A firm and reliable quick dismounting nozzle reamer rod device

Abstract

The utility model relates to converter tapping hole reaming equipment technical field, and disclose a kind of firm reliable quick dismounting tapping hole reaming drill pipe device, including drill pipe, mounting plate, connecting pin shaft and drill bit.Drill pipe upper surface is equipped with intermediate connecting piece, and its upper side has old connection seat, mounting plate is equipped with the both sides of intermediate connecting piece upper surface, old connection seat bottom mounting seat is inserted between mounting plate, the both sides of mounting plate and mounting seat surface are provided with pin hole, connecting pin shaft is arranged in hole, and its tail end upper surface is provided with threaded hole, the threaded rod of the positioning plate on the surface of intermediate connecting piece is screwed and is screwed in the positioning plate below, can improve the stability of connecting pin shaft, prevent falling off, facilitate dismounting, avoid drill pipe fracture in tapping hole to affect production rhythm.Drill bit is arranged at the bottom end of drill pipe and is partially sleeved on the outer periphery of drill pipe, and the upper and lower parts of the connecting part of drill bit and drill pipe are inserted with latch, so that drill bit can better withstand reaction force and torque in reaming operation, and the risk of fracture is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of converter taphole enlargement equipment, specifically a robust and reliable quick-assembly and disassembly device for taphole enlargement drill rods. Background Technology

[0002] The taphole reaming drill rod device is a special tool used for the maintenance of the taphole of steelmaking converters or blast furnaces. Its core design usually uses high-strength alloy steel or special materials to manufacture the drill bit body and connecting parts, and achieves efficient hole reaming through a spiked bar or spiral structure.

[0003] The taphole of the converter often becomes increasingly narrow due to slag adhesion, affecting the tapping process. Therefore, a reamer is needed to clean the taphole. Previously, the taphole reamer rods used in production were supplied as finished products by an external supplier. However, this equipment has several problems, with disassembly and assembly difficulties being the most critical issue. During use, the reamer rods frequently break due to impact forces, becoming stuck inside the taphole and difficult to remove. Prolonged cleaning time disrupts the converter's production rhythm, directly impacting company profits. Furthermore, the connection structure between the drill bit and the drill rod is crucial during drilling operations. Traditional connection methods may lack sufficient strength. During reaming, the drill bit is susceptible to reaction forces from the material and torque transmitted by the drill rod. Insufficient connection strength can lead to uneven stress on the drill bit or loosening of the connection, increasing the risk of drill bit breakage and affecting the stability and reliability of the drill bit's operation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a robust and reliable device for quickly disassembling and assembling steel taphole reaming drill rods. This solves the problem mentioned in the background art, where reaming drill rods often break due to impact during use, becoming stuck inside the taphole and difficult to remove. Prolonged removal disrupts the converter's production rhythm, directly impacting company profits. Furthermore, during reaming operations, the drill bit is susceptible to reaction forces from materials and torque transmitted by the drill rod. Insufficient connection strength can lead to uneven stress on the drill bit or loose connections, increasing the risk of drill bit breakage and affecting the stability and reliability of the drill bit's operation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a robust and reliable quick-assembly and disassembly device for reaming drill rods at the steel outlet, comprising:

[0008] A drill rod, wherein an intermediate connector is mounted on the upper surface of the drill rod, and a reused connector is provided above the intermediate connector;

[0009] Mounting plates are provided on both sides of the upper surface of the intermediate connector. The bottom of the reused connector is equipped with a mounting base, which is inserted between the mounting plates. Pin holes are provided on both sides of the surfaces of the mounting plates and the mounting base.

[0010] A connecting pin is provided inside the pin hole. The upper surface of the tail end of the connecting pin is provided with threaded holes. Positioning plates are installed on the upper and lower parts of the surface of the intermediate connector. Threaded rods are screwed onto the upper surface of the positioning plates. The threaded rods are screwed into the positioning plates below through threaded holes.

[0011] A drill bit is located at the bottom end of the drill rod. The upper part of the drill bit is sleeved on the outer periphery of the drill rod. Pins are inserted at both the upper and lower parts of the connection between the drill bit and the drill rod.

