A4VSO250DR/30R-PPB13N00
A4VSO250DR/30R-PPB13N00
武汉耀泰机电设备有限公司
联系人：韩先生
QQ： 2848200056
电话：027-87781613
手机：15377636052
传真：027-87781567
武汉耀泰供应力士乐，万福乐，ASCO，ATOS，SMC,威格士等进口品牌液压泵、液压阀、气动阀、液压缸等全系列产品
交易方式：德邦代收、淘宝链接（支付宝担保交易）、预付款交易等等
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A10VSO28DR/31R-PPA12N00
A10VSO28DFR1/31R-PSC12N00
轴向柱塞泵（英文名：Piston pump）
是活塞或柱塞的往复运动方向与缸体中心轴平行的柱塞泵。
轴向柱塞泵利用与传动轴平行的柱塞在柱塞孔内往复运动所
产生的容积变化来进行工作的。由于柱塞和柱塞孔都是圆形零件，
加工时可以达到很高的精度配合，因此容积效率高。
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柱塞泵是液压系统的一个重要装置。
它依靠柱塞在缸体中往复运动，
使密封工作容腔的容积发生变化来实现吸油、压油。
柱塞泵具有额定压力高、结构紧凑、效率高和流量
调节方便等优点，被广泛应用于高压、大流量和流量
需要调节的场合，诸如液压机、工程机械和船舶中。
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A10VSO100DR/31R-PPA12N00
A10VSO100DFLR/31R-PPA12N00
轴向柱塞泵（英文名：Piston pump）
是活塞或柱塞的往复运动方向与缸体中心轴平行的柱塞泵。
轴向柱塞泵利用与传动轴平行的柱塞在柱塞孔内往复运动
所产生的容积变化来进行工作的。由于柱塞和柱塞孔都是
圆形零件，加工时可以达到很高的精度配合，因此容积效率高。
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A10VSO18DR/31R-PPA12N00
A10VSO18DFR1/31R-PPA12N00
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A10VSO18DFR1/32R-VPB12N00
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A10V028DR/31R-PSC12N00
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以上
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液压柱塞泵靠气压供油的液压油箱，
在每次启动机器后，必须等液压渍箱达
到使用气压后，才能操作机械。直轴斜
盘式柱塞泵分为压力供油型的自吸油型
两种。压力供油型液压泵大都采用有气
压的油箱，也有液压泵本身带有补油分
泵向液压泵进油口提供压力油的。
自吸油型液压泵的自吸油能力很强，无需外力供油。
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液压柱塞泵靠气压供油的液压油箱，
在每次启动机器后，必须等液压渍箱
达到使用气压后，才能操作机械。
直轴斜盘式柱塞泵分为压力供油型的
自吸油型两种。压力供油型液压泵大
都采用有气压的油箱，也有液压泵本
身带有补油分泵向液压泵进油口提供压
力油的。自吸油型液压泵的自吸油能力很强，无需外力供油。
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柱塞泵柱塞往复运动总行程L是不变的，
由凸轮的升程决定。柱塞每循环的供油
量大小取决于供油行程,供油行程不受
凸轮轴控制是可变的。供油开始时刻不
随供油行程的变化而变化。转动柱塞可
改变供油终了时刻，从而改变供油量。
柱塞泵工作时，在喷油泵凸轮轴上的凸
轮与柱塞弹簧的作用下，迫使柱塞作上、
下往复运动，从而完成泵油任务，泵油
过程可分为以下三个阶段。
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柱塞泵柱塞往复运动总行程L是不变的，
由凸轮的升程决定。柱塞每循环的供油
量大小取决于供油行程,供油行程不受
凸轮轴控制是可变的。供油开始时刻不
随供油行程的变化而变化。转动柱塞
可改变供油终了时刻，从而改变供油量。
柱塞泵工作时，在喷油泵凸轮轴上的凸轮
与柱塞弹簧的作用下，迫使柱塞作上、
下往复运动，从而完成泵油任务，
泵油过程可分为以下三个阶段。
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当凸轮的凸起部分转过去后，
在弹簧力的作用下，柱塞向下运动，
柱塞上部空间（称为泵油室）产生真空度，
当柱塞上端面把柱塞套上的进油孔打开后，
充满在油泵上体油道内的柴油经油孔进入
泵油室，柱塞运动到下止点，进油结束
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柱塞向上供油，当上行到柱塞上的斜槽
（停供边）与套筒上的回油孔相通时，
泵油室低压油路便与柱塞头部的中孔和
径向孔及斜槽沟通，油压骤然下降，
出油阀在弹簧力的作用下迅速关闭，
停止供油。此后柱塞还要上行，
当凸轮的凸起部分转过去后，
在弹簧的作用下，柱塞又下行。
此时便开始了下一个循环。
柱塞泵以一个柱塞为原理介，
一个柱塞泵上有两个单向阀，
并且方向相反，柱塞向一个方向
运动时缸内出现负压，这时一个
单向阀打开液体被吸入缸内，
柱塞向另一个方向运动时，
将液体压缩后另一个单向阀被打开，
被吸入缸内的液体被排出。
这种工作方式连续运动后就形成了连续供油 。
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柱塞泵最重要的部件是轴承，
如果轴承出现游隙，则不能
保证液压泵内部三对磨擦副的
正常间隙，同时也会破坏各
磨擦副的静液压支承油膜厚度，
降低柱塞泵轴承的使用寿命。
据液压泵制造厂提供的资料，
轴承的平均使用寿命为10000h，
超过此值就需要更换新口。
拆卸下来的轴承，没有专业
检测仪器是无法检测出轴承的
游隙的，只能采用目测，
如发现滚柱表面有划痕或变色，
就必须更换
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