Energy-saving and environment-friendly rock-entering down-the-hole drilling tool

Abstract

The utility model discloses an energy-saving and environment-friendly rock-entering down-the-hole drilling tool, which belongs to the technical field of drilling tools and comprises an impactor, and a plurality of drill bits are arranged at the end of the impactor. A cavity is formed in the impactor, and the drill bits are arranged around the cavity in an annular array mode. The drill bit comprises a spline in power connection with the impactor, a drilling part is arranged at the front end of the spline and comprises a connecting table and a cutting part, a plurality of alloys are arranged on the front end face of the cutting part, and a main air hole completely penetrating through the drilling part is further formed in the drill bit. The utility model is used for solving the technical problems of high energy consumption and large dust in the drilling operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling tools, in particular to an energy-saving and environment-friendly rock-penetrating down-the-hole drilling tool. Background Art

[0002] Drilling operations typically involve using specialized drill bits to create a hole of the desired depth in a designated area. Currently, drilling techniques typically involve either one-shot hole creation or secondary hole enlargement. Regardless of the method, the drill bit must be designed with a large cutting area to reduce the material in the hole to debris and discharge it. This drilling method is not only energy-intensive and costly, but also generates significant amounts of dust during the drilling process, negatively impacting the environment.

[0003] To address these issues, we have developed a new down-the-hole drill bit that is more energy-efficient than traditional drill bits and significantly reduces dust generated during drilling. This will help reduce energy consumption during drilling operations while mitigating environmental impact, providing a more environmentally friendly and economical solution for the drilling industry. Utility Model Content

[0004] In view of the above problems, the utility model provides an energy-saving and environmentally friendly rock-penetrating down-the-hole drill tool, which is used to solve the technical problems of high energy consumption and large dust in drilling operations.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An energy-saving and environmentally friendly down-the-hole rock drilling tool comprises an impactor, a plurality of drill bits are arranged at the end of the impactor; a cavity is provided on the impactor, and the drill bits are arranged in a circular array around the cavity;

[0007] The drill bit includes a spline that is dynamically connected to the impactor. The front end of the spline is provided with a drilling part, which includes a connecting platform and a cutting part. The front end surface of the cutting part is provided with a plurality of alloys, and the drill bit is also provided with a main air hole that passes through completely.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging the drill bit annular array on the impactor, multiple drill bits can be used in combination, and a hollow cavity is provided on the impactor, which can reduce the crushing of the rock strata. Only the rock strata passed by the drill bit need to be crushed. Compared with the traditional drill bit, the drilling area can be reduced. Therefore, the energy consumption in the drilling process can be reduced and the drilling cost can be reduced. The smaller drilling area also means that fewer rock strata are crushed, which can significantly reduce the dust in the drilling process. The remaining drill core can be taken out by a coring machine, which is more environmentally friendly.

[0009] As a further improvement of the above solution, the outer edge of the impactor does not exceed the outer edge of the cutting portion; the inner edge of the drill bit penetrates into the cavity.

[0010] The technical effect of the above improvement is: by setting the cutting part to extend beyond the outer edge of the impactor and penetrate into the cavity, the impactor can move in the channel drilled by the drill bit, and the drill core left in the central part can penetrate into the cavity, thereby ensuring the normal progress of the drilling process.

[0011] As a further improvement of the above solution, the cutting portion is provided with several side edges, including first edges arranged parallel to each other, and an outwardly protruding second edge and an inwardly recessed second edge and a third edge are provided between the two first edges through an arc transition.

[0012] As a further improvement of the above scheme, the first tooth surface, the second tooth surface, and the third tooth surface are respectively transitionally arranged between the first edge, the second edge, the third edge and the front end face of the cutting part, and the first tooth surface, the second tooth surface, and the third tooth surface are also respectively provided with a number of alloys.

