ʻO ka "Puʻuwai" o nā Tricone Roller Bits: ʻEkolu mau ʻano kumu e hoʻoholo ai i ka pono o ka hana ʻana.

Ma ka ʻimi ʻaila a me ke kinoea a me nā wahi ʻeli honua, kaʻāpana cone wiliua like ia me ka "holoholona kila" e komo hohonu ana i ka lepo, a o ka lawe ana he "puuwai" o keia holoholona. Kākoʻo ia i ka wikiwiki wikiwiki o nā cones roller, hoʻomanawanui i ka paʻakikī o lalo o ka honua a me ka friction, a hoʻoholo pololei i ke ola lawelawe o ka bit a me ka pono o nā hana wili. I kēia lā, e uhaʻi mākou i ʻekolu mau ʻano o ka pahu pahu pahu pahu, e ʻimi ana i nā mea huna ʻenehana ma hope o kēlā me kēia a me nā hiʻohiʻona kahi i maikaʻi ai lākou.

I. Sliding Sealed Rubber Bearing: The Cost-Effective Champion, He kokua hilinai no na hana palupalu a me Medium-hard.

Ma nā hiʻohiʻona wili maʻamau, ʻo ka sliding sealed rubber bearing he "veteran" kahiko me ka helu hoʻohana kiʻekiʻe. ʻAʻole paʻakikī kona ʻano; ʻO ke kumu i loko o kahi pālua friction sliding i haku ʻia me kahi puke pai hao hao a me kahi puʻupuʻu ʻauʻau pale. E like me ʻelua ʻāpana metala i hoʻopili pololei ʻia, hoʻoili ia i ka mana ma o ka hoʻoheheʻe ʻana. No ka pale ʻana i ke komo ʻana o ka wai wili, kahi hui hoʻopaʻa hoʻopaʻa paʻa—e like me nā apo radial seal a me nā gaskets hope—ua hoʻokomoʻia ma kaʻaoʻao o waho o ka lua o ka halihali, a ua hoʻopihaʻia ka lua i ka momona kiʻekiʻe-viscosity e hana i kahi "pale pale."

ʻO nā mea maikaʻi loa o kēia bearing aia ma kona "kūpaʻa" a me ka "kumu kūʻai." Hiki i ka hoʻolālā friction sliding ke hāʻawi like ʻana i ka ukana a me ke kūpaʻa hopena maikaʻi, e ʻae iā ia e hana paʻa ma lalo o ke kaomi wili kiʻekiʻe a me nā kūlana kiʻekiʻe o ka wikiwiki. Hoʻohui ia, hōʻike ia i nā kumukūʻai hana haʻahaʻa a me ka mālama maʻalahi—ma hope o ka ʻaʻahu ʻana, pono e hoʻololi ʻia ka bushing e hoʻihoʻi i ka bit i ka lawelawe. Eia nō naʻe, ʻo ka sila kāpaʻa kona "nāwaliwali": ʻaʻole i ʻoi aku kona pale wela ma mua o 120°C, a ʻo kona palena kūʻē puʻe ma kahi o 50MPa, ʻaʻole pono ia i nā luawai hohonu kiʻekiʻe a i ʻole i ka wā i ʻike ʻia i nā wai wili corrosive.

No laila, ʻo "ke kahua kaua nui" o nā bearings i hoʻopaʻa ʻia i hoʻopaʻa ʻia i loko o nā ʻano palupalu a paʻakikī, e like me ka pālolo, ke one, a me ka limestone. He kūpono loa lākou no ka ʻeli ʻana ma uka,wili kuhikuhi, a me nā hana pūnāwai pāpaʻu kahi e koʻikoʻi ai ka hoʻokele waiwai. Inā kūlike kāu mau koi wili me kēia mau hiʻohiʻona, he koho maikaʻi loa kēia bearing.

