Drilling tool and detector embedding device

Abstract

The utility model discloses a drilling tool and a detector embedding device, which belong to the technical field of geophysical exploration, the drilling tool comprises a drill rod assembly and a drill bit assembly, the drill rod assembly comprises a rod body, a joint and a blade, the joint is fixedly connected to one end of the rod body, and the joint is used for connecting the output end of a machine body; the blades are arranged on the periphery of the rod body; the drill bit assembly comprises a supporting part, a main scraper and an auxiliary scraper, one end of the supporting part is detachably and coaxially connected to the end, away from the connector, of the rod body, the other end of the supporting part is connected with the main scraper, and the auxiliary scraper is connected to the periphery of the supporting part. The detector embedding device comprises a machine body and the drilling tool. Through cooperation of the drill rod assembly and the drill bit assembly, the drilling tool is good in drilling effect, convenient to transport and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of geophysical exploration technology, and in particular to a drilling tool and a geophone burial device. Background Technology

[0002] As the requirements for geophysical accuracy continue to rise, and exploration targets gradually shift towards deeper layers, extremely stringent requirements are placed on the resolution of seismic data. Geophones are specialized sensors used in seismic exploration and engineering surveying; they are sensors that convert ground vibrations into electrical signals, and are energy conversion devices that convert mechanical energy into electrical energy. The coupling between the geophone and the ground during installation is one of the important factors affecting the reception of seismic information; the degree of coupling between the geophone and the ground during installation plays a decisive role in the quality of seismic data.

[0003] However, in the current process of burying detectors, the excavation of the pit is still carried out manually by construction workers using shovels and picks. This traditional manual excavation method consumes a lot of physical strength and time and is extremely inefficient.

[0004] Some existing technologies employ simple drilling tools to assist in excavating geophone placement holes. However, these tools offer poor drilling performance and cannot meet the drilling requirements under complex geological conditions. Furthermore, existing drilling tools are generally bulky. In some exploration or monitoring projects, work sites may be located in remote mountainous areas, jungles, or other areas with poor transportation access. Transporting existing drilling tools is extremely difficult, often requiring the use of large transport equipment, increasing transportation costs. Moreover, if any component fails, the entire drilling tool typically needs to be replaced, resulting in high replacement costs. Utility Model Content

[0005] The purpose of this utility model is to provide a drilling tool and detector embedding device to solve the technical problems of low efficiency of manual digging and poor digging effect and high cost of existing drilling tools.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] On the one hand, this utility model provides a drilling tool, including:

[0008] The drill pipe assembly includes a rod body, a connector, and blades. The connector is fixedly connected to one end of the rod body and is used to connect to the output end of the machine body. The blades are disposed on the outer periphery of the rod body.

[0009] A drill bit assembly includes a support, a main scraper, and an auxiliary scraper. One end of the support is detachable and coaxially connected to the end of the rod away from the connector. The other end of the support is connected to the main scraper, and the auxiliary scraper is connected to the outer periphery of the support.

[0010] Preferably, the blade has a single helical structure, and the blade is wound around and fixedly connected to the outer periphery of the rod.

[0011] Preferably, the outer diameter of the blade gradually increases along the axis of the rod from the support portion to the joint.

[0012] Preferably, the diameter of the trajectory of the auxiliary scraper rotating around the axis of the support is greater than the minimum outer diameter of the blade.

[0013] Preferably, two auxiliary scrapers are provided, and the two auxiliary scrapers are symmetrically arranged on both sides of the support.

[0014] Preferably, in the direction from the main scraper to the rod, the auxiliary scraper is inclined away from the support, and the axis of the auxiliary scraper forms a first angle with the axis of the support.

[0015] Preferably, the first included angle is greater than or equal to 10 degrees and less than or equal to 30 degrees.

[0016] Preferably, the main scraper includes a head and a body, the head and the body are integrally formed, the body is fixedly connected to the support, and the head forms a tip in a direction away from the support.

