Mea holoi puna a holoi palahalaha
wehewehe
Ua māhele ʻia ke apo ma kahi kikoʻī a piʻo i ke ʻano helical.ʻO kēia ka mea e hoʻoikaika ai ka mea holoi i ka pūnāwai ma waena o ke poʻo o ka mea hoʻopaʻa a me ke pani, ka mea e hoʻopaʻa paʻa i ka mea holoi ma luna o ka substrate a me ke kaula bolt e kū pono i ka nut a i ʻole ke kaula substrate, e hoʻonui ai i ke kuʻekuʻe a me ke kū'ē ʻana i ka hoʻololi ʻana.ʻO nā kūlana kūpono ʻo ASME B18.21.1, DIN 127 B, a me United States Military Standard NASM 35338 (MS 35338 a me AN-935 ma mua).
ʻO nā mea holoi puna he helix lima hema a hiki ke hoʻopaʻa ʻia ke kaula ma ka ʻaoʻao lima ʻākau wale nō, ʻo ia hoʻi ma ka ʻaoʻao uaki.Ke hoʻohana ʻia ka neʻe hoʻohuli ʻana i ka lima hema, nahu ka ʻaoʻao hoʻokiʻekiʻe i ka ʻaoʻao ma lalo o ka pahu a i ʻole ka nati a me ka ʻāpana i hoʻopaʻa ʻia ai, no laila e pale aku i ka huli ʻana.No laila, ʻaʻole pono nā mea holoi puna ma nā kaula lima hema a me nā ʻili paʻakikī.Eia kekahi, ʻaʻole pono e hoʻohana pū ʻia me kahi mea holoi paʻa ma lalo o ka mea holoi puna, no ka mea, hoʻokaʻawale kēia i ka mea holoi puna mai ka nahu ʻana i ka mea e pale ai i ka huli ʻana.
Aia ka pōmaikaʻi o nā mea holoi laka puna i ke ʻano trapezoidal o ka mea holoi.Ke hoʻopili ʻia i nā ukana kokoke i ka ikaika hōʻoia o ka bolt, e wili a palahalaha.Hoʻemi kēia i ka helu puna o ka hui bolted e hiki ai iā ia ke mālama i ka ikaika ma lalo o nā pae haʻalulu like.Mālama kēia i ka wehe ʻana.
NĀ PALAPALA:
Kāohi ka mea holoi puna i ka huli ʻana, paheʻe a wehe ʻia nā nati a me nā bolts ma muli o ka haʻalulu a me ka torque.Hana nā mea holoi puna ʻokoʻa i kēia hana ma nā ʻano ʻokoʻa iki, akā ʻo ka manaʻo kumu e paʻa i ka nut a me ka bolt ma kahi.Hoʻokō kekahi mau mea holoi puna i kēia hana ma ka nahu ʻana i ka mea kumu (bolt) a me ka nati me ko lākou mau welau.
Hoʻohana mau ʻia nā mea holoi puna i nā noi e pili ana i ka haʻalulu a me ka paheʻe ʻana o nā mea paʻa.ʻO nā ʻoihana e hoʻohana maʻamau i nā mea holoi puna e pili ana i ka halihali (kaʻa, mokulele, moana).Hiki ke hoʻohana pū ʻia nā mea holoi puna i nā mea pono hale e like me nā mea lawe ea a me nā mea holoi lole (mīkini holoi).
| Dk | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | (14) | |
| d | Min | 2.1 | 2.6 | 3.1 | 4.1 | 5.1 | 6.2 | 8.2 | 10.2 | 12.3 | 14.3 |
| Max | 2.3 | 2.8 | 3.3 | 4.4 | 5.4 | 6.7 | 8.7 | 10.7 | 12.8 | 14.9 | |
| h | 0.6 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | |
| Min | 0.52 | 0.7 | 0.9 | 1.1 | 1.5 | 1.9 | 2.35 | 2.85 | 3.3 | 3.8 | |
| Max | 0.68 | 0.9 | 1.1 | 1.3 | 1.7 | 2.1 | 2.65 | 3.15 | 3.7 | 4.2 | |
| n | Min | 0.52 | 0.7 | 0.9 | 1.1 | 1.5 | 1.9 | 2.35 | 2.85 | 3.3 | 3.8 |
| Max | 0.68 | 0.9 | 1.1 | 1.3 | 1.7 | 2.1 | 2.65 | 3.15 | 3.7 | 4.2 | |
| H | Min | 1.2 | 1.6 | 2 | 2.4 | 3.2 | 4 | 5 | 6 | 7 | 8 |
| Max | 1.5 | 2.1 | 2.6 | 3 | 4 | 5 | 6.5 | 8 | 9 | 10.5 | |
| Kaumaha≈kg | 0.023 | 0.053 | 0.097 | 0.182 | 0.406 | 0.745 | 1.53 | 2.82 | 4.63 | 6.85 | |
| dk | 16 | (18) | 20 | (iwakāluakūmālua) | 24 | (27) | 30 | 36 | 42 | 48 | |
| d | Min | 16.3 | 18.3 | 20.5 | 22.5 | 24.5 | 27.5 | 30.5 | 36.6 | 42.6 | 49 |
| Max | 16.9 | 19.1 | 21.3 | 23.3 | 25.5 | 28.5 | 31.5 | 37.8 | 43.8 | 50.2 | |
| h | 4 | 4.5 | 5 | 5 | 6 | 6 | 6.5 | 7 | 8 | 9 | |
| Min | 3.8 | 4.3 | 4.8 | 4.8 | 5.8 | 5.8 | 6.2 | 6.7 | 7.7 | 8.7 | |
| Max | 4.2 | 4.7 | 5.2 | 5.2 | 6.2 | 6.2 | 6.8 | 7.3 | 8.3 | 9.3 | |
| n | Min | 3.8 | 4.3 | 4.8 | 4.8 | 5.8 | 5.8 | 6.2 | 6.7 | 7.7 | 8.7 |
| Max | 4.2 | 4.7 | 5.2 | 5.2 | 6.2 | 6.2 | 6.8 | 7.3 | 8.3 | 9.3 | |
| H | Min | 8 | 9 | 10 | 10 | 12 | 12 | 13 | 14 | 16 | 18 |
| Max | 10.5 | 11.5 | 13 | 13 | 15 | 15 | 17 | 18 | 21 | 23 | |
| Kaumaha≈kg | 7.75 | 11 | 15.2 | 16.5 | 26.2 | 28.2 | |||||
