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Short-distance coincident section heading machine

A short-distance, roadheader technology, applied to mining equipment, earthwork drilling, tunnels, etc., to achieve the effects of refined equipment, dispersed disturbance, and local stress reduction

Active Publication Date: 2014-03-26
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to solve is to provide a short-distance coincident cross-section tunneling machine for technical problems such as subway passing stations and excavation of short-distance non-circular sections.

Method used

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  • Short-distance coincident section heading machine
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  • Short-distance coincident section heading machine

Examples

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Embodiment Construction

[0022] Such as figure 1 As shown, a short-distance overlapping cross-section tunneling machine is sequentially connected by a cutter head 1, a drive 2, a shield 3, a propulsion and support system, a tail support system 7, and a slag conveyor 8, and is controlled by a control system. The propulsion and support system is composed of two main beam propulsion shoe systems set in series, with two modes of excavation mode with step change and excavation mode without step change to deal with different surrounding rocks, and the arrangement of the spreader shoes in the main beam pusher shoe system The azimuth enables the roadheader to carry out multiple overlapping excavations, and each shoe has multiple pairs of shoe feet to disperse the local stress of the shoe on the rock and reduce the disturbance to the rock.

[0023] The cutter head 1 is a plane cutter head or a conical cutter head, and the cutter head 1 is connected with the ring of the drive 2 through a flange. The cutter head...

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Abstract

The invention discloses a short-distance coincident section heading machine. The short-distance coincident section heading machine is formed by connecting a cutterhead, a driving portion, a shield, a thrust and supporting system, a tail supporting system and a dreg outlet conveyor in sequence. The short-distance coincident section heading machine is characterized in that the thrust and supporting system comprises at least two main beam thrust supporting shoe systems, each main beam thrust supporting shoe system comprises a main beam, thrust oil cylinders and supporting shoes, the supporting shoes of each main beam thrust supporting shoe system are arranged in an X-shaped mode, and at least one pair of supporting shoe pins are arranged on each azimuth angle of each supporting shoe. According to the short-distance coincident section heading machine, due to the facts that the whole machine is reasonably designed, especially, the main beam thrust supporting shoe systems are designed in a modular mode, and the supporting shoes are designed, the purpose that repeated coincident section excavation is achieved, section excavation of subway station crossing is achieved, and a new idea is provided for development and improvement of other heading machines.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to a novel tunneling machine used for excavating subway stations and non-circular sections. Background technique [0002] For the excavation of non-circular sections, there are currently two methods: drill and blast method and full-section profiling excavation. Drilling and blasting construction is generally excavated by manual drilling or drilling with rock drills and blasting, which causes great damage and disturbance to the environment and poses great safety hazards. Especially for cities, coal mines, and areas with flammable and explosive gases, the use of drilling and blasting is restricted. The construction of the full-section profiling excavation method requires a full-section profiling roadheader and corresponding support measures. The investment cost of the whole machine is high, the equipment structure is complicated, the whole machine equipment i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
Inventor 李建斌张玉锋李普庆宁向可贺飞
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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