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The article presents the results of asymmetrical disk tools laboratory tests. This type of mining tools can be used for mechanical mining of hard rocks, among others in the solution of innovative roadheader head, presented on SGEM conference in 2016. The study was conducted at a dedicated laboratory stand, with an installed drive power of 80 kW. Stand consists of rotating rock sample, mined by special plate equipped with asymmetrical disk tools. The rock is mined using undercutting technique, also known as Wohlemy...

A starting point for roadheader robotisation (understood as a fully autonomous machine) is to automate the cutting process, which is the basic working process carried out by such machines. In case of boom?type roadheaders, it consists in automatic control of the movement of cutting heads to ensure that the face surface can be worked with optimum process parameters. This will guarantee high drilling efficiency (drilling advancement) and lower energy consumption, reduced dynamic loads and elimination of overloads. T...