Umsebenzi weebheringi
Iibheringi zebhulorho zisetyenziselwa ukuhambisa amandla ukusuka kwi-superstructure ukuya kwi-substructure, evumela ezi ntlobo zilandelayo zeentshukumo ze-superstructure: Iintshukumo zokuguqulela;kukufuduswa kumkhomba-ndlela othe nkqo nothe tye ngenxa yamandla angaphakathi kwenqwelomoya okanye angaphandle kwenqwelomoya njengomoya kunye nobunzima bobuqu.Iintshukumo ezijikelezayo;ngenxa yamaxesha.Ukuza kuthi ga kumbindi wale nkulungwane, iibheringi ezisetyenziswayo beziquka ezi ntlobo zilandelayo:
· Iphini
· Roller
· Rocker
· Metal sliding iibheringi
Ukuthwala iphini luhlobo lweebheringi ezisisigxina ezithatha ukujikeleza ngokusetyenziswa kwentsimbi.Iintshukumo zoguqulo azivumelekanga.Isikhonkwane esingaphezulu sihlanganiswe phezulu kunye nezantsi semicircularly recessed surfaces kunye nephini eliqinileyo lesetyhula elibekwe phakathi.Ngokwesiqhelo, kukho iminqwazi kuzo zozibini iziphelo zephini ukugcina iphini lingasuki kwizihlalo kunye nokuxhathisa imithwalo yokunyusa xa ifuneka.Ipleyiti ephezulu idityaniswe kwiplate yodwa nge-bolting okanye i-welding.Ipleyiti ephantsi egobileyo ihleli kwipleyiti ye-masonry.I-Rotational Movement ivumelekile.Iintshukumo zeLateral kunye nenguqulelo zoGuqulelo zithintelwe.
Iibheringi zodidi lweRoller
Ukwenziwa kwezicelo zodwa kumatshini wodwa, kusetyenziswa i-roller kunye nebhola.Ibandakanya i-cylindrical rollers kunye neebhola.Kwanele ukuxhathisa ukunyakaza kwenkonzo kunye nokumanzisa ngokuxhomekeke kwizinto ezisetyenzisiweyo.
I-AASHTO idinga ukuba i-rollers yokwandisa ixhotyiswe "ngemivalo yecala enkulu" kwaye ikhokelwa yi-gearing okanye ezinye iindlela zokuthintela ukunyakaza kwecala, i-skewing, kunye ne-creeping (AASHTO 10.29.3).
I-drawback jikelele kulolu hlobo lokuthwala kukuthambekela kokuqokelela uthuli kunye ne-debris.Iintshukumo zelongitudinal zivumelekile.Iintshukumo zeLateral kunye nokujikeleza kuthintelwe.
Uhlobo lweRocker
I-rocker bearing luhlobo lokwandiswa kwebheringi oluza kwiindidi ezininzi.Idla ngokuba nephini phezulu eququzelela ukujikeleza, kunye nomphezulu ogobileyo ezantsi ovumela iintshukumo zoguqulo.I-Rocker kunye ne-pin bearings zisetyenziswa ngokukodwa kwiibhulorho zentsimbi.
