
power takeoff

power takeoff ledhaa power takeoff (pii. tii. oo) anedi nadustunna injin vanti vidyut muulam nundi saktini teesukoni, daanini jatacheyabadina sadhanam ledhaa pratyeka yantram vanti anuvartanaaniki prasaram cheyadaaniki aneka paddhatullo okati.
chaalaa saadhaaranamgaa, idhi oka tractor ledhaa trakkupai amarchabadina splinned drive shaft, idhi samyoga amarikalatho kuudina panimutlanu neerugaa injin dwara saktini pondadaaniki anumatistundi.
paarisraamika mariyu samudra yantraalalo kooda paakshikamgaa saasvatamgaa amarchina power tekaaflanu chudavachu. eee anuvartanaalu saadhaaranamgaa dviteeya amalu ledhaa anubandhaaniki saktini prasaram cheyadaaniki drive shaft mariyu bolt jointnu upayogistaayi. samudra anuvartanam vishayamlo, atuvanti shaftlanu agni pampulaku saktinivvadaaniki upayoginchavacchu.
vimaana anuvartanaallo, atuvanti anubandha drivenu sthiramaina speed drivetho kalipi upayoginchavacchu. jett vimanalalo naalugu rakaala pii. tii. oo unitlu untayih antargata gearbox, bahya gearbox, radial drive shaft mariyu bleed air, ivi injin upakaranaalaku saktinivvadaaniki upayoginchabadataayi. konni sandarbhaallo, vimaanaala shakti takeoff vyavasthalu injin prarambha samayamlo engineloki saktini pettadaniki kooda andistaayi. coffman starter kooda chudandi.
charitra.
vidyut tekaaflu saadhaaranam kaavadaaniki mundu vividha vidyut prasaara paddhatulu andubaatulo undevi, ayithe pitos andinche konni lakshanaala nundi marinta prayojanam pondhe anuvartanaalu unnaayi. factory aaviri yantraalu, portable sthiramaina yantraalu ledhaa pani mundu nilipina traction yantraalu vanti injin sthiramgaa unna anuvartanaalaku matrame flat beltulu saadhaaranamgaa upayogapadataayi. traction injin ledhaa praarambhamlo oka vyavasaya yantraanni lagadam vanti vahanalanu taralinchadaaniki, sadhanam daani swantha chakraalalo okadaani nundi (dheeni malupu tippadam dwara ivvabadindi) teesukoni roller golusula dwara pampinhee cheyadam dwara rotary saktini pondavacchu (udaaharanaku, sikil baar yokka cranku), conny vahanam prayaaninchadam aapivesthe atuvanti prasaram aagipotundi, mariyu panibharam yokka nirodhakata, cheelchivesinappatiki, chakram tiragadaaniki badulugaa jaripoyela chestundi. sulabhamgaa anusandhaaninchabadina mariyu disconnect cheyabadina couplinglatho kuudina shaft drive bhavana, mariyu maarutunna koonaalaloo (oka spashtamaina tractor-mariyu-trailaru kalayika tiriginappudu) driving cheyadaaniki vasyata, konasaginchavalasina lakshyam.
1878 lone prayogaatmaka power takeofs prayatninchabaddaayi, mariyu taruvaati dasaabdaalalo vividha intlo tayaaru chesina samskaranalu nirminchabaddaayi. 
