No ke aha i koho ai ka hapa nui o nā mīkini mining i nā bearings rolling ma mua o nā bearings sliding?

Ma ke ʻano he mea koʻikoʻi a koʻikoʻi i nā huahana mechanical, he kuleana koʻikoʻi nā bearings i ke kākoʻo ʻana i nā shafts rotating. E like me nā ʻano friction ʻokoʻa i loko o ka bearing, ua māhele ʻia ka bearing i ka bear friction rolling (i kapa ʻia ʻo rolling bearing) a me ka sliding friction bearing (i kapa ʻia ʻo sliding bearing). Loaʻa nā ʻano ʻelua o nā bearings i kā lākou mau hiʻohiʻona ponoʻī i ka hoʻolālā, a ʻo kēlā me kēia me kona pono ponoʻī a me nā hemahema i ka hana.

Hoʻohālikelike o ka ʻōwili a me nā bearings maʻamau

1. Hoʻohālikelike i ke ʻano hana a me ke ʻano neʻe

ʻO ka ʻokoʻa loa ma waena o nā bearings rolling a menā bearings maʻamauʻo ka hele ʻana a i ʻole ka ʻole o nā mea ʻōwili.

Loaʻa i nā bearings nā mea ʻōwili (nā pōpō, nā ʻōwili cylindrical, nā ʻōwili tapered, nā wili nila) e hilinaʻi nei i kā lākou hoʻololi ʻana e kākoʻo i ke kumu wili, no laila ʻo ka ʻāpana pili he kiko, a ʻoi aku ka nui o nā mea ʻōwili, ʻoi aku ka nui o nā wahi pili.

Piʻi paʻaʻaʻohe mea ʻōwili a hilinaʻi i nā ʻili paheʻe e kākoʻo i ke kumu ʻōwili, no laila he ʻili ka ʻāpana pili.

 

ʻO ka ʻokoʻa o ke ʻano o nā mea ʻelua e hoʻoholo ai i ke ʻano o ka neʻe ʻana o ka bearing wili, a me ke ʻano o ka neʻe ʻana o ka bearing sliding, no laila ʻokoʻa loa ke kūlana friction.

 

2. Hoʻohālikelike i ka hiki ke lawe

Ma keʻano laulā, ma muli o ka nui o ka halihali ʻana o ka bearing sliding, ʻoi aku ka kiʻekiʻe o kona hiki ke lawe ʻia ma mua o ka bearing rolling, a ʻaʻole kiʻekiʻe ka hiki ʻana o ka rolling bearing e amo i ka haʻahaʻa hopena, akā hiki i ka bearing wai-lubricated piha ke hoʻomanawanui. ʻO kahi haʻahaʻa hopena nui ma muli o ke kuleana o ka cushioning a me ka vibration absorption ma muli o ke kiʻi ʻaila lubricating. Ke kiʻekiʻe ka wikiwiki o ka hoʻololi ʻana, piʻi ka ikaika centrifugal o nā mea ʻōwili i loko o ka ʻōwili wili, a hoʻemi ʻia kona hiki ke haʻi (noise e hiki mai i nā wikiwiki kiʻekiʻe). I ka hihia o nā bearings plain dynamic, hoʻonui ko lākou haʻahaʻa haʻahaʻa me nā wikiwiki kiʻekiʻe.

 

3. Ka hoʻohālikelike o ka friction coefficient a me ka hoʻomaka ʻana o ka friction

Ma lalo o nā kūlana hana maʻamau, ʻoi aku ka haʻahaʻa o ka friction coefficient o nā bearings rolling ma mua o nā bearings maʻamau, a ʻoi aku ka paʻa o ka waiwai. Hoʻopili maʻalahi ka lubrication o nā bearing sliding e nā mea o waho e like me ka wikiwiki a me ka haʻalulu, a ʻokoʻa ka nui o ka friction coefficient.

 

I ka hoʻomaka ʻana, ʻoi aku ka nui o ke kūpaʻa ma mua o ka ʻōwili ʻana no ka mea ʻaʻole i hoʻokumu ʻia ka bearing sliding i kahi kiʻi ʻoniʻoni paʻa, akā liʻiliʻi loa ka hoʻomaka ʻana o ka friction a me ka hana friction coefficient o ka hydrostatic sliding bearing.

