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我队曾试制一台自动卸管机,经机场试用,当操作不熟练时能提高工效50～60%;熟练则能提高一倍以上.该机构造简单,操作方便,能减轻体力劳动和减少操作人员;适用于500与300公尺钻机打斜孔或直孔.其内套内径为155公厘,能通过146公厘套管和150公厘钻头,能代替铁制井口台使用.如将钻机升降号制动装置改设前边操作,能直接观看钻捍接头的露出或下落位置,以及井口及塔上情况,而利于操作和安全生产.该机构造如图1所示,主要为变速箱2,扭卸器1,底座4三大部份所组成.系安装在井口处,其动力来源,山钻机构轴排廻齿轮外的三角皮带轮传出,经变速箱主轴右端三角皮带轮2,而带动主轴廻转,如图2所示.
Our team has tried a self-unloading machine, the airport trial, when the operation is not proficient can improve work efficiency 50 ~ 60%; skilled can be more than doubled. The machine structure is simple, easy to operate, can reduce manual labor and reduce Operators; Suitable for drilling 500 or 300 m diagonal drilling holes or straight holes. The inner diameter of the sleeve is 155 mm, can be used instead of iron shaft wellhead through 146 mm casing and 150 mm drill bit. Drill lift number brake device to modify the front of the operation, can directly watch the drill to defend the joint exposed or whereabouts, as well as the wellhead and tower on the situation, which is conducive to operation and safety production. The machine structure shown in Figure 1, mainly gearbox 2, twisting device 1, the base 4. The Department of installation at the wellhead, the power source, the mountain shaft mechanism outside the row of gear triangle pulley came out, the gearbox spindle right triangular pulley 2, and Drive spindle 迴 turn, as shown in Figure 2.