怎(Zen)样(Yang)确(Que)保(Bao)液(Ye)压(Ya)泵(Beng)维(Wei)修(Xiu)正(Zheng)常(Chang)的(De)工(Gong)作(Zuo)条(Tiao)件(Jian)
虽(Sui)然(Ran)液(Ye)压(Ya)液(Ye)压(Ya)泵(Beng)均(Jun)为(Wei)容(Rong)积(Ji)式(Shi)泵(Beng),(?)有(You)必(Bi)定(Ding)的(De)自(Zi)吸(Xi)才(Cai)能(Neng),(?)但(Dan)泵(Beng)内(Nei)摩(Mo)擦(Ca)密(Mi)封(Feng)面(Mian)多(Duo),(?)自(Zi)吸(Xi)才(Cai)能(Neng)有(You)限(Xian),(?)尤(You)其(Qi)是(Shi)泵(Beng)内(Nei)部(Bu)流(Liu)道(Dao)杂(Za)乱(Luan),(?)一(Yi)般(Ban)吸(Xi)油(You)高(Gao)度(Du)((?)油(You)箱(Xiang)油(You)面(Mian)至(Zhi)泵(Beng)中(Zhong)心(Xin))(?)较(Jiao)低(Di),(?)在(Zai)12~(?)50cm,(?)而(?)有(You)些(Xie)泵(Beng)就(Jiu)明(Ming)文(Wen)规(Gui)定(Ding)不(Bu)容(Rong)许(Xu)自(Zi)吸(Xi),(?)如(Ru)ZB227型(Xing),(?)因(Yin)此(Ci)应(Ying)该(Gai)考(Kao)虑(Lu)其(Qi)吸(Xi)入(Ru)条(Tiao)件(Jian),(?)尽(Jin)量(Liang)减(Jian)小(Xiao)吸(Xi)入(Ru)阻(Zu)力(Li)。(?)
详(Xiang)细(Xi)如(Ru)下(Xia):(?)
①(?)有(You)些(Xie)泵(Beng)((?)如(Ru)柱(Zhu)塞(Sai)泵(Beng))(?)吸(Xi)入(Ru)管(Guan)不(Bu)得(De)装(Zhuang)设(She)过(Guo)滤(Lu)器(Qi),(?)不(Bu)然(Ran)采(Cai)用(Yong)泵(Beng)吸(Xi)进(Jin)口(Kou)在(Zai)油(You)箱(Xiang)油(You)面(Mian)之(Zhi)上(Shang)或(Huo)辅(Fu)佐(Zuo)泵(Beng)供(Gong)油(You)。(?)
②(?)最(Zui)好(Hao)使(Shi)油(You)箱(Xiang)在(Zai)泵(Beng)吸(Xi)进(Jin)口(Kou)之(Zhi)上(Shang),(?)或(Huo)采(Cai)用(Yong)辅(Fu)泵(Beng)供(Gong)油(You)。(?)如(Ru):(?)ZB型(Xing)液(Ye)压(Ya)泵(Beng)((?)除(Chu)ZB227型(Xing)外(Wai))(?)在(Zai)额(E)外(Wai)转(Zhuan)速(Su)((?)1500r/min)(?)以(Yi)下(Xia)工(Gong)作(Zuo)时(Shi),(?)容(Rong)许(Xu)自(Zi)吸(Xi),(?)但(Dan)如(Ru)此(Ci)会(Hui)导(Dao)致(Zhi)容(Rong)积(Ji)功(Gong)率(Lu)下(Xia)降(Jiang)5%左(Zuo)右(You),(?)且(Qie)势(Shi)必(Bi)影(Ying)响(Xiang)其(Qi)使(Shi)用(Yong)寿(Shou)命(Ming),(?)厂(Chang)家(Jia)一(Yi)般(Ban)不(Bu)推(Tui)荐(Jian)这(Zhe)种(Zhong)方(Fang)法(Fa);(?)厂(Chang)家(Jia)大(Da)多(Duo)推(Tui)荐(Jian)采(Cai)用(Yong)辅(Fu)佐(Zuo)泵(Beng)供(Gong)油(You),(?)压(Ya)力(Li)为(Wei)0.7MPa左(Zuo)右(You)。(?)CY型(Xing)液(Ye)压(Ya)泵(Beng)在(Zai)额(E)外(Wai)转(Zhuan)速(Su)下(Xia)工(Gong)作(Zuo)时(Shi),(?)容(Rong)许(Xu)自(Zi)吸(Xi),(?)吸(Xi)油(You)高(Gao)度(Du)≤(?)500mm,(?)在(Zai)最(Zui)高(Gao)转(Zhuan)速(Su)下(Xia)工(Gong)作(Zuo),(?)且(Qie)吸(Xi)油(You)管(Guan)道(Dao)较(Jiao)小(Xiao)时(Shi),(?)吸(Xi)油(You)高(Gao)度(Du)为(Wei)300~(?)500mm,(?)当(Dang)管(Guan)道(Dao)阻(Zu)力(Li)较(Jiao)大(Da)时(Shi),(?)泵(Beng)有(You)必(Bi)要(Yao)采(Cai)用(Yong)辅(Fu)佐(Zuo)泵(Beng)供(Gong)油(You),(?)供(Gong)油(You)压(Ya)力(Li)≤(?)0.4MPa。(?)
