He aha ka Punana Torsion Flat?

Pono ʻoe i ka ikaika rotational akā liʻiliʻi loa kahi axial. He kūlana, bulky round-wire torsion spring simply won't fit, e koi ana i ka hoʻolālā hou ʻana o kāu huahana paʻa.

ʻO ka pūnāwai torsion palahalaha kekahi punawai i hana ʻia mai kahi ʻāpana palahalaha, like me ke kila puna, mālama a hoʻokuʻu i ka ikehu rotational. He mea kūpono ia no nā noi me nā palena ākea.

Ke hoʻouna mai kahi ʻenekinia iaʻu i kahi kiʻi no kahi "pūnāwai torsion flat," ʻo kaʻu nīnau mua i nā manawa a pau, "He aha ka pono e hana ai?" He ʻano laulā ka huaʻōlelo, ʻaʻole kahi ʻāpana kikoʻī. It's like asking for a "car" when you need to specify if it's a truck, he sedan, a i ʻole he kaʻa haʻuki. ʻO ke koho ʻana i ke ʻano kūpono o ka puna palahalaha ʻo ia kekahi o nā hoʻoholo koʻikoʻi no ka hōʻoia ʻana i ka hana ʻana o kāu mīkini me ka maʻalahi a hilinaʻi no kona ola lawelawe holoʻokoʻa..

ʻO kahi pūnāwai Spiral Torsion e like me ka Puna Torsion Flat?

You're looking for a simple return spring, aka, huikau ka olelo. ʻIke ʻoe i nā pūnāwai palahalaha like ʻole a manaʻo ʻoe ua hana like lākou a pau, hiki ke alakaʻi i ke kauoha ʻana i ka hapa hewa.

A puna torsion spiral[^1] he kiko'ī ʻano ʻano o puna torsion pālahalaha[^ 2]. It's designed with open coils that do not touch and is best suited for low-rotation applications, maʻamau emi mai 360 degere.

Ke hoʻomanaʻo nei au i ka hana ʻana me kahi hui e hoʻomohala nei i kahi pihi mana kiʻekiʻe no nā lako leo. Ua makemake lākou i kahi maʻalahi, tactile "hoʻi-i-waena" laona. Ua ho'āʻo mua lākou i kahi puna mana liʻiliʻi, akā ua hāʻawi nui ʻia ka hoʻololi ʻana a ua manaʻo ʻole ʻia. ʻO ka hoʻonā ʻana he puna torsion spiral maoli. Ua hoʻolālā mākou i kahi mea i hāʻawi i ka nui kūpono o ka torque ma luna o ka 45-degree rotation. ʻO nā āpau ma waena o nā wili i hōʻoia i ka ʻole o ka hakakā, hāʻawi i ka puʻupuʻu i kēlā uku, ka holo wai a lākou e ʻimi nei.

Ka wehewehe ʻana i nā ʻano

ʻO ke kī o ka pūnāwai torsion spiral ma kona maʻalahi, hoʻolālā hāmama. He nani a maikaʻi no nā hana kikoʻī.

• Kūkulu: It's made from a single strip of rectangular spring steel coiled on one plane. Hoʻopili pinepine ʻia kekahi hopena e hana i kahi heleuma i loko (e hoopili i ke kumu), a ua hoʻokumu ʻia ka ʻaoʻao ʻē aʻe e paʻi i ka ʻāpana kaʻa.
• Hana: E like me ka holo ana o ka mea, ʻoi aku ka ikaika o ka makani i ka pūnāwai, pelu ana i ka mea. The material's resistance to this bending creates the restoring torque. No ka mea, ʻaʻole i hoʻolālā ʻia nā coils e hoʻopā, ʻO ka pane torque he laina a maʻalahi no nā deflection liʻiliʻi. ʻAʻole ia i manaʻo ʻia no nā noi e koi ana i nā huli he nui.

I ka manawa he puna mana (Puna Uaki) ke Koho Pono?

Pono kāu huahana e hoʻihoʻi i ke kaula lōʻihi a i ʻole ke kāʻei, e koi ana i na hoololi piha he nui. Hiki ke hoʻopaʻa ʻia kahi pūnāwai spiral maʻalahi a pau koke.

He puna mana, ʻike ʻia hoʻi he pūnāwai uaki, ʻo ia ke koho kūpono no ka hoʻihoʻi kiʻekiʻe ʻana. ʻO kēia ʻano puna torsion pālahalaha[^ 2] ua hoʻoikaika mua ʻia a i loko o kahi hale, hiki iā ia ke hāʻawi i ka torque maʻamau i nā huli he nui.

ʻO kekahi o kā mākou mea kūʻai nui e hana i nā mea hana ʻoihana, me nā paipu ea hiki ke huki hou ʻia no nā hale hana. ʻO nā pūnāwai i loko o kēia mau mele he mau mea koʻikoʻi. Pono lākou e huki i hope 50 nā kapuaʻi o ka paipu kaumaha me ka maʻalahi a me ka hilinaʻi i nā kaukani manawa. ʻO kēia ka noi maʻamau no kahi puna mana[^ 3]. Ua ʻeha loa ka pūnāwai i loko o ka pahu. I kou huki ʻana i ka hose, ʻoi aku ka paʻa o ka pūnāwai. Ke hoʻokuʻu ʻoe, ʻo ka ikehu i mālama ʻia e huki hou i ka hose i loko. A simple spiral spring couldn't store enough energy or provide enough turns to do that job.

