Quick mounting structure and quick mounting method for auger stem

Abstract

The invention discloses a quick mounting structure and a quick mounting method of a spiral drill rod in the technical field of spiral drill rods. The quick mounting structure comprises a drill rod, a top end column is fixedly connected to the top of the drill rod, and a connecting screw rod is arranged at the top of the drill rod. Through the designed quick-assembly structure, the drill rod can be quickly connected with the connecting screw rod and the connecting column, complex thread rotation or welding operation is not needed, the connecting process is simplified, and the connecting efficiency is improved. The limiting rod, the plug pin, the limiting block and the limiting groove are matched, so that the drill rod is effectively prevented from loosening in the drilling process, and the stability and the safety of connection are ensured. During connection, expandability can be enhanced according to a connection mode, a proper number of connection screws are allowed to be selected for connection according to needs so as to adapt to drilling requirements of different depths, drill rods of various lengths do not need to be prepared, and cost and storage difficulty are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of spiral drill rods, in particular to a spiral drill rod quick-installation structure and a quick-installation method. Background Art

[0002] The drill pipe is a steel pipe with a thread at the tail end, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the drilling well. The purpose of the drill pipe is to transport the drilling mud to the drill bit and raise, lower or rotate the bottom hole device together with the drill bit. The drill pipe must be able to withstand huge internal and external pressure, twisting, bending and vibration. Among them, the geological spiral drill pipe is based on the high torque performance of the geological drill pipe, with single or double spiral blades, and is processed and welded by prestressed winding process. It is the first choice for coal mines and drilling projects, suitable for deep hole drilling construction under medium-hard geological conditions or above, especially suitable for deep hole drilling of soft coal seams and coal-like seams with poor water and slag removal effects. The geological spiral drill pipe provides a guarantee for efficient deep hole drilling in mines. The connection methods of the geological spiral drill pipe are divided into threaded connection type, square connection type and hexagonal connection type, among which the hexagonal connection is the main one.

[0003] In the existing field of spiral drill rod technology, the connection of drill rods usually relies on traditional threaded connection or welding. These connection methods are not only cumbersome and time-consuming, but also easily lead to thread damage or loose welding points during frequent disassembly and assembly, thus affecting the connection stability and service life of the drill rod. In addition, the traditional connection method lacks flexibility and scalability when dealing with drilling requirements of different depths. It is usually necessary to prepare drill rods of various lengths, which increases costs and storage difficulties. Summary of the invention

[0004] The purpose of the present invention is to provide a quick-installation structure and a quick-installation method for a spiral drill rod to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a spiral drill rod quick-assembly structure, comprising a drill rod, the top of the drill rod is fixedly connected with a top column, the top of the drill rod is provided with a connecting screw, the bottom of the connecting screw is provided with an inner hole connected with the top column, the top column is connected with the inner hole of the bottom of the connecting screw by plugging, the connecting screw and the top outer wall of the drill rod are both fixedly connected with an external connecting thread, the top of the connecting screw is provided with a connecting column, the top of the connecting screw is fixedly connected with the top column, the bottom of the connecting column is provided with a bottom connecting cavity, the inner diameter size of the bottom connecting cavity matches the outer diameter size of the top column, the top column is connected with the bottom connecting cavity by plugging, the bottom outer wall of the connecting column is sleeved with a connecting ring, the bottom inner wall of the connecting ring is provided with an inner connecting cavity, the inner wall of the inner connecting cavity is provided with an inner connecting thread that can be meshed with the external connecting thread, the inner diameter size of the inner connecting cavity is larger than the outer diameter size of the connecting screw, and the inner connecting thread is meshed with the external connecting thread.

[0006] As a further solution of the present invention: a limiting rod is inserted through the outer wall of the bottom end of the connecting screw, and a latch is inserted at one end of the limiting rod.

[0007] As a further solution of the present invention: the side wall of the top column and the side wall of the top column that match the position of the limiting rod are both penetrated with a through hole, and the limiting rod passes through one end of the connecting screw and is inserted and connected with the through hole.

[0008] As a further solution of the present invention: the outer wall of the bottom end of the connecting column is fixedly connected to a limiting ring, the outer diameter of the limiting ring is smaller than the inner diameter of the inner connecting cavity, and the outer diameter of the limiting ring is larger than the socket hole at the top of the connecting ring.

