Nissan Qashqai Silent Blocks

Thaum lub sijhawm ua haujlwm ntawm lub tsheb, nws cov khoom siv thiab cov khoom siv tau raug rau kev vibration loads. Thaum lub sij hawm, mechanical vibrations ntawm qhov sib txawv ntawm kev siv zog ua rau kev puas tsuaj ntawm cov khoom siv ntawm lub tsheb.

Txhawm rau kom muaj kev vibrations thiab vibrations hauv kev tsim ntawm lub tsheb, cov ntsiab lus tshwj xeeb yog siv - cov blocks ntsiag to (cov roj hmab tsis sib cais thiab cov pob khawm hlau). Raws li ntau tus tswv tsheb, qhov ntsiag to blocks ntawm Nissan Qashqai tsheb yog qhov tsis muaj zog heev.

General ntaub ntawv

Lub kaw lus ntsiag to yog qhov tsis sib cais los tiv thaiv kev vibration uas muaj ob lub hlau bushings (sab hauv thiab sab nraud). Nruab nrab ntawm lawv tus kheej, cov bushings txuas nrog vulcanized txheej ntawm elastomer (rubber lossis polyurethane). Lub luag haujlwm tseem ceeb ntawm elastic insert yog nqus thiab dissipate perceived vibrations.

Vibration isolators yog siv nyob rau hauv pem hauv ntej thiab nram qab suspension caj npab. Lawv txuas nrog lub levers, shock absorbers, engine, gearbox, dav hlau propulsion.

Raws li lub tsheb siv, lub elastic ntxig ntawm lub bushings ntawm ntsiag to blocks maj mam pib tawg thiab tawg. Raws li hnav nce, lub elastomer absorbs tsawg thiab tsawg vibrations, uas tam sim ntawd cuam tshuam rau tus cwj pwm ntawm lub tshuab.

Nominal thiab lub neej tiag tiag ntawm kev co isolators

Lub nominal peev txheej ntawm ntsiag to blocks yog tsim rau 100 txhiab kilometers. Txawm li cas los xij, nyob rau hauv cov xwm txheej ntawm txoj kev hauv tsev, qhov kev pom zoo hloov lub sijhawm rau cov ntsiab lus no yog txhua 50 txhiab kilometers.

Cov kev soj ntsuam ua tau kuj qhia tau hais tias muaj peev txheej qis dua ntawm ib pawg ntawm cov kev sib cais ntawm kev vibrations nruab rau Nissan Qashqai tsheb. Yog li, lub neej kev pab cuam ntawm lub ntsiag to blocks ntawm pem hauv ntej levers txawv los ntawm tsuas yog 30 txhiab kilometers, thiab lub rear ntsiag to blocks ntawm pem hauv ntej subframe - los ntawm 40 txhiab kilometers.

Cov cim ntawm hnav lossis tsis ua haujlwm ntawm cov blocks uas ntsiag to

Qhov tseeb tias cov blocks ntsiag to ntawm Nissan Qashqai subframe lossis lawv lwm yam khoom siv yuav tsum tau ua tib zoo kuaj xyuas nrog kev hloov pauv tom ntej yog pov thawj los ntawm cov cim hauv qab no:

• txo tsheb maneuverability;
•  deterioration nyob rau hauv kev tswj;
• tsis sib xws braking;
• nce qhov ceev ntawm cov tshuaj tiv thaiv ntawm kev thauj mus rau lub kauj tsheb;
• rub lub tsheb mus rau sab thaum tsav tsheb ntawm kev kub ceev;
• jerks thiab vibrations ntawm lub cev thaum tsav tsheb;
• cov log tsheb tsis sib xws.

Tsis quav ntsej cov cim no yog qhov txaus ntshai heev. Lub deterioration ntawm kev khiav hauj lwm cov khoom ntawm ntsiag to blocks ua tsis tau tsuas yog rau ntxov ntxov hnav ntawm cov qauv thiab mechanisms ntawm lub tsheb, tab sis kuj mus rau ib tug txo nyob rau hauv nws controllability. Ua ke, cov kev hloov no tuaj yeem ua rau muaj xwm txheej ceev.

Ntxiv nrog rau kev nyab xeeb kev nyab xeeb rau tus neeg tsav tsheb, hnav bushings tuaj yeem ua rau kev puas tsuaj ntawm lwm qhov chaw thiab cov txheej txheem. Qhov no cuam tshuam nrog kev kho tus nqi kim, mus txog qhov hloov pauv ntawm cov haujlwm ua haujlwm tiav.

diagnostics

Koj tuaj yeem ntsuas nws tus kheej ntsuas qhov xwm txheej ntawm kev vibration isolators los ntawm kev ua qhov kev soj ntsuam pom ntawm lub chassis. Ua li no, lub tsheb yog ntsia rau hauv lub elevator los yog nyob rau sab saum toj ntawm lub gazebo. Tshem cov pob qij txha yog tias tsim nyog.

