Cutter applied to slurry balance shield tunneling machine

Abstract

The invention discloses a cutter applied to a slurry balance shield tunneling machine. The cutter comprises a cutter disc body, shaft strips, a wear-resistant strip, a center cutter, hobbing cutters,a fan-shaped opening, a cutter, arc-shaped cutters, a circular soil inlet, a cutting disc, a fishtail cutter, a profiling cutter, a center cutter disc, a scraper, a connecting mechanism and a main bearing. The cutter has the beneficial effects that the six shaft strips are uniformly arranged in a radial shape from the center of the cutter disc body to the edge direction, so that the cutter disc body can be conveniently divided into a plurality of areas; the six groups of hobbing cutters and the six groups of arc-shaped cutters are arranged, so that the stability of the excavation process is guaranteed; the center cutter is made of hard diamond, and the center cutter is higher than a panel of the cutter disc body, so that a pilot drill hole can be conveniently formed; the fishtail cutter, the profiling cutter and the scraper are connected with the cutter disc body through fastening bolts, so that later disassembly and maintenance are facilitated, and the operation is convenient; and cutter rings are arranged on the outer sides of the hobbing cutters, so that an operator can conveniently determine whether to replace the cutter or not by measuring the abrasion loss of the cutter ringsof the hobbing cutters.

Description

technical field [0001] The invention relates to a cutter, in particular to a cutter used in a mud-water balance shield machine, and belongs to the technical field of tunnel construction. Background technique [0002] In tunnel construction, shield technology has been more and more widely used due to its advantages of high degree of automation, high construction safety, fast construction progress, low pollution, and low cost. The mud-water balance shield machine is mainly suitable for underground water pressure , The geological conditions with large soil permeability coefficient are widely used in the construction of subway tunnels such as crossing rivers and seas. When the muddy water shield machine travels through the sand layer for a long distance, the quartz in the formation will aggravate the wear of the shield machine tool. At this time, maintenance or replacement of the tool is required. However, the cutter on the existing muddy water balance shield machine cutter head...

AI Technical Summary

Problems solved by technology

When the muddy water shield machine travels through the sand layer for a long distance, the quartz in the formation will aggravate the wear of the shield machine tool. At this time, maintenance or replacement of the tool is required. However, the cutter on the existing muddy water balance shield machine cutter head is inconvenient to disassemble and replace. more troublesome

Images