Cov kev ua si thiab qojCov khoom

Tsheb kauj vab nrog planetary hub: Folding, lub nroog, txoj kev los yog lub roob. Xyuas cov tswv

Tsheb kauj vab nrog lub planetary hub - yog ib tug theej nyuab mechanism, uas muaj ntau tshaj li 40 qhov chaw thiab cov rooj sib txoos. Tus thawj tsheb ntawm no hom tau tsim nyob rau hauv lub xyoo pua xeem los ntawm Sachs thiab tau chaw tag nrho cov thoob lub ntiaj teb no cov neeg siv.

kev taw qhia

Tom qab ntawd, lub Japanese Shimano Corporation thiab lawv cov neeg sib tw nyob rau hauv lub US - SRAM - zoo tag nrho nws thiab hais rau cov pej xeem four- thiab xya-speed qauv. Txawm tias muaj tseeb hais tias nyob rau hauv nws cov keeb kwm, kev siv ntawm planetary hub tsis tau undergone tej kev hloov, nce cov neeg uas yuav tsum tau uas siv rau nws los ua ke thiab manufacturing, yog qhov ua rau ntawm tus nqi ntawm lub mechanism. Lwm disadvantage ntawm xws li ib tug ua haujlwm system, nyob rau hauv kev sib piv nrog rau lwm cov kev daws teeb meem, raws li nws tsis tshua muaj efficiency nyob rau high school kis tau tus mob ratios.

Scope ntawm kev siv

Txawm nyob rau hauv cov kev phem ntawm cov shortcomings, lub planetary ntaus ntawv yog heev nrov nrog muaj tswvyim thiab txawj buyers, uas khaws lawv cov folding, lub nroog los yog txoj kev tsheb tuam. Tom qab tag nrho, muaj kev tiv thaiv los ntawm dej, hmoov av thiab av mechanism yuav tsum tau tsawg heev txij nkawm thiab muab kav ntev thiab teeb meem-dawb lub lag luam, nrog rau cov nram qab no zoo:

  • Studies nrog planetary hub nyob rau hauv ib tug lossis loj ntau yam uas yuav siav muaj caij xav tau.
  • Ib tug ntau ntawm cov iav ratios muab ib tug xis tsheb tuam nce toj acceleration los yog lwm yam nyuaj seem ntawm kev khiav.
  • Kom meej meej iav hloov yog ua los ntawm txoj kev ergonomic manetok handlebar. Iav hloov tshwm sim txawm thaum lub tsheb kauj vab yog nyob ruaj ruaj.
  • Folding, txoj kev, roob los yog lub nroog tsheb tuam nrog planetary hub yuav tsum tau tsawg heev txij nkawm mechanisms. Ntxiv mus, nyob rau hauv ntau cov nqe lus nws qhia tau hais tias yog tsis muaj yuav tsum tau nqa tawm teem sij hawm txij nkawm ntawm cov rooj sib txoos thiab tshuab vilseta.
  • Nyob rau hauv sib piv rau cov sab nraud mechanisms uas raug kev txom nyem los ntawm ceev coj ntawm lub saw vim nws tsis txaus rau lub system hnub qub, planetary hub ua hauj lwm nyob rau hauv ib tug txawv kev txiav txim. Nyob rau hauv cov ntaub ntawv no, cov kis ntawm lub tsheb kauj vab yog tsuas yog tus feem ntau yooj yim thiab txhim khu kev qha hais tias muab ntev lub lag luam.
  • Tsheb kauj vab nrog planetary hub yog txawm peem rau nrog ib tug txhim khu kev qha ko taw nres.

cons siv

Ntawm cov hoob kawm, uas cov qauv ntawm cov tsheb tsis yog tsis muaj ib co drawbacks. Txawm li cas los, lawv tag nrho tej yam nyob rau hauv zaum kawg xaiv ntawm inexperienced buyers heev tsis tseem ceeb, vim hais tias lub tsheb kauj vab yog yuav niaj hnub siv nyob rau hauv lub nroog, thiab nws tsis tau hais ib qho uas yuav tsum tau. Txawm li cas los, muaj tswvyim thiab txawj critics tsis zam txim rau cov tsheb yog tsis muaj flaws. Tus thawj mention ntawm tus poj luj ntawm lub tsheb tuam, uas yuav ua tau ib tug xeeb txob thaum mus txawv tebchaws lawm ntxhib struts, qhov twg tsis nkaus xis no nrog planetary hub. Xyuas cov tub txawg paub meej tias cov theses li siv hnyav machines thiab units hauv huab loads los yog cov kev ua si disciplines, uas yuav siv sij hawm mus rau hauv tus account txhua txhua gram yog tsis tsim nyog. Tsis tas li ntawd, muaj ntau yam cyclists tsis kam lees yuav planetary hub vim hais tias tsis muaj teeb meem nyob rau hauv kev pab cuam - yog hais tias muaj yog ib tug malfunction, nws tsis yog ib txwm muaj kuab mus nqa tawm ib tug kim kho mechanism. Yog li ntawd peb yuav ua tiag kom koj to taub cov qauv thiab cov yam ntxwv ntawm planetary mechanisms ntawm lawv cov kev siv rau ntau lub hom phiaj.

