介绍了平衡阀在掘进机机载临时支护装置液压系统中的应用,通过对比液压锁和平衡阀之间的结构差异和工作原理,以及实际运用中液压锁出现的问题,阐述选用平衡阀的优势。 This paper introduces the application of balance valve in the hydraulic system of on-board temporary support device of roadheader. By comparing the structural differences and working principle between hydraulic lock and balance valve, and the problem of hydraulic lock in practical application, Advantage.