High-torque two-way drill rod with high adaptability

Abstract

The utility model discloses a high-adaptability large-torque two-way drill rod, which comprises a drill rod, the drill rod comprises a processing assembly and a protection assembly, the processing assembly comprises an outer rod, an inner rod, a first processing part and a second processing part, the outer rod and the inner rod can be kept relatively stable by arranging the processing assembly, so that the concentricity of the inner rod and the outer rod is effectively improved, and the service life of the drill rod is prolonged. Meanwhile, the graphite block arranged in the mounting hole in the copper sleeve can provide a good lubricating effect when the outer rod and the inner rod rotate, abrasion is reduced, the service life of the drill rod is prolonged, the abrasion resistance and corrosion resistance of the drill rod can be remarkably improved through the protection assembly, and the service life of the drill rod is prolonged. The drill rod can still keep good working performance under the complex stratum condition, the material characteristics of different protective layers complement each other, the overall protective capacity of the drill rod is further improved, and the maintenance cost and replacement frequency of equipment are reduced.

Description

Technical Field

[0001] This utility model relates to the field of drill pipe technology, and more specifically, to a highly adaptable, high-torque, bidirectional drill pipe. Background Technology

[0002] A two-way drill rod is a drilling tool widely used in engineering fields such as foundation reinforcement. It consists of two drill rods, an inner and an outer one. Through the cooperation and rotation of the inner and outer drill rods, drilling and mixing of different soil layers can be achieved, thereby achieving the purpose of foundation reinforcement. It is mainly used for the reinforcement of soft soil foundations such as silt, providing basic support for the foundation construction of some building projects.

[0003] However, traditional bidirectional drill pipes have gradually revealed many shortcomings when facing increasingly complex engineering needs. First, their torque is relatively small. When encountering construction scenarios with large diameters, deep piles, and complex strata such as hard and complex clay, they cannot provide sufficient rotational force for effective drilling, leading to construction delays or even failure to complete the task. Second, during rotation, it is difficult to ensure the concentricity of the inner and outer drill pipes. This not only affects the quality of the borehole, causing deviations in the verticality and flatness of the borehole, but also accelerates the wear of drill pipe components, increases equipment maintenance costs and replacement frequency, reduces construction efficiency and equipment lifespan, and makes it difficult to meet the requirements of modern construction engineering for high-quality, high-efficiency foundation reinforcement construction and adaptability to diverse geological conditions.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a highly adaptable high-torque bidirectional drill pipe to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A highly adaptable, high-torque, bidirectional drill pipe includes a drill pipe, which includes a treatment assembly and a protection assembly. The treatment assembly includes an outer rod, an inner rod, and treatment component one and treatment component two.

[0008] Furthermore, to better ensure the processing effect, the processing component includes a copper sleeve, which is evenly spaced between the outer rod and the inner rod. The copper sleeve has mounting holes evenly spaced on it, and graphite blocks are placed inside the mounting holes. The graphite blocks are in contact with the outer and inner walls of the outer rod and the inner rod.

[0009] Furthermore, in order to better ensure the effect of multiple lubrication treatments, the second treatment component includes a storage cavity, which is symmetrically opened at both ends inside the copper sleeve. Multiple connection holes are equally spaced on the copper sleeve, and a lubricating cotton rod is installed inside the connection hole. The lubricating cotton rod is connected to the storage cavity, and one end of the lubricating cotton rod is in contact with the outer wall and the inner wall of the outer rod and inner rod.

[0010] Furthermore, in order to better ensure the protective effect of the drill pipe, the protective component includes a first protective composite layer and a second protective composite layer, which are embedded in the outer and inner walls of the outer and inner rods, respectively.

[0011] Furthermore, in order to better ensure the protective effect of the drill pipe, the first protective composite layer includes a first protective layer and a second protective layer, which are sequentially installed on the outer wall of the outer rod.

