Wear-resistant diamond compact drill bit

Abstract

The utility model discloses a wear-resistant diamond compact drill bit, which belongs to the technical field of drill bits and comprises a drill bit body, a drill tooth mechanism is arranged above the drill bit body, and a positioning mechanism is arranged between the drill tooth mechanism and the drill bit body. The drill tooth mechanism is combined with the three sets of composite drill bits of different models, the diamond content in each composite drill bit is different, different polishing and drilling requirements can be met, only proper composite drill bits need to be replaced when needed, the whole drill bit body does not need to be unloaded from a machine, and the machining efficiency is improved. The convenience and the practicability of the diamond compact drill bit are improved to a great extent; the positioning mechanism is used for assisting the drill tooth mechanism in fixing operation, the positioning mechanism is of a multi-layer fastening structure and is divided into a limiting buckle structure, a plug pin positioning structure and a fastening limiting structure, the installation stability of the drill tooth mechanism can be effectively improved, and the stability and reliability of the whole drill bit in the using process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of drill bit technology, specifically a wear-resistant diamond composite drill bit. Background Technology

[0002] Diamond composite drill bits are high-performance drilling tools made by combining diamond particles with other wear-resistant materials to achieve superior wear resistance and cutting efficiency. Designed to withstand extreme drilling conditions, especially in high-temperature, high-pressure, and high-friction environments, the hardness and strength of diamond make it one of the most effective cutting materials. The unique structure of diamond composites not only effectively reduces wear during drilling but also significantly extends the life of the drill bit, reducing the frequency of maintenance and replacement. These drill bits are widely used in oil, gas, mining, construction, and infrastructure industries, providing efficient drilling solutions under various geological conditions, improving operational efficiency, and saving time and costs. Through its advanced materials technology and engineering design, diamond composite drill bits have become an indispensable tool in the modern drilling industry.

[0003] Patent application CN202322208959.1 discloses a diamond composite drill bit, which "includes a drill bit connecting seat assembly, the drill bit connecting seat assembly including a drill bit connecting rod and a cutting edge mounting seat, the drill bit connecting seat assembly having an auxiliary hole in the middle, a locking ring mounting groove above the auxiliary hole, and a cutting edge mounting groove around the locking ring mounting groove. Through the cooperative arrangement of the drill bit connecting seat assembly and the cutting edge assembly, this diamond composite drill bit possesses the ability for the diamond composite cutting edge to more..." The replacement reduces the waste of drill bits and saves costs. Through the coordinated arrangement of the drill bit connecting seat assembly, the cutting edge locking ring, the cutting edge assembly and the external hexagonal bolt, the diamond composite drill bit has the effect of easy disassembly and assembly of the cutting edge. Based on the above patent search and combined with the existing diamond composite drill bit technology, it was found that when using drill bits, it is necessary to replace different types of drill bits according to the actual situation. Frequent replacement of drill bits is very time-consuming and laborious. In particular, the installation methods of drill bits are different, and a lot of time is required to prepare the corresponding installation model.

[0004] Based on this, the present invention designs a wear-resistant diamond composite drill bit to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a wear-resistant diamond composite drill bit to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant diamond composite drill bit, comprising a drill bit body, an mounting sleeve installed at the lower end of the drill bit body, a drill tooth mechanism disposed above the drill bit body, a positioning mechanism disposed between the drill tooth mechanism and the drill bit body, the drill tooth mechanism comprising a mounting block, a first mounting seat and a first composite drill bit, the mounting block disposed above the drill bit body, the first mounting seat fixedly mounted at the upper end of the mounting block, the first composite drill bit fixedly mounted at the upper end of the first mounting seat, the positioning mechanism comprising a limiting sleeve and a limiting plate, the limiting sleeve disposed below the mounting block, the limiting sleeve fixedly mounted at the upper end of the drill bit body, the limiting sleeve having a limiting plate disposed inside, and the limiting plate fixedly mounted on the outer wall of the mounting block.

[0007] Optionally, the drilling mechanism further includes a second mounting base and a second composite drill bit. The second mounting base is fixedly mounted on the right end of the mounting block, and the second composite drill bit is fixedly mounted on the outer wall of the second mounting base.

[0008] Optionally, a third mounting base is fixedly installed on the left end of the mounting block, and a third composite drill bit is fixedly installed on the outer wall of the third mounting base.

[0009] Optionally, the four sets of mounting blocks, the first mounting base, the first composite drill bit, the second mounting base, the second composite drill bit, the third mounting base, and the third composite drill bit are mounted above the drill bit body with the midpoint of the drill bit body as the axis.

