Hub casting molten aluminum slag removing device

Abstract

The invention discloses a hub casting molten aluminum slag removing device. The device comprises a lifting mechanism, a horizontal frame body, a first rotating sleeve rod, a second rotating sleeve rod, a stirring paddle, a first rotating driving mechanism and a second rotating driving mechanism. The device overcomes the defects that in the slag removal and degassing process of aluminum alloy, different stirring amplitudes are needed, inert gas is introduced into feed water, a stirring rod needs to stretch into the bottom of molten aluminum, large-amplitude stirring is not needed, otherwise, the inert gas can be scattered everywhere of the molten aluminum, it cannot be guaranteed that included slag at the bottom is adsorbed by the inert gas, and the slag removal efficiency is high. Slowly stirring so that the inert gas is dispersed in the molten aluminum according to the gas partial pressure difference and the surface adsorption principle; and then the stirring amplitude is increased to prevent included slag from precipitating to the bottom, a refining agent is added to the surface of the molten aluminum to enable the included slag to fully react, finally, the included slag is removed, and purification is further achieved. According to the hub casting molten aluminum slag removal device, the shape of the stirring rod can be changed according to the molten aluminum purification progress.

Description

Technical Field

[0001] The invention relates to the field of wheel hubs, and in particular to a slag removal device for aluminum liquid in wheel hub casting. Background Art

[0002] Cast aluminum alloy is the most widely used aluminum alloy material in automobiles (accounting for about 80% of the aluminum alloy used in the entire vehicle). Therefore, the research, development, improvement and manufacturing of cast aluminum alloy parts are one of the most effective means to achieve lightweighting of automobiles.

[0003] In the process of slag removal and degassing of aluminum alloy, different stirring amplitudes are required. Inert gas is introduced into the water, and the stirring rod needs to be extended into the bottom of the aluminum liquid. Large stirring is not required here, otherwise the inert gas will immediately spread everywhere in the aluminum liquid, and it cannot be guaranteed that the inert gas can adsorb the slag inclusions at the bottom. Slow stirring is carried out to facilitate the inert gas to be dispersed in the aluminum liquid. It relies on the gas partial pressure difference and surface adsorption principle to absorb hydrogen and adsorb slag inclusions, and the slag inclusions are brought out of the aluminum liquid surface through the rising bubbles, so that the aluminum liquid is initially purified; then the stirring amplitude is increased to prevent the slag inclusions from settling to the bottom again, and refining agent is added to the aluminum liquid surface to make the slag inclusions fully react, and finally the slag inclusions are removed to further achieve purification.

[0004] Therefore, it is an urgent problem to be solved by the present invention to provide a wheel hub casting aluminum liquid slag removal device in which a stirring rod can change shape according to the aluminum liquid purification progress. Summary of the invention

[0005] In view of the above technical problems, the purpose of the present invention is to overcome the problem that different stirring amplitudes are required in the process of slag removal and degassing of aluminum alloy. When inert gas is introduced into the water, the stirring rod needs to be extended into the bottom of the aluminum liquid. Large-scale stirring is not required here, otherwise the inert gas will immediately spread all over the aluminum liquid, and it is impossible to ensure that the inert gas adsorbs the slag inclusions at the bottom. Slow stirring is performed to facilitate the inert gas to be dispersed in the aluminum liquid, relying on the gas partial pressure difference and the surface adsorption principle to absorb hydrogen and adsorb slag inclusions, and the slag inclusions are brought out of the aluminum liquid surface through the rising bubbles, so that the aluminum liquid is initially purified; then the stirring amplitude is increased to prevent the slag inclusions from settling to the bottom again, and a refining agent is added to the aluminum liquid surface to make the slag inclusions fully react, and finally the slag inclusions are removed to further achieve purification. Thus, a hub casting aluminum liquid slag removal device is provided, in which the stirring rod can change shape according to the aluminum liquid purification progress.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a slag removal device for aluminum liquid in wheel hub casting, the device comprising: a lifting mechanism, a horizontal frame, a first rotating sleeve rod, a second rotating sleeve rod, a stirring paddle, a first rotating drive mechanism and a second rotating drive mechanism, the lifting mechanism is horizontally provided with a horizontal frame at the upper end, a gas tank is provided above the horizontal frame, the lower end of the gas tank is connected with an air pipe, the air pipe is vertically penetrated through the horizontal frame, the first rotating sleeve rod is coaxially sleeved on the air pipe, and a driving turntable is coaxially provided at the lower end thereof, a plurality of driving grooves are provided around the circumference of the driving turntable, and the second rotating sleeve rod is coaxially sleeved on the first rotating sleeve rod The movable sleeve rod is coaxially provided with a limit turntable covered on the driving turntable at its lower end, and a plurality of first limit grooves corresponding to each driving groove are arranged around the circumference of the limit turntable, and a plurality of stirring paddles corresponding to each driving groove are arranged around the circumference of the limit turntable, and the stirring paddles can reciprocate along the axial direction of the limit turntable, and a limit rod matching the driving groove and the first limit groove is arranged near one end of the driving turntable, the first rotation drive mechanism is arranged on the horizontal frame to drive the first rotating sleeve rod to rotate, and the second rotation drive mechanism is arranged on the horizontal frame to drive the second rotating sleeve rod to rotate.

