Mitmed laagrite tavaliste positsioneerimisvormide viisid
The inner and outer rings of the end bearing are fixed in two directions and bear two-way axial force. The bearing at the other end is not fixed axially, allowing the heated expanded shaft to extend freely. Due to different types of bearings, "two-way fixed" and "floating" " The structure of the bearing is also different. Usually, the bearing subjected to the smaller radial force is fixed in both directions to bear the axial force and coordinate the service life of the two bearings; when there is no axial force on the shaft, the bearing subjected to the smaller radial force swims to make the swimming convenient. This positioning method is often used for the shaft with large span or the shaft with high working temperature. How should the bearing be positioned on the shaft and the chassis frame? In the shafting, there are During the operation of some shafts, due to the working load, environment, speed and other problems, the shafts will have thermal expansion and cold contraction in the axial and radial modes; some shafts also need to transfer the load force to the frame because they bear a large axial load. There are three common bearing positioning modes
Ühesuunaline kinnitus mõlemas otsas
See positsioneerimismeetod seisneb selles, et laagri sisemine rõngas kinnitatakse luku külge ja blokeeritakse võlli õlaga ning laagri välimine rõngas on blokeeritud laagri otsakattega. Mõlemas otsas olevad laagrid takistavad vastavalt võlli ühesuunalist{{0}}liikumist. Et vältida laagri kinnikiilumist võlli termilise pikenemise tõttu, jääb laagri otsakatte ja laagri välisrõnga otspinna vahele 0,2 0,3 mm vahe radiaalse jaoks laager; radiaalse tõukejõu laagri jaoks jääb laagri otsakatte ja võlli vahele 0,2 0,3 mm vahe Laagripesade vahel kasutatakse tihendite rühma laagri sisemise kliirensi reguleerimiseks. See positsioneerimismeetod sobib väikese ülekandemomendi ja madala töötemperatuuriga võllile.
Ühest otsast fikseeritud kahesuunaline ja ühest otsast ujumine
The inner and outer rings of the bearing at one end are fixed in two directions and bear two-way axial force. The bearing at the other end is not fixed in the axial direction, allowing the heated and expanded shaft to extend freely. Due to the different types of bearings, they are "two-way fixed" and "swimming" "The structure of the bearing is also different. Usually, the bearing subject to the smaller radial force is fixed in both directions to bear the axial force and coordinate the service life of the two bearings; when there is no axial force on the shaft, the bearing subject to the smaller radial force swims to make the swimming convenient. This positioning method is often used for the shaft with large span or the shaft with high working temperature.
Toetus mõlemast otsast
Kui kalasabahammasrataste paar võrdub, tekib tootmis- ja paigaldusvigade tõttu kerge aksiaalne liikumine. Hammasratta kinnijäämise vältimiseks on väikese kalasabahammasratta võlli kaks tuge kujundatud sageli ujumisrežiimiks ja kalasabahammasratta võllil olevad kaks tuge on fikseeritud. Kui võlli tugi on liuglaager, paikneb võll aksiaalselt võlli õla poolt. Kui üks ots vajab kinnitamist, kinnitatakse fikseeritud otsas oleva tihvti mõlemad küljed. Õlg või krae või radiaalse liuglaagri ja tõukejõu liuglaagri kombinatsioon.
