Njira yosinthira ma torque pakati pa screw ndi mandrel ndiye chinsinsi chozindikiritsa groove yakuya.Kusintha kwa makokedwe pakati pa screw element ndi mandrel poyambilira kudalumikizidwa ndi makiyi athyathyathya, omwe sanangochepetsa kuzama kwa wononga poyambira ndikuwonjezera voliyumu yaulere, komanso mphamvu ya makiyi athyathyathya sakanatha kukwaniritsa zofunikira za ntchito zina zopanga.
- 1.Spiral groove kuya
Kuzama kwa screw groove ndi gawo lofunikira lamapasa - screw extruder.Nthawi zambiri amasonyezedwa mosalunjika ndi chiŵerengero cha wononga m'mimba mwake ndi wononga muzu awiri.Mtengo ndi chizindikiro chofunika kusonyeza luso mlingo wa amapasa wononga extruder.Pakali pano, chiŵerengero cha m'mimba mwake kunja kwa wononga mpaka muzu awiri a wononga mu m'badwo waposachedwa (m'badwo wachisanu ndi chimodzi) coaxial twin-screw extruder yoimiridwa ndi WP waku Germany ndi D/Di = 1.55.Pali zinthu zambiri zomwe zimalepheretsa D / Di, kuwonjezera pa mtunda wapakati wa shaft yotulutsa gearbox ya screw yoyendetsa, screw yokhayo imakhalanso ndi vuto lalikulu pa D / Di: monga kukana kukameta ubweya wa screw mandle-shaft, njira yosinthira torque pakati pa screw element ndi mandle-shaft, kapangidwe ka screw element, etc.
- (1) Kupambana pakusankha kwazinthu, ukadaulo wokonza ndi ntchito yochizira kutentha kwa mandrel kumapangitsa kuti mphamvu ya torque ya mandrel ikhale yabwino kwambiri, ndipo chiŵerengero cha m'mimba mwake cha wononga chimawonjezeka kuyambira 36 mpaka 50, kapena kupitilira apo.
- (2) Kupita patsogolo kwaukadaulo kwa makina apadera oyendetsa ma giya a co-directional twin-screw extruder kumapereka chitsimikizo chotumizira mphamvu pakulowetsa kwa torque komwe kumafunidwa ndi zomangira zakuya pansi pa mtunda wapakati, kupangitsa wononga D/ Di amapita ku 1.55.
- (3) Njira yosinthira ma torque pakati pa screw ndi mandrel ndiye chinsinsi chozindikiritsa poyambira.Kusintha kwa makokedwe pakati pa screw element ndi mandrel poyambilira kudalumikizidwa ndi makiyi athyathyathya, zomwe sizinangochepetsa kuzama kwa wononga poyambira ndikuwonjezera voliyumu yaulere, komanso mphamvu ya makiyi athyathyathya sakanatha kukwaniritsa zofunikira. ntchito zina zopanga.Kugwiritsa ntchito ma torque amitundu yambiri mumtundu wa involute kumatha kupititsa patsogolo kuya kwa screw groove pansi pawiri wakunja komweko kwa screw.M'zaka zaposachedwa, pophunzira kuchokera kuukadaulo wapamwamba wakunja, China yachita bwino kwambiri pakukonza ndi kupanga.Pakadali pano, yatha kupanga mawonekedwe a involute spline okhala ndi mawonekedwe ofanana ndi zomangira zakunja, motero akupanga zopambana pakuzama kwa screw groove.
- (4) Kupambana kwa kapangidwe kazinthu.Kapangidwe ka chipika chopondera chimathetsa ukadaulo wofunikira pakupangira, kapangidwe kake kamasintha kuchokera ku mtundu woyambirira wachidutswa chimodzi, mtundu wosonkhanitsidwa kupita ku mtundu waposachedwa, motero zimatsimikizira kuzama kwa screw groove kuchokera ku mphamvu ya chinthucho, kumapangitsanso kusintha kwa wononga kuphatikiza ndi msonkhano wa wononga odalirika komanso yabwino.
Mwachidule, zopambana pamakina otumizira magiya, kumeta ubweya wa mandrel, mawonekedwe otumizira ma torque a screw element ndi mandrel, komanso kupanga ndi kupanga screw element kumatsimikizira chitukuko chopambana cha m'badwo watsopano wa slot yothamanga kwambiri komanso yozama. extruder.
- 2. New screw element
Synthetic twin screw extruder ndiye gawo loyambira la wononga, pambuyo pa kubwera kwa wononga wononga pawiri, ndipo kukula kwa wononga ndi wononga zinthu nthawi zonse kwakhala kafukufuku wopanga mapulogalamu ndi njira yayikulu, zomangira kuchokera kukukula kofunikira koyambirira mpaka "kumanga chipika. ”, ulusi atatu kuchokera kumutu umodzi kupita kumutu, pambuyo pake pomwe kapangidwe kawiri, mtundu wa zinthu zomangira, kapangidwe kake ndi kusiyana kwa ntchito.Pangani zodzitchinjiriza zosakaniza za mtundu wa screw element, m'mphepete mwa mtundu wa chosakanizira cha screw element, toothed screw element, pressure regulating screw element, ndi zina, za twin screw extruder screw element yomwe idapanga luso lochulukirapo, chowonjezera ndi changwiro, limbitsani ndikuwongolera njira ya mapasa wononga extruder kusanganikirana ndi plasticizing zotsatira, kubalalitsidwa, kukameta ubweya, kuthamanga, ndi chosinthika.
