Qee qhov kev paub txog xov

Qee qhov kev paub txog xov

1 、 Xov Txhais

Xov yog hais txog ib tug kauv zoo li tus, nruam protrusion nrog ib tug tshwj xeeb cross-section ua rau saum npoo ntawm ib tug cylindrical los yog conical puag. Cov xov yog muab faib ua cylindrical threads thiab conical threads raws li lawv niam txiv duab;

Raws li nws txoj hauj lwm hauv niam txiv lub cev, nws tau muab faib ua cov xov sab nraud thiab cov xov sab hauv, thiab raws li nws cov duab ntu ntu (cov hniav zoo nkauj), nws muab faib ua cov duab peb sab, cov duab plaub, cov xov trapezoidal, serrated threads, thiab lwm yam. tshwj xeeb zoo li cov xov.

2 、 Hais txog kev paub

Xov machining yog ib tug nruam protrusion nrog ib tug tshwj xeeb cov hniav uas tsim raws lub helix ntawm ib tug cylindrical los yog conical nto. Lub protrusion yog hais txog qhov khoom ntawm ob sab ntawm ib txoj xov.

Kuj tseem hu ua cov hniav. Hauv kev ua tshuab, cov xov raug txiav rau ntawm lub cylindrical ncej (los yog qhov chaw sab hauv) siv lub cuab yeej lossis lub log sib tsoo.

Nyob rau ntawm no, lub workpiece tig thiab lub cuab yeej txav ib qho kev ncua deb ntawm lub axis ntawm lub workpiece. Cov cim txiav los ntawm lub cuab yeej ntawm lub workpiece yog threads. Cov xov tsim nyob rau sab nrauv yog hu ua cov xov sab nraud. Cov threads tsim nyob rau saum npoo ntawm lub puab lub qhov yog hu ua internal threads.

Lub hauv paus ntawm ib tug xov yog lub helix nyob rau saum npoo ntawm ib ncig axis. Cov xov profile tuaj yeem muab faib ua ntau hom

Muaj ntau ntau hom xov profiles:

Cov xov tsis tu ncua (daim duab peb sab): Nws cov hniav zoo li daim duab peb sab sib npaug, nrog lub kaum sab xis ntawm 60 degrees. Tom qab cov xov sab hauv thiab sab nraud yog screwed rau hauv, muaj qhov sib txawv radial, uas tau muab faib ua ntxhib thiab nplua xov raws li qhov loj ntawm lub suab.

Cov yeeb nkab xov: Cov hniav zoo li cov yeeb nkab tsis kaw yog ib daim duab peb sab isosceles, nrog lub kaum sab xis ntawm 55 degrees thiab lub kaum sab xis loj nyob rau sab saum toj ntawm cov hniav.

Cov hniav cov yam ntxwv ntawm cov yeeb nkab kaw yog zoo ib yam li cov uas tsis yog cov yeeb nkab kaw, tab sis nws yog nyob rau ntawm lub conical yeeb nkab phab ntsa, nrog ib tug isosceles trapezoidal cov hniav thiab lub kaum sab xis ntawm 30 degrees.

Trapezoidal xov: Nws cov hniav zoo li ib tug isosceles trapezoid, nrog lub kaum sab xis ntawm 30 degrees, thiab yog dav siv nyob rau hauv cov ntsia hlau mechanisms rau kis tau tus mob los yog cov lus tsa suab.

Rectangular xov: Nws cov hniav zoo li square, thiab lub kaum sab xis ntawm tus hniav yog sib npaug li 0 degrees. Nws muaj kev sib kis tau zoo, tab sis tsis tshua muaj qhov nruab nrab qhov tseeb thiab lub hauv paus tsis muaj zog.

serrated xov: Nws cov hniav zoo li ib tug tsis sib npaug trapezoidal duab, nrog ib tug hniav flank lub kaum sab xis ntawm 3 degrees ntawm qhov chaw ua hauj lwm. Lub hauv paus ntawm cov xov sab nraud muaj lub kaum sab xis loj, thiab kev sib kis tau zoo thiab lub zog siab dua li cov xov trapezoidal.

Tsis tas li ntawd, muaj lwm cov xov tshwj xeeb, xws li V-shaped threads, Whitney threads, round threads, thiab lwm yam. Cov xov xov no muaj lawv tus kheej cov yam ntxwv thiab raug xaiv thiab siv raws li qhov sib txawv daim ntawv thov scenarios.