I. Cov Uas Tseem Ceeb ntawm Hydraulic Systems Siab Tsis Txaus Siab Volatility
1.Hydraulic Roj Teeb meem
Cov Khoom Siv Hluav Taws Xob: Cov khoom siv hlau, ya raws lossis oxidation cov khoom sib xyaw hauv cov roj hydraulic, yuav ua rau muaj kev hnav thiab tsim kua muag ntawm hydraulic twj tso kua mis, txo volumetric efficiency, ua rau cov zis tsis ruaj khov.
Cov pa phem kuj tuaj yeem cuam tshuam cov throttle orifices ntawm hydraulic li qub, xws li kev nyab xeeb thiab kev faib ua feem li qub, ua rau muaj kev hloov pauv siab.
Abnormal Oil Viscosity:
Cov viscosity ntau dhau (kub kub lossis roj aging) tuaj yeem ua rau cov dej ntws tawm, ua rau lub siab nce lossis hloov maj mam.
Tsis tshua muaj viscosity (siab kub los yog roj dilution) tuaj yeem txo cov roj lubrication, ua rau cov dej xau, thiab ua rau lub siab nyuaj.
2.Hydraulic Pump thiab Actuator Failures
Hydraulic Pump Hnav:
Kev hnav ntawm lub zog, pistons lossis vanes hauv lub twj tso kua mis ua rau muaj kev hloov pauv tsis ruaj khov thiab hloov pauv cov zis siab.
Lub twj tso kua mis lub tog raj kheej los yog qhov kawg npog foob tsis ua hauj lwm, yuav ua rau sab hauv to, txo qhov system siab.
Executive Lub Cev (Hydraulic Lub tog raj kheej / lub cev muaj zog) Teeb meem:
Hydraulic lub tog raj kheej foob lub nplhaib kev laus los yog kev puas tsuaj yuav ua rau lub siab siab chamber thiab tsis tshua muaj siab chambers kev sib txuas lus, tiv thaiv kom txhob muaj siab.
Internal to los yog ntsaws ntawm hydraulic lub cev muaj zog yuav cuam tshuam cov zis tso zis thiab tsis ncaj qha ua rau lub siab hloov pauv. Hydraulic Valve Failures
Kev nyab xeeb valve (s):
Relief valve caij nplooj ntoos hlav qaug zog los yog jamming, ua rau tsis ruaj tsis khov kev tswj, siab feem ntau fluctuate nyob ze tus nqi;
Core seal nto hnav ua rau sab hauv to, tiv thaiv kev saib xyuas siab.
Qhov sib npaug Valve / Servo Valve Failures:
Qhov sib npaug valve coil qhib Circuit Court lossis tswj cov teeb liab cuam tshuam ua rau misalignment ntawm cov tub ntxhais txoj hauj lwm thiab cov zis tsis ruaj khov;
Servo valve tawm tswv yim sensor tsis ua hauj lwm, kom tsis txhob kaw lub voj tswj siab, ua rau oscillations.
Directional Valve Sticking:
Vim muaj roj paug los yog tsis txaus lubrication, lub directional valve core jammed, ua rau txawv txav nyob rau hauv hydraulic kua ntws thiab siab.
4. Lub zog cia thiab cov teeb meem kav dej
Accumulator Failure:
Tsis ua hauj lwm ntawm Accumulator zais zis rupture los yog nitrogen to nqus siab pulsations exacerbates kev ntxhov siab hloov nyob rau hauv lub system.
Pipeline Design Defects:
Kev tsim cov kav dej tsis zoo (xws li kev khoov ntau dhau, txoj kab uas hla me dhau) tuaj yeem ua rau cov kua dej turbulence thiab nce siab poob;
Kev sib txuas ntawm cov kav dej tsis zoo lossis kev foob tsis ua haujlwm tuaj yeem ua rau cov dej xau thiab kev poob siab.
V. Hluav taws xob tswj qhov cuam tshuam
Sensor teeb liab txawv txav: lub siab sensors thaiv kab lossis calibration yuam kev yuav ua rau PLC kom tau txais cov cim tsis raug, ua rau tsis raug hydraulic twj tso kua mis hloov kho.
Kev cuam tshuam ntawm Kev Siv Hluav Taws Xob: Electromagnetic cuam tshuam (xws li los ntawm cov zaus hloov pauv lossis cov vuam siv hluav taws xob) tuaj yeem cuam tshuam rau lub valve tswj cov teeb liab, ua rau lub valve tseem ceeb vibration thiab siab hloov pauv.
