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公 司:上海申思特自动化设备有限公司
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美国威格士VICKERS柱塞泵原理 |
发布日期:[2011-11-29] 共阅[1517]次 |
美国威格士VICKERS柱塞泵原理柱塞每一次循环的供油量的大小取决于供油行程,供油行程是可变的,供油开始是 时刻不随供油行业的变化而变化,转动柱塞可以改变供油终了时刻,从而改变供油量。在柱 塞泵工作时,在凸轮和柱塞弹簧的作用下,迫使柱塞上下往复运动,从而完成柱塞泵的三个 工作过程,即:进油过程、供油过程、回油过程。 进油过程:当凸轮的凸起部分转过去以后,在柱塞弹簧的作用力下,柱塞会向下运动, 这时柱塞的上部空间产生真空度, 当柱塞上端面把柱塞套上的进油孔打开以后, 充满在柱塞 泵上体油道内的液体经进油孔进入柱塞上部空间, (上部真空空间也叫泵油室),当柱塞运 动到下卡点时,进油过程结束。 供油过程:当凸轮轴转到凸轮的凸起部分时,凸轮体被顶起,柱塞弹簧被压缩,柱塞受 弹簧的反作用力后向上运动,燃油受压,这时会有一部分燃油经油孔流回喷油泵上体油腔。 当柱塞顶面遮住套筒上的进油孔上缘时,由于柱塞和套筒之间的配合间隙很小很小,(在 0.0015 到 0.0025mm 之间)使柱塞顶部的柱塞泵油室成为一个密封的油腔,这时柱塞在弹簧 的作用力下继续上升, 柱塞泵油室内的油压迅速升高, 当柱塞泵油压力大于出油阀弹簧力和 高压油管剩余压力时,出油阀被推开,高压油经过出油阀进入高压油管,然后通过喷油器喷 入燃烧室。供油过程结束。 回油过程: 当柱塞向上供油上升到柱塞的斜槽与套筒上的回油孔相通时, 柱塞泵油室低 压油路便和柱塞头部的中孔和径向孔及斜槽沟通, 油压突然下降, 这时出油阀在弹簧力的作 用下迅速关闭,回油过程结束。然后柱塞还要上行,当凸轮的凸起部分转过去以后,在柱塞 弹簧的作用力下柱塞再次下行。这时又开始了下一个循环。 :望,:, 地址:上海市黄浦区北京东路668号科技京城东楼20楼C2室 美国威格士VICKERS柱塞泵原理也许您还关注齿轮泵网的这些文章:齿轮泵工作原理 离心泵工作原理 单级离心泵工作原 理 水泵工作原理 螺杆泵工作原理 潜污泵工作原理 轴向柱塞泵的工作原理和性能特点 轴向柱塞泵一般都由缸体、配油盘、柱塞和斜盘等主要零件组成(图 1-40)。 缸体内有多个柱塞,柱塞是轴向排列的,即柱塞的中心线平行于传动轴的轴线, 因此称它为轴向柱塞泵。但它又不同于往复式柱塞泵,因为它的柱塞不仅在泵缸 内做往复运动,而且柱塞和泵缸与斜盘相对有旋转运动。柱塞以一球形端头与斜 盘接触。在配油盘上有高低压月形沟槽,它们彼此由隔墙隔开,保证一定的密封 性,它们分别与泵的进油口和出油口连通。 斜盘的轴线与缸体轴线之间有一倾斜 角度。 轴向柱塞泵的工作原理如图 l—40 所示,当电动机带动传动轴旋转时,泵缸 与柱塞一同旋转,柱塞头永远保持与斜盘接触,因斜盘与缸体成一角度,因此缸 体旋转时,柱塞就在泵缸中做往复运动。以图 l—40 的下一柱塞为例,它从 0° 转到 180°,即转到上面柱塞的位置,柱塞缸容积逐渐增大,因此液体经配油盘 的吸油口 a 吸人油缸;而该柱塞从 180°转到 360°时,柱塞缸容积逐渐减小, 因此油缸内液体经配油盘的出口排出液体。只要传动轴不断旋转,泵便不断地工 作。 改变倾斜元件的角度,就可以改变柱塞在泵缸内的行程长度,即可改变泵的 流量。 :望,:, 地址:上海市黄浦区北京东路668号科技京城东楼20楼C2室 美国威格士VICKERS柱塞泵原理倾斜角度固定的称为定量泵,倾斜角度可以改变的便称为变量泵。 轴向柱塞泵根据倾斜元件的不同,有斜盘式和斜轴式两种。 斜盘式是斜盘相对回转的缸体有一倾斜角度,而引起柱塞在泵缸中往复运 动。传动轴轴线和缸体轴线是一致的。这种结构较简单,转速较高,但工作条件 要求高,柱塞端部与斜盘的接触部往往是薄弱环节。斜轴式的斜盘轴线与传动轴 轴线是一致的。它是由于柱塞缸体相对传动轴倾斜一角度而使柱塞作往复运动。公司名称:上海颖哲工业自动化设备有限公司 : 委托代理:望贤会 税号:310226791485648 开户行:上海银行愚园路支行 帐号:3164 1803 0001 12363 流量调节依靠摆动柱塞缸体的角度来实现, 故有的又称摆缸式。 它与斜盘式相比, 工作可靠,流量大,但结构复杂。 