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Design method for support ribs of ballast slipping plate of cutter head of full face rock tunnel boring machine

A design method and technology of supporting bars, applied in mining equipment, earth-moving drilling, tunnels, etc.

Inactive Publication Date: 2013-08-07
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention Aiming at the defects of the existing cutterhead design technology, a design method with supporting ribs on the cutterhead ballast sliding plate is invented

Method used

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  • Design method for support ribs of ballast slipping plate of cutter head of full face rock tunnel boring machine
  • Design method for support ribs of ballast slipping plate of cutter head of full face rock tunnel boring machine
  • Design method for support ribs of ballast slipping plate of cutter head of full face rock tunnel boring machine

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Embodiment Construction

[0039] The specific implementation of the present invention will be described in detail in conjunction with the accompanying drawings and technical solutions. During the working process of the full-face rock boring machine, the scraper is arranged around the cutter head, and the rock crushed by the hob falls to the bottom of the cutter head by its own weight. When the scraper passes through the bottom of the cutter head, it will scrape up this part of the rock The scraped rocks will fall onto the ballast slide plate, and the rock ballast will gradually overcome the friction between the ballast slide plate and the ballast slide plate during the rotation of the cutter head, and then fall along the ballast slide plate to the belt conveyor for discharge .

[0040] The ballast discharge system of the full-face rock boring machine has an important impact on the overall work efficiency. If the rock ballast cannot be discharged from the cutter head in time, the full-face rock roadhead...

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Abstract

The invention belongs to the field of design methods for a cutter head structure of a tunneling machine and particularly relates to a design method for support ribs of a ballast slipping plate of a cutter head of a full face rock tunnel boring machine. The design method takes the overall technical performance requirement of the cutter head, the construction requirement, and the requirement of the cutter head for quickly discharging ballast into consideration while ensuring maximal strength and rigidity of the cutter head. According to the design method, four L-shaped support ribs from first to fourth are welded at the part of the ballast slipping plate on the rear panel of the cutter head, and each L-shaped support rib has an L-shaped cross section and comprises an arc part and a straight plate part. Due to the adoption of the design method, given that the rock ballast can be smoothly discharged under given conditions, the cutter head is improved in strength, rigidity and stability, so that the cutter head of the tunneling machine has prolonged tunneling service life, the tunneling machine vibration is alleviated, the noise is reduced, and the engineering economic loss in is also reduced.

Description

technical field [0001] The invention belongs to the field of design method of cutterhead structure of roadheading machine, in particular to a design method of supporting rib at the cutterhead ballast plate of full-section rock roadheader. Background technique [0002] As one of the most important components of the full-face rock boring machine, the cutter head is the installation carrier for all rock breaking tools. The full-face rock roadheader may encounter different geological conditions during the excavation process, coupled with the influence of construction control parameters, the load on the cutter head is a typical random load. Under the action of random load, the vibration of the cutter head appears as random torsional vibration and lateral vibration of the forced elastic body. If the cutter head vibrates too much, it will not only affect its service life, but also affect its performance. Therefore, the reasonable design of the cutter head structure has a great in...

Claims

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Application Information

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IPC IPC(8): E21D9/087
Inventor 霍军周杨静孙伟
Owner DALIAN UNIV OF TECH
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