辅助(zhu)元件(jian)(jian)包(bao)括油(you)(you)(you)(you)箱、滤(lv)油(you)(you)(you)(you)器、冷却器、加热器、蓄能器、油(you)(you)(you)(you)管及管接(jie)头、密封圈、快换(huan)接(jie)头、高(gao)(gao)压(ya)(ya)(ya)(ya)(ya)球阀(fa)、胶管总成(cheng)、测压(ya)(ya)(ya)(ya)(ya)接(jie)头、压(ya)(ya)(ya)(ya)(ya)力表(biao)、油(you)(you)(you)(you)位计、油(you)(you)(you)(you)温计等(deng)。液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)是液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)系(xi)统中(zhong)传递能量的(de)工作(zuo)介质(zhi)，有各种矿物(wu)油(you)(you)(you)(you)、乳化液(ye)(ye)(ye)(ye)和(he)合成(cheng)型液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)等(deng)几(ji)大类(lei)。液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)系(xi)统由(you)信(xin)号控(kong)制(zhi)和(he)液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)动(dong)力两部(bu)(bu)分组成(cheng)，信(xin)号控(kong)制(zhi)部(bu)(bu)分用(yong)(yong)于(yu)驱动(dong)液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)动(dong)力部(bu)(bu)分中(zhong)的(de)控(kong)制(zhi)阀(fa)动(dong)作(zuo)。液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)动(dong)力部(bu)(bu)分采用(yong)(yong)回路图(tu)方式表(biao)示(shi)，以表(biao)明(ming)不同功能元件(jian)(jian)之间的(de)相互关系(xi)。液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)源(yuan)含(han)有液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)泵、电(dian)动(dong)机和(he)液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)辅助(zhu)元件(jian)(jian)；液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)控(kong)制(zhi)部(bu)(bu)分含(han)有各种控(kong)制(zhi)阀(fa)，用(yong)(yong)于(yu)控(kong)制(zhi)工作(zuo)油(you)(you)(you)(you)液(ye)(ye)(ye)(ye)的(de)流量、压(ya)(ya)(ya)(ya)(ya)力和(he)方向；执(zhi)行部(bu)(bu)分含(han)有液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)缸或液(ye)(ye)(ye)(ye)压(ya)(ya)(ya)(ya)(ya)马(ma)达，其(qi)可按实际(ji)要求来(lai)选择。粗糙(cao)度(du)(du)由(you)幢滚前(qian)Ra3.2～6.3um减小为Ra0.4～0.8&um，孔(kong)的(de)表(biao)面硬度(du)(du)提高(gao)(gao)约30%。金(jin)华油(you)(you)(you)(you)缸价钱

原因(yin)：液压(ya)油(you)(you)(you)中总含有一定量的(de)空气(qi)(qi)，通常可(ke)(ke)溶解于(yu)油(you)(you)(you)中，也可(ke)(ke)以(yi)气(qi)(qi)泡(pao)(pao)的(de)形式混合于(yu)油(you)(you)(you)中。当压(ya)力(li)(li)低于(yu)空气(qi)(qi)分(fen)离压(ya)力(li)(li)时(shi)(shi)，溶解于(yu)油(you)(you)(you)中的(de)空气(qi)(qi)分(fen)离出来(lai)，形成气(qi)(qi)泡(pao)(pao)；当压(ya)力(li)(li)降至油(you)(you)(you)液的(de)饱和(he)蒸气(qi)(qi)压(ya)力(li)(li)以(yi)下时(shi)(shi)，油(you)(you)(you)液会(hui)沸腾(teng)而(er)产生(sheng)(sheng)(sheng)大量气(qi)(qi)泡(pao)(pao)。这些气(qi)(qi)泡(pao)(pao)混杂(za)于(yu)油(you)(you)(you)液中形成不连续状态，这种现象称为空穴(xue)现象。部位：吸(xi)油(you)(you)(you)口及吸(xi)油(you)(you)(you)管(guan)中低于(yu)大气(qi)(qi)压(ya)处，易产生(sheng)(sheng)(sheng)气(qi)(qi)穴(xue)；油(you)(you)(you)液流(liu)经(jing)节流(liu)口等狭小(xiao)缝隙(xi)处时(shi)(shi)，由于(yu)速度的(de)增加，使压(ya)力(li)(li)下降，也会(hui)产生(sheng)(sheng)(sheng)气(qi)(qi)穴(xue)。危害(hai)：气(qi)(qi)泡(pao)(pao)随油(you)(you)(you)液运动到高(gao)压(ya)区，在高(gao)压(ya)作(zuo)用(yong)下迅速破裂，造成体积突(tu)然(ran)减小(xiao)、周围高(gao)压(ya)油(you)(you)(you)高(gao)速流(liu)过来(lai)补充(chong)，引(yin)起局部瞬间冲击(ji)，压(ya)力(li)(li)和(he)温度急剧(ju)升(sheng)高(gao)并产生(sheng)(sheng)(sheng)强烈的(de)噪(zao)声和(he)振动。宁夏(xia)油(you)(you)(you)缸生(sheng)(sheng)(sheng)产企业按压(ya)力(li)(li)等级可(ke)(ke)分(fen)为16Mpa、25Mpa、31.5Mpa等。

