Lienjineri tse ngata tsa sejoale-joale li ntse li sebelisa merero ea ho tsamaisa khase ka li-valve tse sebelisang li-rocker arms.Matsoho a rocker a kenngoa karolong e khethehileng - axis.Bala ka hore na rocker arm axis ke eng, hore na e sebetsa joang le hore na e sebetsa joang, hammoho le khetho ea eona le sebaka sa eona sengolong.
Sebaka sa letsoho la rocker ke eng?
The rocker arm axis ke karolo ea mokhoa oa kabo ea khase ea lienjineri tse tukang tse ka hare tse nang le li-valve tse holimo;Molamu o sekoti o tšoereng matsoho a rocker a li-valve le likarolo tse amanang le mochini oa valve.
The rocker arm axis e etsa mesebetsi e mengata:
• Maemo a nepahetseng a matsoho a rocker ha a bapisoa le lipompo tsa camshaft le li-valve;
• Ho tlotsa libaka tse khohlano tsa li-rocker arms le li-bearings tsa tsona, phepelo ea oli ho likarolo tse ling tsa mochini oa ho tsamaisa khase;
• Ho boloka lihlomo tsa rocker, liliba tsa tsona le likarolo tse ling (axle e sebetsa e le ntho e tsamaisang matla a matla).
Ke hore, rocker arm axis ke eona ntho e ka sehloohong e jarang moroalo bakeng sa likarolo tse ngata tsa nako (matsoho a rocker, liliba le tse ling tse ling) le e 'ngoe ea mela e meholo ea oli ea sistimi e kopaneng ea enjene ea lubrication.Karolo ena e sebelisoa feela lienjineng tsa li-valve tse holimo tse nang le koloi ea nako ea mefuta e fapaneng:
- Ka camshaft e tlase, e nang le ts'ebetso ea li-valve ka li-tappets, lithupa le matsoho a rocker;
- Ka camshaft e ka holimo (li-shafts tse tloaelehileng kapa tse arohaneng bakeng sa mola o mong le o mong oa li-valve), ka ts'ebetso ea li-valve ka matsoho a rocker;
- Ka camshaft e holimo, e nang le li-valve tse khannoang ka lever pusher.
Lienjineng tsa sejoale-joale tse nang le li-valve drive tse tsoang ho camshaft cams, matsoho a rocker le likarolo tse amanang le tsona ha li eo.
The rocker arm axis e phetha karolo ea bohlokoa ts'ebetsong ea enjene, ho netefatsa ts'ebetso e tloaelehileng ea mochine oa eona oa nako ea valve.Axle e fosahetseng kapa e nang le phoso e hloka ho nkeloa sebaka kapele kamoo ho ka khonehang, 'me e le hore u etse khetho e nepahetseng ea karolo ena, u lokela ho utloisisa mefuta e teng ea li-axle, liqapi le likarolo tsa tsona.
Ka kopo elelloa: kajeno ho lingoliloeng le likhoebong tsa khoebo, lentsoe "rocker arm axis" le sebelisoa ka meelelo e 'meli - e le karolo e arohaneng, tube e se nang letho moo matsoho a rocker, liliba le likarolo tse ling li ts'oaroang ho eona, hape e le axle e felletseng. litšehetso tse seng li kentsoe, matsoho a rocker le liliba.Nakong e tlang, re tla bua ka lilepe tsa matsoho a rocker ka maikutlo ana ka bobeli.
Mefuta, moralo le tlhophiso ea lilepe tsa rocker arm
Li-axles li arotsoe ka mefuta e 'maloa ho latela palo ea matsoho a rocker a kentsoeng le ho latela likarolo tse ling tsa moralo.
Ho ea ka palo ea libetsa tsa rocker tse kentsoeng, li-axle ke:
• Solo;
• Sehlopha.