[0012] Preferably, the bottom of the reused connector is equipped with a plug-in block, and the upper surface of the intermediate connector is provided with a plug-in groove. The plug-in block is inserted into the plug-in groove, which can facilitate the connection between the intermediate connector and the reused connector and improve the accuracy of the connection between the intermediate connector and the reused connector.

[0013] Preferably, a square block is installed at the bottom of the drill rod, and a square groove is opened at the bottom of the inner cavity of the drill bit. The square block is inserted into the square groove, so that the drill bit will rotate synchronously with the drill rod.

[0014] Preferably, a connector rod is installed on the lower surface of the square block, and an insertion interface is provided at the bottom of the inner cavity of the square groove corresponding to the connector rod. When the connector rod is inserted into the insertion interface, the square block can be completely submerged in the square groove, which improves the connection stability between the drill rod and the drill bit.

[0015] Preferably, the tail end surface of each pin is provided with a threaded groove, and a locking nut is screwed into each threaded groove of the pin, so that the pin is not easy to fall off the surface of the drill rod and the drill bit.

[0016] Beneficial effects

[0017] Compared with the prior art, this utility model provides a robust and reliable quick-assembly and disassembly device for reaming drill rods at the steel outlet, which has the following beneficial effects:

[0018] 1. This robust and reliable quick-assembly and disassembly drill rod device for expanding the tap hole utilizes an intermediate connector and a reused connector on the drill rod. The intermediate connector's upper surface mounting plates on both sides interlock with the bottom mounting base of the reused connector. A connecting pin is inserted into the mounting plate and base surfaces to connect the intermediate connector to the reused connector. Simultaneously, a threaded hole at the end of the connecting pin, along with a threaded rod screwed onto the positioning plate of the intermediate connector, passes through the threaded hole and is screwed into the lower positioning plate. This enhances the stability of the connecting pin and prevents it from falling off. This structure makes the assembly and disassembly of the drill rod extremely convenient. During tap hole expansion operations, even under impact, the drill rod will not break inside the tap hole due to unstable structural connections, avoiding the situation where the drill rod becomes stuck inside the tap hole and is difficult to remove. This reduces cleaning time, does not affect the converter's production rhythm, and ultimately improves company efficiency.

[0019] 2. This robust and reliable quick-assembly and disassembly steel-outlet reaming drill rod device features a drill bit positioned at the bottom of the drill rod, with its upper part fitted onto the outer circumference of the drill rod. Pins are inserted at both the upper and lower parts of the connection between the drill bit and the drill rod. This structure enhances the connection strength between the drill bit and the drill rod through the fixing effect of the pins, allowing the drill bit to better withstand the reaction force from the material and the torque transmitted by the drill rod during reaming operations. This effectively reduces the risk of drill bit breakage due to uneven stress or loose connection, ensuring the stability and reliability of the drill bit's operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the intermediate connecting component of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the existing connecting seat of this utility model;

[0023] Figure 4 This is a schematic diagram of the connecting pin structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the drill rod structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the drill bit of this utility model.

[0026] In the diagram: 1. Drill rod; 2. Intermediate connector; 3. Repurposed connector; 4. Mounting plate; 5. Mounting base; 6. Pin hole; 7. Connecting pin; 8. Threaded hole; 9. Positioning plate; 10. Threaded rod; 11. Drill bit; 12. Pin; 13. Insert block; 14. Insert groove; 15. Square block; 16. Square slot; 17. Insert rod; 18. Insertion interface; 19. Locking nut. Detailed Implementation

[0027] 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.

[0028] This utility model provides a technical solution: a robust and reliable device for quickly assembling and disassembling steel outlet reaming drill rods. Please refer to [link / reference]. Figure 1 It includes a drill rod 1, an intermediate connector 2 is installed on the upper surface of the drill rod 1, and a reused connector 3 is provided above the intermediate connector 2;

[0029] Please see Figure 2 Mounting plate 4 is located on both sides of the upper surface of the intermediate connector 2. Please refer to [link / reference]. Figure 3 The bottom of the reused connector 3 is equipped with a mounting base 5, which is inserted between the mounting plates 4. Pin holes 6 are opened on both sides of the surface of the mounting plate 4 and the mounting base 5.