Tom ntej no, qhov xwm txheej ntawm qhov chaw ua haujlwm muaj feem cuam tshuam nrog cov blocks ntsiag to yog ntsuas:

1. viav caj npab ncua kev kawm - txhais caj npab pab tsis tau dab tsi, tab sis, tau dhia, rov qab mus rau lawv txoj haujlwm qub;
2. tshuaj xyuas lub tes tsho: nws yuav tsum tsis txhob tig txheeb ze rau cov protrusions;
3. tshuaj xyuas qhov kev vibration cais nws tus kheej rau cov kab nrib pleb thiab deformations;
4. xyuas yog tias muaj kev ua si hauv cov blocks uas ntsiag to - qhov loj dua, nws yuav tsum tau hloov sai dua.

Dab tsi yog qhov zoo dua: polyurethane lossis roj hmab khoom?

Nyob ntawm cov elastomer siv nruab nrab ntawm cov bushings, qhov sib txawv yog ua los ntawm polyurethane thiab roj hmab bushings.

Cov khoom siv polyurethane yog kim dua, tab sis muaj qhov zoo xws li:

• siab zog;
• Lub neej ua haujlwm ntev (kwv yees li 5 zaug;
•  tsis kam mus rau qhov kub thiab txias.

Cov khoom zoo li no feem ntau siv rau kev sib tw tsheb. Lawv yog qhov zoo tshaj plaws nyob rau hauv kev ua haujlwm hnyav, qhov kev ncua kev nruj thiab kev tuav lub tsheb yog qhov tseem ceeb.

Roj hmab vibration isolators tsis tshua muaj zog, tab sis pheej yig dua. Roj hmab, tsis zoo li polyurethane, yuav raug puas thiab hnav sai. Txawm li cas los xij, tib lub sijhawm, cov khoom siv roj hmab muab lub tsheb nrog kev caij tsheb zoo dua thiab ua haujlwm zoo dua.

Yog li ntawd, thaum xaiv Nissan Qashqai uas ntsiag to blocks, nws yog advisable kom tsom ntsoov rau cov kev khiav hauj lwm ntawm lub tsheb. Yog tias lawv xav tau lub zog siab tshaj plaws los ntawm lub tshuab, tom qab ntawd cov kev daws teeb meem yuav yog los yuav cov khoom siv polyurethane. Yog hais tias lub crossover yog ua nyob rau hauv ib tug du hom, roj hmab vibration isolators yog pom zoo.

Hloov cov blocks ntsiag to ntawm lub stretcher

Nyob rau Nissan Qashqai tsheb, muaj 4 anti-vibration ntsiab ntawm lub subframe. Txhawm rau kom tag nrho cov peev txheej, nws yog qhov tsim nyog los hloov tag nrho cov ntsiab lus ib zaug.

Pom zoo cov naj npawb ntawm cov khoom seem: 54466-JD000 - pem hauv ntej; 54467-BR00A - pem hauv ntej.

Kev hloov pauv yog ua raws li hauv qab no:

1. lub tsheb yog tsau rau ntawm lub nqa lossis ntawm tus saib;
2. muab lub kauj log rau hauv txoj haujlwm "ncaj";
3. tshem tawm cov ncej nruab nrab;
4. unscrew lub ntsia liaj qhov rooj ruaj ntseg kev twb kev txuas ntawm lub kauj mechanism thiab lub pob khawm;
5. tshem cov roj hmab ncoo ntawm lub bracket;
6. tshem tawm tus pin pivot;
7.  disassemble cov kev txhawb nqa thiab pob;
8. lub subframe yog disassembled;
9. siv ib tug drift los yog rauj kom tshem tawm cov hnav bushing.

Tom qab ntawd nruab ib qhov hloov tshiab thiab sib sau ua ke nyob rau hauv qhov kev txiav txim rov qab.

Hloov cov blocks uas ntsiag to ntawm sab caj npab ncua kev kawm ntawv

Txhawm rau hloov lub vibration isolators ntawm caj npab pem hauv ntej, nws yog ib qho tsim nyog yuav tsum tau nruab lub tshuab rau ntawm lub nqa lossis ntawm lub TV saib. Tshem lub log ntawm sab uas raug kho.

Tshaj:

1. unscrew lub pob txiv ntoo;
2. tso lub pob;
3. unscrew lub bolts ntawm vibration isolator (thawj pem hauv ntej, tom qab);
4. tshem tawm lub lever;
5. nias lub qub vibration isolator rau hauv xovxwm los yog ntaus nws nrog ib tug mallet;
6. ib tug tshiab vibration isolator yog nias rau hauv thiab lub rooj sib txoos yog assembled.