Developmental Research on a High pRessure Piston Pump for High Water Base Fluid

高水基液高压柱塞泵的研制

• 批准号: 61850032
• 负责人: YAMAGUCHI Atsushi
• 金额: $ 2.75万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-61850032/
• 关键词: Fluid Power Components; Piston Pump; High Water Base Fulids; Fuluid Lubrication; Performance Analysis; Performance Test; 設計法; 静圧軸受; 油圧ポンプ

The project aims at developing and performance studying of a piston pump for high water base fluid (concentration of water is 95-98%). The maximum delivery pressure of the pump is 25 MPa and the rotational speed is 1800 rpm.A design method for fluid iubrication between a valve plate and a cylinder block was developted. The method contains a considferation of spring effects of the pump shaft. By using this design method, dimensions of the hydeostatic pad were determined to minimize power loss. Since the swash plate angle was 16゜, it was considered that the slipper bearing did not become basic problem. A theroretical analysis on the lubrication between the piston and the cylinder showed that complete fluid lubrication was difficuly to realized with ordinary piston dimension. For this reason. Power losses of the friction and the leakage flow rate for the rtested piston which came in contack with cylinder were analyzed and compared with the experimental results.Performance tests of the developed pump were conducted with high water base fluid of emulsion type as test luquid. The rotational speed was in the tange of 800-2000 rpm and the delivery pressure was up to 25 MPa. The performance tests showed taht the drain did not depend very much on the rotational speed and most of ithe dratin was leakage flow rate between the pistons and the cylinders. These results indicate that the pump operates in the condition assumed in the theoretical analysis. Damages if the sliding parts after the performance tests were trigling.Fucther investigations on the lubrication between a piston and a cylinder is necessary. However, it is considered that the expected results of the project are obtained.

该项目旨在开发和性能研究，用于高水基流体的活塞泵（水的浓度为95-98％）。泵的最大递送压力为25 MPa，旋转速度为1800 rpm。开发了阀板之间的流体iBricrication设计方法，并开发了气缸块。该方法包含泵轴弹簧效应的掺入。通过使用这种设计方法，确定了静态垫的尺寸以最大程度地减少功率损耗。由于斜线角度为16°，因此认为拖鞋轴承并未成为基本问题。关于活塞和圆柱体润滑的经验分析表明，完全润滑是用普通活塞尺寸实现的。为此原因。分析了与气缸接触的摩擦的功率损失和与实验结果进行比较的RETSTED活塞的泄漏流速。开发泵的绩效测试是用乳液类型的高水基流体作为测试luquid进行的。旋转速度为800-2000 rpm的切线，输送压力高达25 MPa。性能测试表明测试排水不大取决于旋转速度，而大多数dratin是活塞和气缸之间的泄漏流量。这些结果表明该泵在理论分析中假定的条件下运行。如果性能测试后的滑动部件引发了损害。对活塞和气缸之间的润滑进行研究。但是，据认为获得了项目的预期结果。