Dab tsi yog cov khoom siv feem ntau siv rau zawv zawg bearing vaj tse? Yuav ua li cas xaiv ntawm cov khoom sib txawv?

Lub precompression tsim ntawm kev sib tsoo pob screws yog cov txheej txheem tseem ceeb los txhim kho nws qhov nruj, tshem tawm axial clearance thiab txhim kho cov lus teb muaj peev xwm. Precompression txoj kev thiab xaiv yuav tsum tau txiav txim siab raws li qhov precision, load thiab ceev ntawm daim ntawv thov scenario.

Positioning Preloading (fixed preloading)
Lub hauv paus ntsiab lus: los ntawm kev kho lub axial txoj hauj lwm ntawm cov txiv ntseej los yog ntsia hlau pas nrig, qhov chaw sib cuag ntawm lub pob thiab cov raceway yuav pib pib elastic deformation, tsim aa tsau preload.
Nta:
Lub preload yog tas li, tsis cuam tshuam los ntawm kev hloov pauv, thiab nruj.
Haum rau qis mus rau nruab nrab, siab precision (xws li CNC tshuab pub axis).
Precise lub preload npaum li cas tswj yuav tsum tau. Ntau dhau preload tuaj yeem ua rau muaj kev sib txhuam thiab kev ua neej luv.
Constant pressurisation (Lub caij nplooj ntoos hlav Preloading)
Nws ua haujlwm li cas: Nruab cov springs (xws li disk springs lossis yoj springs) sab hauv lossis sab nraum lub txiv ntoo kom muab cov khoom muaj zog ua ntej los ntawm lub caij nplooj ntoos hlav quab yuam.
Nta:
Ua ntej-tensioning quab yuam tau hloov kho nrog kev thauj khoom thiab tsim nyog rau kev kub ceev thiab qhov sib txawv ntawm kev thauj khoom (xws li cov pob qij txha neeg hlau).
Cov qauv complex yuav tsum tau soj ntsuam tas li ntawm lub caij nplooj ntoos hlav qaug zog.
Kev ua tau zoo ntawm lub caij nplooj ntoos hlav ncaj qha cuam tshuam rau kev ruaj ntseg ntawm lub zog pretensioning, yog li nws yog ib qho tsim nyog los xaiv cov khoom siv caij nplooj ntoos hlav nrog siab precision.
Muab ob npaug rau txiv ntoo Preloading
Nws ua haujlwm li cas: Lub siab yog siv rau ob lub pob thiab qhov kev sib tw los ntawm txoj kev sib tw ntawm qhov kev sib txheeb axial ntawm ob lub txiv ntoo (xws li kev hloov pauv gasket, xov xauv).
Nta:
Lub pretensioning quab yuam yog ib yam thiab haum rau hnyav load thiab siab rigidity yuav tsum (xws li pwm kaw mechanism ntawm txhaj tshuaj molding tshuab).
High precision machining yuav tsum tau ua kom lub coaxiality ntawm ob lub txiv ntseej, txwv tsis pub muaj kev vibrations.
Nws tau muab faib ua "rov qab-rau-rov qab" (nrog bidirectional axial loads) thiab "ntsej muag rau lub ntsej muag" (nrog unidirectional load) cov qauv.
Differential Preloading
Lub hauv paus ntsiab lus: Siv cov txiv ntseej sib txawv lossis cov ntsia hlau hla ntu, kev ua kom muaj zog yog tsim los ntawm qhov sib txawv ceev.
Nta:
Tsis tas yuav tsum muaj cov qauv siv tshuab ntxiv thiab tsim nyog rau kev tsim miniaturization (xws li, cov khoom siv kho qhov muag precision).
Qhov tseeb ntawm cov hlau lead ncaj qha cuam tshuam qhov loj ntawm preload thiab yuav tsum tau siab siab -precision machining.
Cov peev txheej ntawm daim ntawv thov yog nqaim, feem ntau yog siv rau cov kev cai tshwj xeeb customization.

Load yam ntxwv
Tsis tu ncua load: Preposition prepress los yog ob npaug rau txiv ntseej prepress raws li lawv muab siab prepress stability.
Variable load/impact load: Constant pressurization yog zoo dua vim nws cushions load fluctuations ntawm springs.
Heavy Solution: Muab ob npaug rau txiv ntoo pressurizing disperses siab kom tsis txhob muaj ib qho taw tes dhau.
Kev khiav hauj lwm ceev
Tsawg ceev (<1m/s): Positioning preloading meets requirements and costs less.
Kev kub ceev (Ntau dua los yog sib npaug li 1m / s): Qhov sib txawv los yog qhov sib txawv ua rau txo qis kev poob siab thiab tsim hluav taws xob.
Hypervelocity (>5m / s): kev sib xyaw ua ke ntawm huab cua bearings lossis magnetic levitation technology yuav tsum tau tsim thiab tsim tshwj xeeb uas yuav tsum tau ua rau preloading txoj kev.
Precision Requirements
Micron Precision (xws li cov khoom siv semiconductor): Qhov chaw prepress lossis ob lub txiv ntoo prepress yog qhov yuav tsum tau thiab tus nqi preloading yuav tsum raug rau 0.1 micron.
Sub-micron precision (xws li cov cuab yeej kho qhov muag): lub siab tsis tu ncua prepress + kub them nyiaj yuav tsum tau ua kom tsis txhob thermal deformation cuam tshuam rau prepress stability.
Environmental Adaptability
Kub kub / corrosive ib puag ncig: Ob chav txiv ntseej pressurisation (sealing qauv) yog nyiam kom tsis txhob lub caij nplooj ntoos hlav tsis ua hauj lwm.
Cleanroom scenarios: positioning preload los yog txawv preload yuav txo tau evaporation muaj kuab paug ntawm lubricating roj.
Lub tshuab nqus tsev ib puag ncig: Txhawm rau kom tsis txhob muaj roj emission lub caij nplooj ntoos hlav cov ntaub ntawv, airless tsim (xws li positioning prepressure) yuav tsum tau.
Lub neej thiab kev tu
Servicelife yuav tsum: positioning prepress los yog ntxaib txiv ntseej prepress, qauv yooj yim, tsis ua hauj lwm tus nqi.
Kho qhov yuav tsum tau ua: taag siab prepress tuaj yeem kho sai sai los ntawm kev hloov cov springs, haum rau ntawm -kev txij nkawm.