Made on
Tilda
CITIC typically equips the PB2 with self-aligning roller bearings (spherical roller bearings) on both the input and output shafts. These bearings accommodate minor shaft deflections and misalignments, which are inevitable in large rotating mills.
Installing the PB2 driver typically requires a manual process since these devices are rarely "plug-and-play" on consumer operating systems. citic pb2 driver
The excavation of hard rock tunnels presents significant engineering challenges, particularly in geological conditions characterized by high strength, high abrasiveness, and complex fracturing. The CITIC PB2 Tunnel Boring Machine (TBM) represents a class of main beam tunnel borers designed to address these challenges through robust mechanical design and advanced control systems. This paper provides a comprehensive technical overview of the CITIC PB2 "driver" system, interpreted as the integrated propulsion and control mechanism governing the TBM’s excavation process. The study analyzes the structural characteristics of the cutterhead driving system, the hydraulic propulsion mechanics, and the operational control logic. By examining the torque transmission, thrust distribution, and feedback mechanisms, this paper highlights the PB2’s capabilities in maintaining high penetration rates while ensuring structural integrity under high-stress conditions. CITIC typically equips the PB2 with self-aligning roller