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我队钻机用的是14.5米角铁钻塔.过去立塔所用的挑杆,就是用杉木或水管,绑在塔腿上,既笨重又不安全.现在我们是这样改进的:在每层(四个角)的塔腿上,都安上能拆卸的活动夹板(包括专插挑杆的套筒——挑杆座),立塔时,将挑杆底部插入套筒,挑杆上端装有滑轮,利用其滑轮,便能方便地提升塔料.立完一层,就拔出挑秆,插到上一层的套筒中去,依此逐层上升.这样,由于每层可从四面上塔料,立塔的工效就大大提高了.夹板及套筒,1～5层每层四付,第六层因作业范围小,可只用两付就够了,所以每塔配用的挑杆夹板及套筒是22付.装有滑轮的挑杆可选用φ42的钻杆,长约2.8米.每座钻塔配四根.
Our team used a 14.5-meter angle iron rig. The picket used in the previous tower was tied to the legs with fir or water pipes. It was clumsy and unsafe. Now we have improved: on each floor ( On the legs of the four corners, there are removable removable splints (including the socket for the pick-and-place rods). When the tower is erected, the bottom of the pole is inserted into the sleeve, and the upper end of the pole is equipped with Pulley, using its pulleys, can easily lift the tower material. After finishing a layer, pull out the picking stalk and insert it into the upper layer of the sleeve to raise it layer by layer. In this way, since each layer can be from four sides, On the tower material, the efficiency of the tower is greatly improved. The splint and the sleeve, 1 to 5 layers of four pay each layer, the sixth layer due to the small operating range, can only use two pay is enough, so each tower is equipped with Pick bar plywood and sleeve is 22 pay. The pick bar with pulley can choose φ42 drill pipe, about 2.8 meters long. Each drill tower with four roots.