Axle ke karolo e nang le letsoho le le leng feela la rocker le li-fasteners (washer kapa nut).Li-axle tsa letsoho tsa rocker ka bomong li sebelisoa, joalo ka molao, lienjineng tse nang le li-valve tse peli ka silindara, kahoo palo ea li-axle ho tsona e kholo habeli ho feta li-cylinders.Axis e joalo e etsoa ka nako e le 'ngoe le rack, kahoo e behiloe holim'a hlooho ea cylinder ntle le likarolo tse eketsehileng, mohaho oohle o bonolo ebile o bobebe.Leha ho le joalo, axis ka bomong ea matsoho a rocker e ke ke ea lokisoa ha ho e-na le ho se sebetse, e mpa e fetola kopano.
Axle e nang le pokello ea libetsa tsa rocker
Axle ea sehlopha ke karolo e jereng matsoho a 'maloa a rocker le likarolo tse amanang le tsona (li-springs, thrust washers, pins).Ho tloha ho 2 ho isa ho 12 matsoho a rocker a ka behoa holim'a axle e le 'ngoe, ho itšetlehile ka moralo oa enjene le palo ea li-cylinders.Kahoo, ho lienjine tse nang le lihlooho tse arohaneng tsa li-cylinder, li-axle tse nang le matsoho a mabeli a rocker li sebelisoa bakeng sa silinda e 'ngoe le e' ngoe, ho lienjine tse ling tse 6 tse nang le lihlooho tse arohaneng tsa li-cylinder tse tharo, li-axle tse peli tse nang le matsoho a tšeletseng a rocker li sebelisoa moleng oa 4, 5 le. Li-enjini tse 6-cylinder, li-axle tse nang le 8, 10 le 12 lihlomo tsa rocker, ka ho latellana, joalo-joalo Palo ea lihlomo tsa sehlopha sa rocker ka enjene e le 'ngoe kapa V e nang le hlooho e le' ngoe ea cylinder bakeng sa palo ea li-cylinders e ka ba 1, 2. kapa 4. Li-motor tse nang le li-valve tse peli ka cylinder li sebelisa li-axle tse peli kapa tse peli (tabeng ea hlooho ea cylinder e arohaneng), li-motor tse nang le li-valve tse 'nè ka cylinder li sebelisa li-axle tse peli kapa tse' nè.Palo ea li-axle lienjineng tse nang le lihlooho tsa li-cylinder ka bomong li lumellana le palo ea lihlooho.
Lilepe tsa sehlopha tsa matsoho a rocker li bonolo.Li thehiloe holim'a axis ka boeona - shaft ea tšepe e nang le mocha oa longitudinal le likoti tse ngata tse pota-potileng ho latela palo ea matsoho a rocker a kentsoeng.Likoti tse fetelletseng tse fetelletseng hangata li sebelisoa ho lokisa axle ka har'a liraka tse nang le li-cotter pins le thrust washers.Kaha axle e tlas'a meroalo e phahameng, e entsoe ka limaraka tse khethehileng tsa tšepe, 'me holim'a eona ho phaella ho phekolo ea lik'hemik'hale le mocheso (carburization, harding) ho eketsa matla, ho hanyetsa ho apara le litšusumetso tse ling tse mpe.
Matsoho a rocker a kenngoa holim'a axle ka lihlahla (li-bearings tse entsoeng ka boronse kapa lisebelisoa tse ling), li-grooves le likanale li etsoa ka har'a lihlahla bakeng sa ho fana ka oli ho tloha ho li-axle ho ea matsohong a rocker.Lihlopha tse peli tsa matsoho a rocker li behiloe ka har'a liliba tsa spacer cylindrical tse roaloang holim'a axle.Axle e behiloe holim'a hlooho ea silinda e sebelisa letoto la li-racks - tse peli tse feteletseng le tse 'maloa tse ka sehloohong (bohareng) tse pakeng tsa matsoho a rocker.Axle e ka kenngoa ka li-racks ka bolokolohi kapa ea hatelloa ho tsona.Li-axle tsa li-rocker arm tsa li-valve tse 'nè li ka kenngoa holim'a li-ttruts tse peli, tse netefatsang boemo bo nepahetseng ba likarolo tsa nako.Likarolong tse ka tlase tsa li-racks ho na le lithakhisa tsa centering le masoba bakeng sa li-studs / bolts bakeng sa ho tiisa.
