{"id":1215,"date":"2026-05-20T04:00:42","date_gmt":"2026-05-20T04:00:42","guid":{"rendered":"https:\/\/pto-gearbox.net\/?p=1215"},"modified":"2026-05-20T04:00:42","modified_gmt":"2026-05-20T04:00:42","slug":"truck-gearbox-types-explained-a-mechanical-overview","status":"publish","type":"post","link":"https:\/\/pto-gearbox.net\/cs\/truck-gearbox-types-explained-a-mechanical-overview\/","title":{"rendered":"Vysv\u011btlen\u00ed typ\u016f p\u0159evodovek pro n\u00e1kladn\u00ed vozidla: Mechanick\u00fd p\u0159ehled"},"content":{"rendered":"
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Vysv\u011btlen\u00ed typ\u016f p\u0159evodovek pro n\u00e1kladn\u00ed vozidla: Mechanick\u00fd p\u0159ehled<\/h1>\n

Od p\u0159evodovky z 20. let 20. stolet\u00ed, kter\u00e1 vy\u017eadovala mezispojku, a\u017e po modern\u00ed 12stup\u0148ovou automatickou manu\u00e1ln\u00ed p\u0159evodovku, kter\u00e1 \u0159ad\u00ed za 200 milisekund \u2013 p\u0159evodovka n\u00e1kladn\u00edch vozidel se v pr\u016fb\u011bhu stolet\u00ed v\u00fdvoje vyv\u00edjela, aby spl\u0148ovala ne\u00faprosn\u00e9 po\u017eadavky komer\u010dn\u00ed dopravy. Ka\u017ed\u00fd typ p\u0159edstavuje jinou odpov\u011b\u010f na stejnou z\u00e1kladn\u00ed in\u017een\u00fdrskou ot\u00e1zku: jak efektivn\u011b p\u0159izp\u016fsobit \u00fazk\u00e9 v\u00fdkonov\u00e9 p\u00e1smo vzn\u011btov\u00e9ho motoru obrovsk\u00e9mu rozsahu rychlost\u00ed a podm\u00ednek zat\u00ed\u017een\u00ed, s nimi\u017e se n\u00e1kladn\u00ed vozidlo v provozu setk\u00e1v\u00e1?<\/p>\n

Prozkoumejte na\u0161i \u0159adu p\u0159evodovek<\/a><\/p>\n<\/div>\n<\/div>\n

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Pro\u010d n\u00e1kladn\u00ed automobily pot\u0159ebuj\u00ed specializovan\u00e9 p\u0159evodovky<\/h2>\n

P\u0159evodovka n\u00e1kladn\u00edho vozu pracuje v z\u00e1sadn\u011b odli\u0161n\u00e9m technick\u00e9m re\u017eimu ne\u017e p\u0159evodovka osobn\u00edho vozu. U\u017eitkov\u00e9 vzn\u011btov\u00e9 motory dosahuj\u00ed maxim\u00e1ln\u00edho to\u010div\u00e9ho momentu p\u0159i n\u00edzk\u00fdch ot\u00e1\u010dk\u00e1ch \u2013 obvykle 1 000 a\u017e 1 400 ot\/min \u2013 v \u00fazk\u00e9m pou\u017eiteln\u00e9m p\u00e1smu, asi 500 ot\/min. Benz\u00ednov\u00fd motor osobn\u00edho vozu m\u016f\u017ee poskytovat pou\u017eiteln\u00fd v\u00fdkon v rozsahu 4 000 ot\/min. Toto \u00fazk\u00e9 v\u00fdkonov\u00e9 p\u00e1smo vzn\u011btov\u00e9ho vozu znamen\u00e1, \u017ee n\u00e1kladn\u00ed v\u016fz pot\u0159ebuje mnohem v\u00edce p\u0159evodov\u00fdch pom\u011br\u016f, aby udr\u017eel motor v produktivn\u00ed z\u00f3n\u011b v cel\u00e9m rozsahu provozn\u00edch rychlost\u00ed vozidla, od rozjezdu z 0 km\/h p\u0159i pln\u00e9 hmotnosti vozidla a\u017e po j\u00edzdu na d\u00e1lnici rychlost\u00ed p\u0159es 100 km\/h.<\/p>\n

Nav\u00edc jsou hodnoty to\u010div\u00e9ho momentu v\u00fdrazn\u011b vy\u0161\u0161\u00ed. Vysoce v\u00fdkonn\u00fd vzn\u011btov\u00fd motor produkuje to\u010div\u00fd moment 1 800 a\u017e 2 500+ N\u00b7m \u2013 10 a\u017e 15kr\u00e1t v\u00edce ne\u017e typick\u00fd motor osobn\u00edho automobilu. Ka\u017ed\u00e9 ozuben\u00e9 kolo, h\u0159\u00eddel, lo\u017eisko a synchroniz\u00e1tor v p\u0159evodovce n\u00e1kladn\u00edho vozu mus\u00ed b\u00fdt navr\u017eeny pro toto zat\u00ed\u017een\u00ed p\u0159i zachov\u00e1n\u00ed p\u0159ijateln\u00e9 hmotnosti, rozm\u011br\u016f a kvality \u0159azen\u00ed.<\/p>\n

P\u011bt typ\u016f p\u0159evodovek pro n\u00e1kladn\u00ed vozidla, kter\u00e9 se v sou\u010dasnosti pou\u017e\u00edvaj\u00ed v komer\u010dn\u00edch prostor\u00e1ch, tyto po\u017eadavky vyva\u017euje odli\u0161n\u011b. Pochopen\u00ed jejich mechanick\u00fdch princip\u016f, v\u00fdhod a omezen\u00ed pom\u00e1h\u00e1 provozovatel\u016fm vozov\u00fdch park\u016f, majitel\u016fm-\u0159idi\u010d\u016fm a technik\u016fm \u00fadr\u017eby \u010dinit informovan\u00e1 rozhodnut\u00ed o n\u00e1kupu, provozu a servisu.<\/p>\n

\"P\u0159ehled<\/div>\n

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Typ 1 \u2013 Manu\u00e1ln\u00ed synchronizovan\u00e1 p\u0159evodovka<\/h2>\n

Manu\u00e1ln\u00ed synchronizovan\u00e1 p\u0159evodovka je nejstar\u0161\u00ed a mechanicky nejjednodu\u0161\u0161\u00ed konstrukc\u00ed, kter\u00e1 se st\u00e1le \u0161iroce pou\u017e\u00edv\u00e1 v n\u00e1kladn\u00edch automobilech. Jej\u00ed architektura se skl\u00e1d\u00e1 ze vstupn\u00edho h\u0159\u00eddele poh\u00e1n\u011bn\u00e9ho motorem p\u0159es t\u0159ec\u00ed spojku, p\u0159edlohov\u00e9ho h\u0159\u00eddele nesouc\u00edho ozuben\u00e9 soukol\u00ed a v\u00fdstupn\u00edho h\u0159\u00eddele, kter\u00fd dod\u00e1v\u00e1 v\u00fdkon do hnac\u00edho \u00fastroj\u00ed. Synchroniza\u010dn\u00ed krou\u017eky \u2013 t\u0159ec\u00ed ku\u017eely, kter\u00e9 vyrovn\u00e1vaj\u00ed rychlost p\u0159evodov\u00e9ho stupn\u011b a h\u0159\u00eddele p\u0159ed za\u0159azen\u00edm \u2013 umo\u017e\u0148uj\u00ed \u0159idi\u010di \u0159adit bez nutnosti mezispojky.<\/p>\n

