Momwe mungasankhire jack jack

Anthu ambiri amadziwa kuti jack ndi chiyani. Ndi iyo, mutha kukweza katundu ndi misa yofunikira kwambiri mpaka kutalika kwina. Mosiyana ndi njira zina zonyamulira, jack nthawi zonse imayikidwa kuchokera pansi. Simungathe kuchita popanda izo ngati mukufuna kusintha gudumu kapena kugwira ntchito ina pansi pa thupi. Chipangizo choterocho chiyenera kuphatikizidwa mu kasinthidwe ka galimoto iliyonse yatsopano, ndipo nthawi zonse iyenera kusungidwa mu thunthu, chifukwa chirichonse chimachitika pamsewu. Koma jack imatha kuthyoka kapena kutayika, zimachitika kuti mukufuna kope lachiwiri kapena chipangizo chomwe chilipo ndichosavuta kugwiritsa ntchito. Funso losankha jack yatsopano likhoza kusokoneza, makamaka ngati kugula koteroko kwapangidwa koyamba.

Pafupifupi ma jakwe onse omwe alipo amagwera m'magulu atatu akuluakulu - makina, ma hydraulic ndi pneumatic.

Malinga ndi kapangidwe kake, mitundu isanu yodziwika bwino ya jacks imatha kusiyanitsa:

1. Sikirini.
2. Rack ndi pinion.
3. Botolo.
4. Kugudubuzika.
5. Mitsamiro yopumira (Selson air jack).

Screw ndi rack ndi pinion lifts ndi zida zamakina chabe, pomwe zokwezera mabotolo ndi zogudubuza zimagwiritsa ntchito ma hydraulic.

Nthawi zambiri, zidazo zimagwiritsidwa ntchito pamanja - pogwiritsa ntchito lever kapena kutembenuza chogwirira. Koma pali zitsanzo zomwe zimayenda pa injini yoyaka mkati mwamagetsi.

Pali mitundu yambiri ya ma screw jacks, koma choyamba, awa ndi zitsanzo zooneka ngati diamondi, zomwe nthawi zambiri zimakhala ndi magalimoto, choncho zipangizo zoterezi zimadziwika bwino kwa oyendetsa galimoto ambiri.



imakhala ndi nsonga zinayi ndi zomangira zolumikiza nsonga zam'mbali za rhombus. Mfundo ya ntchito ndi yophweka kwambiri - pamene wononga imazungulira, nsonga zam'mbali zimayandikirana, ndipo pamwamba ndi pansi zimasiyana, chifukwa chomwe katundu wotsalira pa nsanja kumtunda wa chipangizocho umakwezedwa.

Nthawi zambiri kunyamula sikudutsa matani awiri. Kwa magalimoto okwera, izi ndizokwanira. Kutalika kwakukulu kokweza ndi mkati mwa 2 mm, ndipo chojambula chochepa chimachokera ku 470 mm.

Jacks zotere ndizodziwika kwambiri pakati pa madalaivala chifukwa cha zabwino zingapo:

• kulemera kopepuka ndi miyeso imakulolani kuti munyamule mu thunthu la galimoto iliyonse;
• kuphweka ndi khalidwe lapangidwe zimatsimikizira moyo wautali wautumiki (pokhapokha, ndithudi, mankhwalawo ndi abwino);
• kutalika kwapang'onopang'ono komanso kutalika kokwanira kokweza kumapangitsa chipangizocho kukhala choyenera pamagalimoto ambiri;
• mtengo wotsika.

Jack wooneka ngati diamondi alinso ndi zovuta zokwanira:

• mphamvu zochepa zolemetsa;
• malo ang'onoang'ono othandizira ndipo, chifukwa chake, osakhazikika bwino, chifukwa chake ndi bwino kutsimikiziranso katundu wokwezedwa ndi ma props;
• sikothandiza kwambiri wononga makina ozungulira;
• kufunika koyeretsa nthawi zonse ndi kuthirira mafuta.

Pogulitsa palinso zida zopepuka komanso zophatikizika za lever-screw.



Jacks wotere ndi otchipa kwambiri, koma ndi bwino kupeŵa kugula, chifukwa ali ndi mavuto aakulu ndi kukhazikika, makamaka pamtunda wosagwirizana. Kugwa kwa galimoto sikungamuchitire zabwino, koma chinthu chachikulu ndicho chiopsezo cha kuvulala kwakukulu kwa munthu.