[0007] Preferably, the driving groove is an arc groove, the first limiting groove is a strip groove, the contact part of the limiting rod with the arc groove is provided with a cylinder adapted thereto, and the contact part with the strip groove is provided with a quadrangular prism adapted thereto.

[0008] Preferably, a plurality of air outlets are arranged around the lower end of the air pipe.

[0009] Preferably, the first rotation drive mechanism includes: a first rotation drive motor, a driving bevel gear and a transmission bevel gear, the upper end of the first rotating sleeve is coaxially provided with a transmission bevel gear, the first rotation drive motor is arranged on a horizontal frame, and its output shaft is coaxially provided with a driving bevel gear meshing with the transmission bevel gear.

[0010] Preferably, the second rotation drive mechanism includes: a second rotation drive motor, a driving gear, a transmission gear and a transmission belt, the transmission gear is coaxially arranged on the upper end of the second rotating sleeve, the second rotation drive motor is arranged on a horizontal frame, and its output shaft is coaxially arranged with a driving gear, one end of the transmission belt is sleeved on the driving gear, and the other end is sleeved on the transmission gear.

[0011] Preferably, the lifting mechanism includes: a lifting frame, a threaded lifting rod, a rotating ring block, a limit assembly and a driving assembly. The lifting frame is arranged below the horizontal frame body. The threaded lifting rod is vertically threadedly assembled in the lifting frame, and its upper end is fixed to the bottom of the horizontal frame body. The rotating ring block is coaxially and rotatably mounted on the threaded lifting rod, and a thread matching the rod body of the threaded lifting rod is arranged on its inner side. The limit assembly is used to limit the rotation of the threaded lifting rod, and the driving assembly is used to drive the rotating ring block to rotate.

[0012] Preferably, the limiting assembly comprises: a second limiting groove and a limiting block, the thread of the threaded lifting rod body is partially missing along the vertical direction to form the second limiting groove, and the inner side of the lifting frame is provided with a limiting block engaged with the second limiting groove.

[0013] Preferably, the driving assembly comprises: a third rotary driving motor and a driving worm, a plurality of worm teeth are arranged around the circumference of the rotating ring block, the third rotary driving motor is arranged on the lifting frame, and a driving worm meshing with the worm teeth is coaxially arranged on its output shaft.

[0014] Preferably, a linear drive motor is disposed on the horizontal frame, an output shaft of the linear drive motor is vertically downwardly disposed on one side of the second rotating sleeve rod, and a spoiler is disposed at an output end thereof, and the spoiler is disposed above the stirring paddle.

[0015] According to the above technical scheme, the beneficial effects of the present invention compared with the prior art are as follows: the present application starts the lifting mechanism to drive the stirring paddle to enter the bottom of the aluminum liquid through the horizontal frame, and then passes the inert gas in the gas tank into the aluminum liquid through the air pipe, and starts the first rotary drive mechanism to drive the second rotating sleeve rod to rotate, so as to achieve the slow rotation of the stirring paddle through the limit turntable, thereby ensuring that the inert gas adsorbs the slag inclusions at the bottom and absorbs hydrogen; and then by adding refining agent to the aluminum liquid, the first rotary drive mechanism is started at this time to drive the first rotating sleeve rod to rotate, thereby driving the driving turntable to rotate, and then driving each stirring paddle to reciprocate along the axis direction of the limit turntable through the driving groove and the first limit groove, so as to increase the contact area between the stirring paddle and the aluminum liquid, increase the stirring amplitude, prevent the slag inclusions from settling to the bottom again, and fully react with the refining agent, and finally remove the slag inclusions, thereby improving the slag cleaning and degassing effect.