Lehk\u00e9 a st\u0159edn\u00ed n\u00e1kladn\u00ed vozy obvykle pou\u017e\u00edvaj\u00ed 5 nebo 6 synchronizovan\u00fdch p\u0159evodov\u00fdch stup\u0148\u016f pro j\u00edzdu vp\u0159ed. T\u011b\u017ek\u00e9 n\u00e1kladn\u00ed vozy mohou pou\u017e\u00edvat 9, 10, 13 nebo dokonce 18 p\u0159evodov\u00fdch stup\u0148\u016f pro j\u00edzdu vp\u0159ed, \u010deho\u017e je dosa\u017eeno slo\u017eenou konstrukc\u00ed: hlavn\u00ed p\u0159evodovka se 4 nebo 5 p\u0159evodov\u00fdmi stupni vyn\u00e1soben\u00fdmi rozsahovou sekc\u00ed (vysok\u00fd\/n\u00edzk\u00fd) a n\u011bkdy i d\u011blic\u00ed sekc\u00ed (p\u0159\u00edm\u00fd\/p\u0159evodov\u00fd stupe\u0148 v r\u00e1mci ka\u017ed\u00e9ho hlavn\u00edho p\u0159evodov\u00e9ho stupn\u011b). Ikonick\u00fdm p\u0159\u00edkladem je osmn\u00e1ctistup\u0148ov\u00e1 p\u0159evodovka Eaton Fuller \u201eSuper 18\u201c \u2013 \u010dty\u0159stup\u0148ov\u00e1 hlavn\u00ed p\u0159evodovka \u00d7 2 d\u011blic\u00ed \u00d7 2 rozsahov\u00e9 + zp\u00e1te\u010dka, kter\u00e1 poskytuje 18 p\u0159evodov\u00fdch stup\u0148\u016f pro j\u00edzdu vp\u0159ed a 4 zp\u00e1te\u010dky v p\u0159ekvapiv\u011b kompaktn\u00edm proveden\u00ed.<\/p>\n

Mechanickou v\u00fdhodou manu\u00e1ln\u00edch synchronizovan\u00fdch p\u0159evodovek je \u00fa\u010dinnost: p\u0159i jak\u00e9mkoli dan\u00e9m p\u0159evodov\u00e9m pom\u011bru proud\u00ed v\u00fdkon p\u0159\u00edmo p\u0159es ozuben\u00e1 kola bez ztr\u00e1t hydraulickou spojkou. Maxim\u00e1ln\u00ed \u00fa\u010dinnost p\u0159esahuje 971 TP3T u p\u0159\u00edm\u00e9ho p\u0159evodu (1:1). Nev\u00fdhodou je z\u00e1vislost na \u0159idi\u010di \u2013 spot\u0159eba paliva, \u017eivotnost spojky a \u017eivotnost hnac\u00edho \u00fastroj\u00ed z\u00e1vis\u00ed na dovednosti \u0159idi\u010de p\u0159i \u0159azen\u00ed. \u0160patn\u011b vy\u0161kolen\u00fd \u0159idi\u010d m\u016f\u017ee spot\u0159ebovat o 15\u2013201 TP3T v\u00edce paliva a zkr\u00e1tit \u017eivotnost spojky na polovinu ve srovn\u00e1n\u00ed se zku\u0161en\u00fdm \u0159idi\u010dem ve stejn\u00e9m n\u00e1kladn\u00edm voze.<\/p>\n

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\u2705<\/p>\n

V\u00fdhody<\/p>\n

Nejvy\u0161\u0161\u00ed mechanick\u00e1 \u00fa\u010dinnost. Nejni\u017e\u0161\u00ed po\u0159izovac\u00ed n\u00e1klady. Nejni\u017e\u0161\u00ed hmotnost. Nejjednodu\u0161\u0161\u00ed \u00fadr\u017eba. \u017d\u00e1dn\u00e1 z\u00e1vislost na elektronick\u00e9m ovl\u00e1d\u00e1n\u00ed. Dlouh\u00e1 \u017eivotnost p\u0159i spr\u00e1vn\u00e9m provozu.<\/p>\n<\/div>\n

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\u26a0\ufe0f<\/p>\n

Omezen\u00ed<\/p>\n

Vy\u017eaduje zku\u0161en\u00e9ho \u0159idi\u010de. Spot\u0159eba paliva se li\u0161\u00ed v z\u00e1vislosti na \u0159idi\u010di. Vy\u0161\u0161\u00ed \u00fanava \u0159idi\u010de na p\u0159et\u00ed\u017een\u00fdch tras\u00e1ch. Del\u0161\u00ed doby \u0159azen\u00ed p\u0159eru\u0161uj\u00ed dod\u00e1vku v\u00fdkonu. Spojka je opot\u0159ebiteln\u00fd prvek.<\/p>\n<\/div>\n<\/div>\n

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Typ 2 \u2013 Automatizovan\u00e1 manu\u00e1ln\u00ed p\u0159evodovka (AMT)<\/h2>\n

AMT je mechanicky identick\u00e1 s manu\u00e1ln\u00ed synchronizovanou p\u0159evodovkou \u2013 stejn\u00e9 soukol\u00ed, stejn\u00e9 synchroniz\u00e1tory, stejn\u00e1 z\u00e1kladn\u00ed hnac\u00ed dr\u00e1ha. Z\u00e1sadn\u00ed rozd\u00edl spo\u010d\u00edv\u00e1 v tom, \u017ee ovl\u00e1d\u00e1n\u00ed spojky a volba p\u0159evodov\u00fdch stup\u0148\u016f se prov\u00e1d\u011bj\u00ed elektronicky \u0159\u00edzen\u00fdmi pneumatick\u00fdmi nebo hydraulick\u00fdmi pohony, nikoli rukama a nohama \u0159idi\u010de. \u0158idi\u010d vol\u00ed j\u00edzdn\u00ed re\u017eim; \u0159\u00eddic\u00ed jednotka \u0159\u00edd\u00ed ka\u017ed\u00e9 \u0159azen\u00ed na z\u00e1klad\u011b ot\u00e1\u010dek motoru, rychlosti vozovky, zat\u00ed\u017een\u00ed a \u00fadaj\u016f o sklonu.<\/p>\n