[0012] Furthermore, in order to better ensure the protective effect of the drill pipe, the second protective composite layer includes a third protective layer and a fourth protective layer, which are sequentially installed on the inner wall of the inner rod.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) By setting up the processing components, the outer rod and the inner rod can maintain relative stability, thereby effectively improving the concentricity of the inner and outer rods and ensuring the verticality and flatness of the drill hole. At the same time, the graphite block set in the mounting hole inside the copper sleeve can provide good lubrication when the outer rod and the inner rod rotate, reduce wear, and extend the service life of the drill rod. In addition, the storage cavities at both ends inside the copper sleeve and the lubricating cotton rods connected to them can continuously provide lubricant to the outer rod and the inner rod during the operation of the drill rod, further reducing friction and improving the working efficiency and reliability of the drill rod.

[0015] (2) The protective components can significantly enhance the wear resistance and corrosion resistance of the drill rod, enabling it to maintain good working performance under complex geological conditions. The first and second protective layers are sequentially set on the outer wall of the outer rod, and the third and fourth protective layers are sequentially set on the inner wall of the inner rod. The material properties of the different protective layers complement each other, further improving the overall protective capability of the drill rod, reducing the maintenance cost and replacement frequency of the equipment, and meeting the requirements of modern construction engineering for high quality, high efficiency and adaptability to diverse geological conditions in foundation reinforcement construction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a highly adaptable, high-torque bidirectional drill rod according to an embodiment of the present utility model;

[0018] Figure 2 This is a side sectional view of a highly adaptable, high-torque, bidirectional drill pipe according to an embodiment of the present utility model;

[0019] Figure 3 This is a partial structural side sectional view of a processing component for a highly adaptable high-torque bidirectional drill pipe according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of a protective component structure for a highly adaptable, high-torque, bidirectional drill pipe according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Drill rod; 2. Processing assembly; 3. Protective assembly; 4. Outer rod; 5. Inner rod; 6. Copper sleeve; 7. Mounting hole; 8. Graphite block; 9. Storage cavity; 10. Connecting hole; 11. Lubricating cotton swab; 12. First protective composite layer; 13. Second protective composite layer. Detailed Implementation

[0023] 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.

[0024] Example 1:

[0025] like Figures 1-3 As shown, a highly adaptable high-torque bidirectional drill rod according to an embodiment of the present utility model includes a drill rod 1. The connection method of the drill rod 1 is the existing conventional method, so it will not be described in detail. The drill rod 1 includes a processing component 2 and a protective component 3. The processing component 2 includes an outer rod 4, an inner rod 5, and processing component one and processing component two.

[0026] The processing component includes a copper sleeve 6, which is evenly spaced between the outer rod 4 and the inner rod 5. The copper sleeve 6 has evenly spaced mounting holes 7, and each mounting hole 7 contains a graphite block 8. The graphite block 8 is a conventional lubrication method and will not be described in detail. The method of fixing the graphite block 8 to the mounting holes 7 is also a conventional technique and will not be described in detail. The spacing between each graphite block 8 is three meters, and the graphite block 8 contacts the outer and inner walls of the outer rod 4 and the inner rod 5. The outer rod 4 has a diameter of 180 x 16 mm, the inner rod 5 has a diameter of 133 x 18 mm, and the gap between the inner and outer rods is 7.5 mm. The matching motor has a power of 132 kW and a torque of 30,000 N·m. The piling depth does not exceed 30 meters, and the diameter is less than 1000 mm.

[0027] The second processing component includes a storage cavity 9, which is symmetrically located at both ends inside the copper sleeve 6. The copper sleeve 6 has multiple connecting holes 10 at equal intervals. A lubricating cotton rod 11 is installed inside the connecting hole 10 and is connected to the storage cavity 9. One end of the lubricating cotton rod 11 is in contact with the outer wall and inner wall of the outer rod 4 and inner rod 5. The storage cavity 9 is filled with lubricating fluid, and the lubricating cotton rod 11 is a fiber cotton rod used to conduct the lubricating fluid inside the storage cavity 9.

[0028] Example 2:

[0029] like Figure 4 As shown, according to an embodiment of the present utility model, a highly adaptable high-torque bidirectional drill rod has a protective component 3 including a first protective composite layer 12 and a second protective composite layer 13, which are embedded in the outer wall and inner wall of the outer rod 4 and the inner rod 5, respectively.

[0030] The first protective composite layer 12 includes a first protective layer and a second protective layer, which are sequentially disposed on the outer wall of the outer rod 4.

[0031] The second protective composite layer 13 includes a third protective layer and a fourth protective layer, which are sequentially disposed on the inner wall of the inner rod 5.

