Determination of the Rational Number of Cutters on the Outer Cutting Drums of Geokhod

摘要

The issue of substantiation and choice of a rational number ofcutters on the outer cutting drums of the geokhod for the formationof grooves in medium strength rocks is considered in this article. Itis established that the coefficient of variation of the torque mtaken into account while determining the number of cutters. It isestablished that the required feed velocities are realized with acrown-type outer cutting drum at one or two cutters in the cuttinglines, and the coefficient of torque variation doeany allowable number of cutters and equal lag angle. On the disktype outer cutting drum required feed velocities are realized withthe number of cutters in the cutting lines from 1 to 4. The minimumnumber of cutters providing a coefficient of variation of the torqueon the disk-type outer cutting drum above the set depends on theangle of coverage and reduces with the increase of the angle ofcoverage. The example of schematic designs of OCD AR and OCDEP development is shown for a prototype model of geokhod (3.2 mdiameter) using the obtained expressions to determine the basicgeometric, kinematic, force, and structural parameters. Thepossibility of decision making of the type of OCD for geokhod andits creation is confirmed. The documentation design documents forproduction crown-type OCD for a prototype of geokhod weredeveloped based on the conducted research.