, yomwe imadziwikanso kuti hijack (high-jack) kapena high-lift (high-lift), imasiyanitsidwa ndi kutsika kwapamwamba, kukweza kwakukulu - mpaka mita imodzi ndi theka - ndi kuwongolera kosavuta. Pulatifomu yonyamulirayo ili kumtunda kwa njanji, yomwe ili ndi mabowo angapo a latch kutalika kwake konse. Kusuntha njanji ndi nsanja kumachitika pogwiritsa ntchito lever. Mitundu yokwera ndi yotsika imasinthidwa ndikutembenuza chotchinga chotchinga.

Palinso ma jacks amtundu wa rack ndi pinion. Amagwiritsa ntchito zida za nyongolotsi zokhala ndi ratchet, ndipo zimayendetsedwa ndi kuzungulira kwa chogwirira.



Hijack ali ndi kukula kwakukulu komanso kulemera kwake. Zida zoterezi ndizodziwika kwambiri pakati pa eni ake a SUV, komanso omwe amagwiritsa ntchito makina aulimi. Choyika jack chimathandizira kukoka njira yofananira kuchokera mumatope. Ndipo kwa eni magalimoto wamba, iyi si njira yabwino kwambiri.

Choyikapo ndi pinion jack chimafunikira maziko olimba. Kupanda kutero, ndikofunikira kulowetsa nsanja yapadera, apo ayi chidendene cha jack chidzamira mu nthaka yofewa. Iyenera kukhazikitsidwa mosamalitsa, ndipo kukwera ndi kutsika kuyenera kuchitika bwino, kuonetsetsa kuti palibe zosokoneza.

Jack rack si malo okhazikika chifukwa ali ndi phazi laling'ono. Choncho, katundu wokwezedwa ayenera kutetezedwa, mwachitsanzo, ndi chipika kapena njerwa. Ndipo palibe vuto musakwere pansi pagalimoto! Mwa mitundu yonse ya jacks, rack ndi pinion ndizowopsa kwambiri.

Hijack siyikulimbikitsidwa kuti ikhale yothira mafuta, chifukwa dothi limamatira kumafuta, zomwe zingayambitse makinawo kupanikizana.

imagwira ntchito ndi hydraulic. Pampu yoyendetsa imapanga kuthamanga kwamafuta mu silinda yogwira ntchito, yomwe imagwira pa plunger, yomwe imakankhira ndodo mmwamba. Ndodo yokhala ndi nsanja yapadera kumtunda imakanikiza katunduyo, kuwukweza. Kukhalapo kwa valve kumalepheretsa mafuta kubwereranso. Kuti muteteze jack ku zolakwika pamapangidwe, nthawi zambiri pamakhala valavu yowonjezera yowonjezera yomwe imatsegulidwa ngati katundu wololedwa wadutsa.

Kuphatikiza pa ndodo imodzi, pali mitundu yambiri ya telescopic yokhala ndi ziwiri, ndipo nthawi zina ndi ndodo zitatu zomwe zimatambasula imodzi kuchokera ku ina monga zigawo za telescopic antenna. Izi zimakuthandizani kuti muwonjezere kutalika kokweza mpaka pafupifupi 400…500 mm. Eni magalimoto okhala ndi chilolezo chokwera ayenera kulabadira, mwachitsanzo, pagalimoto yamatani 6.

Kutalika kwa zida zotere kumayambira 90 mm (mwachitsanzo, chitsanzo), ndipo mphamvu yolemetsa imatha kufika matani 50 kapena kuposa.

Mabotolo jacks ali ndi zabwino zambiri zomwe zawapangitsa kuti azigwiritsidwa ntchito kwambiri. Mwa iwo:

• kukwera kwakukulu;
• kuyenda bwino;
• kuyimitsa kutalika kolondola;
• kukonza zokha;
• mtengo wotsika wantchito;
• kukula kochepa ndi kulemera kumakupatsani mwayi wonyamula mu thunthu.

Zoyipa zazikulu ndizokwera pang'ono kukweza, liwiro lotsika, zovuta ndikuchepetsa kulondola kwa kutalika.

Kusungirako ndi kunyamula ma jacks a hydraulic kuyenera kuchitika pamalo okhazikika kuti asatayike.

imagwiranso ntchito pazida zonyamulira ma hydraulic. Mfundo ya ntchito yake si yosiyana kwenikweni ndi botolo. Malipiro ndi omwewo. Kutalika kwa chithunzicho ndi 130 ... 140 mm, koma nthawi zina zosakwana 90 mm. Kutalika kokweza 300…500 mm.

