Miniature Planetary Gearbox Inspection Txheej txheem

I. Kev Tshawb Fawb Kev Npaj thiab Kev Txhim Kho Kev Ntsuas

• Txhais cov khoom thiab kev ua haujlwm. Txheeb xyuas tus qauv, txo qhov sib piv, ntsuas torque, ntsuas qhov nrawm nrawm, kev teeb tsa thiab kev sib txuas. Sau cov ntaub ntawv kev saib xyuas keeb kwm thiab kev ua haujlwm los tsim cov qauv ntsuas qhov tseem ceeb thiab kev txiav txim siab rau qhov kev tshuaj xyuas no.

• Tsim ib txoj kev kuaj xyuas. Txiav txim siab cov khoom hauv online / offline, ntsuas cov ntsiab lus thiab cov qauv ntsuas, kaw qhov rais thiab ntsuas kev tiv thaiv kev nyab xeeb. Npaj cov twj paj nruag thiab cov cuab yeej los xyuas kom meej qhov rov ua tau thiab rov qab tau ntawm qhov kev xeem.

• Sensor thiab ntsuas taw tes npaj. Muab ib qho accelerometer ze ntawm lub nplhaib ruaj khov hauv lub gearbox kom tau txais meshing excitation; Muab qhov ceev/qhov tseem ceeb theem sensor rau ntawm lub hnub iav input ncej kom ua tau raws li qhov sib npaug -lub kaum sab xis sampling thiab trigger synchronization. Configure kub, suab nrov, thiab roj sampling interfaces raws li qhov tsim nyog.

• Ua raws li cov qauv thiab cov kev qhia tshwj xeeb. Kev ntsuam xyuas kev vibration yog hais txog ISO 10816 series, kev saib xyuas mob thiab cov txheej txheem kuaj mob xa mus rau ISO 13373 series, roj huv yog hais txog ISO 4406, thiab iav qhov tseeb yog hais txog ISO 1328 kom ntseeg tau qhov sib piv thiab ua raws li cov lus xaus.

 

II. Online Status Monitoring thiab Data Acquisition

• Steady-lub xeev tau txais kev ua haujlwm: Tom qab lub hom phiaj kev ua haujlwm ruaj khov, kev vibration, ceev / theem tseem ceeb, kub, thiab cov ntaub ntawv suab nrov tau txais synchronously. Kev vibration yog ua tiav los ntawm kev siv lub ntsuas accelerometer, thiab qhov ceev / theem tseem ceeb yog tiav los ntawm kev siv eddy tam sim no lossis photoelectric sensors, ua kom muaj ntau -channel synchronization.

• Sampling thiab qhov rais muaj nuj nqi: Tus nqi piv txwv yog teem raws li lub hom phiaj siab tshaj plaws, thiab Tukey qhov rais yog siv los suppress spectral to. Cov theem tseem ceeb triggering yog siv los ntu thiab qhov rai cov ntaub ntawv vibration los txhim kho qhov zoo ntawm kev txiav txim qhov piv txwv.

• Angular domain conversion thiab order ratio tracking: Lub sij hawm -domain signal converted into an angular domain signals with equal angular intervals using the key pulses, reduce the influence of speed fluctuations and highlighting the meshing frequency and its sidebands.

• Reference ncej timescale conversion: Interpolation thiab resampling yog ua raws li kev sib txuas ntawm kev sib raug zoo (xws li, siv ncej sib npaug angular timescale Tn1=i·Tn) los tsim kom muaj ib qho kev sib koom ua ke angular domain benchmark rau tom ntej synchronous nruab nrab thiab feature extraction.

• Kev ntsuas hauv online: Kub, kev khiav hauj lwm suab nrov, thiab lubricating roj qib / kub ntawm cov ntsiab lus tseem ceeb ntawm vaj tse raug kaw synchronously raws li lub hauv paus rau thawj anomaly tshuaj ntsuam thiab sib piv.

 

III. Laboratory thiab Offline Test

• Kev Ntsuam Xyuas Roj: Kev kuaj yog ua raws li cov lus qhia tshwj xeeb rau kev soj ntsuam spectral, ferrography, thiab physicochemical index tests los ntsuam xyuas abrasive particles thiab concentration tiam sis, roj deterioration thiab kis kab mob (piv txwv li, ISO 4406 cleanliness), thiab txiav txim siab hnav qhov chaw thiab qhov hnyav.

• Kev Tshuaj Ntsuam Xyuas Endoscopic: Tom qab kaw, lub inlet yog disassembled rau kev tshuaj xyuas. Ib qho khoom siv endoscope yog siv los saib xyuas lub hnub iav, lub ntiaj teb iav, iav nplhaib, thiab cov kabmob, tsom rau pitting, scuffing, tawg, yas deformation, thiab cov khoom txawv teb chaws nkag.

• Geometric Accuracy thiab Meshing Quality: Cov tsis tseem ceeb xws li cov hniav profile, lub suab, thiab radial runout raug tshuaj xyuas ntawm lub iav ntsuas qhov chaw lossis kev sib koom tes ntsuas lub tshuab kom paub tseeb qhov sib xws nrog cov qauv tsim thiab ntsuas meshing zoo thiab muaj peev xwm tawm ntawm - nruab nrab qhov txaus ntshai.

