南京澤登機(jī)電專(zhuān)業(yè)銷(xiāo)售原裝德國(guó)力士樂(lè)齒輪泵
:張 慧
傳真:
:381045766 公司:http://www.njzdjd.com
REXROTH內(nèi)嚙合齒輪泵的工作原理
在內(nèi)嚙合齒輪泵中,內(nèi)轉(zhuǎn)子為主動(dòng)輪,外轉(zhuǎn)子為從動(dòng)論,內(nèi)外轉(zhuǎn)子的速比i=Z1/Z2。內(nèi)外齒輪節(jié)圓緊靠一邊,另一邊被泵蓋上“月牙板”隔開(kāi)。由于內(nèi)外轉(zhuǎn)子齒數(shù)有一齒差,在嚙合過(guò)程中有二次嚙合存在,因此能形成幾個(gè)獨(dú)立的封閉包液腔。隨著內(nèi)外轉(zhuǎn)子的嚙合旋轉(zhuǎn),各包液腔的容積發(fā)生不同的變化,當(dāng)包液腔容積由小變大時(shí),包液腔內(nèi)產(chǎn)生局部真空,在大氣壓力作用下,液體通過(guò)進(jìn)口管道和泵蓋上的環(huán)形槽,進(jìn)入泵腔開(kāi)始吸液。當(dāng)包液腔容積達(dá)到zui大時(shí),吸液過(guò)程結(jié)束。當(dāng)包液腔內(nèi)的容積由大變小時(shí),包液腔內(nèi)的液體就從另一個(gè)環(huán)形槽壓出,此為泵的排出過(guò)程。
內(nèi)嚙合齒輪泵在工作過(guò)程中,內(nèi)轉(zhuǎn)子的一個(gè)齒轉(zhuǎn)過(guò)一周,出現(xiàn)一個(gè)工作循環(huán),即完成泵吸液至排液過(guò)程。一個(gè)轉(zhuǎn)子泵的內(nèi)轉(zhuǎn)子有個(gè)齒,它每旋轉(zhuǎn)一周,必須出現(xiàn)個(gè)與上述腔相同的工作循環(huán),內(nèi)嚙合齒輪泵便通過(guò)個(gè)工作循環(huán)連續(xù)不斷地向外輸液,故內(nèi)外轉(zhuǎn)子繞互相平行的兩軸線做不同速度的同向運(yùn)轉(zhuǎn)時(shí),必發(fā)生相對(duì)運(yùn)動(dòng),此運(yùn)動(dòng)使內(nèi)外轉(zhuǎn)子間產(chǎn)生不斷變化的空間,并與吸液排液道接通,以達(dá)到吸排液的目的。
特點(diǎn):內(nèi)嚙合齒輪泵可反向輸送,只要更換電機(jī)轉(zhuǎn)向即可;內(nèi)嚙合齒輪泵泵體可轉(zhuǎn)向,進(jìn)出口位置成直角,便于選配進(jìn)出口位置;內(nèi)嚙合齒輪泵在泵體、端蓋、軸承座間都有連接方便的保溫或冷卻介質(zhì)的進(jìn)出接口。
嚙合齒輪泵有許多優(yōu)點(diǎn),如結(jié)構(gòu)緊湊,體積小,零件少,轉(zhuǎn)速可高達(dá)10000r/mim,運(yùn)動(dòng)平穩(wěn),噪聲低,容積效率較高等。缺點(diǎn)是流量脈動(dòng)大,轉(zhuǎn)子的制造工藝復(fù)雜等。
內(nèi)嚙合齒輪泵可正、反轉(zhuǎn),可作液壓馬達(dá)用。
原裝德國(guó)力士樂(lè)齒輪泵,PGM序列zui大壓力210Kg,zui高轉(zhuǎn)速3000轉(zhuǎn),性能,專(zhuān)業(yè)應(yīng)用于注塑機(jī)伺服系統(tǒng)。
PGM4-3X/025RA11VU2 REXROTH R901283398
PGM4-3X/032RA11VU2 REXROTH R901283399
PGM4-3X/040RA11VU2 REXROTH R901283400
PGM4-3X/050RA11VU2 REXROTH R901283401
PGM4-3X/063RA11VU2 REXROTH R901283402
PGM4-3X/080RA11VU2 REXROTH R901283403
PGM4-3X/100RA11VU2 REXROTH R901283404
PGM4-3X/125RA11VU2 REXROTH R901283405
PGM4-3X/160RA11VU2 REXROTH R901283406
原裝德國(guó)力士樂(lè)齒輪泵,PGM序列zui大壓力210Kg,zui高轉(zhuǎn)速3000轉(zhuǎn),性能,專(zhuān)業(yè)應(yīng)用于注塑機(jī)伺服系統(tǒng)。
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