Selection of parameters of roofbolter for different roek conditions

摘要

So far, there have bene no theoretical base in roofbolter designs to select the reasonable cutting rotating speed, torque and power, to obtain the optimum feeding force and drilling speed, regarding to different rock hardness and different hole diameter. Based on the experience we have got in the last ten years, theoreticla calculations and deductions have bene worked out to solve the problem. Experiments and tests have also been tried to verify the theories, to form the relative curves. By means of the computer expert system, a computer program has been provided which gives all the expected data and imformation your need in roofbolter designs.