Fastening System raws li kev sib koom ua ke tag nrho
Lub rail fastening system kho txoj kev tsheb ciav hlau mus rau tus neeg pw tsaug zog thaum tso cai rau kev tswj hwm elastic zog hauv kev tsheb. Lub caij nplooj ntoos hlav clip muab elastic clamping quab yuam, lub ntsia liaj qhov rooj tuav lub rooj sib txoos ua ke los ntawm preload, cov ntsia hlau loj anchors lub kaw lus rau hauv lub sleeper, thiab lub phaj clamping kis cov tsheb ciav hlau mus rau hauv kev txhawb nqa. Tsis muaj ib qho ntawm cov khoom no ua haujlwm ib leeg: ib qho clip nrog qhov tseeb clamping quab yuam tuaj yeem kov yeej los ntawm cov ntsia liaj qhov rooj rusted, thiab cov ntsia liaj qhov rooj zoo kawg nkaus tsis tuaj yeem them nyiaj rau hauv qab - anchored spike. Kab lus no piav qhia txog yuav ua li cas cov khoom tseem ceeb sib koom ua ke thiab cov kev ntsuas twg tsim nyog kuaj xyuas thaum yuav los yog tswj xyuas cov txheej txheem fastening.
Caij nplooj ntoos hlav Clip Clamping Force thiab kab kev nyab xeeb
Lub clamping quab yuam ntawm lub caij nplooj ntoos hlav clip ncaj qha txiav txim siab kho stability ntawm txoj kev tsheb ciav hlau. High- cov kab ceev yuav tsum muaj lub zog clamping tsawg kawg yog 16 kN ib clip, thaum cov pa - cov kab ceev ib txwm xav tau tsawg kawg yog 12 kN. Yog tias clamping quab yuam tsawg dhau, txoj kev tsheb ciav hlau hloov mus rau hauv lub tsheb ciav hlau kev co, ntsuas qhov sib txawv thiab qhov kev pheej hmoo derailment nce. Yog tias nws siab dhau lawm, qhov clip raug kev puas tsuaj rau lub cev qaug zog, nws lub neej kev pab cuam luv luv thiab lub xub pwg tsheb ciav hlau hnav. Cov clip sib txawv yog tsim los rau ntau theem sib txawv - Hom V clips rau siab - khiav ceev thiab Hom I clips rau cov pa khiav - yog li cov clip yuav tsum raug xaiv raws li tus qauv kab, thiab bolt preload yuav tsum tau siv nrog lub torque wrench yog li qhov tseeb clamping quab yuam phim tus nqi tsim.
Bolt Preload thiab Anti-Corrosion Txheej
Bolts raug tawm sab nraum zoov rau lawv lub neej kev pabcuam tag nrho, ntsib nag, av noo, ntsev thiab kub mus, thiab corrosion ncaj qha txo qis preload. Suav lub teb chaws cov qauv xav kom bolts nqa ob - txheej tiv thaiv zinc flake ntxiv rau epoxy resin, thiab cov txheej yuav tsum tsis muaj xeb liab tom qab 3000 teev ntawm kev ntsuas ntsev tsuag. Hnyav- cov kab tsheb thauj mus rau cov bolts rau siab dua thiab qhia cov txheej txheej ntxiv. Nyob rau hauv kev saib xyuas, txheej txheej yuav tsum tau tshuaj xyuas tsis tu ncua thiab xeb bolts hloov tam sim ntawd, vim hais tias ib tug ntsia liaj qhov rooj uas tau poob preload ntsiag to loosens tag nrho fastening.
Rail Spike Anchoring: Sulfur vs Resin
Rail spikes yog anched rau hauv pw tsaug zog los ntawm ib qho ntawm ob txoj hauv kev tseem ceeb. Sulfur anchoring pours molten sulfur mortar rau hauv pre-drilled qhov thiab suits ib txwm ua vaj tse pw tsaug zog; cov txheej txheem yog paub tab thiab tus nqi qis. Resin anchoring sau lub qhov nrog ob - cov khoom siv cob thiab yog qhov nyiam rau cov pob zeb ua kom muaj zog thiab tsis muaj kev sib tw, muab cov ntawv cog lus ntau dua, ua kom zoo dua qub thiab ua haujlwm ntau dua rau cov khoom siv sab nraud. Siab -ceev ballastless khiav qhov tseem ceeb ntawm resin anchoring kom ntev -lub sij hawm ruaj khov thiab txiav tu zaus. Nyob rau hauv ob qho tib si, qhov tseeb ntawm qhov drilling thiab qhov zoo ntawm tus neeg sawv cev thauj khoom tau txiav txim siab seb qhov yuav tsum tau rub - tawm qhov kev tawm tsam tau mus txog.
