Patent ID: 11879874
Assignee: SHANDONG UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. The TBM-mounted surrounding rock wear resistance testing system according to claim 12, wherein the surrounding rock wear resistance testing module further comprises a first support beam arranged at the movable end in a vertically movable manner, the first hydraulic drive mechanism is arranged on the first support beam, at least one second hydraulic drive mechanism capable of extending and retracting vertically is further arranged on the first support beam, a free end of the second hydraulic drive mechanism is provided with a fixing sleeve for fixing the steel needle, the steel needle is arranged at the free end of the first hydraulic drive mechanism in a manner of being movable along a vertical plane, and the vertical plane is perpendicular to the axial direction of the steel needle.