Solution for the Location of Rock Cutting Elements Relative to the Rotation Center of Geohod

Abstract

The article presents the technical solution for the location of cutting elements relative to the rotation center of Geohod for destructing rocks with a strength up to 1 of Protodyakonov hardness. The relevancy of the research is considered. General information about Geohod is given. The features of working body of Geohod are described, in particular, the formation of a complex shape of the face and the working body, and it is also said that in the case of screw movement of working body of Geohod to the face, the points of working body form a helicoidal (helical) surface. To set the purpose and objectives of the study the geometric parameters of generatrix are justified. The parameter depending on the number of blades and on the radius of location of the blade’s cut is identified. Based on the study, the dependence of the number of blades on their location from the center to the periphery is determined. The design of blade working body of Geohod for rocks with a strength f <1 of Protodyakonov hardness is offered. Also the directions for further research have been identified, which include: the development of methods for calculating cutting forces for a technical solution for the location of cutting elements relative to the center of rotation of Geohod for destructing rocks up to 1 of Protodyakonov hardness; the application of this technique for obtaining variants of the blade working body of Geohod of different types.

Development of a mathematical model of the interaction of the knife actuator of geokhod with the semiconvex shape of the cutting edge of the knife with the mine faces rock

“…In this regard, interest in the use of underground space is expanding, thereby the volume of construction of underground structures increases [1][2][3][4][5]. As a result of a number of studies aimed at increasing productivity, a new approach to the construction of underground structures has been formed -Geokhod technology, the basic element of which is a new class of mining equipment -Geokhod [6][7][8][9]. The development of Geokhod prototypes is constrained by the lack of scientific foundations for the creation of their systems.When constructing underground structures in the technological cycle, one of the main stages is the process of separating rocks from the massif.…”