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Drilling stroke and pressure control system for vertical shaft sinking machine

A technology of pressure control and roadheader, which is applied to the automatic control system of drilling, drilling equipment, directional drilling, etc., and can solve the problem of improper control of the drilling process and drilling pressure of the excavation structure, complex cutter head structure, and affecting drilling efficiency, etc. question

Pending Publication Date: 2019-03-19
CHINA CONSTR UNDERGROUND SPACE +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current vertical underground space construction, the vertical shaft drilling rig uses a full-section cutterhead for construction. The cutterhead structure is complex and heavy. During construction, the drilling process and drilling pressure of the excavation structure are often improperly controlled, which affects the drilling efficiency.

Method used

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  • Drilling stroke and pressure control system for vertical shaft sinking machine

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Embodiment Construction

[0011] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0012] Such as figure 1 As shown, the drilling process and pressure control system for the sinking method shaft boring machine includes multiple synchronous winch systems, and the drilling speed is adjusted by controlling the flow rate of the synchronous hydraulic winch system to ensure the stable posture of the tunneling mechanism. It is distributed along the circumference of the shaft, corresponding to the multiple lifting positions on the shaft boring machine, and the multiple lifting positions are respectively arranged with movable pulleys 10; the synchronous winch system is composed of synchronous winch 1, wire rope 3 and bogie 8, and is set at the synchronous Two fixed pulleys 9 are installed on the bogie 8 on one side of the winch. One end of the steel wire rope is wound on the drum of the synchronous winch, an...

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Abstract

The invention discloses a drilling stroke and pressure control system for a vertical shaft sinking machine. The system comprises a plurality of synchronous winch systems, the synchronous winch systemsare peripherally distributed on the ground along a vertical shaft and in one-to-one correspondence to multiple lifting positions on the vertical shaft sinking machine, and movable pulleys are arranged at the lifting positions respectively. A plurality of groups of upper and lower limiting sensors as many as the synchronous winch systems are mounted on the inner side of a segment on the wall of the vertical shaft, and the upper and lower limiting sensors and coders of the synchronous winch systems are connected with a controller. Attitude stability of a tunneling structure can be guaranteed, perpendicularity in vertical shaft tunneling can be well controlled, high reliability and high accuracy in drilling stroke and pressure control are realized, and onsite utilization requirements can bewell met.

Description

technical field [0001] The invention relates to the technical field of shaft excavation construction machinery and equipment, in particular to a drilling process and pressure control system for a submerged shaft excavation machine. Background technique [0002] With the development of the national economy, the construction of urban rail transit and the construction of urban underground pipe corridors have developed rapidly in recent years. In the construction of underground projects, such as shield starting and receiving shafts, mining shafts, tunnel ventilation shafts, underground fortification shafts, underground parking lots, mine roadways, traffic tunnels and other underground engineering constructions, in order to ensure the smooth progress of construction, excavation tools are required. Shafts for transporting materials and ventilation. The upper end of the shaft is connected to the ground, and the lower end of the shaft is connected to the roadway or tunnel. Shaft e...

Claims

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Application Information

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IPC IPC(8): E21B7/00E21B7/04E21B44/02E21B45/00E21B47/06
CPCE21B7/00E21B7/04E21B44/02E21B45/00E21B47/06
Inventor 荆伟简海峰郑立宁曹立钢朱文汇吴永强胡熠邓亚丽胡怀仁史永胜
Owner CHINA CONSTR UNDERGROUND SPACE
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