• Kev Ua Haujlwm Rov Ua Haujlwm: Tom qab kho lossis kho, tsis muaj- lub suab nrov, kev vibration, kub nce, thiab kis tau tus nqi rov qab los xyuas kom meej tias cov ntsuas tau rov qab mus rau lub Hoobkas lossis theem pib.

 

IV. Kev Ua Teeb Meem thiab Fault Diagnosis

• Preprocessing thiab Enhancement: Windowing, txhais tau tias tshem tawm, thiab bandpass filtering yog siv rau cov teeb liab vibration; Hilbert transform yog siv kom tau txais cov teeb liab analytic, thiab lub hnab ntawv demodulation yog ua los qhia txog qhov cuam tshuam; Thaum tsim nyog, qhov siab tshaj plaws correlation kurtosis deconvolution (MCKD) lossis qhov tsawg kawg nkaus entropy deconvolution (MED) yog siv los txhim kho cov kev cuam tshuam ib ntus thiab txo cov suab nrov.

• Adaptive Parameter Optimization: Sparrow search algorithm yog siv los ua kom zoo dua qhov tseem ceeb ntawm MCKD (xws li lub sij hawm T thiab hloov M) los txhim kho qhov kev kuaj pom ntawm qhov tsis zoo; sparse coding yog ntxiv rau kev tso tawm deconvolution kom txo cov suab nrov thiab txhim kho kev nyeem ntawv ntawm lub hnab ntawv spectrum.

• Angular Domain Synchronous Averaging thiab Spectral Analysis: Synchronous nruab nrab yog ua nyob rau hauv lub angular domain los suppress lub cuam tshuam ntawm random suab nrov thiab kis tau tus mob txoj kev hloov; lub hnab ntawv txiav txim spectrum yog xam thiab muab piv nrog theoretical txhaum tus yam ntxwv zaus kom ua tiav cov khoom -theem (xws li, hnub iav, ntiaj chaw iav, iav nplhaib) thiab hom txhaum (xws li, tawg, pitting) kev txheeb xyuas.

• Cov yam ntxwv txhaum cai thiab qhov chaw: Sib txuas cov kev vibration teb qhov sib txawv ntawm cov kab nrib pleb thiab pitting nyob rau hauv qhov yuam kev kis tau tus mob (TE) excitation tus yam ntxwv cheeb tsam, lub tshwj xeeb planetary iav qhov twg qhov txhaum yog nyob rau hauv txiav txim siv meshing theem cov ntaub ntawv, tsim ib tug kaw -loop soj ntsuam ntawm "nrhiav- qhov chaw" {2}.

 

V. Kev Txiav Txim, Tshaj Tawm, thiab Re-kev tshuaj xyuas

• Kev Ntsuam Xyuas Kev Ntsuas: Hla- siv tau qhov kev co (tus nqi zoo ntawm kev tshaj tawm / kev hloov pauv, kurtosis, lub hnab ntawv spectrum ncov tus nqi), qhov kub, suab nrov, roj, thiab cov txiaj ntsig geometric raug; cais cov xwm txheej vibration raws li cov qauv xws li ISO 10816-3 (xws li, zoo, tso cai, kev txhawj xeeb, txaus ntshai); txiav txim siab roj thiab huv si raws li ISO 4406 thiab abrasive sib txawv; piv cov kub thiab suab nrov nrog cov keeb kwm hauv paus.

• Cov lus pom zoo tuav: Raws li cov lus xaus, muab qhov kev txiav txim siab ntawm "kev ua haujlwm ib txwm muaj, txhim kho kev saib xyuas, kev npaj kho, lossis kev kaw tam sim rau kev kho," thiab qhia meej meej txog qhov tseem ceeb, cov neeg muaj lub luag haujlwm, thiab lub sijhawm txwv.

• Kev Tshaj Tawm Tshaj Tawm: Tsim ib daim ntawv qhia tus qauv uas muaj qhov ntsuas qhov taw qhia layout daim duab, sampling parameters, lub sij hawm-domain/frequency-domain/angular-domain spectra, characteristic zaus table, diagnostic reasoning, sus, and maintenance recommendations. Khaws thiab khaws daim ntawv tshaj tawm no los txhawb cov kev txheeb xyuas tom ntej thiab kev ntsuas kev ua neej.

• Re-kev tshuaj xyuas thiab Kev Saib Xyuas Kev Ua Si: Tsim kom muaj lub sijhawm rov ua dua- kev tshuaj xyuas thiab qhov pib- ua rau rov ua dua - kev tshuaj xyuas cov txheej txheem. Ua raws li kev taug qab rau cov ntsuas tseem ceeb (xws li kurtosis, lub zog tshwj xeeb sab nraud, thiab ferrographic concentration). Ua ke qhov no nrog rau lub platform saib xyuas kom ua tiav kev saib xyuas kev kwv yees thiab cov khoom seem kom zoo dua.