Spiral tapping hole reamer bit

Abstract

The utility model discloses a spiral tapping hole reamer bit which comprises a bit body, a cooling cavity is formed in the bit body, a drill rod is fixedly connected to one end of the cooling cavity, a cooling channel is formed in the drill rod, the tail end of the cooling channel is connected with the cooling cavity in a penetrating mode, and water outlet holes are formed in the surface of the bit body. An anti-blocking mechanism is arranged in the water outlet hole, and a transmission discharging mechanism is arranged in the drill bit body and the cooling cavity. The drill bit has the advantages that when the drill bit body drills, an adjusting ring in the transmission discharging mechanism makes friction contact with a drilling hole, after a traditional discharging mechanism rotates in a cooling cavity, the anti-blocking mechanism is extruded, then a pushing plate in the anti-blocking mechanism continuously moves in a water outlet hole, residues entering the water outlet hole are continuously pushed out, and the drilling efficiency is improved. The water outlet holes are effectively prevented from being blocked, cooling liquid is continuously discharged, and the drill bit body is efficiently cooled during drilling.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reamer bit, specifically relates to a spiral taphole reamer bit. BACKGROUND

[0002] The taphole of a steel converter is a key component connecting the converter with the external environment and plays a vital role in the steelmaking process. In order to ensure the smoothness and safety of the tapping process, the taphole needs to be replaced regularly to meet different tapping process requirements. The traditional taphole replacement method mainly involves removing the old taphole and installing a new one. During this process, a reamer bit is used to remove the material of the old taphole, preparing for the installation of the new taphole through drilling and reaming operations.

[0003] However, during the drilling process, the reamer bit generates a large amount of heat due to the high-speed friction between the bit and the steel material. This heat not only accelerates the wear of the bit, reducing its service life, but also can affect the quality of the drilling and even cause the bit to be damaged. To overcome these problems, some bits in the prior art are designed with internal cooling channels, which inject cooling liquid into these channels to cool and lubricate the bit, thereby prolonging the service life of the bit and improving the drilling quality. Although this method improves the working conditions of the bit to some extent, in actual application, the residue generated during the drilling process easily enters the water outlet hole of the cooling channel, causing blockage. This not only hinders the effective discharge of the cooling liquid, but also significantly reduces the cooling efficiency, still affecting the performance and life of the bit. SUMMARY

[0004] To overcome the above technical problems existing in the prior art, the utility model provides a spiral taphole reamer bit.

[0005] Therefore, the utility model adopts the specific technical scheme as follows:

[0006] A spiral taphole reamer bit, comprising a bit body, a cooling cavity is opened in the interior of the bit body, a drill rod is fixedly connected at one end of the cooling cavity, a cooling channel is opened in the interior of the drill rod, the end of the cooling channel is connected with the cooling cavity, a water outlet hole is opened on the surface of the bit body, a anti-blocking mechanism is arranged in the interior of the water outlet hole, a transmission and discharge mechanism is arranged in the interior of the bit body and the cooling cavity.

[0007] Further, to prevent the water outlet hole from being blocked by the residue generated during drilling, the anti-blocking mechanism comprises a positioning ring fixedly connected to one side of the inner wall of the water outlet hole, an extension spring one fixedly connected to one side of the positioning ring, a bearing plate fixedly connected to one end of the extension spring one, a transmission rod fixedly connected to one side of the bearing plate, and a push plate fixedly connected to the end of the transmission rod.

[0008] Further, in order to realize the extrusion of the bearing plate, one end of the water outlet hole is provided with a contraction groove, a extrusion plate is rotatably installed in the contraction groove, and the extrusion plate is fixedly connected with the contraction groove through the second elastic spring.

[0009] Further, in order to realize the power supply of the anti-blocking mechanism, the transmission discharge mechanism comprises an adjusting ring rotatably installed on the inner surface of the drill bit body, a positioning rod rotatably connected in the cooling cavity, a support rod fixedly connected between the adjusting ring and the positioning rod, and a transmission frame fixedly connected on one side of the positioning rod.

[0010] Further, in order to realize the reaming effect of the drill bit body, the surface of the drill bit body is provided with a stepped groove.

[0011] Further, in order to realize the rotation of the positioning rod in the cooling cavity, the top end of the positioning rod is rotatably connected with the drill rod.

[0012] Further, in order to realize the contraction of the bearing plate into the water outlet hole after being extruded, the bearing plate is matched with the water outlet hole.

[0013] Further, in order to realize the chip removal effect of the drill bit body during drilling, the surface of the drill bit body is provided with a spiral groove.

[0014] Further, in order to facilitate the connection of the drill rod and the transmission device during drilling, the surface of the drill rod is provided with a connecting thread.