antarjaateeya harvester company (aihechsi) 1918loe pravesapettina daani modal 8-16 thoo utpatti tractorupy pii. tii. oo. thoo modata vikrayinchindi. aihechsi injanir ayina johnston, oka dasaabdam kritam fraanslo chusina intlo tayaaru chesina pito chuusi aakattukunnadu, dheenini french raitu mariyu mechanic intiperu gaugis meruguparicharu. athanu mariyu athani ihc sahacharulu eee aalochananu 8-16 loe chaerchaaru mariyu eee lakshanaanni sadviniyogam chesukovadaniki panimutla kutumbaanni roopondinchaaru. konni cases models vanti itara utpatti tractorlalo oka samvatsaramlone pitos kanipistunnanduna ihc ekkuva kaalam marketlo ontarigaa ledhu. 1920loe, ihc vaari 15-30 tractorupy pii. tii. oo empikanu andinchindi, mariyu nebrasca tractoru pareeksha kosam samarpinchina modati pii. tii. oo-amarchina tractoru idhi. 1920laloe aihechsiki pii. tii. oo. pootii prayojanam, mariyu itara companylu chivariki pii. tii. oo. amalunu pattukunnayi.
transmission lopala, gair railu venta vidyutnu teesivese khachitamaina sthaanam vaahana prayaanaaniki (ground speed) swatantramgaa ptonii amalu cheyavacha anie nirnayistundi. prarambha pitos tarachugaa pradhana avtput shaft nundi teesiveyabadataayi, antey pitoni nadapadaniki vahanam "gerlo" undaali. taruvaata dheenini live pii. tii. oo (elpi. tii. oo) designlu anie pilavabade vaati dwara meruguparachabadindi, ivi tractoru kadalika nundi swatantramgaa pii. tii. oo bhramanaanni niyantrinchadaaniki anumatistaayi. pii. tii. oo. dwara nadiche load kii, pii. tii. oo. dwara nadiche parikaraalu pattukoodaaniki veelugaa, tractoru kadalikanu mandaginchadam ledhaa nadapadam apadam avasaramainappudu idhi oka prayojanam. idhi oka polamlo kakunda oka kuppa ledhaa sarassuku eruvula spreadernu silo-filling ledhaa unload cheyadam vanti, tractoru nilabadi unna chota karyakalapalanu kooda anumatistundi. 1945loe, kenadaaloni antarioloni brantfordku chendina kakshat vyavasaya parikaraala limited, elptolatho kakshat modal 30 tractornu pravesapettindi. nedu nirminchina chaalaa pitos pratyakshamgaa unnaayi. aadhunika tractorlalo, elptio tarachugaa push-button ledhaa selector switch dwara niyantrinchabadutundi. idhi pii. tii. oo. shaftku daggaragaa vellaalsina operatorla bhadratanu penchutundi.
bhadrata.
pii. tii. oo, alaage daani anubandha shaftlu mariyu saarvatrika keellu vyavasayam mariyu parisramalalo sanghatanalu mariyu gayalaku saadhaarana kaaranam. jaateeya bhadrata mandali prakaram, 1997loe united stateslo jarigina aaru saatam tractor sambandhita maranaalu pii. tii. oo. thoo mudipadi unnaayi. vadulugaa unna dustulanu shaftloki laginappudu sanghatanalu sambhavinchavachhu, tarachugaa emuka pagullu, avayavalu kolpovadam, itara shaashwata vaikalyalu ledhaa dharinchinavaariki maranam sambhavinchavachhu. april 13,2009naa, maajee majer leag baseball starr maark fidrich pto sambandhita pramaadam phalitamgaa maraninchaadu; "athani dustulu truck yokka power takeoff shaftlo chikkukunnappudu athanu thana truckulo panichestunnatlu kanipinchaadu", jilla attarney joseph jr. anie oka prakatanalo paerkonnaaru. vyavasaya gaayaala tarachudanam mariyu teevratanu tagginchadaaniki chaalaa krushi chesinappatiki, eee sanghatanalu ippatikee jarugutaayi.
konni panimutlu pii. tii. oo. shaftnu kappadaniki telikapati free-spinning protective plaastik gaardulanu upayogistaayi.
konni deshaalalo ivi tappanisari. 
