Okwu Mmalite ngwaahịa
Otu mgbanaka kewara n'otu ebe wee gbadaa n'ụdị helical. Nke a na-eme ka onye na-asa ihe na-agbanye ike mmiri n'etiti isi ihe nkedo na mkpụrụ, nke na-eme ka onye na-asa ákwà na-agbasi mbọ ike megide mkpụrụ osisi na eriri bolt siri ike megide akị ma ọ bụ eriri mkpụrụ, na-eme ka esemokwu na iguzogide ntụgharị. Ụkpụrụ ndị ọdabara bụ ASME B18.21.1, SITE 127 B, na Ụkpụrụ ndị agha United States NASM 35338 (nke bụbu MS 35338 na AN-935).
Ndị na-asa mmiri bụ helix aka ekpe na-ekwe ka a na-agbatị eri ahụ n'akụkụ aka nri naanị, ya bụ n'akụkụ elekere. Mgbe a na-etinye mmegharị aka ekpe n'ọkpụkpụ, akụkụ ahụ ewelitere na-ata n'ime ala nke bolt ma ọ bụ aku na akụkụ nke a na-agbanye ya, si otú a na-eguzogide ntụgharị. Ya mere, mmiri ịsacha mmiri adịghị arụ ọrụ na eriri aka ekpe na ebe ndị siri ike. Ọzọkwa, a gaghị eji ha na-ejikọta ya na onye na-ekpo ọkụ dị larịị n'okpuru mmiri mmiri mmiri, n'ihi na nke a na-ekewapụ mmiri mmiri na-esi na-ata ahụhụ n'ime akụkụ nke ga-eguzogide ntụgharị.
Uru nke ndị na-ekpochi mkpọchi mmiri dị na ọdịdị trapezoidal nke onye na-asa ákwà. Mgbe etinyere ya na ibu dị nso ike akaebe nke bolt ahụ, ọ ga-agbagọ ma gbawaa. Nke a na-ebelata ọnụego mmiri nke nkwonkwo bolted nke na-enye ya ohere ịnọgide na-enwe ike karịa n'okpuru otu ọkwa vibration. Nke a na-egbochi ịtọpụ.
Ngwa
Igwe mmiri na-asa mmiri na-egbochi mkpụrụ na bolts ka ọ gbanwee, na-amị amị na ịpụta n'ihi ịma jijiji na torque. Ndị na-asa mmiri dị iche iche na-arụ ọrụ a n'ụzọ dịtụ iche, mana echiche bụ isi bụ ijide akị na bolt n'ọnọdụ. Ụfọdụ ndị na-asa mmiri na-arụ ọrụ a site n'itinye ihe ndị dị n'okpuru ala (bolt) na nut na nsọtụ ha.
A na-ejikarị igwe mmiri na-asa mmiri na ngwa ndị metụtara ịma jijiji yana mwepu nke ngwa ngwa. Ụlọ ọrụ ndị na-ejikarị igwe mmiri na-asa mmiri bụ ihe metụtara njem (ụgbọala, ụgbọ elu, mmiri). Enwere ike iji igwe na-asa mmiri na ngwa ụlọ dịka ndị na-ahụ maka ikuku na akwa akwa (igwe ịsa).
ọnụ ala dayameta |
2 |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
(14) |
|
d |
uru kacha nta |
2.1 |
2.6 |
3.1 |
4.1 |
5.1 |
6.2 |
8.2 |
10.2 |
12.3 |
14.3 |
uru crest |
2.3 |
2.8 |
3.3 |
4.4 |
5.4 |
6.7 |
8.7 |
10.7 |
12.8 |
14.9 |
|
h |
nke aha |
0.6 |
0.8 |
1 |
1.2 |
1.6 |
2 |
2.5 |
3 |
3.5 |
4 |
uru kacha nta |
0.52 |
0.7 |
0.9 |
1.1 |
1.5 |
1.9 |
2.35 |
2.85 |
3.3 |
3.8 |
|
uru crest |
0.68 |
0.9 |
1.1 |
1.3 |
1.7 |
2.1 |
2.65 |
3.15 |
3.7 |
4.2 |
|
n |
uru kacha nta |
0.52 |
0.7 |
0.9 |
1.1 |
1.5 |
1.9 |
2.35 |
2.85 |
3.3 |
3.8 |
uru crest |
0.68 |
0.9 |
1.1 |
1.3 |
1.7 |
2.1 |
2.65 |
3.15 |
3.7 |
4.2 |
|
H |
uru kacha nta |
1.2 |
1.6 |
2 |
2.4 |
3.2 |
4 |
5 |
6 |
7 |
8 |
uru crest |
1.5 |
2.1 |
2.6 |
3 |
4 |
5 |
6.5 |
8 |
9 |
10.5 |
|
Puku iberibe arọ (steel) n'arọ |
0.023 |
0.053 |
0.097 |
0.182 |
0.406 |
0.745 |
1.53 |
2.82 |
4.63 |
6.85 |
|
ọnụ ala dayameta |
16 |
(18) |
20 |
(22) |
24 |
(27) |
30 |
36 |
42 |
48 |
|
d |
uru kacha nta |
16.3 |
18.3 |
20.5 |
22.5 |
24.5 |
27.5 |
30.5 |
36.6 |
42.6 |
49 |
uru crest |
16.9 |
19.1 |
21.3 |
23.3 |
25.5 |
28.5 |
31.5 |
37.8 |
43.8 |
50.2 |
|
h |
nke aha |
4 |
4.5 |
5 |
5 |
6 |
6 |
6.5 |
7 |
8 |
9 |
uru kacha nta |
3.8 |
4.3 |
4.8 |
4.8 |
5.8 |
5.8 |
6.2 |
6.7 |
7.7 |
8.7 |
|
uru crest |
4.2 |
4.7 |
5.2 |
5.2 |
6.2 |
6.2 |
6.8 |
7.3 |
8.3 |
9.3 |
|
n |
uru kacha nta |
3.8 |
4.3 |
4.8 |
4.8 |
5.8 |
5.8 |
6.2 |
6.7 |
7.7 |
8.7 |
uru crest |
4.2 |
4.7 |
5.2 |
5.2 |
6.2 |
6.2 |
6.8 |
7.3 |
8.3 |
9.3 |
|
H |
uru kacha nta |
8 |
9 |
10 |
10 |
12 |
12 |
13 |
14 |
16 |
18 |
uru crest |
10.5 |
11.5 |
13 |
13 |
15 |
15 |
17 |
18 |
21 |
23 |
|
Puku iberibe arọ (steel) n'arọ |
7.75 |
11 |
15.2 |
16.5 |
26.2 |
28.2 |
37.6 |
51.8 |
78.7 |
114 |