Manu\u00e1ln\u00ed p\u0159evodovky (AMT) se staly dominantn\u00edm typem p\u0159evodovky v nov\u00fdch t\u011b\u017ek\u00fdch n\u00e1kladn\u00edch vozidlech v Severn\u00ed Americe, Evrop\u011b a st\u00e1le v\u00edce i na trz\u00edch v asijsko-pacifick\u00e9m regionu. Eaton Fuller Advantage, Volvo I-Shift, Mercedes-Benz PowerShift a ZF TraXon jsou v\u0161echny manu\u00e1ln\u00ed p\u0159evodovky postaven\u00e9 na osv\u011bd\u010den\u00fdch architektur\u00e1ch manu\u00e1ln\u00edch p\u0159evodovek s p\u0159idan\u00fdm elektronick\u00fdm \u0159\u00edzen\u00edm \u0159azen\u00ed. Logika \u0159azen\u00ed v t\u011bchto jednotk\u00e1ch je sofistikovan\u00e1 \u2013 modern\u00ed AMT se u\u010d\u00ed j\u00edzdn\u00ed vzorce \u0159idi\u010de, p\u0159edvol\u00ed rychlostn\u00ed stupn\u011b pro nadch\u00e1zej\u00edc\u00ed stoup\u00e1n\u00ed a p\u0159eskakuj\u00ed rychlostn\u00ed stupn\u011b b\u011bhem akcelerace, kdy\u017e m\u00e1 motor dostate\u010dn\u00fd to\u010div\u00fd moment k p\u0159epnut\u00ed na dal\u0161\u00ed dostupn\u00fd p\u0159evodov\u00fd pom\u011br.<\/p>\n

Proto\u017ee z\u00e1kladn\u00ed p\u0159evodov\u00e9 \u00fastroj\u00ed je manu\u00e1ln\u00ed konstrukce s konstantn\u00edm z\u00e1b\u011brem, zachov\u00e1v\u00e1 si automatizovan\u00e1 p\u0159evodovka (AMT) v\u00fdhodu mechanick\u00e9 \u00fa\u010dinnosti \u2013 \u017e\u00e1dn\u00fd m\u011bni\u010d to\u010div\u00e9ho momentu, \u017e\u00e1dn\u00e9 ztr\u00e1ty planetov\u00fdch p\u0159evod\u016f. Zlep\u0161en\u00ed \u00fa\u010dinnosti p\u0159evodovky 1\u20132% oproti automatick\u00e9 p\u0159evodovce s m\u011bni\u010dem to\u010div\u00e9ho momentu, kter\u00e9 se s\u010d\u00edt\u00e1 p\u0159i ujet\u00ed stovek tis\u00edc kilometr\u016f ro\u010dn\u011b, se prom\u00edt\u00e1 do zna\u010dn\u00e9 \u00faspory paliva p\u0159i d\u00e1lkov\u00e9 doprav\u011b. Nev\u00fdhodou je do\u010dasn\u00e9 p\u0159eru\u0161en\u00ed to\u010div\u00e9ho momentu b\u011bhem ka\u017ed\u00e9ho \u0159azen\u00ed (spojka se mus\u00ed rozpojit a znovu zapnout), kter\u00e9 je znateln\u00e9, ale je navr\u017eeno tak, aby bylo kr\u00e1tk\u00e9 \u2013 u jednotek sou\u010dasn\u00e9 generace obvykle 200\u2013400 milisekund.<\/p>\n

\"Technick\u00fd<\/div>\n

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Typ 3 \u2013 Dvouspojkov\u00e1 p\u0159evodovka (DCT)<\/h2>\n

Dvouspojkov\u00e1 p\u0159evodovka pou\u017e\u00edv\u00e1 dva samostatn\u00e9 vstupn\u00ed h\u0159\u00eddele \u2013 jeden nese lich\u00e9 p\u0159evodov\u00e9 stupn\u011b (1., 3., 5. atd.) a druh\u00fd sud\u00e9 p\u0159evodov\u00e9 stupn\u011b (2., 4., 6. atd.) \u2013 ka\u017ed\u00fd s vlastn\u00ed spojkou. Zat\u00edmco jedna spojka je sepnut\u00e1 a p\u0159en\u00e1\u0161\u00ed v\u00fdkon, druh\u00e1 p\u0159edvol\u00ed na sv\u00e9m h\u0159\u00eddeli dal\u0161\u00ed p\u0159edpokl\u00e1dan\u00fd p\u0159evodov\u00fd stupe\u0148. Po za\u0159azen\u00ed se sepnut\u00e1 spojka uvoln\u00ed, zat\u00edmco p\u0159edvolen\u00e1 spojka se sou\u010dasn\u011b zapne \u2013 co\u017e vede k plynul\u00e9mu \u0159azen\u00ed bez p\u0159eru\u0161en\u00ed to\u010div\u00e9ho momentu.<\/p>\n

Ve sv\u011bt\u011b osobn\u00edch vozidel jsou DCT b\u011b\u017en\u00e9 (Volkswagen DSG, Porsche PDK). Ve sv\u011bt\u011b n\u00e1kladn\u00edch vozidel jsou m\u00e9n\u011b roz\u0161\u00ed\u0159en\u00e9, ale z\u00edsk\u00e1vaj\u00ed na popularit\u011b ve st\u0159edn\u011b t\u011b\u017ek\u00fdch a m\u011bstsk\u00fdch rozvozov\u00fdch aplikac\u00edch, kde plynul\u00fd a nep\u0159eru\u0161ovan\u00fd p\u0159enos v\u00fdkonu zlep\u0161uje jak ovladatelnost, tak bezpe\u010dnost n\u00e1kladu. Dvouspojkov\u00e1 p\u0159evodovka Volvo I-Shift, p\u0159edstaven\u00e1 pro t\u011b\u017ek\u00e1 n\u00e1kladn\u00ed vozidla, p\u0159edstavuje sou\u010dasn\u00fd stav techniky: kombinuje \u00fa\u010dinnost p\u0159evodov\u00e9ho \u00fastroj\u00ed manu\u00e1ln\u00ed p\u0159evodovky s rychlostmi \u0159azen\u00ed, kter\u00e9 konkuruj\u00ed planetov\u00e9 automatick\u00e9 p\u0159evodovce.<\/p>\n

Mechanick\u00e1 slo\u017eitost je vy\u0161\u0161\u00ed ne\u017e u standardn\u00edho automatick\u00e9ho p\u0159evodov\u00e9ho mechanismu (AMT) \u2013 dva vstupn\u00ed h\u0159\u00eddele, dv\u011b spojky a souvisej\u00edc\u00ed hydraulick\u00fd \u0159\u00eddic\u00ed syst\u00e9m zvy\u0161uj\u00ed hmotnost, n\u00e1klady a slo\u017eitost \u00fadr\u017eby. Hlavn\u00ed konstruk\u010dn\u00ed v\u00fdzvou je \u0159\u00edzen\u00ed tepla spojkov\u00fdch paket\u016f p\u0159i man\u00e9vrov\u00e1n\u00ed n\u00edzkou rychlost\u00ed (kde ob\u011b spojky prokluzuj\u00ed sou\u010dasn\u011b). Tepeln\u00e1 kapacita spojkov\u00e9ho paketu ur\u010duje, jak dlouho se voz\u00edk m\u016f\u017ee plazit rychlost\u00ed ch\u016fze \u2013 p\u0159ekro\u010den\u00ed tohoto tepeln\u00e9ho limitu zp\u016fsobuje degradaci materi\u00e1lu spojky, zhor\u0161en\u00ed kvality \u0159azen\u00ed a nakonec selh\u00e1n\u00ed spojky, kter\u00e9 vy\u017eaduje n\u00e1kladnou v\u00fdm\u011bnu.<\/p>\n