[0017] Preferably, the main scraper is located in a first plane, and the auxiliary scraper is located in a second plane, with the first plane and the second plane being perpendicular to each other.

[0018] On the other hand, the present invention also provides a detector embedding device, including a body and the aforementioned drill bit, wherein the body is detachably connected to the connector, and the body is used to drive the drill rod assembly and the drill bit assembly to rotate around their own axis.

[0019] The beneficial effects of this utility model are:

[0020] The drilling tool proposed in this utility model is used by connecting the support part to the rod body, so that the drill rod assembly and the drill bit assembly cooperate to form a complete drilling tool. Then, the joint of the drill rod assembly is connected to the output end of the machine body, and after ensuring that the drill bit assembly is aligned with the area to be mined, the machine body drives the drilling tool to start rotating and gradually lowering it, thereby excavating the area to be mined. After excavating to the target depth, the machine body is stopped, the drilling tool is pulled out, and the excavation operation is completed. Afterwards, the geophone is placed in the pit, and the soil around the pit is buried in the pit to completely cover the geophone, thereby realizing the coupling between the geophone and the ground.

[0021] The blades of the drill rod assembly are located on the outer periphery of the rod, which can mix and loosen the surrounding soil during excavation, helping to remove drill cuttings and improve drilling efficiency. In the drill bit assembly, the main scraper is connected to one end of the support and performs the main cutting work on the area to be excavated; the auxiliary scraper is connected to the outer periphery of the support and can perform hole wall trimming and enlargement operations, allowing the drilling tool to adapt to excavation operations under various complex geological conditions and achieve good drilling results. Furthermore, the drilling tool uses a detachable connection between the drill rod assembly and the drill bit assembly, which allows the drilling tool to be disassembled for transportation, facilitating handling and saving transportation costs. At the same time, since the drill bit assembly is a consumable part, the detachable connection makes it easy to replace, saving on operating costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first structure of the drilling tool provided in Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic diagram of the second structure of the drilling tool provided in Embodiment 1 of this utility model;

[0024] Figure 3 This is a schematic diagram of the drill pipe assembly provided in Embodiment 1 of this utility model;

[0025] Figure 4 This is a schematic diagram of the drill bit assembly provided in Embodiment 1 of this utility model.

[0026] In the picture:

[0027] 1. Drill pipe assembly; 11. Drill pipe body; 12. Connector; 13. Blade;

[0028] 2. Drill bit assembly; 21. Support part; 22. Main scraper; 221. Head; 222. Body; 23. Auxiliary scraper; 24. Connecting part. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] See Figures 1 to 4 The drilling tool provided in this embodiment of the utility model includes a drill rod assembly 1 and a drill bit assembly 2. The drill rod assembly 1 includes a rod body 11, a connector 12, and a blade 13. The connector 12 is fixedly connected to one end of the rod body 11 and is used to connect to the output end of the machine body. The blade 13 is disposed on the outer periphery of the rod body 11. The drill bit assembly 2 includes a support portion 21, a main scraper 22, and an auxiliary scraper 23. One end of the support portion 21 is detachable and coaxially connected to the end of the rod body 11 away from the connector 12. The other end of the support portion 21 is connected to the main scraper 22, and the auxiliary scraper 23 is connected to the outer periphery of the support portion 21.

[0035] The drilling tool proposed in this utility model is used by connecting the support part 21 to the rod body 11, so that the drill rod assembly 1 and the drill bit assembly 2 cooperate to form a complete drilling tool. Then, the joint 12 of the drill rod assembly 1 is connected to the output end of the machine body, and after ensuring that the drill bit assembly 2 is aligned with the area to be mined, the machine body drives the drilling tool to start rotating and gradually lower it, thereby excavating the area to be mined. After excavating to the target depth, the machine body is stopped, the drilling tool is lifted out, and the excavation operation is completed. Afterwards, the geophone is placed in the pit, and the soil around the pit is buried in the pit to completely cover the geophone, so that the geophone is coupled with the ground.

