Rapid rock breaking drill bit suitable for hard rock drilling

Abstract

The utility model discloses a quick rock breaking drill bit suitable for hard rock drilling, which comprises a drill rod, a boss is arranged on the outer surface of the drill rod, a conical drill bit is arranged below the drill rod, a group of skewed slots are arranged on the outer surface of the conical drill bit, a group of skewed teeth are arranged on the outer surface of the conical drill bit, and the boss is arranged on the outer surface of the drill rod. And a group of wear-resistant teeth are arranged on the bottom surface of the conical drill bit. According to the device, the conical drill bit and the rod-shaped drill bit are arranged in a matched mode, when the device is used, rock is drilled through the rod-shaped drill bit, then the crushing range of the rock is expanded through the conical drill bit, the drilling speed of a hard stratum with many rocks is effectively increased, the use efficiency is high, and abrasion-resistant teeth, oblique teeth and oblique grooves are matched with one another, so that the service life of the device is prolonged. The drilling efficiency can be further improved, the service life of the drill bit is prolonged, then the use performance of the drill bit is improved, the heat dissipation effect of the drill bit can be guaranteed through cooperation of the through opening and the through hole in the use process, and the use state of the drill bit is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a fast rock-breaking drill bit suitable for hard rock drilling. Background Art

[0002] The drill bit is one of the important tools for oil drilling. Whether the drill bit is adapted to the nature of the rock and its quality plays a very important role in the selection of drilling technology, especially in terms of drilling quality, drilling speed and drilling cost.

[0003] The commonly used drill bits are generally used in soft geology. For hard formations with more rocks, the drilling efficiency is low and the drill bits are easily worn, which is not conducive to use. Therefore, we propose a fast rock breaking drill bit suitable for hard rock drilling to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a fast rock breaking drill bit suitable for hard rock drilling, so as 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 fast rock-breaking drill bit suitable for hard rock drilling, comprising a drill rod, a boss is provided on the outer surface of the drill rod, a conical drill bit is provided below the drill rod, a group of inclined grooves are provided on the outer surface of the conical drill bit, a group of inclined teeth are provided on the outer surface of the conical drill bit, a group of wear-resistant teeth are provided on the bottom surface of the conical drill bit, a groove is provided on the bottom surface of the conical drill bit, a rod-shaped drill bit is provided inside the groove, a through opening is provided on the upper surface of the drill rod, a group of through holes are provided on the inner bottom wall of the through opening, and each of the through holes is connected to the groove.

[0007] In a further embodiment, a connecting ring is provided on the outer surface of the drill rod, and the connecting ring is located above the boss.

[0008] In a further embodiment, a group of limiting grooves are provided on the upper surface of the drill rod.

[0009] In a further embodiment, a group of first reinforcing ribs are commonly provided on the outer surface of the drill rod and the outer surface of the boss, and each of the first reinforcing ribs is located above the conical drill bit.

[0010] In a further embodiment, a group of second reinforcing ribs are disposed inside the groove.

[0011] In a further embodiment, a reinforcement seat is provided on the outer surface of each of the wear-resistant teeth.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is arranged by cooperating a conical drill bit with a rod-shaped drill bit. When in use, the rock is first drilled by the rod-shaped drill bit, and then the conical drill bit is used to expand the rock crushing range, effectively improving the drilling speed of hard formations with more rocks. The device has high utilization efficiency. Through the mutual cooperation of wear-resistant teeth, bevel teeth and bevel grooves, the drilling efficiency can be further improved and the service life of the drill bit can be increased, thereby improving the performance of the drill bit. During use, the cooperation of the through port and the through hole can ensure the heat dissipation effect of the drill bit and maintain its use state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the three-dimensional structure of a fast rock breaking drill bit suitable for hard rock drilling.

[0015] Figure 2 The present invention is a three-dimensional structural schematic diagram of a front cross-section of a fast rock breaking drill bit suitable for hard rock drilling.

[0016] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of a bottom view of a fast rock breaking drill bit suitable for hard rock drilling.

[0017] Figure 4 The figure is a three-dimensional structural schematic diagram of a top view of a fast rock breaking drill bit suitable for hard rock drilling.

