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发明公开
CN103029174A 煤矿井下水切割机的控制系统 有权 转让

煤矿井下水切割机的控制系统
摘要：
本发明公开了煤矿井下水切割机的控制系统，油箱（1）连通液压泵（4），液压泵（4）连通第二液控换向阀（9），第二液控换向阀（9）分别连通双作用增压缸（26）的左油腔和右油腔，左油腔和右油腔内分别安装第一顶杆柱塞阀（14）、第二顶杆柱塞阀（15），第二顶杆柱塞阀（15）连通第一液控换向阀（8），第一顶杆柱塞阀（14）连通第一液控换向阀（8），第一液控换向阀（8）连通液压泵（4），双作用增压缸（26）的左水腔和右水腔分别连通蓄能器（23）和水泵（22），整体形成控制系统。本发明整机操作不产生电火花或其它火花，可以使用在采矿、消防抢救、防爆等场合，特别适合煤矿井下切割操作。
摘要（英）：

The invention discloses a control system for a coal mine underground water-jet cutting machine. An oil tank (1) is communicated with a hydraulic pump (4); the hydraulic pump (4) is communicated with a second pilot operated directional control valve (9); the second pilot operated directional control valve (9) is communicated with the left oil cavity and the right oil cavity of a dual-purpose boosting cylinder (26) respectively; a first mandrel plunger valve (14) and a second mandrel plunger valve (15) are arranged in the left oil cavity and the right oil cavity respectively; the second mandrel plunger valve (15) is communicated with a first pilot operated directional control valve (8); the first mandrel plunger valve (14) is communicated with the first pilot operated directional control valve (8); the first pilot operated directional control valve (8) is communicated with the hydraulic pump (4); and the left water cavity and the right water cavity of the dual-purpose boosting cylinder (26) are communicated with an energy accumulator (23) and a water pump (22) respectively, so that a control system is formed as a whole. The entire system can be operated without generating electric sparks or other sparks, can be applied to occasions such as mining, fire control, rescue, explosion protection and the like, and is particular suitable for performing coal mine underground cutting operation.

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