Navzdory t\u011bmto v\u00fdzv\u00e1m poskytuje plynul\u00e9 \u0159azen\u00ed p\u0159evodovky DCT hmatatelnou provozn\u00ed v\u00fdhodu pro provozy, kter\u00e9 si cen\u00ed plynul\u00e9ho p\u0159enosu v\u00fdkonu a rychl\u00e9ho \u0159azen\u00ed \u2013 svoz odpadu, m\u011bstsk\u00e1 distribuce a p\u0159eprava kapaln\u00fdch n\u00e1klad\u016f cisternami. Absence p\u0159eru\u0161en\u00ed to\u010div\u00e9ho momentu b\u011bhem \u0159azen\u00ed je obzvl\u00e1\u0161t\u011b cenn\u00e1 p\u0159i p\u0159eprav\u011b kapaln\u00fdch n\u00e1klad\u016f, kde n\u00e1hl\u00e9 p\u0159eru\u0161en\u00ed to\u010div\u00e9ho momentu zp\u016fsobuje nebezpe\u010dn\u00e9 p\u0159ep\u011bt\u00ed uvnit\u0159 n\u00e1dr\u017ee, kter\u00e9 ovliv\u0148uje stabilitu vozidla a ovladatelnost \u0159idi\u010de.<\/p>\n

<\/p>\n

Typ 4 \u2013 Plynule m\u011bniteln\u00e1 p\u0159evodovka (CVT)<\/h2>\n

CVT nab\u00edz\u00ed nekone\u010dn\u00fd po\u010det p\u0159evodov\u00fdch pom\u011br\u016f mezi minim\u00e1ln\u00ed a maxim\u00e1ln\u00ed mez\u00ed \u2013 neexistuj\u00ed \u017e\u00e1dn\u00e9 samostatn\u00e9 p\u0159evodov\u00e9 stupn\u011b. V osobn\u00edch automobilech se toho obvykle dosahuje kovov\u00fdm \u0159emenem nebo \u0159et\u011bzem mezi dv\u011bma \u0159emenicemi s prom\u011bnn\u00fdm pr\u016fm\u011brem. V n\u00e1kladn\u00edch automobilech a t\u011b\u017ek\u00fdch stroj\u00edch je mechanismus hydrostatick\u00fd nebo hydromechanick\u00fd: hydraulick\u00e9 \u010derpadlo s prom\u011bnn\u00fdm objemem poh\u00e1n\u00ed hydraulick\u00fd motor, p\u0159i\u010dem\u017e p\u0159evod je \u0159\u00edzen zm\u011bnou \u00fahlu nakl\u00e1p\u011bc\u00ed desky \u010derpadla.<\/p>\n

V\u00fdhodou je, \u017ee motor lze udr\u017eovat na nej\u00fasporn\u011bj\u0161\u00edch ot\u00e1\u010dk\u00e1ch bez ohledu na rychlost vozidla \u2013 CVT pr\u016fb\u011b\u017en\u011b upravuje p\u0159evodov\u00fd pom\u011br tak, aby odpov\u00eddal rychlosti vozidla. Nev\u00fdhodou je \u00fa\u010dinnost: hydrostatick\u00e9 CVT ztr\u00e1cej\u00ed 10\u2013201 TP3T vstupn\u00edho v\u00fdkonu na oh\u0159ev hydraulick\u00e9 kapaliny, ve srovn\u00e1n\u00ed s m\u00e9n\u011b ne\u017e 31 TP3T ztr\u00e1tami u p\u0159evodovky s ozuben\u00fdm z\u00e1b\u011brem. Toto sn\u00ed\u017een\u00ed \u00fa\u010dinnosti omezuje CVT na aplikace, kde flexibilita p\u0159evodu p\u0159eva\u017euje nad n\u00e1klady na energii \u2013 p\u0159edev\u0161\u00edm v zem\u011bd\u011blsk\u00fdch traktorech (kde jsou CVT roz\u0161\u00ed\u0159en\u00e9), stavebn\u00edch stroj\u00edch a n\u011bkter\u00fdch speci\u00e1ln\u00edch vozidlech.<\/p>\n

Na trhu s konven\u010dn\u00edmi n\u00e1kladn\u00edmi vozidly z\u016fst\u00e1vaj\u00ed p\u0159evodovky CVT jen okrajovou skupinou. Sn\u00ed\u017een\u00ed spot\u0159eby paliva v d\u016fsledku hydraulick\u00fdch ztr\u00e1t je pro d\u00e1lkovou p\u0159epravu, kde na milionech kilometr\u016f z\u00e1le\u017e\u00ed na ka\u017ed\u00e9m zlomku procenta, nep\u0159ijateln\u00e9. V zem\u011bd\u011blsk\u00fdch a komun\u00e1ln\u00edch vozidlech se v\u0161ak objevuj\u00ed hydromechanick\u00e9 p\u0159evodovky CVT, kter\u00e9 kombinuj\u00ed ozuben\u00fd p\u0159evod s men\u0161\u00edm hydraulick\u00fdm vari\u00e1torem (umo\u017e\u0148uj\u00edc\u00edm plynul\u00e9 nastaven\u00ed p\u0159evodov\u00e9ho pom\u011bru v r\u00e1mci diskr\u00e9tn\u00edch mechanick\u00fdch rozsah\u016f p\u0159evod\u016f), a to zejm\u00e9na v oblastech, kde rozmanitost provozn\u00edch profil\u016f ospravedl\u0148uje slo\u017eitost.<\/p>\n

<\/p>\n

Typ 5 \u2013 Automatick\u00e1 p\u0159evodovka s m\u011bni\u010dem to\u010div\u00e9ho momentu<\/h2>\n

Automatick\u00e1 p\u0159evodovka s m\u011bni\u010dem to\u010div\u00e9ho momentu vyu\u017e\u00edv\u00e1 kapalinovou spojku (m\u011bni\u010d to\u010div\u00e9ho momentu) mezi motorem a planetov\u00fdm soukol\u00ed, kter\u00e9 zaji\u0161\u0165uje v\u00edce p\u0159evodov\u00fdch pom\u011br\u016f vp\u0159ed prost\u0159ednictv\u00edm kombinace spojkov\u00fdch sad a p\u00e1sov\u00fdch brzd. M\u011bni\u010d to\u010div\u00e9ho momentu absorbuje rozd\u00edl ot\u00e1\u010dek mezi vstupem motoru a p\u0159evodovky b\u011bhem akcelerace \u2013 p\u0159i n\u00edzk\u00fdch rychlostech funguje jak jako kapalinov\u00e1 spojka, tak jako n\u00e1sobi\u010d to\u010div\u00e9ho momentu.<\/p>\n

