Lub luag haujlwm ntawm Track Pad hauv Fastening System
Cov ntaub ntawv taug qab yog qhov elastic interface nruab nrab ntawm lub tsheb ciav hlau ko taw thiab tus neeg pw tsaug zog. Yog tsis muaj nws, txoj kev tsheb ciav hlau dais ntawm ob peb lub ntsiab lus nyuaj, qhov chaw pw tsaug zog tau tawg nyob rau hauv cov khoom hnyav, thiab kev vibration los ntawm txhua lub log tsheb tau xa ncaj qha mus rau hauv cov qauv khiav thiab cov av ib puag ncig. Lub ncoo kuj tsim cov hluav taws xob thaiv uas ua kom cov traction rov qab tam sim no tawm ntawm lub kaw lus fastening kom cov kab hluav taws xob tuaj yeem ntes cov tsheb ciav hlau ntseeg tau. Peb lub luag haujlwm no, kev thauj khoom sib kis, kev vibration damping thiab hluav taws xob rwb thaiv tsev, teeb tsa cov kev ua haujlwm uas cov ntaub qhwv yuav tsum tau ua, thiab lawv piav qhia vim li cas cov ntaub qhwv ntsej xaiv yog qhov kev txiav txim siab tsim es tsis yog cov khoom xaiv xaiv.
Plaub Qhov Tseem Ceeb Track Pad Cov Khoom Siv
| Pad Hom | Kev tsim kho | Cov khoom tseem ceeb | Daim ntawv thov |
|---|---|---|---|
| Roj hmab ncoo | Highly elastic nkauj xwb roj hmab compound | Dynamic/static stiffness ratio Tsawg dua los yog sib npaug rau 2.0; zoo heev damping | High -kev ceev ballastless khiav |
| Composite ncoo | Roj hmab khi nrog txias - dov steel reinforcement | High rigidity thiab hnav tsis kam | Ballasted pa tsheb ciav hlau |
| Hnav-cov ntaub qhwv resistant | Polyurethane nrog hnav- tiv taus muab tub lim | Roughly ob crush thiab hnav tsis kam ntawm roj hmab | Hnyav - thauj khoom kuv thiab chaw nres nkoj |
| Insulating ncoo | Muab ob npaug rau- txheej rwb thaiv tsev | Rwb thaiv tsev tsis kam Ntau dua lossis sib npaug ntawm 5 x 10^6 Ω; withstanding voltage Ntau tshaj los yog sib npaug rau 3000 V | High -ceev thiab hluav taws xob khiav circuits |
UIC thiab BS profile versions ntawm cov ntaub qhwv no yog tsim los rau thoob ntiaj teb qhov ntev rau kev hla - ciam teb tej yaam num, yog li cov khoom xaiv thiab cov qauv txheej txheem tuaj yeem teev nws tus kheej.
Thickness xaiv: 5, 8, 10 thiab 12 mm
Pad thickness yog xaiv los ntawm kev sib hais haum thiab nruj ntawm lub trackbed, tsis yog los ntawm kev nyiam. Lub 5 hli thiab 8 hli pads yog lub hauv paus rau tus qauv siab - ceev thiab cov pa khiav, nrog kev sib hais haum txog li 1 hli, uas ua rau kev taug qab qhov siab ruaj khov thaum tseem muab kev co damping. 10 hli thiab 12 hli pads yog siv nyob rau hauv kev sib hais haum thiab hnyav industrial kab, qhov uas lawv nqus 2-3 hli ntawm trackbed kev sib hais haum thiab nce load bearing yog li cov tsheb ciav hlau tsis nyob rau hauv kev ntxhov siab. Txoj cai siv tau rau kab kab: 5-8 hli roj hmab ncoo rau siab- cov kab ceev kom tswj tau qhov siab, 8-10 hli cov ntaub ntawv sib xyaw rau cov kab sib npaug kom sib npaug damping thiab hnav, thiab 10-12 hli hnav-tiv taus pads rau kev lag luam thiab cov kab mining. Tsis txhob nce los yog txo cov thickness arbitrarily: ib tug over-thick pad cia txoj kev tsheb ciav hlau sway thiab distorts gauge, thaum lub under-thick pad tsis tuaj yeem muab qhov yuav tsum tau damping.
Core Performance Indicators thiab Test Standards
Rubber pads yog tsim nyog rau static stiffness ntawm 60 ± 10 kN / mm, dynamic - rau - zoo li qub stiffness ratio Tsawg dua los yog sib npaug rau 2.0, Shore hardness ntawm 65 ± 5 HA thiab tag nrho elastic rov qab nyob rau hauv lub rated deflection ntau yam; hardness yog kuaj rau ISO 48 / GB / T 531.1 thiab puas rau DIN 53516. Composite pads ntxiv hnav tsis kam Tsawg dua los yog sib npaug rau 0.1 cm³ ib 1.61 km ntawm tus qauv ntsuas kev puas tsuaj, tensile lub zog ntau dua los yog sib npaug rau 8 MPa thiab lub zog tsim kua muag Ntau dua los yog sib npaug rau 25 xyoo sib cuag. Insulating pads yuav tsum tuav cov rwb thaiv tsev tiv thaiv ntau dua lossis sib npaug ntawm 5 x 10 ^ 6 Ω thiab tiv taus qhov hluav taws xob Ntau dua lossis sib npaug rau 3000 V yam tsis muaj kev puas tsuaj, uas yog qhov yuav tsum tau ua nyob rau hauv qhov kev sib tw khiav sib koom ua ke. Hnav- cov ntaub qhwv uas tiv taus raug kuaj xyuas ntawm Shore hardness Ntau dua lossis sib npaug li 80 HA thiab yuav tsum muaj sia nyob 300,000 lub voj voog sib tsoo yam tsis muaj kev puas tsuaj, muab ob mus rau peb npaug ntawm kev pabcuam lub neej ntawm tus qauv roj hmab ncoo hauv kev ua haujlwm tsuas. Txhua hom ncoo dhau qhov siab - qhov kub tsis tshua muaj kev caij tsheb kauj vab: tsis muaj qhov tawg ntawm -40℃thiab tsis softening ntawm 70℃.
