Ke Kaʻina Loiloi Hana Pohaku

Ke Kaʻina Loiloi Hana Pohaku

ʻO ka hiʻohiʻona koʻikoʻi o ke kaʻina hana hoʻomohala pōhaku wili i ka loiloi a me ka hōʻoia ʻana i kāna hana (me ka nui a me ka pololei, dynamic / static balance, rotational strength, load-bearing capacity, grinding performance, etc.), a laila e alakaʻi ana i ka hoʻolālā maikaʻi ʻia o kāna hana, kaʻina hana, a me ke ʻano. Ma waena o kēia mau kumu, ʻo ka hana wili ʻana o ka pōhaku wili e lilo i mea hōʻike maoli o kona pono hana, e loaʻa ana ka manaʻo nui mai ka poʻe noiʻi. I kēia manawa, hiki ke hoʻokaʻawale ʻia nā mea hana hōʻoia hana pōhaku wili i ʻeono mau ʻano ma muli o nā ʻokoʻa o nā ʻano hana pili ma waena o ka pōhaku wili a me ke kaʻaahi: 1) ʻano mīkini wili kuʻuna; 2) ʻano kaʻaahi poloka paʻa; 3) ʻano hānai laina laina; 4) ʻano hānai ʻai rotary pōʻai puni; 5) kiʻekiʻe-wikiwiki wili wili kū; a me 6) laina ho'āʻo wili kaʻa maoli.

(1) ʻAno Mīkini Maʻamau. Uhlmann et al. Ua noiʻi ʻo [1] i ka hopena o ka wili ʻana i nā ʻāpana i ka maikaʻi o ka ʻili (ka paʻakikī, ka ʻeleʻele, ka mānoanoa papa keʻokeʻo) o nā kaʻa me ka hoʻohana ʻana i ka mīkini ʻili i hōʻike ʻia ma ke Kiʻi 1. Wu et al. [2] hōʻoia i ka hoʻonui ʻana i ka maikaʻi o ke kaʻaahi ma hope o ka wili ʻana me ka hoʻohana ʻana i kahi mea like. Hōʻike ʻia kēia ʻano mea hōʻike wili e ka wikiwiki o ka laina pōhaku wili (a hiki i 30-50 m / s) akā he haʻahaʻa hānai haʻahaʻa (8-16 m / min) [2]; i ka manawa like, ʻaʻole hiki ke hoʻololi i ke kaomi wili. No laila, ʻaʻole hiki i kēia mea hoʻāʻo ke hoʻohālikelike i nā hana wili kaʻa maoli a hiki ke hāʻawi i kahi kuhikuhi no ke aʻo ʻana i ka ʻano huila wili.

Fig.1ʻO ka mīkini hoʻāʻo ʻana i ka ʻili [1]

(2) ʻAno Kaʻa Kaʻa Paʻa Paʻa. Ma muli o ke ʻano o ka hana ʻana i nā pōhaku wili pōhaku no ka wili ʻana i ke kaʻaahi, ua hoʻopili nā loea he nui i ka motika i ka pōhaku wili a hoʻohana i ka maka hope o ka pōhaku wili e wili ai i ka mea hana kaʻa. Kanematsu et al. [3] hōʻoia i ka hana wili ʻana o nā pōhaku wili like ʻole me ka hoʻohana ʻana i ka mea hōʻike wili i hōʻike ʻia ma ke Kiʻi 2. Gu et al. [4] hoʻololi i ka mea hōʻike wili me ke ʻano like me ka hoʻohana ʻana i ka mea hoʻokolohua friction e aʻo ai i ka hana wili ʻana o nā pōhaku wili me nā ʻano nui abrasive ʻokoʻa. Hiki i kēia ʻano mīkini hoʻāʻo ke hoʻohālikelike maikaʻi i ka wikiwiki o ka wili ʻana o ka pōhaku wili, ke kaomi wili, a me nā ʻāpana ʻē aʻe akā ʻaʻole hiki ke hoʻokō i ka neʻe ʻana o ka ʻai ʻai. ʻO ka wili lōʻihi ʻana o kahi wahi kaʻaahi kūloko e hoʻokiʻekiʻe i ka wela o ka pilina ma muli o ka wili ʻana i ka wela, e alakaʻi ana i ka hoʻohaʻahaʻa hana o nā pōhaku wili i hoʻopaʻa ʻia i ka resin i nā wela kiʻekiʻe a hoʻemi i ka mana paʻa abrasive. Eia kekahi, ma lalo o ka mana o ka wili ʻana i ka wela, hiki ke ʻā ke kaʻaahi. No laila, ʻo ke kaʻina hana hoʻokolohua o kēia ʻano mīkini hoʻāʻo pono e noʻonoʻo pono i ka hoʻopili ʻana o ka wili wela ma nā hopena hoʻokolohua.