\u0158ady Allison 3000, 4000 a 4700 jsou nejuzn\u00e1van\u011bj\u0161\u00edmi automatick\u00fdmi p\u0159evodovkami s m\u011bni\u010dem to\u010div\u00e9ho momentu na trhu s u\u017eitkov\u00fdmi vozidly. Dominuj\u00ed v profesion\u00e1ln\u00edch aplikac\u00edch: popel\u00e1\u0159sk\u00e9 vozy, m\u00edcha\u010dky betonu, hasi\u010dsk\u00e1 vozidla, m\u011bstsk\u00e9 autobusy a vojensk\u00e1 vozidla. D\u016fvodem je jejich v\u00fdjime\u010dn\u00e1 man\u00e9vrovatelnost p\u0159i n\u00edzk\u00fdch rychlostech \u2013 m\u011bni\u010d to\u010div\u00e9ho momentu zaji\u0161\u0165uje plynul\u00e9, plynul\u00e9 n\u00e1soben\u00ed to\u010div\u00e9ho momentu od nulov\u00e9 rychlosti, co\u017e umo\u017e\u0148uje p\u0159esn\u00e9 plaziv\u00e9 \u0159\u00edzen\u00ed a plynul\u00e9 zm\u011bny sm\u011bru, kter\u00fdm se p\u0159evodovky s ozuben\u00fdm kolem nemohou rovnat.<\/p>\n

Konstruk\u010dn\u00edm kompromisem je \u00fa\u010dinnost. P\u0159i j\u00edzd\u011b na d\u00e1lnici se zapne uzav\u00edrac\u00ed spojka m\u011bni\u010de to\u010div\u00e9ho momentu, aby se eliminoval prokluz, ale b\u011bhem cykl\u016f zastavov\u00e1n\u00ed a rozj\u00ed\u017ed\u011bn\u00ed ve m\u011bst\u011b m\u011bni\u010d absorbuje energii ve form\u011b tepla. Modern\u00ed jednotky tento probl\u00e9m zm\u00edr\u0148uj\u00ed agresivn\u00edmi strategiemi uzav\u00edr\u00e1n\u00ed a \u0161esti nebo v\u00edce p\u0159evodov\u00fdmi pom\u011bry, ale automatick\u00e1 p\u0159evodovka s m\u011bni\u010dem to\u010div\u00e9ho momentu bude za stejn\u00fdch podm\u00ednek v\u017edy spot\u0159ebov\u00e1vat o n\u011bco v\u00edce paliva ne\u017e automatick\u00e1 p\u0159evodovka nebo manu\u00e1ln\u00ed p\u0159evodovka. Pro profesion\u00e1ln\u00ed aplikace, kde provozn\u00ed v\u00fdhody p\u0159eva\u017euj\u00ed nad n\u00e1klady na palivo, je tento kompromis naprosto opodstatn\u011bn\u00fd.<\/p>\n

\"P\u0159ehled<\/div>\n

<\/p>\n

Materi\u00e1ly p\u0159evod\u016f a mazac\u00ed in\u017een\u00fdrstv\u00ed nap\u0159\u00ed\u010d typy<\/h2>\n

Mechanick\u00e9 rozd\u00edly mezi typy p\u0159evodovek n\u00e1kladn\u00edch vozidel sahaj\u00ed hluboko do jejich metalurgie a mazac\u00edch syst\u00e9m\u016f. Manu\u00e1ln\u00ed p\u0159evodovky a p\u0159evodovky AMT pou\u017e\u00edvaj\u00ed ozuben\u00e1 kola z cementovan\u00e9 legovan\u00e9 oceli \u2013 cementovan\u00e9 na HRC 58\u201362 na kontaktn\u00edch ploch\u00e1ch pro odolnost proti opot\u0159eben\u00ed a z\u00e1rove\u0148 si zachov\u00e1vaj\u00ed tuh\u00e9, tv\u00e1rn\u00e9 j\u00e1dro pro tlumen\u00ed n\u00e1raz\u016f. Synchroniza\u010dn\u00ed ku\u017eely jsou obvykle ze slinut\u00e9ho bronzu nebo oceli s molybdenov\u00fdm povlakem, kter\u00e9 jsou navr\u017eeny tak, aby dos\u00e1hly t\u0159ec\u00edho slad\u011bn\u00ed ot\u00e1\u010dek h\u0159\u00eddele b\u011bhem zlomku sekundy. Tyto p\u0159evodovky b\u011b\u017e\u00ed na p\u0159evodov\u00fd olej (obvykle p\u0159evodov\u00fd olej SAE 50 nebo SAE 50\/60 pro t\u011b\u017ek\u00e9 provozy), kter\u00fd mus\u00ed poskytovat jak EP ochranu zub\u016f ozuben\u00fdch kol, tak t\u0159ec\u00ed kompatibilitu materi\u00e1l\u016f synchroniz\u00e1toru \u2013 co\u017e je n\u00e1ro\u010dn\u00fd dvoj\u00ed po\u017eadavek, kter\u00fd omezuje p\u0159ijateln\u00e9 slo\u017een\u00ed oleje.<\/p>\n

Automatick\u00e9 p\u0159evodovky s m\u011bni\u010dem to\u010div\u00e9ho momentu pracuj\u00ed ve zcela odli\u0161n\u00e9m mazac\u00edm prost\u0159ed\u00ed. Planetov\u00e9 soukol\u00ed, spojkov\u00e9 sady a m\u011bni\u010d to\u010div\u00e9ho momentu sd\u00edlej\u00ed jednu p\u0159evodovou kapalinu (ATF), kter\u00e1 mus\u00ed sou\u010dasn\u011b mazat ozuben\u00e1 kola, zaji\u0161\u0165ovat hydraulick\u00fd tlak pro \u0159\u00edzen\u00ed \u0159azen\u00ed, chladit m\u011bni\u010d to\u010div\u00e9ho momentu a zaji\u0161\u0165ovat p\u0159esn\u00e9 koeficienty t\u0159en\u00ed pro spojkov\u00e9 sady. Slo\u017een\u00ed kapaliny ATF pro komer\u010dn\u00ed automatick\u00e9 p\u0159evodovky (nap\u0159\u00edklad Allison TES 295 nebo TES 668) je specifick\u00e9 pro danou aplikaci \u2013 pou\u017eit\u00ed nespr\u00e1vn\u00e9 kapaliny m\u016f\u017ee zp\u016fsobit chv\u011bn\u00ed spojky, zhor\u0161en\u00ed kvality \u0159azen\u00ed a zrychlen\u00e9 opot\u0159eben\u00ed.<\/p>\n

Dvouspojkov\u00e9 p\u0159evodovky p\u0159edstavuj\u00ed nejn\u00e1ro\u010dn\u011bj\u0161\u00ed v\u00fdzvu v oblasti maz\u00e1n\u00ed v oblasti p\u0159evodovek n\u00e1kladn\u00edch vozidel. Mokr\u00e9 DCT (kde spojkov\u00e9 sady b\u011b\u017e\u00ed v oleji) vy\u017eaduj\u00ed kapalinu, kter\u00e1 zaji\u0161\u0165uje ochranu p\u0159evodu, \u0159\u00edzen\u00ed t\u0159en\u00ed spojky a tepelnou vodivost pro dvojit\u00e9 spojkov\u00e9 sady \u2013 to v\u0161e sou\u010dasn\u011b. Such\u00e9 DCT (kde spojky pracuj\u00ed ve vzduchu) odd\u011bluj\u00ed maz\u00e1n\u00ed p\u0159evodu od t\u0159en\u00ed spojky, co\u017e zjednodu\u0161uje po\u017eadavky na kapaliny, ale vy\u017eaduje v\u00fdm\u011bnu spojky jako opot\u0159ebiteln\u00e9 polo\u017eky. Rozd\u00edl mezi mokr\u00fdmi a such\u00fdmi variantami DCT m\u00e1 v\u00fdznamn\u00e9 d\u016fsledky pro pl\u00e1nov\u00e1n\u00ed \u00fadr\u017eby a celkov\u00e9 n\u00e1klady na vlastnictv\u00ed.<\/p>\n

