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在大口径钻探中,取粉管接头是消耗很多的材料.我队为了降低消耗,节约资金,用两种办法改造取粉管接头绪构,达到了预期效果.现对这两种改进的取粉管接头分别介绍于后.无丝扣取粉管接头鉴于取粉管接头一般都是反扣,容易损坏,我们将其反扣车去,把取粉管内孔车圆与接头转合相配,在距管口40毫米以远的地方,焊一块25毫米厚的、内孔为65圆×50方的扁圆钢板.装配如图所示,由一改制的锁接手3,连同钻杆1,将取粉管上入接头5,接上岩心管、钻头,便可下并钻进.此种钻头经生产试用,进尺200多米,只耗用三个,大大降低了消耗量.连接式取粉管接头
In the large-diameter drilling, take the powder tube connector is a lot of material consumption.Our team in order to reduce consumption, save money, using two methods to modify the take-up tube take the thread structure, to achieve the desired effect.Now these two improvements to take Powder tube fittings are introduced in the later. No wire take the powder tube connector In view of take the powder tube fittings are generally anti-buckle, easily damaged, we will go back to the car to take the powder tube hole car round with the adapter to match, At a distance of 40 mm from the spout, weld a 25 mm thick oblate steel plate with an inner bore of 65 rounds × 50 squares.As shown, the assembled lock 3, together with the drill pipe 1, Will take the powder tube into the connector 5, connected to the core tube, drill, you can get under and drilling.Through the trial production of such drill, into the foot more than 200 meters, only consume three, greatly reducing the consumption. Pipe fittings