B&K Precision數(shù)顯直流電源1621A
B&K Precision 1623A
齒輪的翻轉(zhuǎn)運(yùn)用齒輪泵齒輪磨損首要是在齒厚部位,而齒輪端面和齒頂?shù)哪p都相對較輕。齒輪在齒厚部位都是單側(cè)磨損,所以可將齒輪翻轉(zhuǎn)180度運(yùn)用。當(dāng)齒輪端面磨損時(shí),可將端面磨平,還研磨潤滑油泵殼體連系面,以包管齒輪端面與泵蓋的空地在標(biāo)準(zhǔn)限制內(nèi)。布赫齒輪泵的檢修步驟:拆開拆開前應(yīng)做好充分的準(zhǔn)備工作。
熟悉設(shè)備結(jié)構(gòu),工藝流程,運(yùn)轉(zhuǎn)狀態(tài);拆開時(shí)應(yīng)小心翼翼,避免損壞設(shè)備零部件。復(fù)查數(shù)據(jù)對齒輪泵各部件配合空隙,應(yīng)做全面查看,部分空隙的標(biāo)準(zhǔn)見表。查看對拆下的零部件進(jìn)行具體查看,對齒輪作上色查看,不答應(yīng)存在裂紋;軸頸的圓錐度合格,表面不得有劃痕,粗糙度Ra的大答應(yīng)值為1.6μm;端蓋、托架、泵體不得有明顯缺陷。
修正或替換對超標(biāo)的零部件應(yīng)予以替換,對需修正的零部件,修正后應(yīng)符合標(biāo)準(zhǔn)。組裝及調(diào)整齒輪端面與端蓋,托架的軸向空隙,依托改動端蓋,托架與泵體之間的密封墊片的厚度來調(diào)整;緊固端蓋螺栓時(shí),用力對稱均勻,邊緊邊盤動轉(zhuǎn)子,遇到轉(zhuǎn)子轉(zhuǎn)不動時(shí),應(yīng)松掉螺栓重緊;加填料或裝油封時(shí),緊壓蓋時(shí)仍需邊緊邊盤動轉(zhuǎn)子。
不可緊得過死。試車水壓試驗(yàn)為工作壓力的1.5倍,堅(jiān)持5min不漏,試車運(yùn)轉(zhuǎn)期間,無泄漏,運(yùn)轉(zhuǎn)聲響正常,無反常振動,出口壓力符合要求為合格。布赫BUCHER齒輪泵的維修辦法:齒輪泵軸磨損后的修補(bǔ)齒輪泵中軸的磨損主要是因?yàn)檩S兩頭與支撐滾針間的沖突磨損,使軸徑變小。假如是細(xì)微磨損,可通過鍍一層硬鉻來加大此部位軸的直徑尺度。
使軸得到修正。假如軸磨損嚴(yán)峻,則應(yīng)45鋼或40cr鋼從頭制作,軸毛坯經(jīng)粗、精車后,軸承部位要熱處理,硬度為hrc60-65,然后再經(jīng)磨削,使軸承合作部位外表粗糙度ra不大于0.32μm;軸的圓度和圓柱度允差為0.005mm;與齒輪合作部位按h7/h外表粗糙度ra應(yīng)不大于0.63μm。
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