qingsongjiejueyouyajibubaoyawentidechanpinmiaoshuxinxikenengbugouxiangxihequanmian。ruguoninxuyaogengduoguanyuqingsongjiejueyouyajibubaoyawentidexinxihuoxunwenxiangguanxinxi，qingsuishilianxiwo！

保壓期間油壓機液壓缸工作壓力嚴重降低的原因是什麼？分析了油壓機在運行過程中經常出現的一些問題：

一
、液壓缸內外泄漏，造成不保壓。

液壓缸兩腔之間內部泄漏的關鍵在於活塞密封裝置的可靠性和間距密封性，提高了液壓缸孔、活塞和活塞杆的生產製造精度和相互配合精度，有利於減少內外泄漏造成的常見故障。

2
、油壓方向控製電路的主要常見故障及原因是：電磁鐵吸附不足，不能促進閥芯的運動。DC電(dian)磁(ci)鐵(tie)的(de)剩(sheng)磁(ci)性(xing)很(hen)大(da)，使(shi)閥(fa)芯(xin)不(bu)複(fu)位(wei)。對(dui)中(zhong)彈(dan)簧(huang)的(de)中(zhong)軸(zhou)彎(wan)曲(qu)
，使(shi)閥(fa)芯(xin)卡(ka)在(zai)閥(fa)內(nei)
，閥(fa)芯(xin)被(bei)拉(la)毛(mao)

，閥(fa)體(ti)卡(ka)住(zhu)。液(ye)壓(ya)油(you)汙(wu)染(ran)嚴(yan)重(zhong)，滑(hua)動(dong)間(jian)距(ju)堵(du)塞(sai)，導(dao)致(zhi)閥(fa)芯(xin)卡(ka)住(zhu)。由(you)於(yu)閥(fa)芯(xin)和(he)閥(fa)體(ti)生(sheng)產(chan)加(jia)工(gong)精(jing)度(du)差(cha)，導(dao)致(zhi)徑(jing)向(xiang)卡(ka)緊(jin)力(li)和(he)閥(fa)芯(xin)卡(ka)住(zhu)。

3、youyajigekongzhifadexieloushiyeyahuanxiangfayuyouyajiyeyagangmiqiexiangguandexielouliang，shifoubaoyadezhongyaoyuanyin。gekongzhifadexieloushiyeyahuanxiangfayuyouyajiyeyagangmiqiexiangguandexielouliang
，shishifoubaoyadezhongyaoyuanyin。youyajigekongzhifadexieloushiyeyahuanxiangfayuyouyajiyeyagangmiqiexiangguandexielouliang
，shiyeyagangbaoyagongzuoyaliwufaweichibinghuanmanjiangdidezhongyaoyuanyin。bubaoyadezhuyaoyuanyinshiyeyaganghekongzhifadexielou。

第(di)四(si)
，不(bu)保(bao)壓(ya)常(chang)見(jian)故(gu)障(zhang)的(de)主(zhu)要(yao)措(cuo)施(shi)和(he)方(fang)法(fa)是(shi)盡(jin)量(liang)避(bi)免(mian)泄(xie)漏(lou)。在(zai)必(bi)要(yao)的(de)保(bao)壓(ya)時(shi)間(jian)內(nei)，液(ye)壓(ya)缸(gang)的(de)保(bao)壓(ya)工(gong)作(zuo)壓(ya)力(li)無(wu)法(fa)維(wei)持(chi)並(bing)緩(huan)慢(man)降(jiang)低(di)。不(bu)保(bao)壓(ya)的(de)主(zhu)要(yao)原(yuan)因(yin)是(shi)液(ye)壓(ya)缸(gang)和(he)控(kong)製(zhi)閥(fa)的(de)泄(xie)漏(lou)。處(chu)理(li)不(bu)保(bao)壓(ya)常(chang)見(jian)故(gu)障(zhang)的(de)主(zhu)要(yao)措(cuo)施(shi)和(he)方(fang)法(fa)是(shi)盡(jin)量(liang)避(bi)免(mian)泄(xie)漏(lou)。在(zai)油(you)壓(ya)機(ji)必(bi)要(yao)的(de)保(bao)壓(ya)時(shi)間(jian)內(nei)，液(ye)壓(ya)缸(gang)的(de)保(bao)壓(ya)工(gong)作(zuo)壓(ya)力(li)無(wu)法(fa)維(wei)持(chi)並(bing)緩(huan)慢(man)降(jiang)低(di)。不(bu)保(bao)壓(ya)的(de)主(zhu)要(yao)原(yuan)因(yin)是(shi)液(ye)壓(ya)缸(gang)和(he)控(kong)製(zhi)閥(fa)的(de)泄(xie)漏(lou)。處(chu)理(li)不(bu)保(bao)壓(ya)常(chang)見(jian)故(gu)障(zhang)的(de)主(zhu)要(yao)措(cuo)施(shi)和(he)方(fang)法(fa)是(shi)盡(jin)量(liang)避(bi)免(mian)泄(xie)漏(lou)。

5
、小xiao型xing泵beng補bu油you或huo蓄xu能neng器qi補bu油you。此ci外wai
，泵beng源yuan電dian路lu中zhong的de一yi些xie方fang法fa也ye可ke用yong於yu壓ya力li保bao護hu。快kuai進jin時shi，兩liang個ge泵beng共gong同tong向xiang係xi統tong供gong油you。壓ya力li保bao護hu時shi，左zuo側ce大da流liu量liang泵beng通tong過guo電dian磁ci溢yi流liu閥fa調tiao節jie卸xie載zai

，右you側ce小xiao流liu量liang高gao壓ya泵beng僅jin提ti供gong工gong作zuo壓ya力li油you，以yi補bu充chong係xi統tong泄xie漏lou
，實shi現xian壓ya力li保bao護hu。

6、xunengqidegaoyayouyuyeyagangxianghulianjie
，yimibuxitongdexielou。xunengqichukouqiandanxiangjieliufadezuoyongshifangzhixunengqizaiqiehuanhuanxiangyushituranxieya
，zaochengchongji。caiyongchixubuyoudefangfa，zaibaoyaguochengzhongbuduanbuchongxitongdexielou。suiranxiangduixiaoji，danbaoyashijianchangshiyizhongyouxiaodefangfa
，keyishiyeyagangdegongzuoyalishizhongbaochibubian。