II. Kev daws teeb meem
1. Hydraulic Oil Management
Hloov thiab lim dej ib ntus: Hloov cov kua dej tsis tu ncua raws li qhov xav tau los ntawm cov khoom siv tshwj xeeb thiab lim cov roj uas twb muaj lawm nrog cov lim dej kom tshem tawm cov kab mob.
viscosity Control: Hydraulic roj yog preheated rau qhov tsim nyog qhov kub thiab txias (xws li los ntawm lub rhaub los yog circulating twj tso kua mis);
Tsis txhob muaj qhov kub thiab txias ib puag ncig lossis lub sijhawm ntev lub sijhawm ua haujlwm siab, tiv thaiv cov roj viscosity poob.
2.Hydraulic Pump thiab Actuator Maintenance
Kev tshuaj xyuas thiab hloov lub twj tso kua mis: tsis tu ncua tshem tawm hydraulic twj tso kua mis, xyuas qhov hnav thiab tsim kua muag ntawm iav, piston lossis vane, hloov qhov hnav;
Hloov cov ntsaws ruaj ruaj los yog qhov kawg lub hau ntsaws ruaj ruaj kom tiv thaiv kev tawm sab hauv.
Actuator Kho: hloov hydraulic lub tog raj kheej piston seals foob, kho qhov sealing nto;
Ntxuav sab hauv ntawm hydraulic lub cev muaj zog thiab hloov cov khoom hnav kom ntseeg tau tias muaj kev sib hloov.
3.Hydraulic Valve Kho thiab hloov
Relief Valve Adjustment:
Ntxuav cov tub ntxhais ntawm lub pob nyem valve, hloov lub caij nplooj ntoos hlav, thiab kho lub siab mus rau tus nqi teev.
Txheeb xyuas qhov chaw sealing nto thiab kho lossis hloov lub cev valve.
Qhov Loj Valve / Servo Valve Calibration:
Calibration ntawm proportional valve coil kuj thiab tswj cov teeb liab siv cov khoom siv tshwj xeeb kuaj;
Hloov lub servo valve tawm tswv yim sensor kom kaw - voj tswj qhov tseeb.
Directional Valve Ntxuav:
Tshem tawm cov kev taw qhia valve, ntxuav cov tub ntxhais thiab lub cev, lubricate nrog hydraulic kua, ces reinstall.
4. Lub zog accumulator thiab Piping Optimization
Accumulator Inspection:
Tsis tu ncua xyuas lub zais zis kev ncaj ncees ntawm lub accumulator thiab ntxiv nitrogen ntawm lub siab ceev;
Hloov cov faulty accumulators kom ntseeg tau tias lawv nqus tau siab pulsations.
Kev txhim kho kav dej:
Ua kom zoo rau cov kav dej layout, txo cov yeeb nkab khoov thiab ua kom txoj kab uas hla ntawm cov yeeb nkab tseem ceeb.
Tighten cov kav dej sib txuas thiab hloov cov ntsaws ruaj ruaj kom tiv thaiv kom tsis txhob muaj dej.
III. Fais fab system tiv thaiv - jamming ntsuas
Sensor Maintenance:
Txheeb xyuas qhov ntsuas hluav taws xob txuas hluav taws xob thiab rov ntsuas qhov ntsuas qhov tseeb;
Hloov faulty sensors kom ruaj khov teeb liab kis tau tus mob. Kev rho tawm fais fab: Kev teeb tsa cov lim dej hauv qhov sib npaug ntawm lub valve tswj kom txo tau cov electromagnetic cuam tshuam; Kev sib cais ntawm lub zog ntawm cov khoom siv hydraulic los ntawm siab - cov khoom siv fais fab (xws li cov vuam) kom tsis txhob muaj qhov hloov pauv voltage.
V. Cov lus qhia txog kev tiv thaiv
Tsim kom muaj lub voj voog txij nkawm: xyuas cov kua dej hydraulic thiab qhov kub thiab txias txhua hnub los sau cov kev hloov pauv siab; ntxuav hydraulic li qub thiab lim txhua lub lim tiam los xyuas cov raj xa dej sib khi; Hloov cov ntxaij lim dej hydraulic txhua hli los ntsuas lub siab accumulator.
Kev cob qhia cov txheej txheem kev khiav hauj lwm: Qhia cov neeg tsav tsheb kom tsis txhob nquag pib hydraulic twj tso kua mis kom txo cov kev poob siab; tsis txhob kho hydraulic valve tsis nyob rau hauv siab siab los tiv thaiv kev oscillation system.