[0010] Optionally, the positioning mechanism further includes a limiting baffle and a limiting pin. The limiting baffle is fixedly installed on the inner wall of the limiting sleeve, and the limiting pin is inserted into the limiting plate, with the limiting pin penetrating through the limiting sleeve and the limiting plate.

[0011] Optionally, a limiting pad is fixedly installed at the upper end of the limiting pin, and a fastening screw is inserted into the lower end of the limiting pin, the fastening screw being inserted inward into the interior of the drill bit body.

[0012] Optionally, a positioning collar is fixedly installed on the inner wall of the mounting block, and three limiting plates are installed on the outer wall of the mounting block with the midpoint of the mounting block as the axis.

[0013] Optionally, the four sets of limiting sleeves and limiting baffles are mounted on the upper surface of the drill bit body with the drill bit body as the axis.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, a drilling mechanism is provided, which is combined with three sets of composite drill bits of different models. Each composite drill bit has a different diamond content, which can meet different grinding and drilling needs. Only the appropriate composite drill bit needs to be changed when needed, without having to unload the entire drill bit body from the machine. This greatly improves the convenience and practicality of this diamond composite drill bit, and also improves the durability and reliability of the drill bit to a certain extent.

[0016] 2. In this utility model, a positioning mechanism is provided, which complements the drilling tooth mechanism and is used to assist the drilling tooth mechanism in fixing operations. The positioning mechanism adopts a multi-layer fastening structure, in which the limiting sleeve and the limiting plate are limiting buckle structures, the limiting pin is a pin positioning structure, and the fastening screw is a fastening limiting structure, which can effectively improve the installation stability of the drilling tooth mechanism and ensure the overall stability and reliability of the drill bit during use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model from a frontal view.

[0019] Figure 3 This is a three-dimensional, bottom-view structural diagram of the present invention;

[0020] Figure 4 This is a top view of the structure of this utility model;

[0021] Figure 5 This is a three-dimensional top view of the structure of this utility model. Figure 1 ;

[0022] Figure 6 This is a three-dimensional top view of the structure of this utility model. Figure 2 ;

[0023] Figure 7 This is a three-dimensional sectional view of the present invention.

[0024] In the diagram: 1. Drill bit body; 2. Mounting sleeve; 3. Drill tooth mechanism; 301. Mounting block; 302. First mounting seat; 303. First composite drill bit; 304. Second mounting seat; 305. Second composite drill bit; 306. Third mounting seat; 307. Third composite drill bit; 4. Positioning mechanism; 401. Limiting sleeve; 402. Limiting plate; 403. Limiting stop; 404. Limiting pin; 405. Limiting pad; 406. Fastening screw; 407. Positioning collar. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please see Figures 1-7In this embodiment of the present invention, a wear-resistant diamond composite drill bit includes a drill body 1, a mounting sleeve 2 installed at the lower end of the drill body 1, a drill tooth mechanism 3 disposed above the drill body 1, and a positioning mechanism 4 disposed between the drill tooth mechanism 3 and the drill body 1. The drill tooth mechanism 3 includes a mounting block 301, a first mounting seat 302, and a first composite drill bit 303. The mounting block 301 is disposed above the drill body 1, the first mounting seat 302 is fixedly mounted at the upper end of the mounting block 301, and the first composite drill bit 303 is fixedly mounted at the upper end of the first mounting seat 302. The drill tooth mechanism 3 also includes a second mounting seat 3. 04 and the second composite drill bit 305, the right end of the mounting block 301 is fixedly mounted with a second mounting seat 304, the outer wall of the second mounting seat 304 is fixedly mounted with a second composite drill bit 305, the left end of the mounting block 301 is fixedly mounted with a third mounting seat 306, the outer wall of the third mounting seat 306 is fixedly mounted with a third composite drill bit 307, the four sets of mounting blocks 301, first mounting seat 302, first composite drill bit 303, second mounting seat 304, second composite drill bit 305, third mounting seat 306 and third composite drill bit 307 are mounted above the drill body 1 with the midpoint of the drill body 1 as the axis;

[0029] See Figure 1 , Figure 2 , Figure 5 and Figure 6 Initially, when activated, the drill bit body 1 is installed on the drilling instrument, and the rotation of the drill bit body 1 allows the composite drill to slot the hole and break up structures such as rocks and soil. During the breaking process, the diamonds inside the composite drill bit continuously contact the broken structure, achieving a highly efficient slotting effect. The first composite drill bit 303, the second composite drill bit 305, and the third composite drill bit 307 contain different numbers of diamonds, and different composite drill bits can be used according to different needs. Only the individual composite drill bit needs to be replaced, which is convenient and different from the traditional replacement operation that requires replacing the entire drill bit body 1. It is more time-saving and labor-saving, and effectively improves the overall work efficiency.

