Six-main-beam cutterhead center hob mounting structure and six-main-beam cutterhead

A technology for installing structures and hobs, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of low excavation efficiency, small bearing capacity of shield cutter heads, and tool wear, so as to improve excavation efficiency and excavation capacity, Enhance the effect of rock-breaking ability and bearing capacity, bearing capacity and rock-breaking ability
CN111663949APending Publication Date: 2020-09-15中铁工程装备集团盾构制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中铁工程装备集团盾构制造有限公司
Publication Date
2020-09-15

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Abstract

The invention relates to the technical field of engineering equipment special for tunnels, in particular to a six-main-beam cutterhead center hob mounting structure. The six-main-beam cutterhead center hob mounting structure comprises a cutterhead, a center hob set is arranged in the center of the front end face of the cutterhead, the center hob set comprises a first hob module, a second hob module, a third hob module and a fourth hob module, the four hob modules are in a cross shape, the hob axis of the fourth hob module deflects towards one side by an angle theta to provide arrangement spacefor a front face hob set, the arrangement number of front face hobs is increased, the hob size of the front hob set is larger than the hob size of the center hob set; and a six-main-beam cutterhead comprises the six-main-beam cutterhead center hob mounting structure. According to the six-main-beam cutterhead center hob mounting structure, the arrangement number of the front face hobs can be increased, and due to the fact that the front face hobs are larger in size and higher in bearing capacity and rock breaking capacity, the rock breaking capacity and the bearing capacity of a center area ofthe cutterhead are enhanced, and then the tunneling efficiency and the tunneling capacity of the cutterhead are improved.
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Description

technical field

[0001] The invention relates to the technical field of special engineering equipment for tunnels, in particular to a center hob installation structure of six main beam cutter heads and six main beam cutter heads. Background technique

[0002] In the field of underground engineering, the application of shield tunneling method is more and more widely, especially in the construction of subway tunnels, the advantages of shield tunneling method construction are particularly significant. The cutter head is one of the key components on the shield machine, and it directly undertakes the task of excavating the tunnel face. High-strength hard rock stratum is a stratum that is difficult to excavate. When the cutterhead is digging into this stratum, the following problems are likely to occur: First, the cutter of the shield cutterhead is severely worn, prone to abnormal damage, and even tool drop Therefore, the replacement frequency of the cutter is relatively high; sec...

Claims

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