液压支架电磁先导阀优化设计

Optimal Design of Electromagnetic Pilot Valve for Hydraulic Support

针对矿用电磁先导阀小推杆偏置设计回油腔阀芯卡滞失效的问题,在保留电磁先导阀原有结构优良性能的基础上进行改进,对阀芯组件、阀体关键部件进行了结构优化,由侧推式顶杆结构优化为正推式梭杆球式结构。同时通过井下现场应用得到优化电磁先导阀的损坏率显著降低,从而保证液压支架的良好工作性能。

Aiming at the problem that the valve core of the oil return cavity of the small push rod offset design of the electromagnetic pilot valve used in mines has stuck and failed, improvements have been made on the basis of retaining the excellent performance of the original structure of the electromagnetic pilot valve, and the valve core components and key parts of the valve body have been improved. The structure is optimized, from the side push ejector rod structure to the forward push shuttle ball structure.At the same time, the damage rate of the optimized electromagnetic pilot valve is significantly reduced through the downhole field application, so as to ensure the good working performance of the hydraulic support.