Fig.2ʻO ka mea hoʻāʻo wili paʻa paʻa ʻo Block Rail[3]

(3) Linear Rail Feed Type. No ka hoʻoponopono ʻana i ka pilikia hānai kaʻa i ka mīkini hoʻāʻo wili o Gu et al. [4], Zhou Kun [80] hoʻohana i ka rack a me ka pinion e hoʻokele i nā kaʻa kaʻa, hiki i unidirectional, laina laina e hānai ana mai 1.6 a 4.0 km / h, e like me ka hōʻike ʻia ma ka Figure 3. Ua hoʻohana pū ʻia ka mīkini hoʻokolohua e aʻo i nā ʻāpana wili ʻokoʻa (pili ʻia [5], helu hānai [6]) [7]. Ua hoʻololi ʻo Huang Guigang [8] i ke ʻano nui o ka BM2015 gantry planer e hoʻomohala i kahi hōʻike wili ikaika, i hōʻike ʻia ma ka Figure 4. ʻO nā mea hana i hoʻohana ʻia i ka 60 kg / m gauge rail ma ka pūnaewele, me ka wikiwiki hānai simulated o 0.3 ~ 4.5 km / h, a hiki ke hoʻokō i ka wili ʻana o ± 50 ° gauge angle. Ua hōʻoia maikaʻi nā mea hana i ka hana wili o ka huila wili CBN i kūkulu ʻia. ʻO ka wikiwiki o ka hana wili kaʻa kaʻa mai ka 3 ~ 24 km / h, ʻoiai ʻo nā wikiwiki i hoʻohālikelike ʻia e kēia ʻano o nā mea wili kaʻa he haʻahaʻa, e kaupalena ana i kona hiki ke hoʻokolohua.

Fig.3Horizontal Linear Rail Feed Grinding Tester[5,6,7]

Fig.4ʻO ka mea hoʻāʻo hoʻoheheʻe ʻana i nā meaʻai meaʻai laina laina Vertical [8]

(4) ʻAno ʻAi ʻAi ʻAi ʻAi ʻAi ʻAi Poʻa Poʻa. ʻO ka Chinese Academy of Railway Science [9], Nanjing University of Aeronautics and Astronautics [10,11], a me Kuffa et al. o Switzerland [12] ua hōʻike i kahi hōʻike ʻai meaʻai rotary circular rail horizontal, i hōʻike ʻia ma ke Kiʻi 5. Ma kēia mea hoʻāʻo, ua mīkini ʻia nā kaʻa i loko o kahi diski a hoʻonohonoho ʻia ma ke ākea; hiki i ka diski kaʻa kaʻa kaʻa kaʻa ma lalo o ka hana a ka mīkini hoʻokele e hoʻohālikelike i ka wikiwiki hānai o ke kaʻa wili. ʻO nā mea hana i hoʻolālā ʻia e ka Chinese Academy of Railway Sciences e hōʻike ana i ke anawaena rail disc ma kahi o 1.6 m, kahi ākea kāʻei wili o 10 mm, a me ka wikiwiki o ka wili ʻana o 10.8 km / h [9]. Ma muli o ka hopena wili o kēia mea hoʻokolohua, hāʻawi ia i ke kākoʻo ʻikepili no ka hoʻomohala ʻana i nā kūlana kauoha no nā huila wili ikaika [9,13,14]. ʻIke ʻia kēia ʻano mea hana ma ke kahua o ka wili ala hao.