[0036] The blades 13 of the drill rod assembly 1 are located on the outer periphery of the rod body 11, and can play a role in mixing and loosening the surrounding soil during excavation, which helps to remove drill cuttings and improve drilling efficiency. In the drill bit assembly 2, the main scraper 22 is connected to one end of the support 21 and can perform the main cutting work on the area to be excavated; the auxiliary scraper 23 is connected to the outer periphery of the support 21 and can perform hole wall trimming and hole enlargement operations, so that the drill bit can adapt to excavation operations under various complex geological conditions and achieve good drilling results. Moreover, the drill bit assembly 1 and the drill bit assembly 2 are detachably connected, so the drill bit assembly can be disassembled during transportation, which is convenient for handling and transportation and saves transportation costs. At the same time, since the drill bit assembly 2 is a consumable part, the detachable connection makes the drill bit assembly 2 easy to replace, saving operating costs.

[0037] The specific structure of the drilling tool is described below.

[0038] See Figure 3 The drill pipe assembly 1 serves as an intermediary component for connecting the machine body and the drill bit assembly 2. Specifically, one end of the rod 11 is provided with a connector 12, through which the rod 11 is connected to the machine body.

[0039] Specifically, the connector 12 is a hollow cylinder that extends perpendicularly to the rod 11. Threads are formed on the inner wall of the connector 12, and the connector 12 is threadedly connected to the output end of the machine body. In other embodiments, the connector 12 and the machine body can also be connected by a pin, a snap-fit ​​connection, or a bolt connection, etc. Similarly, the shape and structure of the connector 12 can be adjusted accordingly, and are not limited here.

[0040] The rod body 11 is equipped with blades 13, which are used to mix and loosen the surrounding soil during the excavation process, and help to remove drill cuttings.

[0041] Specifically, the blade 13 has a single helical structure, which is wound around and fixedly connected to the outer periphery of the rod 11. The single helical structure can form a continuous and stable cuttings removal channel, allowing drill cuttings to be discharged more smoothly from the bottom of the borehole to the ground, thus avoiding the accumulation of drill cuttings inside the borehole. At the same time, when the blade 13 rotates, it will generate a directional stirring effect on the surrounding soil. The shape of the helix allows the blade 13 to stir and loosen the soil along the helical direction while cutting into the soil, thus expanding the range of its effect on the surrounding soil.

[0042] More specifically, from the support 21 to the connector 12, the outer diameter of the blade 13 gradually increases along the axis of the rod 11. Since the outer diameter of the blade 13 near the drill bit assembly 2 (where the support 21 is located) is relatively small, when the drill bit begins to drill into the area to be mined, the smaller outer diameter blade 13 cuts into the soil more easily, reducing initial drilling resistance and allowing the main scraper 22 and auxiliary scraper 23 of the drill bit assembly 2 to perform initial cutting work more effectively. As the drill bit continues to drill, the outer diameter of the blade 13 gradually increases, which also plays a role in reaming the hole, coordinating with the hole wall trimming and reaming operations of the auxiliary scraper 23 in the drill bit assembly 2. Furthermore, during the drilling process, as drill cuttings are conveyed upwards with the blade 13, the cuttings removal channel gradually widens, helping the drill cuttings to be discharged from the borehole more quickly and smoothly, further optimizing the cuttings removal efficiency.

[0043] Preferably, the diameter of the trajectory of the auxiliary scraper 23 rotating around the axis of the support 21 is greater than the minimum outer diameter of the blade 13. This makes it easier for the sand generated by the drill bit assembly 2 rotating and cutting the soil during drilling to be thrown towards the borehole wall under centrifugal force. Because the auxiliary scraper 23 has a larger trajectory diameter, the space near the borehole wall is relatively larger, making it easier for sand to accumulate there and be quickly thrown out of the pit under continuous centrifugal force. This improves sand removal efficiency, prevents sand from accumulating in the hole and affecting drilling progress and quality, and ensures that the drilling tool can efficiently complete the drilling operation.

[0044] In other embodiments, the blade 13 may be a multi-helix structure, a straight blade structure, a stepped blade structure, etc., which will not be elaborated here.

