Cutting wheel for a cutting boring machine

A cutting wheel for a tunnel boring machine with a number of mining tools (112, 115, 118) for removal of an upcoming geology structure present, during tunneling, at the cutting wheel (103) in a tunneling direction, and with a tool condition monitoring device for monitoring the state of wear of mining tools (112, 115, 118), wherein the tool condition monitoring device has at least one support part (121, 124, 127) assigned to a mining tool (112, 115, 118) and/or a group of mining tools (112, 115, 118), which support part is connected, removably and at a spatial distance from the one or any one of the mining tools (112, 115, 118) or the one or any one of the groups of mining tools (112, 115, 118), to a frame structure (203), and wherein, in the or each support part (121, 124, 127), at least one electrically conductive current conductor element (515) is embedded in such a way that after an abrasion of the one or of any support part (121, 124, 127) that is characteristic of a predetermined state of wear of the one or of any one of the mining tools (112, 115, 118) and/or of the one or any one of the groups of mining tools (112, 115, 118), the or a current conductor element (515) can be interrupted,

• wherein the or a support part is designed as an intermediate part (121, 124) which is located between a mining tool (112, 115) and/or a group of mining tools (112, 115) and the frame structure (203), and wherein the intermediate part (121, 124) follows a geometrically similar contour of the front side, in the tunneling direction, of a corresponding mining tool (112, 115) or of a corresponding group of mining tools (112, 115), and wherein the front side in the tunneling direction of the intermediate part (121, 124) is recessed with respect to the contour of the respective front side of the corresponding mining tool (112, 115) and/or of the group of mining tools (112, 115) against the tunneling direction, and wherein the intermediate part (121, 124) has, at a distance from the front side, a cable-receiving recess (518), which extends, in the tunneling direction, on the rear side of an outer material wall (521) of the intermediate part (121) and in which the current-conductor element (515) is arranged.