drilling rate index for the tunnel boring machine design , a bit worn cutter test index or indices to estimate the life of the device

摘要

This devise is also brittle test equipment; Perforation resistance test equipment; Wear numerical test equipment; A controller for controlling the operation of the test facility is also brittle, puncture and abrasion resistance test equipment test facility levels; And the brittleness is also provided in the test equipment or test equipment wear value, a sensor sends a signal to the control unit detects the number of times of the predetermined unit test, and the test equipment or even brittle wear test equipment operating a numerical input of the pre- relates to a test device for estimating the drilling rate index, or index the cutter bit wear life index for automatically designing a tunnel boring machine, controlled by the controller depending on the number of units tested. ; This is intended The automatic control and, therefore, it is possible to ensure the accuracy and convenience of the test operation, to reduce the strain of the test equipment, which may decrease the accuracy of the test equipment in accordance with the uses because it is effective to maintain.