电(Dian)动(Dong)执(Zhi)行(Xing)器(Qi)((?)Electronic Actuator)(?),(?)又(You)称(Cheng)为(Wei)电(Dian)动(Dong)执(Zhi)行(Xing)机(Ji)构(Gou)。(?)它(Ta)是(Shi)一(Yi)种(Zhong)能(Neng)提(Ti)供(Gong)直(Zhi)线(Xian)或(Huo)旋(Xuan)转(Zhuan)运(Yun)动(Dong)的(De)驱(Qu)动(Dong)装(Zhuang)置(Zhi),(?)它(Ta)利(Li)用(Yong)电(Dian)能(Neng)驱(Qu)动(Dong)并(Bing)在(Zai)控(Kong)制(Zhi)信(Xin)号(Hao)作(Zuo)用(Yong)下(Xia)工(Gong)作(Zuo),(?)应(Ying)用(Yong)于(Yu)各(Ge)种(Zhong)工(Gong)业(Ye)自(Zi)动(Dong)化(Hua)过(Guo)程(Cheng)控(Kong)制(Zhi)环(Huan)节(Jie)。(?)
1、(?)电(Dian)动(Dong)多(Duo)回(Hui)转(Zhuan)式(Shi)执(Zhi)行(Xing)机(Ji)构(Gou)
(?) (?)电(Dian)力(Li)驱(Qu)动(Dong)的(De)多(Duo)回(Hui)转(Zhuan)式(Shi)执(Zhi)行(Xing)机(Ji)构(Gou)是(Shi)最(Zui)常(Chang)用(Yong)、(?)最(Zui)可(Ke)靠(Kao)的(De)执(Zhi)行(Xing)机(Ji)构(Gou)类(Lei)型(Xing)之(Zhi)一(Yi)。(?)使(Shi)用(Yong)单(Dan)相(Xiang)或(Huo)三(San)相(Xiang)电(Dian)动(Dong)机(Ji)驱(Qu)动(Dong)齿(Chi)轮(Lun)或(Huo)蜗(Wo)轮(Lun)蜗(Wo)杆(Gan)最(Zui)后(Hou)驱(Qu)动(Dong)阀(Fa)杆(Gan)螺(Luo)母(Mu),(?)阀(Fa)杆(Gan)螺(Luo)母(Mu)使(Shi)阀(Fa)杆(Gan)产(Chan)生(Sheng)运(Yun)动(Dong)使(Shi)阀(Fa)门(Men)打(Da)开(Kai)或(Huo)关(Guan)闭(Bi)。(?)
(?) (?)多(Duo)回(Hui)转(Zhuan)式(Shi)电(Dian)动(Dong)执(Zhi)行(Xing)机(Ji)构(Gou)可(Ke)以(Yi)快(Kuai)速(Su)驱(Qu)动(Dong)大(Da)尺(Chi)寸(Cun)阀(Fa)门(Men)。(?)为(Wei)了(Liao)保(Bao)护(Hu)阀(Fa)门(Men)不(Bu)受(Shou)损(Sun)坏(Huai),(?)安(An)装(Zhuang)在(Zai)在(Zai)阀(Fa)门(Men)行(Xing)程(Cheng)的(De)终(Zhong)点(Dian)的(De)限(Xian)位(Wei)开(Kai)关(Guan)会(Hui)切(Qie)断(Duan)电(Dian)机(Ji)电(Dian)源(Yuan),(?)同(Tong)时(Shi)当(Dang)安(An)全(Quan)力(Li)矩(Ju)被(Bei)超(Chao)过(Guo)时(Shi),(?)力(Li)矩(Ju)感(Gan)应(Ying)装(Zhuang)置(Zhi)也(Ye)会(Hui)切(Qie)断(Duan)电(Dian)机(Ji)电(Dian)源(Yuan),(?)位(Wei)置(Zhi)开(Kai)关(Guan)用(Yong)于(Yu)指(Zhi)示(Shi)阀(Fa)门(Men)的(De)开(Kai)关(Guan)状(Zhuang)态(Tai),(?)安(An)装(Zhuang)离(Li)合(He)器(Qi)装(Zhuang)置(Zhi)的(De)手(Shou)轮(Lun)机(Ji)构(Gou)可(Ke)在(Zai)电(Dian)源(Yuan)故(Gu)障(Zhang)时(Shi)手(Shou)动(Dong)操(Cao)作(Zuo)阀(Fa)门(Men)。(?)
