Bidirectional rotary cutter head of rock boring machine and bidirectional rotary boring method

Abstract

The invention relates to a bidirectional rotary cutter head of a rock boring machine and a bidirectional rotary boring method. The bidirectional rotary cutter head of the rock boring machine comprises a cutter head body, hobbing cutters, slag outlets, grids, buckets, clockwise rotation blind plates, counterclockwise rotation blind plates and high-strength connecting bolts. The counterclockwise rotation blind plates are arranged on the clockwise side of the corresponding buckets. The clockwise rotation blind plates are arranged on the counterclockwise sides of the corresponding buckets. The counterclockwise rotation blind plates and the clockwise rotation blind plates can be used for covering the slag outlets on the counterclockwise sides and the clockwise sides of the corresponding buckets correspondingly. By adoption of the bidirectional rotary cutter head, the service life of the hobbing cutters can be prolonged; and in addition, eccentric rotation or tipping of a shield connected with the cutter head can be avoided through cutter head bidirectional rotation achieved by switching the rotation direction of the cutter head, the construction difficulty and dangerousness are lowered, and the defects that a conventional hard rock cutter head does not have an automatic deflection-preventing function, the service life of a main drive gear pair is short, and a cutter bearing and a main drive bearing are prone to fatigue wear are overcome.

Description

technical field [0001] The invention relates to a full-face rock boring machine TBM, in particular to a bidirectional rotary cutterhead of the rock boring machine and a bidirectional rotary tunneling method. Background technique [0002] In the field of TBM construction of full-face rock tunneling machines, unidirectional rotary cutterheads are generally used, which will cause twisting and tipping of the rear shield during long-term excavation, which will cause greater wear and tear on the main drive gear pair and affect its service life. , prone to fatigue wear on hob bearings and main drive bearings. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the unidirectional rotary cutterhead in the TBM construction process in the prior art, the present invention provides a two-way rotary cutterhead for rock excavation machines, including: cutterhead body, hob, slag outlet, grille , bucket, clockwise rotating blind plate, counterclockw...

AI Technical Summary

Problems solved by technology

[0002] In the field of TBM construction of full-face rock tunneling machines, unidirectional rotary cutterheads are generally used, which will cause twisting and tipping of the rear shield during long-term excavation, which will cause greater wear and tear on the main drive gear pair and affect its service life. , prone to fatigue wear on hob bearings and main drive bearings

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