Impact drill bit of full-hydraulic reverse circulation drilling machine

An impact drill bit and reverse circulation technology, applied in drill bits, drilling equipment, earthwork drilling and other directions, can solve the problems of inability to achieve drilling operations, difficulty in drilling rock layers, large drill bit torque, etc., achieving good results and solving drill pipe problems. Damage, fast drilling effect

Inactive Publication Date: 2015-11-11
王乐康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when drilling in large-diameter rock formations, the torque of the drill bit is large, and when the power of the drilling rig is insufficient, it cannot be drilled. At the same time, due to the large torque of the drill pip

Method used

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  • Impact drill bit of full-hydraulic reverse circulation drilling machine
  • Impact drill bit of full-hydraulic reverse circulation drilling machine
  • Impact drill bit of full-hydraulic reverse circulation drilling machine

Examples

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Effect test

Embodiment 1

[0024] Embodiment 1 A percussion drill for a full hydraulic reverse circulation drilling rig includes a compression spring 1, a spring positioning sleeve 2, a stud 3, a lock nut 4, an impactor 5, a feed pipe weldment 6, a bolt 7, and a drill weldment piece 8 (eg Figure 1-9 shown);

[0025] a. Install the lower ends of the four studs 3 respectively in the four holes on the two connecting plates 16 of the drill weldment 8 and weld them ( figure 2 , Figure 6 );

[0026] b, the impactor 5 is a rectangular cylinder, the bottom of its two opposite faces each has a transverse rectangular groove 22, the lower end has a vibrating head 23, the interior of the impactor 5 is equipped with a motor, the motor The oil inlet 24 and the oil outlet 25 are on its top; when the motor was working, it drove the vibration head 23 to vibrate at high frequency up and down (as Figure 8 , Figure 9 shown);

[0027] The rectangular groove 22 is engaged with the two convex limit plates 13 on the...

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PUM

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Abstract

The invention provides an impact drill bit of a full-hydraulic reverse circulation drilling machine. The impact drill bit comprises compression springs, spring positioning sleeves, studs, locking nuts, an impactor, a conveying pipe welding assembly, bolts and a drill bit welding assembly. The impact drill bit has the advantages that the impact drill bit is scientific in design and unique in structure; the impactor and the drill bit welding assembly are smartly combined with each other, sufficient impact can be generated by the impactor to crush rock when large-aperture drilling operation is carried out on rock strata, accordingly, holes in the rock strata which are difficult to drill or cannot be drilled fundamentally can be easily drilled by the impact drill bit, and problems which urgently need to be solved in the industry for a long time can be solved; only little torque on drill pipes is generated by the impact drill bit, so that problems of insufficient power of an existing drilling machine and damage to existing drill pipes can be solved; excellent drilling service effects can be realized for geologic strata such as clay layers and sand layers by the impact drill bit of the full-hydraulic reverse circulation drilling machine, and the impact drill bit is particularly high in drilling speed and efficiency when used for drilling large-aperture holes in the rock strata.

Description

Technical field [0001] The invention is the field of drilling machine technology, involving a shock drill of a full hydraulic anti -circulating rig. Background technique [0002] At present, most of the drills used in the market are dragon door drills and three -wing straight drills, which are generally made by users.The main body of the drill is composed of 2 spiral blades. The alloy knife head is welded on it. The alloy knife head is staggered on the 2 spiral blades to reduce the drilling resistance and increase the number of cutting times.However, when the rock layer is drilled into the operation, the drill head torque is large and the drill motor is insufficient, and it cannot be drilled. At the same time, due to the large drill torque, it is easy to cause damage to the drill rod.These drills have good effects in drilling in clay layer, sand layer, etc., but it is difficult to drill in the rock layer and cannot even achieve drilling operations. Invention content [0003] In ...

Claims

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Application Information

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IPC IPC(8): E21B10/36
Inventor 王乐康付志成杨晓东于文
Owner 王乐康
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