Telescopic revolution rack for ultra-large-diameter full-section shaft drilling machine

Abstract

The invention relates to the technical field of shaft tunneling construction equipment, and particularly relates to a telescopic revolution rack for an ultra-large-diameter full-section shaft drilling machine. The telescopic revolution rack comprises a middle frame, revolution beams, telescopic beams, connecting beams and driving boxes, wherein a plurality of revolution beams are evenly arranged in the circumferential direction of the middle frame at intervals in a radial mode; one end of each revolution beam is detachably connected with the middle frame, and the other end of each revolution beam is movably connected with one end of the corresponding telescopic beam; the other ends of the telescopic beams are correspondingly provided with the driving boxes and cutter heads; under the action of a driving device, the telescopic beams can drive the driving boxes and the cutter heads to move front and back in the axial direction of the corresponding revolution beams; the connecting beams are arranged between the adjacent revolution beams correspondingly; the driving boxes and the cutter heads are arranged between the middles of the connecting beams and the middle frame; and the excavation hole diameter is variable through telescoping of the telescopic beams, the telescopic revolution rack can adapt to the prefabricated shaft wall synchronous open caisson process with different wall thicknesses, six-point synchronous excavation is supported, overall revolution is matched, and ultra-large-diameter full-section excavation can be conducted through the small cutter heads.

Description

Technical field[0001]The present invention relates to the technical field of shaft exploiting construction equipment, in particular, to a telescopic mutual rack for oversized diameter full-section shaft drilling rig.Background technique[0002]In recent years, with the rapid development of the national economy, urban underground space development, urban underground gallery construction and other underground projects are increasingly popular, and thereby also put forward higher requirements for construction equipment, especially some underground engineering requirements to open holes The diameter is very large, but the largest diameter of the largest diameter of the country is only 13 meters, and the drilling rig for a super-shaft of more than 20 meters is very rare in the world. On the one hand, because most underground projects are constructed in urban intensive places, The venue is small, the super large diameter shaft excavation equipment is too large, manufactured, assembled, tran...

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Problems solved by technology

[0002] In recent years, with the rapid development of the national economy, underground projects such as urban underground space development and urban underground pipe gallery construction have become more and more popular, and higher requirements have been put forward for construction equipment, especially some underground projects require digging holes The diameter is very large, but currently the largest shaft drilling rig in China has an excavation diameter of only 13 meters, and ultra-large shaft drilling rigs exceeding 20 meters are very rare in the world. On the one hand, since most underground projects are constructed in densely populated cities, The site is small, and the excavation equipment for super-large-diameter shafts is too large, making it difficult to manufacture, assemble, transport, and construct; Fast-paced needs, and at the same time, with the increase of the diameter of the tunnel, the risk of preventing and controlling the settlement of surrounding strata and buildings increases

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