Tsamba la S-Type Tiller, Tsamba Lozungulira Lopindika
Ma spring a mtundu wa S (omwe amadziwikanso kuti mano a mtundu wa S kapena zogwirira mano a mtundu wa spring) ndi zinthu zofunika kwambiri pamakina olima ulimi, zomwe zimagwiritsidwa ntchito kwambiri pamakina a ulimi monga alimi, ma rotary tillers, ma disc harrows, ndi obzala mbewu. Kapangidwe kake kapadera ka mawonekedwe a S kamawathandiza kuti azitha kuchita gawo lofunikira pakuchepetsa kugwedezeka kwa elastic ndi kumasula nthaka panthawi yolima nthaka, zomwe zimapangitsa kuti akhale gawo lofunikira kwambiri pa ntchito zaulimi zamakono.
Chogulitsachi chimapangidwa pogwiritsa ntchito chitsulo chapamwamba kwambiri, chokhala ndi mitundu monga 65Mn, 60Si2Mn, ndi 28MnSiB. Chitsulo cha manganese cha 65Mn chimawonetsa kukana kuvala bwino, mphamvu yokoka, komanso kuchira kosalala; pomwe chitsulo cha 60Si2Mn silicon-manganese chikuwonetsa magwiridwe antchito apamwamba pankhani ya malire a elasticity ndi mphamvu yotopa. Chogulitsachi chimadutsa munjira yovuta yochizira kutentha: choyamba, kuzimitsa kumagwiritsidwa ntchito kuwonjezera kuuma, kutsatiridwa ndi kutenthetsa kuti kulamulire kuuma komaliza mkati mwa mulingo woyenera wa 38-46 HRC, kukwaniritsa bwino kuuma ndi kulimba. Izi zimatsimikizira kukana kuvala pamene zikupewa chiopsezo cha kusweka kwa brittle. Pamwamba pake pamawomberedwa kuti achotse oxide wosanjikiza kenako ndikupakidwa utoto wotsutsana ndi dzimbiri kapena utoto, zomwe zimapangitsa kuti kukana dzimbiri kukhale kolimba komanso nthawi yotopa ndi nthawi 7-8.
Mphamvu yabwino kwambiri yobwezeretsa elasticity: Kasupe wa mtundu wa S amapangidwa ndi chitsulo chapadera cholimba kwambiri ndipo amalimbikitsidwa kale. Ngakhale atasintha kwambiri akagwiritsidwa ntchito, amatha kubwezeretsa mawonekedwe ake oyambirira mpaka pamlingo wapamwamba ndikusunga magwiridwe antchito okhazikika.
Kuchepetsa kugwedezeka ndi mphamvu yabwino kwambiri: Kapangidwe ka S-curve kamapatsa kasupe mawonekedwe abwino kwambiri ochepetsera kugwedezeka ndi kuyamwa kwa zinthu. Makina olima akakumana ndi zipolopolo zolimba za dothi kapena miyala panthawi yogwira ntchito, kasupeyo amatha kuyamwa mphamvu ya kugwedezeka kudzera mu kusintha kwa elastic, kuteteza bwino zigawo zazikulu ndikukweza kukhazikika kwa ntchito.
Kugwiritsa ntchito kwakukulu: Koyenera kugwiritsidwa ntchito m'malo ouma (osamasuka komanso osweka), makamaka koyenera kubzala mbewu monga beetroot zomwe zimafunikira kwambiri pa bedi la mbewu. Kuzama koyenera kogwirira ntchito ndi 2-8 cm, liwiro logwirira ntchito limasungidwa pakati pa 6.0-8.0 km/h, ndipo mphamvu yofunikira ya thirakitala ndi 18-22 horsepower pa mita imodzi.
Akasupe okhala ngati S amagwiritsidwa ntchito m'njira zosiyanasiyana pa ulimi: angagwiritsidwe ntchito kumasula nthaka m'maziko, kupititsa patsogolo kulowa kwa nthaka komanso kulowa kwa madzi; akagwiritsidwa ntchito pokonzekera bedi la mbewu, amatha kuswa zibuluma za nthaka ndikulinganiza nthaka, zomwe zimapangitsa kuti mbewu zimere bwino; ndi oyeneranso kupopera udzu, kuchotsa mizu ya udzu ndi zitsamba zazing'ono bwino; ndipo posamalira minda ya zipatso, angagwiritsidwe ntchito kuphimba nthaka, kudula mapiri, ndi kuwononga pang'ono.
