Drill bit with anti-falling alloy sheet

Abstract

The utility model relates to the technical field of drill bits, in particular to a drill bit with an anti-falling alloy sheet, which comprises a drill bit, an auxiliary component matched with the drill bit to be taken out is arranged in the drill bit, the auxiliary component comprises a turntable arranged in the drill bit, and four cavities are arranged outside the turntable. Springs and connecting rods are arranged in the four cavities, alloy sheets are arranged at the other ends of the connecting rods, threaded layers are arranged on the outer walls of two of the alloy sheets, hole grooves are formed in the upper ends and the lower ends of the four alloy sheets, arc-shaped blocks are arranged in the hole grooves, and two through grooves are formed in the outer wall of the drill bit. And locking grooves are formed in the inner walls of the two through grooves. According to the drill bit, the lines, abutting against a drill hole, of the surface of the drill bit are changed, the drill bit generates force opposite to the drill hole when continuously rotating, and therefore the drill bit is rotationally taken out, the drill bit smoothly retreats conveniently, and the falling probability of the drill bit is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a drill bit with an anti-stripping alloy sheet. Background Art

[0002] The drill bit is one of the commonly used tools in the oil, gas, coal and other industries. It is mainly used to drill deep underground rock formations to obtain fossil fuels. The main function of the drill bit is to penetrate the formation by cutting and wearing on the surface of the rock, so as to achieve the purpose of mining. The quality of the drill bit directly affects the efficiency and safety of drilling, so it is very important to design and manufacture high-quality drill bits.

[0003] However, in the current existing technology, vibrations will be generated during the drilling of the rock layer, which will cause broken stones in the borehole to fall onto the drill bit. When the drill bit is withdrawn from the borehole, the broken stones will be stuck in the gap between the drill bit and the borehole, thereby affecting the angle of the drill bit, causing it to be stuck with the inner wall of the rock layer in the borehole and difficult to remove. When the drill bit is withdrawn with great force, the drill bit will be separated from the drive shaft due to sticking and fall into the borehole, affecting normal construction. Utility Model Content

[0004] The utility model aims to provide a drill bit with an anti-stripping alloy sheet to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A drill bit with an anti-slip alloy sheet comprises a drill bit, wherein an auxiliary component for cooperating with the drill bit to be removed is arranged inside the drill bit, wherein the auxiliary component comprises a turntable arranged inside the drill bit, wherein four cavities are arranged outside the turntable, wherein springs and connecting rods are arranged inside the four cavities, wherein an alloy sheet is arranged at the other end of the connecting rod, wherein the outer walls of two of the alloy sheets are arranged with threaded layers, the upper and lower ends of the four alloy sheets are arranged with hole grooves, wherein arc blocks are arranged inside the hole grooves, the outer wall of the drill bit is arranged with two through grooves, and the inner walls of the two through grooves are arranged with locking grooves.

[0007] As a preferred solution of the utility model, the turntable is located inside the drill bit and is rotatably connected to the inner wall of the drill bit via a connecting shaft, and the four cavities are distributed in an annular manner on the outer wall of the turntable.

[0008] As a preferred solution of the utility model, one end of the connecting rod is located in the cavity and is slidably connected to the inner wall of the cavity through a slide rail, the other end of the connecting rod extends outside the cavity and is connected to the alloy sheet through a bolt, the spring is located in the cavity, and both ends are connected to the inner wall of the cavity and the connecting rod respectively through welding.

[0009] As a preferred solution of the utility model, two of the alloy sheets can be embedded in the through grooves, and the outer walls of the other two alloy sheets are welded to the threaded layer, and the texture of the threaded layer is opposite to the texture of the outer wall of the drill bit.

[0010] As a preferred solution of the utility model, one end of the four alloy sheets is an arc-shaped structure and the other end is a right-angle structure. After the alloy sheet is embedded in the through slot, it can only rotate toward the arc-shaped end to escape from the through slot.

[0011] As a preferred solution of the utility model, the arc block is located in the hole groove and is slidably connected to the inner wall of the hole groove through a slide rail. The end of the arc block away from the hole groove is an arc structure and can extend into the lock groove inside the through groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are: in response to the problems raised in the background technology, the present application adopts an auxiliary component, which enables the turntable to rotate inside the drill bit by energizing the drill bit, so that the alloy sheet outside the turntable is switched in the through groove, and the alloy sheet with a threaded layer installed on the outside is rotated and embedded in the through groove, and the threaded layer protrudes from the outside of the drill bit and contacts the inner wall of the borehole. The texture of the threaded layer is opposite to the texture of the drill bit itself, so that when the drill bit continues to rotate, the contact between the threaded layer and the borehole will generate an upward thrust, so that it can be taken out from the borehole, and the drill bit continues to rotate to affect the angle of the crushed stone, which makes it easy to completely remove the drill bit.