轴向柱塞泵与径向柱塞泵比较,排出压力高,它一般可在 20~50MPa 范围 内工作,效率也高,径向尺寸小、结构紧凑、体积小、重量轻。但结构较径向柱 塞泵复杂,加工制造要求高,价格较贵。 轴向柱塞泵一般用于机床、 冶金、 锻压、 矿山及起重机械的液压传动系统中, 特别广泛地应用于大功率的液压传动系统中。为了提率,在应用时还通常用 齿轮泵或滑片泵作为辅助油泵, 用来给油, 弥补漏损及保持油路中有一定的压力 :望,:, 地址:上海市黄浦区北京东路668号科技京城东楼20楼C2室美国威格士VICKERS柱塞泵常用型号如下:PVH057R01AA10A25000000200100010A PVH57C-RSF-1S-10-C25-31 PVH057R51AA10A25000000200100010A PVH57C-RSF-1S-10-C25-31-027 PVH057R01AA10B25200000200100010A PVH57C-RSF-1S-10-C25V-31 PVH057R02AA10B252000002002AA010A PVH57C-RSF-2D-11-C25V-31 PVH057R02AA10A25000000200100010A PVH57C-RSF-2S-10-C25-31 PVH057R02AA10A250000002001AA010A PVH57C-RSF-2S-11-C25-31-CD PVH057R02AA10B252000002001AA010A PVH57C-RSF-2S-11-C25V-31 PVH057R51AA10E252004001AE1AE010A PVH57QIC2-RAF-1S-11-C25VT4-31 PVH057R51AA10A250000001001AE010A PVH57QIC2-RF-1S-11-C25-31 PVH057R51AA10B252000001001AE010A PVH57QIC2-RF-1S-11-C25V-31 PVH057R51AA10A070000001001AF010A PVH57QIC2-RF-1S-11-CM7-31 PVH057R51AA10A250000002001AE010A PVH57QIC2-RSF-1S-11-C25-31 PVH057R01AA50E252004001AE1AE010A PVH57QIC3-RAF-1S-11-C25VT4-31 PVH057R01AA50B072000001AE1AE010A PVH57QIC3-RAF-1S-11-CM7V-31 PVH057R02AA50E252004001AE1AE010A PVH57QIC3-RAF-2S-11-C25VT4-31 PVH057R01AA50A070000002001AE010A PVH57QIC3-RSF-1S-11-CM7-31 PVH057L01AA10B252000001AE1AB010A PVH57QIC-LAF-1S-10-C25V-31 PVH057L01AA10A250000001AE1AE010A PVH57QIC-LAF-1S-11-C25-31 PVH057L02AA10H002000AW1AE1AB010A PVH57QIC-LAF-2S-10-IC-31-CD PVH057L02AA10B252000001AE1AE010A PVH57QIC-LAF-2S-11-C25V-31-CD PVH057L01AA10A250000001001AB010A PVH57QIC-LF-1S-10-C25-31 PVH057L01AA10B252000001001AB010A PVH57QIC-LF-1S-10-C25V-31 PVH057L01AA10E252004001001AE010A PVH57QIC-LF-1S-11-C25VT4-31 PVH057L02AA10A250000001001AB010A PVH57QIC-LF-2S-10-C25-31 PVH057L02AA10B252000001001AB010A PVH57QIC-LF-2S-10-C25V-31 PVH057L52AA10B252000001001AB010A PVH57QIC-LF-2S-10-C25V-31-027 PVH057L02AA10A070000001001AE010A PVH57QIC-LF-2S-11-CM7-31-CD PVH057L52AA10H002000AW2001AB010A PVH57QIC-LSF-2S-10-IC-31-027 PVH057R01AA10A140000001AE1AB010A