Installation Rules thiab Common Faults
Ua ntej kev teeb tsa, paub meej tias lub ncoo tsis muaj kev puas tsuaj, deformation thiab cov roj stains, thiab tias nws cov thickness sib tw nrog cov xwm txheej. Lub ncoo yuav tsum zaum nruab nrab ntawm cov neeg pw tsaug zog thiab kev tsheb ciav hlau nrog lub hauv paus kev tsheb ciav hlau npog tag nrho nws, tsis muaj kev sib txawv, qhov sib txawv los yog wrinkle, yog li cov khoom sib kis tau sib npaug. Nyob rau siab -ceev taug qab lub ntsej muag insulating ntawm lub ncoo ntsej muag upwards thiab yuav tsum tsis txhob puas; Tom qab kev teeb tsa, kev tiv thaiv rwb thaiv tsev yog rov- sim ua pov thawj tias cov kab hluav taws xob muaj kev nyab xeeb. Peb qhov kev ua txhaum uas feem ntau pom hauv kev pabcuam yog hnav dhau 3 hli, uas tso cai rau kev tsheb ciav hlau thiab cov neeg pw tsaug zog tiv tauj ncaj qha thiab yuav tsum tau kho los ntawm kev hloov nrog cov ntaub ntawv qub; poob ntawm elasticity, uas tshwm sim raws li cov suab nrov txawv txav thiab kev co thiab kho los ntawm kev hloov nrog lub siab tshiab - elasticity ncoo; thiab warping los yog hloov chaw, uas yog los ntawm misaligned installation los yog ib tug tsis sib haum pw tsaug zog thiab yog kho los ntawm re-centering lub ncoo thiab leveling lub sleeper nto. Cov laus lossis cov ntaub qhwv tawg tau hloov pauv hauv cov khoom siv, nrog cov ntsev- tshuaj tsuag- cov qib tiv thaiv tau xaiv rau cov kab ntug hiav txwv thiab qis- kub- cov qib tiv taus rau thaj chaw txias. Fastening-kev ua tau zoo ntawm lub cev raug txheeb xyuas raws li EN 13481-2 thiab cov ntsiab lus tshwj xeeb hauv UIC 864 series.
Cov lus nug nquag
Kuv yuav ua li cas thiaj paub seb lub ncoo yog roj hmab, puas lossis polyurethane?
Kev kuaj pom thiab qhov tawv tawv cais lawv sai sai: cov ntaub ntawv sib xyaw nqa cov txheej txheem steel pom ntawm ntug, polyurethane pads feem ntau nruj rau qhov kov nrog Shore hardness saum 80 HA, thiab cov ntaub qhwv roj hmab khoov tau yooj yim thiab rov qab mus rau qhov zoo.
Cov ntaub qhwv tuab puas tuaj yeem kho qhov ntxhib trackbed?
Tsuas yog nyob rau hauv kev txwv. Thicker pads (10-12 mm) them rau kev sib haum xeeb ntawm 2-3 hli, tab sis lawv yog ib qho kev ntsuas kho; Yog hais tias lub trackbed tseem nyob twj ywm, re-leveling lub ballast los yog slab yog yuav tsum tau es stacking pad thickness.
Vim li cas lub ntsej muag insulating lub ntsej muag yuav tsum taw tes rau saum?
Cov txheej txheej rwb thaiv tsev yog qhov thaiv hluav taws xob rau lub fastening system. Yog hais tias nws fim downward los yog puas lawm, leakage tam sim no yuav luv luv Circuit Court khiav thiab defeat lub signaling system.
Kuv yuav tsum tau txiav txim siab npaum li cas?
Rubber pads rau tus qauv siv lub hauv paus feem ntau teev ntawm 60 ± 10 kN / mm zoo li qub. Hnyav- cov ntaub pua plag yog tawv dua thiab cov ntaub mining nyuaj dua; muab lub qag load, hom pw tsaug zog thiab kab qeb rau tus neeg muag khoom thiab cia qhov kev nruj nruj yuav raug xaiv los ntawm kev teeb tsa fastening system.
Kev tshuaj xyuas cov pawm pads ntau npaum li cas?
Cov ntaub qhwv tau raug tshuaj xyuas ntawm txhua lub voj voog tamping thiab thaum twg tus neeg pw tsaug zog tau rov- zaum, ntxiv rau ntawm txhua ntu uas qhia cov suab nrov txawv txav lossis kev co. Cov kab ntug hiav txwv thiab cov mining xav tau lub sijhawm tshuaj xyuas luv dua vim tias ntsev thiab abrasive nplua ua kom lub ncoo puas.