[0045] The end of the rod 11 away from the connector 12 is used to connect to the drill bit assembly 2. Specifically, the rod 11 adopts a hollow structure, and a tapered threaded hole is formed at the bottom of the rod 11. The end of the support part 21 away from the main scraper 22 is provided with a connecting part 24. The connecting part 24 is set as a tapered shape that is adapted to the tapered bolt hole. A threaded groove is opened on the outer periphery of the connecting part 24, and the rod 11 and the connecting part 24 are connected by threads.

[0046] Preferably, the wall thickness of the rod 11 is 20mm, which can avoid deformation of the rod 11 due to excessive rotational torque, and at the same time increase the connection area between the blade 13 and the rod 11, so as to avoid tearing caused by excessive rotational torque of the blade 13.

[0047] The drill bit assembly 2 is located at the end of the drill bit. Through the cooperation of the main scraper 22 and the auxiliary scraper 23, the cutting and drilling process of the part to be mined is realized.

[0048] See Figure 4Two auxiliary scrapers 23 are provided, symmetrically arranged on both sides of the support 21. During the rotation of the drill bit, they can apply uniform force to the borehole wall from two opposite directions, improving the drilling quality. They can also balance the lateral forces generated by the drill bit during drilling due to uneven borehole walls or uneven soil. When one side encounters greater resistance, the auxiliary scraper 23 on the other side can provide reverse support and adjustment, keeping the drill bit on a stable axis of rotation and reducing the possibility of drill bit swaying and deviation.

[0049] In other embodiments, three or four auxiliary scrapers 23 may be provided and arranged in a circular array around the outer periphery of the support portion 21, which will not be described in detail here.

[0050] Preferably, from the main scraper blade 22 to the rod body 11, the auxiliary scraper blade 23 is inclined away from the support part 21, and the axis of the auxiliary scraper blade 23 forms a first angle with the axis of the support part 21. This design ensures that the auxiliary scraper blade 23 forms a slant angle with the ground when drilling. The slant angle makes it easier for the auxiliary scraper blade 23 to cut into the soil when it initially contacts the ground, reducing drilling resistance. Especially when facing relatively compact soil or shallow rock layers, the slant cutting method can effectively break the surface, reduce the power required to start the drill bit, and improve drilling efficiency.

[0051] The first included angle is greater than or equal to 10 degrees and less than or equal to 30 degrees. This can prevent the angle from being too small, resulting in an insignificant cutting effect and difficulty in effectively reducing drilling resistance, which would be detrimental to the drilling tool's ability to cut into harder formations; and it can also prevent the included angle from being too large, which, although the initial cutting may be relatively easy, would result in excessive lateral forces on the drilling tool during drilling, leading to decreased drilling tool stability and a tendency for borehole deviation.

[0052] In this embodiment, the first included angle is 20 degrees. In addition, the first included angle can also be 10 degrees, 15 degrees, 25 degrees, 30 degrees, etc., and is not limited here.

[0053] Understandably, in order to facilitate the installation and fitting of the drill bit assembly 2, since the auxiliary scraper 23 is inclined relative to the support 21, the support 21 is set as a cone and adapted to the inclination angle of the auxiliary scraper 23, so that the two sides of the support 21 naturally have inclined sides to achieve a perfect fit with the auxiliary scraper.

[0054] The main scraper blade 22 includes a head 221 and a body 222, which are integrally formed. The body 222 is fixedly connected to the support 21, and the head 221 forms a pointed tip in a direction away from the support 21. Since the head 221 is the first to contact and cut into the ground, the pointed tip, as the part of the head 221 that first contacts the ground, helps guide the drilling direction of the drill bit, provides a relatively stable guiding effect for the drill bit, reduces borehole deviation caused by uneven geological conditions or external interference, improves the verticality and accuracy of the borehole, and ensures that the drilled hole meets the predetermined requirements.

