Drilling tool of rotary drilling rig and rotary drilling rig comprising same

A technology for rotary drilling rigs and drilling tools, applied in the directions of rotary drilling rigs, rotary drilling, drill bits, etc., can solve the problems of low construction efficiency, low efficiency of circumcision drilling, wear of the outer drill teeth of the rock-socketed sand bucket, etc. problems, to achieve the effect of improving construction efficiency

Inactive Publication Date: 2012-04-25
BEIJING SANY HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type drilling tools has two layers: one for cutting bars made from steel or other materials while another layer helps catch debris falling during excavation activities like tunneling operations. These improvements make this method more efficient than previous methods such as traditional tunnel boring machines.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the performance of rotating drills during drilling of big bore holes (large diameters) while integrally cutting and breaking rocks from them without causing damage or reducing their effectiveness due to wearing away on these parts.

Method used

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  • Drilling tool of rotary drilling rig and rotary drilling rig comprising same
  • Drilling tool of rotary drilling rig and rotary drilling rig comprising same
  • Drilling tool of rotary drilling rig and rotary drilling rig comprising same

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Embodiment Construction

[0031] The core of the present invention is to provide a drilling tool for rotary drilling rigs. The structural design of the drilling tool can integrate circumcision drilling and fishing slag under the premise of ensuring drilling efficiency, and finally can significantly improve construction efficiency. . In addition, another technical problem to be solved by the present invention is to provide a rotary drilling machine comprising the above-mentioned drilling tool.

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Please refer to figure 1 and figure 2 , figure 1 It is a structural schematic diagram of a drilling tool for a rotary drilling rig in an embodiment of the present invention; figure 2 for figure 1 Sectional view of the drilling tool used in the ro

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Abstract

The invention discloses a drilling tool of a rotary drilling rig. The drilling tool comprises a top plate (1) and a connecting block (2) connected with the top plate (1); the top plate (1) is connected with a first cylinder (3), a boring mud inlet (31) is formed in the first cylinder (3), and an openable bottom plate (4) is connected onto a bottom wall of the first cylinder (3); the top plate (1) is further connected with a second cylinder (5) sleeved outside the periphery of the first cylinder (1), the diameter of the second cylinder (5) is more than that of the first cylinder (3), and the bottom of the second cylinder (5) is provided with first drilling teeth (51); and the axial length of the first cylinder (3) is more than that of the second cylinder (5). For the structural design of the drilling tool, on the premise of the ensuring the drilling efficiency, the drilling tool integrates the functions of loop drilling and boring mud salvaging into a whole, so that the construction efficiency can be obviously increased finally. In addition, the invention further discloses a rotary drilling rig comprising the drilling tool.

Description

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Claims

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Application Information

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Owner BEIJING SANY HEAVY MASCH CO LTD
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