Multi-purpose diamond compact drill bit for complex geology

Abstract

The utility model discloses a multi-purpose diamond compact drill bit for complex geology, which comprises a drill bit body, the outer side of the drill bit body is fixedly sleeved with a fixing ring, the outer side of the drill bit body is slidably sleeved with a connecting ring, and the connecting ring is in contact with the fixing ring. Through the design of the first crushing head and the second crushing head, the first crushing head and the second crushing head can be driven to rotate in the rotating process of the drill bit body, the first crushing head and the second crushing head can conduct auxiliary scattering on soil on the periphery of a drill hole, the advancing resistance of the drill bit body in the follow-up drilling process can be reduced, abrasion to the drill bit can be reduced, and the service life of the drill bit is prolonged. And the second crushing head makes contact with soil firstly, abrasion is large, the second crushing head is fixed through insertion connection of a protruding block and a groove, the protruding block and the groove can be kept in the insertion connection state under the influence of centrifugal force during high-speed rotation, stability is improved, disassembly is convenient, and replacement and use are convenient.

Description

Technical Field

[0001] This utility model relates to the field of diamond composite drill bit technology, specifically a multi-purpose diamond composite drill bit for complex geological conditions. Background Technology

[0002] Diamond composite drill bits are drilling tools, typically used for drilling into hard materials such as concrete, brick, ceramic tiles, and rock. These drill bits combine diamond with other alloy materials, resulting in high hardness and wear resistance, making them suitable for efficient drilling operations in hard materials.

[0003] Utility model patent CN216517829U discloses a multi-purpose diamond composite sheet and drill bit for complex geological applications. It includes at least a cemented carbide matrix and a polycrystalline diamond layer fixed thereto. The top surface of the polycrystalline diamond layer has a wavy surface and a circular outer contour. The cutting structure is formed by a set of arc-shaped surfaces and a set of grooves spaced around the center of the top surface. Each arc-shaped surface has a fan-shaped outer contour with an upward convex curvature. The outer edges of the arc-shaped surfaces form upward convex arc-shaped cutting edges. The sides of each pair of arc-shaped surfaces are connected by the grooves, the width of which gradually increases outward from the center of the top surface. This utility model uses multiple arc-shaped cutting edges for continuous cutting, and the grooves facilitate timely chip removal. This improves cutting efficiency and saves on operating costs; the arc-shaped surfaces increase the contact area and improve cooling efficiency.

[0004] In the aforementioned prior art, during drilling, the presence of a significant amount of soil at the drilling location creates resistance to the drill bit's advance, increasing wear and tear. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a multi-purpose diamond composite drill bit for complex geological conditions, which solves the problem that soil at the drilling site will obstruct the movement of the drill bit and increase its wear.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-purpose diamond composite drill bit for complex geological conditions, comprising a drill bit body, a fixing ring fixedly sleeved on the outer side of the drill bit body, a connecting ring slidably sleeved on the outer side of the drill bit body, the connecting ring contacting the fixing ring, a plurality of annularly distributed connecting posts fixedly connected to the lower end of the connecting ring, the connecting posts slidably connected to the fixing ring, a plurality of uniformly distributed first-type breakers fixedly connected to the circumferential surface of the connecting ring, a plurality of uniformly distributed second-type breakers slidably sleeved inside the connecting ring, a fixing rod fixedly connected inside the second-type breaker, a first spring provided on the outer side of the fixing rod, a protrusion slidably sleeved on the outer side of the fixing rod, the protrusion slidably connected to the second-type breaker, the protrusion slidably connected to the connecting ring, and a connecting mechanism provided on the connecting ring.

[0007] Preferably, one end of the first spring is fixedly connected to the second crushing head, and the other end of the first spring is fixedly connected to the protrusion. By designing the first spring, the force of the first spring can be applied to the protrusion.

[0008] Preferably, the connecting ring has a groove inside, and a protrusion is slidably connected inside the groove. By designing the groove, the protrusion can slide inside the groove.

[0009] Preferably, a connecting block is fixedly connected to the upper end of the protrusion, and the connecting block is slidably connected to the second crushing head. By designing the connecting block, the movement of the protrusion can be guided.

[0010] Preferably, the connecting mechanism includes a guide rod, which is fixedly connected inside the fixing ring. A second spring is provided on the outer side of the guide rod. A push block is slidably sleeved on the outer side of the guide rod, and the push block is slidably connected to the fixing ring. A magnetic block is fixedly connected to the outer side of the push block. A magnet is fixedly connected inside the fixing ring. An insert block is fixedly connected to the upper end of the push block, and the insert block is slidably connected to the fixing ring and the connecting post. This connecting mechanism facilitates the disassembly of the connecting ring.

