Anọ m na-arụ ígwè ọrụ ọtụtụ afọ, na-edozikwa ihe dị iche icheakụkụ machining, akụkụ ntụgharịnaakụkụ-egwe ọkasite na igwe igwe CNC na ngwa nkenke. Enwere otu akụkụ nke dị mkpa mgbe niile, nke ahụ bụkwa ihe nkedo.
The arụmọrụ akara ule nke bolts maka ígwè Ọdịdị njikọ na-ekewa n'ime ihe karịrị 10 akara ule dị ka 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, n'etiti nke bolts nke ọkwa 8.8 na n'elu na-mere nke ala-- carbon alloy steel ma ọ bụ ọkara-carbon ígwè na e kpo oku-mere (quenching, tempering), nke a na-akpọkarị bolts ike dị elu, na ndị ọzọ na-akpọkarị bolts nkịtị. Akara ọkwa arụmọrụ bolt nwere akụkụ abụọ nke ọnụọgụgụ, nke na-anọchi anya uru ike tensile ọnụ na ntinye ike nke ngwongwo bolt. Ọmụmaatụ:
Ihe bolts nwere ọkwa arụmọrụ 4.6 bụ:
The nominal tensile ike nke bolt ihe ruru 400MPa;
Ọnụ ego nke ihe mkpuchi bụ 0,6;
Ike ntinye aha nke ihe mkpuchi ahụ ruru ọkwa 400 × 0.6 = 240MPa.
Arụmọrụ ọkwa 10.9 elu-ike bolts, mgbe ọgwụgwọ okpomọkụ, nwere ike iru:
The nominal tensile ike nke bolt ihe ruru 1000MPa;
Ọnụ ego nke ihe mkpuchi bụ 0,9;
Ike ntinye aha nke ihe mkpuchi ahụ ruru ọkwa 1000 × 0.9 = 900MPa.
Ihe akara ngosi bolt pụtara bụ ọkọlọtọ mba ụwa. Bolts nke otu ọkwa arụmọrụ nwere otu arụmọrụ n'agbanyeghị ihe dị iche na ihe ha na mmalite ha. Naanị ọkwa arụmọrụ nwere ike ịhọrọ maka imewe.
Ihe a na-akpọ 8.8 na 10.9 ike akara ule pụtara na shear stress grade of bolts bụ 8.8GPa na 10.9GPa
8.8 Ike tensile ọnụ ọnụ 800N/MM2 Ike mkpụrụ ọnụ 640N/MM2
Ihe mkpuchi izugbe na-eji “XY” egosi ike, X*100=ike ike nke bolt a,X*100*(Y/10)=mpụta ike nke bolt a (n’ihi na dị ka labelụ si dị: nye ike / ike ike =Y/ 10)
Dị ka ọkwa 4.8, ike nkwụsị nke bolt a bụ: 400MPa; ike mkpụrụ bụ: 400*8/10=320MPa.
Ọzọ: igwe anaghị agba nchara bolts na-emekarị akara dị ka A4-70, A2-70, ihe pụtara na-akọwa ma ọ bụghị.
tụọ
A na-enwekarị ụdị nha nha ogologo abụọ n'ụwa taa, otu bụ sistemu metric, na nha nha bụ mita (m), centimeters (cm), millimeters (mm), wdg, nke a na-ejikarị na Ndịda Ebe Ọwụwa Anyanwụ Eshia. dị ka Europe, obodo m, na Japan, na nke ọzọ bụ metric usoro. Ụdị ahụ bụ usoro nke alaeze ukwu, na unit nke nha bụ tumadi sentimita asatọ, nke dabara na usoro ochie na obodo m, nke a na-ejikarị eme ihe na United States, United Kingdom na mba Europe na America ndị ọzọ.
Ntụ metric: (usoro ngụkọ) 1m = 100 cm = 1000 mm
Ntụle inch: (sistemụ octal) 1 inch = 8 inch 1 inch = 25.4 mm 3/8 × 25.4 = 9.52
1/4 nke ngwaahịa ndị a na-eji nọmba na-anọchi anya dayameta nke mkpesa ha, dị ka: 4#, 5#, 6#, 7#, 8#, 10#, 12#
eri
Eriri bụ udi nwere ntule anya helical otu n'otu akụkụ nke mpụta siri ike ma ọ bụ nke dị n'ime. Dabere na njirimara nhazi ya na ojiji ya, enwere ike kewaa ya ụzọ atọ:
eri nkịtị: Ụdị nha nha bụ triangular, ejiri jikọọ ma ọ bụ kechie akụkụ. A na-ekewa eriri nkịtị ka ọ bụrụ eriri na-adịghị mma na nke ọma dị ka pitch, na ike njikọ nke eriri ọma dị elu.
Eriri nnyefe: Ụdị nha nha gụnyere trapezoidal, rectangular, saw-shaped and triangular.
Eriri akara: ejiri maka njikota akara, tumadi eriri ọkpọkọ, eriri a na-agbanye na eriri ọkpọkọ.
Nkewa site na udi:
Eriri dabara ọkwa
Eriri dabara bụ ogo ntọhapụ ma ọ bụ njigide n'etiti eriri ndị a kpụrụ akpụ, na ogo nke dabara bụ nchikota nchikota na nnabata nke na-eme na eriri ime na nke mpụga.