[0030] Please see Figure 1 Connecting pin 7 is located inside pin hole 6. Please refer to [link / reference]. Figure 4 The upper surface of the tail end of the connecting pin 7 is provided with threaded holes 8. Please refer to [link / reference]. Figure 2 Positioning plates 9 are installed on both the upper and lower parts of the surface of the intermediate connector 2. Threaded rods 10 are screwed onto the upper surface of the positioning plates 9. The threaded rods 10 pass through the threaded holes 8 and are screwed into the positioning plates 9 below.

[0031] By setting an intermediate connector 2 and a reused connecting seat 3 on the drill rod 1, and using the insertion and cooperation of the mounting plates 4 on both sides of the upper surface of the intermediate connector 2 and the bottom mounting seat 5 of the reused connecting seat 3, and by opening pin holes 6 on the surfaces of the mounting plates 4 and the mounting seat 5 and inserting connecting pins 7, the intermediate connector 2 and the reused connecting seat 3 can be connected. At the same time, a threaded hole 8 is opened at the tail end of the connecting pin 7, and the threaded rod 10 screwed on the positioning plate 9 on the surface of the intermediate connector 2 passes through the threaded hole 8 and is screwed into the lower positioning plate 9, which can improve the stability of the connecting pin 7 and prevent the connecting pin 7 from falling off. This structure makes the assembly and disassembly of the drill rod 1 device extremely convenient. During the tap hole enlargement operation, even if it is subjected to impact force, the drill rod 1 will not break inside the tap hole due to unstable structural connection, avoiding the situation where the drill rod 1 is blocked inside the tap hole and difficult to clean out, thereby reducing cleaning time, not affecting the production rhythm of the converter, and thus improving the company's efficiency.

[0032] Please see Figure 1 Drill bit 11 is located at the bottom end of drill rod 1. The upper part of drill bit 11 is sleeved on the outer periphery of drill rod 1. Pins 12 are inserted at both the upper and lower parts of the connection between drill bit 11 and drill rod 1.

[0033] The drill bit 11 is located at the bottom end of the drill rod 1, and its upper part is sleeved on the outer periphery of the drill rod 1. Pins 12 are inserted at both the upper and lower parts of the connection between the drill bit 11 and the drill rod 1. This structure enhances the connection strength between the drill bit 11 and the drill rod 1 through the fixing effect of the pins 12. This allows the drill bit 11 to better withstand the reaction force from the material and the torque transmitted by the drill rod 1 during the hole reaming operation, thereby effectively reducing the risk of the drill bit 11 breaking due to uneven force or loose connection, and ensuring the stability and reliability of the drill bit 11 in operation.

[0034] When the converter finishes tapping and there is too much slag at the tapping opening that cannot meet production needs, a reaming drill rod 1 is used to clean the slag at the tapping opening. The reaming drill rod 1 device needs to be assembled in advance by the maintenance worker according to the steps of the above technical plan to enlarge the tapping opening. The optimized and modified drill rod 1 is firm and reliable. The service life of the drill rod 1 has been increased from the original 4-5 times / piece to 20 times / piece. In addition, the modified structure is easy to disassemble and assemble. After a period of trial use, the broken part of the modified drill rod 1 is the head, which will not cause the tapping opening to be blocked by the drill rod 1 and affect the production rhythm. In addition, the drill rod 1 is easy to disassemble and assemble. Only the two connecting pins 7 need to be removed to replace the new drill rod 1.

[0035] Please see Figure 3 The bottom of the reused connector 3 is equipped with a plug-in block 13, please refer to [link / reference]. Figure 2The upper surface of the intermediate connector 2 is provided with a plug groove 14. The plug block 13 is inserted into the plug groove 14, which can facilitate the connection between the intermediate connector 2 and the reused connector 3 and improve the accuracy of the connection between the intermediate connector 2 and the reused connector 3.

[0036] Please see Figure 5 A square block 15 is installed at the bottom end of drill pipe 1. Please refer to [link / reference]. Figure 6 A square groove 16 is provided at the bottom of the inner cavity of the drill bit 11. A square block 15 is inserted into the square groove 16, so that the drill bit 11 will rotate synchronously with the drill rod 1.