[0015] Further, in order to increase the friction force when the surface of the adjusting ring contacts the drilled hole, the surface of the adjusting ring is provided with anti-skid lines.

[0016] The beneficial effects of the utility model are as follows: when the drill bit body drills the taphole, the adjusting ring rotatably installed in the transmission discharge mechanism contacts the drilled hole, the friction force between the two can drive the adjusting ring to rotate, the adjusting ring drives the transmission frame in the cooling cavity to rotate continuously, and then the transmission frame drives the extrusion plate to extrude the bearing plate at one end of the water outlet hole, the bearing plate drives the transmission rod and the push plate to move in the water outlet hole after being extruded, so that the push plate pushes the drilling residues into the water outlet hole, effectively prevents the water outlet hole from being blocked, the cooling liquid can be continuously discharged during drilling, the good cooling state of the drill bit is maintained, and the drilling quality and the service life of the drill bit are effectively guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description can only be some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0018] Figure 1 is a surface structure schematic view of a spiral-shaped tundish reamer according to an embodiment of the present application;

[0019] Figure 2 is a bottom view of a spiral-shaped tundish reamer according to an embodiment of the present application;

[0020] Figure 3 is an inner wall structure schematic view of a cooling cavity in a spiral-shaped tundish reamer according to an embodiment of the present application;

[0021] Figure 4 is Figure 3 is an enlarged view of position A in the above figure;

[0022] Figure 5 is an internal cross-sectional view of a reamer body in a spiral-shaped tundish reamer according to an embodiment of the present application;

[0023] Figure 6 is Figure 5 is an enlarged view of position B in the above figure.

[0024] In the figure:

[0025] 1, reamer body; 2, cooling cavity; 3, drill rod; 4, cooling channel; 5, water outlet hole; 6, anti-blocking mechanism; 601, positioning ring; 602, extension spring I; 603, bearing plate; 604, transmission rod; 605, push plate; 606, contraction groove; 607, extrusion plate; 608, extension spring II; 7, transmission and discharge mechanism; 701, adjusting ring; 702, positioning rod; 703, support rod; 704, transmission frame; 8, stepped groove; 9, spiral groove; 10, connecting thread; 11, anti-skid pattern. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] According to an embodiment of the present application, a spiral-shaped tundish reamer is provided.

[0028] Embodiment one:

[0029] As Figures 1-6As shown, according to the spiral-shaped tapping hole reamer of the utility model embodiment, the reamer body 1 is made of hard alloy material, a cooling cavity 2 is formed in the reamer body 1, a drill rod 3 is fixedly connected to one end of the cooling cavity 2, a cooling channel 4 is formed in the drill rod 3 for transmitting cooling liquid, the cooling channel 4 is connected to the cooling cavity 2, a plurality of water outlets 5 are formed on the surface of the reamer body 1 for discharging the cooling liquid to the surface of the reamer body 1 for cooling, an anti-blocking mechanism 6 is arranged in the water outlet 5 for preventing the water outlet 5 from being blocked by the residues generated during drilling, a transmission and discharge mechanism 7 is arranged in the reamer body 1 and the cooling cavity 2 for providing power to the anti-blocking mechanism 6 during drilling of the reamer body 1, the anti-blocking mechanism 6 comprises a positioning ring 601 fixedly connected to one side of the inner wall of the water outlet 5, an extension spring 602 fixedly connected to one side of the positioning ring 601, a bearing plate 603 fixedly connected to one end of the extension spring 602, a transmission rod 604 fixedly connected to one side of the bearing plate 603, a pushing plate 605 fixedly connected to one end of the transmission rod 604, a contraction groove 606 formed at one end of the water outlet 5 in the cooling cavity 2, an extrusion plate 607 rotatably arranged in the contraction groove 606, the bearing plate 603 is in sliding contact with the extrusion plate 607, an extension spring 608 is fixedly connected between the extrusion plate 607 and the contraction groove 606, the extrusion plate 607 is extruded against the bearing plate 603 through rotation, the bearing plate 603 is moved outwardly of the water outlet 5 along with the transmission rod 604 and the pushing plate 605 under pressure, thereby pushing and dredging the residues blocked at one end of the water outlet 5, and the extension spring 602 and the extension spring 608 can drive the bearing plate 603 and the extrusion plate 607 to reset when the extrusion plate 607 is not under force.

