CN213419026U

CN213419026U - Composite sheet drill bit

Info

Publication number: CN213419026U
Application number: CN202022531569.4U
Authority: CN
Inventors: 陈衡
Original assignee: Hunan Zhuoer Drilling Tool Co Ltd
Current assignee: Hunan Zhuoer Drilling Tool Co Ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-06-11
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a compound piece drill bit, including the drill bit body, drill bit body top is equipped with the multiunit cutting teeth, the interval sets up between the adjacent cutting teeth, and the interval is the same, and be equipped with the mouth of a river between the adjacent cutting teeth, the mouth of a river below is equipped with first guiding gutter, the cutting teeth inner wall is equipped with the second guiding gutter, first compound piece is still installed to the cutting teeth lateral wall, first compound piece is located mouth of a river top, the compound piece of second is installed to drill bit body outer wall, drill bit body outer wall is equipped with the steel body layer, the steel body layer is located the compound piece below of second, when expecting to solve current diamond bit and boring into the stratum at the drill bit, diamond compound skin easily wears out, the drilling rate is low, influence the.

Description

Composite sheet drill bit

Technical Field

The utility model relates to a drill bit, more specifically the utility model discloses mainly relate to a compound piece drill bit.

Background

The diamond compact is a composite material synthesized by the diamond layer and the hard alloy matrix under the conditions of high temperature and high pressure, has the characteristics of better wear resistance and better impact resistance compared with the traditional diamond drill bit, and can obtain better mechanical drilling speed and operation efficiency.

The bit of a general plane-tooth-distributed bit is in contact with a rock stratum at the same time, so that the pressure intensity is low, the drilling capability is weak, the efficiency of the bit for drilling the hard rock stratum is reduced, and when the bit drills the stratum, the diamond composite skin is easy to wear, the drilling speed is low, and the service life of the bit is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to solve one of the purposes, provides a compound piece drill bit to when expecting to solve current diamond bit and boring the stratum at the drill bit, diamond-impregnated skin easily wears out, and the drilling speed is low, influences the life's of drill bit problem.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a compound piece drill bit, including the drill bit body, drill bit body top is equipped with the multiunit cutting teeth, and is adjacent the interval sets up between the cutting teeth, and the interval is the same, and is adjacent be equipped with the mouth of a river between the cutting teeth, the mouth of a river below is equipped with first guiding gutter, the cutting teeth inner wall is equipped with the second guiding gutter, first compound piece is still installed to the cutting teeth lateral wall, first compound piece is located the mouth of a river top, the compound piece of second is installed to drill bit body outer wall, drill bit body outer wall is equipped with the steel body layer, the steel body layer is located compound piece below of second.

Preferably, the further technical scheme is as follows: the first diversion trench is located on the outer wall of the drill bit body and communicated with the water gap.

The further technical scheme is as follows: the top of the cutting tooth is provided with an inclined plane, an included angle between the inclined plane and the water gap is 60-90 degrees, and the inclined plane is provided with a wear-resistant layer.

The further technical scheme is as follows: the first guide grooves and the second guide grooves are parallel to each other and are the same as the axial direction of the drill bit body, and the number of the first guide grooves is the same as that of the second guide grooves.

The further technical scheme is as follows: the water gaps are the same as the cutting teeth in number and are U-shaped.

The further technical scheme is as follows: the second composite sheet is located on the outer wall of the cutting tooth.

The further technical scheme is as follows: the bottom of the drill bit body is provided with an external thread, and the external thread is located below the first diversion trench.

Compared with the prior art, one of the beneficial effects of the utility model is that: through at drill bit body outer wall installation steel body layer to install the steel body layer between adjacent first guiding gutter, be used for improving the life of drill bit body, install first compound piece through the embedding at the cutting teeth outer wall, be used for protecting the footpath through first compound piece, improve the efficiency of abolishing to the cobble simultaneously, promote drilling rate.

Drawings

Fig. 1 is a schematic diagram illustrating a composite compact drill bit according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view illustrating a cross section of a drill body according to another embodiment of the present invention.

In the figure, 1 is the drill bit body, 2 is the cutting teeth, 3 is the mouth of a river, 4 is first guiding gutter, 5 is the second guiding gutter, 6 is first compound piece, 7 is the compound piece of second, 8 is the steel body layer, 9 is the wearing layer.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present invention is a composite sheet drill bit, including a drill bit body 1, a plurality of sets of cutting teeth 2 are disposed on the top of the drill bit body 1, the number of the cutting teeth 2 can be any number greater than two, and can be specifically set according to actual conditions, the adjacent cutting teeth 2 are spaced at the same interval, and the interval is the same, so as to improve the drilling efficiency of the drill bit body 1, meanwhile, a water gap 3 is disposed between the adjacent cutting teeth 2, so that water is discharged from the water gap 3 during the flushing process of the drill bit body 1 during drilling, so as to improve the drilling efficiency, by disposing a first diversion trench 4 below the water gap 3, so that the flushed water is discharged from the first diversion trench 4 through the water gap 3, and simultaneously, a second diversion trench 5 is disposed on the inner wall of the cutting teeth 2, and water in the drill bit body 1 can be discharged through the second diversion trench 5, the drilling efficiency is improved, by installing the first composite sheet 6 on the side wall of the cutting tooth 2, and the first composite sheet 6 is positioned above the water gap 3, is used for improving the wear resistance of the drill bit body 1 in the drilling process and improving the hardness and the impact toughness of the drill bit body 1 through the first composite sheet 6, and meanwhile, the outer wall of the drill bit body 1 is provided with a second composite sheet 7, the second composite sheet 7 is embedded in the outer wall of the drill bit body 1 and is used for improving the wear resistance of the outer wall of the drill bit body 1, meanwhile, the pebble breaking efficiency is improved, the drilling speed of the drill bit body 1 in the working process is improved, the service life of the drill bit body 1 is prolonged, and through install steel body layer 8 at the aforesaid drill bit body 1 outer wall, and aforesaid steel body layer 8 is located the aforesaid second compound piece 7 below for improve the life of drill bit body 1 through steel body layer 8.