[0016] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 A three-dimensional slag removal device for aluminum liquid in wheel hub casting provided in a preferred embodiment of the present invention Figure 1 .

[0019] Figure 2 A three-dimensional slag removal device for aluminum liquid in wheel hub casting provided in a preferred embodiment of the present invention Figure 2 .

[0020] Figure 3 A partial three-dimensional diagram of a wheel hub casting aluminum liquid slag removal device provided in a preferred embodiment of the present invention Figure 1 .

[0021] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0022] Figure 5 A partial plan view of a slag removal device for a wheel hub casting aluminum liquid provided in a preferred embodiment of the present invention Figure 1 .

[0023] Figure 6 A partial three-dimensional diagram of a wheel hub casting aluminum liquid slag removal device provided in a preferred embodiment of the present invention Figure 2 .

[0024] Figure 7 It is a partial plan view of a slag removal device for molten aluminum in wheel hub casting provided in a preferred embodiment of the present invention.

[0025] Figure 8 A partial plan view of a slag removal device for a wheel hub casting aluminum liquid provided in a preferred embodiment of the present invention Figure 2 .

[0026] Fig. 9 A partial three-dimensional diagram of a wheel hub casting aluminum liquid slag removal device provided in a preferred embodiment of the present invention Figure 3 .

[0027] Fig.10 A partial three-dimensional diagram of a wheel hub casting aluminum liquid slag removal device provided in a preferred embodiment of the present invention Figure 4 .

[0028] Description of reference numerals: 1-lifting mechanism; 101-lifting frame; 102-threaded lifting rod; 103-rotating ring block; 10301-worm gear; 104-limiting assembly; 10401-second limiting groove; 10402-limiting block; 105-driving assembly; 10501-third rotating driving motor; 10502-driving worm; 2-horizontal frame; 201-gas tank; 202-air pipe; 2201-air outlet; 203-linear driving motor; 204-spoiler; 3-first rotating sleeve rod; 301-driving turntable; 30101-driving slot; 4-second rotating sleeve rod; 401-limiting turntable; 40101-first limiting slot; 5-stirring paddle; 501-limiting rod; 6-first rotary drive mechanism; 601-first rotary drive motor; 602-driving bevel gear; 603-transmission bevel gear; 7-second rotary drive mechanism; 701-second rotary drive motor; 702-driving gear; 703-transmission gear; 704-transmission belt. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0030] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are used to indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the invented product is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Reference Figure 1-Figure 10 : A slag removal device for aluminum liquid in wheel hub casting, the device comprises: a lifting mechanism 1, a horizontal frame 2, a first rotating sleeve rod 3, a second rotating sleeve rod 4, a stirring paddle 5, a first rotary drive mechanism 6 and a second rotary drive mechanism 7, the lifting mechanism 1 is horizontally provided with a horizontal frame 2 at the upper end, a gas tank 201 is provided above the horizontal frame 2, the gas tank 201 is connected with an air pipe 202 at the lower end, the air pipe 202 vertically penetrates the horizontal frame 2, the first rotating sleeve rod 3 is coaxially sleeved on the air pipe 202, and a driving turntable 301 is coaxially provided at its lower end, a plurality of driving grooves 30101 are provided around the circumference of the driving turntable 301, the second rotating sleeve rod 4 is coaxially sleeved on the first rotating sleeve rod 3, and a A limit turntable 401 is covered on the driving turntable 301, and a plurality of first limit grooves 40101 corresponding to each driving groove 30101 are arranged around the limit turntable 401, and a plurality of stirring paddles 5 corresponding to each driving groove 30101 are arranged around the limit turntable 401. The stirring paddle 5 can reciprocate along the axial direction of the limit turntable 401, and a limit rod 501 matched with the driving groove 30101 and the first limit groove 40101 is arranged at one end thereof close to the driving turntable 301. The first rotation drive mechanism 6 is arranged on the horizontal frame 2 to drive the first rotating sleeve rod 3 to rotate, and the second rotation drive mechanism 7 is arranged on the horizontal frame 2 to drive the second rotating sleeve rod 4 to rotate.