Pro mana\u017eery \u00fadr\u017eby vozov\u00e9ho parku je kl\u00ed\u010dov\u00e9 poznatek, \u017ee v\u00fdb\u011br materi\u00e1lu p\u0159evodovky a specifikace maziva nejsou u jednotliv\u00fdch typ\u016f p\u0159evodovek zam\u011bniteln\u00e9. Ka\u017ed\u00fd typ vy\u017eaduje vlastn\u00ed chemick\u00e9 slo\u017een\u00ed kapaliny, interval v\u00fdm\u011bny a protokol kontroly. K\u0159\u00ed\u017eov\u00e1 kontaminace \u2013 nap\u0159\u00edklad p\u0159id\u00e1n\u00ed p\u0159evodov\u00e9ho oleje do automatick\u00e9 p\u0159evodovky s m\u011bni\u010dem to\u010div\u00e9ho momentu nebo kapaliny ATF do manu\u00e1ln\u00ed p\u0159evodovky \u2013 zp\u016fsobuje po\u0161kozen\u00ed sou\u010d\u00e1st\u00ed, kter\u00e9 nemus\u00ed b\u00fdt okam\u017eit\u011b patrn\u00e9, ale dramaticky urychluje opot\u0159eben\u00ed v pr\u016fb\u011bhu n\u00e1sleduj\u00edc\u00edch provozn\u00edch hodin.<\/p>\n

<\/p>\n

Srovn\u00e1n\u00ed vedle sebe<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Funkce<\/th>\nManu\u00e1l<\/th>\nAMT<\/th>\nDCT<\/th>\nCVT<\/th>\nAutomatick\u00fd (TC)<\/th>\n<\/tr>\n<\/thead>\n
\u00da\u010dinnost<\/td>\n97%+<\/td>\n96\u201397%<\/td>\n95\u201397%<\/td>\n80\u201390%<\/td>\n88\u201394%<\/td>\n<\/tr>\n
Rychlost \u0159azen\u00ed<\/td>\n0,5\u20132 s<\/td>\n0,2\u20130,4 s<\/td>\n< 0,1 s<\/td>\nBeze\u0161v\u00e9<\/td>\n0,3\u20130,6 s<\/td>\n<\/tr>\n
P\u0159eru\u0161en\u00ed to\u010div\u00e9ho momentu<\/td>\nAno<\/td>\nStru\u010dn\u00fd<\/td>\n\u017d\u00e1dn\u00fd<\/td>\n\u017d\u00e1dn\u00fd<\/td>\n\u017d\u00e1dn\u00fd<\/td>\n<\/tr>\n
Po\u017eadovan\u00e9 \u0159idi\u010dsk\u00e9 dovednosti<\/td>\nVysok\u00fd<\/td>\nN\u00edzk\u00fd<\/td>\nN\u00edzk\u00fd<\/td>\nMinim\u00e1ln\u00ed<\/td>\nMinim\u00e1ln\u00ed<\/td>\n<\/tr>\n
Nejlep\u0161\u00ed aplikace<\/td>\nD\u00e1lkov\u00e1 doprava, zku\u0161en\u00ed \u0159idi\u010di<\/td>\nD\u00e1lkov\u00e1 doprava, sm\u00ed\u0161en\u00e1 flotila<\/td>\nM\u011bstsk\u00e1 dod\u00e1vka, cisterny<\/td>\nZem\u011bd\u011blstv\u00ed, specializace<\/td>\nOdborn\u00e9, s \u010dast\u00fdmi zast\u00e1vkami<\/td>\n<\/tr>\n
Kompatibilita s v\u00fdvodov\u00fdm h\u0159\u00eddelem<\/td>\nVynikaj\u00edc\u00ed<\/td>\nDobr\u00e9 (s re\u017eimem PTO)<\/td>\nOmezen\u00fd<\/td>\nProst\u0159ednictv\u00edm rozd\u011blovac\u00ed p\u0159evodovky<\/td>\nVynikaj\u00edc\u00ed (Allison PTO)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

P\u0159evodovky n\u00e1kladn\u00edch vozidel vybaven\u00e9 v\u00fdvodov\u00fdm h\u0159\u00eddelem: Kde se p\u0159evodovky n\u00e1kladn\u00edch vozidel setk\u00e1vaj\u00ed s v\u00fdkonem v\u00fdvodov\u00e9ho h\u0159\u00eddele<\/h2>\n

Mnoho komer\u010dn\u00edch n\u00e1kladn\u00edch vozidel vy\u017eaduje v\u00fdstupy z v\u00fdvodov\u00e9ho h\u0159\u00eddele (PTO) pro pohon hydraulick\u00fdch \u010derpadel, vzduchov\u00fdch kompresor\u016f, navij\u00e1k\u016f nebo mechanick\u00e9ho p\u0159\u00edslu\u0161enstv\u00ed. P\u0159evodovka PTO<\/a> V kontextu n\u00e1kladn\u00edho vozidla je to mechanick\u00e9 za\u0159\u00edzen\u00ed, kter\u00e9 se p\u0159i\u0161roubuje k otvoru v p\u0159evodov\u00e9 sk\u0159\u00edni n\u00e1kladn\u00edho vozidla a zapne ozuben\u00e9 kolo na p\u0159edlohov\u00e9m h\u0159\u00eddeli p\u0159evodovky nebo pomocn\u00e9 soukol\u00ed, aby odeb\u00edralo rota\u010dn\u00ed v\u00fdkon za chodu motoru.<\/p>\n

Manu\u00e1ln\u00ed p\u0159evodovky a p\u0159evodovky AMT nab\u00edzej\u00ed nejp\u0159\u00edm\u011bj\u0161\u00ed integraci v\u00fdvodov\u00e9ho h\u0159\u00eddele \u2013 ob\u011b maj\u00ed p\u0159\u00edstupn\u00e1 p\u0159edlohov\u00e1 ozuben\u00e1 kola a standardizovan\u00e9 otvory pro v\u00fdvodov\u00fd h\u0159\u00eddel. Automatick\u00e9 p\u0159evodovky s m\u011bni\u010dem to\u010div\u00e9ho momentu (zejm\u00e9na jednotky Allison) jsou z v\u00fdroby navr\u017eeny s integrovan\u00fdmi mechanismy v\u00fdvodov\u00e9ho h\u0159\u00eddele a elektronickou logikou zap\u00edn\u00e1n\u00ed v\u00fdvodov\u00e9ho h\u0159\u00eddele. P\u0159evodovky DCT a CVT p\u0159edstavuj\u00ed pro integraci v\u00fdvodov\u00e9ho h\u0159\u00eddele v\u011bt\u0161\u00ed v\u00fdzvy kv\u016fli sv\u00e9 dvouh\u0159\u00eddelov\u00e9, respektive hydrostatick\u00e9 architektu\u0159e \u2013 v\u00fdvodov\u00fd h\u0159\u00eddel na t\u011bchto platform\u00e1ch obvykle vy\u017eaduje specializovan\u00fd syst\u00e9m. V\u00fdvodov\u00fd h\u0159\u00eddel<\/a> uspo\u0159\u00e1d\u00e1n\u00ed z rozd\u011blovac\u00ed p\u0159evodovky nebo samostatn\u00e9ho v\u00fdvodov\u00e9ho h\u0159\u00eddele poh\u00e1n\u011bn\u00e9ho motorem.<\/p>\n

