Adjustment structure of hob installation position for full-face hard rock tunnel boring machine

A tunnel boring machine and structure adjustment technology, applied in tunnels, mining equipment, earthwork drilling and mining, etc., can solve the problem that the installation height of the hob cannot be adjusted according to specific conditions, the installation height of the hob cannot be adjusted, and the wear of the TBM hob is limited etc., to avoid eccentric wear, shorten construction time, and increase the wearable amount

Inactive Publication Date: 2016-03-02
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different installation radii of different hobs on the TBM cutter head, the wear amount of each knife is different, and the phenomenon of eccentric wear will occur for a long time
At the same time, in order to avoid TBM vibration, the protruding cutter head of the disc hob is limited within a certain height, so that the wear amount of the TBM hob is limited
The existing hob installation structure cannot adjust the installation height of the hob, so that the installation height of the hob cannot be adjusted according to specific conditions, which increases the possibility of abnormal damage to the hob

Method used

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  • Adjustment structure of hob installation position for full-face hard rock tunnel boring machine
  • Adjustment structure of hob installation position for full-face hard rock tunnel boring machine
  • Adjustment structure of hob installation position for full-face hard rock tunnel boring machine

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Embodiment Construction

[0015] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0016] see Figure 1 ~ Figure 4 , a hob installation position adjustment structure for a full-section hard rock tunnel boring machine, comprising a hob support mandrel 6 and a support seat 5 thereof, the support seat 5 is fixed in the cutterhead mouth 8, and the support seat 5 is There are two supporting side plates 5-1 respectively corresponding to the two ends of the hob supporting mandrel 6, and each of the two supporting side plates 5-1 supports one of the hob supporting mandrel 6 The two ends of the hob supporting mandrel 6 are respectively connected to the supporting side plate 5-1 at the corresponding end through a mounting block 7, and the hob supporting mandrel 6 interferes with the mounting block 7 In cooperation, the mounting bloc...

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Abstract

The invention discloses a hob mounting position adjusting structure of a full face hard-rock tunnel boring machine. The hob mounting position adjusting structure comprises a hob supporting spindle and a supporting seat thereof. Two supporting side plates, which are respectively corresponding to two end portions of the hob supporting spindle, are arranged on the supporting seat. One end portion of the hob supporting spindle is supported on each of the two supporting side plates. Each of the two end portions of the hob supporting spindle is connected with the supporting side plate at the corresponding end through a mounting block. Each mounting block is a cylinder with three side faces, and the transverse section of each mounting block is an equilateral triangle. An axis of the hob supporting spindle deviates from the center of each mounting block. Through a corner of each mounting block, a supporting and clamping groove of each mounting block is formed in each supporting side plate, and a wedge block is fastened between one side face of each mounting block and one side wall of the corresponding supporting and clamping groove. The hob mounting position adjusting structure has the advantages that hob mounting height can be adjusted in a limited space, eccentric wear is avoided, accidental damage to tools is reduced, and service lives of the tools prolonged.

Description

technical field [0001] The invention belongs to the technical field of hard rock tunnel boring machine construction machinery, and in particular relates to a hob installation position adjustment structure of a full-section hard rock tunnel boring machine. Background technique [0002] The full-face hard rock roadheader (TBM) mainly relies on the disc-shaped hob installed on the cutter head to roll and break the rock formation on the excavation face. During the construction process, the cutting tool is a wearable part and needs to be replaced from time to time. Due to the different installation radii of different hobs on the TBM cutter head, the wear amount of each knife is different, and the phenomenon of partial wear will occur for a long time. At the same time, in order to avoid TBM vibration, the protruding cutter head of the disc-shaped hob is limited within a certain height, so that the wear amount of the TBM hob is limited. The existing hob installation structure can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/10
Inventor 任家宝刘建琴郭伟刘蒙蒙张斌
Owner TIANJIN UNIV
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