ʻO ka hoʻonui ʻana i ka noi e hoʻomaikaʻi i ka hilinaʻi ma waena o ka ʻoihana ʻo ia ka mea pono e noʻonoʻo nā ʻenekinia i nā ʻāpana āpau o kā lākou lako.He ʻāpana koʻikoʻi nā ʻōnaehana halihali i loko o ka mīkini a hiki i kā lākou hemahema ke loaʻa i nā hopena pōʻino a me nā kumu kūʻai.He hopena koʻikoʻi ka hoʻolālā bearing i ka hilinaʻi, ʻoi loa i nā kūlana hana koʻikoʻi e pili ana i ke kiʻekiʻe a i ʻole ka haʻahaʻa haʻahaʻa, ka māmā a me nā ea corrosive.Hōʻike kēia ʻatikala i nā mea e noʻonoʻo ai ke kuhikuhi ʻana i nā bearings no nā kaiapuni paʻakikī, no laila hiki i nā ʻenekini ke hōʻoia i ka hilinaʻi kiʻekiʻe a me ka hana lōʻihi loa o kā lākou mea hana.

Aia ka ʻōnaehana bearing i nā mea he nui e like me nā pōpō, nā apo, nā cages a me ka lubrication no ka laʻana.ʻAʻole kū maʻamau nā bearings maʻamau i nā koʻikoʻi o nā kaiapuni paʻakikī a no laila pono e noʻonoʻo kūikawā i kēlā me kēia ʻāpana.ʻO nā mea koʻikoʻi nui ka lubrication, nā mea waiwai, a me ka mālama wela kūikawā a i ʻole nā ​​uhi a ma ka nānā ʻana i kēlā me kēia kumu e hiki ke hoʻonohonoho maikaʻi ʻia nā bearings no ka noi.

Ke hana nei ma ka wela wela

Hiki i nā noi wela kiʻekiʻe, e like me nā mea i hoʻohana ʻia i nā ʻōnaehana actuation i loko o ka ʻoihana aerospace hiki ke hōʻike i nā pilikia no nā bearings maʻamau.Eia kekahi, ke piʻi aʻe nei ka mahana o nā mea hana i ka liʻiliʻi ʻana o nā ʻāpana a ua hoʻonui ʻia ka mana-density, a he pilikia kēia no ka bearing awelika.

Lubrication

He mea nui ka lubrication ma aneʻi.Loaʻa i nā ʻaila a me nā momona nā mahana hana kiʻekiʻe loa ma ia manawa e hoʻomaka ai lākou e hoʻohaʻahaʻa a evaporate wikiwiki e alakaʻi i ka hāʻule ʻole o ka halihali.Hoʻopili pinepine ʻia nā momona maʻamau i kahi wela kiʻekiʻe ma kahi o 120°C a hiki i kekahi mau momona wela kiʻekiʻe maʻamau ke pale aku i nā mahana a hiki i 180°C.

Eia nō naʻe, no nā noi e koi ana i nā mahana kiʻekiʻe aʻe, loaʻa nā greases lubricating fluorinated kūikawā a hiki ke loaʻa nā mahana ma mua o 250°C.Inā ʻaʻole hiki ke hoʻomaʻamaʻa wai, ʻo ka lubrication paʻa kahi koho e hiki ai i ka hana haʻahaʻa haʻahaʻa hilinaʻi ma nā mahana kiʻekiʻe.I kēia hihia, ua ʻōlelo ʻia ka molybdenum disulphide (MOS2), tungsten disulphide (WS2), graphite a i ʻole Polytetrafluoroethylene (PTFE) ma ke ʻano he lubricants paʻa no ka mea hiki iā lākou ke ʻae i nā wela kiʻekiʻe loa no ka manawa lōʻihi.

Nā mea waiwai

I ka wā e pili ana i nā mahana ma mua o 300 ° C pono ke apo kūikawā a me nā mea kinipōpō.ʻO AISI M50 kahi kila wela kiʻekiʻe i ʻōlelo pinepine ʻia e like me ka hōʻike ʻana i ka lole kiʻekiʻe a me ke kūpaʻa luhi i nā wela kiʻekiʻe.ʻO BG42 kekahi kila wela kiʻekiʻe i loaʻa ka paʻakikī wela maikaʻi ma 300 ° C a ʻike pinepine ʻia no ka mea he kiʻekiʻe kiʻekiʻe o ka pale ʻana i ka corrosion a ʻaʻole hoʻi i hiki ke luhi a ʻaʻahu i nā wela wela.