传统(tong)的修(xiu)(xiu)复(fu)方法是(shi)将损坏的部(bu)(bu)件进行拆卸后(hou)的外协修(xiu)(xiu)复(fu)，或(huo)(huo)是(shi)进行刷镀或(huo)(huo)是(shi)进行表(biao)面(mian)(mian)的整体(ti)刮(gua)研，修(xiu)(xiu)复(fu)周(zhou)期液(ye)压缸(gang)缸(gang)体(ti)划(hua)(hua)伤(shang)修(xiu)(xiu)复(fu)长，修(xiu)(xiu)复(fu)费用(yong)高。修(xiu)(xiu)复(fu)工艺：1、用(yong)氧-乙(yi)(yi)炔(gui)火焰烤(kao)划(hua)(hua)伤(shang)部(bu)(bu)位(wei)（掌握温度，避(bi)免表(biao)面(mian)(mian)退火），将常年渗金属表(biao)面(mian)(mian)的油(you)烤(kao)出(chu)来，烤(kao)到(dao)没(mei)有(you)火花四溅。2、将划(hua)(hua)伤(shang)部(bu)(bu)位(wei)用(yong)角磨(mo)(mo)机(ji)表(biao)面(mian)(mian)处(chu)理，打磨(mo)(mo)深(shen)度1毫米以上，并(bing)沿(yan)导(dao)轨打磨(mo)(mo)出(chu)沟(gou)槽， 是(shi)燕尾槽。划(hua)(hua)伤(shang)两端钻孔加深(shen)，改变(bian)受力情(qing)况。3、用(yong)脱脂棉蘸 或(huo)(huo)无水乙(yi)(yi)醇(chun)将表(biao)面(mian)(mian)清(qing)洗干(gan)净。大象(xiang)机(ji)械(xie)制造油(you)缸(gang)厂(chang)家(jia)直销

DINISO1219-2标(biao)准定义了元件的编(bian)号(hao)(hao)组成(cheng)，其包括下面(mian)四个(ge)部分(fen)：设(she)备编(bian)号(hao)(hao)、回路(lu)编(bian)号(hao)(hao)、元件标(biao)识(shi)符和元件编(bian)号(hao)(hao)。如果整个(ge)系(xi)(xi)统(tong) 有(you)一(yi)种(zhong)(zhong)设(she)备，则(ze)可省略设(she)备编(bian)号(hao)(hao)。实际中(zhong)，另一(yi)种(zhong)(zhong)编(bian)号(hao)(hao)方式(shi)就(jiu)是对(dui)液压(ya)系(xi)(xi)统(tong)中(zhong)所(suo)有(you)元件进(jin)行(xing)连(lian)续(xu)编(bian)号(hao)(hao)，此时，元件编(bian)号(hao)(hao)应(ying)该与(yu)元件列(lie)表(biao)中(zhong)编(bian)号(hao)(hao)相(xiang)一(yi)致。这(zhei)种(zhong)(zhong)方法特别(bie)适用于复杂(za)液压(ya)控制系(xi)(xi)统(tong)，每个(ge)控制回路(lu)都与(yu)其系(xi)(xi)统(tong)编(bian)号(hao)(hao)相(xiang)对(dui)应(ying)。压(ya)力(li)损(sun)(sun)失由于液体(ti)具有(you)黏(nian)性(xing)，在管路(lu)中(zhong)流动时又不(bu)可避(bi)免地(di)存在着摩(mo)擦力(li)，所(suo)以液体(ti)在流动过程中(zhong)必然要(yao)损(sun)(sun)耗一(yi)部分(fen)能量。这(zhei)部分(fen)能量损(sun)(sun)耗主要(yao)表(biao)现为压(ya)力(li)损(sun)(sun)失。通过滚压(ya)成(cheng)型，滚压(ya)表(biao)面(mian)形(xing)成(cheng)一(yi)层冷作硬化(hua)层，减少了磨(mo)削副接(jie)触表(biao)面(mian)的弹性(xing)和塑性(xing)变形(xing)。