P\u0159i specifikaci n\u00e1kladn\u00edho vozidla pro za\u0159\u00edzen\u00ed poh\u00e1n\u011bn\u00e9 v\u00fdvodov\u00fdm h\u0159\u00eddelem (PTO) m\u00e1 typ p\u0159evodovky p\u0159\u00edm\u00fd vliv na v\u00fdkon v\u00fdvodov\u00e9ho h\u0159\u00eddele: dostupn\u00fd to\u010div\u00fd moment v\u00fdvodov\u00e9ho h\u0159\u00eddele (omezen\u00fd p\u0159edlohov\u00fdm ozuben\u00fdm kolem, kter\u00e9 se v\u00fdvodov\u00fd h\u0159\u00eddel zap\u00edn\u00e1), dostupn\u00e9 ot\u00e1\u010dky v\u00fdvodov\u00e9ho h\u0159\u00eddele (ur\u010den\u00e9 p\u0159evodov\u00fdm pom\u011brem u otvoru v\u00fdvodov\u00e9ho h\u0159\u00eddele a ot\u00e1\u010dkami motoru) a zp\u016fsob zapojen\u00ed (mechanick\u00e1 \u0159adic\u00ed vidlice u manu\u00e1ln\u00edch p\u0159evodovek, pneumatick\u00fd nebo elektronick\u00fd pohon u automatick\u00fdch p\u0159evodovek). zem\u011bd\u011blsk\u00e1 p\u0159evodovka<\/a> Konstruk\u010dn\u00ed principy p\u0159evodov\u00e9ho pom\u011bru, to\u010div\u00e9ho momentu a tepeln\u00e9ho managementu plat\u00ed stejn\u011b pro aplikace s v\u00fdvodov\u00fdm h\u0159\u00eddelem n\u00e1kladn\u00edch vozidel \u2013 fyzika p\u0159enosu v\u00fdkonu se s platformou vozidla nem\u011bn\u00ed.<\/p>\n

\"P\u0159evodovka<\/div>\n

<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n
\nKter\u00fd typ p\u0159evodovky pro n\u00e1kladn\u00ed vozidla je nej\u00fasporn\u011bj\u0161\u00ed?+<\/span><\/summary>\n
\n

Manu\u00e1ln\u00ed p\u0159evodovka ovl\u00e1dan\u00e1 zku\u0161en\u00fdm \u0159idi\u010dem dosahuje nejvy\u0161\u0161\u00ed mechanick\u00e9 \u00fa\u010dinnosti (97%+). V re\u00e1ln\u00e9m provozu vozov\u00e9ho parku se sm\u00ed\u0161enou \u00farovn\u00ed dovednost\u00ed \u0159idi\u010d\u016f obvykle dosahuje manu\u00e1ln\u00ed p\u0159evodovka s automatickou p\u0159evodovkou (AMT) nejlep\u0161\u00ed pr\u016fm\u011brn\u00e9 spot\u0159eby paliva, proto\u017ee elektronick\u00e1 logika \u0159azen\u00ed konzistentn\u011b vol\u00ed optim\u00e1ln\u00ed body \u0159azen\u00ed bez ohledu na schopnosti \u0159idi\u010de.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nNahrazuj\u00ed AMT manu\u00e1ln\u00ed p\u0159evodovky v u\u017eitkov\u00fdch vozidlech?+<\/span><\/summary>\n
\n

Na v\u011bt\u0161in\u011b rozvinut\u00fdch trh\u016f ano. Manu\u00e1ln\u00ed p\u0159evodovky (AMT) nyn\u00ed tvo\u0159\u00ed v\u00edce ne\u017e 801 TP3T prodeje nov\u00fdch t\u011b\u017ek\u00fdch n\u00e1kladn\u00edch vozidel v Severn\u00ed Americe a Evrop\u011b. Kombinace konzistentn\u00ed spot\u0159eby paliva, sn\u00ed\u017een\u00e9 \u00fanavy \u0159idi\u010d\u016f a ni\u017e\u0161\u00edch po\u017eadavk\u016f na \u0161kolen\u00ed z nich d\u011bl\u00e1 v\u00fdchoz\u00ed volbu pro vozov\u00e9 parky. Manu\u00e1ln\u00ed p\u0159evodovky p\u0159etrv\u00e1vaj\u00ed na trz\u00edch s ni\u017e\u0161\u00edmi n\u00e1klady na pracovn\u00ed s\u00edlu, ve specializovan\u00fdch profesion\u00e1ln\u00edch aplikac\u00edch a mezi majiteli-provozovateli, kte\u0159\u00ed preferuj\u00ed p\u0159\u00edm\u00e9 mechanick\u00e9 ovl\u00e1d\u00e1n\u00ed.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nMohu p\u0159idat v\u00fdvodov\u00fd h\u0159\u00eddel k jak\u00e9koli p\u0159evodovce n\u00e1kladn\u00edho vozidla?+<\/span><\/summary>\n
\n

Ne v\u0161echny p\u0159evodovky maj\u00ed otvory pro v\u00fdvodov\u00fd h\u0159\u00eddel nebo p\u0159\u00edstupn\u00e1 p\u0159edlohov\u00e1 ozuben\u00e1 kola. Manu\u00e1ln\u00ed p\u0159evodovky a automatick\u00e1 p\u0159evodovka AMT obecn\u011b podporuj\u00ed instalaci v\u00fdvodov\u00e9ho h\u0159\u00eddele, stejn\u011b jako automatick\u00e9 p\u0159evodovky Allison (kter\u00e9 jsou navr\u017eeny s v\u00fdvodov\u00fdm h\u0159\u00eddelem). Dvouspojkov\u00e9 p\u0159evodovky a n\u011bkter\u00e9 modern\u00ed automatizovan\u00e9 jednotky nemus\u00ed m\u00edt v\u00fdvodov\u00fd h\u0159\u00eddel \u2013 p\u0159ed specifikac\u00ed vozidla si ov\u011b\u0159te u v\u00fdrobce p\u0159evodovky, zda je v\u00fdvodov\u00fd h\u0159\u00eddel kompatibiln\u00ed.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nPro\u010d popel\u00e1\u0159sk\u00e9 vozy a m\u00edcha\u010dky betonu pou\u017e\u00edvaj\u00ed automatick\u00e9 m\u011bni\u010de to\u010div\u00e9ho momentu?+<\/span><\/summary>\n
\n