Pono nō hoʻi nā hīnaʻi wela kiʻekiʻe a hiki ke hoʻolako ʻia i nā mea polymer kūikawā me ka PTFE, Polyimide, Polyamide-imide (PAI) a me Polyether-ether-ketone (PEEK).No ke kiʻekiʻe wela o ka aila lubricated nenoai e hali ana hīnaʻi hiki ke hanaia mai keleawe, keleawe a me ke kala-plated kila.

ʻO nā uhi a me ka mālama wela

Hiki ke hoʻohana ʻia nā ʻāpana kiʻekiʻe a me nā lapaʻau ʻili i nā bearings e hakakā i ka friction, pale i ka corrosion a hoʻemi i ka ʻaʻahu, pēlā e hoʻomaikaʻi ai i ka hana bearing ma nā wela kiʻekiʻe.No ka laʻana, hiki ke uhi ʻia nā hīnaʻi kila me ke kālā e hoʻomaikaʻi ai i ka hana a me ka hilinaʻi.I ka hihia o ka lubricant hāʻule / pōloli, hana ke kala-plating e like me ka lubricant paʻa, e ʻae ana i ka bearing e hoʻomau i ka holo no kahi manawa pōkole a i kahi kūlana pilikia.

ʻO ka hilinaʻi ma ka wela haʻahaʻa

Ma ka ʻaoʻao ʻē aʻe o ka pālākiō, hiki ke pilikia nā haʻahaʻa haʻahaʻa no nā bearings maʻamau.

Lubrication

Ma nā noi wela haʻahaʻa, no ka laʻana, nā noi hoʻoheheʻe cryogenic me nā mahana ma kahi o -190°C, lilo nā lubrication aila i ka waxy e hopena ai i ka hāʻule ʻana o ka bearing.ʻO ka lubrication paʻa e like me MOS2 a i ʻole WS2 he kūpono no ka hoʻomaikaʻi ʻana i ka hilinaʻi.Eia kekahi, i loko o kēia mau noi, hiki i ka media i pumped ke hana e like me ka lubricant, no laila pono e hoʻonohonoho kūikawā nā bearings e hana i kēia mau haʻahaʻa haʻahaʻa me ka hoʻohana ʻana i nā mea hana maikaʻi me ka media.

Nā mea waiwai

ʻO kahi mea hiki ke hoʻohana ʻia no ka hoʻomaikaʻi ʻana i ke ola luhi o ka bearing a me ke kūpaʻa ʻaʻahu ʻo SV30® - he kila martensitic ma o ka paʻakikī, kiʻekiʻe ka nitrogen, ke kila pale ʻino.Paipai ʻia nā pōpō seramika no ka mea hāʻawi lākou i ka hana ʻoi aku ka maikaʻi.ʻO nā ʻano mechanical inherent o ka mea, hāʻawi lākou i ka hana maikaʻi loa i nā kūlana lubrication maikaʻi ʻole, a ʻoi aku ka maikaʻi o ka hana hilinaʻi ma nā haʻahaʻa haʻahaʻa.

Pono e koho ʻia nā mea paʻa e like me ke kūpaʻa a hiki i nā koho maikaʻi ma aneʻi e komo pū me PEEK, Polychlorotrifluoroethylene (PCTFE) a me PAI plastics.

Hoʻomaʻamaʻa wela

Pono e mālama ʻia nā apo no ka hoʻomaikaʻi ʻana i ke kūpaʻa ʻana o ke ana ma nā wela haʻahaʻa.

Hoʻolālā kūloko

ʻO kahi noʻonoʻo hou aʻe no ka hana ʻana i nā wela haʻahaʻa ʻo ia ka hoʻolālā kūloko o ka bearing.Hoʻolālā ʻia nā bearings me kahi pae o ka pāʻani radial, akā i ka emi ʻana o ka mahana, e hoʻemi ʻia nā ʻāpana bearing a no laila e hoʻemi ʻia ka nui o ka pāʻani radial.Inā emi ka pae o ka pāʻani radial i ʻole i ka wā o ka hana ʻana, e hopena kēia i ka hāʻule ʻana o ka bearing.Pono e hoʻolālā ʻia nā bearings i manaʻo ʻia no nā noi wela haʻahaʻa me ka pāʻani radial hou aʻe i nā wela lumi e ʻae ai i kahi pae kūpono o ka pāʻani radial hana ma nā wela haʻahaʻa.

