He aha kāu e hoʻohana ai i kahi ikaika liʻiliʻi iā ia e hoʻokiʻekiʻe i kāu kaʻa? ʻAe, he jack hiki ke lawe ʻia me ke kaʻa e hana i nā hana mechanical maʻamau. Eia naʻe, ma waho aʻe o kēia jack portable, aia nā jacks like ʻole i loaʻa ma ka mākeke. Hiki ke hoʻokaʻawale ʻia nā Jacks e like me ke ʻano hana hana ikaika. Loaʻa iā mākou nā jacks mechanical, jacks uila, hydraulic jacks a me pneumatic jacks. Hiki i kēia mau ʻano jacks ke hāpai i nā mea koʻikoʻi, akā ʻokoʻa kā lākou kahua noi, hiki ke hāpai a me ka hoʻolālā.

A jack hydrauliche mea hana mīkini e hoʻohana ana i ka mana wai e hana. Me ke kōkua o nā jacks hydraulic, hiki ke hāpai maʻalahi i nā mea kaumaha me ka liʻiliʻi o ka ikaika. ʻO ka maʻamau, hoʻohana ka mea hāpai i nā cylinders hydraulic e hoʻohana i ka mana mua. Loaʻa i nā jacks hydraulic ka nui o nā noi i nā ala kaʻa, pale, kūkulu, mokulele, nā lako lawe ukana, nā mea kanu hydroelectric, nā mining a me nā kahua hāpai. ʻO ka neʻe ʻana a me ka maʻalahi o ka jack speed variable ma lalo o nā haʻahaʻa ʻokoʻa a i ʻole nā ​​​​haawe kiʻekiʻe e kūpono i ka jack hydraulic no nā mea āpau ma luna. Pēlā nō, hiki i ka hoʻohana ʻana i nā jack hydraulic ke hāʻawi i ka hiki ke hoʻokiʻekiʻe ʻoi aku ma luna o nā mamao.

Ke nānā mākou i hope i ka mōʻaukala, ua hāʻawi ʻia ka patent no ka jack hydraulic portable iā Richard Dudgeon i ka makahiki 1851. Ma mua o kēia, ua noi ʻo William Joseph Curtis i kahi patent Pelekane no nā jack hydraulic ma 1838.

ʻO nā pahu hoʻopaʻa aila a i ʻole nā ​​pahu hoʻopaʻa, nā puʻupuʻu hydraulic, nā pāpaʻi, nā kiwi hoʻopaʻa a me nā kiwi hoʻokuʻu he mau mea koʻikoʻi ia o nā jack hydraulic, e kōkua i ka hāpai ʻana i nā mea kaumaha. E like me kēlā me kēia ʻōnaehana hydraulic, e mālama ka pahu mālama aila i ka ʻaila hydraulic a hāʻawi i ka ʻaila hydraulic pressurized i ka cylinder pili me ke kōkua o ka hydraulic pump. ʻO kahi pahu hoʻopaʻa i loaʻa ma waena o ka cylinder a me ka pamu e kuhikuhi i ke kahe. Ke komo ka wai i loko o ka pahu hydraulic, hoʻonui ka piston a kaomi i ka lua hydraulic cylinder. Ma hope o ka pau ʻana o ka hana, hoʻohana ʻia ka valve hoʻokuʻu e hoʻihoʻi i ka piston hydraulic. E hilinaʻi ka mana o ka reservoir a i ʻole buffer tank i ka noi ʻaila hydraulic no ka cylinder e hoʻonui a hoʻihoʻi. ʻO ka ʻike kikoʻī hou aku e pili ana i nā jack hydraulic i wehewehe ʻia ma lalo nei.

Pehea ka hana ʻana o kahi jack hydraulic? Hoʻokumu ʻia ke kumu hana o nā jack hydraulic ma ke kumu o ke kaomi ʻana o Pascal. 'O ia ho'i, e puunaue like 'ia ke kaomi i ka wai i mālama 'ia i loko o ka pahu ma nā 'ao'ao a pau. ʻO nā mea koʻikoʻi o kahi jack hydraulic ʻo ia ka hydraulic cylinder, ka ʻōnaehana pumping a me ka ʻaila hydraulic (maʻamau ka aila). E koho i nā wai kīkoki hydraulic ma ka noʻonoʻo ʻana i kekahi mau waiwai wai (e like me ka viscosity, thermal stability, filterability, hydrolytic stability, etc.). Inā koho ʻoe i kahi ʻaila hydraulic kūpono, e hāʻawi ia i ka hana maikaʻi loa, ka lubrication ponoʻī a me ka hana maʻalahi. ʻO ka hoʻolālā jack hydraulic e loaʻa i ʻelua cylinders (hoʻokahi liʻiliʻi a ʻo kekahi nui) i hoʻopili ʻia me nā paipu. Hoʻopiha piha ʻia nā cylinder hydraulic ʻelua me ka ʻaila hydraulic. Ke hoʻohana ʻia kahi kaomi liʻiliʻi i ka cylinder liʻiliʻi, e hoʻoneʻe like ʻia ke kaomi i ka cylinder nui ma o ka wai incompressible. I kēia manawa, ʻike ka cylinder nui i ka hopena hoʻonui ikaika. ʻO ka ikaika i hoʻohanaʻia i nā kiko a pau o nā kinikiniʻelua e like nō ia. Eia naʻe, ʻoi aku ka kiʻekiʻe o ka ikaika i hana ʻia e ka cylinder nui aʻe i ka ʻili. Ma waho aʻe o ka cylinder, e hoʻokomo pū ka jack hydraulic i kahi ʻōnaehana pumping e hoʻokuʻu i ka wai i loko o ka cylinder ma o ka valve ala hoʻokahi. ʻO kēia valve e hoʻopaʻa i ka hoʻihoʻi ʻana o ka aila hydraulic mai ka hydraulic cylinder.

ʻO nā pahu pahua ʻo nā ʻeke pā he ʻelua ʻano o nā jack hydraulic. ʻO ke kāʻei kuʻi i kākoʻo ʻia e ke kumu kū pololei ke kuleana no ke kaupaona ʻana i ke kaumaha o ka mea i hāpai ʻia. Hoʻohana ʻia nā jacks no ka mālama ʻana i nā kumu kaʻa a me nā hale, a me nā haʻalulu pōkole pōkole. Hiki i nā Jacks ke hāʻawi i kahi ākea ākea o ka hāpai ʻana. No laila, hoʻohana mau ʻia kēia mau jacks i ka ʻoihana mining. ʻAʻole like me ka mea hāpai ʻōmole, hoʻokuʻu ka lāʻau ākea i ka crank e hoʻopili ai i ka papa hāpai, a laila hoʻokiʻekiʻe iā ia a kū pololei.

Hiki iā mākou ke huki i nā hopena ma hope o ke kūkākūkā ʻana i kekahi mau ʻenehana hoʻoponopono no nā jack hydraulic. He aha kaʻu e hana ai inā ʻaʻole hiki i ka jack hydraulic ke hāpai i nā mea? ʻO ka ʻaila haʻahaʻa ke kumu o kēia hewa. No laila, ʻo ka mea mua, pono ʻoe e nānā i ka pae ʻaila. Inā ʻike ʻoe ʻaʻole lawa ka nui o ka aila i loko o ka ʻōnaehana, e ʻoluʻolu e hoʻopiha. ʻO ka leaks a i ʻole ka pau ʻana o ke sila kekahi kumu o kēia kūlana. Inā pōʻino ka gasket, pono e hoʻololi i ka gasket ma ka cylinder compression.