Adjustable multi-hob rock cutting fragmentation test means

Abstract

The invention relates to an adjustable multi-hob rock cutting fragmentation test device for the field of tunnel project. Being characterized in that the soil warehouse is provided on a guiding track achieving the vertical movement by the vertically-moving hydraulic cylinder; the soil warehouse is provided on the soil warehouse supporting base for achieving the transverse movement by the transverse hydraulic cylinder fixed on the soil warehouse base; the soil warehouse has the rock soil samples; two sides of the soil warehouse are provided with four pillars leaning against the beams and forming a rectangular frame structure. The lower position of the fixed beams of the vertical movement of two synchronized hydraulic cylinders for the realization of the vertical plate hob feed, vertical hydraulic cylinder mounting bracket for the following connection hob, for the realization of more than the fixed plate hob; mounting bracket Three-axis with the following sensors, hob plate connected to the force sensor in the bottom three of the hob seat, using industrial computer, data acquisition cards, the pressure of traffic and other sensors, such as high-speed digital camera system to test the disk-shaped roll knife load rock, broken rock and soil characteristics.

Description

technical field [0001] The invention relates to a simulated cutting test device for shield tunneling cutters used in the fields of tunnel engineering, underground engineering and water diversion engineering, in particular to an adjustable multi-cutter rock breaking test device. Background technique [0002] The disc-shaped hob is the main tool for breaking rocks on the shield machine. Its rock-breaking mechanism is to crush rocks by impact during leap forward and shear and crush rocks after compression. When tunneling under different geological conditions and different working parameters, the wear failure of the cutting tool is different. Due to the failure of the cutter, it is required to replace the cutter during the excavation process. This process is not only a heavy workload but also very dangerous. Therefore, it is necessary to study the load characteristics of the hob, especially when multiple disc hobs are combined to cut broken rock and soil, and the rock Analyze t...

AI Technical Summary

Problems solved by technology

The Colorado School of Mines produced a Linear Cutting Machine (Linear Cutting Machine), and the Northeast Institute of Technology developed its own rock-breaking test-bed, but their test-beds were limited to research on the performance of a single hob cutting broken rocks, and could not Research on the cutting characteristics of multiple hobs, especially the cutter group composed of multiple hobs on the shield cutterhead

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