Ka mālama ʻana i ke kaomi ʻana o ka ʻūhā

I loko o ka ultra-high vacuum environment e like me nā mea i loaʻa i ka hana uila, semiconductors a me nā LCD, hiki ke emi ke kaomi ma mua o 10-7mbar.Hoʻohana pinepine ʻia nā bearings ʻūhā kiʻekiʻe loa i nā lako hana i loko o ke kaiapuni hana.ʻO kekahi palapala hoʻoheheʻe maʻamau ʻo ka turbomolecular pumps (TMP) e hoʻohua ai i ka vacuum no nā wahi hana.Ma kēia noi hope e koi pinepine ʻia nā bearings e hana i ka wikiwiki kiʻekiʻe.

Lubrication

ʻO ka lubrication i kēia mau kūlana he kī.Ma ia mau ʻūhā kiʻekiʻe, hoʻoheheʻe ʻia nā ʻaila lubrication maʻamau a hemo pū kekahi, a ʻo ka nele o ka lubrication kūpono hiki ke hopena i ka hāʻule ʻana o ka halihali.No laila pono e hoʻohana ʻia ka lubrication kūikawā.No nā kaiapuni maloʻo kiʻekiʻe (hiki i ka 10-7 mbar) hiki ke hoʻohana ʻia nā momona PFPE no ka mea ʻoi aku ka nui o ka pale ʻana i ka evaporation.No nā kaiapuni maloʻo ultra-kiʻekiʻe (10-9mbar a ma lalo) pono e hoʻohana ʻia nā lubricants paʻa a me nā uhi.

No nā kaiapuni māmā (ma kahi o 10-2mbar), me ka hoʻolālā akahele a me ke koho ʻana i ka momona momona kūikawā, nā ʻōnaehana halihali e hāʻawi i nā manawa lōʻihi o ke ola ma mua o 40,000 mau hola (ma kahi o 5 mau makahiki) o ka hoʻohana mau ʻana, a hana i nā wikiwiki kiʻekiʻe. loaa.

ʻO ke kūpaʻa ʻino

Pono e hoʻonohonoho kūikawā ʻia nā bearings i manaʻo ʻia no ka hoʻohana ʻana i kahi kaiapuni corrosive no ka mea hiki ke ʻike ʻia i nā waikawa, alkalis a me ka wai paʻakai ma waena o nā kemika corrosive.

Nā mea waiwai

He mea koʻikoʻi ka noʻonoʻo ʻana o nā mea no nā kaiapuni corrosive.Hiki ke ʻinoʻino ʻia nā kila haʻahaʻa maʻamau, e alakaʻi ana i ka hāʻule mua ʻana.I kēia hihia, pono e noʻonoʻo ʻia nā mea apo SV30 me nā pōpō seramika no ka mea ua kūpaʻa lākou i ka ʻino.ʻO ka ʻoiaʻiʻo, ua hōʻike ʻia nā haʻawina e hiki i nā mea SV30 ke lōʻihi i nā manawa he nui ma mua o nā kila pale ʻino ʻē aʻe i loko o kahi kaiapuni paʻakai.Ma nā ho'āʻo paʻakai paʻakai ʻo SV30 kila wale nō e hōʻike i nā hōʻailona liʻiliʻi o ka ʻino ma hope o 1,000 mau hola o ka hoʻāʻo ʻana i ka paʻakai (e nānā i ka pakuhi 1) a ʻike maopopo ʻia ke kūpaʻa kiʻekiʻe o SV30 ma nā apo hoʻāʻo.Hiki ke hoʻohana ʻia nā mea pōpō seramika kūikawā e like me Zirconia a me Silicon Carbide no ka hoʻonui ʻana i ke kūpaʻa o ka bearing i nā mea corrosive.

Loaʻa i nā mea hou aʻe mai ka lubrication media

ʻO ke kaiapuni paʻakikī hope loa ʻo ia nā noi kahi e hana ai ka media ma ke ʻano he lubricant, no ka laʻana nā refrigerants, wai, a i ʻole ka wai hydraulic.I loko o kēia mau noi a pau, ʻo ka mea nui ka noʻonoʻo nui ʻana, a ʻo SV30 - nā bearings hybrid ceramic i ʻike pinepine ʻia e hāʻawi i ka hopena kūpono a hilinaʻi.

Ka hopena

Hōʻike nā kaiapuni koʻikoʻi i nā luʻina hana he nui i nā bearings maʻamau, no laila e hāʻule mua lākou.I kēia mau noi pono e hoʻonohonoho pono ʻia nā bearings i kūpono lākou no ke kumu a hāʻawi i ka hana lōʻihi maikaʻi loa.No ka hōʻoia ʻana i ka hilinaʻi kiʻekiʻe o nā bearings pono e uku ʻia i ka lubrication, nā mea waiwai, nā uhi ʻili a me ka mālama wela.