Phepelo ea oli ho axle ea rocker arm e ka etsoa ka litsela tse peli:
• Ka e 'ngoe ea liraka;
• Ka tube e arohaneng ea phepelo.
Boemong ba pele, e 'ngoe ea li-struts tse feteletseng kapa tse bohareng li na le mocha oo oli e phallang ho oona ho tloha mocha oa hlooho ea silinda ho ea ho axis ea letsoho la rocker.Tabeng ea bobeli, tube ea tšepe e kopantsoeng le mocha oa oli ka hloohong ea cylinder e fanoa ho tloha pheletsong e 'ngoe ho ea ho axis ea matsoho a rocker.
Ka kakaretso, li-axle tsa matsoho a rocker tsa mefuta eohle li na le moralo o bonolo, ka hona li ka tšeptjoa ebile li tšoarella, le hoja likarolo tsena li ka hlōleha - tabeng ena, li hloka ho lokisoa kapa ho nkeloa sebaka.
Moralo oa "rocker arm axis" e nang le phepelo ea oli ka pilara e bohareng
Litaba tsa khetho, tokiso le phetolo ea lilepe tsa rocker arm
Joalo ka likarolo tse ling tse ngata, lilepe tsa rocker arm hangata li etselitsoe mofuta o itseng oa mofuta kapa esita le phetoho ea enjene, e behang lithibelo khethong ea likarolo tsena.Ka hona, bakeng sa ho nkela sebaka, hoa hlokahala ho khetha feela li-axles tse khothalletsoang ke moetsi oa enjene ka boeona - kahoo ho na le litiiso tsa hore likarolo tse ncha li tla oela sebakeng le ho sebetsa ka tloaelo.
Ka thoko, hoa lokela ho hlokomeloa hore esita le liphetoho tse fapaneng tsa enjene e le 'ngoe hangata li na le lilepe tsa rocker arm tse fapaneng ka moralo le litšobotsi.Ka mohlala, lisebelisoa tse ling tsa motlakase tsa malapeng bakeng sa peterole ea lihlahisoa tse fapaneng li na le lihlooho tsa li-cylinder tse sa tšoaneng ka moralo le litekanyo, ka hona, lilepe tsa bona tsa letsoho la rocker li ka 'na tsa fapana (tse nang le li-racks tsa bophahamo bo fapaneng, matsoho a rocker, joalo-joalo).Sena se lokela ho nahanoa ha u reka likarolo tse setseng le ho lokisa.
The rocker arm axle e tlameha ho qhaqha le ho kenngoa feela ho latela litaelo tsa ho lokisa le ho lokisa koloi.'Nete ke hore bakeng sa ts'ebetso e tloaelehileng ea axle le thibelo ea ho senyeha, li-fasteners tsa eona (liboutu kapa linate tsa stud) li tlameha ho tiisoa ka tatellano e nepahetseng le ka boiteko bo itseng.'Me ka mor'a ho kenya, ho bohlokoa ho lokisa lekhalo la mocheso pakeng tsa matsoho le li-valve tsa rocker.
Nakong ea ts'ebetso ea koloi, mochini oa letsoho oa rocker ha o hloke tlhokomelo e khethehileng, ho hlokahala feela ho latela litaelo tsa ho hlahloba ho kena-kenana ha li-bolts / linate le ho hlahloba likarolo tsa axle bakeng sa botšepehi ba tsona.Tlhokomelo ea kamehla le ts'ebetso e nepahetseng ea koloi e tiisa ts'ebetso e tšepahalang ea rocker arm axle le nako ka kakaretso ka mekhoa eohle ea ts'ebetso ea enjine.
Nako ea poso: Aug-05-2023