 

4. Hoʻohālikelike i nā wikiwiki hana kūpono

Ma muli o ka palena o ka ikaika centrifugal o ka mea ʻōwili a me ka piʻi ʻana o ka mahana o ka bearing, ʻaʻole hiki ke kiʻekiʻe ka wikiwiki o ka bearing rolling, a ua kūpono ia no nā kūlana hana wikiwiki a me ka wikiwiki. ʻAʻole i piha i ka wai lubricated bearings ma muli o ka wela a me ka ʻaʻahu o ka bearing, ʻaʻole kiʻekiʻe ka wikiwiki o ka hana. ʻO ka hana kiʻekiʻe kiʻekiʻe o ka piha wai-lubricated bearings he maikaʻi loa, ʻoi aku ka maikaʻi i ka wā e lubricated ai nā bearings plain hydrostatic me ka ea, a hiki i kā lākou wikiwiki rotational hiki i 100,000 r / min.

 

5. Hoʻohālikelike i ka nalowale o ka mana

Ma muli o ka liʻiliʻi liʻiliʻi liʻiliʻi o nā bearings rolling, ʻaʻole nui ka nui o ko lākou mana, ʻoi aku ka liʻiliʻi ma mua o ka piha ʻana o ka wai lubricated bearings, akā e hoʻonui nui ʻia i ka wā e lubricated a hoʻokomo pono ʻia. He haʻahaʻa ka nalowale o ka mana frictional o nā bearings wai-lubricated piha, akā no nā bearings plain hydrostatic, ʻoi aku paha ka nui o ka nalowale o ka mana ma mua o nā bearings hydrostatic plain ma muli o ka nalo ʻana o ka mana o ka paila aila.

 

6. Hoʻohālikelike i ke ola lawelawe

Ma muli o ka mana o ka pitting waiwai a me ka luhi, ua hoʻolālā ʻia nā bearings rolling no 5 ~ 10 mau makahiki, a i ʻole ke hoʻololi ʻia i ka wā overhaul. ʻO nā pads o nā bearings wai-lubricated piha ʻole ʻia ua ʻeha loa a pono e hoʻololi pinepine ʻia. ʻO ke ola o nā bearings wai-lubricated piha i ka theoretically palena ʻole, akā ma ka hoʻomaʻamaʻa ʻana hiki ke hoʻokō ʻia ka hemahema o ka mea lawe ma muli o ke koʻikoʻi o ke kaʻa uila, ʻoi aku hoʻi no nā bearings paʻa ikaika.

 

7. Hoʻohālikelike i ka pololei o ka hoʻololi ʻana

Loa'a ka pololei o ka rotation ki'eki'e ma muli o ka li'ili'i radial clearance. ʻO ka piha piha ʻana o ka wai lubricated bearing i loko o ka mokuʻāina o ka lubrication palena a i ʻole ka hui ʻana o ka lubrication, a paʻa ʻole ka hana, a koʻikoʻi ka lole, a haʻahaʻa ka pololei. Ma muli o ke alo o ka aila kiʻiʻoniʻoni, ʻo ka piha piha o ka wai-lubricated cushions a hoʻopaʻa i ka vibration me ka pololei kiʻekiʻe. ʻOi aku ka pololei o ka huli ʻana o nā bearings hydrostatic.

 

8. Hoʻohālikelike i nā ʻano ʻē aʻe

Hoʻohana nā huila ʻōwili i ka ʻaila, ka momona a i ʻole ka lubricant paʻa, liʻiliʻi loa ka nui, nui ka nui i ka wikiwiki kiʻekiʻe, pono ke kiʻekiʻe ka maʻemaʻe o ka ʻaila, no laila e koi ʻia e hoʻopaʻa ʻia, akā maʻalahi ke hoʻololi. , a ʻaʻole pono e hoʻoponopono i ka puke pai. No nā bearings maʻemaʻe, ma waho aʻe o nā bearings lubrication wai piha ʻole, ʻo ka lubricant ka wai a i ʻole ke kinoea, nui loa ka nui, ʻoi aku ka kiʻekiʻe o nā koi hoʻomaʻemaʻe aila, pono e hoʻololi pinepine ʻia nā pad bearing, a i kekahi manawa e hoʻoponopono ʻia ka puke pai. .