[0037] Please see Figure 5 A plug-in rod 17 is mounted on the lower surface of the square block 15. Please refer to [link / reference]. Figure 6 The bottom of the inner cavity of the square groove 16 is provided with an insertion interface 18 corresponding to the insertion rod 17. When the insertion rod 17 is inserted into the insertion interface 18, the square block 15 can be completely submerged in the square groove 16, which improves the connection stability between the drill rod 1 and the drill bit 11.

[0038] Please see Figure 5 The tail end surface of the pin 12 is provided with threaded grooves, and a locking nut 19 is screwed into the threaded groove of the pin 12. The locking nut 19 makes it difficult for the pin 12 to fall off the surface of the drill rod 1 and the drill bit 11.

[0039] In operation, this solution works as follows: First, the insertion block 13 at the bottom of the reused connector 3 is inserted into the insertion groove 14 on the upper surface of the intermediate connector 2 to achieve initial docking. Then, the mounting base 5 at the bottom of the reused connector 3 is inserted between the mounting plates 4 on both sides of the upper surface of the intermediate connector 2. The mounting plates 4 are connected to the reused connector 3. The pin hole 6 on the surface of the mounting base 5 is inserted into the connecting pin 7, which allows the intermediate connector 2 to be screwed onto the threaded rod 10 screwed onto the positioning plate 9 on the surface of the intermediate connector 2 through the threaded hole 8 at the tail end of the connecting pin 7. The connection is completed in the square positioning plate 9; the square block 15 at the bottom of the drill rod 1 is inserted into the square groove 16 at the bottom of the inner cavity of the drill bit 11, and at the same time, the plug rod 17 on the lower surface of the square block 15 is inserted into the plug interface 18 at the bottom of the inner cavity of the square groove 16. The pins 12 are inserted at the upper and lower parts of the connection between the drill bit 11 and the drill rod 1. Finally, the locking nut 19 is screwed into the threaded groove at the end of the pin 12 to prevent the pin 12 from falling off. The assembly of the device is now complete, and the steel outlet hole enlarging operation can be performed. When disassembling, the above steps are reversed to quickly disassemble the device.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A robust and reliable device for quickly assembling and disassembling steel outlet reaming drill rods, characterized in that, include: Drill rod (1), an intermediate connector (2) is installed on the upper surface of the drill rod (1), and a reused connector (3) is provided above the intermediate connector (2); Mounting plate (4) is set on both sides of the upper surface of intermediate connector (2). Mounting seat (5) is installed at the bottom of the reused connector (3). Mounting seat (5) is inserted between mounting plates (4). Pin holes (6) are opened on both sides of the surface of mounting plate (4) and mounting seat (5). A connecting pin (7) is set inside the pin hole (6). The upper surface of the tail end of the connecting pin (7) is provided with threaded holes (8). The upper and lower parts of the surface of the intermediate connector (2) are equipped with positioning plates (9). The upper surface of the positioning plate (9) is screwed with threaded rods (10). The threaded rods (10) are screwed into the positioning plate (9) below through the threaded holes (8). A drill bit (11) is located at the bottom end of the drill rod (1). The upper part of the drill bit (11) is sleeved on the outer periphery of the drill rod (1). Pins (12) are inserted at both the upper and lower parts of the connection between the drill bit (11) and the drill rod (1).

2. The robust and reliable quick-assembly and disassembly device for reaming the steel outlet as described in claim 1, characterized in that: The bottom of the reused connector (3) is equipped with a plug block (13), and the upper surface of the intermediate connector (2) is provided with a plug groove (14).

3. The robust and reliable quick-assembly and disassembly device for reaming the steel outlet as described in claim 1, characterized in that: A square block (15) is installed at the bottom of the drill rod (1), and a square groove (16) is opened at the bottom of the inner cavity of the drill bit (11).

4. The robust and reliable quick-assembly and disassembly device for reaming the steel outlet as described in claim 3, characterized in that: A plug rod (17) is installed on the lower surface of the square block (15), and a plug interface (18) is opened at the bottom of the inner cavity of the square groove (16) corresponding to the plug rod (17).

5. The robust and reliable quick-assembly and disassembly device for reaming the steel outlet as described in claim 1, characterized in that: The tail end surface of each pin (12) is provided with a threaded groove, and a locking nut (19) is screwed into each threaded groove of the pin (12).

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