[0055] Preferably, the main scraper 22 is located in a first plane, and the auxiliary scraper 23 is located in a second plane, with the first and second planes perpendicular to each other. This arrangement results in the main scraper 22 and the auxiliary scraper 23 being arranged in a cross shape. This perpendicular arrangement ensures a wider contact surface during drilling, making the stress on the entire drill bit more distributed during the drilling process. When encountering complex geological conditions, such as areas with uneven hardness in the formation, the scrapers on different planes can distribute the drilling pressure from multiple angles, preventing damage to the drill bit due to excessive local stress and extending the service life of the drill bit.

[0056] Example 2

[0057] This utility model also provides a detector embedding device, including a body and the drill bit provided in Embodiment 1. The body is detachably connected to the connector 12, and the body is used to drive the drill rod assembly 1 and the drill bit assembly 2 to rotate around their own axis. Combining the drill bit and the body to form the detector embedding device integrates the drilling and detector embedding preparation work. The body can directly drive the drill rod assembly 1 and the drill bit assembly 2 to rotate around their own axis, making the drilling operation continuous and efficient. As the drill bit is a vulnerable component, its detachable design from the body makes replacing the drill bit more convenient and reduces maintenance costs.

[0058] Specifically, a tractor is used as the machine body, providing strong and stable power output to the drilling tools. Tractors are relatively easy to operate, and most operators can master them after basic training. Furthermore, tractors are commonly found on the market, effectively reducing the overall cost of the detector embedding device.

[0059] Understandably, since tractors and their power output heads are widely used in agricultural production, their working principles and specific structures will not be elaborated upon here.

[0060] In other embodiments, the machine body may also be an electric drilling rig, a vehicle-mounted drilling rig, or a hydraulic drilling rig, etc., and is not limited thereto.

[0061] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drill, characterized in that include: The drill pipe assembly (1) includes a rod body (11), a connector (12), and a blade (13). The connector (12) is fixedly connected to one end of the rod body (11) and is used to connect to the output end of the machine body. The blade (13) is disposed on the outer periphery of the rod body (11). The drill bit assembly (2) includes a support (21), a main scraper (22) and an auxiliary scraper (23). One end of the support (21) is detachable and coaxially connected to the end of the rod (11) away from the joint (12). The other end of the support (21) is connected to the main scraper (22). The auxiliary scraper (23) is connected to the outer periphery of the support (21).

2. The drill string of claim 1, wherein, The blade (13) has a single helical structure and is wound around and fixedly connected to the outer periphery of the rod (11).

3. The drill string of claim 2, wherein, The outer diameter of the blade (13) gradually increases along the axis of the rod (11) from the support (21) to the joint (12).

4. The drill string of claim 3, wherein, The diameter of the trajectory of the auxiliary scraper (23) rotating around the axis of the support (21) is greater than the minimum outer diameter of the blade (13).

5. The drill string of claim 1, wherein, Two auxiliary scrapers (23) are provided, and the two auxiliary scrapers (23) are symmetrically arranged on both sides of the support (21).

6. The drill string of claim 5, wherein, From the main scraper (22) to the rod (11), the auxiliary scraper (23) is inclined away from the support (21), and the axis of the auxiliary scraper (23) forms a first angle with the axis of the support (21).

7. The drilling tool according to claim 6, characterized in that, The first included angle is greater than or equal to 10 degrees and less than or equal to 30 degrees.

8. The drill string of claim 1, wherein, The main scraper (22) includes a head (221) and a body (222), the head (221) and the body (222) are integrally formed, the body (222) is fixedly connected to the support (21), and the head (221) forms a tip in a direction away from the support (21).

9. The drill string of claim 8, wherein, The main scraper (22) is located in the first plane, and the auxiliary scraper (23) is located in the second plane. The first plane and the second plane are arranged perpendicularly.

10. A geophone embedding device, comprising: Includes a body and a drill bit as described in any one of claims 1-9, wherein the body is detachably connected to the connector (12), and the body is used to drive the drill rod assembly (1) and the drill bit assembly (2) to rotate about their own axis.

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