II. Rolling Sealed Rubber Bearing: The High-Efficiency Pioneer, A Key Tool for Medium-Hard to Hard Formations

Ke hoʻololi ʻia ka ʻeli ʻana i nā ʻano hana paʻakikī a paʻakikī, e like me ka granite a me ka basalt, ʻaʻole lawa ka maikaʻi o ka hoʻoheheʻe ʻana i nā bearings i hoʻopaʻa ʻia.—a ʻo ia ka wā e hele ai ka ʻōwili ʻia ʻana o nā bearings i hoʻopaʻa ʻia. ʻO kāna hoʻomaikaʻi koʻikoʻi, ʻo ia ke hoʻololi ʻana i ka hui kuʻuna sliding friction me nā mea ʻōwili (nā pōleʻa a i ʻole nā ​​​​paʻa roller). ʻO nā mea ʻōwili a me nā apo i loko / waho i hana ʻia me ka ʻaʻahu kūpaʻa kūpaʻa kiʻekiʻe, ʻoiai e paʻa ana i ka sila palaki a me ka grease-based sealing a lubrication system.

ʻO ka hoʻololi koʻikoʻi loa i lawe ʻia e ka ʻāwili ʻana ʻo ia ka "hoʻohaʻahaʻa hoʻoikaika": hoʻohaʻahaʻa nui ʻia ke kūpaʻa friction,ka bitʻoi aku ka liʻiliʻi o ka torque hoʻomaka, a hiki iā ia ke hoʻokō i nā wikiwiki rotational kiʻekiʻe. Hoʻonui pinepine ʻia ka wikiwiki hoʻoheheʻe mechanical e 10% -30%, ʻo ia hoʻi he mea pono nui no nā papahana e ʻimi ana i ka wili kiʻekiʻe. Eia nō naʻe, loaʻa nō hoʻi ia i nā palena o nā sila ʻōpala—ʻOi aku ka kiʻekiʻe o kona pale wela ma mua o nā bearings sliding, akā hiki wale i 130°C, me ka puʻe kūʻē ma kahi o 60MPa. Eia kekahi, paʻakikī loa nā mea ʻōwili i nā haumia; hiki i nā ʻāpana paʻa i loko o ka wai wili ke hana maʻalahi, no laila ua kau ʻia nā koi kiʻekiʻe ma luna o ka maʻemaʻe o ka wai wili.

Ma muli o kēia mau hiʻohiʻona, hoʻohana nui ʻia nā bearings wili i hoʻopaʻa ʻia no ka wili ʻana ma waena o ka paʻakikī a me ka paʻakikī, e like me nā ʻāpana kū o nā lua hohonu a me ka hohonu hohonu, a me nā papahana wili kiʻekiʻe e koi ana i nā wikiwiki wili mīkini kiʻekiʻe. Ma ke ʻano o ke koho ʻana i ka wai wili, ʻoi aku ka maikaʻi o lākou me ka wai maʻemaʻe a me nā ʻōnaehana wai hoʻoheheʻe haʻahaʻa haʻahaʻa. No ka hāʻawi ʻana i ka pāʻani piha i kā lākou mau pono kiʻekiʻe, pono e pale ʻia ka hoʻohana ʻana i nā wai wili i loaʻa nā ʻāpana paʻa nui e like me ka hiki.

III. Unsealed Rolling Air Bearing: ʻO ke Kiʻekiʻe Kūʻai Kūʻai Kūʻai, He koho kūikawā no nā kaʻina hana hoʻoheheʻe kūʻokoʻa.

I loko o nā hiʻohiʻona wili hohonu kiʻekiʻe a me ka puʻu kiʻekiʻe kiʻekiʻe, e like me nā pūnāwai geothermal a me nā pūnāwai shale gas hohonu, e hāʻule nā sila palaki o nā ʻano halihali mua ʻelua ma muli o nā wela kiʻekiʻe. I kēia manawa, ʻo ka ʻaʻa ʻana o ka ea i hoʻopaʻa ʻole ʻia e lilo i mea hoʻonā pono wale nō. He kūʻokoʻa loa kona hoʻolālā hoʻolālā: hoʻohana ʻo ia i kahi hui friction wili akā hoʻopau loa i ka hui sila. Hoʻopili pololei ʻia ka lua o ka bearing i ka mea hoʻoheheʻe ʻana, a hoʻohana ʻia ka ea kiʻekiʻe a i ʻole ka wai hoʻoheheʻe atomized e like me ke ʻano hoʻoluʻu a lubricating.

