Lub log yog dab tsi?
Cov log yog cov khoom puag ncig tsim los yob thaum siv lub zog. Lawv raug cais raws li cov tshuab yooj yim nrog rau levers, wedges, shafts thiab pulleys. Tau kawg, cov log tau nyob ib puag ncig ntev. Thaum nws tsis paub meej thaum lub log tau tsim, cov neeg sau keeb kwm tau pom cov pov thawj rov qab mus rau 4500 BC Log muaj nyob hauv cov ntaub ntawv sib txawv. Qee tus ntawm lawv yog ua los ntawm cov roj hmab, thaum lwm tus yog ua los ntawm polyurethane (PU).
Peb txhua tus paub txog lub log. Nws yog ib qho khoom siv puag ncig nrog lub qhov nyob hauv qhov chaw uas tuaj yeem siv los ua lub qag, tso cai rau nws siv rau txhua lub hom phiaj koj xav tau. Qhov zoo tshaj plaws siv rau cov ntaub pua plag, hardwood lossis pobzeb pem teb. Casters tuaj yeem yog dab tsi. Ib tus tuaj yeem txhais tau tias nws yog lub tog raj kheej ntawm qhov dav dav dua lossis tsawg dua uas tig ntawm lub axis, zoo li lub log ntawm lub tsheb. Cov log yog siv rau ntau lub hom phiaj siv tshuab.
Dab tsi yog casters?
Casters, ntawm qhov tod tes, yog cov cuab yeej siv log uas tsim los siv nrog lwm yam khoom. Koj tuaj yeem pom lawv ntawm cov tshuab ua lag luam, cov rooj zaum hauv chaw ua haujlwm, lub laub khoom noj khoom haus, lub laub tes, thiab lwm yam. Casters feem ntau muaj cov log hauv ib lub thav duab hlau. Lawv raug ntsia siv fasteners uas txuas tus ncej mus rau ib qho khoom muab. Tag nrho cov casters muaj lub log. Cov log yog muab tso rau hauv ib lub thav duab hlau thiab muaj peev xwm dov thaum muaj kev ntxhov siab.
Casters muaj xws li cov log. Tab sis nws yog ntau tshaj li ib lub log. Nws yog ib qho kev sib dhos uas muaj lub log thiab lub nplhaib, qee zaum hu ua " nkhaus" lossis "yoke," thiab nws yog lub bracket uas muaj lub log uas txawv ntawm lub log tsis tu ncua. Yog li thaum koj xav hloov lub "log" nyob rau hauv qab ntawm lub rooj zaum lossis stroller, koj tab tom nrhiav los hloov lub rooj sib txoos. Yog li nco ntsoov ntaus "casters" rau hauv koj lub cav tshawb nrhiav, lossis yog tias koj mus rau tom khw, nug tus neeg muag khoom rau cov casters, tsis yog lub log. Koj yuav txuag tau ntau lub sijhawm.
Casters yog txuas nrog lub fixture los yog cov cuab yeej ua kom lub fixture txav tau. Koj yuav pom casters muaj nyob rau hauv ob hom sib txawv:
1. Cov hom uas muaj lub tiaj tus bracket nrog lub qhov mounting kom koj tuaj yeem kho lwm lub tiaj tiaj tiaj nrog nws - phaj mounting,
2. Los yog hom yam tsis muaj lub tiaj tiaj uas tuaj yeem raug threaded lossis txwv tsis pub muab xauv rau hauv ib qho khoom siv txuas nrog ntawm threaded pivot lossis caij nplooj ntoos hlav tuav clip - qws mount.
Qee hom caster feem ntau muaj xws li:
●rigid casters
● swivel casters
● Kev kho mob casters
● Leveling casters
● Carousel
●Industrial casters
Qhov txawv ntawm lub log thiab casters:
Log thiab casters tsis zoo ib yam. Cov log yog qhov yooj yim dua li cov casters. Raws li tau hais ua ntej, lawv muaj cov khoom puag ncig uas muaj peev xwm dov thaum lub zog siv rau lawv. Casters yog qhov nyuaj dua. Lawv kuj muaj lub log, tab sis cov casters muaj cov ncej hlau uas tso cai rau lawv siv nrog rau lwm yam khoom.
Kuj tseem muaj ntau hom casters dua li cov log tsoos vim tias lawv muaj cov ncej hlau. Piv txwv li, muaj swivel casters, uas nyob raws li lawv lub npe los ntawm kev txhawb nqa kev sib hloov. Lawv tsis tsuas scroll rov qab thiab tawm mus. Piv txwv li, swivel casters tuaj yeem tig los ntawm sab mus rau sab.
Casters yooj yim rau nruab dua lub log. Koj tsis tuaj yeem ntsia hlau lossis lwm yam txuas lub log rau ib qho khoom. Hloov chaw, koj yuav tsum siv lub thav duab, uas yog qhov chaw casters tuaj rau hauv kev ua si. Tag nrho cov casters muaj ib tug ncej (feem ntau yog ua los ntawm stainless hlau los yog txhuas) nyob rau hauv uas lub log yog mounted. Nrog rau cov hlau no koj tuaj yeem yooj yim nruab rau ntawm cov khoom.