Analysis on the mechanical properties of crawler doubles - arm degree-dividing bar car bolt drill. Issue 1 (1st January 2022) - Wang, W H
Abstract: In view of the low efficiency of roadway support in coal mine, a crawler double arm bolts drill with indexing function is proposed, in view of the low efficiency of roadway support in coal mines, a crawler double-arm bolt drill with indexing function is proposed. The mechanical characteristics of its key components in the telescopic action of the spindle arm are calculated and analyzed, and the binding force of the spindle arm and the variation rule of the telescopic acceleration and rotation Angle parameters are obtained. And the torque of the spindle arms decreases slightly with the decrease of the rotation Angle of the spindle arm, and increases greatly with the increase of the length of the spindle arm. The results show that the maximum torque is 6914Mpa when the length of the spindle arm is 2.4m and the rotation Angle is 45°, which lays a foundation for the subsequent design of the drill car and the improvement of the efficiency of anchor guard operation.