此时(shi)应检(jian)查油液(ye)(ye)的(de)污染(ran)情(qing)况；检(jian)查脏物(wu)或胶质沉淀物(wu)是(shi)否卡(ka)住阀芯或堵(du)塞阀孔(kong)；阀芯卡(ka)住或阀孔(kong)堵(du)塞。当(dang)流(liu)量阀或方向阀阀芯卡(ka)住或阀孔(kong)堵(du)塞时(shi)，液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)缸(gang)易发生误(wu)动(dong)(dong)作(zuo)(zuo)或动(dong)(dong)作(zuo)(zuo)失灵。由于(yu)液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)缸(gang)出(chu)现故(gu)障(zhang)而导致设备停(ting)机(ji)的(de)现象屡见(jian)不鲜，因此，应重(zhong)(zhong)(zhong)视液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)缸(gang)的(de)故(gu)障(zhang)诊断与使用维护工(gong)作(zuo)(zuo)。其故(gu)障(zhang)可(ke)基本(ben)归纳为液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)缸(gang)误(wu)动(dong)(dong)作(zuo)(zuo)、无力推(tui)动(dong)(dong)负(fu)载以及活塞滑移或爬行(xing)等。液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)缸(gang)是(shi)液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)系统中将液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)能(neng)转(zhuan)换(huan)为机(ji)械能(neng)的(de)执行(xing)元件。长时(shi)间的(de)运动(dong)(dong)摩擦也不会损伤密(mi)封(feng)圈或密(mi)封(feng)件，这(zhei)点在(zai)(zai)液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)行(xing)业特别(bie)重(zhong)(zhong)(zhong)要(yao)(yao)。长时(shi)间的(de)运动(dong)(dong)摩擦也不会损伤密(mi)封(feng)圈或密(mi)封(feng)件，这(zhei)点在(zai)(zai)液(ye)(ye)压(ya)(ya)(ya)(ya)(ya)行(xing)业特别(bie)重(zhong)(zhong)(zhong)要(yao)(yao)。金(jin)华油缸(gang)价钱

这时应检查活(huo)(huo)塞及活(huo)(huo)塞杆(gan)密(mi)封是否(fou)太紧(jin)，是否(fou)进(jin)入脏物(wu)及胶质沉淀物(wu)。金华油缸价(jia)钱

5、检查所(suo)有管路尺寸是(shi)否合适，连接是(shi)否正确。要(yao)是(shi)系(xi)(xi)统(tong)中使用(yong)到电液伺(si)服阀，我不妨多(duo)说两句，伺(si)服阀得冲(chong)(chong)洗(xi)(xi)板要(yao)使油(you)液能从(cong)供(gong)油(you)管路流向集流器，并(bing)直接返回油(you)箱，这(zhei)样可(ke)以(yi)让(rang)油(you)液反复(fu)流通，以(yi)冲(chong)(chong)洗(xi)(xi)系(xi)(xi)统(tong)，让(rang)油(you)滤滤掉固体颗粒，冲(chong)(chong)洗(xi)(xi)过程(cheng)中，没隔1～2小时要(yao)检查一(yi)下(xia)油(you)滤，以(yi)防油(you)滤被污(wu)染物堵(du)(du)塞，此时旁(pang)路不要(yao)打开，若是(shi)发现油(you)滤开始(shi)堵(du)(du)塞就马上换油(you)滤。冲(chong)(chong)洗(xi)(xi)的(de)(de)周期由(you)系(xi)(xi)统(tong)的(de)(de)构(gou)造和系(xi)(xi)统(tong)污(wu)染程(cheng)度(du)来决定，若过滤介质的(de)(de)试样没有或是(shi)很(hen)少外来污(wu)染物，则装上新的(de)(de)油(you)滤，卸下(xia)冲(chong)(chong)洗(xi)(xi)板，装上阀工作有计划的(de)(de)维(wei)护：建立系(xi)(xi)统(tong)定期维(wei)护制度(du)，对液压系(xi)(xi)统(tong)较好(hao)的(de)(de)维(wei)护保养建议(yi)如下(xia)：金华油(you)缸价钱

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