[0013] The utility model realizes changing the pattern of the drill bit surface abutting against the drill hole, so that the drill bit generates a force opposite to the drill hole when it continues to rotate, thereby rotating and taking it out, facilitating the smooth withdrawal of the drill bit and reducing the probability of the drill bit falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the appearance structure diagram of the drill bit of the utility model;

[0015] Figure 2 This is a top sectional view of the drill bit of the utility model;

[0016] Figure 3 This is the internal structure diagram of the drill bit of the utility model;

[0017] Figure 4 This is an enlarged view of part A of the utility model;

[0018] Figure 5 This is the appearance structure diagram of the alloy sheet of the utility model.

[0019] In the figure: 1, drill bit; 2, turntable; 3, cavity; 301, spring; 4, connecting rod; 401, alloy sheet; 5, threaded layer; 6, hole groove; 601, arc block; 7, through groove; 701, lock groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.

[0021] Example

[0022] See also Figure 1-5 The utility model provides a technical solution: a drill bit with an anti-slip alloy sheet, comprising a drill bit 1, wherein the drill bit 1 is provided with an auxiliary component for cooperating with the drill bit 1 to be taken out, wherein the auxiliary component comprises a turntable 2 arranged inside the drill bit 1, and the connecting shaft can be powered on and driven by a PLC controller to rotate the turntable 2, and four cavities 3 are arranged outside the turntable 2 for allowing a connecting rod 4 to be retracted, and springs 301 and connecting rods 4 are arranged inside the four cavities 3, and the springs 301 are used to support the connecting rod 4 and push it to extend and reset, and an alloy sheet 401 is arranged at the other end of the connecting rod 4, and the alloy sheet 401 can support the through groove 7 outside the drill bit 1, wherein the outer walls of two of the alloy sheets 401 are provided with threaded layers 5, and the threaded layers 5 have opposite textures to the surface of the drill bit 1, so that the alloy sheets 4 with the threaded layers 5 installed can be easily removed. When the drill bit 1 is inserted into the through groove 7, the threaded layer 5 extends out of the through groove 7 and abuts against the inner wall of the borehole. Then, when the drill bit 1 starts to rotate, the threaded layer 5 matches the hole wall to generate a thrust out of the borehole, thereby assisting the drill bit 1 to withdraw from the borehole, and when the drill bit 1 rotates, it will push away the surrounding gravel to reduce the impact of the gravel on the drill bit 1. The four alloy sheets 401 are provided with hole grooves 6 at both ends, and the hole grooves 6 are provided with arc blocks 601 inside. The arc blocks 601 can extend from the hole grooves 6 and be embedded in the locking grooves 701 through supporting springs to lock the alloy sheets 401. However, since the top of the arc block 601 is an arc structure, the alloy sheet 401 can be extended and retracted when rotating left and right, and locked when facing the force into the drill bit 1. The outer wall of the drill bit 1 is provided with two through grooves 7, and the inner walls of the two through grooves 7 are provided with locking grooves 701.

[0023] In this embodiment, all electrical components are controlled by conventional controllers.

[0024] For example, please refer to Figure 1-5The turntable 2 is located in the drill bit 1 and is rotatably connected to the inner wall of the drill bit 1 through a connecting shaft. The four cavities 3 are annularly distributed on the outer wall of the turntable 2. One end of the connecting rod 4 is located in the cavity 3 and is slidably connected to the inner wall of the cavity 3 through a slide rail. The other end of the connecting rod 4 extends outside the cavity 3 and is connected to the alloy sheet 401 through a bolt. The spring 301 is located in the cavity 3, and both ends are connected to the inner wall of the cavity 3 and the connecting rod 4 respectively through welding. Two of the alloy sheets 401 can be embedded in the through groove 7. The outer walls of the two alloy sheets 401 are welded to the threaded layer 5, and the texture of the threaded layer 5 is opposite to the texture of the outer wall of the drill bit 1. One end of the four alloy sheets 401 is an arc structure, and the other end is a right-angle structure. After the alloy sheet 401 is embedded in the through groove 7, it can only be rotated toward the arc end to disengage from the through groove 7. The arc block 601 is located in the hole groove 6 and is slidably connected to the inner wall of the hole groove 6 through a slide rail. The arc block 601 is an arc structure at one end away from the hole groove 6 and can extend to the lock groove 701 inside the through groove 7. When the drill bit 1 needs to be removed from the borehole, the PLC controller is first used to control the connecting shaft to drive the turntable 2 to rotate in the drill bit 1. At the same time, the connecting rod 4 and the arc structure at one end of the alloy sheet 401 drive the alloy sheet 401 to retract from the through groove 7 and rotate and switch in the drill bit 1. The alloy sheet 401 installed with the threaded layer 5 is rotated to the through groove 7. At the same time, the spring 301 in the cavity 3 pushes the alloy sheet 401 into the through groove 7. At the same time, the arc blocks 601 at both ends of the alloy sheet 401 extend from the hole groove 6 and extend into the locking groove 701 on the inner wall of the through groove 7 for locking. Then, the drill bit 1 is controlled to rotate through the texture of the threaded layer 5 so that the drill bit 1 generates a thrust out of the borehole when it rotates, thereby assisting the drill bit 1 to withdraw from the borehole.