UKloe, aarogya mariyu bhadrata karyanirvahaka maargadarsakatvam oka karapatramlo untundi.
saanketika praamaaneekarana.
vyavasaya pii. tii. oo. luu parimaanaalu mariyu vegamlo praamaanikam cheyabaddaayi. pitosku iso pramaanam "iso 500", idhi 2004 edition natiki moodu bhagaluga vibhajinchabadindih
asalu rakam (rakam 1 gaa perkonabadindi) nimishaaniki 540 viplavaalu (arpm) vadda operation kosam pilupunistundi. 540 arpm vadda tirige shaftpy aaru splinelu untaayi, mariyu dheeni vyaasam.
rendu kotta rakalu, adhika shakti anuvartanaalaku maddatu istayi, 1000 arpm vadda panicheestaayi mariyu shaft parimaanamlo bhinnamgaa untaayi. saadhaaranamgaa "540" anie piluvabade rakam 1 thoo poliste raitulu saadhaaranamgaa eee rendu rakalanu "pedda 1000" ledhaa "chinna 1000" anie pilavadam dwara vaeru chestaaru. anni kotta rakalu (2,3, mariyu 4) invalute splinelanu upayogistaayi, ayithe type 1 strait splinelanu upayogistundi.
angulaala-viluva kaligina shaftlu gundrani, deerghachaturasraakaara, chadarapu ledhaa cheelikalu kaligi untaayi; metrik shaftlu nakshatram, ganta ledhaa football aakaaramlo untaayi.
vyavasaya panimutla nundi nirantaram perugutunna harspower avasaralu mariyu vyavasaya tractorlalo adhika harspower enginelu vyavasthaapinchabadutunnandu, iso 500kii inca pedda rakam (rakam 4 gaa perkonabadindi) jodinchabadindi. idhi 1300 arpm adhika bhramana vegamtho panichestundi, tadwara takkuva tark sthaayilalo vidyut badileeni anumatistundi. eee shaft 57.5 millimetres (mimi) pradhana vyaasamtho 22 splinelanu kaligi untundi. idhi 450 kilowatts (kw) ledhaa sumaru 600 harspower (hp) varaku pto pavarlanu nirvahinchadaaniki uddesinchabadindi.
naalugu rakalu, tractor cab lopala nundi venakki tirigi chusinappudu apasavyadisalo tirugutaayi; tractor venuka nilabadi neerugaa shaft vaipu chustunnappudu, adhi savyadisalo tirugutundi.
1948 land rover vanti konni prarambha parikaraalatoe 10-spline rakanni upayoginchaaru. aaru-spline adaptor saadhaaranamgaa sarafara cheyabadindi. vyavasaya yantraala tayaareedaarulu naamamaatrapu pii. tii. oo. power specification andinchadam aacharam, idhi shaft vadda andubaatulo unna takshana saktini suuchistumdi. kotta tractorlalo 540/540 e mariyu/ledhaa 1000/1000 e empikalu undavacchu, ivi takkuva injin vegaanni upayoginchi takkuva injin vegaanni upayoginchi, nimishaaniki avasaramaina viplavaalanu nirvahinchadaaniki, takkuva indhanaanni upayoginchi mariyu enginpy takkuva ottidini unchadaaniki, takkuva shakti-demand gala endugaddi reklu ledhaa teddarlu vanti konni panimutlaku vidyutnu andinchadaaniki veelu kalpistaayi, tadwara saamarthyaanni meruguparustundi mariyu kharchulanu taggistundi. 
pii. tii. oo. roopakalpanaku modati parisrama pramaanaanni april 1927loe yea. ess. yea. eee (dhi american society off agricultural injaneers) sweekarinchindi. pii. tii. oo. bhramana vegam 536 ± 10 aarr. pii. emm. gaa perkonabadindi; dhisha savyadisalo undhi. aaa tarvaata vegam 540 arpmki maarchabadindi.
vaanijya vahanalalo upayoginchandi.