[0011] Preferably, one end of the second spring is fixedly connected to the fixed ring, and the other end of the second spring is fixedly connected to the push block. By designing the second spring, the force of the second spring can be applied to the push block.

[0012] Preferably, the connecting post has a slot inside, and a plug is slidably connected inside the slot. By designing the slot, the plug can slide inside the slot.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the design of the first and second breaker heads, can drive the first and second breaker heads to rotate during the rotation of the drill bit body. The first and second breaker heads can assist in breaking up the soil around the borehole, which can reduce the forward resistance of the drill bit body during subsequent drilling and reduce the wear on the drill bit. Since the second breaker head is in contact with the soil first, its wear is greater. However, the second breaker head is fixed by the insertion of the protrusion and the groove. Under the influence of centrifugal force during high-speed rotation, the protrusion and the groove can be kept in the insertion state, which can improve stability. Moreover, it is easy to disassemble and replace.

[0015] 2. This utility model limits the horizontal direction of the connecting ring by designing the insertion of the connecting column and the fixing ring. It limits the vertical direction of the connecting column by inserting the plug into the slot inside the connecting column. Thus, the connecting ring and the fixing ring can be connected and fixed. When the push block is pushed, the plug and the connecting column can be separated, which is convenient for disassembling the connecting ring. It can be used as needed. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0017] Figure 2 For this utility model Figure 1 A partial three-dimensional sectional view of the structure;

[0018] Figure 3 For this utility model Figure 1 A front sectional view of the partial structure of the connecting ring;

[0019] Figure 4 For this utility model Figure 2 Enlarged view of point A.

[0020] In the diagram: 1. Drill bit body; 2. Fixing ring; 3. Connecting ring; 4. Breaker head one; 5. Breaker head two; 6. Fixing rod; 7. First spring; 8. Protrusion; 9. Connecting mechanism; 10. Groove; 11. Connecting block; 12. Connecting column; 91. Guide rod; 92. Second spring; 93. Push block; 94. Magnetic block; 95. Magnet; 96. Insertion block; 97. Slot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1, Figure 3 A multi-purpose diamond composite drill bit for complex geological applications includes a drill bit body 1, a fixing ring 2 fixedly sleeved on the outer side of the drill bit body 1, a connecting ring 3 slidably sleeved on the outer side of the drill bit body 1, the connecting ring 3 contacting the fixing ring 2, a plurality of annularly distributed connecting posts 12 fixedly connected to the lower end of the connecting ring 3, the connecting posts 12 slidably connected to the fixing ring 2, a plurality of uniformly distributed breakers 4 fixedly connected to the circumferential surface of the connecting ring 3, a plurality of uniformly distributed breakers 5 slidably sleeved inside the connecting ring 3, and a fixing rod 6 fixedly connected inside the breakers 5.

[0023] Please see Figure 1 , Figure 3 A first spring 7 is provided on the outer side of the fixing rod 6. One end of the first spring 7 is fixedly connected to the second crushing head 5, and the other end of the first spring 7 is fixedly connected to the protrusion 8. By designing the first spring 7, the force of the first spring 7 can be applied to the protrusion 8. The protrusion 8 is slidably sleeved on the outer side of the fixing rod 6. The protrusion 8 is slidably connected to the second crushing head 5 and to the connecting ring 3. A groove 10 is provided inside the connecting ring 3. The protrusion 8 is slidably connected inside the groove 10. By designing the groove 10, the protrusion 8 can slide inside the groove 10. A connecting block 11 is fixedly connected to the upper end of the protrusion 8. The connecting block 11 is slidably connected to the second crushing head 5. By designing the connecting block 11, the movement of the protrusion 8 can be guided. A connecting mechanism 9 is provided on the connecting ring 3.

[0024] Please see Figure 1 , Figure 2 , Figure 4 The connecting mechanism 9 includes a guide rod 91, which is fixedly connected inside the fixing ring 2. A second spring 92 is provided on the outside of the guide rod 91. One end of the second spring 92 is fixedly connected to the fixing ring 2, and the other end of the second spring 92 is fixedly connected to the push block 93. By designing the second spring 92, the force of the second spring 92 can act on the push block 93. The push block 93 is slidably sleeved on the outside of the guide rod 91. The push block 93 is slidably connected to the fixing ring 2. A magnetic block 94 is fixedly connected on the outside of the push block 93. A magnet 95 is fixedly connected inside the fixing ring 2. An insert block 96 is fixedly connected to the upper end of the push block 93. The insert block 96 is slidably connected to the fixing ring 2 and to the connecting post 12. A slot 97 is provided inside the connecting post 12. The insert block 96 is slidably connected inside the slot 97. By designing the slot 97, the insert block 96 can slide inside the slot 97. By designing the connecting mechanism 9, it is convenient to disassemble the connecting ring 3.

