Mndandanda Wopangira Zozungulira

Ma roller bearing ndi zinthu zofunika kwambiri zolondola zomwe zimagwiritsidwa ntchito kwambiri mu makina opanga nsalu, ma auto assemblies, ma gearbox a mafakitale, ndi makina olemera, zomwe zimagwira ntchito yofunika kwambiri pochepetsa kukangana ndikuwonetsetsa kuti kuyenda kozungulira kumakhala kosalala. Mwa kapangidwe kake, roller bearing yokhazikika imakhala ndi mandrel 1 ndi ma high-precision bearing omwe amayikidwa mbali zonse ziwiri, zomwe zimapangidwa kuti zipirire mikhalidwe yovuta yogwirira ntchito m'malo osiyanasiyana amafakitale. Monga zigawo zazikulu mu makina otumizira makina, kudalirika kwawo kumakhudza mwachindunji magwiridwe antchito, moyo wautali, komanso chitetezo cha zida zonse.

Mndandanda wa ma roller bearing umagawidwa m'magulu awiri ofunikira: mawonekedwe ndi kapangidwe. Magulu a mawonekedwe amaphatikizapo ma cylindrical roller bearing, ma tapered roller bearing, ma spherical roller bearing, ndi ma needle roller bearing, iliyonse yokonzedwa kuti igwirizane ndi zosowa za katundu ndi malo. Kusiyanasiyana kwa mapangidwe kumaphatikizapo mawonekedwe a mzere umodzi kapena mizere iwiri, mapangidwe opindika kapena osapindika, nyumba zotsekedwa kapena zotseguka, zonse zomwe zimakonzedwa kuti zigwirizane ndi mitundu yosiyanasiyana ya katundu wolemera wa radial, katundu wa axial, liwiro lalikulu lozungulira, ndi kusakhazikika bwino kwa shaft.

Kumvetsetsa mitundu ikuluikulu ya ma roller bearings ndikofunikira kwambiri popanga zisankho zodziwa bwino:

Maberiyani ozungulira a cylindrical ndi abwino kwambiri pogwira ntchito ndi katundu wolemera wa radial komanso liwiro lalikulu lozungulira, ndipo amatha kunyamula pang'ono axial displacement pokhapokha ngati mphete zonse ziwiri zili ndi flange - zomwe zimapangitsa kuti zikhale zabwino kwambiri pa ma rollers a makina opangidwa ndi nsalu ndi ma shaft amagetsi. Maberiyani ozungulira a tapered adapangidwa kuti azithandizira katundu wozungulira wa radial komanso wa single-direction, ndipo nthawi zambiri amagwiritsidwa ntchito awiriawiri m'ma hub a magalimoto ndi ma gearbox a mafakitale kuti agwirizane ndi mphamvu za bidirectional.

Ma bearing ozungulira ozungulira amadziwika chifukwa cha kuthekera kwawo kuthana ndi katundu wolemera wa radial, katundu wa axial wozungulira mbali zonse ziwiri, ndikukonza zolakwika za shaft zomwe zimachitika chifukwa cha zolakwika zoyika kapena kupotoka kwa magwiridwe antchito, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito zida zolemera monga makina otumizira ndi makina oyeretsera migodi. Ma bearing ozungulira a singano, okhala ndi kapangidwe kake kakang'ono komanso mphamvu yayikulu yonyamula katundu poyerekeza ndi kukula kwawo, ndi omwe amasankhidwa kwambiri pamagwiritsidwe ntchito omwe ali ndi malo ochepa oyika, monga mapampu a hydraulic ndi ma transmissions agalimoto.

Maberiya odulira othrust, kuphatikizapo maberiya odulira singano, amapangidwa mwapadera kuti athe kupirira katundu wolemera wa axial, womwe umagwiritsidwa ntchito kwambiri mu ma spindles a zida zamakina ndi makina okweza.

Njira yosankha chogwirira chozungulira choyenera imaphatikizapo kuwunika kwathunthu magawo ofunikira ogwirira ntchito:
choyamba, dziwani mtundu ndi kukula kwa katundu (wozungulira, wa axial, kapena wophatikizidwa);
Chachiwiri, dziwani liwiro lozungulira lofunikira komanso mulingo wolondola (zofunikira kwambiri pakugwiritsa ntchito molondola kwambiri monga makina a CNC);
chachitatu, ganizirani kutentha komwe kumagwiritsidwa ntchito (kuti musankhe mabearing okhala ndi zinthu zoyenera zosagwira kutentha);
ndipo potsiriza, fufuzani zolepheretsa malo kuti muwonetsetse kuti bearing ikugwirizana ndi kapangidwe ka chipangizocho.