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申请号:201911380085.X 公开号:CN110937530A 主分类号:B66D1/08
申请人:【中文】恒天九五重工有限公司【EN】CHTC JOVE HEAVY INDUSTRY Co. 申请日:2019.12.27 公开日:2020.03.31
摘要:【中文】本发明公开了一种自适应可调节入岩钻机卷扬机的液压控制系统,其相对于现有技术增加了第一换向阀、第二梭阀、节流阀、溢流阀、远程调压溢流阀和第二换向阀,当开启第一换向阀和第二换向阀时,外部开锁油源通过第二梭阀进入开锁通道,将减速机制动打开。同时第二换向阀打开将溢流阀控制口和远程调压溢流阀的进油口连通,调节远程调压溢流阀的压力即可调节卷扬机的拉力。当岩石支撑潜孔锤的力小于潜孔锤工作装置的重力与卷扬机的拉力之差时,因潜孔锤重力的作用,卷扬马达和远程调压溢流阀自动工作;潜孔锤就会相应的下放一段距离,达到平衡,随着潜孔锤持续钻进,卷扬机会自动跟随下放。本发明可以降低工人的劳动强度,提高工作效率。 【EN】The invention discloses a hydraulic control system of a self-adaptive adjustable rock-entering drilling machine winch, which is additionally provided with a first reversing valve, a second shuttle valve, a throttle valve, an overflow valve, a remote pressure regulating overflow valve and a second reversing valve compared with the prior art, when the first reversing valve and the second reversing valve are opened, an external unlocking oil source enters an unlocking channel through the second shuttle valve, and a speed reducer is braked and opened. Meanwhile, the second reversing valve is opened to communicate the overflow valve control port with the oil inlet of the remote pressure regulating overflow valve, and the tension of the winch can be adjusted by adjusting the pressure of the remote pressure regulating overflow valve. When the force of the rock supporting down-the-hole hammer is smaller than the difference between the gravity of the down-the-hole hammer working device and the pulling force of the winch, the winch motor and the remote pressure regulating overflow valve automatically work under the action of the gravity of the down-the-hole hammer; the down-the-hole hammer can be correspondingly lowered for a certain distance to reach balance, and the winch can be automatically lowered along with the continuous drilling of the down-the-hole hammer. The invention can reduce the labor intensity of workers and improve the working efficiency.
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