PVH57QIC-RAF-1S-10-C14-31 PVH057R01AA10B142000001AE1AB010A PVH57QIC-RAF-1S-10-C14V-31 PVH057R01AA10B162000001AE1AC010A PVH57QIC-RAF-1S-10-C16V-31-091 PVH057R01AA10A250000001AE1AB010A PVH57QIC-RAF-1S-10-C25-31 PVH057R01AA50A250000001AE1AB010A PVH57QIC-RAF-1S-10-C25-31-057 PVH057R01AA10B252000001AE1AB010A PVH57QIC-RAF-1S-10-C25V-31 PVH057R51AA10B252000001AE1AB010A PVH57QIC-RAF-1S-10-C25V-31-027 PVH057R01AA10A070000001AE1AC010A PVH57QIC-RAF-1S-10-CM7-31 PVH057R01AA10B072000001AE1AB010A PVH57QIC-RAF-1S-10-CM7V-31 PVH057R01AA10H002000AW1AE1AB010A PVH57QIC-RAF-1S-10-IC-31 PVH057R01AA10B142000001AE1BC010A PVH57QIC-RAF-1S-11-C14V-31-CD-115 PVH057R01AA10A250000001AE1AE010A PVH57QIC-RAF-1S-11-C25-31 PVH057R01AA10D250004001AE1AE010A PVH57QIC-RAF-1S-11-C25T4-31 PVH057R01AA10B252000001AE1AF010A PVH57QIC-RAF-1S-11-C25V-31 PVH057R01AA10E252004001AE1AE010A PVH57QIC-RAF-1S-11-C25VT4-31 PVH057R01AA10J002004AW1AE1AE010A PVH57QIC-RAF-1S-11-ICT4-31 PVH057R02AA10A140000001AE1AC010A PVH57QIC-RAF-2S-10-C14-31 PVH057R02AA10B162000001AE1AC010A PVH57QIC-RAF-2S-10-C16V-31-091 PVH057R02AA10A250000001AE1AB010A PVH57QIC-RAF-2S-10-C25-31 PVH057R02AA10B252000001AE1AB010A PVH57QIC-RAF-2S-10-C25V-31 PVH057R02AA10A070000001AE1AB010A PVH57QIC-RAF-2S-10-CM7-31 PVH057R02AA10H002000AW1AE1AB010A PVH57QIC-RAF-2S-10-IC-31 PVH057R02AA10A250000001AE1AE010A PVH57QIC-RAF-2S-11-C25-31 PVH057R02AA10E252004001AE1AE010A PVH57QIC-RAF-2S-11-C25VT4-31 PVH057R02AA10A070000001AE1AF010A PVH57QIC-RAF-2S-11-CM7-31 PVH057R01AA10B142000001AK1AE010A PVH57QIC-RBF-1S-11-C14V-31-CD PVH057R01AB10B161400001AY1AC010A PVH57QIC-RBM-1S-10-C16V14-31-092 PVH057R01AB10E252018001AK1AE010A PVH57QIC-RBM-1S-11-C25VT18-31 PVH057R01AA10A250000001AN1AB010A PVH57QIC-RCF-1S-10-C25-31 PVH057R01AA10B252000001AN1AB010A PVH57QIC-RCF-1S-10-C25V-31 PVH057R02AA10B252000001AN1AE010A PVH57QIC-RCF-2S-11-C25V-31-CD PVH057R01AA10A120000AG1001AB010A PVH57QIC-RF-1S-10-C12-31 PVH057R01AA10A140000001001AC010A