[0009] As a further solution of the present invention: a plurality of installation grooves are evenly opened on the top of the limit ring, the inner walls of the plurality of installation grooves are fixedly connected with return springs, the tops of the plurality of return springs are fixedly connected with limit blocks, and the bottoms of the plurality of limit blocks are movably connected with the tops of the installation grooves matching their positions.

[0010] As a further solution of the present invention: a plurality of limiting grooves are evenly formed on the inner wall of the top end of the inner connecting cavity that matches the position of the limiting block, and the inner diameters of the plurality of limiting grooves match the outer diameter of the limiting block.

[0011] As a further solution of the present invention: a drill bit is fixedly connected to the bottom of the drill rod, and spiral blades are fixedly connected to the outer walls of the drill rod and the connecting screw, and the two spiral blades have the same pitch and direction.

[0012] The spiral drill rod quick assembly method comprises the above-mentioned spiral drill rod quick assembly structure and the following steps:

[0013] S1: According to the depth of the drilling hole, select a suitable number of connecting screws, and plug the top column on the drill rod with the bottom end of the connecting screw. When plugging, first pull out the limit rod, and when the top column is inserted into the bottom end of the connecting screw, insert the limit rod into the through hole, and then insert the pin for limiting;

[0014] S2: Place the topmost connecting screw to the bottom of the connecting column, swing the connecting ring to the top of the connecting column, and plug the top column into the bottom connecting cavity;

[0015] S3: After the top column is plugged in, the connecting ring is moved to one end close to the connecting screw and rotated, and the threaded connection between the connecting ring and the connecting screw is completed through the meshing connection of the inner connecting thread and the outer connecting thread;

[0016] S4: When the connecting ring rotates to the bottom end, the limiting block is engaged with the limiting groove matching the position, and the rotation direction of the connecting ring is limited to ensure the connection stability in subsequent work;

[0017] S5: When there is no need to connect the screw rod, the drill pipe can be directly connected to the connecting column. When connecting, just plug the top column into the bottom connecting cavity, and then rotate the connecting ring to engage the external connecting thread and the internal connecting thread to quickly connect the connecting column and the drill pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, the connection between the drill rod and the connecting screw and the connecting column can be quickly completed through the designed quick-install structure, without the need for complicated thread rotation or welding operations, simplifying the connection process and improving the connection efficiency. While ensuring the connection effect, the connection stability is improved: the use of a limit rod, a latch, and the cooperation of a limit block and a limit groove effectively prevents the drill rod from loosening during the drilling process, ensuring the stability and safety of the connection. When making a connection, the scalability can be enhanced according to the connection method. The present invention allows the selection of an appropriate number of connecting screws for connection as needed to meet the needs of drilling holes of different depths. There is no need to prepare drill rods of various lengths, reducing costs and storage difficulties. At the same time, the device as a whole is easy to maintain, and the quick-install structure makes the disassembly and assembly of the drill rod easier, which is convenient for maintenance and replacement, and extends the service life of the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the spiral drill rod quick assembly structure and quick assembly method of the present invention;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the spiral drill rod quick assembly structure and quick assembly method of the present invention;

[0021] Figure 3 The invention relates to a quick-installation structure and a quick-installation method for a spiral drill rod Figure 2A schematic diagram of the structure enlargement at the center A;

[0022] Figure 4 It is an enlarged schematic diagram of the cross-sectional structure of the connecting column in the spiral drill rod quick assembly structure and quick assembly method of the present invention;

[0023] Figure 5 The invention relates to a quick-installation structure and a quick-installation method for a spiral drill rod Figure 4 A schematic diagram of the structure enlarged at B in the middle;

[0024] Figure 6 The invention relates to a quick-installation structure and a quick-installation method for a spiral drill rod Figure 4 Enlarged schematic diagram of the structure at C in the middle.

[0025] In the figure: 1. connecting column; 11. bottom connecting cavity; 12. limiting ring; 13. mounting groove; 14. reset spring; 15. limiting block; 2. connecting ring; 21. inner connecting cavity; 22. limiting groove; 23. inner connecting thread; 3. connecting screw; 31. top column; 32. limiting rod; 33. latch; 4. drill rod; 41. top column; 42. through hole; 5. drill bit; 6. spiral fan blade; 7. outer connecting thread. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Embodiment 1:

[0031] Application scenario: In mineral exploration, spiral drill rods are needed to drill deep soil or rock.

