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齿(Chi)轮(Lun)液(Ye)压(Ya)泵(Beng)的(De)工(Gong)作(Zuo)原(Yuan)理(Li)是(Shi)什(Shi)么(Me)?(?)

2020-11-14 10:29:05
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液(Ye)压(Ya)齿(Chi)轮(Lun)泵(Beng)是(Shi)液(Ye)压(Ya)系(Xi)统(Tong)的(De)心(Xin)脏(Zang)。(?)在(Zai)液(Ye)压(Ya)系(Xi)统(Tong)中(Zhong),(?)必(Bi)须(Xu)至(Zhi)少(Shao)有(You)一(Yi)个(Ge)泵(Beng)。(?)液(Ye)压(Ya)齿(Chi)轮(Lun)泵(Beng)是(Shi)一(Yi)种(Zhong)能(Neng)量(Liang)转(Zhuan)换(Huan)装(Zhuang)置(Zhi),(?)其(Qi)功(Gong)能(Neng)是(Shi)使(Shi)流(Liu)体(Ti)运(Yun)动(Dong),(?)将(Jiang)机(Ji)械(Xie)能(Neng)转(Zhuan)化(Hua)为(Wei)流(Liu)体(Ti)能(Neng)量(Liang)。(?)泵(Beng)是(Shi)液(Ye)压(Ya)传(Chuan)动(Dong)系(Xi)统(Tong)中(Zhong)的(De)动(Dong)力(Li)元(Yuan)件(Jian),(?)由(You)原(Yuan)动(Dong)机(Ji)驱(Qu)动(Dong)。(?)它(Ta)从(Cong)原(Yuan)动(Dong)机(Ji)的(De)输(Shu)出(Chu)功(Gong)率(Lu)中(Zhong)提(Ti)取(Qu)机(Ji)械(Xie)能(Neng),(?)并(Bing)将(Jiang)其(Qi)转(Zhuan)化(Hua)为(Wei)流(Liu)体(Ti)的(De)压(Ya)力(Li)能(Neng),(?)为(Wei)系(Xi)统(Tong)提(Ti)供(Gong)加(Jia)压(Ya)油(You)。(?)然(Ran)后(Hou),(?)在(Zai)需(Xu)要(Yao)做(Zuo)功(Gong)的(De)地(Di)方(Fang),(?)执(Zhi)行(Xing)器(Qi)将(Jiang)流(Liu)体(Ti)压(Ya)力(Li)能(Neng)转(Zhuan)化(Hua)为(Wei)机(Ji)械(Xie)能(Neng),(?)输(Shu)出(Chu)到(Dao)齿(Chi)轮(Lun)泵(Beng)。(?)

液(Ye)压(Ya)齿(Chi)轮(Lun)泵(Beng)

齿(Chi)轮(Lun)泵(Beng)是(Shi)依(Yi)靠(Kao)泵(Beng)缸(Gang)和(He)啮(Nie)合(He)齿(Chi)轮(Lun)之(Zhi)间(Jian)形(Xing)成(Cheng)的(De)工(Gong)作(Zuo)容(Rong)积(Ji)的(De)变(Bian)化(Hua)和(He)运(Yun)动(Dong)来(Lai)输(Shu)送(Song)液(Ye)体(Ti)或(Huo)对(Dui)液(Ye)体(Ti)加(Jia)压(Ya)的(De)旋(Xuan)转(Zhuan)泵(Beng)。(?)两(Liang)个(Ge)封(Feng)闭(Bi)空(Kong)间(Jian)由(You)两(Liang)个(Ge)齿(Chi)轮(Lun)、(?)泵(Beng)体(Ti)和(He)前(Qian)后(Hou)盖(Gai)组(Zu)成(Cheng)。(?)齿(Chi)轮(Lun)转(Zhuan)动(Dong)时(Shi),(?)齿(Chi)轮(Lun)脱(Tuo)离(Li)侧(Ce)的(De)空(Kong)间(Jian)体(Ti)积(Ji)由(You)小(Xiao)变(Bian)大(Da),(?)形(Xing)成(Cheng)真(Zhen)空(Kong),(?)吸(Xi)入(Ru)液(Ye)体(Ti),(?)而(?)齿(Chi)轮(Lun)啮(Nie)合(He)侧(Ce)的(De)空(Kong)间(Jian)体(Ti)积(Ji)由(You)大(Da)变(Bian)小(Xiao),(?)从(Cong)而(?)将(Jiang)液(Ye)体(Ti)挤(Ji)压(Ya)到(Dao)管(Guan)道(Dao)中(Zhong)。(?)吸(Xi)入(Ru)室(Shi)和(He)排(Pai)出(Chu)室(Shi)由(You)两(Liang)个(Ge)齿(Chi)轮(Lun)的(De)啮(Nie)合(He)线(Xian)分(Fen)开(Kai)。(?)齿(Chi)轮(Lun)泵(Beng)出(Chu)口(Kou)的(De)压(Ya)力(Li)完(Wan)全(Quan)取(Qu)决(Jue)于(Yu)泵(Beng)出(Chu)口(Kou)的(De)阻(Zu)力(Li)。(?)