Ka Pono o ka Hale

ʻAʻole like me ka puna wai maʻalahi, a puna mana[^ 3] is a complete system that relies on its housing to function correctly.

• ʻO ka mālamaʻana i ka ikaika: A puna mana[^ 3] is made from a long strip of material that is pre-formed into a tight coil. It is then installed into a housing or case that is slightly larger than its free diameter. This process "pre-loads" the spring with energy.
• Friction and Control: As the spring works, the coils press against each other and the inside of the housing. This controlled friction is part of the design and helps create a flatter, more consistent torque curve compared to a spiral spring. This is why you get a steady pull from a tape measure instead of a force that drops off quickly.

Hiki iā ʻoe ke hoʻohana i kahi pā papa maʻalahi ma ke ʻano he pūnāwai Torsion?

Pono ʻoe i kahi maʻalahi loa, kumu kumu kūʻai haʻahaʻa no kahi hinge maʻamau a i ʻole ka mīkini latch. Me he mea lā ʻoi loa ka punawai wili, and you're wondering if there's a simpler way.

ʻAe, ʻO ka pahu torsion palahalaha ke ʻano maʻalahi o ka pūnāwai torsion palahalaha. It's a straight strip of spring material that provides a restoring torque when twisted, e hana pono ana no ka maʻalahi, nā noi hoʻololi haʻahaʻa.

Ua hana au ma kekahi papahana no ka mea hana mea mahiai. Pono lākou i pūnāwai no ka hana pani ʻana ma kahi poʻi hopper hua. He ʻoʻoleʻa, lepo lepo, a ʻo ke ʻano hana pono e hoʻopunipuni a maʻalahi. We didn't use a coiled spring at all. Ua hoʻolālā mākou i kahi pōkole, ʻāpana pololei o ke kila puna paʻa paʻa. Ua wili ʻia kekahi wēlau i ka hinge, a hoʻomaha kekahi ma ke poʻi. I kou wehe ʻana i ke poʻi, ua wili i ka pahu. Ke hoʻokuʻu ʻoe, ʻaʻole wili ʻia ka lāʻau a hoʻopaʻa i ke poʻi. He mea maʻalahi loa, ʻaneʻane ʻaʻohe kumu kūʻai, a ʻoi aku paha ia ma mua o ke koena o ka mīkini.

Ka maʻalahi ma ka Hoʻolālā

I kekahi manawa ʻo ka hopena maikaʻi loa ʻo ia ka mea liʻiliʻi loa. He laʻana maikaʻi loa ka pā torsion palahalaha o kēia kumu.

• Pehea e hana ai: Hana ʻia kahi pā torsion ma ke kū ʻana i ka torsional (wiliwili) ikaika ma kona loa. ʻAʻole like me nā pūnāwai wili e mālama i ka ikehu ma ke kulou ʻana i ka mea, a pā ʻūhā[^4] mālama i ka ikehu ma o ka wili ʻana. Hoʻoholo ʻia ka nui o ka torque i hāʻawi ʻia e kona lōʻihi, mānoanoa, width, and the material it's made from.
• Noi: ʻOi aku ka maikaʻi o kēia hoʻolālā no nā kihi haʻahaʻa, nā noi hilinaʻi kiʻekiʻe kahi i loaʻa ʻole kahi wahi no kahi coil. It's often found in vehicle suspensions, mau laiki paa, mea paahana pila, a me nā pale kaulike maʻalahi. ʻO kona pōmaikaʻi nui ka lōʻihi loa a me ke kumukūʻai haʻahaʻa.

Hopena

"Flat torsion spring" wehewehe i ka ʻohana o nā hoʻonā. Ke koho ʻana i ka mea kūpono—inā he pūnāwai spiral, a puna mana[^ 3], or a simple pā ʻūhā[^4]—is critical for your design's performance and success.

[^1]: E aʻo e pili ana i nā pūnāwai spiral torsion a me kā lākou mau hiʻohiʻona hoʻolālā kūʻokoʻa i kūpono iā lākou no nā noi kikoʻī.
[^ 2]: E ʻimi i kēia kumuwaiwai no ka hoʻomaopopo ʻana i ka maʻalahi a me ka hoʻohana ʻana o nā pūnāwai torsion palahalaha ma nā ʻano hoʻolālā like ʻole.
[^ 3]: E ʻike i ka hana o nā pūnāwai mana a me ko lākou koʻikoʻi i nā noi hoʻololi kiʻekiʻe.
[^4]: E ʻike i ke ʻano o ka hana ʻana o nā torsion bar a me kā lākou noi ʻana i nā ʻōnaehana mechanical like ʻole.