Bearings ndeimwe yeanonyanya kushandiswa ma mechanical parts, anotakura kutenderera uye kudzoreredza kufamba kweshaft, kunyorovesa kufamba kweshaft nekuitsigira.Kana mabheya akashandiswa, kupokana uye kupfeka zvinogona kuderedzwa.Kune rimwe divi, kana mhando yekutakura yakadzikira, inokonzeresa kutadza kwemuchina, saka kutakura kunoonekwa seimwe yeakakosha mechani zvikamu.
Saka ndeapi marudzi emabhengi aripo?
Kune marudzi maviri makuru emabearings: sliding bearings uye rolling bearings.
Sliding bearing:
Kutsvedza kwacho kunowanzo kuumbwa nechigaro chinotakura uye gwenzi rinotakura.Mukutsvedza mabheji, shaft uye nzvimbo yekutakura zviri kutarisana zvakananga.Inogona kuramba kumhanya kukuru uye kuvhunduka mitoro.Plain bearings anoshandiswa muinjini dzemotokari, ngarava, uye michina.
Ndiyo firimu yemafuta inotsigira kutenderera.Firimu yemafuta ifirimu yakapararira yakapararira.Kana tembiricha yemafuta ichikwira kana mutoro wakanyanya kurema, iyo firimu yemafuta inova mutete, zvichiita kuti simbi ibatane uye inopisa.
Mamwe mabasa anosanganisira:
1. Mutoro unobvumirwa wakakura, kudengenyeka uye ruzha zvishoma, uye zvinogona kumhanya chinyararire.
2. Kuburikidza nekushandiswa kwechimiro chekuzora uye kugadzirisa, hupenyu hwebasa hunogona kushandiswa semi-chisingaperi.
Rolling bearing
Rolling bearings ane mabhora kana rollers (round bars) kuderedza frictional resistance.Rolling bearings dzinosanganisira: deep groove ball bearings, angular contact ball bearings, tapered roller bearings, thrust bearings, nezvimwe.
Mamwe mabasa anosanganisira:
1. Kuderera kwekutanga friction.
2. Kuenzaniswa nemabhengi anotsvedza, pane kukwesha kushoma.
3. Sezvo ukuru uye kururamisa kwakaenzana, zviri nyore kutenga.
Kuenzanisa kwemamiriro ekushanda emabheya maviri:
Kuenzanisa kwekuita:
Ruzivo rwekuwedzera: ruzivo rwekutanga rwekuzora mvura
Fluid lubrication inoreva mamiriro ekuzora umo maviri akaparadzaniswa zvachose nefirimu remvura.Pane inotsvedza shaft, kudzvinyirirwa kunogadzirwa nemvura mukutakura uye gomba reshaft rinotsigira mutoro pakutakura.Izvi zvinonzi fluid film pressure.Lubrication inoderedza kusakara uye kupokana kuburikidza nekufamba kwakatsetseka.Kana yakashandiswa kwenguva yakareba, mafuta ekuzora anodiwa.
Kupfupisa, mabhengi ndeimwe yeanonyanya kushandiswa zvikamu (yakajairwa zvikamu) mumakanika dhizaini.Kushandiswa kwakanaka kwemabheri kunogona kuvandudza mashandiro echigadzirwa uye kuderedza mutengo.Naizvozvo, zvinonyanya kukosha kugona ruzivo rwakakodzera rwemabheya.
Nguva yekutumira: Kubvumbi-15-2021
