Rotary excavating drill bit and amphibious tunnel construction robot applying same

Abstract

The invention discloses a rotary excavating drill bit and an amphibious tunnel construction robot applying the same. The rotary excavating drill bit comprises three sets of disc drill bits, wherein the diameters of the disc drill bits are sequentially arranged from small to large, and cavities are formed in the disc drill bits; the disc drill bit comprises two groups of circular ring seats arranged side by side, a plurality of toothed buckets arranged on the peripheries of the two groups of circular ring seats, and annular racks arranged on the inner sides of the two groups of circular ring seats respectively; the directions of the toothed buckets on the adjacent disc drill bits are opposite, and the disc drill bits rotate towards the direction of the large opening, so that every two of the three groups of disc drill bits rotate in opposite directions; and the three disc drill bit brackets are matched with the three groups of disc drill bits in quantity and are used for supporting and driving the three groups of disc drill bits. The rotary drilling bit is used for tunneling a tunnel, local torque borne by soil is counteracted, and crushing of the soil on the inner wall of the tunnel is reduced. The robot not only can transport and install the tunnel supporting plate, but also can transport earthwork and soil mass in the tunnel, and the tunnel construction efficiency is improved.

Description

technical field [0001] The invention belongs to the field of tunnel construction, in particular to a rotary drilling bit and an amphibious tunnel construction robot using the rotary drilling bit, which is mainly used in tunnel construction in engineering construction. Background technique [0002] With the rapid development of my country's infrastructure capacity, there are a large number of tunnel construction projects. Underwater projects such as tunnels that pass through lake bottoms, river bottoms, and underwater bottoms are usually under complex working conditions, and the construction is relatively difficult. traffic pipeline. Underwater tunnels have different construction difficulty and construction methods according to different water depths and strata conditions. Among them, the shield method is a common construction method for underwater tunnels, and the shield method is a fully mechanized construction method in the construction of the underground excavation meth...

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Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a kind of rotary drilling bit, is made up of three groups of disc drill bits and pilot drill bit, and wherein three groups of disc drill bits rotate oppositely mutually, are used for counteracting the impact of the disc bit on the soil body. The generated torque force solves the problem of collapse of the inner wall soil of the tunnel in brittle soil (such as coral reefs) under unidirectional force

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