[0032] The first, second, third, and fourth protective layers are all composed of a metal-based ceramic composite layer and a modified epoxy powder coating.

[0033] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0034] In summary, with the help of the above-mentioned technical solution of this utility model, when the drill rod 1 is working, the outer rod 4 and the inner rod 5 rotate together. The copper sleeve 6 is evenly spaced between the outer rod 4 and the inner rod 5. Graphite blocks 8 are installed inside the equally spaced mounting holes 7 on the copper sleeve 6. The graphite blocks 8 contact the outer and inner walls of the outer rod 4 and the inner rod 5, thereby providing good lubrication and reducing wear when the outer rod 4 and the inner rod 5 rotate. At the same time, the storage cavities 9 symmetrically opened at both ends inside the copper sleeve 6 are filled with lubricating fluid. Multiple connecting holes 10 equally spaced on the copper sleeve 6 are filled with lubricating cotton rods 11. The lubricating cotton rods 11 are connected to the storage cavities 9, and one end of them contacts the outer and inner walls of the outer rod 4 and the inner rod 5, which can continuously provide lubricating fluid to the outer rod 4 and the inner rod 5 during the operation of the drill rod 1, further reducing friction. In addition, the first protective composite layer 12 and the second protective composite layer 13 are respectively embedded in the outer... The drill rod 1 has an outer and inner wall, with the first protective composite layer 12 consisting of a first and second protective layer sequentially disposed on the outer wall of the outer rod 4, and the second protective composite layer 13 consisting of a third and fourth protective layer sequentially disposed on the inner wall of the inner rod 5. These protective layers are all composed of a metal-based ceramic composite layer and a modified epoxy powder coating. The complementary material properties significantly enhance the wear resistance and corrosion resistance of the drill rod, enabling it to maintain good working performance under complex geological conditions, reducing equipment maintenance costs and replacement frequency. Through the synergistic effect of the copper sleeve 6, graphite block 8, storage cavity 9, lubricating cotton rod 11, and each protective layer, the drill rod 1 can adapt to complex geological conditions, effectively improve the concentricity of the inner and outer rods, ensure the verticality and flatness of the borehole, extend its service life, and meet the requirements of modern construction engineering for high-quality, high-efficiency foundation reinforcement construction and adaptability to diverse geological conditions.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A strong-adapted large-torque bidirectional drill pipe, characterized by, It includes a drill pipe (1), which includes a processing component (2) and a protective component (3). The processing component (2) includes an outer rod (4), an inner rod (5), and processing component one and processing component two.

2. The strong-adaptability large-torque bidirectional drill pipe according to claim 1, characterized in that, The processing component includes a copper sleeve (6), which is evenly spaced between the outer rod (4) and the inner rod (5). The copper sleeve (6) has mounting holes (7) evenly spaced on it, and a graphite block (8) is placed inside the mounting hole (7). The graphite block (8) is in contact with the outer wall and inner wall of the outer rod (4) and the inner rod (5).

3. The strong-adaptability large-torque bidirectional drill pipe according to claim 2, characterized in that, The second processing component includes a storage cavity (9), which is symmetrically opened at both ends inside the copper sleeve (6). Multiple connecting holes (10) are equally spaced on the copper sleeve (6). A lubricating cotton rod (11) is installed inside the connecting hole (10), and the lubricating cotton rod (11) is connected to the storage cavity (9). One end of the lubricating cotton rod (11) is in contact with the outer wall and inner wall of the outer rod (4) and inner rod (5).

4. The strong-adaptability large-torque bidirectional drill pipe of claim 3, characterized in that, The protective component (3) includes a first protective composite layer (12) and a second protective composite layer (13), which are embedded in the outer and inner walls of the outer rod (4) and the inner rod (5).

5. The strong-adaptability large-torque bidirectional drill pipe of claim 4, wherein, The first protective composite layer (12) includes a first protective layer and a second protective layer, which are sequentially disposed on the outer wall of the outer rod (4).

6. The highly adaptable, high-torque, bidirectional drill pipe according to claim 5, characterized in that, The second protective composite layer (13) includes a third protective layer and a fourth protective layer, which are sequentially arranged on the inner wall of the inner rod (5).

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