Sizing intercepting rock core drilling tool

A core and drilling tool technology, which is applied in the field of cut-to-length core drilling tools, can solve problems such as fusion, and achieve the effect of reducing driving power and material consumption

Inactive Publication Date: 2013-03-27
禹畅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there is no equipment capable of combining

Method used

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  • Sizing intercepting rock core drilling tool
  • Sizing intercepting rock core drilling tool

Examples

Experimental program
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Embodiment Construction

[0014] Such as figure 1 In the shown cut-to-length core drilling tool, the lower part of the keyway inner core thread 1 of the drill tool is threadedly connected to the upper part of the drill bit, and the upper part of the upper sleeve thread 11 is connected to the lower part of the long core pipe thread, that is, the cut-to-length core drilling tool is A single part is connected in series between the long core tube and the drill bit.

[0015] The upper part of the top cutter body 6 is welded with the cutter head 9, and the lower part is loaded with the return spring 8. The cutter shaft 7 passes through the holes of the top cutter body 6 and the return spring 8, and is fixedly assembled at the shaft hole position of the inner core 2 of the keyway, and the O-shaped sealing ring is inserted into the keyway The position of the sealing ring 4 on the inner core 2.

[0016] The upper sleeve 10 is fixedly equipped with an insert 5 in the middle, the upper sleeve 10 and the keyway i...

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Abstract

The invention discloses a sizing intercepting rock core drilling tool, which belongs to the field of drilling, boring and manufacturing circular stone pillars. An inner core screw thread of a drilling tool key slot is connected with a screw thread at the upper part of a drill bit; a drilling tool upper sleeve screw thread is connected with a long core tube; a small section of long core tube is equivalently added in drilling; and the drilling tool is lifted within a set size, an embedded tool bit is enabled to act through the conversion of the resistance force, the friction force and the elastic force so as to transversely cut a rock core so as to extract the rock core. The drilling tool can be made into an independent part, a key slot inner core is connected with an upper sleeve spline, the lower plane of the upper sleeve is overlapped with the upper plane of the drill bit, and the drilling pressure and the torsion are transferred to implement the drilling. A retainer ring and the upper sleeve screw thread are connected with each other to lock a longitudinal gap, top cutter bodies are overlapped and rotated inside an insert, and the transverse cutting depth of the tool bit can be controlled. The drill bit is lifted, and precipitated sand and stone resist the drill bit, so that the spline slides, the insert and the top cutter bodies slide, two overlapped oblique surfaces are staggered so as to push the tool bit to transversely cut the rock core, and when the tool bit is continuously lifted, the broken rock core is lifted out of the ground.

Description

Technical field: [0001] The invention relates to a fixed-length cutting core drilling tool, in particular to a drilling tool for core-taking under rock geological conditions, which belongs to the field of drilling, forming holes and manufacturing round stone pillars. Background technique: [0002] The main task of geological exploration drilling is to obtain real and accurate core samples in order to objectively evaluate the mineral resource reserves to be explored; the drilling technology lies in the direct and economic benefits of hole diameter, drilling speed, power level, material consumption, etc. Hook; With the improvement of building structure requirements, there is more and more demand for round stone materials. The existing technology uses artificial synthesis in large quantities, and the traditional craft is to mine square stones and then use the original method of square to find the circle. So far, there is no equipment capable of combining different requirements ...

Claims

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Application Information

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IPC IPC(8): E21B25/10
Inventor 禹畅
Owner 禹畅
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