Cutter head structure for full-section shaft heading machine

Abstract

The invention provides a cutter head structure for a full-section shaft heading machine. The cutter head structure comprises a cutter head body, a cutter holder assembly and a hob, wherein the cutter head body comprises a plurality of amplitude arms and a shaft connecting body, the shaft connecting body is connected with a main drive of the heading machine and is used for mounting the amplitude arms, the amplitude arms are circumferentially distributed along the shaft connecting body, and the shaft connecting body comprises a central connecting block which is arranged at an operating end and is provided with a transition cavity between the central connecting block and part of the amplitude arms; the cutter holder assembly is arranged on the amplitude arms and the central connecting block and is used for mounting the hob, and the hob can rotate relative to the cutter holder assembly; and the hob comprises a cutter body and blades which are circumferentially arranged along the cutter body, and cutting edges of the blades are obliquely arranged towards one end of a central axis relative to the central axis of the cutter body. According to the cutter head structure, the central connecting block is arranged to be of a cross-shaped frame structure, so that an opening of a central region of a cutter head is enlarged, the problems that muck is easily accumulated in the central region of the vertical cutter head and the fluidity of slurry is relatively poor are solved, and meanwhile, a mounting space is provided for a cutter holder in a transition region.

Description

technical field [0001] The invention relates to the technical field of roadheaders, in particular to a cutter head structure for a full-face shaft roadheader. Background technique [0002] Shaft is an important engineering structure for humans to develop underground space and resources. It is the shortest channel connecting the surface and underground space. It is widely used in national defense construction, resource mining, tunnel construction and municipal engineering. [0003] The existing shaft excavation methods have undergone long-term development. The main drilling methods include drilling and blasting, drilling, and tunneling machine methods. , Reaming type shaft boring machine, cutting type shaft boring machine, full section tunneling machine and other well construction equipment. Among them, the full-face shaft tunneling machine generally adopts the integral cutter head to form a tunnel at one time, and the muddy water slag is discharged for shaft construction. D...

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Problems solved by technology

Among them, the full-face shaft tunneling machine generally adopts the integral cutter head to form a tunnel at one time, and the muddy water slag is discharged for shaft construction. During the slag removal process, the structure is prone to accumulation of muck and soil in the central area of ​​the cutter head structure and poor fluidity of the mud. question

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