Ma Parameters a Geometric of Threads
Kumvetsetsa Magawo Ofunikira a Geometric
- Diameter Yaikulu (D kapena d)
Unyinji waukulu ndi waukulu kwambiri wa ulusi, womwe umapimidwa pamwamba pa ulusi wakunja ndi pa muzu wa ulusi wamkati. Imatsimikizira kukula kwa bolt kapena screw. Kuwongolera kolondola kwa chizindikiro ichi kumatsimikizira kulondola koyenera komanso kulimba kwa kulumikizana.
- Diameter yaying'ono (D1 kapena d1)
M'mimba mwake kakang'ono ndi kagawo kakang'ono kwambiri ka ulusi, kamene kamapimidwa pa muzu wa ulusi wakunja ndi kumtunda kwa ulusi wamkati. Zimakhudza mwachindunji mphamvu yamakomedwe a ulusi. Kupanga molondola kagawo kakang'ono ndikofunikira kuti tikwaniritse mgwirizano wabwino pakati pa ulusi wokwerera.
- Pitch Diameter (D2 kapena d2)
Kuchuluka kwa phula kumakhala pakati pakati pa mainchesi akuluakulu ndi ang'onoang'ono ndipo ndi pamene makulidwe a ulusi amafanana ndi danga pakati pa ulusi. Imakhudza kwambiri kukwanirana pakati pa ulusi ndipo ndi gawo lofunikira pakuyezera kulondola kwa ulusi. Kuwonetsetsa kuti kuchuluka kwake kolondola kumapangitsa kuti kulumikizana kukhale kokhazikika.
- Kutsika (p) - Metric
Phokoso limatanthawuza mtunda wa axial pakati pa ulusi woyandikana nawo. Zimakhudza liwiro la msonkhano komanso kulondola kwa kulumikizana. Mabwalo akulu amathandizira kulumikizana mwachangu koma amatha kuchepetsa mphamvu yogwira, pomwe mazenera ang'onoang'ono amapereka kulumikizana kolimba, kolondola koyenera kugwiritsa ntchito zolemetsa kwambiri.
- Ulusi (α)
Ulusi wa ulusi ndi ulusi wophatikizidwa wopangidwa ndi mbali ziwiri za mbiri ya ulusi. Makona wamba amaphatikiza 60° pa ulusi wa metric ndi 55° pa ulusi wa British Standard Whitworth (BSW). Ma angles akuluakulu amawonjezera kukangana, kukulitsa katundu wodzitsekera, zomwe zimakhala zopindulitsa pamalumikizidwe okhazikika.
- Flank Angle (φ)
Mphepete mwa mbali ndi ngodya yomwe ili pakati pa mbali ya ulusi ndi mzere wa perpendicular to axis. Mapangidwe osiyanasiyana amakwaniritsa zosowa zenizeni:
Ulusi Wautatu: Oyenera kumangirira pazolinga zonse ndi kudzitsekera kodalirika.
Ulusi wa Trapezoidal: Ndiwoyenera kugwiritsa ntchito zolemetsa zolemetsa monga maupangiri a zida zamakina.
Ulusi Wapabwalo: Ndiwothandiza pakufalitsa mphamvu chifukwa cha kukangana kochepa.
Ma Sawtooth Threads: Oyenera kutengera mawonekedwe amtundu uliwonse, monga ma hydraulic systems.
- Ulusi Direction
Ulusi Wakumanja: Zofala kwambiri, zomangika zikatembenuzidwira kunjira ya wotchi.
Ulusi Wakumanzere: Amagwiritsidwa ntchito mwapadera pomwe zinthu zoletsa kumasula zimafunidwa, monga pazida zina zozungulira.
Zodziwika Zodziwika za Pitch ndi TPI
Kusankha kukwera koyenera kapena TPI ndikofunikira kuti muwonetsetse kuti magwiridwe antchito akuyenda bwino. M'munsimu muli zizindikiro zomwe zimagwiritsidwa ntchito kawirikawiri:
- Metric Threads (Pitch)
M3: 0.5 mm
M4: 0.7 mm
M5: 0.8 mm
M6: 1.0 mm
M8: 1.25 mm (yolimba) / 1.0 mm (chabwino)
M10: 1.5 mm (yolimba) / 1.25 mm (chabwino)
M12: 1.75 mm (yolimba) / 1.5 mm (chabwino)
M16: 2.0 mm (yolimba) / 2.0 mm (chabwino)
M20: 2.5 mm (yolimba) / 2.0 mm (chabwino)
- Inchi Threads (TPI)
#4-40 UNC/UNF: 40 TPI (UNC), 48 TPI (UNF)
#6-32 UNC/UNF: 32 TPI (UNC), 40 TPI (UNF)
#8-32 UNC/UNF: 32 TPI (UNC), 40 TPI (UNF)
#10-24 UNC/UNF: 24 TPI (UNC), 32 TPI (UNF)
1/4-20 UNC/UNF: 20 TPI (UNC), 28 TPI (UNF)
5/16-18 UNC/UNF: 18 TPI (UNC), 24 TPI (UNF)
3/8-16 UNC/UNF: 16 TPI (UNC), 24 TPI (UNF)
Magawo a geometric a ulusi ndi ofunikira pakugwira ntchito kwawo ndikugwiritsa ntchito. Pomvetsetsa magawowa ndikusankha zoyenera, mainjiniya amatha kutsimikizira mayankho odalirika komanso okhazikika ogwirizana ndi ntchito zina. Kaya mumasankha miyezo ya metric kapena yachifumu, kuphatikiza koyenera kwa phula ndi TPI kumatsimikizira kugwira ntchito bwino komanso moyo wautali m'mafakitale osiyanasiyana.
Zikomo powerenga, ngati mukufuna kuwona zambiri zomwe timapereka mutha kutsatira maulalo pansipa!