hlau offset ua ntej siv.
Dab tsi yog cov teeb meem tshwm sim thiab kev saib xyuas kev ntsuas ntawm cov phaj siab hauv kev siv?
Cov teeb meem tshwm sim ntawm cov phaj siab hauv kev siv muaj xws li tsib hom: siab phaj ntug warping, qhov hnav, bolt loosening, rail offset thiab siab phaj deformation, txhua yam yuav tsum tau kho raws sij hawm kom tsis txhob muaj kev phom sij. Siab phaj ntug warping yog tshwm sim los ntawm skew installation, yog li nws yog tsim nyog los loosen lub bolts kom recalibrate lub qhov, thiab xauv dua raws li tus qauv torque tom qab haum lub tsheb ciav hlau puag. Qhov hnav ntau dua lossis sib npaug li 1 hli yuav ua rau muaj kev txwv tsis ua haujlwm, yog li nws yuav tsum tau hloov cov phaj siab tshiab tam sim ntawd thiab nws raug txwv nruj kom siv cov khoom hnav ntxiv. Bolt loosening feem ntau yog vim lub zog torque attenuation lossis los tiv thaiv - loosening tsis ua hauj lwm, yog li nws yog ib qho tsim nyog yuav tsum tau rov kho dua rau tus qauv torque thiab nruab lub caij nplooj ntoos hlav ntxhua khaub ncaws los yog xauv txiv ntseej kom ntxiv dag zog rau kev tiv thaiv - loosening. Rail offset yog tshwm sim los ntawm kev xauv lub zog tsis txaus ntawm lub phaj siab, yog li nws yog ib qho tsim nyog los xyuas seb lub siab phaj qauv puas tsim nyog, hloov nrog siab - lub zog bolts thiab nce lub xauv lub zog. Siab phaj deformation yog vim overload los yog cov khoom siv tsis zoo, yog li nws yog ib qho tsim nyog los hloov cov phaj siab ntawm cov qib sib piv, hloov kho rau forged alloy steel phaj rau hnyav- cov kab tsheb thauj mus los, ua kev tshuaj xyuas ib hlis ib zaug, thiab daws teeb meem hauv lub sijhawm kom muaj kev nyab xeeb.