Composite tooth distribution percussion bit

Abstract

The utility model discloses a composite tooth distribution percussion bit, which relates to the technical field of drill bits and comprises a percussion bit body, a drill tip head is arranged on the end face of the percussion bit body, a tooth distribution frame is fixedly connected to the side wall of the percussion bit body, and a plurality of tooth distribution pieces are fixedly connected to the side wall of the tooth distribution frame. The side wall of the percussion bit body is fixedly connected with a strength reinforcing frame, and the included angle between the strength reinforcing frame and the tooth distribution frame is 90 degrees. According to the technical scheme, the body made of the high-strength alloy steel is combined with the tooth distribution piece made of the hard alloy-tungsten carbide composite material, so that the overall high strength and impact resistance of the drill bit are guaranteed, the wear resistance of a cutting part is greatly improved, the service life of the drill bit is remarkably prolonged, meanwhile, the strength reinforcing frame is introduced, and the service life of the drill bit is prolonged. Right-angle supporting is formed by the tooth distributing frame and the tooth distributing frame, the structural stability of the drill bit is effectively enhanced, and especially during high-load drilling, bending deformation caused by lateral force can be remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a composite tooth impact drill bit. Background Art

[0002] Traditional impact drill bits often face problems such as slow drilling speed, rapid wear, and easy drill jamming when drilling hard rock, concrete and other high-strength materials. This is because conventional drill bits rely on a single material and structural design, which makes it difficult to simultaneously meet the requirements of high strength, high wear resistance and good drill cuttings removal. In particular, the drill tip of a single material is prone to passivation under continuous impact and high friction, and drill cuttings clogging greatly reduces drilling efficiency and drilling quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a composite tooth impact drill bit to solve the problems in the background technology.

[0004] In view of this, the utility model provides a composite tooth distribution impact drill bit, including an impact drill bit body, the end face of the impact drill bit body is provided with a drill tip head, the side wall of the impact drill bit body is fixedly connected to a tooth distribution frame, and the side wall of the tooth distribution frame is fixedly connected to a plurality of tooth distribution parts, the side wall of the impact drill bit body is fixedly connected to a strength reinforcement frame, and the angle between the strength reinforcement frame and the tooth distribution frame is ninety degrees.

[0005] Preferably, cutting edges are provided on both sides of the drill tip head.

[0006] Preferably, a neck annular groove is formed on the side wall of the impact drill bit body.

[0007] Preferably, a first drilling cuttings discharge outlet is formed on a side wall of the tooth arrangement frame, and a second drilling cuttings discharge outlet is formed on a side wall of the strength reinforcement frame.

[0008] Preferably, the first drill cuttings discharge port and the second drill cuttings discharge port are distributed at positions on the groove body of the spiral discharge groove of the impact drill bit body.

[0009] Preferably, the impact drill bit body is made of high-strength alloy steel material.

[0010] Preferably, the tooth-laying member is made of a composite material of cemented carbide and tungsten carbide.

[0011] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0012] 1. The utility model is a composite tooth impact drill bit, which combines a body made of high-strength alloy steel with a tooth piece made of cemented carbide-tungsten carbide composite material, which not only ensures the high strength and impact resistance of the drill bit as a whole, but also greatly improves the wear resistance of the cutting part, significantly prolongs the service life of the drill bit. At the same time, a strength reinforcement frame is introduced to form a right-angle support with the tooth frame, which effectively enhances the structural stability of the drill bit. Especially during high-load drilling, it can significantly reduce the bending deformation caused by lateral force, ensuring the accuracy and consistency of drilling.

[0013] 2. The utility model is a composite tooth distribution impact drill bit, which adopts a double cuttings discharge outlet setting: the first cuttings discharge outlet is located on the side wall of the tooth distribution frame, and the second cuttings discharge outlet is arranged on the side wall of the strength reinforcement frame, and then cooperates with the spiral discharge chute to ensure the efficient discharge of cuttings, reduce the drill jamming phenomenon during the drilling process, and improve the continuous operation capability.

[0014] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model from top view.

[0019] Explanation of the reference numerals: 1. impact drill bit body; 11. drill tip head; 12. neck annular groove; 2. tooth distribution frame; 21. first drill cuttings discharge outlet; 3. tooth distribution member; 4. strength reinforcement frame; 41. second drill cuttings discharge outlet. DETAILED DESCRIPTION

[0020] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0021] A composite tooth impact drill bit according to an embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0022] Example

[0023] For easier understanding, see Figures 1 to 3An embodiment of a composite tooth distribution impact drill bit provided by the utility model comprises an impact drill bit body 1, the end face of the impact drill bit body 1 is provided with a drill tip head 11, the side wall of the impact drill bit body 1 is fixedly connected to a tooth distribution frame 2, and the side wall of the tooth distribution frame 2 is fixedly connected to a plurality of tooth distribution parts 3, the side wall of the impact drill bit body 1 is fixedly connected to a strength reinforcement frame 4, and the angle between the strength reinforcement frame 4 and the tooth distribution frame 2 is ninety degrees.

[0024] The impact drill bit body 1 is made of high-strength alloy steel, and the tooth arrangement member 3 is made of a composite material of cemented carbide and tungsten carbide.

[0025] It should be noted that the impact drill body 1 is made of high-strength alloy steel material and is precision cast or forged to ensure the overall strength and impact resistance of the drill bit. Better cutting is achieved by setting the drill tip head 11. The tooth frame 2 is fixed to the side wall of the impact drill body 1 and is connected to the body by reliable means such as welding. The tooth pieces 3 are made of a composite material of cemented carbide and tungsten carbide. The tooth pieces 3 made of this material ensure extremely high wear resistance and cutting efficiency. The tooth pieces 3 are evenly distributed on the tooth frame 2, which increases the cutting area and debris removal ability of the drill bit.

