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南京澤登機(jī)電專業(yè)銷售原裝德國力士樂齒輪泵
: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)子為主動輪，外轉(zhuǎn)子為從動論，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。由于內(nèi)外轉(zhuǎn)子齒數(shù)有一齒差，在嚙合過程中有二次嚙合存在,因此能形成幾個獨(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，包液腔內(nèi)產(chǎn)生局部真空，在大氣壓力作用下，液體通過進(jìn)口管道和泵蓋上的環(huán)形槽，進(jìn)入泵腔開始吸液。當(dāng)包液腔容積達(dá)到zui大時，吸液過程結(jié)束。當(dāng)包液腔內(nèi)的容積由大變小時，包液腔內(nèi)的液體就從另一個環(huán)形槽壓出，此為泵的排出過程。

內(nèi)嚙合齒輪泵在工作過程中，內(nèi)轉(zhuǎn)子的一個齒轉(zhuǎn)過一周，出現(xiàn)一個工作循環(huán)，即完成泵吸液至排液過程。一個轉(zhuǎn)子泵的內(nèi)轉(zhuǎn)子有個齒，它每旋轉(zhuǎn)一周，必須出現(xiàn)個與上述腔相同的工作循環(huán)，內(nèi)嚙合齒輪泵便通過個工作循環(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，必發(fā)生相對運(yùn)動，此運(yùn)動使內(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)動平穩(wěn)，噪聲低，容積效率較高等。缺點(diǎn)是流量脈動大，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。

原裝德國力士樂齒輪泵，PGM序列zui大壓力210Kg，zui高轉(zhuǎn)速3000轉(zhuǎn)，性能，專業(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

原裝德國力士樂齒輪泵，PGM序列zui大壓力210Kg，zui高轉(zhuǎn)速3000轉(zhuǎn)，性能，專業(yè)應(yīng)用于注塑機(jī)伺服系統(tǒng)。

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