trucku prasaralu okati ledhaa anthakante ekkuva pradaesaalanu kaligi untaayi, ivi pii. tii. oo. nii amarchadaaniki anumatistaayi. pii. tii. oo. nii vidigaa konugolu cheyali mariyu prasaram yokka bhouthika antarmukhaanni anukuulamaina pii. tii. oo. thoo saripolchadaaniki jaagratta avasaram. pii. tii. oo. sarafaraadaarulaku saadhaaranamgaa prasaram yokka tayari, namuunaa mariyu krama sankhya vivaralu kooda avasaram. prasaram chuttoo unna bhouthika sthalam pto nii vyavasthaapinchadaaniki veelu kalpinchela chusukovadaniki kooda jaagratta avasaram. pradhana prasaara clutch mariyu pii. tii. oo. paine panichese remot controll mechanismnu upayoginchi pii. tii. oo nimagnamai mariyu vidadeeyabadindi. saadhaaranamgaa, pii. tii. oo nii nimagnam cheyadaaniki gaali kavatanni upayogistaaru, conny yaantrika anusandhanam, vidyut ledhaa hydraulic yantraangam kooda empikalu.
chaalaa unimaglu mundu mariyu/ledhaa venuka pitos mariyu hydralicsto paatu moodu paayintla hitch vyavasthalatho vastaayi.
vaati dwara vartimpajeyagala nirantara mariyu antaraayam kaliginche tark prakaram unitlu rate cheyabadataayi mariyu vividha namuunaalu ververu "pto shaft rotation tuu injin rpm" nishpattulanu andistaayi.
chaalaa sandarbhaalalo, pii. tii. oo neerugaa hydraulic pampuku anusandhaaninchabadutundi. idhi hydraulic dravam vyavastha dwara yaantrika saktini vahanam chuttoo unna yea pradaesaanikainaa prasaram cheyadaaniki anumatistundi, ikkada hydraulic motaru daanini tirigi rotary ledhaa leanier mechanical forsga maarustundi. saadhaarana anuvartanaaluh
split shaft.
pii. tii. oo. kii saktini andinchadaaniki trucku yokka drive shaftku split shaft pii. tii. oo. nii amarchutaaru. atuvanti unit anedi vahanam yokka drive shaftnu rendu bhagaluga vaeru chese adanapu gearbox
injin yokka saktini swatantramgaa axil-facing shaft ledhaa adanapu pto avtput shaftku mallinchadaaniki unit roopondinchabadindi. idhi dantaalu ledhaa kukka baari vanti rendu swatantra baari dwara jarugutundi, veetini puurtigaa drive line standstill vadda matrame operate cheyavachu. pradhana gearbox gair empika dwara bhramana vegaanni maarustundi kabatti, vahanam kadulutunnappudu pii. tii. oo. nii operate cheyalemu.
4x4 vahanalalo, split shaft pto gearbox dwara venuka drive shaft matrame upayoginchabadutundi, pto operation samayamlo mundu axil drive shaftnu puurtigaa vidadeeyadaaniki vahanam yokka 4x4 drive skeem "enchukogalige 4wd" rakaniki chendinadigaa undaali.
hydraulic pampu kakunda veredaanni neerugaa pii. tii. oo. kii anusandhaaninchadam kooda saadhyameh udaaharanaku, fair truck pampulu.
"sandwitch" split shaft.
sandwitch" rakam split shaft unit injin mariyu transmission madhya amarchabadi, rahadari nirvahana vahanalu, agnimaapaka vahanalu mariyu off-road vahanalalo upayoginchabadutundi. eee unit injin shaft nundi neerugaa drivenu pondutundi mariyu puurti injin saktini pii. tii. oo. kii andinchagaladu. saadhaaranamgaa eee unitlu vaati swantha saralata vyavasthatho vastaayi. sandwitch mountu shaili kaaranamgaa, gearbox injin nundi dhooramgaa taralinchabadutundi, samsthaapanaku anugunamgaa driveline avasaram.