[0026] In order to further improve the stability and deformation resistance of the drill bit, a strength reinforcement frame 4 is provided and fixed to the side wall of the body and forms a right-angle support with the tooth arrangement frame 2, thereby enhancing the rigidity of the overall structure.

[0027] Among them, material selection and processing: First, high-strength alloy steel material is selected to make the impact drill body 1, and it is formed by precision casting or forging process. The tooth arrangement part 3 is made of high-performance composite material of cemented carbide and tungsten carbide, and is formed by precision processing.

[0028] Assembly and fixation: The prefabricated tooth rack 2 is installed to the predetermined position of the impact drill body 1 by welding or mechanical fixation to ensure that the tooth pieces 3 are firm and evenly distributed. The strength reinforcement frame 4 is then installed and precisely adjusted to form a 90-degree angle with the tooth rack 2 to enhance the overall structural stability.

[0029] In an optional embodiment: cutting edges are provided on both sides of the drill tip head 11 .

[0030] It should be noted that sharp cutting edges are installed on both sides of the drill tip head, and the cutting edges are precisely arranged along both sides of the head to optimize cutting efficiency, reduce drilling resistance, and enhance its ability to penetrate rock or other hard materials.

[0031] In an optional embodiment: a neck annular groove 12 is formed on the side wall of the impact drill bit body 1 .

[0032] It should be noted that a neck annular groove 12 is provided on the side wall of the impact drill body. The structural setting of the neck annular groove 12 helps to reduce weight, increase heat dissipation area, and reserve installation space for specific accessories such as locking devices.

[0033] In an optional embodiment, the side wall of the tooth distribution frame 2 is provided with a first drill cuttings discharge port 21, and the side wall of the strength reinforcement frame 4 is provided with a second drill cuttings discharge port 41. The first drill cuttings discharge port 21 and the second drill cuttings discharge port 41 are distributed at the position of the spiral discharge port of the impact drill body 1.

[0034] It should be noted that a first drill cuttings discharge outlet 21 is provided on the side wall of the tooth distribution frame 2, and a second drill cuttings discharge outlet 41 is provided on the side wall of the strength reinforcement frame 4. The positions of the first drill cuttings discharge outlet 21 and the second drill cuttings discharge outlet 41 correspond to the positions of the spiral discharge trough of the impact drill bit body 1, which effectively promotes the rapid discharge of debris generated during the drilling process, reduces blockage, and keeps the drill hole clean.

[0035] Working principle: The drill tip 11 first contacts the surface of the workpiece, and the cutting edges on both sides quickly cut into the material with their sharp edges, reducing the resistance during initial drilling and achieving rapid penetration. The impact drill bit body 1 made of high-strength alloy steel can withstand the huge stress caused by high-speed rotation and impact, ensuring that the drill bit can penetrate steadily. As the drilling depth increases, the tooth pieces 3 begin to play a role. These tooth pieces made of cemented carbide and tungsten carbide composite materials are evenly distributed on the tooth frame 2, and the workpiece material is continuously cut and crushed by the shear force and impact force generated by high-speed rotation. Due to the extremely high wear resistance of the composite material, the tooth pieces can remain sharp for a long time, effectively improving the drilling efficiency and quality. A large amount of debris generated during the drilling process needs to be discharged in time to avoid blockage. The first cuttings discharge port 21 is located on the side wall of the tooth frame, directly collecting the debris generated by the cutting of the tooth pieces 3; the second cuttings discharge port 41 is located on the side wall of the strength reinforcement frame 4, ensuring that the cuttings can be quickly discharged along the spiral groove, maintaining a clear hole, reducing resistance, and extending the service life of the drill bit. The right-angle support structure formed by the strength reinforcement frame 4 and the tooth arrangement frame 2 significantly enhances the overall stability and bending resistance of the drill bit, especially under high-load drilling conditions, and can effectively resist deformation caused by lateral forces and maintain the accuracy of the drilling trajectory.

[0036] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A composite tooth impact drill bit, characterized in that: The invention comprises an impact drill body (1), the end surface of the impact drill body (1) is provided with a drill tip head (11), the side wall of the impact drill body (1) is fixedly connected to a tooth distribution frame (2), and the side wall of the tooth distribution frame (2) is fixedly connected to a plurality of tooth distribution members (3), and the side wall of the impact drill body (1) is fixedly connected to a strength reinforcement frame (4), and the included angle between the strength reinforcement frame (4) and the tooth distribution frame (2) is ninety degrees.

2. The composite tooth impact drill bit according to claim 1, characterized in that: Cutting edges are arranged on both sides of the drill tip head (11).

3. The composite tooth impact drill bit according to claim 1, characterized in that: The side wall of the impact drill bit body (1) is provided with a neck annular groove (12).

4. The composite tooth impact drill bit according to claim 1, characterized in that: The side wall of the tooth arrangement frame (2) is provided with a first drill cuttings discharge port (21), and the side wall of the strength reinforcement frame (4) is provided with a second drill cuttings discharge port (41).

5. The composite tooth arrangement impact drill bit according to claim 4, characterized in that: The distribution positions of the first drill cuttings discharge port (21) and the second drill cuttings discharge port (41) impact the groove body position of the spiral discharge groove of the drill bit body (1).

6. The composite tooth impact drill bit according to claim 1, characterized in that: The impact drill bit body (1) is made of high-strength alloy steel material.

7. The composite tooth impact drill bit according to claim 1, characterized in that: The tooth arrangement member (3) is made of a composite material of hard alloy and tungsten carbide.

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