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TBM disk-shaped hobbing cutter additionally provided with reinforcement ribs on side face of cutter ring

A technology of disc-shaped hobs and reinforcing ribs, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of cutter ring wear, low strength, and cutter ring cracking, so as to reduce the eccentric wear of the cutter ring and reduce wear and damage, reduce the effect of the knife circle cracking

Pending Publication Date: 2019-12-17
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength of the working surface of the conventional cutter ring is low and the rotation of the cutter cannot be guaranteed, so that the cutter ring is severely worn, and the lower strength makes the cutter ring crack seriously, and the cutter cannot guarantee the rotation, resulting in partial wear and polygonal wear of the cutter ring As the complexity increases, conventional cutter rings can no longer meet the reliability and economical requirements of shield machines

Method used

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  • TBM disk-shaped hobbing cutter additionally provided with reinforcement ribs on side face of cutter ring
  • TBM disk-shaped hobbing cutter additionally provided with reinforcement ribs on side face of cutter ring
  • TBM disk-shaped hobbing cutter additionally provided with reinforcement ribs on side face of cutter ring

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0031] Please refer to figure 1 , this embodiment provides a TBM disc hob with reinforcing ribs added to the side of the cutter ring 1, which includes: a cutter ring 1, a retaining ring 2, a cutter body 3, a bearing end cover 4, an isolation ring 5, a shaft 6, and a bearing 7 and a sealing ring 8; the side of the knife ring 1 is provided with a plurality of reinforcing ribs, the knife ring 1 is arranged on the outer peripheral side of the knife body 3, the retaining ring 2 positions the knife ring 1 at the position of the knife body 3, the bearing 7 is assembled on the shaft 6 and Located inside the cutter body 3, the bearing end cover 4 seals the bearing 7 inside, the spacer ring 5 separates the bearing 7, and the sealing ring 8 seals the gap between the bearing end cover 4 and the cutter body 3; the cutter ring 1 adds a reinforcing rib structure Realize the improvement of the strength of the cutter ring 1, and at the same time ensure that the hob can rotate effectively durin...

no. 2 example

[0035] The second embodiment is partly the same as the first embodiment, except that the reinforcing ribs of the cutter ring 1 are arranged in a distributed manner.

[0036] Please refer to figure 1 , Figure 4 and Figure 5 , this embodiment provides a TBM disc hob with reinforcing ribs added to the side of the cutter ring 1, which includes: a cutter ring 1, a retaining ring 2, a cutter body 3, a bearing end cover 4, an isolation ring 5, a shaft 6, and a bearing 7 and a sealing ring 8; the side of the knife ring 1 is provided with a plurality of reinforcing ribs, the knife ring 1 is arranged on the outer peripheral side of the knife body 3, the retaining ring 2 positions the knife ring 1 at the position of the knife body 3, the bearing 7 is assembled on the shaft 6 and Located inside the cutter body 3, the bearing end cover 4 seals the bearing 7 inside, the spacer ring 5 separates the bearing 7, and the sealing ring 8 seals the gap between the bearing end cover 4 and the cu...

no. 3 example

[0040] The third embodiment is partly the same as the first embodiment, except that the reinforcing ribs of the cutter ring 1 are arranged in a distributed manner.

[0041] Please refer to figure 1 , Figure 6 and Figure 7 , this embodiment provides a TBM disc hob with reinforcing ribs added to the side of the cutter ring 1, which includes: a cutter ring 1, a retaining ring 2, a cutter body 3, a bearing end cover 4, an isolation ring 5, a shaft 6, and a bearing 7 and a sealing ring 8; the side of the knife ring 1 is provided with a plurality of reinforcing ribs, the knife ring 1 is arranged on the outer peripheral side of the knife body 3, the retaining ring 2 positions the knife ring 1 at the position of the knife body 3, the bearing 7 is assembled on the shaft 6 and Located inside the cutter body 3, the bearing end cover 4 seals the bearing 7 inside, the spacer ring 5 separates the bearing 7, and the sealing ring 8 seals the gap between the bearing end cover 4 and the cut...

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Abstract

The invention discloses a TBM disk-shaped hobbing cutter additionally provided with reinforcement ribs on the side face of a cutter ring. The cutter ring, a check ring, a cutter body, a bearing end cover, an isolating ring, a shaft, a bearing and a sealing ring are included; the multiple reinforcement ribs are arranged on the side face of the cutter ring which is arranged on the peripheral side ofthe cutter body; the check ring is used for positioning the cutter ring at the position of the cutter body; the bearing is assembled on the shaft and located on the inner side of the cutter body; thebearing end cover is used for sealing the bearing inside; and the isolating ring is used for dividing the bearing; and the sealing ring is used for sealing a gap between the bearing end cover and thecutter body. The structure can be used for effectively reducing abrasion and damage of the hobbing cutter in work, the rock breaking capacity of the hobbing cutter is improved, the reliability and the economical efficiency of the hobbing cutter are improved, the work cost of a tunnel boring machine can be lowered easily, and very high practical value and application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of reducing tool wear and damage, in particular to a TBM disc-shaped hob with reinforcing ribs added to the side of the knife ring. Background technique [0002] Since the emergence of TBM technology, hob wear has always been the main reason affecting the working efficiency of the shield machine. During the friction and collision between the cutter ring and the rock and soil, the wear mode of the cutter ring is mainly normal wear, Eccentric wear, polygonal wear, cutter ring cracking, etc. The strength of the working surface of the conventional cutter ring is low and the rotation of the cutter cannot be guaranteed, so that the cutter ring is severely worn, and the lower strength makes the cutter ring crack seriously, and the cutter cannot guarantee the rotation, resulting in partial wear and polygonal wear of the cutter ring As the complexity increases, the conventional cutter ring can no longer meet the rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08E21D9/087
CPCE21D9/08E21D9/087
Inventor 王战江王一博周仲荣李建斌郑靖张蒙祺
Owner SOUTHWEST JIAOTONG UNIV
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