- 3.Gear box torque rating magawo
Ma torque grade parameter M / A3 ya bokosi la gear ndi chizindikiro chofunikira kwambiri cha coaxial twin-screw extruder.Mtengo wake umayimira mulingo waukadaulo wa coaxial twin-screw extruder ndikuyimira mphamvu ya torque ya bokosi la zida pansi pa mtunda wina wapakati.Chifukwa cha kufalikira kwa mawonekedwe a coaxial twin-screw extruder, torque ya giya imalowetsedwa mu bokosi la gear ndi shaft yothamanga kwambiri.Kupyolera mu kutsika ndi kugawa kwa torque, torque imaperekedwa ku mapasa-screw ndi ma shaft awiri omwe ali ndi mtunda wochepa wapakati pansi pa chikhalidwe cha mphamvu yaikulu ya axial.Chifukwa chake, chiŵerengero cha M/A3 pakati pa mtunda wapakati wa shaft yotulutsa ndi torque yotulutsa chakhala chizindikiro chofunikira kuyeza luso lake.Choncho kamangidwe ka bokosi zida amapasa wononga extruder ndi zovuta kwambiri poyerekeza ndi kamangidwe ndi chitukuko cha ambiri zida kufala dongosolo.Pakadali pano, China yachita bwino kwambiri pamachitidwe otumizira zida, kugawa yunifolomu ya torque ndi yankho la axial Force.Magawo a torque grade of extruder yoyeserera asinthidwa kuchokera ku 4.Seven amapita ku eyiti.8.Imayala maziko abwino akukula kwa liwiro lalikulu komanso bokosi la giya la torque lalitali la extruder yopanga.
Pankhani ya moyo wautumiki wa bokosi la zida, ndikuwongolera ndikuyendetsedwa ndi mtundu watsopano wa njira zamakina ambiri, osati kupititsa patsogolo mphamvu yotumizira, komanso kudzera mu dongosolo loyenera la olamulira, kuthetsedwa kwa zida ndi kukankha katundu, idachepetsa kwambiri kuyendetsa kwamagetsi ndi njira yogwirira ntchito yamphamvu yowonjezera, kupangitsa kuti nthawi yayitali ikhale yochepetsera moyo wautumiki wa bokosi la giya la anti-kutopa kwa giya, magwiridwe antchito amasinthidwe amapita patsogolo kwambiri, atatha kutengera multiplex drive, kutulutsa Kupsinjika kwa mainchesi a mayendedwe a axle kumachepa kwambiri, chifukwa chake, m'njira zambiri kuwongolera zida, makina olimbikitsira, gawo logawa ma torque a moyo wautumiki, Moyo Wopangidwira mpaka 10 a.
- 4.Kuthamanga kwa screw
Liwiro la screw ndi gawo lina lofunikira kuyeza kalasi yantchito ya extruder ndi njira yomweyi ndipo ndi njira yofunikira yosinthira index ya magwiridwe antchito a extruder.Zimakhudza mwachindunji magawo a torque grade ndi mphamvu yopanga zida.Kuthamanga kwa screw rotation kumatengera luso komanso kakulidwe ka ma drive transmission system, kuthekera kwa screw torque pansi ndi ntchito yolimbana ndi kutopa, popanga njira yopatsira mtundu watsopano ndikukhathamiritsa kapangidwe katsopano, kusankha magawo ofunikira omwe atumizidwa kunja. , kumatanthauza, kuyang'anitsitsa kwazitsulo zopota ndi kuwongolera kutentha kwa kutentha, ndi screw element ndi spindle, involute spline yopambana yopangidwa mwa mawonekedwe a yunifolomu kugawa kupanikizika, zomwe zimapangitsa kuti zitheke kuwonjezereka kwa liwiro lozungulira. ang'onoang'ono mkulu-liwiro experimental kupanga amapasa-screw extruder makina kudzera mayeso mafakitale.
- 5.Kupanga mphamvu
Mulingo waukadaulo ndi magwiridwe antchito a zidazo ndi cholinga chokweza mphamvu zopangira, kuchepetsa kugwiritsa ntchito mphamvu ndikuwongolera kudalirika.Kupanga mphamvu ndiye chinthu chachikulu kuwunika magwiridwe antchito a unit: (1) kusintha liwiro wononga wononga, mtundu womwewo wa kupanga akhoza kuwirikiza kawiri; (2) kugwiritsa ntchito wononga zozama wononga poyambira, kuwonjezera wononga voliyumu, kusintha liwiro unit ndi mphamvu unit nthawi zoyendera; (3) ntchito mapasa wononga ndi mpope zida kuphatikiza luso njira, kusintha kudalirika kwa bokosi kufala, kuchepetsa axial mphamvu zonyamulidwa ndi zida, kuthetsa malire a axial mphamvu kuchepetsa linanena bungwe la chinthu, kusintha linanena bungwe extruder.
Nthawi yotumiza: May-10-2017