Buttress Threads at Work Yog li no buttress threads are commonly use as: Screws for friction screw presses . Lifting screws rau cov khoom nqa hnyav. Lead screws los yog lub zog screws nyob rau hauv cov cav tov nrog siab loads.
Yuav ua li cas muaj ntau hom kab npauj npaim muaj?
Ob hom ntawm pob tw xov xov siv hauv tshuab.
Yuav ua li cas yog cov hauv qab no muaj tseeb rau cov kab nrib pleb?
7. Dab tsi ntawm cov hauv qab no muaj tseeb rau cov hlua khi? Nqe lus piav qhia: Raws li kev quab yuam tsuas yog siv rau hauv ib qho kev taw qhia hauv lwm qhovyog li siv cov hlua khi. Nqe lus piav qhia: Tr=Trapezoidal threads, 14=Lead(mm), 7=Pitch(mm).
Dab tsi yog lub taub hau lub taub hau?
Cov ntaub ntawv pob tw yog tsim los ua kom muaj zog axial thrust nyob rau hauv ib qho kev coj. Qhov no feem ntau yog7 ° lub kaum sab xis ntawm qhov hnyav ntawm qhov chaw thiab 45 ° lub kaum sab xis ntawm txoj hlua khi, uas muab daim ntawv nrog lub zog zoo shear.
siv hom xov twg?
Xov yog ua los ntawm cov fiber ntau (paj rwb, ntaub plaub, txhob lo lo ntxhuav, linen) lossis hluavtaws fibers (rayon, polyester, nylon). Thaum muaj ntau ntau hom fiber ntau uas tuaj yeem sib tw thiab spun rau hauv xov, muaj ib txhais tes ntawm cov fibers uas siv los xaws, quilting, serging, thiab paj ntaub.
