挖掘機操縱係統中液壓隨動係統應用技術說明

液ye壓ya隨sui動dong係xi統tong俗su稱cheng液ye壓ya放fang大da器qi，這zhe一yi方fang麵mian執zhi行xing機ji構gou能neng自zi動dong地di以yi一yi定ding的de準zhun確que度du重zhong複fu著zhe輸shu入ru信xin號hao的de變bian化hua規gui律lv，另ling一yi方fang麵mian又you起qi著zhe功gong率lv的de放fang大da作zuo用yong。

液壓隨動係統有滑閥式和旋轉式之分
，其中滑閥式液壓隨動係統又分為外部型式和內部型式兩種。

液壓隨動係統在轉向機構上的應用

yeyasuidongxitonghuafazaixiangyouyidongshiyouyeliuruzhuanxiangyougangdedaqiang
，tuidonghuosaixiangyouyidong

，shizhuanxianglunpianzhuan。cishizhuanxiangyougangxiaoqiangdeyouyeliurufankuiyougangdexiaoqiang，shixianfankuilianxi；反fan之zhi，滑hua閥fa向xiang左zuo移yi動dong時shi壓ya力li油you流liu入ru反fan饋kui油you缸gang的de小xiao腔qiang，其qi活huo塞sai把ba大da腔qiang的de油you液ye排pai向xiang油you缸gang的de小xiao腔qiang
，使shi轉zhuan向xiang輪lun向xiang相xiang反fan的de方fang向xiang偏pian轉zhuan。每mei側ce轉zhuan向xiang油you缸gang活huo塞sai行xing程cheng終zhong了le時shi差cha單dan向xiang閥fa向xiang轉zhuan向xiang油you缸gang和he反fan饋kui油you缸gang的de小xiao腔qiang補bu油you，以yi避bi免mian吸xi空kong現xian象xiang發fa生sheng。

液壓隨動係統在製動器上的應用

huafashizhidongqiyeyasuidongxitongdezuoyongshi，caixiazhitabanshijingguodanhuanglaicaozongganggan，shiqizuoduanxiangshangyadanhuang，jianghuosaixiangshangyidongbingtuikaizhuixingfa，shijinyoukouyuyouqiangxiangtong。cishigaoyayoujingjinyoukou
、錐(zhui)形(xing)閥(fa)及(ji)出(chu)油(you)口(kou)進(jin)入(ru)工(gong)作(zuo)油(you)缸(gang)而(er)實(shi)施(shi)製(zhi)動(dong)。當(dang)高(gao)壓(ya)油(you)作(zuo)用(yong)於(yu)活(huo)塞(sai)上(shang)的(de)壓(ya)力(li)相(xiang)對(dui)於(yu)銷(xiao)軸(zhou)產(chan)生(sheng)的(de)力(li)矩(ju)大(da)於(yu)由(you)彈(dan)簧(huang)的(de)壓(ya)縮(suo)力(li)對(dui)銷(xiao)軸(zhou)產(chan)生(sheng)的(de)力(li)矩(ju)時(shi)，活(huo)塞(sai)則(ze)向(xiang)下(xia)移(yi)動(dong)，錐(zhui)形(xing)閥(fa)即(ji)關(guan)閉(bi)。如(ru)果(guo)前(qian)者(zhe)力(li)矩(ju)仍(reng)高(gao)於(yu)後(hou)者(zhe)，則(ze)活(huo)塞(sai)將(jiang)再(zai)向(xiang)下(xia)移(yi)動(dong)，錐(zhui)形(xing)閥(fa)便(bian)與(yu)閥(fa)座(zuo)脫(tuo)開(kai)，油(you)腔(qiang)與(yu)回(hui)油(you)口(kou)相(xiang)通(tong)。此(ci)時(shi)製(zhi)動(dong)係(xi)統(tong)內(nei)的(de)部(bu)分(fen)油(you)液(ye)流(liu)回(hui)油(you)箱(xiang)，活(huo)塞(sai)回(hui)升(sheng)到(dao)將(jiang)錐(zhui)形(xing)閥(fa)關(guan)閉(bi)時(shi)為(wei)止(zhi)。鬆(song)開(kai)製(zhi)動(dong)踏(ta)板(ban)時(shi)活(huo)塞(sai)便(bian)下(xia)降(jiang)
，油(you)液(ye)從(cong)油(you)腔(qiang)經(jing)油(you)道(dao)、油孔流向回油口
，由此再流回油箱中，這時製動器鬆開。液ye壓ya隨sui動dong係xi統tong俗su稱cheng液ye壓ya放fang大da器qi，這zhe一yi方fang麵mian執zhi行xing機ji構gou能neng自zi動dong地di以yi一yi定ding的de準zhun確que度du重zhong複fu著zhe輸shu入ru信xin號hao的de變bian化hua規gui律lv，另ling一yi方fang麵mian又you起qi著zhe功gong率lv的de放fang大da作zuo用yong。

液壓隨動係統有滑閥式和旋轉式之分，其中滑閥式液壓隨動係統又分為外部型式和內部型式兩種。

液壓隨動係統在轉向機構上的應用

yeyasuidongxitonghuafazaixiangyouyidongshiyouyeliuruzhuanxiangyougangdedaqiang，tuidonghuosaixiangyouyidong

，shizhuanxianglunpianzhuan。cishizhuanxiangyougangxiaoqiangdeyouyeliurufankuiyougangdexiaoqiang，shixianfankuilianxi
；反fan之zhi
，滑hua閥fa向xiang左zuo移yi動dong時shi壓ya力li油you流liu入ru反fan饋kui油you缸gang的de小xiao腔qiang
，其qi活huo塞sai把ba大da腔qiang的de油you液ye排pai向xiang油you缸gang的de小xiao腔qiang，使shi轉zhuan向xiang輪lun向xiang相xiang反fan的de方fang向xiang偏pian轉zhuan。每mei側ce轉zhuan向xiang油you缸gang活huo塞sai行xing程cheng終zhong了le時shi差cha單dan向xiang閥fa向xiang轉zhuan向xiang油you缸gang和he反fan饋kui油you缸gang的de小xiao腔qiang補bu油you，以yi避bi免mian吸xi空kong現xian象xiang發fa生sheng。