Detachable drill bit

A technology of drill bits and drill blades, which is applied in the field of detachable drill bits, can solve the problems of scrapped bits, cost reduction, and poor concentricity, etc., and achieves the effects of easy use, enlarged cutting area, and improved mining efficiency

Active Publication Date: 2015-11-18
济宁高新科达科技项目服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to save cost, many drill bits adopt welded shank structure. The original drill bit is made of carbide as a whole, and the rear drill shank is made of stainless steel, which greatly reduces the cost. However, due to the use of different materials, its dynamic concentricity is not as good a

Method used

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  • Detachable drill bit

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Example Embodiment

[0021] In view of the above-mentioned problems, the purpose of the present invention is to provide a detachable drill, adopting modular thinking, and divide the traditional integrated drill into three parts: detachable drill blade, drill shoulder and drill shank. When one part is damaged, it can be replaced separately. A spare drill blade is placed in the inner space of the drill handle, which is more convenient to use.

[0022] In order to achieve the above objectives, the present invention adopts the following technical solutions

[0023] Detachable drill bit, which includes: drill blade 1, first mounting hole 2, drill shoulder 3, blade 4, second mounting hole 5, drill shank 6, fixing hole 7, spare drill blade 8, fixing collar 9, fixing Shaft 10, external thread 11.

[0024] The upper part of the drill shoulder 3 is provided with a first mounting hole 2, the drill blade 1 passes through the first mounting hole 2 and is fixedly connected to the drill shoulder 3, the outer surface o...

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Abstract

The invention relates to the field of mining devices, in particular to a detachable drill bit. The detachable drill bit adopts modular design, the integrated drill bit is divided into a drill blade, a drill shoulder and a drillstock which are detachable, the drill blade, the drill shoulder and the drillstock can be individually replaced when one portion is damaged, a standby drill blade is arranged in the internal space of the drillstock, and the detachable drill bit is more convenient to use. The drill bit is modular, and the mining cost is reduced. The drill bit can be detached into several portions and is convenient to use. A standby drill bit is provided so that the mining devices can work continuously. The cutting area is enlarged, and mining efficiency is improved.

Description

technical field [0001] The invention relates to the field of mining equipment, in particular to a detachable drill bit. Background technique [0002] In mining equipment, the drill bit is a very important component, and the drill bit is the tool on the drill, drilling machine, and drilling machine. Can create holes in workpiece or rock. Existing drill bits mainly include twist drills, flat drills, deep hole drills, reaming drills, center drills, hollow drills, etc. [0003] When digging a hole, the drill bit rotates around the vertical axis and moves axially at the same time. The soil is cut under the action of the torque and axial force of the drill bit, and is destroyed and loosened under the action of the extrusion and centrifugal force of the working blades, forming a soil flow and pressing to the pit wall, and at the same time, it is lifted to the surface along the page. When the soil flow moves to the place where there is no pit wall, the broken soil is thrown aroun...

Claims

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Application Information

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IPC IPC(8): E21B10/62E21B10/43
Inventor 郑国荣郑柏林
Owner 济宁高新科达科技项目服务有限公司
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