轻量节能型液压阀块设计与增材制造

doi:10.3901/JME.2021.24.123

机械工程学报 ›› 2021, Vol. 57 ›› Issue (24): 123-131.doi: 10.3901/JME.2021.24.123

• 特邀专栏：液压元件及系统轻量化关键技术 • 上一篇下一篇

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轻量节能型液压阀块设计与增材制造

张超^1,2, 周雷^1,2, 赵聪², 汪帅², 赫泰然^1,2, 祝毅^1,2, 杨华勇^1,2

1. 浙江大学流体动力与机电系统国家重点实验室杭州 310027;
2. 浙江大学机械工程学院杭州 310027

收稿日期:2021-06-10 修回日期:2021-09-26 出版日期:2021-12-20 发布日期:2022-02-28
通讯作者: 祝毅(通信作者),男,1984年出生,博士,副教授。主要研究方向为金属增材制造成形液压元件的设计方法及控形控性等。E-mail:yiz@zju.edu.cn
作者简介:张超,男,1990年出生,博士,副研究员。主要研究方向为增材制造轻量节能型液压元件、基于流体动力的柔性驱动元件与机器人等。E-mail:chao.zhang@zju.edu.cn
基金资助:
国家重点研发计划资助项目（2018YFB2000704）。

Design and Additive Manufacturing of Lightweight and Energy-saving Hydraulic Manifold

ZHANG Chao^1,2, ZHOU Lei^1,2, ZHAO Cong², WANG Shuai², HE Tairan^1,2, ZHU Yi^1,2, YANG Huayong^1,2

1. State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027;
2. School of Mechanical Engineering, Zhejiang University, Hangzhou 310027

Received:2021-06-10 Revised:2021-09-26 Online:2021-12-20 Published:2022-02-28

摘要/Abstract

摘要： 增材制造液压元件的设计自由度高，目前主要依赖于人工经验，尚缺乏科学的设计准则和方法来指导增材设计，从而科学有效地设计出轻量化、集成化、节能化程度更高的液压元件。总结了一套传统液压阀块的轻量节能设计方法，提出了降低流道局部压力损失的3种设计准则：圆弧过渡准则；最大转角半径准则；转弯数最小准则。在此基础上，对液压阀块进行了重新优化设计并采用选区激光熔化技术（Selective laser melting，SLM）制造。与传统原型液压阀块相比，增材制造成形液压阀块的质量减轻了81%，空间体积减小了46%，同时主油路压损降低了20%以上，表明新型液压阀块的设计同时实现了轻量化和液压能传输效率的提高。最后，还提出了一套液压阀块的增材设计流程，可为轻量节能型液压元件的增材设计提供理论指导。

关键词: 增材制造, 选区激光熔化, 液压阀块, 轻量化, 节能

Abstract: Additive manufacturing(AM) provides advanced technology for manufacturing hydraulic power components. However, there lack effective design methods to guide the additive manufacturing of hydraulic components with lighter weight and improved hydraulic energy transmission efficiency. The optimized structure for the selective laser melted (SLMed) hydraulic manifold is designed. Moreover, three design criteria are proposed to reduce local pressure loss of fluid passage structure:gradually curved turn design; large turn radius design, and lower turn number design. Based on these criteria, a conventionally processed hydraulic manifold is redesigned and fabricated by SLM technology. Compared with the traditional hydraulic manifold, the weight and space volume of the new SLMed hydraulic manifold are reduced by 81% and 46%, respectively. And the average pressure loss of the main functional oil circuit is reduced by 20%, illustrating that the new hydraulic manifold design simultaneously achieves lightweight and improved hydraulic energy transmission efficiency. Finally, a design process of hydraulic manifold for AM is proposed. Theoretical guidance for designing additively manufactured hydraulic components with increased power-to-mass ratio is provided.

Key words: additive manufacturing, selective laser melting, hydraulic manifold, lightweight, energy-saving

中图分类号:

TH137

张超, 周雷, 赵聪, 汪帅, 赫泰然, 祝毅, 杨华勇. 轻量节能型液压阀块设计与增材制造[J]. 机械工程学报, 2021, 57(24): 123-131.

ZHANG Chao, ZHOU Lei, ZHAO Cong, WANG Shuai, HE Tairan, ZHU Yi, YANG Huayong. Design and Additive Manufacturing of Lightweight and Energy-saving Hydraulic Manifold[J]. Journal of Mechanical Engineering, 2021, 57(24): 123-131.

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轻量节能型液压阀块设计与增材制造

Design and Additive Manufacturing of Lightweight and Energy-saving Hydraulic Manifold

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