最新潜孔钻机卸杆机构方案的设计与研究.doc

潜孔钻机卸杆机构方案的设计与研究
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-disc油缸式的钻杆接卸装置
瑞典Atlas Copco公司早期生产的Roc306潜孔钻机和国产DQ150J潜孔钻机接卸钻杆装置就是采用的人工垫叉—卸杆油缸式的钻杆接卸装置。该类型的钻杆接卸装置在国内露天潜孔钻机中应用广泛，它的缺乏之处就在于需要人工操作来参与卸杆，危险系数大，工作效率也较低。
液压垫叉—卸杆活塞式钻杆接卸装置
美国TWR米申公司600—U型潜孔钻机就是采用液压垫叉—卸杆活塞式钻杆接卸装置来接卸钻杆的。该钻杆接卸装置与人工垫叉式—卸杆油缸式的钻杆接卸装置相比就是采用了液压垫叉，免去了人工的劳动降低了危险性，卸杆效率有所提高。
液压垫叉—卡杆油缸——活塞卡套式接卸钻杆装置
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist4
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist
这种接卸钻杆装置的回转头上配有气动卡杆装置。在液压垫叉—卸杆活塞式钻杆接卸装置的根底上做了进一步的改良同时采取的卸杆方式也有所不同。
连杆—油缸型接卸钻杆装置
宣化风动机械研究所研制的连杆—油缸型接卸钻杆装置，主要由上下卡杆器和一个卸杆油缸组成，每个卡杆器由一卡杆油缸、卡爪、连杆机构等组成。驱动卡杆油缸通过连杆机构可实现对钻杆的夹紧和松夹。每个卡杆器可单独或同时控制，实现对钻杆的夹紧和松夹。当两对卡杆器分别卡住相邻两根钻杆时，驱动卸杆油缸使上下卡杆器相对转动，即实现对钻杆间螺纹的拧松。
全液压型钻杆接卸装置
瑞典Atlas Copo公司生产的M177、Simba261潜孔钻机采用的就是全液压型钻杆接卸装置。这种装置不仅可以接卸钻杆，而且对钻杆起开孔导向的作用。

人工垫叉—卸杆油缸式的接卸钻杆装置需要人工垫叉、人工移动和拆装卡杆叉，工人的劳动强度较大，卸杆时间长。
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist6
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders a