Combined rock breaking test device based on high-pressure water jet and cutter sequential operation and application

Abstract

The invention discloses a combined rock breaking test device based on high-pressure water jet and cutter sequential operation. The device comprises a cutterhead, a mechanical hob structure, a high-pressure water jet structure and a scraper structure, wherein the mechanical hob structure, the high-pressure water jet structure and the scraper structure are all installed on the cutterhead; the mechanical hob structure, the high-pressure water jet structure and the scraper structure are sequentially installed and arranged on the cutterhead according to the sequence that the high-pressure water jetstructure jets water jet to form a water jet cutting groove, the scraper structure broadens and deepens the water jet cutting groove and the mechanical hob structure rolls the water jet cutting groove; and the high-pressure water jet structure, the scraper structure and the mechanical hob structure form a working group in sequence. According to the invention, the problem that the grooving depth of the rock is small when the rock is cut by high-pressure water jet in a high-speed moving cutting state is solved; and the device has the advantages of high efficiency, low energy consumption, low abrasion, improvement of working face operation environment and the like. The invention further discloses application of the combined rock breaking test device based on high-pressure water jet and cutter sequential operation.

Description

technical field [0001] The invention relates to the field of tunnel and underground engineering, in particular to the field of combined rock-breaking test and the research field of rock-breaking mechanism, more specifically, it is a combined rock-breaking test device based on high-pressure water jet + cutter sequence operation. The invention also discloses the application of the combined rock-breaking test device based on the sequential operation of high-pressure water jet and cutter. Background technique [0002] The existing rock-breaking technology adopts the combined rock-breaking method of mechanical hob combined with high-pressure water jet. This type of rock-breaking method first forms a groove with a certain depth d1 on the rock through high-pressure water jet, and then has a mechanical hob to roll two adjacent rocks. The local block formed by the tank insulation. The limitation of this type of combined rock breaking is that for practical projects, high-pressure wat...

AI Technical Summary

Problems solved by technology

[0004] Therefore, there is an urgent need to develop a rock-breaking device that deepens the depth of the water jet cutting groove, has a reasonable structure, and has a good rock-breaking effect, so as to overcome the impact of high-pressure water jet cutting on rocks (especially hard rock and extremely hard rock) under the state of high-speed moving cutting. The engineering problem that the cutting depth of rock) is shallow

Images