REXROTH力士樂齒輪泵PGH型號運行噪音很低振動小
密封間隙補償使在低速、低粘度下也能高效運作
適合多種不同速度和粘度范圍
所有安裝尺寸和額定尺寸原件可相連
可和葉片泵和軸向柱塞泵連接使用
REXROTH力士樂齒輪泵在轉(zhuǎn)速恒定的條件下，輸出流量可變的為變量泵，反之為定量泵。他們zui大的不同就是變量泵的軸是便心安裝。 簡單來說定量泵的轉(zhuǎn)速選定后，他的流量和壓力就確定了，就不能調(diào)節(jié)。變量泵的輸出流量可以根據(jù)系統(tǒng)的壓力變化（外負載的大?。?，自動地調(diào)節(jié)流量，就是壓力高時輸出流量小，壓力低時輸出流量大，這樣他可以節(jié)省液壓元件的數(shù)量，從而簡化了油路系統(tǒng)，而且可以減少油發(fā)熱。缺點是流量脈動嚴(yán)重，系統(tǒng)壓力不太平穩(wěn)，泵的壽命短，泵的軸承容易壞，因為他是便心安裝，而且泵的嘈音大。
力士樂葉片泵通過調(diào)節(jié)偏心距、柱塞泵通過調(diào)節(jié)滑板角度可以實現(xiàn)變量。
國REXROTH生產(chǎn)的支撐塊浮動式REXROTH內(nèi)嚙合齒輪泵，內(nèi)外齒輪均采用修正漸開線齒形，用活動月牙板將高、低壓腔分開，并在徑向形成壓力補償，使得內(nèi)外齒齒頂與月牙板之間形成幾無間隙的密封，軸向動補償盤則保證軸向間隙的良好密封，使得該泵的內(nèi)泄漏減至zui低。低壓12Mpa、中壓21 Mpa、高壓33 Mpa。此結(jié)構(gòu)容積效率高、結(jié)構(gòu)復(fù)雜，制造成本高。他適用于輸送各種輕質(zhì)、揮發(fā)性液體，直至重質(zhì)、粘稠液體，甚至半固態(tài)液體。廣泛應(yīng)用于石油、化工、油脂、涂料等行業(yè)。
日本REXROTH公司生產(chǎn)的直線共軛內(nèi)嚙合齒輪泵，內(nèi)外齒輪采用固定月牙板分開，齒輪采用直線共軛方式進行嚙合。直線共軛內(nèi)嚙合齒輪泵其長壽命特性取決于耐磨性，內(nèi)部機械表面及各功能零件之間有一層油膜保護層，幾乎沒有磨損，即使使用一般液壓油，也不易磨損機件。另外，采用雙極加*承壓力差原理，在增加工作壓力的同時，也改善了泵的工作條件，延長了泵的使用壽命。壓力級分低壓8Mpa、中壓16 Mpa、高壓32 Mpa三種。出油口相對吸油口位置有0°，90°，180°，270°四種，方便用戶選擇布管。該型泵結(jié)構(gòu)簡單，制造成本低。
REXROTH內(nèi)嚙合齒輪泵是采用齒輪內(nèi)嚙合原理，內(nèi)外齒輪節(jié)圓緊靠一邊，另一邊被泵蓋上“月牙板”隔開。主軸上的主動內(nèi)齒輪帶動其中外齒輪同向轉(zhuǎn)動，在進口處齒輪相互分離形成負壓而吸入液體，齒輪在出口處不斷嵌入嚙合而將液體擠壓輸出。由于這種*結(jié)構(gòu)，所以特別適用于輸送粘度大的介質(zhì)，粘度范圍為：0.2-1000000cp;
REXROTH內(nèi)嚙合齒輪泵可反向輸送，只要更換電機轉(zhuǎn)向即可；
REXROTH內(nèi)嚙合齒輪泵泵體可轉(zhuǎn)向，進出口位置成直角，便于選配進出口位置；
REXROTH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)的進出接口。
REXROTH內(nèi)嚙合齒輪泵具有：無困油現(xiàn)象、輸送平穩(wěn)、效率高、噪音小，使用壽命廠的優(yōu)點。
REXROTH內(nèi)嚙合齒輪泵適用于輸送石油、化工、涂料、染料、食品、油脂、醫(yī)藥等行業(yè)中的牛頓液體或非牛頓液體，輸送液體的種類可由輕質(zhì)、揮發(fā)性液體，直至重質(zhì)、粘稠，甚至半固態(tài)液體。
REXROTH內(nèi)嚙合齒輪泵的材質(zhì)有鑄鐵，鑄鋼，不銹鋼等
部分型號：
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R901147115 PGH5-3X/063RE11VU2
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