[0018] In the figure: 1. drill rod; 2. connecting ring; 3. limiting groove; 4. boss; 5. first reinforcing rib; 6. conical drill bit; 7. inclined groove; 8. oblique teeth; 9. wear-resistant teeth; 10. reinforcement seat; 11. rod-shaped drill bit; 12. through opening; 13. groove; 14. through hole; 15. second reinforcing rib. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 In the utility model, a fast rock breaking drill bit suitable for hard rock drilling includes a drill rod 1, a boss 4 is arranged on the outer surface of the drill rod 1, a conical drill bit 6 is arranged below the drill rod 1, a group of inclined grooves 7 are opened on the outer surface of the conical drill bit 6, a group of inclined teeth 8 are arranged on the outer surface of the conical drill bit 6, a group of wear-resistant teeth 9 are arranged on the bottom surface of the conical drill bit 6, a groove 13 is opened on the bottom surface of the conical drill bit 6, a rod-shaped drill bit 11 is arranged inside the groove 13, a through opening 12 is opened on the upper surface of the drill rod 1, and a group of through holes 14 are opened on the inner bottom wall of the through opening 12, and each through hole 14 is connected to the groove 13.

[0023] A connecting ring 2 is provided on the outer surface of the drill rod 1, and the connecting ring 2 is located above the boss 4. The connecting ring 2 can be used to facilitate the installation and use of the drill bit. A group of limiting grooves 3 are opened on the upper surface of the drill rod 1, and the limiting grooves 3 play a limiting role on the drill bit, making its installation more stable. A group of first reinforcing ribs 5 are jointly provided on the outer surface of the drill rod 1 and the outer surface of the boss 4, and each first reinforcing rib 5 is located above the conical drill bit 6. The strength of the drill rod 1 and the boss 4 can be enhanced by using the first reinforcing ribs 5.

[0024] A group of second reinforcing ribs 15 are arranged inside the groove 13, and the rod-shaped drill bit 11 can be reinforced by the second reinforcing ribs 15. A reinforcing seat 10 is arranged on the outer surface of each wear-resistant tooth 9, and the reinforcing seat 10 can be used to reinforce the wear-resistant tooth 9 to increase its service life.

[0025] The working principle of the utility model is:

[0026] When in use, the drill bit can be connected to a driving device. After the device is started, the drill bit can be driven to rotate, and then the drill bit can be brought into contact with the rock. The rock can be drilled through the rod-shaped drill bit 11. As the drill bit continues to move forward, the wear-resistant teeth 9, the conical drill bit 6 and the bevel teeth 8 will contact the rock in turn to quickly crush the rock. The bevel groove 7 can be used to conveniently transport the crushed stone outward to avoid affecting the use.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fast rock breaking drill bit suitable for hard rock drilling, characterized by: The drill rod (1) comprises a drill pipe (1), wherein a boss (4) is arranged on the outer surface of the drill pipe (1), a conical drill bit (6) is arranged below the drill pipe (1), a group of inclined grooves (7) are arranged on the outer surface of the conical drill bit (6), a group of inclined teeth (8) are arranged on the outer surface of the conical drill bit (6), a group of wear-resistant teeth (9) are arranged on the bottom surface of the conical drill bit (6), a groove (13) is arranged on the bottom surface of the conical drill bit (6), a rod-shaped drill bit (11) is arranged inside the groove (13), a through opening (12) is arranged on the upper surface of the drill pipe (1), a group of through holes (14) are arranged on the inner bottom wall of the through opening (12), and each of the through holes (14) is connected to the groove (13).

2. A fast rock breaking drill bit suitable for hard rock drilling according to claim 1, characterized in that: The outer surface of the drill rod (1) is provided with a connecting ring (2), and the connecting ring (2) is located above the boss (4).

3. A fast rock breaking drill bit suitable for hard rock drilling according to claim 1, characterized in that: A group of limiting grooves (3) are provided on the upper surface of the drill rod (1).

4. A fast rock breaking drill bit suitable for hard rock drilling according to claim 1, characterized in that: The outer surface of the drill rod (1) and the outer surface of the boss (4) are jointly provided with a group of first reinforcing ribs (5), and each of the first reinforcing ribs (5) is located above the conical drill bit (6).

5. A fast rock breaking drill bit suitable for hard rock drilling according to claim 1, characterized in that: A group of second reinforcing ribs (15) is arranged inside the groove (13).

6. A fast rock breaking drill bit suitable for hard rock drilling according to claim 1, characterized in that: The outer surface of each wear-resistant tooth (9) is provided with a reinforcement seat (10).

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