Raws li cov ntaub ntawv muab, feem ntau tsis ua hauj lwm hom hydraulic thooj voos kheej kheej (HCs) muaj xws li sab hauv to, sab nraud to, foob hnav, thiab qhov "crawling" tshwm sim ntawm hydraulic actuators.
Cov hom tshwj xeeb ntawm cov kev ua tsis tiav no thiab lawv cov laj thawj yog raws li hauv qab no:
Internal Leakage (IL)Qhov no yog qhov feem ntau tsis ua haujlwm ntawm hydraulic lub tog raj kheej, xa mus rau qhov tsis xav tau ntawm cov kua nruab nrab ntawm cov chav sab hauv ntawm lub tog raj kheej.
Qhov laj thawj tseem ceeb:
foob tsis ua hauj lwm: Qhov no yog qhov laj thawj tshaj plaws. Cov ntsaws ruaj ruaj (xws li piston ntsaws ruaj ruaj, pas nrig ntsaws ruaj ruaj, thiab lwm yam) tuaj yeem hnav, tawv, tawg, lossis tsim qhov khoob vim siv ntev.
Cov khoom hnav: Kev tshem tawm ntau dhau los ntawm kev hnav ntawm lub piston thiab lub tog raj kheej chim.
Lub cev puas tsuaj: Kos thiab foob tsis ua hauj lwm raug lees paub tias yog qhov ua rau muaj kev tawm sab hauv.
Kev sib dhos thiab cov teeb meem siab: Kev sib dhos tsis zoo lossis kab rov tav lateral quab yuam ua rau axis distortion; los yog kev khiav hauj lwm siab tshaj qhov tsim txwv, accelerating foob degradation.
Cov teebmeem kub: Qhov kub thiab txias heev yuav ua rau cov ntsaws ruaj ruaj los yog decompose, thaum uas tsis tshua muaj kub ua rau lawv nkig.
External Leakage (EL)Qhov no yog hais txog cov kua dej tawm ntawm sab hauv ntawm lub tog raj kheej hydraulic mus rau qhov chaw sab nraud, uas txo cov kev ua haujlwm ntawm lub cev thiab ua rau muaj kev pheej hmoo ntawm kev nyab xeeb.
Qhov laj thawj tseem ceeb:
Cov ntsaws ruaj ruaj: Feem ntau ua rau muaj kev puas tsuaj los yog hnav rau cov ntsaws ruaj ruaj, piston ntsaws ruaj ruaj, lossis cov ntsaws ruaj ruaj.
Environmental contamination: Plua plav, khib nyiab, thiab lwm yam kab mob nkag mus rau hauv lub sealing mechanism impair sealing efficiency.
Lub cev puas tsuaj: Cov dents, khawb, los yog tawg ntawm sab nrauv ntawm lub tog raj kheej hydraulic cuam tshuam kev sib khi kev ncaj ncees.
Corrosion: Cov dej noo los yog kev sib cuag nrog cov khoom corrosive (piv txwv li, tshuaj, dej hiav txwv) ntawm lub tog raj kheej sab nrauv ua rau lub foob tsis ua hauj lwm lossis qhov txawv txav.
foob foobLub foob tsis ua hauj lwm yog thawj qhov ua rau hydraulic lub tog raj kheej to thiab manifests nyob rau hauv ntau yam ntaub ntawv:
Foob hnav: Ua kom nrawm los ntawm kev siv sijhawm ntev -, lubrication tsis txaus, kev sib dhos tsis raug, lossis cov khoom tsis zoo (xws li, plua plav) hauv cov kua dej hydraulic.
Foob hardening: Cov khoom siv ntuj tsim kev laus dhau lub sijhawm, lossis raug UV hluav taws xob ntev, tshuaj lom neeg, thiab kub kub, ua rau poob elasticity.
Scarring: Abrasive hais nyob rau hauv cov kua los yog txawv teb chaws teeb meem nkag mus rau hauv lub tog raj kheej khawb cov ntsaws ruaj ruaj thiab lawv mating nto.
Hydraulic Actuator CrawlingTus cwj pwm los ntawm qeeb, tsis sib xws ntawm lub piston lossis piston pas nrig yam tsis muaj cov lus txib sab nraud.
Qhov laj thawj tseem ceeb:
Cua nkag mus rau hauv cov kua: Qhov no yog qhov laj thawj tseem ceeb ntawm kev nkag mus. Huab cua tsub kom cov kua compressibility, ua rau kev vibration thiab tsis ruaj khov.
Hnav valve Cheebtsam: Hnav hauv qhov chaw valve ua rau muaj kev tshem tawm, ua rau siab - cov roj siab kom ntws mus rau qhov qis - siab sab.
Kev muab khoom tsis txaus: Cov kua dej tsis txaus lossis siab ua rau kev ua haujlwm tsis zoo.
viscosity txawv txav: Cov viscosity ntau dhau vim yog cov roj hydraulic txias, lossis qhov kub thiab txias ua rau kev ua haujlwm tsis zoo.
Hnav thiab Corrosion ntawm Lwm Cov Cheebtsam
Hnav ntawm lwm yam khoom: Cov khoom siv hlau xws li lub tog raj kheej lub tog raj kheej thiab piston pas nrig kuj muaj kev hnav vim kev sib txhuam, tshwj xeeb tshaj yog thaum cov khoom zoo sab nraud (xws li, xuab zeb thiab plua plav) nkag mus rau hauv lub cev, ua rau muaj kev puas tsuaj lossis qaug zog.
Corrosion: Cov dej noo nkag mus rau hauv lub tog raj kheej hydraulic vim yog sab nraud los yog lwm yam ua rau oxidizes hlau nto; qhov tshwm sim corrosive hais ntxiv ua rau kom hnav ntawm cov ntsaws ruaj ruaj thiab lub tog raj kheej chim.
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