Profesion\u00e1ln\u00ed voz\u00edky vy\u017eaduj\u00ed stovky zastaven\u00ed a zm\u011bn sm\u011bru za sm\u011bnu. M\u011bni\u010d to\u010div\u00e9ho momentu poskytuje plynul\u00fd, plynule variabiln\u00ed to\u010div\u00fd moment od nulov\u00e9 rychlosti \u2013 ide\u00e1ln\u00ed pro plazivou j\u00edzdu vp\u0159ed p\u0159i svozu odpadu nebo p\u0159esn\u00e9 polohov\u00e1n\u00ed betonov\u00e9ho \u017elabu. Sn\u00ed\u017een\u00ed spot\u0159eby paliva je p\u0159ijateln\u00e9, proto\u017ee tyto voz\u00edky tr\u00e1v\u00ed v\u011bt\u0161inu sv\u00e9ho provozu p\u0159i n\u00edzk\u00fdch ot\u00e1\u010dk\u00e1ch pod zat\u00ed\u017een\u00edm, kde je v\u00fdhoda m\u011bni\u010de to\u010div\u00e9ho momentu oproti syst\u00e9m\u016fm zalo\u017een\u00fdm na spojce nejv\u011bt\u0161\u00ed.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nJak\u00fd je rozd\u00edl mezi AMT a tradi\u010dn\u00ed automatickou p\u0159evodovkou?+<\/span><\/summary>\n
\n

Automatick\u00e1 p\u0159evodovka (AMT) pou\u017e\u00edv\u00e1 konven\u010dn\u00ed ozuben\u00e9 kolo (ozuben\u00e1 kola s konstantn\u00edm z\u00e1b\u011brem a synchroniz\u00e1tory) s elektronick\u00fdm ovl\u00e1d\u00e1n\u00edm \u0159azen\u00ed \u2013 mechanicky se jedn\u00e1 o manu\u00e1ln\u00ed p\u0159evodovku \u0159azenou pomoc\u00ed ak\u010dn\u00edch \u010dlen\u016f. Tradi\u010dn\u00ed automatick\u00e1 p\u0159evodovka pou\u017e\u00edv\u00e1 m\u011bni\u010d to\u010div\u00e9ho momentu a planetov\u00e9 soukol\u00ed s hydraulick\u00fdmi spojkami. AMT je \u00fa\u010dinn\u011bj\u0161\u00ed (\u017e\u00e1dn\u00e9 ztr\u00e1ty v m\u011bni\u010di to\u010div\u00e9ho momentu), ale m\u00e1 do\u010dasn\u00e9 p\u0159eru\u0161en\u00ed to\u010div\u00e9ho momentu b\u011bhem \u0159azen\u00ed. Automatick\u00e1 p\u0159evodovka poskytuje plynul\u00fd a nep\u0159eru\u0161ovan\u00fd p\u0159enos v\u00fdkonu, ale s m\u00edrn\u011b ni\u017e\u0161\u00ed \u00fa\u010dinnost\u00ed.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nKolik p\u0159evodov\u00fdch stup\u0148\u016f pot\u0159ebuje t\u011b\u017ek\u00fd n\u00e1kladn\u00ed v\u016fz?+<\/span><\/summary>\n
\n

Modern\u00ed t\u011b\u017ek\u00e9 n\u00e1kladn\u00ed vozy obvykle pou\u017e\u00edvaj\u00ed 12 a\u017e 16 p\u0159evodov\u00fdch stup\u0148\u016f vp\u0159ed. \u00dazk\u00e9 v\u00fdkonov\u00e9 p\u00e1smo vzn\u011btov\u00fdch motor\u016f (p\u0159ibli\u017en\u011b 500 ot\u00e1\u010dek za minutu pou\u017eiteln\u00e9ho rozsahu) vy\u017eaduje bl\u00edzko sebe rozm\u00edst\u011bn\u00e9 p\u0159evodov\u00e9 stupn\u011b, aby motor z\u016fstal produktivn\u00ed v cel\u00e9m rozsahu ot\u00e1\u010dek. V\u00edce p\u0159evodov\u00fdch stup\u0148\u016f umo\u017e\u0148uje motoru pracovat bl\u00ed\u017ee k bodu maxim\u00e1ln\u00ed \u00fa\u010dinnosti p\u0159i ka\u017ed\u00e9 rychlosti, co\u017e zlep\u0161uje spot\u0159ebu paliva \u2013 p\u0159echod z 10stup\u0148ov\u00fdch na 12stup\u0148ov\u00e9 p\u0159evodovky u vozov\u00fdch park\u016f p\u0159inesl m\u011b\u0159iteln\u00e9 \u00faspory paliva v cel\u00e9m odv\u011btv\u00ed.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

<\/p>\n

\n

Pot\u0159ebujete p\u0159evodovku PTO pro v\u00e1\u0161 n\u00e1kladn\u00ed v\u016fz?<\/h2>\n

V\u011b\u010dn\u00e1 s\u00edla<\/a> vyr\u00e1b\u00ed p\u0159evodovky PTO, zvy\u0161ova\u010de rychlosti a zem\u011bd\u011blsk\u00e9 p\u0159evodovky kompatibiln\u00ed se v\u0161emi hlavn\u00edmi platformami p\u0159evodovek n\u00e1kladn\u00edch vozidel \u2013 manu\u00e1ln\u00edmi, AMT a automatick\u00fdmi. Kontaktujte n\u00e1\u0161 technick\u00fd t\u00fdm<\/a> pro shodu specifikac\u00ed PTO.<\/p>\n

Prozkoumejte na\u0161i \u0159adu p\u0159evodovek<\/a><\/p>\n<\/div>\n

St\u0159iha\u010d: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Vysv\u011btlen\u00ed typ\u016f p\u0159evodovek n\u00e1kladn\u00edch vozidel: Mechanick\u00fd p\u0159ehled Od crashboxu z 20. let 20. stolet\u00ed, kter\u00fd vy\u017eadoval mezispojku, a\u017e po modern\u00ed 12stup\u0148ovou automatickou manu\u00e1ln\u00ed p\u0159evodovku, kter\u00e1 \u0159ad\u00ed za 200 milisekund \u2013 p\u0159evodovka n\u00e1kladn\u00edch vozidel se v pr\u016fb\u011bhu stolet\u00ed v\u00fdvoje vyv\u00edjela, aby spl\u0148ovala ne\u00faprosn\u00e9 po\u017eadavky komer\u010dn\u00ed dopravy. Ka\u017ed\u00fd typ p\u0159edstavuje jinou odpov\u011b\u010f na stejnou z\u00e1kladn\u00ed in\u017een\u00fdrskou [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[4042],"tags":[],"class_list":["post-1215","post","type-post","status-publish","format-standard","hentry","category-agricultural-gearbox"],"_links":{"self":[{"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/posts\/1215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/comments?post=1215"}],"version-history":[{"count":1,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/posts\/1215\/revisions"}],"predecessor-version":[{"id":1216,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/posts\/1215\/revisions\/1216"}],"wp:attachment":[{"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/media?parent=1215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/categories?post=1215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/tags?post=1215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}