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REXROTH柱塞泵天津代理
閱讀：860 發布時間：2019-1-2REXROTH柱塞泵天津代理 力士樂REXROTH軸向柱塞泵的工作原理所示,當電動機帶動傳動軸旋轉時,泵缸與柱塞一同旋轉,柱塞頭永遠保持與斜盤接觸,因斜盤與缸體成一角度,因此缸體旋轉時,柱塞就在泵缸中做往復運動。以圖l—40的下一柱塞為例,它從0°轉到180°,即轉到上面柱塞的位置,柱塞缸容積逐漸增大,因此液體經配油盤的吸油口a吸人油缸;而該柱塞從180°轉到360°時,柱塞缸容積逐漸減小,因此油缸內液體經配油盤的出口排出液體。只要傳動軸不斷旋轉,泵便不斷地工作。改變傾斜元件的角度,就可以改變柱塞在泵缸內的行程長度,即可改變泵的流量。傾斜角度固定的稱為定量泵,傾斜角度可以改變的便稱為變量泵 REXROTH力士樂軸向柱塞泵與徑向柱塞泵比較,排出壓力高,它一般可在20~50MPa范圍內工作,效率也高,徑向尺寸小、結構緊湊、體積小、重量輕。但結構較徑向柱塞泵復雜,加工制造要求高,價格較貴。軸向柱塞泵一般用于機床、冶金、鍛壓、礦山及起重機械的液壓傳動系統中,特別廣泛地應用于大功率的液壓傳動系統中。為了提率,在應軸向柱塞泵一般都由缸體、配油盤、柱塞和斜盤等主要零件組成。缸體內有多個柱塞,柱塞是軸向排列的,即柱塞的中心線平行于傳動軸的軸線,因此稱它為軸向柱塞泵。但它又不同于往復式柱塞泵,因為它的柱塞不僅在泵缸內做往復運動,而且柱塞和泵缸與斜盤相對有旋轉運動。柱塞以一球形端頭與斜盤接觸。在配油盤上有高低壓月形溝槽,它們彼此由隔墻隔開,保證一定的密封性,它們分別與泵的進油口和出油口連通。斜盤的軸線與缸體軸線之間有一傾斜角度。 R910998825 AEA4VSO125DR/30R-PPB13N00
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