Ubwino wonse wa ma jacks a botolo, omwe atchulidwa pamwambapa, ndiwofanana ndi ma hydraulic lifts. Kupatula miyeso ndi kulemera. Zipangizo zogudubuza, kupatulapo kawirikawiri, ndi zazikulu kwambiri komanso zolemetsa kuti sizingayende bwino m'galimoto yonyamula anthu.

Ubwino wowonjezera wamtundu uwu wa jacks umaphatikizapo kukhazikika kwakukulu, khalidwe, chitetezo ndi kugwiritsa ntchito mosavuta. Kukweza kukweza kuli ndi nsanja yokhala ndi mawilo, chifukwa chake imayendetsa pansi pake pakukweza katundu. Panthawi imodzimodziyo, mosiyana ndi mitundu ina yonse ya jacks, kupatukana kwa chipangizocho kuchokera ku vertical sikuphatikizidwa.

Komabe, kugwiritsa ntchito ma jacks ogubuduza kumafuna malo apamwamba komanso olimba opanda miyala ndi zinthu zina zakunja. Ndi abwino kwa malo ogulitsira matayala ndi malo ochitirako misonkhano. Kwa garage yaumwini, ndizomveka kugula chipangizo choterocho ngati nthawi zambiri mumayenera kusintha mawilo (anu, achibale, abwenzi) kapena kukonza zina. Ngati jack imagwiritsidwa ntchito nthawi ndi nthawi, ndi bwino kugula botolo lotsika mtengo kapena jack ya diamondi.

Ndikofunikiranso kuganizira kukula kwa garaja, bokosi lopapatiza likhoza kukhala lopanikizana kwambiri kuti linganyamule. Pazifukwa zotere, muyenera kusankha chitsanzo chokhala ndi mkono wozungulira kuti chitha kugwira ntchito mofanana ndi galimoto ndi khoma. Chowonjezera chowonjezera chikhoza kukhala chopondapo mapazi, chomwe chimafulumizitsa njira yokweza katunduyo.

kwenikweni, ndi pilo wopukutira wopangidwa ndi zinthu zamphamvu za polima, zomwe zimayikidwa pansi pa thupi lagalimoto. Paipiyo imalumikizidwa ndi chitoliro chotulutsa mpweya, ndipo mpweya wotulutsa mpweya umadzaza chipinda cha jack air, chomwe chimatulutsa ndikukweza galimotoyo. Kukhalapo kwa valavu ya cheki sikumaphatikizapo kuwomba pilo mopanda pake. Mukhozanso kudzaza chipindacho ndi compressor kapena silinda ya mpweya woponderezedwa. Kuti muchepetse kupanikizika, pali valavu yomwe imatsegula mwa kukanikiza lever yapadera.

Kudzaza kumachitika mwachangu kwambiri, ndipo kulimbitsa thupi sikufunikira kwenikweni, kotero azimayi amayamikira jack iyi.

Phazi lalikulu limalola kugwiritsa ntchito jack air kukoka makina kuchokera kumatope, matalala kapena mchenga. Kutalika kwapang'onopang'ono - pafupifupi 150 mm - kumapangitsa kugwiritsa ntchito chipangizocho pamagalimoto okhala ndi chilolezo chotsika.

Mitundu yambiri ya ma jacks a pneumatic ili ndi chipangizo chogudubuza chokhala ndi mawilo, omwe, choyamba, amawonjezera kutalika kwa chithunzithunzi, ndipo kachiwiri, siwothandiza kwambiri mu chisanu kapena mchenga. Izi ziyenera kuganiziridwa posankha chitsanzo chapadera.

Ndikoyeneranso kutchera khutu kukhalapo kwa ma grooves apadera pa nsanja yokweza ya jack, yomwe imalepheretsa makinawo kuti asatengeke pakukweza kapena kutsitsa. ndizofunikanso kukhala ndi nsanja yachitsulo pansi pa pilo kuchokera pansi, izi zidzawonjezera kukhazikika kwadongosolo lonse.

Moyo wautumiki wa jack pneumatic umatsimikiziridwa makamaka ndi nthawi yokalamba ya chipinda cha chipinda, choncho khalidwe lake liyenera kupatsidwa chisamaliro chapadera.