[0025] The specific implementation process of this utility model is as follows: In use, through the action of the first breaker head 4 and the second breaker head 5, the first breaker head 4 and the second breaker head 5 can be driven to rotate during the rotation of the drill bit body 1. The first breaker head 4 and the second breaker head 5 can help to disperse the soil around the drill hole, which can reduce the forward resistance of the drill bit body 1 during subsequent drilling and reduce the wear on the drill bit. Since the second breaker head 5 is in contact with the soil first, its wear is greater. When it is necessary to disassemble the second breaker head 5, the second breaker head 5 is pulled outward directly. The second breaker head 5 drives the protrusion 8 to move. The protrusion 8 will slide along the arc surface of the groove 10. The protrusion 8 will be squeezed and drive the connecting block 11 to move. At the same time, the protrusion 8 will slide along the fixed rod 6 and squeeze the first spring 7, which can separate the protrusion 8 from the groove 10. Then the second breaker head 5 can be pulled out for easy replacement. Although the protrusion 8 is pushed into the groove 10 by the elastic force of the first spring 7, the centrifugal force during high-speed rotation can keep the protrusion 8 and the groove 10 in an inserted state, which improves stability.

[0026] When it is necessary to disassemble the connecting ring 3, push the push block 93 horizontally. The push block 93 will slide along the guide rod 91 and squeeze the second spring 92. At the same time, the push block 93 will drive the insertion block 96 to move horizontally. The push block 93 will drive the magnetic block 94 to move and be attracted to the magnet 95. At this time, the insertion block 96 can be separated from the connecting post 12. Then pull the connecting ring 3 upward. The connecting ring 3 can drive the connecting post 12 to pull it out from the inside of the fixing ring 2. Then the connecting ring 3 can be disassembled and used as needed.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose diamond composite drill bit for complex geological applications, comprising a drill bit body (1), characterized in that: A fixing ring (2) is fixedly sleeved on the outer side of the drill bit body (1), and a connecting ring (3) is slidably sleeved on the outer side of the drill bit body (1). The connecting ring (3) is in contact with the fixing ring (2). A plurality of connecting posts (12) arranged in a ring are fixedly connected to the lower end of the connecting ring (3). The connecting posts (12) are slidably connected to the fixing ring (2). A plurality of uniformly distributed first-stage crushing heads (4) are fixedly connected to the circumferential surface of the connecting ring (3). A plurality of uniformly distributed second-stage crushing heads (5) are slidably sleeved inside the connecting ring (3). A fixing rod (6) is fixedly connected inside the second-stage crushing head (5). A first spring (7) is provided on the outer side of the fixing rod (6). A protrusion (8) is slidably sleeved on the outer side of the fixing rod (6). The protrusion (8) is slidably connected to the second-stage crushing head (5). The protrusion (8) is slidably connected to the connecting ring (3). A connecting mechanism (9) is provided on the connecting ring (3).

2. The multi-purpose diamond composite drill bit for complex geological conditions according to claim 1, characterized in that: One end of the first spring (7) is fixedly connected to the second crushing head (5), and the other end of the first spring (7) is fixedly connected to the protrusion (8).

3. The multi-purpose diamond composite drill bit for complex geological conditions according to claim 1, characterized in that: The connecting ring (3) has a groove (10) inside, and a protrusion (8) is slidably connected inside the groove (10).

4. The multi-purpose diamond composite drill bit for complex geological conditions according to claim 1, characterized in that: The upper end of the protrusion (8) is fixedly connected to a connecting block (11), and the connecting block (11) is slidably connected to the second crushing head (5).

5. A multi-purpose diamond composite drill bit for complex geological conditions according to claim 1, characterized in that: The connecting mechanism (9) includes a guide rod (91), the guide rod (91) is fixedly connected inside the fixing ring (2), a second spring (92) is provided on the outside of the guide rod (91), a push block (93) is slidably sleeved on the outside of the guide rod (91), the push block (93) is slidably connected to the fixing ring (2), a magnetic block (94) is fixedly connected to the outside of the push block (93), a magnet (95) is fixedly connected inside the fixing ring (2), an insert block (96) is fixedly connected to the upper end of the push block (93), the insert block (96) is slidably connected to the fixing ring (2), and the insert block (96) is slidably connected to the connecting post (12).

6. A multi-purpose diamond composite drill bit for complex geological conditions according to claim 5, characterized in that: One end of the second spring (92) is fixedly connected to the fixed ring (2), and the other end of the second spring (92) is fixedly connected to the push block (93).

7. The multi-purpose diamond composite drill bit for complex geological conditions according to claim 1, characterized in that: The connecting post (12) has a slot (97) inside, and a plug (96) is slidably connected inside the slot (97).

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