[0032] Implementation process:

[0033] According to the exploration depth and geological conditions, the appropriate number and length of connecting screws 3 and drill rods 4 are selected.

[0034] The top column 41 of the drill rod 4 is plugged into the bottom inner hole of the connecting screw rod 3 and fixed using a limiting rod 32 and a latch pin 33 .

[0035] The connected drill pipe and connecting screw rod combination are placed in sequence at the bottom end of the connecting column 1, and the outer connecting thread 7 and the inner connecting thread 23 are meshed and connected by rotating the connecting ring 2.

[0036] During the drilling process, the number of connecting screws 3 and drill rods 4 is increased or decreased as needed to adapt to different drilling depths.

[0037] After drilling is completed, the drill rod and the connecting screw can be easily disassembled by rotating the connecting ring 2 for easy use next time.

[0038] Implementation effect: This embodiment can quickly and conveniently connect and disassemble the drill rod, improve drilling efficiency and reduce operation difficulty.

[0039] Embodiment 2:

[0040] Application scenario: In the construction industry, auger rods are used for ground treatment or foundation pit support.

[0041] Implementation process:

[0042] According to the requirements of foundation treatment or foundation pit support, select a drill rod 4 of appropriate diameter and length.

[0043] The drill rod 4 is plugged into the connecting screw rod 3 and fixed with a limiting rod 32 and a latch pin 33 to ensure the stability of the connection.

[0044] The connected drill pipe and connecting screw are combined and placed at the bottom end of the connecting column 1 , and the connecting ring 2 is rotated to achieve meshing connection with the external connecting thread 7 and the internal connecting thread 23 .

[0045] Start drilling equipment and carry out foundation treatment or foundation pit support operations.

[0046] After the operation is completed, the drill pipe and connecting screw can be easily disassembled by rotating the connecting ring 2 for cleaning and maintenance.

[0047] Implementation effect: This embodiment can provide a stable connection effect and ensure the safety and reliability of foundation treatment or foundation pit support operations.

[0048] Embodiment three:

[0049] Application scenario: In environmental governance, spiral drilling rods are used to repair soil in groundwater contaminated areas.

[0050] Implementation process:

[0051] According to the depth and scope of soil remediation, select the appropriate number and length of connecting screws 3 and drill rods 4.

[0052] The drill rod 4 is plugged into the connecting screw rod 3 and fixed with a limit rod 32 and a latch pin 33 to ensure the firmness of the connection.

[0053] The connected drill pipe and connecting screw are combined and placed at the bottom end of the connecting column 1 , and the connecting ring 2 is rotated to achieve meshing connection with the external connecting thread 7 and the internal connecting thread 23 .

[0054] During the drilling process, the soil in the groundwater contaminated area is repaired by injecting repair agents or using other repair technologies.

[0055] After repair, the drill pipe and connecting screw can be easily disassembled by rotating the connecting ring 2 for cleaning and maintenance.

[0056] Implementation effect: This embodiment can quickly and accurately connect and disassemble the drill rod, improve the efficiency and quality of soil remediation, and reduce the difficulty and cost of operation.

[0057] In summary: please refer to Figures 1 to 6In an embodiment of the present invention, a spiral drill rod quick-installation structure includes a drill rod 4, a top column 41 is fixedly connected to the top of the drill rod 4, a connecting screw 3 is arranged on the top of the drill rod 4, and an inner hole is provided at the bottom of the connecting screw 3 to be plugged and connected with the top column 41. The top column 41 is plugged and connected with the inner hole at the bottom of the connecting screw 3, so that the drill rod 4 and the connecting screw 3 are preliminarily connected.

[0058] The outer walls of the top ends of the connecting screw rod 3 and the drill rod 4 are fixedly connected with external connecting threads 7 for meshing connection with the internal connecting threads 23 of the connecting ring 2. A connecting column 1 is provided at the top of the connecting screw rod 3, a top column 31 is fixedly connected to the top of the connecting screw rod 3, a bottom connecting cavity 11 is provided at the bottom of the connecting column 1, the inner diameter of the bottom connecting cavity 11 matches the outer diameter of the top column 31, the top column 31 is plugged and connected with the bottom connecting cavity 11, and the preliminary connection between the connecting screw rod 3 and the connecting column 1 is realized.

