中国机械工程

• 机械基础工程 • 上一篇    下一篇

具有孔道沉槽的滑阀过流面积分析

张立杰1,2;王力航1;王帅1;李德新1   

  1. 1.燕山大学河北省重型机械流体动力传输与控制重点实验室,秦皇岛,066004
    2.先进锻压成形技术与科学教育部重点实验室,秦皇岛,066004
  • 出版日期:2016-09-25 发布日期:2016-09-22
  • 基金资助:
    国家自然科学基金资助项目(51275438)

Analysis of Orifice Area of Slide Valve with Sinking Grooves

Zhang Lijie1,2;Wang Lihang1;Wang Shuai1;Li Dexin1   

  1. 1.Hebei Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Yanshan University, Qinhuangdao,Hebei,066004
    2.Key Laboratory of Advanced Forging & Stamping Technology and Science, Ministry of Education of China, Qinhuangdao,Hebei, 066004
  • Online:2016-09-25 Published:2016-09-22
  • Supported by:

摘要: 多路阀以其高集成度被广泛应用于工程机械领域,其中阀口形式对多路阀流量控制特性具有重要影响。对于阀体上开有孔道沉槽、节流面为常见的圆柱面和圆锥面两种滑阀阀口形式的多路阀,根据其结构特征及内部流场压力分布和速度变化情况,利用等效阀口面积理论,推导了圆柱面阀口和圆锥面阀口过流面积计算公式。利用流场仿真对计算结果进行了修正,采用实验手段验证了计算结果的准确性。研究结果对滑阀阀芯的多路阀设计及性能预测具有一定参考价值。

关键词: 多路阀, 孔道沉槽, 阀口过流面积, 流场仿真

Abstract: Multiple valve with its high degree of integration was widely used in the field of engineering machinery, where the valve port form possessed a very important impact on flow control characteristics. Aiming at the cylindrical and conical valve orifice of the spool valve with grooves on the valve body, and based on the structural characteristics and pressure distribution and velocity changes of the internal flow field, and with the equivalent orifice area theory, the calculation equations of orifice area of the cylindrical and conical valve orifice were proposed and analyzed. The results were corrected by the flow field simulation, and the accuracy of the results was verified by experiments. The study results have some reference values for the design and performance prediction of the hydraulic master valve.

Key words: multiple valve, sinking groove, orifice area of slide valve, flow field simulation

中图分类号: