{"id":7917,"date":"2022-12-27T12:43:15","date_gmt":"2022-12-27T12:43:15","guid":{"rendered":"https:\/\/www.excavatorenginepart.com\/?p=7917"},"modified":"2022-12-27T12:55:05","modified_gmt":"2022-12-27T12:55:05","slug":"excavator-hydraulic-pump-failure-and-causes","status":"publish","type":"post","link":"https:\/\/www.excavatorenginepart.com\/sv\/fel-pa-hydraulisk-pump-for-gravmaskin-och-orsaker\/","title":{"rendered":"Fel p\u00e5 gr\u00e4vmaskinens hydraulpump och orsaker"},"content":{"rendered":"

Fel p\u00e5 gr\u00e4vmaskinens hydraulpump och orsaker<\/strong><\/p>\n

\"\"<\/p>\n

Hydraulisk pump<\/a> \u00e4r kraftk\u00e4llan i alla hydraulsystem. Det \u00e4r den energiomvandlingsanordning som omvandlar mekanisk energi till hydraulisk energi. Dess tekniska prestanda \u00e4r direkt relaterad till fordonets kraft och tillf\u00f6rlitlighet. Hydraulpumpen \u00e4r en komponent i hydraulsystemet med h\u00f6g felfrekvens, s\u00e5 vad \u00e4r den fr\u00e4msta orsaken till att hydraulpumpen g\u00e5r s\u00f6nder?<\/p>\n

    \n
  1. Slitage p\u00e5 pumpens inre delar: slitage p\u00e5 inre delar orsakar inre l\u00e4ckage. L\u00e4ckageomr\u00e5det mellan den flytande axelhylsan och v\u00e4xelns \u00e4ndyta \u00e4r stort, vilket \u00e4r huvuddelen av det inre l\u00e4ckaget. Avst\u00e5ndet mellan parningsytan \u00f6kar, volymeffektiviteten minskar p\u00e5 grund av slitage och inre l\u00e4ckage, och oljepumpens uteffekt \u00e4r mycket l\u00e4gre \u00e4n ing\u00e5ngseffekten.<\/li>\n
  2. \u00c5ldrande av pumpens t\u00e4tningselement: T\u00e4tningselementets \u00e5ldrande leder till att luft sugs in i oljepumpen fr\u00e5n mellanrummet mellan oljet\u00e4tningen och spindeltappen eller fr\u00e5n korsningen mellan oljeinloppsanslutningen och oljepumphuset, och in i oljetanken genom returr\u00f6ret, vilket ger ett stort antal bubblor i oljetanken. Oljan i tanken kommer att minska och lyftningen kommer att vara l\u00e5ngsam eller utebli. Oljet\u00e4tningen m\u00e5ste bytas ut f\u00f6r att \u00e5tg\u00e4rda problemet.<\/li>\n
  3. Pumpl\u00e4ckage: l\u00e4ckage \u00e4r direkt relaterat till hydraulpumpens utfl\u00f6de, vilket kommer att p\u00e5verka stabiliteten hos hydraulsystemets hastighet och uteffekt. Orsak: kolvpumpens mittfj\u00e4der \u00e4r skadad, s\u00e5 att cylinderblocket och f\u00f6rdelningen av oljekorset f\u00f6rlorar t\u00e4tningen; Skador p\u00e5 oljet\u00e4tning eller t\u00e4tningsring; D\u00e5lig t\u00e4tningsyta; Pumpdelar slits, spelrummet \u00e4r f\u00f6r stort.<\/li>\n
  4. Pumpoljetillf\u00f6rseln \u00e4r otillr\u00e4cklig eller inget oljetryck.<\/li>\n
  5. \u00d6verdrivet buller under pumpdrift<\/li>\n
  6. Fel orsak: allvarligt vakuumfenomen; Sugr\u00f6ret str\u00e4cker sig in i oljeytan \u00e4r grunt eller tankens oljeniv\u00e5 \u00e4r f\u00f6r l\u00e5g; Hydraulisk pumpaxel och motoraxel koaxialitetsskillnad; Kopplingsinstallationen \u00e4r d\u00e5lig, koaxialitet och slag; Oljesugfiltret \u00e4r delvis blockerat; Oljeviskositeten \u00e4r f\u00f6r h\u00f6g; Sugr\u00f6r eller pumpsugkavitet \u00e4r inte sl\u00e4t; Oljesug\u00e4nden \u00e4r inte strikt, det finns luft i, oljesugl\u00e4get \u00e4r f\u00f6r h\u00f6gt; Luft kommer in fr\u00e5n pumpaxelns oljet\u00e4tning; Pumplockskruv l\u00f6s; Pump och anslutningsaxel olika hj\u00e4rta eller l\u00f6s; Det finns bubblor i oljan; Sugfiltrets genomstr\u00f6mningskapacitet \u00e4r f\u00f6r liten; Rotationshastigheten \u00e4r f\u00f6r h\u00f6g; Pumpkroppens h\u00e5lighet blockeras; Kugghjulspumpens tandformsprecision \u00e4r inte h\u00f6g eller d\u00e5lig kontakt, pumpdelar skadade; V\u00e4xelpumpens axiella spelrum \u00e4r f\u00f6r litet, vinkelr\u00e4tten mellan det inre h\u00e5let och v\u00e4xelns \u00e4ndyta eller parallelliteten mellan de tv\u00e5 h\u00e5len p\u00e5 pumplocket \u00e4r blockerad; R\u00f6rledningsvibration.<\/li>\n
  7. Pumpen saknar tryck, pumpaxeln reverserar; pumpen absorberar inte olja.<\/li>\n
  8. Den hydraulpump<\/a> arbetar onormalt varmt<\/li>\n<\/ol>\n

