什(Shi)么(Me)是(Shi)液(Ye)压(Ya)阀(Fa)及(Ji)其(Qi)作(Zuo)用(Yong)
液(Ye)压(Ya)阀(Fa)是(Shi)一(Yi)种(Zhong)用(Yong)压(Ya)力(Li)油(You)操(Cao)作(Zuo)的(De)自(Zi)动(Dong)化(Hua)元(Yuan)件(Jian),(?)它(Ta)受(Shou)配(Pei)压(Ya)阀(Fa)压(Ya)力(Li)油(You)的(De)控(Kong)制(Zhi),(?)通(Tong)常(Chang)与(Yu)电(Dian)磁(Ci)配(Pei)压(Ya)阀(Fa)组(Zu)合(He)使(Shi)用(Yong),(?)可(Ke)用(Yong)于(Yu)远(Yuan)距(Ju)离(Li)控(Kong)制(Zhi)水(Shui)电(Dian)站(Zhan)油(You)、(?)气(Qi)、(?)水(Shui)管(Guan)路(Lu)系(Xi)统(Tong)的(De)通(Tong)断(Duan),(?)也(Ye)在(Zai)液(Ye)压(Ya)拔(Ba)管(Guan)机(Ji)、(?)履(Lu)带(Dai)式(Shi)钻(Zuan)机(Ji)上(Shang)被(Bei)广(Guang)泛(Fan)使(Shi)用(Yong)。(?)常(Chang)用(Yong)于(Yu)夹(Jia)紧(Jin)、(?)控(Kong)制(Zhi)、(?)润(Run)滑(Hua)等(Deng)油(You)路(Lu)。(?)有(You)直(Zhi)动(Dong)型(Xing)与(Yu)先(Xian)导(Dao)型(Xing)之(Zhi)分(Fen),(?)多(Duo)用(Yong)先(Xian)导(Dao)型(Xing)。(?)
液(Ye)压(Ya)阀(Fa)其(Qi)主(Zhu)要(Yao)使(Shi)用(Yong)作(Zuo)用(Yong)有(You)两(Liang)个(Ge),(?)流(Liu)量(Liang)控(Kong)制(Zhi)和(He)压(Ya)力(Li)控(Kong)制(Zhi):(?)
流(Liu)量(Liang)控(Kong)制(Zhi):(?)
利(Li)用(Yong)调(Diao)节(Jie)阀(Fa)芯(Xin)和(He)阀(Fa)体(Ti)间(Jian)的(De)节(Jie)流(Liu)口(Kou)面(Mian)积(Ji)和(He)它(Ta)所(Suo)产(Chan)生(Sheng)的(De)局(Ju)部(Bu)阻(Zu)力(Li)对(Dui)流(Liu)量(Liang)进(Jin)行(Xing)调(Diao)节(Jie),(?)从(Cong)而(?)控(Kong)制(Zhi)执(Zhi)行(Xing)元(Yuan)件(Jian)的(De)运(Yun)动(Dong)速(Su)度(Du)。(?)流(Liu)量(Liang)控(Kong)制(Zhi)阀(Fa)按(An)用(Yong)途(Tu)分(Fen)为(Wei) 5种(Zhong)。(?)⑴(?)节(Jie)流(Liu)阀(Fa):(?)在(Zai)调(Diao)定(Ding)节(Jie)流(Liu)口(Kou)面(Mian)积(Ji)后(Hou),(?)