Thaum siv lub tog raj kheej hydraulic, qee zaum, nws tau txiav txim siab kom meej tias lub piston pas nrig yog qhov zoo thaum sib sau ua ke, thiab tsis muaj kab nyob ntawm qhov chaw. Tab sis tom qab siv nws ib pliag, kuv pom tias tus pas nrig piston yog oily. Qhov tseeb, roj- nqa yog qhov tshwm sim uas feem ntau ntsib thaum siv, vim thaum siv, yuav muaj kev sib tsoo, uas ua rau muaj qhov tshwm sim ntawm cov roj- nqa. Cov tsos ntawm nws cov roj ntau lawm yuav cuam tshuam rau kev ua haujlwm rau qee qhov, yog li peb yuav daws qhov teeb meem ntawm cov roj ntau lawm li cas?
Kev soj ntsuam ntawm cov laj thawj rau cov roj tawm:
1. Deformation ntawm piston pas nrig;
2. Sab hauv daim di ncauj ntawm lub nplhaib sealing thiab nto ntawm tus pas nrig piston tsis haum;
3. Cov txheej txheej saum npoo yog puas thaum siv, ua rau qhov tsis sib xws ntawm qhov chaw;
4. Muaj qhov khawb ntawm qhov chaw los yog hauv cov txheej txheem ntawm kev siv, ua rau muaj kev sib tsoo lossis tawg;
5. Qhov luaj li cas ntawm lub tog raj kheej taub hau los yog cov lus qhia sealing zawj nyob rau hauv lub piston pas nrig tsis tau raws li qhov yuav tsum tau, yog li tus compression npaum li cas yuav tsum tau nce. Yog hais tias tus nqi ntawm compression tsis nce mus, tus nqi ntawm compression yuav maj mam ua me, ua rau cov roj tawm ntawm lub piston pas nrig.
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