二、双作用叶片泵的工作原理
它的作用原理和单作用叶片泵相似,不同之处只在于定子表面是由两段长半径圆弧、两段短半径圆弧和四段过渡曲线八个部分组成,且定子和转子是同心的。在图示转子顺时针方向旋转的情况下,密封工作腔的容积在左上角和右下角处逐渐增大,为吸油区,在左下角和右上角处逐渐减小,为压油区;吸油区和压油区之间有一段封油区把它们隔开。这种泵的转子每转一转,每个密封工作腔完成吸油和压油动作各两次,称为双作用叶片泵。泵的两个吸油区和两个压油区是径向对称的,作用在转子上的液压力径向平衡,又称为平衡式叶片泵。
双作用叶片泵的瞬时流量是脉动的,当叶片数为4的倍数时脉动率小。为此,双作用叶片泵的叶片数一般都取12或16。
叶片泵的管理要点除需防干转和过载、防吸入空气和吸入真空度过大外,还应注意:
1.泵转向改变,则其吸排方向也改变叶片泵都有规定的转向,不允许反。因为转子叶槽有倾斜,叶片有倒角,叶片底部与排油腔通,配油盘上的节流槽和吸、排口是按既定转向设计。可逆转的叶片泵必须专门设计。2.叶片泵装配配油盘与定子用定位销正确定位,叶片、转子、配油盘都不得装反,定子内表面吸入区部分易磨损,必要时可将其翻转安装,以使原吸入区变为排出区而继续使用。3.拆装注意工作表面清洁,工作时油液应很好过滤。4.叶片在叶槽中的间隙太大会使漏泄增加,太小则叶片不能自由伸缩,会导致工作失常。5.叶片泵的轴向间隙对ηv影响很大。1)小型泵-0.015~0.03mm2)中型泵-0.02~0.045mm6.油液的温度和粘度一般不宜超过55℃,粘度要求在17~37mm2/s之间。粘度太大则吸油困难;粘度太小则漏泄严重。作为泵产品,叶片泵更多地指滑片泵。叶片泵几乎全部指滑片泵。
销售进口油研YUKEN液压阀 液压泵全系列
油研YUKEN叶片泵 原装,质量保证,油研YUKEN江苏办事处 油研YUKEN
(062)A70-LR04BS-60 A70-LR04CS-60 A70-LR04HS-60
(063)A70-LR04KS-60 A90-LR04BS-60 A90-LR04CS-60
(064)A90-LR04HS-60 A90-LR04KS-60 A145-LR04BS-60
(065)A145-LR04CS-60 A145-LR04HS-60 A145-LR04KS-60
(048)PV2R1-14-F-RAA-41 PV2R1-17-F-RAA-41
(049)PV2R1-19-F-RAA-41 PV2R1-23-F-RAA-41
(050)PV2R1-6-F-RAA-41 PV2R1-8-F-RAA-41
(051)PV2R1-28-F-RAA-41 PV2R1-10-F-RAA-41
(052)PV2R1-25-F-RAA-41 PV2R1-6-L-RAA-4222
(053)PV2R1-6-L-LAA-4222 PV2R1-6-L-RAB-4222
(054)PV2R1-6-L-LAB-4222 PV2R1-6-F-LAB-4222
(055)PV2R1-6-F-RAA-4222 PV2R1-6-F-LAA-4222
(056)PV2R1-6-F-RAB-4222 PV2R1-8-F-RAA-4222
(057)PV2R1-8-F-LAA-4222 PV2R1-8-F-RAB-4222
(058)PV2R1-8-F-LAB-4222 PV2R1-8-L-LAA-4222
(059)PV2R1-8-L-RAB-4222 PV2R1-8-L-LAB-4222
(060)PV2R1-8-L-RAA-4222 PV2R1-8-L-LAB-4222
(061)PV2R1-8-F-LAB-4222
(024)PV2R1-10-L-RAA-4222 PV2R1-10-L-LAA-4222 PV2R1-10-L-RAB-4222
(025)PV2R1-10-L-LAB-4222 PV2R1-10-F-LAB-4222 PV2R1-10-F-RAA-4222
(026)PV2R1-10-F-LAA-4222 PV2R1-10-F-RAB-4222 PV2R1-12-L-RAA-4222
(027)PV2R1-12-L-LAA-4222 PV2R1-12-L-RAB-4222 PV2R1-12-L-LAB-4222
