Cov kabmob muaj peev xwm = lub zog x cheeb tsam
Bolt muaj ntsia hlau xov, M24 ntsia liaj qhov rooj hla ntu cheeb tsam tsis yog 24 txoj kab uas hla lub voj voog, tab sis 353 square mm, hu ua thaj chaw zoo.
Lub zog tensile ntawm zoo tib yam bolts ntawm chav kawm C (4.6 thiab 4.8) yog 170N / sq. mm
Tom qab ntawd cov kabmob muaj peev xwm yog: 170 × 353 = 60010N.
Raws li kev ntxhov siab ntawm kev sib txuas: muab faib ua qhov zoo tib yam thiab hinged qhov.Los ntawm lub taub hau zoo ib xees: muaj hexagon taub hau, puag ncig lub taub hau, square taub hau, countersunk taub hau thiab hais txog.Hexagon taub hau yog feem ntau siv.Lub taub hau countersunk feem ntau yog siv qhov kev sib txuas yog xav tau
Caij bolt English lub npe yog u-bolt, tsis yog-tus qauv qhov chaw, cov duab yog u-puab ces nws tseem hu ua u-shaped ntsia liaj qhov rooj, ob qho tag nrho ntawm cov xov yuav ua ke nrog cov txiv ntseej, feem ntau yog siv los kho cov raj xws li cov yeeb nkab dej los yog phaj zoo li lub caij nplooj ntoos hlav ntawm lub tsheb, vim txoj kev kho tej yam zoo li cov neeg caij nees, thiaj li hu ua caij bolt.Raws li qhov ntev ntawm cov xov rau hauv cov xov tag nrho thiab tsis yog - tag nrho xov ob pawg.
Raws li cov xov ntawm cov hniav tau muab faib ua ob pawg ntawm cov hniav ntxhib thiab cov hniav zoo, cov hniav ntxhib hauv cov bolts tsis qhia.Cov bolts tau muab faib ua 3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9 thiab 12.9 raws li qib kev ua tau zoo.Cov bolts saum toj no 8.8 qib (nrog rau qib 8.8) yog ua los ntawm cov hlau tsis tshua muaj carbon hlau lossis cov pa roj carbon nruab nrab thiab tau txais kev kho cua sov (quenching thiab tempering).Lawv feem ntau hu ua bolts muaj zog thiab qis dua 8.8 qib (tsis suav qib 8.8) feem ntau hu ua bolts zoo tib yam.
Ordinary bolts tuaj yeem muab faib ua qib A, B thiab C raws li qhov raug.Qib A thiab B yog cov ntsia hlau ua kom zoo thiab qib C yog cov pob zeb ntxhib.Rau steel qauv kev twb kev txuas bolts, tshwj tsis yog tshwj xeeb sau tseg, feem ntau zoo tib yam coarse C class bolts
Post lub sij hawm: Oct-15-2019