[0013] The technical effect of the above improvement is: the first edge can be set to clean the drill cuttings during the drilling process, the second edge and the third edge can contact the drilled hole wall, thereby removing the residual rock layer on the hole wall, so that drilling can proceed normally and avoid getting stuck, and the alloy set on the cutting part and the first tooth surface, the second tooth surface, and the third tooth surface cuts the rock layer during the rotation process.

[0014] As a further improvement of the above solution, the drill bit is further provided with a connecting portion and a limiting platform which are interconnected with the impactor.

[0015] As a further improvement of the above solution, the connecting platform is cylindrical, the cutting part is sheet-shaped, and the connecting platform and the cutting part are transitioned to each other through an arc.

[0016] The technical effect of the above improvement is that through the provision of splines, connecting parts and limit platforms, it is possible to connect to different impactors, so that the drill bit can be used for both combined cutting and drilling and single drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the drill bit of the utility model;

[0018] Figure 2 for Figure 1 Left view in;

[0019] Figure 3 This is a schematic structural diagram of the first embodiment of the present invention;

[0020] Figure 4 This is a schematic structural diagram of a second embodiment of the present invention.

[0021] In the figure: 1. Drilling part; 11. Connecting platform; 12. Cutting part; 13. First edge; 14. Second edge; 15. Third edge; 16. First tooth surface; 17. Second tooth surface; 18. Third tooth surface; 2. Spline; 4. Alloy; 5. Main air hole; 6. Connecting part; 7. Limiting platform; 20. Impactor; 21. Cavity; 22. Drill bit. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with the embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0023] like Figure 1-4 As shown, the specific solution of this embodiment is: an energy-saving and environmentally friendly rock-penetrating down-the-hole drilling tool, including an impactor 20, which is an existing technology for installing a drill bit. The main structure of the impactor 20 refers to the existing impactor, and the difference from the existing technology is that the end of the impactor 20 is provided with a plurality of drill bits 22; the impactor 20 is provided with a cavity 21, as shown in the attached Figure 3 、 4 As shown, the drill bits 22 are arranged in a circular array around the cavity 21. Figure 3 、 4 Two different drilling tools are shown, which mainly differ in the number of drill bits 22 provided. Generally, different drilling tools are selected according to the size of the drilling hole. The larger the hole, the more drill bits 22 are provided. During the drilling process, the hammer 20 rotates around the central axis, driving the drill bit 22 to rotate and cut the rock layer. The drill core is not retained at the center of the cut rock layer, and the drill core penetrates into the cavity 21, thereby reducing the drilling area during the drilling process. It is not necessary to cut away all the rock layers in the hole, thereby reducing energy consumption and saving costs. Less cutting can also reduce dust generation, meeting environmental protection requirements. The final drill core can be removed by a coring machine.

[0024] The drill bit 22 includes a spline 2 that is dynamically connected to the impactor 20. The front end of the spline 2 is provided with a drilling portion 1. The drilling portion 1 includes a connecting platform 11 and a cutting portion 12. The connecting platform 11 is cylindrical and the cutting portion 12 is sheet-shaped. The connecting platform 11 and the cutting portion 12 transition from each other through an arc. The connecting platform 11 is used to connect the cutting portion 12 and the spline 2, so that the size of the entire drill bit 22 can be gradually changed in a stepped manner, thereby improving the overall strength of the drill bit 22. The front end surface of the cutting portion 12 is provided with a plurality of alloys 4, and the drill bit 22 is provided with a plurality of alloys 4. The head 22 is also provided with a main air hole 5 that passes through it completely. The drill bit 22 is also provided with a connecting part 6 and a limit platform 7 that are interconnected with the impactor 20. Through the provided spline 2, connecting part 6, and limit platform 7, it can be connected to different impactors. Therefore, the entire drill bit 22 can be installed on the impactor 20 for combined use, or can be installed on an impactor for separate use; specifically, during operation, when the drill bit 22 moves, the alloy 4 can squeeze and crush the rock formation, and the main air hole 5 is connected to the gas source to spray gas outward, thereby facilitating the blowing away of the broken rock.