③(?)吸(Xi)油(You)管(Guan)应(Ying)短(Duan)而(?)直(Zhi),(?)且(Qie)管(Guan)径(Jing)应(Ying)比(Bi)泵(Beng)进(Jin)口(Kou)略(Lue)大(Da)。(?)
④(?)吸(Xi)入(Ru)截(Jie)止(Zhi)阀(Fa)应(Ying)全(Quan)开(Kai)。(?)不(Bu)然(Ran)会(Hui)发(Fa)生(Sheng)气(Qi)穴(Xue)现(Xian)象(Xiang),(?)导(Dao)致(Zhi)容(Rong)积(Ji)功(Gong)率(Lu)下(Xia)降(Jiang);(?)轴(Zhou)向(Xiang)柱(Zhu)塞(Sai)泵(Beng)在(Zai)吸(Xi)入(Ru)行(Xing)程(Cheng)时(Shi),(?)靠(Kao)球(Qiu)铰(Jiao)将(Jiang)柱(Zhu)塞(Sai)强(Qiang)行(Xing)从(Cong)液(Ye)压(Ya)缸(Gang)内(Nei)拉(La)出(Chu),(?)易(Yi)损(Sun)坏(Huai)球(Qiu)铰(Jiao)。(?)
⑤(?)确(Que)保(Bao)液(Ye)压(Ya)泵(Beng)泄(Xie)油(You)管(Guan)路(Lu)疏(Shu)通(Tong),(?)一(Yi)般(Ban)不(Bu)接(Jie)背(Bei)压(Ya)。(?)如(Ru)果(Guo)需(Xu)求(Qiu)背(Bei)压(Ya),(?)其(Qi)值(Zhi)也(Ye)不(Bu)得(De)超(Chao)过(Guo)0.16~(?)0.20MPa,(?)不(Bu)然(Ran)油(You)压(Ya)将(Jiang)冲(Chong)破(Po)低(Di)压(Ya)密(Mi)封(Feng),(?)如(Ru)轴(Zhou)封(Feng)等(Deng)。(?)
⑥(?)外(Wai)接(Jie)泄(Xie)油(You)管(Guan)应(Ying)确(Que)保(Bao)液(Ye)压(Ya)泵(Beng)壳(Ke)体(Ti)内(Nei)充(Chong)溢(Yi)油(You)液(Ye),(?)防(Fang)止(Zhi)停(Ting)车(Che)时(Shi)壳(Ke)内(Nei)油(You)液(Ye)倒(Dao)流(Liu)回(Hui)油(You)箱(Xiang),(?)如(Ru)使(Shi)泄(Xie)油(You)口(Kou)高(Gao)于(Yu)壳(Ke)体(Ti)。(?)
⑦(?)油(You)液(Ye)黏(Nian)度(Du)应(Ying)符(Fu)合(He)要(Yao)求(Qiu)。(?)
⑧(?)坚(Jian)持(Chi)油(You)液(Ye)清(Qing)洁(Jie),(?)维(Wei)持(Chi)必(Bi)定(Ding)的(De)滤(Lu)油(You)精(Jing)度(Du)。(?)
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