Fig.5Cyclical Rail Horizontal Rotation Feed Grinding Tester[19]

(5) Kiekie-Speed ​​Rail Grinding mea ho'āʻo. ʻO ka hui o Wang Hengyu ma Southwest Jiaotong University [15,16] i hoʻolālā i kahi passive high-speed rail grinding tester hiki ke hoʻohālikelike i ka wikiwiki o ka wili ʻana a hiki i 60 ~ 80 km / h, e like me ka mea i hōʻike ʻia ma ka Figure 6. Eia kekahi, ʻo ka hui ʻo Professor Zou Wenjun ma Henan University of Technology [17,18] i hoʻolālā ʻia i kahi huila kiʻekiʻe kiʻekiʻe ʻo Figure. i hoʻonohonoho pono ʻia, a hiki i nā mea hana ke hoʻoponopono i ka hoʻoulu ʻana i ka pōhaku wili a me ke kaomi ʻana. ʻO ke anawaena o waho o ke kaʻa he 150 mm, a ʻo ka kikoʻī o ka pōhaku wili he Φ80 × 10 × 10 mm, hiki ke hoʻohālikelike i ka wikiwiki o ka wili ʻana ma ka pūnaewele o 60 ~ 80 km / h a me nā kaomi wili o 1200 ~ 3200 N. ʻO ke kaomi wili o ka pōhaku wili hiki ke hoʻololi i ka wikiwiki o ka 6 km / h. kaomi o 3200 N. He kuleana koʻikoʻi kēia ʻano mīkini hoʻokolohua i ka hoʻomohala ʻana i nā pōhaku wili kiʻekiʻe.

Fig.6Pahu wili kiʻekiʻe[13]

Fig.7ʻO ka papa hoʻāʻo hoʻoemi hoʻohaʻahaʻa wili kiʻekiʻe[16]

(6) Laina Ho'āʻo Kaʻa Kaʻa Maoli. I loko o nā makahiki he ʻumi i hala iho nei, ua hoʻomaka ʻo Golden Eagle Heavy Industry i ka hoʻomohala ʻana a me ka hoʻolālā ʻana o nā kaʻa wili kaʻa kiʻekiʻe a hoʻokumu i kahi kahua hoʻāʻo wili kaʻa ma Yujiahu, Xiangyang City, Hubei Province. Hōʻike ka Figure 8 i kahi kaʻa wili kaʻa kiʻekiʻe, hiki ke hoʻolako ʻia me nā huila wili 24 (12 ma kēlā ʻaoʻao kēia ʻaoʻao), e hana ana me ka māmā holo ma mua o 60 km/h [15]. Hiki i nā kūlana hana a me nā ʻano hana o ke kaʻa ke hoʻohālikelike piha me nā mea o ka wili kaʻaahi kiʻekiʻe, hiki ke hōʻoia i ka hana ʻoki ʻana o ka pōhaku wili. I ka manawa like, hoʻolako ʻia ke kaʻa me nā pōhaku wili he nui, e ʻae ana i ka hōʻoia ʻana i ka paʻa o ke kaʻina hana pōhaku wili. No laila, ma lalo o ke kūlana o ka hoʻokumu ʻana i kahi ʻōnaehana loiloi piha, ʻo ka loiloi e hiki mai ana a me ka hōʻoia ʻana o ka hana wili huila e kēia kaʻa wili e paʻa i ka waiwai alakaʻi mana.

Fig.8ʻO ka laina hoʻāʻo kaʻa kaʻa maoli [13]

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