[0025] As a preferred embodiment of the above embodiment, the outer edge of the impactor 20 does not exceed the outer edge of the cutting portion 12. Figure 3 、 4 The inner edge of the drill bit 22 penetrates into the cavity 21. This arrangement allows the impactor 20 to move smoothly in the hole drilled by the drill bit 22, avoiding contact between the drill core and the inner wall of the cavity 21, and thus making it easier to discharge the broken rock during the drilling process.

[0026] As a preferred embodiment of the above embodiment, the cutting portion 12 is provided with a plurality of side edges, including first edges 13 arranged parallel to each other. The first edges 13 can clean up the cut rock during drilling, especially when used in combination. A second edge 14 protruding outwards and a second edge 14 and a third edge 15 recessed inwards are provided between the two first edges 13 via an arc transition. The second edge 14 and the third edge 15 are mainly used to cut and smooth the remaining rock layer on the hole wall during combined use. When used separately, the first edge 13, the second edge 14, and the third edge 15 can provide space for accommodating the cut rock.

[0027] A first tooth surface 16, a second tooth surface 17, and a third tooth surface 18 are respectively provided transitionally between the first edge 13, the second edge 14, and the third edge 15 and the front end surface of the cutting portion 12. A plurality of alloys 4 are also respectively provided on the first tooth surface 16, the second tooth surface 17, and the third tooth surface 18. The alloys 4 provided on the first tooth surface 16, the second tooth surface 17, and the third tooth surface 18 participate in rock breaking, thereby improving the efficiency of rock breaking.

[0028] It should be noted that, in this article, the terms include, contain or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used herein to illustrate the principles and implementation methods of the technical solution of the present utility model. The above examples are only used to help understand the method of the present utility model and its core idea. The above is only a preferred embodiment of the present utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should all be regarded as the scope of protection of the present utility model.

Claims

1. An energy-saving and environmentally friendly down-the-hole drilling tool, characterized in that: The hammer (20) comprises a plurality of drill bits (22) provided at the end of the hammer (20); a cavity (21) is provided on the hammer (20), and the drill bits (22) are arranged in a circular array around the cavity (21); The drill bit (22) includes a spline (2) that is dynamically connected to the impactor (20). A drilling portion (1) is provided at the front end of the spline (2). The drilling portion (1) includes a connecting platform (11) and a cutting portion (12). A plurality of alloys (4) are provided on the front end surface of the cutting portion (12). The drill bit (22) is also provided with a main air hole (5) that completely penetrates the drill bit.

2. The energy-saving and environmentally friendly down-the-hole drilling tool according to claim 1, characterized in that: The outer edge of the impactor (20) does not exceed the outer edge of the cutting portion (12); the inner edge of the drill bit (22) penetrates into the cavity (21).

3. The energy-saving and environmentally friendly down-the-hole drilling tool according to claim 1, characterized in that: The cutting portion (12) is provided with a plurality of side edges, including first edges (13) arranged parallel to each other, and an outwardly protruding second edge (14) and an inwardly recessed second edge (14) and a third edge (15) are provided between the two first edges (13) via an arc transition.

4. The energy-saving and environmentally friendly down-the-hole drilling tool according to claim 3, characterized in that: A first tooth surface (16), a second tooth surface (17), and a third tooth surface (18) are respectively provided transitionally between the first edge (13), the second edge (14), and the third edge (15) and the front end surface of the cutting portion (12); and a plurality of alloys (4) are also respectively provided on the first tooth surface (16), the second tooth surface (17), and the third tooth surface (18).

5. The energy-saving and environmentally friendly down-the-hole drilling tool according to any one of claims 1 to 4, characterized in that: The drill bit (22) is also provided with a connecting portion (6) and a limiting platform (7) which are interconnected with the impactor (20).

6. The energy-saving and environmentally friendly down-the-hole drilling tool according to claim 5, characterized in that: The connecting platform (11) is cylindrical, the cutting portion (12) is sheet-shaped, and the connecting platform (11) and the cutting portion (12) are transitioned to each other through an arc.

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