南京澤登機(jī)電專業(yè)銷售原裝德國(guó)力士樂(lè)齒輪泵
聯(lián)系人:張  慧
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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)到最大時(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序列最大壓力210Kg，最高轉(zhuǎn)速3000轉(zhuǎn)，性能卓越，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(guó)力士樂(lè)齒輪泵，PGM序列最大壓力210Kg，最高轉(zhuǎn)速3000轉(zhuǎn)，性能卓越，專業(yè)應(yīng)用于注塑機(jī)伺服系統(tǒng)。

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南京澤登代理銷售博世力士樂(lè)(BOSCH-REXROTH)生產(chǎn)的A10VO10、18、28、45、71、100、140柱塞變量恒壓泵。
博世Bosch液壓產(chǎn)品主要應(yīng)用于塑料機(jī)械、橡膠、冶金、電力、工程機(jī)械、船舶、起重機(jī)械等行業(yè)。

壓力繼電器是利用液體的壓力來(lái)啟閉電氣觸點(diǎn)的液壓電氣轉(zhuǎn)換元件。當(dāng)系統(tǒng)壓力達(dá)到壓力繼電器的調(diào)定值時(shí)，發(fā)出電信號(hào)，使電氣元件（如電磁鐵、電機(jī)、時(shí)間繼電器、電磁離合器等）動(dòng)作，使油路卸壓、換向，執(zhí)行元件實(shí)現(xiàn)順序動(dòng)作，或關(guān)閉電動(dòng)機(jī)使系統(tǒng)停止工作，起安全保護(hù)作用等。
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