Ukutyibilika iibheringi
Ibhodi etyibilikayo isebenzisa ipleyiti yentsimbi enye etyibilika kwenye ukuze ivumele iinguqulelo.Umphezulu we-sliding bearing surface uvelisa amandla okukhuhlana asetyenziswe kwi-superstructure, i-substructure, kunye ne-bearing ngokwayo.Ukunciphisa le friction force, i-PTFE (i-polytetrafluoroethylene) isoloko isetyenziswa njengento etyibilikayo yokuthambisa.I-PTFE ngamanye amaxesha ibizwa ngokuba yiTeflon, ebizwa ngegama elisetyenziswa ngokubanzi le-PTFE.I-Sliding Bearings isetyenziswe yodwa okanye isetyenziswa rhoqo njengenxalenye kwezinye iintlobo zeebheringi.Iibheringi ezicocekileyo ze-sliding zingasetyenziselwa kuphela xa ukujikeleza okubangelwa ukuphambuka kwizixhaso zingenamsebenzi.Ngoko ke zinqandelwe kubude obuyi-15 m okanye ngaphantsi nge-ASHTO [10.29.1.1]
Iinkqubo zokutyibilika kunye ne-coefficient echazwe kwangaphambili ye-friction inokubonelela ngokuzimeleyo ngokunciphisa ukukhawuleza kunye namandla adluliswayo.Izilayidi ziyakwazi ukubonelela ukuchasana phantsi kweemeko zenkonzo, ukuguquguquka kunye nokunyanzeliswa kwe-sliding-displacements nge-sliding movement.Izilayidi ezimile okanye ezingqukuva zihlala zikhethwa kuneendlela ezisicaba zokutyibilika ngenxa yesiphumo sazo sokubuyisela.Izilayidi eziMcaba aziboneleli kubuyisela kwakhona kwaye kukho amathuba okufuduswa emva kweenyikima.
IQela eliPinelweyo
Luhlobo olukhethekileyo lwe-Roller Bearing apho i-Knuckle pin ibonelelwa khona ukugungqa lula.I-knuckle pin ifakwe phakathi kwe-casting ephezulu nasezantsi.Ukuphosa okuphezulu kuncanyathiselwe kwi-Bridge superstructure, ngelixa ukuphosa okusezantsi kuphumle kuthotho lweerola.Ukuthwala isikhonkwane se-Knuckle kunokwamkela iintshukumo ezinkulu kwaye kunokwamkela ukutyibilika kunye nokujikeleza
Iibheringi zeembiza
IPOTHO iqulathe isilinda esingekho nzulu sentsimbi, okanye imbiza, ekwiaxis ethe nkqo enediski ye-neoprene eqina kancinane kunesilinda kwaye ifakwe ngokuqinileyo ngaphakathi.Ipiston yentsimbi ingena ngaphakathi kwesilinda kunye neebhere kwi-neoprene.Izangqa zobhedu ezisicaba zisetyenziselwa ukutywina irabha phakathi kwepiston nembiza.Irabha iziphatha njengolwelo lwe-viscous oluqukuqelayo njengoko kunokwenzeka ukujikeleza.Kuba ukuthwala akuyi kuxhathisa imizuzwana yokugoba, kufuneka kubonelelwe ngesitulo esilinganayo sebhulorho.
IiBearings eziPlain Elastomeric (Jonga iPPT)
Iibheringi ze-Elastomeric eziLaminated
Iibheringi ezenziwe ngamaleko anqamlezileyo erabha yokwenziwa okanye yendalo kwiileyile ezibhityileyo ezibotshelelwe phakathi kweepleyiti zentsimbi.Ezi bheringi ziyakwazi ukuxhasa imithwalo ephezulu ethe nkqo eneziphene ezincinci.Ezi bheringi ziguquguqukayo phantsi kwemithwalo esecaleni.Iipleyiti zentsimbi zithintela iileya zerabha ukuba zingagquma.Iintsimbi ezikhokelayo zibonelelwa ukunyusa umthamo wokumanzisa njengoko iibheringi ze-elastomeric ezithafayo zingaboneleli ngokumanzisa okubalulekileyo.Ngokuqhelekileyo zithambile kwicala elithe tye kwaye ziqinile kwicala elithe nkqo.
Iquka i-elastomeric bearing elaminethiweyo ene-cylinder ekhokelayo embindini wokuthwala.Umsebenzi we-rubber-steel elaminethiweyo inxalenye yokuthwala kukuthwala ubunzima besakhiwo kunye nokubonelela nge-post-isivuno elasticity.Undoqo okhokelayo wenzelwe ukuba ukhubazeke ngokweplastiki, ngaloo ndlela unikezela ngokuchithwa kwamandla okudambisa.Iibheringi zerabha zelothe zisetyenziswa kwiindawo ezishukumayo ngenxa yokusebenza kwazo phantsi kwemithwalo yenyikima.
Ixesha lokuposa: Nov-22-2022