Automatic tool changer for cutter head of shield tunneling machine

Abstract

The invention provides an automatic tool changer for a cutter head of a shield tunneling machine. The changer comprises a box, a rotating tool-carried shaft is arranged inside the box, a coaxial ratchet wheel is fixedly arranged at one end of the tool-carrier shaft, multiple tools are arranged on the side wall of the tool-carried shaft and located on the same vertical plane, and tool notches are formed in the box and correspond to the tools in position. The tool-carried shaft, the tools, the ratchet wheel, a pushing oil cylinder, a clamping jack and a pushing jack are used in cooperation, in this way, an automatic tool change technology is realized, the problems are solved that when tools are changed manually, operation is inconvenient in a narrow and small space, and an operator easily falls off, collides and gets hurt when the tools are changed, meanwhile, the tool change shutdown time of the shield tunneling machine is substantially shortened, and the efficiency of construction engineering is effectively improved.

Description

technical field [0001] The invention belongs to the field of tunnel boring shield machines, and in particular relates to an automatic tool changing device for a shield machine cutter head. Background technique [0002] Under the existing technical conditions, the cutter head is located at the front end of the shield machine, which is used to directly contact the soil layer or rock, and withstand relatively large pressure and torsion. The front end face and side cylinder face of the cutter head are surrounded by soil or rocks, and the rear end face is connected with the front shield and the main drive to form a closed space. Since the cutter head is subjected to a greater force, the supporting ribs of the cutter head are more and thicker, resulting in a narrow space. At the same time, the space environment is also the worst. The excavated soil or gravel are accumulated in the space between the cutter head and the front shield. The dust and mud are thick, and operators are pr...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose an automatic tool changer for the shield machine cutter head, which uses a shaft with a knife, a tool, a ratchet, a push cylinder, a clamping jack, and a push jack to realize an automatic tool change process and effectively solve the problem. It eliminates the inconvenience of manual tool change in a small space, and the operator is prone to fall and collision injuries when changing the tool. At the same time, it greatly reduces the downtime of the shield machine for tool change, and effectively improves the efficiency of construction projects.

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