Electro-hydraulic control research of hydraulic support hand-control directional valve with the MR fluid base

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part I

Article type: Research Article

Authors: Zhao, Can^{a; *} | Liu, Dandan^b | Li, Huajun^c | Tang, Chunrui^a

Affiliations: [a] Heilongjiang Institute of Science and Technology, Modern Manufacture Engineering Center, Harbin 150027, China | [b] Heilongjiang Institute of Science and Technology, College of Electrical and Information Engineering, Harbin 150027, China | [c] Liaoning Technical University, College of Mechanical Engineering, Fuxin 123000, China

Correspondence: [*] Corresponding author. E-mail: tcrldd@163.com

Abstract: By analyzing the driving moment of the hydraulic support hand-control directional valve, this paper presents an electro-hydraulic control method for the directional valve with a magneto-rheological (MR) valve base. Firstly, the theoretical values of the control moment on the feed oil loop and return oil loop of the directional valve are calculated based on the operating principle of the valve and the stress analysis of the control mechanism. Then, the actuator of the directional valve with MR valve base is designed and the mathematical model of its operation moment is established. Simulation and test results show that this method can realize the electro-hydraulic control of the hydraulic support hand-control directional valve, and satisfy the regulation of intrinsic safety.

Keywords: Magneto-rheological fluid, Hydraulic support, Mass flow directional valve, Electro-hydraulic control, Magneto-rheological hydraulic actuator

DOI: 10.3233/JAE-2010-1194

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 1-2, pp. 849-855, 2010