[0059] The outer wall of the bottom end of the connecting column 1 is sleeved with a connecting ring 2, and the inner wall of the bottom end of the connecting ring 2 is provided with an inner connecting cavity 21, and the inner wall of the inner connecting cavity 21 is provided with an inner connecting thread 23 that can be meshed and connected with the outer connecting thread 7. The inner diameter of the inner connecting cavity 21 is larger than the outer diameter of the connecting screw 3, allowing the connecting ring 2 to rotate on the connecting screw 3 or the drill rod 4 to achieve threaded connection.

[0060] In addition, a limit rod 32 is inserted through the outer wall of the bottom end of the connecting screw 3, and a latch 33 is inserted at one end of the limit rod 32. The side wall of the top column 41 that matches the position of the limit rod 32 and the side wall of the top column 31 are penetrated with a through hole 42, and the limit rod 32 passes through one end of the connecting screw 3 and is inserted and connected with the through hole 42, which is used to fix the connection between the drill rod 4 and the connecting screw 3 and the connecting screw 3 and the connecting column 1.

[0061] The outer wall at the bottom end of the connecting column 1 is also fixedly connected to a limit ring 12. The outer diameter of the limit ring 12 is smaller than the inner diameter of the inner connecting cavity 21, but larger than the sleeve hole at the top of the connecting ring 2, and is used to limit the downward movement of the connecting ring 2. A plurality of mounting grooves 13 are evenly arranged on the top of the limit ring 12, and the inner walls of the mounting grooves 13 are fixedly connected to reset springs 14, and the tops of the reset springs 14 are fixedly connected to limit blocks 15. A plurality of limit grooves 22 are evenly arranged on the inner wall at the top end of the inner connecting cavity 21 that matches the position of the limit block 15. When the connecting ring 2 rotates to the bottom end, the limit block 15 is engaged with the limit groove 22 to limit the rotation direction of the connecting ring 2.

[0062] The bottom of the drill rod 4 is also fixedly connected to a drill bit 5, and the outer walls of the drill rod 4 and the connecting screw 3 are fixedly connected to spiral blades 6. The two spiral blades 6 have the same pitch and direction and are used to provide additional propulsion force and chip removal capability during the drilling process.

[0063] The spiral drill rod quick assembly method of the present invention comprises the following steps:

[0064] S1: According to the depth of the drilling hole, select a suitable number of connecting screws 3, and plug the top column 41 on the drilling rod 4 with the bottom end of the connecting screw 3. When plugging, first pull out the limiting rod 32, and when the top column 41 is inserted into the bottom end of the connecting screw 3, insert the limiting rod 32 into the through hole 42, and then insert the pin 33 for limiting.

[0065] S2: Place the topmost connecting screw 3 to the bottom end of the connecting column 1, move the connecting ring 2 to the top end of the connecting column 1, and plug the top column 31 into the bottom connecting cavity 11.

[0066] S3: After the top column 31 is inserted, the connecting ring 2 is moved to the end close to the connecting screw 3 and rotated. The threaded connection between the connecting ring 2 and the connecting screw 3 is completed through the meshing connection of the internal connecting thread 23 and the external connecting thread 7.

[0067] S4: When the connection ring 2 rotates to the bottom end, the limiting block 15 is engaged with the limiting groove 22 of matching position to limit the rotation direction of the connection ring 2, thereby ensuring the connection stability during subsequent work.

[0068] S5: When the screw rod 3 is not needed, the drill rod 4 can be directly connected to the connecting column 1. When connecting, it is only necessary to plug the top column 41 into the bottom connecting cavity 11, and then the connecting ring 2 is rotated to engage the external connecting thread 7 and the internal connecting thread 23 to quickly connect the connecting column 1 and the drill rod 4.

[0069] Through the quick-installation structure and quick-installation method, the present invention realizes the rapid and stable connection of the spiral drill rod, thereby improving the drilling efficiency and service life.

