Cleaning and reaming drill rod for casting aluminum alloy furnace eye

Abstract

The invention discloses a reaming drill rod for cleaning a cast aluminum alloy furnace eye, and relates to the technical field of metal smelting, the reaming drill rod comprises a reaming drill rod head, a circular truncated cone, a reaming drill rod and a reaming drill rod handle, the reaming drill rod comprises a first end and a second end, the first end of the reaming drill rod is connected with the reaming drill rod handle, and the second end of the reaming drill rod is connected with the circular truncated cone. The second end of the reaming drill rod is connected with the circular truncated cone, the reaming drill bit is in the shape of a pyramid shaped like a Chinese character'mi 'and comprises a large end, and the large end of the reaming drill bit is arranged at the end, away from the reaming drill rod, of the circular truncated cone. The reaming drill bit is designed into the star-shaped pyramid reaming drill bit, so that a flow hole can be better cleaned, a furnace hole is ensured to be clean and unobstructed, the flow hole is fully ensured to be clean, and the trend of reducing the hole diameter of the flow hole is slowed down; and the distance between the adjacent ridges is small, so that the aluminum slag can be cut into the ridges, and the aluminum slag around the furnace eye can be thoroughly cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of metal smelting, in particular to a hole-reaming drill for cleaning a furnace eye of cast aluminum alloy. Background Art

[0002] During the aluminum alloy casting process, aluminum slag gradually accumulates at the furnace eye opening where the static furnace connects to the chute as production progresses. This accumulation of aluminum slag causes the eye opening to shrink, hindering the proper flow of molten aluminum. Therefore, after each casting run, the furnace eye needs to be cleaned to ensure a clear flow. Currently, production personnel typically use tools such as round or triangular reamers to clean the eye opening. These tools offer quick and convenient cleaning, mitigating the shrinkage of the eye opening.

[0003] However, existing reamer drills suffer from a common problem: their tapered drill tip design is too simple. When the drill is used to poke the flow hole, aluminum slag inside the hole often cannot be completely removed, and the resulting shape is irregular. This not only prevents the flow hole from being completely sealed during shutdown and flow blockage, but also increases the risk of aluminum liquid leakage. Summary of the Invention

[0004] In view of this, an embodiment of the present invention provides a hole-cleaning drill for aluminum alloy casting furnace, which at least solves one technical problem existing in the prior art.

[0005] To achieve the above-mentioned objectives, the present invention mainly provides the following technical solutions. An embodiment of the present invention provides a reaming drill for cleaning a cast aluminum alloy furnace hole, comprising a reaming drill bit, a frustum, a reaming drill rod and a reaming drill handle. The reaming drill rod comprises a first end and a second end. The first end of the reaming drill rod is connected to the reaming drill handle, and the second end of the reaming drill rod is connected to the frustum. The reaming drill bit is shaped like a M-shaped pyramid and includes a large end. The large end of the reaming drill bit is arranged on the end of the frustum away from the reaming drill rod.

[0006] Optionally, the M-shaped pyramid includes a pyramid body, which includes a tip and an end face, and a conical surface is formed by gradually expanding from the tip to the end face, and a groove is opened along the circumference of the conical surface to form a chip groove, and the protrusions between adjacent chip grooves form a ridge.

[0007] Optionally, the width of the ridge is 4 mm to 20 mm.

[0008] Optionally, at least a portion of the ridge surface is provided with a chip groove.

[0009] Optionally, the outer surfaces of the reaming drill rod and the frustum are coated with a high-temperature resistant and corrosion-resistant coating.

[0010] Optionally, the reaming drill handle includes a cylindrical handle or a steering wheel-shaped handle; when a cylindrical handle is used, the outer peripheral surface of the cylindrical handle is provided with anti-slip grooves or is covered with a rubber sleeve.

[0011] Optionally, the reaming drill further includes a quick-change connection structure, and the second end of the reaming drill rod is connected to the frustum via the quick-change connection structure.

[0012] Optionally, the reaming drill rod adopts a solid rod body.