当(Dang)泵(Beng)的(De)主(Zhu)动(Dong)齿(Chi)轮(Lun)按(An)图(Tu)示(Shi)箭(Jian)头(Tou)方(Fang)向(Xiang)旋(Xuan)转(Zhuan)时(Shi),(?)齿(Chi)轮(Lun)泵(Beng)右(You)侧(Ce)((?)吸(Xi)油(You)腔(Qiang))(?)齿(Chi)轮(Lun)脱(Tuo)开(Kai)啮(Nie)合(He),(?)齿(Chi)轮(Lun)的(De)轮(Lun)齿(Chi)退(Tui)出(Chu)齿(Chi)间(Jian),(?)使(Shi)密(Mi)封(Feng)容(Rong)积(Ji)增(Zeng)大(Da),(?)形(Xing)成(Cheng)局(Ju)部(Bu)真(Zhen)空(Kong),(?)油(You)箱(Xiang)中(Zhong)的(De)油(You)液(Ye)在(Zai)外(Wai)界(Jie)大(Da)气(Qi)压(Ya)的(De)作(Zuo)用(Yong)下(Xia),(?)经(Jing)吸(Xi)油(You)管(Guan)路(Lu)、(?)吸(Xi)油(You)腔(Qiang)进(Jin)入(Ru)齿(Chi)间(Jian)。(?)随(Sui)着(Zhuo)齿(Chi)轮(Lun)的(De)旋(Xuan)转(Zhuan),(?)吸(Xi)入(Ru)齿(Chi)间(Jian)的(De)油(You)液(Ye)被(Bei)带(Dai)到(Dao)另(Ling)一(Yi)侧(Ce),(?)进(Jin)入(Ru)压(Ya)油(You)腔(Qiang)。(?)这(Zhe)时(Shi)轮(Lun)齿(Chi)进(Jin)入(Ru)啮(Nie)合(He),(?)使(Shi)密(Mi)封(Feng)容(Rong)积(Ji)逐(Zhu)渐(Jian)减(Jian)小(Xiao),(?)齿(Chi)轮(Lun)间(Jian)部(Bu)分(Fen)的(De)油(You)液(Ye)被(Bei)挤(Ji)出(Chu),(?)形(Xing)成(Cheng)了(Liao)齿(Chi)轮(Lun)泵(Beng)的(De)压(Ya)油(You)过(Guo)程(Cheng)。(?)


双(Shuang)联(Lian)齿(Chi)轮(Lun)泵(Beng)的(De)齿(Chi)轮(Lun)啮(Nie)合(He)时(Shi)齿(Chi)向(Xiang)接(Jie)触(Chu)线(Xian)把(Ba)吸(Xi)油(You)腔(Qiang)和(He)压(Ya)油(You)腔(Qiang)分(Fen)开(Kai),(?)起(Qi)配(Pei)油(You)作(Zuo)用(Yong)。(?)当(Dang)齿(Chi)轮(Lun)泵(Beng)的(De)主(Zhu)动(Dong)齿(Chi)轮(Lun)由(You)电(Dian)动(Dong)机(Ji)带(Dai)动(Dong)不(Bu)断(Duan)旋(Xuan)转(Zhuan)时(Shi),(?)轮(Lun)齿(Chi)脱(Tuo)开(Kai)啮(Nie)合(He)的(De)一(Yi)侧(Ce),(?)由(You)于(Yu)密(Mi)封(Feng)容(Rong)积(Ji)变(Bian)大(Da)则(Ze)不(Bu)断(Duan)从(Cong)油(You)箱(Xiang)中(Zhong)吸(Xi)油(You),(?)轮(Lun)齿(Chi)进(Jin)入(Ru)啮(Nie)合(He)的(De)一(Yi)侧(Ce),(?)由(You)于(Yu)密(Mi)封(Feng)容(Rong)积(Ji)减(Jian)小(Xiao)则(Ze)不(Bu)断(Duan)地(Di)排(Pai)油(You),(?)这(Zhe)就(Jiu)是(Shi)齿(Chi)轮(Lun)泵(Beng)的(De)工(Gong)作(Zuo)原(Yuan)理(Li)。(?)