Referring to fig. 1 and fig. 2, in another embodiment of the present invention, in order to improve the efficiency of the bit body 1 during the drilling process, the first guiding gutter 4 is located on the outer wall of the bit body 1, and the first guiding gutter 4 is communicated with the water gap 3, so as to flush the drill bit body 1 with water during the drilling process, and discharge the flushed sewage from the first guiding gutter 4 through the water gap 3, thereby improving the efficiency of the bit body 1 during the drilling process.

Referring to fig. 1, in another embodiment of the present invention, in order to prolong the service life of the drill bit body 1, the top of the cutting teeth 2 is provided with an inclined plane, the included angle between the inclined plane and the nozzle 3 is 60 ° to 90 °, in this embodiment, the included angle between the inclined plane and the nozzle 3 is set to 75 °, so as to improve the cutting efficiency of the drill bit body 1, and meanwhile, the wear-resistant layer 9 is installed on the inclined plane, so as to improve the drilling speed of the drill bit body 1 during the drilling process.

Referring to fig. 1, in another embodiment of the present invention, in order to improve the drilling efficiency of the drill bit body 1 during the drilling process, the first diversion trench 4 is parallel to the second diversion trench 5 and is the same as the axial direction of the drill bit body 1, so as to avoid the occurrence of the core blocking phenomenon, improve the footage for the second time, and the first diversion trench 4 is the same as the second diversion trench 5 in number, so as to improve the drainage efficiency of the drill bit body 1 during the drilling process.

Referring to fig. 1, in another embodiment of the present invention, the number of the water gaps 3 is the same as that of the cutting teeth 2, and the water gaps 3 are U-shaped for improving the slag discharging efficiency of the drill bit body 1 during operation and improving the smoothness of slag discharging.

Referring to fig. 1, in another embodiment of the present invention, the bottom of the drill bit body 1 is provided with an external thread, and the external thread is disposed below the first diversion trench 4, so as to facilitate the installation and the disassembly of the drill bit body 1, and improve the convenience of the assembly and disassembly of the drill bit body 1.

Referring to fig. 1 and 2, in another embodiment of the present invention, the steel body layer 8 is located between adjacent first guiding grooves 4, and the steel body layer 8 and the drill bit body 1 form an integral structure for prolonging the service life of the drill bit body 1 and improving the drilling efficiency.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A composite sheet drill bit includes a drill bit body (1), characterized in that: drill bit body (1) top is equipped with multiunit cutting teeth (2), and is adjacent the interval sets up between cutting teeth (2), and the interval is the same, and is adjacent be equipped with mouth of a river (3) between cutting teeth (2), mouth of a river (3) below is equipped with first guiding gutter (4), cutting teeth (2) inner wall is equipped with second guiding gutter (5), first compound piece (6) are still installed to cutting teeth (2) lateral wall, first compound piece (6) are located mouth of a river (3) top, the compound piece (7) of second are installed to drill bit body (1) outer wall, drill bit body (1) outer wall is equipped with steel body layer (8), steel body layer (8) are located the compound piece (7) below of second.

2. The compact bit of claim 1, wherein: the first diversion trench (4) is located on the outer wall of the drill bit body (1), and the first diversion trench (4) is communicated with the water gap (3).

3. The compact bit of claim 1, wherein: the top of the cutting tooth (2) is provided with an inclined plane, an included angle between the inclined plane and the water gap (3) ranges from 60 degrees to 90 degrees, and the inclined plane is provided with a wear-resistant layer (9).

4. The compact bit of claim 1, wherein: the first guide grooves (4) and the second guide grooves (5) are parallel to each other and are the same as the axial direction of the drill bit body (1), and the number of the first guide grooves (4) is the same as that of the second guide grooves (5).

5. The compact bit of claim 1, wherein: the number of the water gaps (3) is the same as that of the cutting teeth (2), and the water gaps (3) are U-shaped.

6. The compact bit of claim 1, wherein: the second composite sheet (7) is located on the outer wall of the cutting tooth (2).

7. The compact bit of claim 1, wherein: the drill bit body (1) is provided with an external thread at the bottom, and the external thread is located below the first diversion trench (4).