Clearance haum yog ib hom kev haum nyob rau hauv mechanical engineering qhov twg ib feem (lub qhov) yog me ntsis loj dua lwm yam (ncej) tso cai rau ib tug tej yam npaum li cas ntawm clearance los yog qhov chaw ntawm ob qhov chaw. Hom kev haum no feem ntau yog siv thaum tsis muaj lub zog tseem ceeb ntawm ob lub ntsiab lus, thiab thaum muaj kev txav me me lossis kev ua si tau txais. Nov yog qee cov ntsiab lus tseem ceeb ntawm clearance haum:
1. Kev txhais: Nws yog ib qho haum rau qhov chaw mating (lub qhov) loj dua qhov sib thooj (ncej), ua rau me me ntawm kev tshem tawm ntawm lawv.
2. Lub hom phiaj: Nws yog siv rau qhov chaw uas txav ze rau ib leeg, xws li cov kabmob, lossis qhov chaw me me ntawm kev txav mus los.
3. Cov ntawv thov: Feem ntau pom nyob rau hauv daim ntawv thov xws li zawv zawg fits, khiav los yog rotating fits qhov twg me me ntawm clearance yog xav tau rau lubrication los yog thermal expansion.
4. Qhov zoo: Nws tso cai rau kom yooj yim sib dhos thiab disassembly, thiab haum rau thermal expansion yam tsis ua binding los yog jamming.
5. Qhov tsis zoo: Kev tshem tawm ntau dhau tuaj yeem ua rau kev ua si ntau dhau los yog wobbling, uas yuav cuam tshuam rau qhov tseeb lossis kev ruaj ntseg ntawm lub rooj sib txoos.
6. Ua siab ntev: Tus nqi ntawm kev tshem tawm yog teev los ntawm qib kam rau ua, uas txiav txim siab qhov kev lees paub ntawm qhov ntau thiab tsawg rau lub qhov thiab ncej.
7. Kev ntsuas: Clearance feem ntau yog ntsuas nyob rau hauv txhiab ntawm ib nti (rau imperial units) los yog micrometers (rau metric units).
8. Engineering Drawings: Ntawm engineering drawings los yog blueprints, qhov haum yog feem ntau qhia nrog cov cim los yog sau ntawv uas qhia kom meej qhov yuav tsum tau haum thiab tolerances.
9. Cov qauv: Ntau lub teb chaws thiab kev lag luam tej zaum yuav muaj cov qauv sib txawv rau kev tshem tawm, xws li ISO (International Organization for Standardization) cov qauv lossis ANSI (American National Standards Institute) cov qauv.
10. Kev txiav txim siab tsim: Thaum tsim cov khoom siv nrog kev tshem tawm kom haum, engineers yuav tsum xav txog yam xws li cov khoom siv, kev ua haujlwm kub, thiab qhov xav tau ntawm qhov haum.
Clearance haum tsuas yog ib qho ntawm ntau hom kev haum, nrog rau kev hloov pauv haum thiab cuam tshuam haum, txhua tus nrog nws cov kev siv thiab kev xav hauv kev tsim kho tshuab.
Tiv tauj peb yog tias koj muaj lus nug. Peb yog cov kws tshaj lij ntawm txhua yam kev hloov kho qhov chaw thiab cov khoom sib txuas.