Zoyipa zake zimaphatikizapo kusakhazikika kwapamwamba komanso zovuta kukhalabe ndi kutalika kosasunthika konyamula katundu, chifukwa chifukwa cha kupsinjika kwa mpweya, kupanikizika m'malo osiyanasiyana a chipindacho kumatha kusiyana. Palinso chiopsezo kuti kamera idzawonongeka ndi zinthu zakuthwa panthawi yogwiritsira ntchito kapena yosungirako.

Koma, mwinamwake, drawback yaikulu ya chipangizo chamtunduwu ndi mtengo wokwera kwambiri, chifukwa chake ambiri angakonde zosankha zotsika mtengo.

Ngati galimotoyo ili ndi mipope iwiri yotulutsa mpweya, chikwama cha airbag sichidzaphulika. Muyenera kugwiritsa ntchito njira zina zopopera.

Mutha kusankha jack molingana ndi njira zosiyanasiyana, koma magawo atatu aukadaulo ndiofunikira, omwe nthawi zonse amawonetsedwa pathupi ndi ma jack. Izi ndi mphamvu zonyamulira, kutalika kwa chojambula (mbeza) komanso kutalika kokweza kwambiri.

1. Kulemera kwake ndi kulemera kwakukulu komwe jack idapangidwa kuti ikweze popanda chiwopsezo cha zolakwika. Kawirikawiri amatchulidwa mu matani. Ziyenera kukumbukiridwa kuti misa yonse yagalimoto itatha kuthamangitsidwa imagawidwa pamawilo atatu ndi jack. Kuti mukhale ndi malire a chitetezo, ndi bwino kusankha chipangizo chomwe chingathe kupirira osachepera theka la kulemera kwa galimoto yodzaza. Kuchuluka kwa katundu sikungakhudze magwiridwe antchito, koma mtengo ukhoza kukhala wapamwamba. Simuyeneranso kutengeka ndi ndalama - zida zotere siziyenera kugwiritsidwa ntchito molingana ndi kuthekera kwawo.
   
   Kulemera kwa pasipoti yamagalimoto kawirikawiri sikuposa tani imodzi ndi theka, ma SUV amatha kulemera 2 ... 3 matani.
2. Kutalika kwa thumba. Uwu ndiye mtunda wocheperako pakati pa maziko kuchokera pansi ndi nsanja yothandizira jack kuchokera pamwamba. Izi zimatsimikizira ngati zingatheke kuzembera jack pansi pa galimoto inayake yokhala ndi chilolezo. Pankhaniyi, m'pofunika kuganizira zomwe zingatheke ndi tayala lathyathyathya, pamene chilolezo chenichenicho chimakhala chochepa kuposa pasipoti. Lolani kuti mpweya utuluke mu tayala ndikuyezera chilolezo chomwe chimachokera - kutalika kwa jack kuyenera kulowa mumtengo womwe mwapeza. Kuchulukira kochulukira kulibe ntchito pano, chifukwa chizindikirochi chikugwirizana ndi kutalika kokwera komwe kuyenera kukhala kokwanira kuti gudumu lichoke pansi.
   
   Ngati muli ndi galimoto yokhala ndi chilolezo chochepa, muyenera kumvetsera zomwe zimatchedwa. mbeza zitsanzo. Amakhala ndi kutalika kwa 20 ... 40 mm.
3. Kutalika kwapamwamba kwambiri ndi mtunda wochokera kumalo okwera galimoto omwe galimotoyo imatha kukwezedwa. Zikhale zokwanira kupachika gudumu.
4. Kulemera ndi miyeso. Iwo ndi ofunikira kwa chipangizo chomwe chidzakhala nthawi zonse m'galimoto.
5. Mphamvu yofunikira kuti igwiritsidwe ntchito pa lever kapena chogwirira ntchito. Mwa kuyankhula kwina, mudzakhala ndi thukuta lochuluka bwanji kuti mukweze katunduyo.
6. Kukhalapo kwa gasket ya rabara kumafunika ngati makinawo alibe malo apadera opangira kukweza.

Mukagula jack, musathamangire kuyiyika mu thunthu. Ndi bwino kuyesa nthawi yomweyo ndikuwonetsetsa kuti ndizothandiza, zodalirika komanso sizingakukhumudwitseni pakafunika kutero.