高压泵的容积效率在80%以上,压力损失仅为2%~3%液压泵是一种能量传递和转换的机器,它是一种以液体为介质的输送机它使流体机械能有效地进行压力和流量特性曲线改变 1、液压泵的结构组成 液压泵由主油缸、传动系统、密封装置、液压缸、柱塞泵等部分组成。
主油缸的作用是使压力油在活塞下行过程中形成容积运动,从而实现液体流体在缸内的单向流动它由主油压腔、溢流腔、油液换向器、过滤器、油口、滤油网等组成"油室"指泵出口与阀芯,它是密封元件,是与油路直接连通起来的结构体,以保证润滑油能够顺利地进入泵腔。
根据润滑油粘度等级的不同,又分为无级变速油、低粘度油、中温油及低速油路等各种类型的油其中又分为无内燃机油和有润滑油内燃机油以及普通汽油液压泵是以压缩气体作为动力源的机械装置根据所输送液体以及流体速度及流量来确定工作压力和扬程。
压力越大则输出压力越大;通常为5-10MPa;最大为30MPa;最小值不大于0.1MPa 2、液压泵工作原理和用途 液压泵由进油口和出油口组成,其作用是将液压油或润滑油)从进油口注入液压缸,内的油液在缸内产生轴向力推动活塞杆向前运动,同时在腔内产生反作用力带动活塞杆作往复运动,通过活塞杆推动液体作动力而实现液体压力及流量变换输出能量的一种机械传动装置。
液压泵能传递液体动能,在有动力带动下通过压杆使活塞杆向后运动而实现液体在缸内的往复运动从而达到推动液体的目的,当液体进入液压缸后,泵体开始对其进行回路调节以达到液体的流动状态液体介质在流经活塞时沿缸壁做圆周运动,使泵内压力急剧升高,形成正压,经液体出口时带动活塞作往复运动,由于活塞受力而产生反作用力使活塞杆向前推动液体向前运动从而使压力增高,使液体达到压力和流量变化曲线并形成曲线运动即压力损失越大。
液压泵按性能又可分为油泵和液压泵两大类 90-R-055-KP-1-AB-60-L-3-S1-C-03-GBA-35-35-24 90R055KP1AB60L3S1C03GBA353524 90-R-055-KP-1-AB-60-L-3-S1-C-03-GBA-42-42-24 90R055KP1AB60L3S1C03GBA424224 90-R-055-KP-1-AB-60-L-3-S1-D-03-GBA-42-42-24 90R055KP1AB60L3S1D03GBA424224 90-R-055-KP-1-AB-60-P-3-C6-C-03-GBA-35-35-24 90R055KP1AB60P3C6C03GBA353524 90-R-055-KP-1-AB-60-R-3-S1-C-03-GBA-42-42-24 90R055KP1AB60R3S1C03GBA424224 90-R-055-KP-1-AB-60-S-3-S1-C-00-GBA-17-17-20 90R055KP1AB60S3S1C00GBA171720 90-R-055-KP-1-AB-60-S-3-S1-C-03-GBA-26-26-24 90R055KP1AB60S3S1C03GBA262624 90-R-055-KP-1-AB-60-S-3-S1-D-00-GBA-17-17-20 90R055KP1AB60S3S1D00GBA171720 90-R-055-KP-1-AB-80-P-3-S1-C-00-GBA-42-42-24 90R055KP1AB80P3S1C00GBA424224 90-R-055-KP-1-AB-80-P-3-S1-C-03-GBA-20-20-24 90R055KP1AB80P3S1C03GBA202024 90-R-055-KP-1-AB-80-P-3-S1-D-00-GBA-26-26-24 90R055KP1AB80P3S1D00GBA262624 90-R-055-KP-1-AB-80-P-3-S1-D-03-EBC-32-32-24 90R055KP1AB80P3S1D03EBC323224 90-R-055-KP-1-AB-80-P-3-S1-D-03-GBA-29-29-24 90R055KP1AB80P3S1D03GBA292924 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