能(Neng)使(Shi)载(Zai)荷(He)压(Ya)力(Li)变(Bian)化(Hua)不(Bu)大(Da)和(He)运(Yun)动(Dong)均(Jun)匀(Yun)性(Xing)要(Yao)求(Qiu)不(Bu)高(Gao)的(De)执(Zhi)行(Xing)元(Yuan)件(Jian)的(De)运(Yun)动(Dong)速(Su)度(Du)基(Ji)本(Ben)上(Shang)保(Bao)持(Chi)稳(Wen)定(Ding)。(?)⑵(?)调(Diao)速(Su)阀(Fa):(?)在(Zai)载(Zai)荷(He)压(Ya)力(Li)变(Bian)化(Hua)时(Shi)能(Neng)保(Bao)持(Chi)节(Jie)流(Liu)阀(Fa)的(De)进(Jin)出(Chu)口(Kou)压(Ya)差(Cha)为(Wei)定(Ding)值(Zhi)。(?)这(Zhe)样(Yang),(?)在(Zai)节(Jie)流(Liu)口(Kou)面(Mian)积(Ji)调(Diao)定(Ding)以(Yi)后(Hou),(?)不(Bu)论(Lun)载(Zai)荷(He)压(Ya)力(Li)如(Ru)何(He)变(Bian)化(Hua),(?)调(Diao)速(Su)阀(Fa)都(Du)能(Neng)保(Bao)持(Chi)通(Tong)过(Guo)节(Jie)流(Liu)阀(Fa)的(De)流(Liu)量(Liang)不(Bu)变(Bian),(?)从(Cong)而(?)使(Shi)执(Zhi)行(Xing)元(Yuan)件(Jian)的(De)运(Yun)动(Dong)速(Su)度(Du)稳(Wen)定(Ding)。(?)⑶(?)分(Fen)流(Liu)阀(Fa):(?)不(Bu)论(Lun)载(Zai)荷(He)大(Da)小(Xiao),(?)能(Neng)使(Shi)同(Tong)一(Yi)油(You)源(Yuan)的(De)两(Liang)个(Ge)执(Zhi)行(Xing)元(Yuan)件(Jian)得(De)到(Dao)相(Xiang)等(Deng)流(Liu)量(Liang)的(De)为(Wei)等(Deng)量(Liang)分(Fen)流(Liu)阀(Fa)或(Huo)同(Tong)步(Bu)阀(Fa);(?)得(De)到(Dao)按(An)比(Bi)例(Li)分(Fen)配(Pei)流(Liu)量(Liang)的(De)为(Wei)比(Bi)例(Li)分(Fen)流(Liu)阀(Fa)。(?)⑷(?)集(Ji)流(Liu)阀(Fa):(?)作(Zuo)用(Yong)与(Yu)分(Fen)流(Liu)阀(Fa)相(Xiang)反(Fan),(?)使(Shi)流(Liu)入(Ru)集(Ji)流(Liu)阀(Fa)的(De)流(Liu)量(Liang)按(An)比(Bi)例(Li)分(Fen)配(Pei)。(?)⑸(?)分(Fen)流(Liu)集(Ji)流(Liu)阀(Fa):(?)兼(Jian)具(Ju)分(Fen)流(Liu)阀(Fa)和(He)集(Ji)流(Liu)阀(Fa)两(Liang)种(Zhong)功(Gong)能(Neng)。(?)
压(Ya)力(Li)控(Kong)制(Zhi):(?)