[0013] Optionally, the reaming drill further includes a rotary joint, and the reaming drill handle is connected to the reaming drill rod via the rotary joint, so that the reaming drill rod can rotate relative to the reaming drill handle.

[0014] Optionally, the reaming drill bit is made of high-hardness alloy steel.

[0015] By means of the above technical solution, the present invention has at least the following beneficial effects:

[0016] The embodiment of the present application provides a reaming drill for cleaning the furnace eye of cast aluminum alloy. By designing the reaming drill bit as a M-shaped pyramid reaming drill bit, the flow eye can be better cleaned, the furnace eye can be kept clean and unobstructed, the flow eye can be fully ensured to be clean, and the trend of the flow eye aperture shrinking can be slowed down; and the spacing between adjacent ridges is small, which can better cut into the aluminum slag, and the aluminum slag around the furnace eye can be thoroughly cleaned, so that the flow eye can be completely blocked when the machine is shut down, and there is no risk of aluminum liquid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a hole-reaming drill for cleaning an aluminum alloy casting furnace provided in an embodiment of the present invention.

[0018] The reference numerals indicate:

[0019] 1. Reaming drill bit; 2. Round table; 3. Reaming drill rod; 4. Reaming drill handle. DETAILED DESCRIPTION

[0020] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0022] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] See also Figure 1 As shown, according to an embodiment of the present application, a reaming drill for cleaning a furnace hole of a cast aluminum alloy is provided, comprising a reaming drill bit 1, a frustum 2, a reaming drill rod 3 and a reaming drill handle 4, the reaming drill rod 3 comprising a first end and a second end, the first end of the reaming drill rod 3 being connected to the reaming drill handle 4, the second end of the reaming drill rod 3 being connected to the frustum 2, the reaming drill bit 3 being in the shape of a M-shaped pyramid, comprising a large end, the large end of the reaming drill bit 1 being arranged on the end of the frustum 2 facing away from the reaming drill rod 3.

[0025] By designing the reaming drill bit 1 as a M-shaped pyramid reaming drill bit, the flow eye can be better cleaned, ensuring that the flow eye is clean and unobstructed, fully ensuring that the flow eye is clean, and slowing down the trend of the flow eye aperture reduction; and the spacing between adjacent ridges is small, which can better cut into the aluminum slag, and the aluminum slag around the furnace eye is thoroughly cleaned, so that the flow eye can be completely blocked when the machine is shut down, and there is no risk of aluminum liquid leakage.

[0026] The reaming drill bit 3 is in the shape of a mitre-shaped pyramid, including a large end, which is arranged on the end of the cone 2 away from the reaming drill rod 3; that is, the diameter of the cone 2 is equal to the diameter of the reaming drill rod 3.

[0027] The length of the reaming drill rod 3 is 1500 mm to 1800 mm, and reaming drill rods 3 of different lengths can be selected according to specific working conditions for assembly with the reaming drill head 1. The reaming drill rod 3 is a round rod with a diameter of 30 mm.

[0028] The specific cleaning process is as follows: the operator wears a mask and holds the reaming drill handle 4, and pokes the reaming drill bit 1 into the flow eye, and continuously rotates the reaming drill handle 4, thereby driving the reaming drill bit 1 to start cleaning the aluminum slag at the flow eye. The cleaned aluminum slag will be cleared out along the gap on the reaming drill bit 1, thereby cleaning the furnace eye.

[0029] In another embodiment, the mitre-shaped pyramid includes a pyramid body, which includes a tip and an end face. The pyramid body gradually expands from the tip to the end face to form a cone surface, and grooves are opened along the circumference of the cone surface to form chip grooves. The protrusions between adjacent chip grooves form ridges.

[0030] The number of ridges is 8, and the number of flutes is the same as the number of ridges, which is also 8.

[0031] The pyramid body includes a tip, which is used for inserting and penetrating the aluminum slag.

