意大利Fluid-o-Tech齒輪泵由一個(gè)獨(dú)立的電機(jī)驅(qū)動(dòng),可有效地阻斷上游的壓力脈動(dòng)及流量波動(dòng)。在齒輪泵出口處的壓力脈動(dòng)可以控制在1%以內(nèi)。在擠出生產(chǎn)線上采用一臺(tái)齒輪泵,可以提高流量輸出速度,減少物料在擠出機(jī)內(nèi)的剪切及駐留時(shí)間。
Fluid-o-Tech外嚙合齒輪泵是應(yīng)用最廣泛的一種齒輪泵,一般齒輪泵通常指的就是外嚙合齒輪泵。它的結(jié)構(gòu)如圖5-14所示,主要有主動(dòng)齒輪、從動(dòng)齒輪、泵體、泵蓋和安全閥等組成。泵體、泵蓋和齒輪構(gòu)成的密封空間就是齒輪泵的工作室。兩個(gè)齒輪的輪軸分別裝在兩泵蓋上的軸承孔內(nèi),主動(dòng)齒輪軸伸出泵體,由電動(dòng)機(jī)帶動(dòng)旋轉(zhuǎn)。外嚙合齒輪泵結(jié)構(gòu)簡(jiǎn)單、重量輕、造價(jià)低、工作可靠、應(yīng)用范圍廣。
齒輪泵工作時(shí),主動(dòng)輪隨電動(dòng)機(jī)一起旋轉(zhuǎn)并帶動(dòng)從動(dòng)輪跟著旋轉(zhuǎn)。當(dāng)吸入室一側(cè)的嚙合齒逐漸分開(kāi)時(shí),吸入室容積增大,壓力降低,便將吸人管中的液體吸入泵內(nèi);吸入液體分兩路在齒槽內(nèi)被齒輪推送到排出室。液體進(jìn)入排出室后,由于兩個(gè)齒輪的輪齒不斷嚙合,使液體受擠壓而從排出室進(jìn)入排出管中。主動(dòng)齒輪和從動(dòng)齒輪不停地旋轉(zhuǎn),泵就能連續(xù)不斷地吸入和排出液體。
泵體上裝有安全閥,當(dāng)排出壓力超過(guò)規(guī)定壓力時(shí),輸送液體可以自動(dòng)頂開(kāi)安全閥,使高壓液體返回吸入管。
MS204YG0PT
MS204YG0TT
MS204YG0GT
MS209XD0PT
MS209XD0PT
MS209XD0TT
MS209XD0GT
MS209XD1PT
MS209XD1TT
MS209XD1GT
MS209XG1PT
MS209XG1TT
MS209XG1GT
MS209XG0PT
MS209XG0TT
MS209XG0GT
MS209SD0PT
MS209SD0TT
MS209SD0GT
MS209SD1PT
MS209SD1TT
MS209SD1GT
MS209SD1PT
MS209SG1PT
MS209SG1TT
Disassembly Instructions Provide a clean surface for work area. Separate the pumphead from the magnet cap. Remove the 3 screws and disassemble front housing, driven gear , central housing and dowel pins . If the pump is equipped with by-pass, make sure not to damage the sealing poppet . Remove the poppet assembly from the adjusting screw (fig. 5), remove the by-pass nut, the adjusting screw turning counter-clockwise, the by-pass washer and the by pass seal from the cap. Remove the screws which secure the magnet cup and the mounting plate to the rear housing and disassemble. Remove and discard all the bushings from the rear housing and the front housing with the bushing extractor tool P/N 60211 (fig.1). Remove seal and flat seals from the rear housing and from the front housing and discard th |