Determination of the energy required to expose the surface of the knife and the bottom of the bulldozer blade to the ground at the beginning of the pass

Introduction. The use of a complex continuous units in the construction roads will increase labour productivity, improve quality road construction. Therefore, purpose design is to create for roads, mainly automatic mode. In first stage, combination theoretical calculations parameters technology tools and developments right way achieve this goal. To remove stones, bushes, trees from right-of-way future road, it advisable with bulldozer equipment. Although foundations soil development are considered great detail, but based on them difficult identify compare partial energy costs impact elements technical means. detailed analysis interaction various means, particular, equipment, necessary. Before considering primary pseudo-shift soil, necessary calculate effective forces surface knife lower part blade ground. method research. If depth small, transports upwards, carrying out: secondary displacement after pseudo-shift; raising height; overcoming force inertia developed soil; acceleration friction surface. A determining required ground at beginning passage, taking into account these components, has been developed. Results. On basis methodology, have determined: shift, height, inertial accelerating total costs, power, traction revealed, initial conditions. results move blade, during cutting different depths knife, obtained. parameter dependencies equipment constructed. Conclusion. Analysing drawings, can be seen that P-point application concentrated normal reaction passing through O mass center displaced an shifts down, blade. So, when buried by more than 200 mm, P point located outside knife. During operation bulldozer, may not happen if deepened gradually. As deepened, volumetric passage increases