Diamond drill bit with double rows of teeth

Abstract

The utility model relates to a diamond drill bit with double rows of teeth, which belongs to the technical field of drill bits and comprises a drill bit mounting seat, a plurality of groups of cutting components are mounted outside the drill bit mounting seat, and each cutting component comprises two mounting plates and a slider mounted on one side of the two mounting plates. The mounting plates are of an L-shaped structure and are attached to the side edge and the top of the drill bit mounting base, sliding grooves matched with the two sliding blocks for use are formed in the outer portion of the drill bit mounting base, the sliding grooves are of a trapezoidal structure, and a limiting block which is the same as the sliding grooves in shape is formed between the two sliding blocks; when the drill bit is locally damaged in the using process, the whole drill bit does not need to be abandoned, only damaged parts need to be replaced, waste of resources is reduced, and the drill bit is more convenient for people to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of drill bits, and in particular relates to a double-row tooth diamond drill bit. Background Art

[0002] Diamond composite drill bit refers to a drill bit that uses diamond composite pieces as cutting edges. It is an integrated drill bit with the advantages of high strength, high wear resistance and impact resistance. When drilling in soft to medium hard formations, the diamond composite drill bit has the advantages of fast speed, high footage, long life, stable operation, few downhole accidents, good wellbore quality, etc., and compared with diamond drill bits, it has the advantages of low cost and wide application range.

[0003] During the use of the existing diamond drill bit, since the drill bit is an integrated setting, when the drill bit is partially damaged, the damaged part cannot be replaced, which will cause the drill bit to have unbalanced cutting during the drilling process, resulting in the entire drill bit being unable to be used normally, thereby making the entire drill bit scrapped. Utility Model Content

[0004] The purpose of the utility model is to provide a double-row-teeth diamond drill bit with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A double-row-tooth diamond drill bit comprises a drill bit mounting seat, a plurality of cutting assemblies are mounted on the outside of the drill bit mounting seat, the cutting assemblies comprise two mounting plates, a slider mounted on one side of the two mounting plates, and a plurality of cutting teeth mounted on the other side of the two mounting plates, a slide groove for use with the two sliders is formed on the outside of the drill bit mounting seat, a first threaded hole is formed inside the slide groove, arc holes are formed on the sides of the two mounting plates close to each other, a fixing hole for use with the first threaded hole is formed between the two arc holes, and the fixing hole and the first threaded hole are fixedly connected by a first locking bolt.

[0007] As a further optimization solution of the present invention, the shape of the slide groove is a trapezoidal structure, and a limit block with the same shape as the slide groove is formed between the two sliding blocks.

[0008] As a further optimization solution of the utility model, a drill bit mounting rod is installed at one end of the drill bit mounting seat.

[0009] As a further optimization solution of the utility model, a locking mechanism for connecting multiple cutting components is installed at the upper center of the drill bit mounting seat.

[0010] As a further optimization scheme of the utility model, the locking mechanism includes a pressure plate, a pressure groove is opened above the drill bit mounting seat and used in conjunction with the pressure plate, a second threaded hole is opened inside the pressure groove, and multiple groups of pressing components are installed on the outside of the pressure plate, and the pressing components include a connecting plate installed on one side of the pressure plate, and a fixing rod installed at the bottom of the connecting plate. The tops of the two mounting plates that are in contact with each other are opened with arc-shaped grooves, and a limiting hole used in conjunction with the fixing rod is formed between the two arc-shaped grooves.

[0011] As a further optimization solution of the utility model, a mounting hole is opened on the top of the pressure plate, and the mounting hole is fixedly connected to the second threaded hole by a second locking bolt.

[0012] The beneficial effect of the utility model is that when the drill bit is partially damaged during use, there is no need to discard the entire drill bit, and only the damaged parts thereof need to be replaced, thereby reducing the waste of resources and making it more convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a second three-dimensional structural schematic diagram of the utility model;

[0015] Figure 3 The utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0016] In the figure: 1. drill bit mounting seat; 2. mounting plate; 3. slide groove; 4. slider; 5. pressure plate; 6. mounting hole; 7. connecting plate; 8. fixing rod; 9. pressure groove; 10. limit hole; 11. cutting tooth; 12. second threaded hole; 13. first threaded hole; 14. first locking bolt; 15. drill bit mounting rod; 16. fixing hole; 17. second locking bolt. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0018] Example 1

[0019] like Figure 1 - Figure 3As shown, a double-row-tooth diamond drill bit comprises a drill bit mounting seat 1, a plurality of cutting assemblies are installed on the outside of the drill bit mounting seat 1, and the cutting assemblies comprise two mounting plates 2, a slider 4 mounted on one side of the two mounting plates 2, and a plurality of cutting teeth 11 mounted on the other side of the two mounting plates 2, the mounting plate 2 is in an L-shaped structure and fits with the side and top of the drill bit mounting seat 1, a slide groove 3 for use with the two sliders 4 is provided on the outside of the drill bit mounting seat 1, the shape of the slide groove 3 is in a trapezoidal structure, a limit block having the same shape as the slide groove 3 is formed between the two sliders 4, a first threaded hole 13 is provided inside the slide groove 3, and a first threaded hole 13 is provided on each side of the two mounting plates 2 close to each other. An arc-shaped hole is formed between the two arc-shaped holes, and a fixing hole 16 used in conjunction with the first threaded hole 13 is formed between the two arc-shaped holes. By setting the limit block and the fixing hole 16, the connection between the two mounting plates 2 can be made tighter, thereby improving the strength of the drill bit. The fixing hole 16 and the first threaded hole 13 are fixedly connected by a first locking bolt 14. A drill mounting rod 15 is installed at one end of the drill mounting seat 1. During the installation of the cutting assembly, the two mounting plates 2 that are fitted together can be slid into the slide groove 3 together, and then the first locking bolt 14 can be screwed into the fixing hole 16 and the first threaded hole 13 corresponding to the fixing hole 16 to fix them.