[0030] As Figures 1-6As shown, the transmission discharge mechanism 7 comprises a plurality of adjusting rings 701 rotatably mounted on the inner surface of the drill bit body 1, a positioning rod 702 rotatably connected in the cooling cavity 2, the top end of the positioning rod 702 being rotatably connected with the drill rod 3, a support rod 703 fixedly connected between each adjusting ring 701 and the positioning rod 702, a transmission frame 704 fixedly connected on one side of the positioning rod 702, the transmission frame 704 being in contact with the drilled hole when the drill bit body 1 drills, the friction between the two being able to drive the adjusting ring 701 to rotate, so that the adjusting ring 701 drives the transmission frame 704 in the cooling cavity 2 to rotate continuously, thereby causing the transmission frame 704 to extrude the anti-blocking mechanism 6; the surface of the drill bit body 1 is provided with a stepped groove 8 (containing a cutting edge) for realizing the hole expansion effect of the drill bit body 1; the bearing plate 603 cooperates with the water outlet hole 5, so that when the bearing plate 603 is extruded, it can be transmitted to the water outlet hole 5 for contraction; the surface of the drill bit body 1 is provided with a spiral groove 9 for discharging the drillings generated during drilling; the surface of the drill rod 3 is provided with a connecting thread 10 for facilitating the connection of the drill rod 3 with the transmission device during drilling; the surface of the adjusting ring 701 is provided with anti-skid lines 11 for increasing the friction when the adjusting ring 701 contacts the drilled hole on the outlet, thereby further driving the adjusting ring 701 to rotate.

[0031] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0032] In actual use, the cooling liquid is injected into the cooling cavity 2 through the cooling channel 4, the cooling liquid in the cooling cavity 2 is discharged through the water outlet hole 5, the drill bit body 1 during drilling is effectively cooled, the adjusting ring 701 rotatably mounted in the transmission discharge mechanism 7 is in contact with the inner wall of the drilled hole during the drilling of the surface of the outlet through the stepped groove 8 and the spiral groove 9 on the surface of the drill bit body 1, the friction between the two can drive the adjusting ring 701 and the drill bit body 1 to rotate relatively, so that the adjusting ring 701 drives the transmission frame 704 in the cooling cavity 2 to rotate continuously, thereby causing the transmission frame 704 to extrude the extrusion plate 607 in the cooling cavity 2, the extrusion plate 607 extrudes the bearing plate 603 at one end of the water outlet hole 5 after being pressed, the bearing plate 603 drives the transmission rod 604 and the push plate 605 to move in the water outlet hole 5 after being extruded, thereby causing the push plate 605 to push out the drilling residues entering the water outlet hole 5, effectively preventing the water outlet hole 5 from being blocked, so that the cooling liquid can be continuously discharged during drilling, and after the adjusting ring 701 contacts the drilled hole, the drill bit body 1 is continuously pushed inward, so that the stepped groove 8 of a larger diameter contacts the outside of the drilled hole and drills, realizing the hole expansion drilling of the outlet.

[0033] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spiral nozzle reamer, characterized by, The utility model provides a kind of drilling head, including drill body (1), the inside of drill body (1) is opened cooling cavity (2), one end of cooling cavity (2) is fixedly connected with drill rod (3), the inside of drill rod (3) is opened cooling channel (4), the tail end of cooling channel (4) is connected with cooling cavity (2) through, the surface of drill body (1) is opened water outlet hole (5), the inside of water outlet hole (5) is equipped with anti-blocking mechanism (6), the inside of drill body (1) and cooling cavity (2) is equipped with transmission discharge mechanism (7).

2. A spiral taphole reamer according to claim 1, wherein The anti-blocking mechanism (6) includes a positioning ring (601) fixedly connected on one side of the inner wall of the water outlet hole (5), a telescopic spring (602) fixedly connected on one side of the positioning ring (601), a bearing plate (603) fixedly connected on one end of the telescopic spring (602) and matched with the water outlet hole (5), a transmission rod (604) fixedly connected on one side of the bearing plate (603), and a push plate (605) fixedly connected on the tail end of the transmission rod (604).

3. A spiral taphole reamer according to claim 2, wherein One end of the water outlet hole (5) is opened with a contraction groove (606), and an extrusion plate (607) is rotatably installed in the contraction groove (606), and a telescopic spring (608) is fixedly connected between the extrusion plate (607) and the contraction groove (606).

4. A spiral taphole reamer according to claim 1 wherein, The transmission discharge mechanism (7) includes an adjusting ring (701) rotatably installed on the inner surface of the drill body (1), a positioning rod (702) rotatably connected in the cooling cavity (2), and a support rod (703) fixedly connected between the adjusting ring (701) and the positioning rod (702), and a transmission frame (704) fixedly connected on one side of the positioning rod (702).

5. A spiral taphole reamer according to claim 1 wherein, The surface of the drill body (1) is opened with a stepped groove (8), the surface of the drill body (1) is opened with a spiral groove (9), and the surface of the drill rod (3) is opened with a connecting thread (10).

6. A spiral taphole reamer according to claim 4, wherein The top end of the positioning rod (702) is rotatably connected with the drill rod (3), and the surface of the adjusting ring (701) is provided with anti-skid lines (11).

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