按(An)用(Yong)途(Tu)分(Fen)为(Wei)溢(Yi)流(Liu)阀(Fa)减(Jian)压(Ya)阀(Fa)和(He)顺(Shun)序(Xu)阀(Fa)。(?)⑴(?)溢(Yi)流(Liu)阀(Fa):(?)能(Neng)控(Kong)制(Zhi)液(Ye)压(Ya)系(Xi)统(Tong)在(Zai)达(Da)到(Dao)调(Diao)定(Ding)压(Ya)力(Li)时(Shi)保(Bao)持(Chi)恒(Heng)定(Ding)状(Zhuang)态(Tai)。(?)用(Yong)於(Yu)过(Guo)载(Zai)保(Bao)护(Hu)的(De)溢(Yi)流(Liu)阀(Fa)称(Cheng)为(Wei)安(An)全(Quan)阀(Fa)。(?)当(Dang)系(Xi)统(Tong)发(Fa)生(Sheng)故(Gu)障(Zhang),(?)压(Ya)力(Li)升(Sheng)高(Gao)到(Dao)可(Ke)能(Neng)造(Zao)成(Cheng)破(Po)坏(Huai)的(De)限(Xian)定(Ding)值(Zhi)时(Shi),(?)阀(Fa)口(Kou)会(Hui)打(Da)开(Kai)而(?)溢(Yi)流(Liu),(?)以(Yi)保(Bao)证(Zheng)系(Xi)统(Tong)的(De)安(An)全(Quan)。(?)⑵(?)减(Jian)压(Ya)阀(Fa):(?)能(Neng)控(Kong)制(Zhi)分(Fen)支(Zhi)回(Hui)路(Lu)得(De)到(Dao)比(Bi)主(Zhu)回(Hui)路(Lu)油(You)压(Ya)低(Di)的(De)稳(Wen)定(Ding)压(Ya)力(Li)。(?)减(Jian)压(Ya)阀(Fa)按(An)它(Ta)所(Suo)控(Kong)制(Zhi)的(De)压(Ya)力(Li)功(Gong)能(Neng)不(Bu)同(Tong),(?)又(You)可(Ke)分(Fen)为(Wei)定(Ding)值(Zhi)减(Jian)压(Ya)阀(Fa)((?)输(Shu)出(Chu)压(Ya)力(Li)为(Wei)恒(Heng)定(Ding)值(Zhi))(?)定(Ding)差(Cha)减(Jian)压(Ya)阀(Fa)((?)输(Shu)入(Ru)与(Yu)输(Shu)出(Chu)压(Ya)力(Li)差(Cha)为(Wei)定(Ding)值(Zhi))(?)和(He)定(Ding)比(Bi)减(Jian)压(Ya)阀(Fa)((?)输(Shu)入(Ru)与(Yu)输(Shu)出(Chu)压(Ya)力(Li)间(Jian)保(Bao)持(Chi)一(Yi)定(Ding)的(De)比(Bi)例(Li))(?)。(?)⑶(?)顺(Shun)序(Xu)阀(Fa):(?)能(Neng)使(Shi)一(Yi)个(Ge)执(Zhi)行(Xing)元(Yuan)件(Jian)((?)如(Ru)液(Ye)压(Ya)缸(Gang)液(Ye)压(Ya)马(Ma)达(Da)等(Deng))(?)动(Dong)作(Zuo)以(Yi)后(Hou),(?)再(Zai)按(An)顺(Shun)序(Xu)使(Shi)其(Qi)他(Ta)执(Zhi)行(Xing)元(Yuan)件(Jian)动(Dong)作(Zuo)。(?)油(You)泵(Beng)产(Chan)生(Sheng)的(De)压(Ya)力(Li)先(Xian)推(Tui)动(Dong)液(Ye)压(Ya)缸(Gang)1运(Yun)动(Dong),(?)同(Tong)时(Shi)通(Tong)过(Guo)顺(Shun)序(Xu)阀(Fa)的(De)进(Jin)油(You)口(Kou)作(Zuo)用(Yong)在(Zai)面(Mian)积(Ji)A 上(Shang),(?)当(Dang)液(Ye)压(Ya)缸(Gang)1运(Yun)动(Dong)完(Wan)全(Quan)成(Cheng)后(Hou),(?)压(Ya)力(Li)升(Sheng)高(Gao),(?)作(Zuo)用(Yong)在(Zai)面(Mian)积(Ji)A 的(De)向(Xiang)上(Shang)推(Tui)力(Li)大(Da)於(Yu)弹(Dan)簧(Huang)的(De)调(Diao)定(Ding)值(Zhi)后(Hou),(?)阀(Fa)芯(Xin)上(Shang)升(Sheng)使(Shi)进(Jin)油(You)口(Kou)与(Yu)出(Chu)油(You)口(Kou)相(Xiang)通(Tong),(?)使(Shi)液(Ye)压(Ya)缸(Gang)2运(Yun)动(Dong)。(?)
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