[0070] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0071] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A spiral drill rod quick assembly structure, comprising a drill rod (4), characterized in that: The top of the drill rod (4) is fixedly connected to a top column (41), the top of the drill rod (4) is provided with a connecting screw (3), the bottom of the connecting screw (3) is provided with an inner hole connected to the top column (41), the top column (41) is connected to the inner hole at the bottom of the connecting screw (3), the top outer walls of the connecting screw (3) and the drill rod (4) are fixedly connected to an external connecting thread (7), the top of the connecting screw (3) is provided with a connecting column (1), the top of the connecting screw (3) is fixedly connected to a top column (31), the bottom of the connecting column (1) is provided with a bottom end connecting cavity ( 11), the inner diameter of the bottom connecting cavity (11) matches the outer diameter of the top column (31), the top column (31) and the bottom connecting cavity (11) are plug-connected, the bottom outer wall of the connecting column (1) is sleeved with a connecting ring (2), the bottom inner wall of the connecting ring (2) is provided with an inner connecting cavity (21), the inner wall of the inner connecting cavity (21) is provided with an inner connecting thread (23) that can be meshed with the outer connecting thread (7), the inner diameter of the inner connecting cavity (21) is larger than the outer diameter of the connecting screw (3), and the inner connecting thread (23) is meshed with the outer connecting thread (7).

2. The spiral drill rod quick assembly structure according to claim 1, characterized in that: A limiting rod (32) is inserted through the outer wall of the bottom end of the connecting screw rod (3), and a latch pin (33) is inserted at one end of the limiting rod (32).

3. The spiral drill rod quick assembly structure according to claim 2, characterized in that: The side wall of the top column (41) and the side wall of the top column (31) that match the position of the limiting rod (32) are both penetrated by a through hole (42), and the limiting rod (32) passes through one end of the connecting screw rod (3) and is inserted and connected to the through hole (42).

4. The spiral drill rod quick assembly structure according to claim 1, characterized in that: The outer wall of the bottom end of the connecting column (1) is fixedly connected to a limiting ring (12), the outer diameter of the limiting ring (12) is smaller than the inner diameter of the inner connecting cavity (21), and the outer diameter of the limiting ring (12) is larger than the sleeve hole at the top of the connecting ring (2).

5. The spiral drill rod quick assembly structure according to claim 4, characterized in that: A plurality of mounting grooves (13) are evenly arranged on the top of the limiting ring (12); the inner walls of the plurality of mounting grooves (13) are fixedly connected with return springs (14); the tops of the plurality of return springs (14) are fixedly connected with limiting blocks (15); the bottoms of the plurality of limiting blocks (15) are movably connected to the tops of the mounting grooves (13) matching their positions.

6. The spiral drill rod quick assembly structure according to claim 1, characterized in that: A plurality of limiting grooves (22) are evenly arranged on the inner wall of the top end of the inner connecting cavity (21) that matches the position of the limiting block (15), and the inner diameters of the plurality of limiting grooves (22) match the outer diameter of the limiting block (15).

7. The spiral drill rod quick assembly structure according to claim 1, characterized in that: The bottom of the drill rod (4) is fixedly connected to a drill bit (5), and the outer walls of the drill rod (4) and the connecting screw rod (3) are fixedly connected to spiral blades (6), and the two spiral blades (6) have the same pitch and direction.

8. A method for quickly assembling a spiral drill rod, comprising the spiral drill rod quick assembly structure according to claims 1 to 7 and the following steps: S1: According to the depth of the drilling hole, select a suitable number of connecting screws (3), and plug the top column (41) on the drilling rod (4) with the bottom end of the connecting screw (3). When plugging, first pull out the limiting rod (32), and when the top column (41) is inserted into the bottom end of the connecting screw (3), insert the limiting rod (32) into the through hole (42), and then insert the pin (33) to limit the position; S2: placing the topmost connecting screw (3) to the bottom end of the connecting column (1), swinging the connecting ring (2) to the top end of the connecting column (1), and plugging the top column (31) into the bottom connecting cavity (11); S3: After the top column (31) is plugged in, the connecting ring (2) is moved to one end close to the connecting screw (3) and rotated, and the threaded connection between the connecting ring (2) and the connecting screw (3) is completed through the meshing connection of the internal connecting thread (23) and the external connecting thread (7); S4: When the connecting ring (2) rotates to the bottom end, the limiting block (15) is engaged with the limiting groove (22) of matching position to limit the rotation direction of the connecting ring (2) and ensure the connection stability during subsequent work; S5: When the connecting screw (3) is not needed, the drill rod (4) can be directly connected to the connecting column (1). When connecting, it is only necessary to plug the top column (1) into the bottom connecting cavity (11), and then the connecting ring (2) is rotated to engage the external connecting thread (7) and the internal connecting thread (23) to quickly connect the connecting column (1) and the drill rod (4).

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