1. Maka eriri inch jikọtara ọnụ, enwere akara ule atọ maka eriri mpụga: 1A, 2A na 3A, yana akara atọ maka eriri ime: 1B, 2B na 3B, ha niile dabara adaba. Ọnụ ọgụgụ ọkwa ọkwa dị elu, otú ahụ ka ọ ga-esikwu ike. N'ime eriri inch ahụ, ngbanwe ahụ na-akọwapụta naanị akara ule 1A na 2A, ngbanwe nke ọkwa 3A bụ efu, yana ngbanwe ọkwa ọkwa 1A na ọkwa 2A nhata. Ọnụ ọgụgụ nke akara ule buru ibu, nke nta nke ntachi obi.
Klas 1A na 1B, klaasị nnabata na-atọ ụtọ nke ukwuu, nke dabara maka nnabata nke eriri ime na nke mpụga.
Klas 2A na 2B bụ klaasị nnabata eri kacha akọwapụta maka usoro ihe nrụnye nke imperial.
Klas 3A na 3B, screwed ka ọ bụrụ nke kacha sie ike, dabara adaba maka ihe ngbochi nwere nnabata siri ike, ma jiri ya mee ihe n'ụdị nchekwa dị oke egwu.
Maka eriri mpụga, akara ule 1A na 2A nwere nnabata dabara adaba, ọkwa 3A enweghị. Nkwenye klaasị 1A bụ 50% buru ibu karịa nnabata klaasị 2A, 75% buru ibu karịa nnabata klaasị 3A, yana nnabata klaasị 2B dị 30% karịa nnabata klaasị 2A maka eriri ime. Klas 1B bụ 50% buru ibu karịa Klas 2B yana 75% buru ibu karịa Klas 3B.
2. Maka metric threads, e nwere akara ule atọ maka eriri mpụga: 4h, 6h na 6g, na akara eriri atọ maka eriri ime: 5H, 6H, na 7H. (A na-ekewa akara ule ziri ezi ọkọlọtọ Japanese na akara ule atọ: I, II, na III, ma ọ na-abụkarị ọkwa II.) N'ime eriri metric, mgbagha bụ isi nke H na h bụ efu. Ntugharị bụ isi nke G dị mma, na mgbagha bụ isi nke e, f na g adịghị mma.
H bụ ọnọdụ mpaghara nnabata a na-ejikarị maka eriri ime, a naghị eji ya eme ihe dị ka mkpuchi elu, ma ọ bụ akwa phosphating dị gịrịgịrị. A na-eji ngbanwe bụ isi nke ọnọdụ G maka oge pụrụ iche, dị ka akwa mkpuchi, ma a na-ejikarị ejikarị eme ihe.
a na-ejikarị g na-etinye ihe mkpuchi dị mkpa nke 6-9um. Ọ bụrụ na eserese ngwaahịa ahụ chọrọ bolt nke 6h, eri ahụ tupu etinye ya na-anabata mpaghara nnabata nke 6g.
A na-ejikọta eriri ahụ nke ọma n'ime H/g, H/h ma ọ bụ G/h. Maka eriri nke eriri ndị a nụchara anụcha dị ka bolts na mkpụrụ, ọkọlọtọ na-atụ aro ka ọ dabara nke 6H/6g.
3. Akara akara
Isi geometric parampat nke ntinye aka na eriri nke onwe
1. Nnukwu dayameta/eze nke dị n'èzí (d1): Ọ bụ dayameta nke cylinder a na-eche n'echiche bụ ebe eriri eri na-adaba. Isi dayameta eri na-anọchi anya dayameta aha nke nha eri ahụ.
2. Obere dayameta / mgbọrọgwụ mgbọrọgwụ (d2): Ọ bụ dayameta nke cylinder a na-eche n'echiche ebe eriri ala na-adaba.
3. Ogologo nha nha (p): Ọ bụ oghere axial n'etiti ezé dị n'akụkụ kwekọrọ na isi abụọ na etiti meridian. Na usoro nke alaeze ukwu, a na-egosi anya nha nha site na ọnụ ọgụgụ ezé kwa inch (25.4mm).
Ndị na-esonụ bụ ndepụta nke nkọwa nkịtị nke nha nha nha (usoro metric) na ọnụ ọgụgụ eze (sistemụ eze ukwu)
1) Metric ezé na-akụ onwe ya:
Nkọwa: S T1.5, S T1.9, S T2.2, S T2.6, S T2.9, S T3.3, S T3.5, S T3.9, S T4.2, S T4. 8, S T5.5, S T6.3, S T8.0, S T9.5
Oghere: 0.5, 0.6, 0.8, 0.9, 1.1, 1.3, 1.3, 1.3, 1.4, 1.6, 1.8, 1.8, 2.1, 2.1
2) eze na-ata onwe ya ụta:
Nkọwapụta: 4#, 5#, 6#, 7#, 8#, 10#, 12#, 14#
Ọnụọgụ ezé: ezé AB 24, 20, 20, 19, 18, 16, 14, 14
A ezé 24, 20, 18, 16, 15, 12, 11, 10
Oge nzipu: Feb-02-2023