Me ka ʻole o nā kaohi o nā sila, ua hoʻokō kona kūpaʻa wela i kahi lele qualitative, a hiki i luna o 200°C, hiki iā ia ke hoʻololi i nā kaiapuni ma lalo o ka honua. I ka manawa like, hoʻomaʻemaʻe mau ka ea kiʻekiʻe i ka lua o ka bearing, ʻaʻole wale ka wehe ʻana i ka wela i hana ʻia e ka friction akā ke kipaku maikaʻi ʻana i nā ʻokiʻoki e pale aku ai i ka ʻaʻahu, e hoʻomaikaʻi nui i ka hilinaʻi i nā wahi paʻakikī. Eia nō naʻe, loaʻa iā ia nā "koi" kūikawā: loaʻa iā ia nā koi kiʻekiʻe loa ma ka ʻōnaehana lako ea, e koi ana i kahi kumu ea paʻa kiʻekiʻe. Eia kekahi, pili pono ke ola o ka lawe ʻana i ka maʻemaʻe o ke kumu ea—inā hui pū nā mea haumia i ke kumu ea, hiki iā ia ke hoʻopilikia maʻalahi i ka lawe ʻana.

ʻO kēia ʻano o ka bearing he mau noi kūikawā, hoʻohana nui ʻia i ka wela kiʻekiʻe kiʻekiʻe a me ke kaomi kiʻekiʻe kiʻekiʻe kiʻekiʻe kiʻekiʻe hohonu luawai, a me nā kaʻina hana kūikawā e like me ka underbalanced drilling a me ka ea drilling. Ma kēia mau kaʻina hana, ʻaʻole hāʻawi wale ka ea kiʻekiʻe i ka lubrication a me ka hoʻomaha ʻana no ka bearing akā pale maikaʻi nō hoʻi i ka hāʻule ʻana o ka luawai, e hoʻokō i ʻelua mau pahuhopu i ka manawa hoʻokahi. E hoʻomaopopo naʻe, ʻaʻole kūpono ia me nā ʻōnaehana wai hoʻoheheʻe wai maʻamau a hiki ke hana i loko o ke kinoea a i ʻole nā ​​mea hoʻoheheʻe ʻana i ka wai.—ʻo ia kāna palena noi kumu.

Ka hōʻuluʻulu manaʻo: Pehea e koho ai i waena o nā ʻekolu Bearings? ʻO nā Kūlana Hana Kūlike ke kī

Ma hope o ka aʻo ʻana e pili ana i nā kikoʻī o kēia mau bearings ʻekolu, ua maopopo ʻaʻole he kiʻekiʻe a haʻahaʻa loa i waena o lākou.—ʻokoʻa wale nō i ke kūpono no nā kūlana hana kikoʻī. Ma nā ʻōlelo maʻalahi, hiki ke hōʻuluʻulu ʻia ka loiloi kumu no ke koho ʻana i ʻekolu mau helu:

No nā hana palupalu a paʻakikī a me nā hana punawai pāpaʻu kahi i manaʻo nui ʻia ai ke kumu kūʻai, e koho i ka paʻi paʻa paʻa; no ka ho'okumu 'ana i ka pa'akikī a me ka wikiwiki o ka wiliwili ki'eki'e, e koho i ka 'oloa i ho'opa'a 'ia; a no ka wela kiʻekiʻe loa, nā pūnāwai hohonu kiʻekiʻe kiʻekiʻe a i ʻole nā ​​​​kaʻina hana kūikawā e like me ke ea ea, ʻo ka ʻalo ʻana o ka ea i hoʻopaʻa ʻole ʻia ke koho wale nō.

Ma ke ʻano he "naʻau" o ka ʻāpana cone roller, pili pono ke koho ʻana i ke kumu kūʻai, kūpono, a me ka palekana o nā hana wili. Manaʻo ʻia e kōkua kēia ʻatikala iā ʻoe e wehewehe i nā ʻokoʻa koʻikoʻi ma waena o nā bearings ʻekolu, e hiki ai iā ʻoe ke koho i ka "naʻau" kūpono no nā papahana wili hoʻomaʻamaʻa a hōʻoia i ka hoʻoheheʻe ʻana i nā manawa a pau.