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Core-drilling type hard alloy drill bit for polar ice rock interlayer

A cemented carbide and drill bit technology, used in drill bits, earthwork drilling, drilling equipment, etc., can solve problems such as difficult drilling and unsatisfactory coring effects.

Inactive Publication Date: 2016-04-20
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that ordinary ice drills or geological core drills are difficult to drill in the polar ice-rock interlayer and the coring effect is not ideal in the polar drilling and coring work process, and a kind of polar ice-rock interlayer is provided. Coring Carbide Drill Bits

Method used

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  • Core-drilling type hard alloy drill bit for polar ice rock interlayer
  • Core-drilling type hard alloy drill bit for polar ice rock interlayer
  • Core-drilling type hard alloy drill bit for polar ice rock interlayer

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Embodiment Construction

[0017] see figure 1 , figure 2 with image 3 Shown:

[0018] The polar ice-rock interlayer coring type cemented carbide drill bit provided by the present invention is provided with a TSP composite sheet cutting tool 2 on the top of the drill bit body 1, and the lower end of the TSP composite sheet cutting tool 2 is provided with an ice core snapping device 3, and the TSP composite sheet A clamping groove 4 is opened on the inner cavity wall of the lower drill body 1 of the chip cutting tool 2 , and a retaining spring 5 is arranged in the clamping groove 4 .

[0019] The outer side wall of the lower end of the TSP composite sheet cutting tool 2 is connected with a knife spring 6, and the knife spring 6 is arranged on the outside of the ice core breaker 3, and the drill body 1 provided with the ice core breaker 3 and the knife spring 6 A baffle 7 is provided on the outer wall.

[0020] The lower end of the jump ring 5 is provided with a spacer 8 .

[0021] There are six TS...

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Abstract

The invention discloses a core-drilling type hard alloy drill bit for a polar ice rock interlayer. A TSP (Thermal Stability Polycrystalline Diamond) composite sheet cutting tool is arranged at the top end of a drill bit body, an ice core breaker is arranged at the lower end of the TSP composite sheet cutting tool, a clamping groove is formed on the inner cavity wall of the drill bit body at the lower part of the TSP composite sheet cutting tool, and a clamp spring is arranged in the clamping groove. A knife-clamping spring is connected to the outer side wall of the lower end of the TSP composite sheet cutting tool and is disposed outside the ice core breaker, and a baffle plate is arranged on the outer side wall of the drill bit body, where the ice core breaker and the knife-clamping spring are arranged. The core-drilling type hard alloy drill bit for the polar ice rock interlayer has the beneficial effects that the core-drilling type hard alloy drill bit can effectively drill a core in the polar ice rock interlayer, the drilling efficiency is improved and the polar core-drilling progress can be accelerated.

Description

technical field [0001] The invention relates to a cemented carbide drill bit, in particular to a polar ice rock interlayer coring type cemented carbide drill bit. Background technique [0002] At present, in the process of drilling and coring in the polar regions, there are ice and rock mixed areas of several meters to tens of meters. The drilling and coring of this ice-rock interlayer is the key requirement for continuing to drill and coring deep into the polar subglacial rock formations. one. Ordinary ice drill bits are relatively sharp. When drilling into the ice-rock interlayer, the drill bit will wear a lot, the drilling effect is not ideal, and the coring method is not suitable. Due to the structural characteristics of the drill bit, the surface of the diamond is not exposed, which makes it difficult to drill in. The circlip is easy to slip during coring, and the coring effect is not good. Analyzing the existing coring carbide drill bit, the coring carbide drill bit ...

Claims

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Application Information

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IPC IPC(8): E21B10/04E21B10/48
CPCE21B10/04E21B10/48
Inventor 达拉拉伊帕维尔李枭杨成张晗刘刚李星辰刘安曹品鲁张楠马银龙高科
Owner JILIN UNIV