(028)PV2R1-12-F-RAA-4222 PV2R1-12-F-LAA-4222 PV2R1-12-F-RAB-4222
(029)PV2R1-12-F-LAB-4222 PV2R1-14-L-RAA-4222 PV2R1-14-L-LAA-4222
(030)PV2R1-14-L-RAB-4222 PV2R1-14-L-LAB-4222 PV2R1-14-F-RAA-4222
(031)PV2R1-14-F-LAA-4222 PV2R1-14-F-RAB-4222 PV2R1-14-F-LAB-4222
(032)PV2R1-17-L-RAA-4222 PV2R1-17-L-LAA-4222 PV2R1-17-L-RAB-4222
(033)PV2R1-17-L-LAB-4222 PV2R1-17-F-RAA-4222 PV2R1-17-F-LAA-4222
(034)PV2R1-17-F-RAB-4222 PV2R1-17-F-LAB-4222 PV2R1-19-L-RAA-4222
(035)PV2R1-19-L-LAA-4222 PV2R1-19-L-RAB-4222 PV2R1-19-L-LAB-4222
(036)PV2R1-19-F-RAA-4222 PV2R1-19-F-LAA-4222 PV2R1-19-F-RAB-4222
(037)PV2R1-19-F-LAB-4222 PV2R1-23-L-RAA-4222 PV2R1-23-L-LAA-4222
(038)PV2R1-23-L-RAB-4222 PV2R1-23-L-LAB-4222 PV2R1-23-F-RAA-4222
(039)PV2R1-23-F-LAA-4222 PV2R1-23-F-RAB-4222 PV2R1-23-F-LAB-4222
(040)PV2R1-25-L-RAA-4222 PV2R1-25-L-LAA-4222 PV2R1-25-L-RAB-4222
(041)PV2R1-25-L-LAB-4222 PV2R1-25-F-RAA-4222 PV2R1-25-F-LAA-4222
(042)PV2R1-25-F-RAB-4222 PV2R1-25-F-LAB-4222 PV2R1-31-L-RAA-4222
(043)PV2R1-31-L-LAA-4222 PV2R1-31-L-RAB-4222 PV2R1-31-L-LAB-4222
(044)PV2R1-31-F-LAB-4222 PV2R1-31-F-RAA-4222 PV2R1-31-F-LAA-4222
(045)PV2R1-31-F-RAB-4222 PV2R1-10-F-RAA-4223 PV2R1-12-F-RAA-4223
(046)PV2R1-14-F-RAA-4223 PV2R1-17-F-RAA-4223 PV2R1-19-F-RAA-4223
(047)PV2R1-23-F-RAA-4223 PV2R1-25-F-RAA-4223 PV2R1-31-F-RAA-4223
日本Nabco(Nabtesco)PSC型气控阀、
日本纳博克Nabco电磁阀
日本Nabco气控阀
日本Nabco手动阀
具体型号为:
日本Nabtesco气控阀PSC-32-P
日本Nabtesco气控阀PSC-33-P
日本Nabtesco气控阀PSC-34-P
日本Nabtesco气控阀PSC-36-P
日本Nabtesco气控阀PSC-38-P
日本Nabco气控阀PSC-43-P
日本Nabco气控阀PSC-44-P
日本Nabco气控阀PSC-46-P
日本Nabco气控阀PSC-48-P
日本Nabco气控阀PSC-36-L
日本Nabco气控阀PSC-38-L
日本Nabco气控阀PSC-43-L
日本Nabco气控阀PSC-46-L
日本Nabco气控阀PSC-48-L
等日本NABCO电磁阀、NABCO气动滑阀
NABCO液压泵、NABCO分油器 NABCO空压机
NABCO油压机、 NABCO刹车阀、NABCO安全阀
NABCO气动换向阀、NABCO液压马达、NABCO操纵阀
NABCO空气干燥器、NABCO密封件 NABCO管件
日本Nabtesco电磁阀
日本Nabtesco气动滑阀
日本Nabtesco液压泵
日本Nabco 电磁阀
日本Nabco 气控阀
日本Nabco 手动阀
日本Nabco电磁阀