Cutter head with high rock breaking efficiency for tunnel boring machine

Abstract

The invention discloses a cutter head with high rock breaking efficiency for a tunnel boring machine. The cutter head comprises a middle block, wherein a plurality of first hob mounting grooves, first mounting grooves and second mounting grooves are formed in the middle block; a first hob assembly is arranged in each first hob mounting groove; an electron beam generating device and a focusing lens are mounted on each first mounting groove; a first high-pressure water nozzle and a first high-pressure water pipe are arranged in each second mounting groove; a plurality of telescopic rods are arranged on the lower surface of the middle block; a plurality of side blocks and filling blocks are arranged among all the telescopic rods; a second hob assembly, an electron beam generating device, a second high-pressure water nozzle and a second high-pressure water pipe are arranged on each side block; a connecting block is arranged between each side block and the middle block; and a third hob assembly is arranged on each connecting block. The cutter head disclosed by the invention can reduce the use cost and also has the advantages of long service life, high working efficiency, wide application range, convenience in maintenance, high use stability and high structural strength.

Description

technical field [0001] The invention relates to a cutterhead for a tunnel boring machine, in particular to a cutterhead for a tunnel boring machine with high rock breaking efficiency. Background technique [0002] During the construction of tunnels in water conservancy projects, especially in the construction of diversion tunnels for pumped storage power stations, it is necessary to use tunnel boring machines for tunnel excavation. Tunnels; the diameter of the cutter head used by the tunnel boring machine is fixed at present. When the excavated tunnel corresponding to the diameter of the cutter head is excavated, it is difficult to use the cutter head to excavate tunnels with other diameters, resulting in The old cutter head was put on hold, and a suitable cutter head needed to be remade, which increased the cost of the overall project; and the position of the existing cutter head was arranged by the technicians based on experience, but in the actual process of excavating th...

AI Technical Summary

Problems solved by technology

[0002] During the construction of tunnels in water conservancy projects, especially in the construction of diversion tunnels for pumped storage power stations, it is necessary to use tunnel boring machines for tunnel excavation. Tunnels; the diameter of the cutter head used by the tunnel boring machine is fixed at present. When the excavated tunnel corresponding to the diameter of the cutter head is excavated, it is difficult to use the cutter head to excavate tunnels with other diameters, resulting in The old cutter head was put on hold, and a suitable cutter head had to be remade, which increased the cost of the overall project; and the position of the existing cutter head was arranged by the technicians based on experience, but in the actual process of excavating the tunnel, The rock formation environment is complex, and it is easy to overload the cutter or eccentric wear between the cutter and the cutter, which in turn affects the service life of the overall cutterhead

Therefore, the existing tunnel boring machine cutter head has the problems of high cost of use and short service life in the process of use.

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