[0030] Among them, the drilling mechanism 3 combines three sets of composite drill bits of different models. Each composite drill bit has a different diamond content, which can meet different grinding and drilling needs. Only the appropriate composite drill bit needs to be changed when needed. There is no need to unload the entire drill bit body 1 from the machine, which greatly improves the convenience and practicality of this diamond composite drill bit, and also improves the durability and reliability of this drill bit to a certain extent.

[0031] The positioning mechanism 4 includes a limiting sleeve 401 and a limiting plate 402. The limiting sleeve 401 is located below the mounting block 301 and is fixedly installed on the upper end of the drill bit body 1. The limiting plate 402 is located inside the limiting sleeve 401 and is fixedly installed on the outer wall of the mounting block 301. The positioning mechanism 4 also includes a limiting baffle 403 and a limiting pin 404. The limiting baffle 403 is fixedly installed on the inner wall of the limiting sleeve 401, and the limiting pin 404 is inserted into the limiting plate 402. 404 passes through the limiting sleeve 401 and the limiting plate 402. The upper end of the limiting pin 404 is fixedly installed with a limiting pad 405. The lower end of the limiting pin 404 is inserted with a fastening screw 406. The fastening screw 406 is inserted into the interior of the drill body 1. A positioning collar 407 is fixedly installed on the inner wall of the mounting block 301. Three limiting plates 402 are installed on the outer wall of the mounting block 301 with the midpoint of the mounting block 301 as the axis. Four sets of limiting sleeves 401 and limiting baffles 403 are installed on the upper surface of the drill body 1 with the drill body 1 as the axis.

[0032] See Figure 1 , Figure 2 , Figure 6 and Figure 7 When replacing the composite drill bit, simply remove the fastening screw 406 and the limiting pin 404, and then remove the limiting plate 402 from the limiting sleeve 401. This allows you to remove the individual mounting block 301 and the parts on the outer wall of the mounting block 301. Rotate the mounting block 301 so that the composite drill bit to be used is facing upwards. Then insert the limiting plate 402 into the limiting sleeve 401 and insert the limiting pin 404 into the limiting sleeve 401 and the limiting plate 402 to achieve pin positioning. Next, tighten the fastening screw 406 to connect the limiting pin 404 to the drill bit body 1, thus achieving a complete fastening effect. In addition, positioning collars 407 are installed on the inner walls of the four sets of mounting blocks 301. The positioning collars 407 can be connected with steel ropes to further increase the installation stability of the mounting blocks 301.

[0033] The positioning mechanism 4 complements the drilling mechanism 3 and is used to assist the drilling mechanism 3 in fixing operations. The positioning mechanism 4 adopts a multi-layer fastening structure, in which the limiting sleeve 401 and the limiting plate 402 are limiting buckle structures, the limiting pin 404 is a pin positioning structure, and the fastening screw 406 is a fastening limiting structure. This can effectively improve the installation stability of the drilling mechanism 3 and ensure the overall stability and reliability of the drill bit during use.