[0025] The working process of the utility model is as follows: when the drill bit 1 needs to be taken out from the borehole, the connecting shaft is first controlled by the PLC controller to drive the turntable 2 to rotate in the drill bit 1, and at the same time, the alloy sheet 401 is driven to shrink from the through groove 7 through the arc structure of the connecting rod 4 and one end of the alloy sheet 401, and the alloy sheet 401 is rotated and switched in the drill bit 1, and the alloy sheet 401 installed with the threaded layer 5 is rotated to the through groove 7, and at the same time, the alloy sheet 401 is pushed and embedded into the through groove 7 through the spring 301 in the cavity 3, and at the same time, the arc blocks 601 at both ends of the alloy sheet 401 extend from the hole groove 6 and extend into the lock groove 701 of the inner wall of the through groove 7 for locking, and then the drill bit 1 is controlled to rotate through the texture of the threaded layer 5 so that the drill bit 1 generates a thrust out of the borehole when it rotates, thereby assisting the drill bit 1 to withdraw from the borehole. The utility model realizes the change of the texture of the drill bit surface abutting against the borehole, so that the drill bit generates a force opposite to the borehole when it continues to rotate, thereby rotating and taking out, facilitating the smooth withdrawal of the drill bit, and reducing the probability of the drill bit falling.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drill bit with an anti-stripping alloy sheet, comprising a drill bit (1), wherein an auxiliary component for cooperating with the drill bit (1) to be removed is arranged inside the drill bit (1), characterized in that: The auxiliary component comprises a turntable (2) arranged inside the drill bit (1), four cavities (3) are arranged outside the turntable (2), springs (301) and connecting rods (4) are arranged inside the four cavities (3), an alloy sheet (401) is arranged at the other end of the connecting rod (4), wherein the outer walls of two of the alloy sheets (401) are provided with threaded layers (5), holes (6) are arranged at the upper and lower ends of the four alloy sheets (401), arc blocks (601) are arranged inside the holes (6), and two through grooves (7) are arranged on the outer wall of the drill bit (1), and the inner walls of the two through grooves (7) are provided with locking grooves (701).

2. A drill bit with an anti-stripping alloy sheet according to claim 1, characterized in that: The turntable (2) is located inside the drill bit (1) and is rotatably connected to the inner wall of the drill bit (1) via a connecting shaft. The four cavities (3) are distributed in an annular manner on the outer wall of the turntable (2).

3. A drill bit with an anti-stripping alloy sheet according to claim 1, characterized in that: One end of the connecting rod (4) is located in the cavity (3) and is slidably connected to the inner wall of the cavity (3) via a slide rail; the other end of the connecting rod (4) extends outside the cavity (3) and is connected to the alloy sheet (401) via a bolt; the spring (301) is located in the cavity (3) and both ends are connected to the inner wall of the cavity (3) and the connecting rod (4) respectively via welding.

4. A drill bit with an anti-stripping alloy sheet according to claim 1, characterized in that: Two of the alloy sheets (401) can be embedded in the through groove (7), and the outer walls of the other two alloy sheets (401) are welded to the threaded layer (5), and the texture of the threaded layer (5) is opposite to the texture of the outer wall of the drill bit (1).

5. A drill bit with an anti-stripping alloy sheet according to claim 1, characterized in that: One end of the four alloy sheets (401) is an arc-shaped structure, and the other end is a right-angle structure. After the alloy sheet (401) is embedded in the through groove (7), it can only rotate toward the arc-shaped end to escape from the through groove (7).

6. A drill bit with an anti-stripping alloy sheet according to claim 1, characterized in that: The arc block (601) is located in the hole groove (6) and is slidably connected to the inner wall of the hole groove (6) through a slide rail. The end of the arc block (601) away from the hole groove (6) is an arc structure and can extend into the locking groove (701) inside the through groove (7).

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