[0032] Grooves are created along the circumference of the cone to form chip flutes, while protrusions between adjacent flutes form ridges. In other words, the ridges and flutes are arranged alternately, forming a symmetrical reflective structure. Each ridge extends from the top of the cone to the edge of the end face, forming a continuous scraping edge responsible for scraping and crushing aluminum slag. The chip flutes extend accordingly, ensuring smooth discharge of debris from the tip to the bottom, providing a channel for the aluminum slag to be removed from the flutes.

[0033] In another embodiment, the width of the ridge is 4 mm to 20 mm.

[0034] The ridge width ranges from 4mm to 20mm, making it moderately wide and more effective in scraping away slag and residue from the furnace eye, improving cleaning efficiency. Ridges less than 4mm in width may be less strong and more susceptible to breakage when subjected to significant stress during furnace eye cleaning, impacting tool durability and reliability. Ridges greater than 20mm in width may reduce the cutting force per unit area, resulting in incomplete removal of aluminum slag from the furnace eye and reduced efficiency.

[0035] Therefore, the moderate width of the ridge can ensure the mechanical strength of the reaming drill bit 1 during the cleaning process and reduce the risk of breakage; it helps to improve the durability of the reaming drill bit, enabling it to withstand repeated physical impact and wear and extend its service life.

[0036] In another embodiment, at least a portion of the ridge surface is provided with a chip groove to improve the efficiency of removing aluminum slag.

[0037] Among them, at least part of the ridge side surfaces are provided with chip grooves, that is, in this embodiment, the ridges provided with chip grooves and the ridges without chip grooves are arranged alternately, ensuring that the ridges have sufficient strength, thereby improving the overall performance of aluminum slag removal and avoiding blockage.

[0038] In another embodiment, the outer surfaces of the reaming rod 3 and the truncated cone 2 are coated with a high-temperature, corrosion-resistant coating. This coating protects the reaming rod 3 and the truncated cone 2 from high-temperature oxidation and corrosion by corrosive media, thereby extending the service life of the components. It also enhances the high-temperature and corrosion resistance of the reaming rod 3 and the truncated cone 2, enabling them to operate stably in harsher environments, reducing the frequency of repair and replacement due to component damage, and thus lowering long-term maintenance costs.

[0039] Specifically, in this embodiment, the high temperature resistant and corrosion resistant coating is an alumina ceramic coating. In other embodiments, the type of the high temperature resistant and corrosion resistant coating can be changed according to specific working conditions.

[0040] In another embodiment, the reaming drill handle 4 includes a cylindrical handle or a steering wheel-shaped handle; when a cylindrical handle is used, the outer circumference of the cylindrical handle is provided with anti-slip grooves or is covered with a rubber sleeve.

[0041] When the reamer handle 4 is cylindrical, its outer circumference is provided with anti-slip grooves. First, the diameter of the cylindrical handle is larger than the diameter of the reamer rod 3 to form a grip. By rotating the cylindrical handle through the grip, the user rotates the reamer rod 3 and the reamer bit 1, thereby removing aluminum slag from the furnace bore. Second, the outer circumference of the cylindrical handle is provided with anti-slip grooves to enhance grip stability and comfort.

[0042] Among them, the reaming drill handle 4 is a steering wheel-shaped handle. Since the steering wheel-shaped handle is hollowed out, it is more convenient for the operator to rotate the reaming drill rod 3 through it compared to a cylindrical handle, thereby improving the convenience of operation.

[0043] In another embodiment, the reaming drill further includes a quick-change connection structure, through which the second end of the reaming drill rod 3 is connected to the truncated table 2. The quick-change connection structure facilitates the replacement of reaming drill rods 3 of different lengths to accommodate different working conditions, thereby expanding the scope of application.

[0044] Among them, the quick-change connection structure includes a socket end and a plug block end, the socket end is arranged at the second end of the reaming drill rod 3, and a spring-loaded locking steel ball is provided on the inner wall of the socket end. When the socket end is not connected with the plug block end, the locking steel ball extends to the outside of the inner wall of the socket section under the action of the spring; the plug block end is arranged on the end face of the cone 2 away from the reaming drill bit 1, and an annular locking groove is opened on the plug block end along the circumferential direction; when the socket end and the plug block end are connected, the locking steel ball is pushed into the locking groove under the action of the spring, thereby realizing the quick connection of the reaming drill rod 3 and the cone 2.