[0034] The working principle of this utility model is as follows: When the drill bit body 1 is installed on the drilling instrument and begins to work, the mounting sleeve 2 at its lower end is tightly engaged with the drill bit body 1 to ensure the stable rotation of the drill bit body 1. The drill tooth mechanism 3 located above the drill bit body 1 includes multiple mounting blocks 301, as well as a first mounting seat 302, a second mounting seat 304, and a third mounting seat 306 that cooperate with them. Each mounting seat is respectively fixed with a first composite drill bit 303, a second composite drill bit 305, and a third composite drill bit 307. These composite drill bits contain different numbers of diamonds and can be quickly replaced according to different drilling and grinding needs. When using the composite drill bit, the operator only needs to remove the fastening screw 406 and the limiting pin 404, and then remove the limiting plate 402 from the limiting sleeve 401. This allows for easy removal of the individual mounting block 301 and its outer wall parts. By rotating the mounting block 301, the operator can choose to position the desired composite drill bit upwards. Then, the limiting plate 402 is reinserted into the limiting sleeve 401, and the limiting pin 404 is inserted to achieve pin positioning. Finally, the fastening screw 406 is tightened to secure the limiting pin 404 to the drill bit body 1, thereby ensuring the complete fastening and stability of the drill tooth mechanism 3; the positioning mechanism 4 is designed... The design complements the drilling mechanism 3, employing a multi-layered fastening structure. This includes a limiting snap-fit ​​structure with a limiting sleeve 401 and a limiting plate 402, a pin positioning structure with a limiting pin 404, and a fastening and limiting structure with a fastening screw 406. This combination effectively improves the installation stability of the drilling mechanism 3, ensuring the overall stability and reliability of the drill bit during operation. During drilling, the rotation of the drill body 1 causes the diamonds within the composite drill bit to continuously contact the rock, soil, and other structures, achieving efficient grooving and breaking effects. Due to the varying diamond content within different composite drill bits, users can... The ability to quickly change to the appropriate composite drill bit according to specific operational needs without unloading the entire drill bit body 1 from the machine greatly improves operational efficiency and reduces labor intensity. In addition, to further improve the installation stability of the mounting block 301, positioning collars 407 are installed on the inner walls of all four sets of mounting blocks 301. These collars can be connected with steel ropes to further enhance the fixing effect of the mounting block 301. Overall, this damage-resistant diamond composite drill bit, through its unique design and structure, not only improves the durability and reliability of the drill bit, but also greatly enhances the flexibility and convenience of the drill bit in practical applications.

[0035] 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 wear-resistant diamond composite drill bit, comprising a drill bit body (1), wherein an mounting sleeve (2) is installed at the lower end of the drill bit body (1), characterized in that: A drill tooth mechanism (3) is provided above the drill bit body (1), and a positioning mechanism (4) is provided between the drill tooth mechanism (3) and the drill bit body (1). The drill tooth mechanism (3) includes a mounting block (301), a first mounting seat (302), and a first composite drill bit (303). The mounting block (301) is provided above the drill bit body (1), and the first mounting seat (302) is fixedly mounted on the upper end of the mounting block (301). The upper end of the mounting block (301) is fixedly installed with a first composite drill bit (303). The positioning mechanism (4) includes a limiting sleeve (401) and a limiting plate (402). The limiting sleeve (401) is provided below the mounting block (301). The limiting sleeve (401) is fixedly installed at the upper end of the drill bit body (1). The limiting sleeve (401) is provided inside the limiting plate (402). The limiting plate (402) is fixedly installed on the outer wall of the mounting block (301).

2. The wear-resistant diamond composite drill bit according to claim 1, characterized in that: The drilling mechanism (3) further includes a second mounting base (304) and a second composite drill bit (305). The second mounting base (304) is fixedly mounted on the right end of the mounting block (301), and the second composite drill bit (305) is fixedly mounted on the outer wall of the second mounting base (304).

3. The wear-resistant diamond composite drill bit according to claim 2, characterized in that: A third mounting base (306) is fixedly installed on the left end of the mounting block (301), and a third composite drill bit (307) is fixedly installed on the outer wall of the third mounting base (306).

4. The wear-resistant diamond composite drill bit according to claim 3, characterized in that: The four sets of mounting blocks (301), first mounting base (302), first composite drill bit (303), second mounting base (304), second composite drill bit (305), third mounting base (306) and third composite drill bit (307) are mounted above the drill body (1) with the midpoint of the drill body (1) as the axis.

5. The wear-resistant diamond composite drill bit according to claim 1, characterized in that: The positioning mechanism (4) further includes a limiting baffle (403) and a limiting pin (404). The limiting baffle (403) is fixedly installed on the inner wall of the limiting sleeve (401). The limiting pin (404) is inserted into the limiting plate (402). The limiting pin (404) passes through the limiting sleeve (401) and the limiting plate (402).

6. The wear-resistant diamond composite drill bit according to claim 5, characterized in that: The upper end of the limiting pin (404) is fixedly installed with a limiting pad (405), and the lower end of the limiting pin (404) is inserted with a fastening screw (406), which is inserted into the interior of the drill bit body (1).

7. The wear-resistant diamond composite drill bit according to claim 1, characterized in that: A positioning collar (407) is fixedly installed on the inner wall of the mounting block (301), and three limiting plates (402) are installed on the outer wall of the mounting block (301) with the midpoint of the mounting block (301) as the axis.

8. The wear-resistant diamond composite drill bit according to claim 1, characterized in that: The four sets of limiting sleeves (401) and limiting baffles (403) are mounted on the upper surface of the drill bit body (1) with the drill bit body (1) as the axis.

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