Ib tug whim los yog yuav tsum?

Yuav luag txhua txhua niaj hnub tsheb tuam muaj ib tug multi-theem kis tau tus mob. Feem ntau cov feem ntau siv rau tsheb tuam txheej gearshift system - ib tug classic tsim ntawd yog ib qho yooj yim kom muaj thiab yog kho. Feem ntau nws tso cai rau switching nyob rau hauv lub chav 10 mus rau 33 velocities uas muab cov kev tsim nyog iav piv nyob rau hauv lub tej yam kev mob. Thaum lub hauv lub tsheb kauj vab kis tau tus mob, uas siv ib tug planetary hub, yog tseem muaj ib tug rarity, raws li ob-wheeled thauj khoom Hydraulic Presses. Txawm li cas los, rau nroog nplij siab no yog feem ntau siv differential iav, uas yog pom zoo rau kev siv tsuas nyob rau hauv lub warmer lub hlis. Kev siv cov budgetary kev txiav txim siab rau ib xyoo puag ncig los yog huab tsav tsheb yuav tsuas ua tau kom ceev coj thiab tsheb tuam nrog planetary hub yuav tsum kim kho. Yog hais tias cov kev xaiv kom tsis txhob nyob rau hauv nruab nrab nqi ya, ces koj yuav tsum npaj kom them rau ob-wheeled "phooj ywg" yog tsis tsawg 5000-6000 USD. Nyob rau hauv cov ntaub ntawv no, lub tsheb kauj vab nrog planetary hub yuav muaj ib tug txaus paj tau paj ntawm kev ruaj ntseg, uas yuav muaj lub tsheb kauj vab txhua txhua hnub.

Lub nra ntawm kev lig kev cai

Attendance tseem ceeb nyob rau hauv cov kev xaiv ntawm kev pom kev yam ntxwv rau lub nroog tsheb tuam muaj nws tus kheej yuag. Yog hais tias nws yog teem planetary lub tes tsho, xyuas taw tes offset chaw ntawm lub ntiajteb txawj nqus mus rau lub rear qag ntawm lub tsheb kauj vab vilseta. Qhov no soj yog hais txog mus rau lub impressive hnyav differential kis tau tus mob nrog tus brake, uas yuav ua tau mus 2 kilograms. Yog li ntawd, cov kev siv ntawm cov tshuaj no nyob rau hauv ib tug compact no kev txaus cai tsis yeej ib txwm. Tom qab tag nrho, lawv yog tsim kev noj mus rau hauv tus account tus yam ntxwv ntawm cia nyob rau hauv cramped tej yam kev mob, thiab tshaj luj yog tsis zoo rau lawv. Yog li ntawd, folding tsheb tuam nrog planetary hub - yog ib tug anachronism rau lub neej niaj hnub. Nws yuav yuav tau saib raws li ib tug raws li txoj cai tus kwv velofetisha, tab sis tsis yog ib tug tswv yim tsev yuav mus txawv tebchaws.

tsis

Xav txog lub ntsiab tsis zoo ntawm cov planetary lub tes tsho, uas yog tas nws daim ntawv thov nyob rau hauv no me me:

  • ib tug yuav muaj kev puas tsuaj rau lub iav hloov mechanism nyob rau hauv nws cov kev muab siab kho kev siv;
  • tsis txaus ntau yam ntawm cov iav ratios;
  • Tes tsho tseem ceeb hnyav ua rau ib tug ua haujlwm ntawm qhov chaw ntawm lub ntiajteb txawj nqus thiab ib qho kev nce nyob rau hauv unsprung hnyav Hardtail thiab ob ncua;
  • eccentric log clamp yog tsis tau tshaj nrog qhov kev txiav txim, vim unreliable fixation yuav puas lub rooj zaum;
  • nrov ncej nrog ntsug dropouts tsis pub coj kom zoo dua ntawm lub planetary hub thiab kev siv cov lug nrog kab rov tav ua rau ib tug ntau nce nyob rau hauv tus nqi ntawm lub tsheb tuam.

tau

Dua li ntawm qhov cuab kev tsis zoo los yog zoo ntawm no tsim, cov kev txiav txim siab zaum kawg txog qhov kev tsimnyog ntawm nws daim ntawv thov nyob nrog lub buyer. Qhov no tswv yim sib cav yog paub tseeb hais tias los ntawm lub heev heev xyuas ntawm tus tswv tsheb kauj vab nrog planetary hub uas yuav zoo siab hlo siv lawv no rau ib tug taug kev nyob rau hauv koj lub sij hawm spare.

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