PVH57QIC-RF-1S-10-C14-31 PVH057R01AA10B162000001001AB010A PVH57QIC-RF-1S-10-C16V-31 PVH057R01AA10B162000001001AC010A PVH57QIC-RF-1S-10-C16V-31-091 PVH057R01AA10A250000001001AB010A PVH57QIC-RF-1S-10-C25-31 PVH057R51AA10A250000001001AB010A PVH57QIC-RF-1S-10-C25-31-027 PVH057R01AA50A250000001001AB010A PVH57QIC-RF-1S-10-C25-31-057 PVH057R01AA10A250000001001AW010A PVH57QIC-RF-1S-10-C25-31-115公司名称:上海颖哲工业自动化设备有限公司 : 委托代理:望贤会 税号:310226791485648 开户行:上海银行愚园路支行 帐号:3164 1803 0001 12363 PVH057R01AA10B252000001001AB010A PVH57QIC-RF-1S-10-C25V-31 PVH057R01AA50B252000001001AB010A PVH57QIC-RF-1S-10-C25V-31-057 PVH057R01AA10A070000001001AC010A PVH57QIC-RF-1S-10-CM7-31 PVH057R01AA10H002000AW1001AB010A PVH57QIC-RF-1S-10-IC-31 PVH057R01AA50H002000AW1001AB010A PVH57QIC-RF-1S-10-IC-31-057 PVH057R01AA10H002000BG1001AB010A PVH57QIC-RF-1S-10-IC-31-081 PVH057R01AA10A130000AG1001AE010A PVH57QIC-RF-1S-11-C13-31 PVH057R01AA10D170014001001AE010A PVH57QIC-RF-1S-11-C17T14-31-CD PVH057R01AA10D190012001001AE010A PVH57QIC-RF-1S-11-C19T12-31 PVH057R01AA10E202010001001AE010A PVH57QIC-RF-1S-11-C20VT10-31 PVH057R01AA10A250000001001AF010A PVH57QIC-RF-1S-11-C25-31 PVH057R01AA10D250004001001AE010A PVH57QIC-RF-1S-11-C25T4-31 PVH057R01AA10B252000001001AE010A PVH57QIC-RF-1S-11-C25V-31 PVH057R01AA10B252000001001BC010A PVH57QIC-RF-1S-11-C25V-31-115 PVH057R01AA10E252020001001AE010A PVH57QIC-RF-1S-11-C25VT20-31-CD PVH057R01AA10E252004001001AE010A PVH57QIC-RF-1S-11-C25VT4-31 PVH057R01AA10E252008001001AE010A PVH57QIC-RF-1S-11-C25VT8-31 PVH057R01AA10A070000001001AE010A PVH57QIC-RF-1S-11-CM7-31-CD PVH057R01AA10B072000001001AE010A PVH57QIC-RF-1S-11-CM7V-31-CD PVH057R01AA10J002004AW1001AE010A PVH57QIC-RF-1S-11-ICT4-31 PVH057R02AA10A250000001002AB010A PVH57QIC-RF-2D-10-C25-31 PVH057R02AA10B252000001002AB010A PVH57QIC-RF-2D-10-C25V-31 PVH057R02AA10E282016001002AE010A PVH57QIC-RF-2D-11-C28VT16-31
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