Pore forming machine with symmetrical rotating wheels for geotechnical engineering

Abstract

The invention discloses a pore forming machine with symmetrical rotating wheels for geotechnical engineering. The pore forming machine comprises a main control system and an excavating device, wherein the excavating device comprises a guide frame and a rotating cutter head mechanism; the rotating cutter head mechanism comprises a cutter, a cutter head ring and the rotating wheels; each rotating wheel comprises a fixed machine shaft with a bowl-shaped structure, a hydraulic motor, a sun gear, a plurality of planetary gears, a planetary gear carrier and a cover plate; each hydraulic motor is fixed in the corresponding fixed machine shaft; a center shaft of each hydraulic motor is connected with that of each sun gear; an inner gear ring is arranged on the inner wall of each fixed machine shaft; each planetary gear is meshed with the corresponding sun gear and is meshed with the corresponding inner gear ring; each planetary gear carrier is an end cover arranged on the corresponding fixed machine shaft in a covering way; the center shaft of each planetary gear is axially jogged with the end face of the corresponding end cover; each cutter head ring is fixedly arranged at the periphery of the corresponding end cover; a plurality of cutters are uniformly distributed on each cutter head ring. The pore forming machine disclosed by the invention has the advantages of compact and reasonable integral structure, high power, good insulating property, good stability, good flexibility and durability.

Description

technical field [0001] The invention relates to the technical field of building construction equipment, in particular to a geotechnical pore maker used for civil engineering construction. Background technique [0002] In the field of building construction, especially in the field of civil engineering construction technology, it is often necessary to construct underground space structures. And in the case of complex geological conditions and surrounding environment, it is usually necessary to construct foundation pit support structures during construction, and because the underground wall has the characteristics of good integrity and excellent water interception function, it becomes a weak point for foundation pit support to deal with. An important structure in complex strata, during construction, like pile foundations, the construction of underground walls usually requires the use of mud retaining wall technology to make holes, that is, construction machinery drills / digging...

AI Technical Summary

Problems solved by technology

[0004] Among them, the hole-forming method of punching first and repairing the hole after the impact drilling method is more traditional, which belongs to the impact type, and the cost is low, so it is widely used and can deal with complex rock and soil layers. However, its efficiency is low and the mud consumption is huge. It is not conducive to environmental protection, and the vibration and noise are high during construction, which has a great impact on the surrounding environment

[0005] The hydraulic grab hole-forming method is a sharp tool for digging shallow soil. It belongs to the soil-taking method. The wall is flat and the efficiency is quite high. The mud consumption is low and it is widely used. However, when the soil layer reaches a depth of about 30 meters, the grab digging The efficiency of the soil will become very low. When encountering a thicker gravel layer, it is necessary to drill / punch the pile machine to construct the pilot hole first. When encountering the rock layer, the hydraulic grab hole forming method cannot cope.

[0006] The multi-head drilling method is mostly used in soft soil layers. The disadvantages are poor verticality, large amount of mud, and low efficiency. It is less used now.

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