(?) (?)这(Zhe)种(Zhong)类(Lei)型(Xing)执(Zhi)行(Xing)机(Ji)构(Gou)的(De)主(Zhu)要(Yao)优(You)点(Dian)是(Shi)所(Suo)有(You)部(Bu)件(Jian)都(Du)安(An)装(Zhuang)在(Zai)一(Yi)个(Ge)壳(Ke)体(Ti)内(Nei),(?)在(Zai)这(Zhe)个(Ge)防(Fang)水(Shui)、(?)防(Fang)尘(Chen)、(?)防(Fang)爆(Bao)的(De)外(Wai)壳(Ke)内(Nei)集(Ji)成(Cheng)了(Liao)所(Suo)有(You)基(Ji)本(Ben)及(Ji)先(Xian)进(Jin)的(De)功(Gong)能(Neng)。(?)主(Zhu)要(Yao)缺(Que)点(Dian)是(Shi),(?)当(Dang)电(Dian)源(Yuan)故(Gu)障(Zhang)时(Shi),(?)阀(Fa)门(Men)只(Zhi)能(Neng)保(Bao)持(Chi)在(Zai)原(Yuan)位(Wei),(?)只(Zhi)有(You)使(Shi)用(Yong)备(Bei)用(Yong)电(Dian)源(Yuan)系(Xi)统(Tong),(?)阀(Fa)门(Men)才(Cai)能(Neng)实(Shi)现(Xian)故(Gu)障(Zhang)安(An)全(Quan)位(Wei)置(Zhi)((?)故(Gu)障(Zhang)开(Kai)或(Huo)故(Gu)障(Zhang)关(Guan))(?)
2、(?)电(Dian)动(Dong)单(Dan)回(Hui)转(Zhuan)式(Shi)执(Zhi)行(Xing)机(Ji)构(Gou)
(?) (?)这(Zhe)种(Zhong)执(Zhi)行(Xing)机(Ji)构(Gou)类(Lei)似(Si)于(Yu)电(Dian)动(Dong)多(Duo)回(Hui)转(Zhuan)执(Zhi)行(Xing)机(Ji)构(Gou),(?)主(Zhu)要(Yao)差(Cha)别(Bie)是(Shi)执(Zhi)行(Xing)机(Ji)构(Gou)最(Zui)终(Zhong)输(Shu)出(Chu)的(De)是(Shi)1/4转(Zhuan)记(Ji)90度(Du)的(De)运(Yun)动(Dong)。(?)新(Xin)一(Yi)代(Dai)电(Dian)动(Dong)单(Dan)回(Hui)转(Zhuan)式(Shi)执(Zhi)行(Xing)机(Ji)构(Gou)结(Jie)合(He)了(Liao)大(Da)部(Bu)分(Fen)多(Duo)回(Hui)转(Zhuan)执(Zhi)行(Xing)机(Ji)构(Gou)的(De)复(Fu)杂(Za)功(Gong)能(Neng),(?)例(Li)如(Ru):(?)使(Shi)用(Yong)非(Fei)进(Jin)入(Ru)式(Shi)用(Yong)户(Hu)友(You)好(Hao)的(De)操(Cao)作(Zuo)界(Jie)面(Mian)实(Shi)现(Xian)参(Can)数(Shu)设(She)定(Ding)与(Yu)诊(Zhen)断(Duan)功(Gong)能(Neng)。(?)
(?) (?)单(Dan)回(Hui)转(Zhuan)执(Zhi)行(Xing)机(Ji)构(Gou)结(Jie)构(Gou)紧(Jin)凑(?)可(Ke)以(Yi)安(An)装(Zhuang)到(Dao)小(Xiao)尺(Chi)寸(Cun)阀(Fa)门(Men)上(Shang),(?)通(Tong)常(Chang)输(Shu)出(Chu)力(Li)矩(Ju)可(Ke)达(Da)800公(Gong)斤(Jin)米(Mi),(?)另(Ling)外(Wai)应(Ying)为(Wei)所(Suo)需(Xu)电(Dian)源(Yuan)较(Jiao)小(Xiao),(?)它(Ta)们(Men)可(Ke)以(Yi)安(An)装(Zhuang)电(Dian)池(Chi)来(Lai)实(Shi)现(Xian)故(Gu)障(Zhang)安(An)全(Quan)操(Cao)作(Zuo)。(?)