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为了探索盾构掘进机刀盘的掘进机理和刀具受力特点,依据实际土压平衡盾构机的基本结构,按比例缩小设计了模拟盾构刀盘掘进实验装置,并在不变刀具外形的前提下,研制了刀具与传感一体化的刀具传感器。该装置既可测量刀盘轴向推力、扭矩也可测量刀具切削阻力。实验证明了所研制的刀具传感器的有效性,具有挖掘和监测挖掘时的切削阻力双重功能,且解决了切刀中多个力耦合问题,能够分别测量切刀的切削力和轴向阻力。实验结果显示刀具的切削阻力和轴向阻力随所在位置半径增大而增大,且两者基本成线性关系。
In order to explore the tunnel boring machine shield tunneling mechanism and the characteristics of the tool force, according to the actual structure of the earth pressure balance shield machine, a scaled down simulation shield cutterhead tunneling experimental device, and the shape of the tool Under the premise, developed a tool and sensor integrated sensor. The device can measure the cutter axial thrust, torque can also measure the cutting resistance of the tool. Experiments show that the developed tool sensor has the dual function of cutting resistance when excavating and monitoring excavation, and solves the problem of multiple force coupling in the cutter. It can measure the cutter’s cutting force and axial resistance respectively. The experimental results show that the cutting resistance and axial resistance of the tool increase with the increase of the radius of the location, and the two are basically linear.