    Orsak till fel: d\u00e5lig montering av pumpen; Kvaliteten p\u00e5 hydrauloljan \u00e4r d\u00e5lig och det inre slitaget intensifieras. Returr\u00f6ret \u00e4r inte sl\u00e4tt; P\u00e5verkan av milj\u00f6f\u00f6rh\u00e5llanden; Oljeviskositeten \u00e4r f\u00f6r h\u00f6g eller f\u00f6r l\u00e5g; Allvarlig friktion mellan sidoplatta och axelhylsa och v\u00e4xel\u00e4ndyta; Tankvolymen \u00e4r f\u00f6r liten, d\u00e5lig v\u00e4rmeavledning<\/p>\n

    \"\"<\/p>\n

    Mer Hydraulisk pump f\u00f6r gr\u00e4vmaskin Kontakta oss . www.excavatorenginepart.com<\/u><\/a>\u00a0<\/p>\n

     <\/p>\n\n\n

    \n \n
    \n \n
    \n
    \n \n\n
    <\/div>\n <\/div>\n
    \n \n\n
    <\/div>\n <\/div>\n
    \n \n\n
    <\/div>\n <\/div>\n
    \n \n\n
    <\/div>\n <\/div>\n
    \n \n\n
    <\/div>\n <\/div>\n <\/div>\n \n
    \n
    \n \n\n
    <\/div>\n <\/div>\n
    \n \n\n
    <\/div>\n <\/div>\n
    \n \n\n
    <\/div>\n <\/div>\n
    \n \n\n
    <\/div>\n <\/div>\n
    \n \n\n
    <\/div>\n <\/div>\n <\/div>\n<\/div>\n \n\n
    \n Rate this post<\/span>\n <\/div>\n <\/div>","protected":false},"excerpt":{"rendered":"

    Excavator Hydraulic Pump Failure and Causes Hydraulic pump is the power source of all hydraulic systems. It is the energy conversion device that converts mechanical energy into hydraulic energy. Its technical performance is directly related to the power and reliability of the vehicle. Hydraulic pump is a high failure rate component of hydraulic system, so […]<\/p>","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","om_disable_all_campaigns":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7917","post","type-post","status-publish","format-standard","hentry","category-tips"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/posts\/7917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/comments?post=7917"}],"version-history":[{"count":4,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/posts\/7917\/revisions"}],"predecessor-version":[{"id":7921,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/posts\/7917\/revisions\/7921"}],"wp:attachment":[{"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/media?parent=7917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/categories?post=7917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/tags?post=7917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}