Mekhahlelo ea Geometri ea likhoele
Ho Utloisisa Mekhahlelo ea Bohlokoa ea Geometri
- Diameter e kholo (D kapa d)
Bophara bo boholo ke bophara bo boholo ka ho fetisisa ba khoele, bo lekantsoeng ka holimo bakeng sa likhoele tsa ka ntle le motsong oa likhoele tse ka hare. Haholo-holo e khetholla boholo ba bolt kapa screw. Taolo e nepahetseng ea parameter ena e netefatsa ho nepahala ho loketseng le ho tiea ha khokahano.
- Diameter e nyane (D1 kapa d1)
Bophara bo bonyenyane ke bophara bo bonyenyane ka ho fetisisa ba khoele, bo lekantsoeng motsong bakeng sa likhoele tse ka ntle le kutung bakeng sa likhoele tse ka hare. E ama ka ho toba matla a tensile a khoele. Ho etsoa ka mokhoa o nepahetseng oa bophara bo bonyenyane ho bohlokoa bakeng sa ho fumana puisano e nepahetseng lipakeng tsa likhoele tse mating.
- Pitch Diameter (D2 kapa d2)
Bohareng ba li-diameter tse kholo le tse nyane ke moo botenya ba khoele bo lekanang sebaka pakeng tsa likhoele. E susumetsa haholo ho lekana pakeng tsa likhoele 'me ke parameter ea bohlokoa bakeng sa ho lekanya ho nepahala ha khoele. Ho etsa bonnete ba hore molumo o nepahetseng o fella ka botsitso bo betere.
- Pitch (p) - Metric
Leqhubu le bolela sebaka sa axial pakeng tsa likhoele tse haufi. E ama lebelo la kopano le ho nepahala ha kgokelo. Li-pitch tse kholo li thusa ho kopanya kapele, empa li ka fokotsa matla a ho ts'oara, athe liphaephe tse nyane li fana ka likhokahano tse thata, tse nepahetseng haholoanyane tse loketseng lits'ebetso tsa mojaro o moholo.
- Khoele ea Khoele (α)
Khoele ea khoele ke karolo e kenyellelitsoeng e entsoeng ke mahlakore a mabeli a profil ea khoele. Li-angles tse tloaelehileng li kenyelletsa 60° bakeng sa likhoele tsa metric le 55° bakeng sa likhoele tsa British Standard Whitworth (BSW). Li-angles tse kholo li eketsa khohlano, li matlafatsa thepa ea ho itšireletsa, e leng molemo bakeng sa likhokahano tse tsitsitseng.
- Lekhutlo la Lephako (φ)
The angle flank ke angle pakeng tsa lepheko la khoele le mola perpendicular ho axis. Lihlahisoa tse fapaneng li fana ka litlhoko tse khethehileng:
Triangular Threads: E loketse bakeng sa ho tiisa ka kakaretso-morero ka ho itšeha ho ka tšeptjoang.
Likhoele tsa Trapezoidal: E loketse lits'ebetso tse jereng moroalo o boima joalo ka tataiso ea lisebelisoa tsa mochini.
Square Threads: E sebetsa hantle bakeng sa phetisetso ea matla ka lebaka la khohlano e tlase.
Sawtooth Threads: E loketse maemo a ho laela a unidirectional, joalo ka lits'ebetsong tsa hydraulic.
- Tsela ea Khoele
Likhoele tse ka letsohong le letona: Tse atileng haholo, li tiisa ha li reteleha ho ea ka oache.
Likhoele tse ka letsohong le letšehali: Li sebelisoa lits'ebetsong tse ikhethileng moo thepa e thibelang ho lokoloha e lakatsoang, joalo ka lisebelisoa tse ling tse potolohang.
Litlhaloso tse Tloaelehileng bakeng sa Pitch le TPI
Ho khetha molumo o nepahetseng kapa TPI ho bohlokoa bakeng sa ho netefatsa ts'ebetso e nepahetseng. Ka tlase ho na le litlhaloso tse sebelisoang khafetsa:
- Metric Threads (Pitch)
M3: 0.5 limilimithara
M4: 0.7 limilimithara
M5: 0.8 limilimithara
M6: 1.0 limilimithara
M8: 1.25 mm (e mahoashe) / 1.0 mm (e ntle)
M10: 1.5 mm (e mahoashe) / 1.25 mm (e ntle)
M12: 1.75 mm (mahoashe) / 1.5 limilimithara (e ntle)
M16: 2.0 limilimithara (mahoashe) / 2.0 limilimithara (tse ntle)
M20: 2.5 limilimithara (mahoashe) / 2.0 limilimithara (tse ntle)
- Likhoele tsa Inch (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)
Litekanyetso tsa jiometri tsa likhoele li bohlokoa ts'ebetsong le ts'ebetsong ea tsona. Ka ho utloisisa liparamente tsena le ho khetha litlhaloso tse nepahetseng, baenjiniere ba ka etsa bonnete ba hore ho na le litharollo tse tšepahalang le tse sebetsang tse lumellanang le lits'ebetso tse ikhethileng. Hore na o khetha litekanyetso tsa metric kapa tsa moemphera, motsoako o nepahetseng oa molumo le TPI o netefatsa ts'ebetso e nepahetseng le bophelo bo bolelele maemong a fapaneng a indasteri.
Kea leboha ha u bala, haeba u hloka ho bona tse ling tsa seo re u fang sona u ka latela lihokelo tse ka tlase!