Kodu - Teadmised - Üksikasjad

Äärik ristkülikukujuline niit

Äärik ristkülikukujuline niit

 

hammas profiil on ruut, profiil nurk =0} kraad , the hammas paksus on pool niit pigi, the ekvivalent hõõrdumine koefitsient on väike, the efektiivsus on kõrge, aga juur tugevus on madal, aksiaalne kliirens põhjustatud niit kulumine on raske kompenseerimine, ja joondus täpsus madal ja raske viimistlus, see kind niit niit on olnud harva Kasutada

äärik silindriline toru niit

 

hammas profiil nurk =55 kraad , the hammas hari on kaarekujuline, seal on ei radiaalne vahel kruvi keermed, ja tihedus on hea. nimi diameeter on nominaal läbimõõt on toru (joonis 9-8c). see kasutatakse vees, gaas, määrimine ja muu torustik süsteemid on ühendatud

The tooth profile angle =55 degree , in inches, and the pitch is expressed in the number of teeth per inch, and there also coarse and fine teeth. Peamiselt kasutatud in Britain, the United States and other countries, and üldiselt ainult kasutatud in repairs in in China.

Tavaline äärik niit:

 

In the national standard, kolmnurkne meetriline niit with profile angle =60} degree is called tavaline niit, ja the major diameter d is the nominal diameter. The same nominal diameter can have threads with multiple pitches, of which the largest pitch is called coarse thread, the other are called fine thread, and coarse thread is the most widely used. The small diameter of the fine thread is large and the angle of rise is small, so it has good self-locking performance and high strength, but it is not kulumiskindel and easy to slide. It is is sobib for õhukese seinaga osad, dünaamiline koormus ühendus ja peen reguleerimine mehhanism reguleerimine.

Paigaldamine äärik polt komplekt

 

1) kuju kuju of the parts at the joint surface should be as simple as possible, soovitavalt square, round or ristkülikukujuline. The number of poldid on the same circumference should be 4, 6, 8, 12, etc., to facilitate indexing during processing. The centroid of the bolt group should coincident with the centroid of the joint surface of the part. It to have two sümmeetriline teljed risti to iga teine to hõlbustamine töötlemine ja arvutamine. keskmine of vuuk pind on sageli õõnes välja to vähendada summa vuug töötlemine ja vuuk pind ja vuuk pind. mõju tasasus saab ka suurendada ühendus jäikus.
2) For bolt groups subjected to torque, the poldid should be far away from the axis of symmetry to reduce the force on the poldid.
3) For bolt groups subjected to lateral force, the number of bolts arranged along the direction of force should not over 6-8, so as to avoid serious ebaeven force on each bolt.
4) The shape, size, material, etc. of the kinnitusdetailid kasutatud in the same bolt group should be consistent to hõlbustamine töötlemine ja kokkupanek.
5) Millal kokkupanek the keermestatud ühendus, the tööriist peaks olema piisavalt töö ruum, ja a kindel spanner space size should be garanteeritud.

www.superbheater.comwwwsuperbheatercom

Küsi pakkumist

Ju gjithashtu mund të pëlqeni