Clamping Plate Design thiab Force Transmission
Lub phaj clamping yog bolted rau tus neeg pw tsaug zog thiab nias rau ntawm txoj kev tsheb ciav hlau los ntawm qhov clip. Nws thaj chaw tiv tauj thiab cov duab tswj yuav ua li cas kev tsheb ciav hlau siab faib: lub phaj tsim nyog xa mus rau lub longitudinal thiab lateral force ntawm txoj kev tsheb ciav hlau sib npaug rau cov neeg pw tsaug zog thiab zam kev ntxhov siab hauv zos. High-cov tshuab ceev siv lub arc-kev sib cuag tsim uas haum rau cov tsheb ciav hlau hauv qab ze thiab txo qhov khoob uas tshwm sim los ntawm kev co; hnyav- cov kab tsheb siv cov phaj tuab nrog thaj tsam loj dua kom muaj sia nyob qhov cuam tshuam loj dua. Cov khoom siv phaj yog ib txwm siab -lub zog alloy steel, tshav kub- kho rau hardness thiab hnav tsis kam yog li lub phaj tsis deform ntau xyoo ntawm kev pabcuam.
Peb -Txoj kev hloov pauv rau Kev Ntsuas Geometry
Fastening systems nrog qhov siab thiab ntsuas kev hloov kho lub zog tuaj yeem kho qhov ntsuas ntawm ± 10 hli thiab qhov siab ntawm qhov siab los ntawm ± 30 hli, uas rov qab kho cov duab geometry tom qab pw tsaug zog thiab kev tsheb ciav hlau hnav yam tsis hloov ntau yam khoom. Cov kab tsheb ciav hlau hauv nroog - nrog qhov chaw nres tsheb luv luv thiab nquag pib- nres - deform sai dua, thiab kev hloov kho ua haujlwm txo qis tus nqi txij nkawm. Siab- cov kab ceev xav tau txoj kev sib tw heev, thiab kev hloov kho kom zoo ua rau lub log-rail dynamic rog tswj. Vim tias cov tshuab sib txawv muaj ntau qhov kev hloov kho sib txawv, qhov kev xaiv yuav tsum ua raws li txoj kab kev kho kom zoo.
Cov lus nug nquag
Q1: Vim li cas siab - khiav ceev yuav tsum muaj tsawg kawg yog 16 kN ntawm clip clamping quab yuam?
Nyob rau hauv kev kub ceev cov dynamic rog ntawm txoj kev tsheb nqaj hlau loj hlob nrog zaus thiab amplitude; Lub clamping quab yuam qis dua 16 kN tsis tuaj yeem tuav lub tsheb ciav hlau ko taw kom ruaj khov, yog li ntsuas kev sib kis thiab kev tsheb ciav hlau tuaj yeem txhim kho. Pa - cov kab ceev ua haujlwm ntawm qis qis qis thiab 12 kN yog qhov tsawg kawg nkaus.
Q2: Zinc flake yog dab tsi thiab vim li cas thiaj li yuav tsum muaj ob txheej - txheej txheej?
zinc flake yog zinc-flake anti-corrosion base coat siv los ntawm dip-spin txheej txheem; epoxy resin sab saum toj lub tsho tiv thaiv nws. Ob txheej txheej tiv thaiv 3000 xuab moos ntawm ntsev tsuag yam tsis muaj xeb liab thiab tiv thaiv lub bolt threads thiab shank, khaws cia preload tshaj lub neej kev pab cuam.
Q3: Thaum twg cov resin anchoring yuav tsum tau xaiv tshaj sulfur anchoring?
Resin anchoring yog xaiv rau prestressed qhob pw tsaug zog thiab ballastless khiav, qhov twg siab dua daim ntawv cog lus, kho sai thiab zoo dua tiv thaiv rau sab loads yog xav tau. Sulfur anchoring tseem pheej yig rau cov tsoos pob zeb pw tsaug zog ntawm cov kab lus.
Q4: Lub kaw lus fastening puas tuaj yeem kho cov duab geometry?
Yog, nyob rau hauv nws cov qauv tsim. Kev ntsuas kev hloov kho mus txog ± 10 hli thiab kev tsheb ciav hlau qhov siab hloov mus txog ± 30 hli tso cai rau pab pawg saib xyuas kom them nyiaj rau kev sib haum xeeb thiab hnav los ntawm kev sib pauv lossis shimming hloov cov khoom, zam kev hloov pauv.
Q5: Yuav ua li cas bolt txheej kuaj xyuas hauv kev pabcuam?
Kev kuaj pom pom yog thawj kauj ruam: saib cov xeb liab, tawg lossis tev txheej ntawm lub shank, txiv ntseej thiab ntxhua khaub ncaws. Bolts uas qhia txog kev xeb tseem ceeb raug hloov, thiab kev tshawb xyuas lub zog ntawm cov qauv ntawm fastenings lees paub tias preload tseem nyob rau theem tsim.