Tool changing device for hobbing cutter of shield tunneling machine

Abstract

The invention discloses a tool changing device for a hobbing cutter of a shield tunneling machine. The tool changing device comprises a base, a moving bracket, a movable driving mechanism, and a clamp, wherein the moving bracket can be arranged on the base in a relative sliding manner in forward and backward directions; the movable driving mechanism is used for driving the moving bracket to sliderelative to the base; the clamp is used for clamping the hobbing cutter; the clamp comprises two groups of clamp bodies which can be matched with each other to clamp and fix the hobbing cutter; the two groups of clamp bodies can be arranged on the moving bracket in a relatively opening or relatively closing manner; and an opening and closing mechanism for driving the two groups of clamping bodiesto relatively open or close is also arranged on the moving bracket. The clamp is used for clamping and fixing the hobbing cutter, and then a lifting device is used for lifting and carrying the whole tool changing device; and therefore, the tool changing device improves the mechanization level in the construction process, solves the problem that changing the hobbing cutter has very high labor forcerequirement in the construction process of the shield tunneling machine, reduces the difficulty of assembling and dissembling the hobbing cutter, and is relatively accurate in positioning when the hobbing cutter is installed.

Description

technical field [0001] The invention relates to a hob cutter changing device for a shield machine. Background technique [0002] Shield tunnel boring machine, referred to as shield machine, is a special construction machine for tunnel excavation. Using shield machine for tunnel construction has the advantages of high automation, manpower saving, fast construction speed, one-time hole formation, no climate influence, and open When excavating, it can control ground subsidence, reduce the impact on ground buildings, and not affect water surface traffic when excavating underwater. In the case of long tunnel lines and large buried depths, it is more convenient to use shield machines for construction. Economically sound. [0003] When the hob of the existing shield machine is damaged during tunneling and needs to be replaced, after the fasteners between the old hob and the tool box are removed, it is necessary to use manpower to remove the old hob; when installing a new hob, it i...

AI Technical Summary

Problems solved by technology

However, a single hob is very heavy and cannot be moved by one person. When replacing the hob, the space in front of the shield machine cutter head is limited, and the space is also limited when multiple people work at the same time, which makes the tool change operation extremely inconvenient.

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