Block type heading machine cutterhead driving structure

Abstract

The invention provides a block type heading machine cutterhead driving structure which comprises a cutterhead, a gearbox, a main bearing, a flange, a large gear ring, a small gear and a plurality of driving single pieces. Each driving single piece comprises a speed reducer, a driving motor and a torque limiter; the multiple driving single pieces jointly drive the cutterhead to excavate a tunnel, and the cutterhead, the main bearing, the gearbox, the flange and other parts of the cutterhead driving structure are blocked in the radial direction, so that the size and weight of the single parts inthe cutterhead driving structure are reduced, the requirement for blocking disassembly and underground assembly of the parts of the cutterhead driving structure is met, the problems that in the special tunnel construction environment, the transportation space is limited, and the lifting capacity is insufficient are solved, and the problem that an integral cutter head driving structure cannot be disassembled and recycled in the tunnel is solved.

Description

technical field [0001] The invention relates to the technical field of excavation devices, in particular to a driving structure of a segmented excavation machine cutter head. Background technique [0002] The tunneling device is the main construction machine in the construction of underground tunnels. The construction of the tunneling device has the characteristics of high automation, high construction efficiency, and low construction safety risks. It can safely carry out tunnel excavation and lining operations in the tunnel. Currently, it is widely used in China It has been widely used in large-scale tunnel projects such as urban subways, river-crossing highway tunnels, and sea-crossing tunnels. [0003] The cutter head drive structure is the driving device of the cutter head of the tunneling device, and is the core component of the tunneling device. Its main function is to provide the power for the forward and reverse excavation of the cutter head, and at the same time bea...

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Problems solved by technology

The drive structure of the cutter head will bear large torque, overturning moment and axial thrust during operation. Its main load-bearing component is a main bearing with a large outer diameter. The outer diameter of the main bearing is generally more than half of the outer diameter of the tunneling device. , and the maximum size of the cutter head drive structure depends on the size of the main bearing; the current cutter head drive structure is an integral structure, which has a large volume and weight; as the excavation device is more and more widely used, some special application scenarios such as Mine roadheaders, tunnel dismantling and recovery equipment and other working conditions that have strict requirements on the size and weight of underground transportation, the current integral main cutter head drive structure cannot meet the use requirements

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