[0020] It should be noted that, when in use, the two mounting plates 2 of the double-row tooth diamond drill bit are provided with a plurality of cutting teeth 11, and the plurality of cutting teeth 11 form two rows to form a double-row tooth structure. The double-row tooth design is adopted to increase the density of the cutting teeth, thereby improving the hardness of the drill bit and extending the service life of the drill bit. When one set of cutting components is damaged, the first locking bolt 14 on the damaged cutting component can be removed, and then the two adjacent mounting plates 2 can be directly slid out from the inside of the slide groove 3, and the damaged mounting plate 2 can be replaced. In this way, when the drill bit is partially damaged, there is no need to discard the entire drill bit, and only the damaged parts need to be replaced, which reduces the waste of resources and is more convenient for people to use.

[0021] Example 2

[0022] Combination Figure 1 - Figure 3As shown, on the basis of Example 1, this embodiment is further improved in that: a locking mechanism for connecting multiple cutting components is installed at the upper center of the drill bit mounting seat 1, and the locking mechanism includes a pressure plate 5, a pressure groove 9 opened above the drill bit mounting seat 1 and used in conjunction with the pressure plate 5, a second threaded hole 12 is opened inside the pressure groove 9, and multiple groups of pressing components are installed on the outside of the pressure plate 5, the height of the pressure plate 5 is lower than the upper surface of the mounting plate 2, the pressing component includes a connecting plate 7 installed on one side of the pressure plate 5, and a fixing rod 8 installed at the bottom of the connecting plate 7, the tops of the two mounting plates 2 that are in contact with each other are both provided with arc-shaped grooves, and a limiting hole 10 used in conjunction with the fixing rod 8 is formed between the two arc-shaped grooves, and a mounting hole 6 is opened on the top of the pressure plate 5, and the mounting hole 6 and the second threaded hole 12 are fixedly connected by a second locking bolt 17.

[0023] The difference between this embodiment and embodiment 1 is that: after the installation of multiple cutting components is completed, the pressure plate 5 can be pressed into the pressure groove 9. During the pressing process, the multiple fixing holes 8 will be respectively located in the multiple limiting holes 10, and then the second locking bolt 17 is screwed into the second threaded hole 12 through the installation hole 6 to fix the pressure plate 5. Under the action of the locking mechanism, not only can the multiple cutting components be further fixed, but also the connection between the multiple cutting components can be made tighter, thereby further improving the overall strength of the drill bit.

[0024] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A double-row-tooth diamond drill bit, comprising a drill bit mounting seat (1), characterized in that: The drill bit mounting seat (1) is provided with a plurality of cutting components on the outside thereof, the cutting components comprising two mounting plates (2), a slider (4) mounted on one side of the two mounting plates (2), and a plurality of cutting teeth (11) mounted on the other side of the two mounting plates (2); the drill bit mounting seat (1) is provided with a slide groove (3) for use with the two sliders (4) on the outside thereof, the slide groove (3) is provided with a first threaded hole (13) on the inside thereof, the two mounting plates (2) are provided with arc holes on one side thereof close to each other, and a fixing hole (16) for use with the first threaded hole (13) is formed between the two arc holes, the fixing hole (16) and the first threaded hole (13) being fixedly connected by a first locking bolt (14).

2. A double-row-teeth diamond drill bit according to claim 1, characterized in that: The shape of the slide groove (3) is a trapezoidal structure, and a limit block having the same shape as the slide groove (3) is formed between the two sliding blocks (4).

3. A double-row-teeth diamond drill bit according to claim 1, characterized in that: A drill bit mounting rod (15) is mounted on one end of the drill bit mounting seat (1).

4. A double-row-teeth diamond drill bit according to claim 1, characterized in that: A locking mechanism for connecting a plurality of cutting assemblies is installed at the upper center of the drill bit mounting seat (1).

5. A double-row-teeth diamond drill bit according to claim 4, characterized in that: The locking mechanism comprises a pressing plate (5), a pressing groove (9) provided above the drill bit mounting seat (1) and used in conjunction with the pressing plate (5), a second threaded hole (12) provided inside the pressing groove (9), a plurality of pressing components provided outside the pressing plate (5), the pressing components comprising a connecting plate (7) installed on one side of the pressing plate (5), and a fixing rod (8) installed at the bottom of the connecting plate (7), two arc-shaped notches provided on the tops of the two mounting plates (2) abutting against each other, and a limiting hole (10) used in conjunction with the fixing rod (8) is formed between the two arc-shaped notches.

6. A double-row-teeth diamond drill bit according to claim 5, characterized in that: A mounting hole (6) is provided on the top of the pressing plate (5), and the mounting hole (6) is fixedly connected to the second threaded hole (12) via a second locking bolt (17).

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