Internal and external cutter head tbm device based on pulse jet + point processing

Abstract

The invention discloses an inner and outer cutterhead TBM device based on pulse jet + point treatment. It includes a TBM cutterhead and a rotary drive; the TBM cutterhead is a layered structure of the upper and lower cutterheads; the TBM cutterhead includes a mechanical cutterhead and a water jet cutterhead; the mechanical cutterhead is located outside the water jet cutterhead; the mechanical cutterhead and the rotary drive Connection; the mechanical cutter head is a radial plate structure; the mechanical hob structure is installed on the radial plate; there is a gap between the radial plates; the high-pressure water jet structure is installed on the water jet cutter head; the mechanical cutter head is driven by the rotary drive to rotate When the mechanical cutter head rotates until the gap between the spoke plates coincides with the high-pressure water jet structure, the high-pressure water jet is ejected from the high-pressure water jet structure to perform directional drilling on the rock mass; when the mechanical cutter head rotates to the gap between the spoke plates and the high-pressure water jet When the jet structure is staggered, the high-pressure water jet structure stops spraying. The invention has the advantages of improving the crushing effect of rocks, increasing the rock-breaking efficiency and reducing the energy consumption of the rotary drive of the cutter head.

Description

technical field [0001] The invention relates to the field of underground engineering, in particular to the application of high-pressure water jet rock breaking technology in the field of TBM tunnel construction, more specifically, it is a TBM device with inner and outer cutter heads based on pulse jet + point treatment. Background technique [0002] Tunnel boring machine (TBM) has excellent features such as safety, environmental protection, and high efficiency, and is widely used in many tunnel construction projects such as hydraulic tunnels, mine roadways, traffic tunnels, and pipeline defense. However, since the development of TBM, it has changed from the traditional hand-held, mechanical, closed-chest and the current intelligent control integrated TBM equipment. The rock-breaking method of its mechanical hob rolling and crushing rock has not undergone fundamental changes. At the same time, it also restricts the improvement of the rock-breaking efficiency of TBM. [0003]...

AI Technical Summary

Problems solved by technology

However, the arrangement of high-pressure water jets on the TBM cutter head is single, and the rock crushing effect is not good; and the existing TBM consumes a lot of energy to drive the cutter head to rotate

Images