[0045] The specific connection process is as follows: the plug end is inserted into the socket end, the outer surface of the plug end contacts the locking steel ball to push the locking steel ball back into the blind hole of the socket end wall, until the locking groove of the plug end is aligned with the locking steel ball, the locking steel ball extends out of the blind hole under the action of the spring and cooperates with the locking groove, thereby quickly connecting the reaming drill rod 3 and the round table 2.

[0046] In another embodiment, the reaming rod 3 is a solid rod.

[0047] The reaming drill rod 3 adopts a solid rod body. Since the solid rod body has no internal space, it has higher structural strength and rigidity and can withstand greater bending and torsional forces.

[0048] In another embodiment, the reamer further includes a rotary joint, through which the reamer handle 4 is connected to the reamer rod 3, allowing the reamer rod 3 to rotate relative to the reamer handle 4. This relative rotation of the reamer rod 3 relative to the reamer handle 4 accommodates flow holes with varying inclination angles. This allows workers to use the reamer at various angles and directions without being restricted by a fixed orientation, making it easier to remove aluminum slag from the furnace bore. This also reduces the risk of damage to the furnace bore or the reamer itself caused by forceful tool manipulation. By adapting to flow holes with varying inclination angles, the reamer rod 3 can be thoroughly cleaned of aluminum slag from the flow hole.

[0049] In this embodiment, the rotary joint is a universal joint.

[0050] In another embodiment, the reaming drill bit 1 is made of high-hardness alloy steel to improve the wear resistance and service life of the reaming drill bit 1 .

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A brazing drill for cleaning and reaming aluminum alloy casting furnace holes, characterized in that: The invention comprises a reaming drill bit (1), a truncated cone (2), a reaming drill rod (3) and a reaming drill handle (4), wherein the reaming drill rod (3) comprises a first end and a second end, the first end of the reaming drill rod (3) is connected to the reaming drill handle (4), and the second end of the reaming drill rod (3) is connected to the truncated cone (2). The reaming drill bit (3) is in the shape of a crisscross pyramid and comprises a large end. The large end of the reaming drill bit (1) is arranged on an end of the truncated cone (2) away from the reaming drill rod (3).

2. The brazing drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 1, characterized in that: The mitre-shaped pyramid includes a pyramid body, which includes a tip and an end face. A conical surface is gradually expanded from the tip to the end face. Grooves are opened along the circumference of the conical surface to form chip grooves, and protrusions between adjacent chip grooves form ridges.

3. The brazing drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 2, characterized in that: The width of the ridge is 4 mm to 20 mm.

4. The brazing drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 2, characterized in that: At least a portion of the ridge surface is provided with chip grooves.

5. The brazing drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 1, characterized in that: The outer surfaces of the reaming drill rod (3) and the frustum (2) are coated with a high-temperature resistant and corrosion-resistant coating.

6. The brazing drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 1, characterized in that: The reaming drill handle (4) comprises a cylindrical handle or a steering wheel-shaped handle; when a cylindrical handle is adopted, the outer peripheral surface of the cylindrical handle is provided with anti-slip grooves or is covered with a rubber sleeve.

7. The brazing drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 1, characterized in that: The reaming drill further comprises a quick-change connection structure, and the second end of the reaming drill rod (3) is connected to the frustum (2) via the quick-change connection structure.

8. The brazing drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 1, characterized in that: The reaming drill rod (3) adopts a solid rod body.

9. The drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 1, characterized in that: The reaming drill further comprises a rotary joint, and the reaming drill handle (4) is connected to the reaming drill rod (3) via the rotary joint so that the reaming drill rod (3) can rotate relative to the reaming drill handle (4).

10. The brazing drill for cleaning and reaming aluminum alloy casting furnace holes according to claim 1, characterized in that: The reaming drill bit (1) is made of high-hardness alloy steel.

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