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发明公开
CN110725816A 一种凿岩液压系统 审中-实审

一种凿岩液压系统
摘要：
本发明公开了一种凿岩机液压系统，包括油箱(4)、串联连接的油泵(1、2、3)、冲击液压阀(5)、钻臂压力控制阀(6)、压力传感器(7)、凿岩机(8)、推进压力控制阀(9)、比例多路换向阀(10)、推进油缸(11)、凿岩机马达(12)和比例换向阀(13)；所述油泵(1、2、3)之间通过螺栓和花键连接；所述油箱(4)和油泵(1、2、3)吸油口(S1、S2、S3)及泄油口(L1、L2)通过高压油管相连通。本发明简化了液压系统，减少液压油泄漏，提高系统的可靠性。
摘要（英）：

The invention discloses a rock drilling hydraulic system. The rock drilling hydraulic system comprises an oil tank (4), oil pumps (1, 2 and 3) connected in series, an impact hydraulic valve (5), a drill arm pressure control valve (6), a pressure sensor (7), a jackdrill (8), a propelling pressure control valve (9), a proportional multi-way directional valve (10), a propelling oil cylinder (11), a jackdrill motor (12) and a proportional directional valve (13). The oil pumps (1, 2 and 3) are connected through bolts and splines. The oil tank (4) communicate with oil suction openings (S1, S2 and S3) and oil drain openings (L1 and L2) of the oil pumps (1, 2 and 3) through high-pressure oil pipes. The hydraulic system is simplified, hydraulic oil leakage is reduced, and system reliability is improved.

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