泵(Beng)的(De)前(Qian)后(Hou)盖(Gai)和(He)泵(Beng)体(Ti)由(You)两(Liang)个(Ge)定(Ding)位(Wei)销(Xiao)17定(Ding)位(Wei),(?)用(Yong)6只(Zhi)螺(Luo)钉(Ding)固(Gu)紧(Jin)。(?)为(Wei)了(Liao)保(Bao)证(Zheng)齿(Chi)轮(Lun)能(Neng)灵(Ling)活(Huo)地(Di)转(Zhuan)动(Dong),(?)同(Tong)时(Shi)又(You)要(Yao)保(Bao)证(Zheng)泄(Xie)露(Lu)最(Zui)小(Xiao),(?)在(Zai)齿(Chi)轮(Lun)端(Duan)面(Mian)和(He)泵(Beng)盖(Gai)之(Zhi)间(Jian)应(Ying)有(You)适(Shi)当(Dang)间(Jian)隙(Xi)((?)轴(Zhou)向(Xiang)间(Jian)隙(Xi))(?),(?)对(Dui)小(Xiao)流(Liu)量(Liang)泵(Beng)轴(Zhou)向(Xiang)间(Jian)隙(Xi)为(Wei)0.025~0.04mm,(?)大(Da)流(Liu)量(Liang)泵(Beng)为(Wei)0.04~0.06mm。(?)齿(Chi)顶(Ding)和(He)泵(Beng)体(Ti)内(Nei)表(Biao)面(Mian)间(Jian)的(De)间(Jian)隙(Xi)((?)径(Jing)向(Xiang)间(Jian)隙(Xi))(?),(?)由(You)于(Yu)密(Mi)封(Feng)带(Dai)长(Chang),(?)同(Tong)时(Shi)齿(Chi)顶(Ding)线(Xian)速(Su)度(Du)形(Xing)成(Cheng)的(De)剪(Jian)切(Qie)流(Liu)动(Dong)又(You)和(He)油(You)液(Ye)泄(Xie)露(Lu)方(Fang)向(Xiang)相(Xiang)反(Fan),(?)故(Gu)对(Dui)泄(Xie)露(Lu)的(De)影(Ying)响(Xiang)较(Jiao)小(Xiao),(?)这(Zhe)里(Li)要(Yao)考(Kao)虑(Lu)的(De)问(Wen)题(Ti)是(Shi):(?)当(Dang)齿(Chi)轮(Lun)受(Shou)到(Dao)不(Bu)平(Ping)衡(Heng)的(De)径(Jing)向(Xiang)力(Li)后(Hou),(?)应(Ying)避(Bi)免(Mian)齿(Chi)顶(Ding)和(He)泵(Beng)体(Ti)内(Nei)壁(Bi)相(Xiang)碰(Peng),(?)所(Suo)以(Yi)径(Jing)向(Xiang)间(Jian)隙(Xi)就(Jiu)可(Ke)稍(Shao)大(Da),(?)一(Yi)般(Ban)取(Qu)0.13~0.16mm。(?)


齿(Chi)轮(Lun)泵(Beng)厂(Chang)家(Jia)为(Wei)了(Liao)防(Fang)止(Zhi)压(Ya)力(Li)油(You)从(Cong)泵(Beng)体(Ti)和(He)泵(Beng)盖(Gai)间(Jian)泄(Xie)露(Lu)到(Dao)泵(Beng)外(Wai),(?)会(Hui)减(Jian)小(Xiao)压(Ya)紧(Jin)螺(Luo)钉(Ding)的(De)拉(La)力(Li),(?)在(Zai)泵(Beng)体(Ti)两(Liang)侧(Ce)的(De)端(Duan)面(Mian)上(Shang)开(Kai)有(You)油(You)封(Feng)卸(Xie)荷(He)槽(Cao),(?)使(Shi)渗(Shen)入(Ru)泵(Beng)体(Ti)和(He)泵(Beng)盖(Gai)间(Jian)的(De)压(Ya)力(Li)油(You)引(Yin)入(Ru)吸(Xi)油(You)腔(Qiang)。(?)在(Zai)泵(Beng)盖(Gai)和(He)从(Cong)动(Dong)轴(Zhou)上(Shang)的(De)小(Xiao)孔(Kong),(?)其(Qi)作(Zuo)用(Yong)将(Jiang)泄(Xie)露(Lu)到(Dao)轴(Zhou)承(Cheng)端(Duan)部(Bu)的(De)压(Ya)力(Li)油(You)也(Ye)引(Yin)到(Dao)泵(Beng)的(De)吸(Xi)油(You)腔(Qiang)去(Qu),(?)防(Fang)止(Zhi)油(You)液(Ye)外(Wai)溢(Yi),(?)同(Tong)时(Shi)也(Ye)润(Run)滑(Hua)了(Liao)滚(Gun)针(Zhen)轴(Zhou)承(Cheng)。(?)



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