Test platform used in researching tunnel boring machine tool rock breaking mechanism

Abstract

The invention relates to a test platform used for researching a tool rock breaking mechanism of a tunnel boring machine. The test platform is characterized in comprising a bench, a frame, a servo motor, a hydraulic cylinder, a speed reducer, a dropping frame, a rotary frame, a tool rest, a tool, a fixture, and a rock box. The frame is fixed on the bench; the servo motor, the speed reducer, and the hydraulic cylinder are fixed in the frame; the servo motor is connected to the speed reducer; the speed reducer is connected to the rotary frame; the speed reducer is driven by the servo motor; the rotary frame is driven by the speed reducer through the servo motor; the hydraulic cylinder is connected to the dropping frame; the dropping frame is driven by the hydraulic cylinder; the dropping frame is connected with a guiding column; the tool rest is arranged on the rotary frame; the tool is arranged on he fixture on the tool rest; and the rock box is fixed on the bench and is arranged below the tool. The test platform is controlled by a PC machine. The test platform provided by the invention assists in providing a theoretical basis for digital design of a tunnel boring machine cutter-head tool. The test platform has a simple structure, and is convenient to operate.

Description

technical field [0001] The invention relates to a test platform, in particular to a test platform for research on the rock-breaking mechanism of a cutter head cutter system of a full-face tunnel boring machine (including TBM and shield). Background technique [0002] As an important construction equipment of underground engineering, full-face tunnel boring machine is closely related to geological adaptability. The safety and rapid construction of tunnel engineering depends on the overall high-efficiency rock breaking of the cutter head system. There is a lack of in-depth research on the overall high-efficiency rock-breaking mechanism of the cutterhead cutter in terms of the fracture form of the rock mass and the movement mode after the rock mass is broken. Due to the lack of theoretical guidance, the design of the cutterhead cutter is unreasonable, resulting in the failure of the cutterhead cutter in practice. Abnormal wear and tear causes a series of accidents such as surfa...

AI Technical Summary

Problems solved by technology

[0002] As an important construction equipment of underground engineering, the full-face tunnel boring machine is closely related to the geological adaptability. The safety and rapid construction of tunnel engineering depends on the overall efficient rock breaking of the cutter head system. In practice, the working principle of the cutter head tool, There is a lack of in-depth research on the overall high-efficiency rock-breaking mechanism of the cutterhead cutter in terms of the fracture form of the rock mass and the movement mode after the rock mass is broken. Due to the lack of theoretical guidance, the design of the cutterhead cutter is unreasonable, resulting in the failure of the cutterhead cutter in practice. Abnormal wear and tear, resulting in a series of accidents such as surface collapse and house cracking, resulting in a waste of human and material resources

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