Ib qho ntsia hlau hlob, tseem hu ua cov ntsia hlau splined, yog ib hom khawm nrawm los ntawm kev caij tsheb ciav hlau lossis cov hniav sib tw lossis cov pob tw. Cov qauv no muaj cov txiaj ntsig tshwj xeeb, ua rau nws haum rau cov ntawv thov tshwj xeeb uas txheem screws yuav tsis ua raws li. Ntawm no yog nws cov tseem ceeb siv:
High - torque kev siv
Qhov tshwj xeeb tsim (txawm hais tias ntawm tsav lub taub hau lossis raws li Shank) tsim thaj chaw sib cuag loj dua ntawm cov ntsia hlau thiab cov cuab yeej tsav tsheb (piv txwv li cov khoom siv. Qhov no tau txais kev sib cuag tau faib cov hluav taws xob ntau tusyees, ua rau cov ntsia hlau kom kov cov rog siab dua lossis xoob xoob lossis ua rau tsav tsheb. Qhov no ua rau cov ntsia hlau hlob zoo tagnrho rau:
Cov tshuab ua ke hnyav tshuab (piv txwv li, khoom siv khoom siv, kho tsheb pab lwm tus).
Cov qauv sib txuas uas ruaj ntseg, siab - Torque fastening yog qhov tseem ceeb (piv txwv li, cov cav).
Precision Alignment thiab anti -} kev sib hloov
Hauv qee kis, sab cij screws nta raws li lawv shank uas ua phooj ywg nrog kev sib raug zoo hauv cov mating (piv txwv li tus txiv ntoo lossis ib tug tapped lub). Cov ntawv no yog lub xauv tshuab zoo, tiv thaiv cov ntsia hlau los ntawm kev sib hloov ib zaug ntsia. Qhov no yog pab tau rau:
Cov Cheebtsam Yuav tsum muaj cov thooj (piv txwv li cov kws kho tshuab sib txuas lus, cov iav sib dhos).
Cov ntawv thov yuav ua rau kev co lossis cyclic loads (piv txwv li, ib qho cuab yeej siv hluav taws xob), qhov twg hloov tau lub pob tawb.
Tamper tsis kam
Cov drives spring yog tsawg dua li cov qauv phillips, slotted, lossis hex drives. Lawv txoj kev txheeb ze ua rau lawv qee qhov tamper - tiv taus, raws li cov cuab yeej tshwj xeeb yog qhov yuav tsum tau muab tshem tawm. Lawv thiaj li siv nyob rau hauv:
Cov ntsiab lus pej xeem (piv txwv li, cov phiaj xwm hluav taws xob).
Kev ruaj ntseg -} Cov khoom siv rhiab (piv txwv, cov khoom siv kho mob) txhawm rau tshem tawm tsis tau kev tsis tau tso cai.
Chaw -} tsis muaj ib puag ncig
Cov tsav tsheb ntawm cov khoom siv tau tuaj yeem xa lub siab tseem ceeb txawm tias muaj lub taub hau compact taub hau. Qhov no ua rau lawv haum rau kev siv rau qhov chaw tsawg, xws li:
Tej yam siv tau tej yam me me (piv txwv li, cov khoom siv uas zoo, cov neeg hlau.
Automotive cov cheebtsam nrog kev nruj nreem (piv txwv li, cov li qub cav, cov khoom sib kis)).
