共查询到19条相似文献,搜索用时 93 毫秒
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KZB轴向柱塞泵系列研究及型号燕山大学潘景升,闻德生哈尔滨计经委于勇,李赞英KZB轴向柱塞泵是根据燕山大学的发明专利《双端面配油开路式轴向柱塞泵》技术形成的一类新型系列泵,其工作原理简目如图1所示,自冷却原理简图如图2所示。端面配油全开路式轴向柱塞泵... 相似文献
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斜轴泵的试验模态分析 总被引:2,自引:0,他引:2
斜轴泵的试验模态分析高天方,殷祥超,陆梅斜轴式轴向柱塞泵是矿山机械中的关键部件,它的故障将直接影响整个机械设备的正常工作。本文利用试验模态分析技术对ZB-107斜轴式轴向柱塞泵的摆缸壳部分进行结构动力分析,得到泵的结构模态参数(包括固有频率、模态振型... 相似文献
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斜轴式轴向柱塞泵具有效率高、压力高、排量范围大等优点,但变量机构复杂,体积庞大。近年来国外出现一种新型斜轴式泵,采用全新的变量机构,在保留斜轴式泵的基本优点的前提下实现了小型化。本文介绍斜轴式轴向柱塞泵的国内现状和国外某些新发展。 相似文献
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轴向柱塞泵滑靴柱塞结构分析 总被引:1,自引:0,他引:1
轴向柱塞泵滑靴柱塞结构分析田国瑞一、前言如图1所示.常用的CY型轴向柱塞泵滑靴柱塞的优点很多.但与图2所示的开路式泵的滑靴柱塞结构相比.经生产试验验证和用户使用证明、开路式泵的滑靴柱塞结构明显优于CY型泵滑靴柱塞结构:它图1CY型轴向拉塞泵滑靴柱塞结... 相似文献
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通过试验数据和结构分析等介绍了新型轴向柱塞泵所作的改进,由于采用了一系列与传统柱塞泵不同的独特设计,有效地提高了各项性能指标。实践证明该泵是一种结构新颖、设计合理的新一代轴向柱塞泵。 相似文献
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用超轻型柱塞泵与叶片泵竞争徐绳武图3美国Sundstrand公司20系列通轴泵(马达)22滑靴式(不通轴)轴向泵静液压平衡滑靴的出现是斜盘式轴向泵发展史上的重大突破,它使这类泵参数提高产生了飞跃。最早采用滑靴的是美国Denison泵(图2)。我国... 相似文献
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轴向柱塞泵作为液压设备的动力源,其性能的好坏直接影响整个液压系统.压力脉动系数是衡量轴向柱塞泵的重要性能指标.长期过高的脉动幅值将导致管路系统和液压元器件的振动和损坏.近年出现的新型双列柱塞泵利用柱塞列数的增加对系统进行二次变量,依靠内外两列柱塞的交叉排列使系统的压力脉动成倍下降.该论文在借鉴对现有轴向柱塞泵研究的基础上,根据新型双列泵的原理和特点,重点对新型双列柱塞泵进行了理论计算分析、主要零部件的设计和优化. 相似文献
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A study on the pressure ripple characteristics in a bent-axis type oil hydraulic piston pump 总被引:1,自引:0,他引:1
To improve the performance of a bent-axis type axial piston pump driven by tapered pistons, it is necessary to know the pressure ripple characteristics. The purpose of this paper is to understand the effect on the pressure ripple characteristics, and to predict by comparing experimental and theoretical analysis results. The simulation model of a bent-axis type axial piston pump is developed in the AMESim environment using the geometrical dimension, and the driving mechanism of the piston pump, such as the stroke of pump, the velocity of piston, the instantaneous volumetric flow, the overlap area of valve plate opening to cylinder bore, the angle of notch, and so on. The results show that theoretical analysis results of the bent-axis type axial piston pump by using the AMESim approximate the pressure ripple characteristic of the test pump, and through this, simulations can be obtained that predict the performance characteristics of a bentaxis type axial piston pump. 相似文献
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YANG Jian College of Urban Railway Transportation Shanghai University of Engineering Science Shanghai China XU Bing YANG Huayong State Key Laboratory of Fluid Power Transmission Control Zhejiang University Hangzhou China 《机械工程学报(英文版)》2006,19(1):120-123
The noise identification model of the neural networks is established for the 63SCY14-1B hydraulic axial piston pump. Taking four kinds of different port plates as instances, the noise identification is successfully carried out for hydraulic axial piston pump based on experiments with the MATLAB and the toolbox of neural networks. The operating pressure, the flow rate of hydraulic axial piston pump, the temperature of hydraulic oil, and bulk modulus of hydraulic oil are the main parameters having influences on the noise of hydraulic axial piston pump. These four parameters are used as inputs of neural networks, and experimental data of the noise are used as outputs of neural networks. Error of noise identification is less than 1% after the neural networks have been trained. The results show that the noise identification of hydraulic axial piston pump is feasible and reliable by using artificial neural networks. The method of noise identification with neural networks is also creative one of noise theoretical research for hydraulic axial piston pump. 相似文献
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Il-Hyun Baek Ihn-Sung Cho Jae-Youn Jung Lu Hong 《Journal of Mechanical Science and Technology》2008,22(9):1726-1733
To improve the performance of the bent-axis type axial piston pump driven by the tapered piston, it is necessary to know the
driving characteristics and mechanism of the tapered piston and the cylinder block. Since each piston not only rotates on
its axis and reciprocates in the cylinder bore but also revolves around the axis of the driving shaft, it is difficult to
analyze the driving mechanism theoretically. The theoretical mechanism for the bent-axis type axial piston pump is studied
by using the geometrical method. The driving range of the tapered piston is determined by theoretical equations. The results
show that the cylinder block is driven by one tapered piston in a limited range and the core parameters such as the tilting
angle of the piston and the ahead delay angle influence performance of the bent-axis type axial piston pump. 相似文献
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为了研究双排式轴向柱塞泵的流量脉动特性,对双排式轴向柱塞泵柱塞的排列方式进行了分类,列写流量方程并计算不同错位角下柱塞泵的流量不均匀系数,分析柱塞排列方式和错位角的变化对双排式轴向柱塞泵流量脉动特性的影响。研究发现内外排柱塞数相同且同为奇数时,改变错位角得到的最小流量不均匀系数小于同等柱塞数的单排式轴向柱塞泵的流量不均匀系数,双排式轴向柱塞泵的流量脉动特性得到显著改善。同时还发现内外排柱塞数均为5,且错位角为π/10的双排式轴向柱塞泵具有较小的流量脉动,是一种比较理想的选择。 相似文献
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