MG100全液压锚杆钻机钻架工作原理分析

The Analysis of Principle for Drill Frame of MG100 Hydraulic Roof Bolter

目的分析MG100型全液压锚杆钻机全方位调整钻架的构造及工作原理,确定锚杆钻机钻头工作的矢量空间域.方法通过对锚杆钻机全方位调整钻架立面摆动部分、滑移伸缩部分和旋摆部分的分析,论述了全方位调整钻架的构造;并把实际工作状态下的钻架简化为数学模型,分析其工作原理,运用机器人运动学原理建立了钻头的运动方程.结果大臂绕与上支座铰接的铰点旋转范围为-20°^+55°,桅杆在立面内的摆动范围为-142°^+24,°桅杆绕回转支承轴旋转92.5°,桅杆可在滑槽内滑移1 000 mm.它反映出钻杆具有多方向钻进能力.结论得出了钻头工作的矢量空间域,为钻机的整体设计与使用提供了理论基础.

This paper gives a description of the structure of drill frame. According to the analysis of the principle for adjustment drill frame, the posture of drilling bit is sure. According to the description of the three part ingredients of the structure, the structure of drill frame has been introduced. The drilling frame on actual work has been simplified into mathematic model, and the principle for adjustment of drill frame has been analyzed. At the same time, the bore bit motion equation has been set up by applying robot kinematics principle. Boom can go round with the hinge which joins the boom to the base frame to be -20° ～ ＋ 55° ;The mast assembly range within standing face is -142°～ ＋ 24°;The mast assembly winds the supporting axle revolution turning round 92.5°. Those show that the drill frame has many-direction drilling ability. The mast assembly may slip within connecting beam 1000 mm. By the analysis of the drilling frame, the position posture of drilling bit is worked out and the rationale for the whole design and use of rock drill are pointed out.