 

Ke koho ʻana i nā bearings rolling a me nā bearings plain

Ma muli o ka paʻakikī a me ka ʻokoʻa o nā kūlana hana maoli, ʻaʻohe maʻamau i hui pū ʻia no ke koho ʻana i nā bearings rolling a me nā sliding bearings. Ma muli o ka liʻiliʻi friction coefficient, liʻiliʻi hoʻomaka kū'ē, sensitivity, kiʻekiʻe ka pono, a me ka standardization, rolling bearings he maikaʻi loa interchangeability a me versatility, a maʻalahi e hoʻohana, lubricate a mālama, a ua hāʻawi mua ʻia i ke koho, no laila ua hoʻohana nui ʻia lākou. i nā mīkini maʻamau. Loaʻa iā lākou kekahi mau pono kūʻokoʻa, i hoʻohana pinepine ʻia i kekahi mau manawa kahi hiki ʻole ke hoʻohana ʻia nā bearings rolling, kūpono ʻole a i ʻole nā ​​​​pono, e like me kēia mau manawa:

 

1. Ua kaupalena ʻia ka nui o ka radial space, a i ʻole e hoʻokaʻawale ʻia ke kau ʻana

Ma muli o ke apo o loko, ke apo o waho, ka mea ʻōwili a me ka hale paʻa i loko o ka hale, nui ka nui o ka radial o ka rolling bearing, a ua kaupalena ʻia ka noi i kekahi ʻano. Loaʻa nā bearings needle i ka wā e paʻa ai nā ana radial, a inā pono, pono nā bearings maʻamau. No nā ʻāpana kūpono ʻole i ka loaʻa ʻana o nā bearings, a ʻaʻole hiki ke kau ʻia mai ke kuhikuhi axial, a i ʻole kahi e hoʻokaʻawale ʻia ai nā ʻāpana i nā ʻāpana, hoʻohana ʻia nā bearings maʻalahi.

 

2. Nā manawa kūpono kiʻekiʻe

Ke hoʻohana ʻia nā koi kikoʻī kiʻekiʻe, koho ʻia ka bearing sliding, no ka mea, hiki i ka lubricating oil film o ka sliding bearing ke hoʻopaʻa i ka haʻalulu haʻalulu, a ke kiʻekiʻe loa ka pololei, hiki ke koho wale ʻia ka bearing sliding hydrostatic. No ka pololei a me ke kiʻekiʻe-pololei mīkini wili, nā ʻano mea hana pololei, a me nā mea ʻē aʻe, hoʻohana nui ʻia nā bearings sliding.

 

3. Nā manawa hoʻouka kaumaha

ʻO nā bearings rolling, inā paha nā bearings a i ʻole nā ​​​​paʻa wili, hiki ke wela a me ka luhi i nā kūlana kaumaha. No laila, i ka nui o ka ukana, hoʻohana nui ʻia nā bearings sliding, e like me nā wili wili, turbines mahu, aero engine a me nā mīkini mining.

 

4. Nā manawa ʻē aʻe

No ka laʻana, ʻoi aku ka kiʻekiʻe o ka wikiwiki o ka hana, ʻoi aku ka nui o ka haʻalulu a me ka haʻalulu, a me ka pono e hana i loko o ka wai a i ʻole ka media corrosive, a me nā mea ʻē aʻe, hiki ke koho pono ʻia nā bearings sliding.

 

No keʻano o nā mīkini a me nā mea hana, ka hoʻohanaʻana i nā bearings rolling a me nā sliding bearings, ua loaʻa i kēlā me kēia me kona mau pono pono'ī a me nā hemahema, a pono e koho ponoʻia me ka papahana maoli. I ka wā ma mua, hoʻohana maʻamau nā mea hoʻoheheʻe nui a me ka nui i nā bearings sliding i hoʻolei ʻia me ka babbitt, no ka mea hiki iā lākou ke pale i nā haʻahaʻa hopena nui, a ʻoi aku ka paʻa a paʻa. Hoʻohana nui ʻia ka mea liʻiliʻi jaw crusher me nā bearings rolling, he kiʻekiʻe ka maikaʻi o ka hoʻouna ʻana, ʻoi aku ka maʻalahi a maʻalahi hoʻi e mālama. Me ka hoʻomaikaʻi ʻana i ka pae ʻenehana o ka hana ʻana i ka ʻōwili ʻana, hoʻohana ʻia ka hapa nui o nā mea haʻihaʻi nui i nā bearings rolling.