[0034] The present application starts the lifting mechanism 1 to drive the stirring paddle 5 to enter the bottom of the aluminum liquid through the horizontal frame 2, then passes the inert gas in the gas tank 201 into the aluminum liquid through the air pipe 202, and starts the first rotary drive mechanism 6 to drive the second rotary sleeve 4 to rotate, thereby realizing the slow rotation of the stirring paddle 5 through the limit turntable 401, so as to ensure that the inert gas adsorbs the slag inclusions at the bottom and absorbs hydrogen; then, by adding refining agent to the aluminum liquid, the first rotary drive mechanism 6 is started at this time to drive the first rotary sleeve 3 to rotate, thereby driving the driving turntable 301 to rotate, and then driving each stirring paddle 5 to reciprocate along the axis direction of the limit turntable 401 through the driving groove 30101 and the first limit groove 40101, so as to increase the contact area between the stirring paddle 5 and the aluminum liquid, increase the stirring amplitude, prevent the slag inclusions from settling to the bottom again, and fully react with the refining agent, finally remove the slag inclusions, and improve the slag cleaning and degassing effect.

[0035] Reference Fig. 9 and Fig.10 : The driving groove 30101 is an arc groove, the first limiting groove 40101 is a strip groove, the contact part of the limiting rod 501 with the arc groove is provided with a cylinder adapted thereto, and the contact part with the strip groove is provided with a quadrangular prism adapted thereto.

[0036] The present application ensures that the limiting rod 501 moves along the extension direction of the arc groove without interference through the cooperation of the cylinder and the arc groove, and ensures that the limiting rod 501 does not rotate through the cooperation of the quadrangular prism and the strip groove, thereby ensuring the stable movement of the stirring paddle 5.

[0037] Reference Figure 3 : A plurality of air outlets 20201 are arranged around the lower end of the air pipe 202.

[0038] The present application arranges a plurality of gas outlets 20201 around the lower end of the gas pipe 202 to ensure that the inert gas will immediately spread to all parts of the aluminum liquid, ensure that it fully reacts with the hydrogen in the aluminum liquid and brings the slag out of the aluminum liquid surface.

[0039] Reference Figure 2 The first rotation drive mechanism 6 includes: a first rotation drive motor 601, a driving bevel gear 602 and a transmission bevel gear 603. The transmission bevel gear 603 is coaxially arranged on the upper end of the first rotating sleeve 3. The first rotation drive motor 601 is arranged on the horizontal frame 2, and its output shaft is coaxially arranged with a driving bevel gear 602 meshing with the transmission bevel gear 603.

[0040] The present application starts the first rotary drive motor 601 to drive the driving bevel gear 602 to rotate, thereby driving the driving bevel gear 602 to drive the transmission bevel gear 603 to rotate, thereby driving the first rotating sleeve 3 to rotate, and then driving the driving turntable 301 to rotate, thereby driving each stirring paddle 5 to reciprocate along the axial direction of the limiting turntable 401 through the driving slot 30101 and the first limiting slot 40101.

[0041] Reference Figure 2 The second rotation drive mechanism 7 includes: a second rotation drive motor 701, a driving gear 702, a transmission gear 703 and a transmission belt 704. The transmission gear 703 is coaxially arranged on the upper end of the second rotating sleeve 4. The second rotation drive motor 701 is arranged on the horizontal frame 2, and its output shaft is coaxially arranged with the driving gear 702. One end of the transmission belt 704 is sleeved on the driving gear 702, and the other end is sleeved on the transmission gear 703.

[0042] In the present application, the second rotary drive motor 701 is started to drive the drive gear 702 to rotate, thereby driving the drive gear 703 to rotate through the transmission belt 704, thereby realizing the rotation of the second rotating sleeve 4, so as to drive each stirring paddle 5 to rotate through the limiting turntable 401.

[0043] Reference Figure 2 The lifting mechanism 1 includes: a lifting frame 101, a threaded lifting rod 102, a rotating ring block 103, a limit assembly 104 and a driving assembly 105. The lifting frame 101 is arranged below the horizontal frame 2. The threaded lifting rod 102 is vertically threadedly assembled in the lifting frame 101, and its upper end is fixed to the bottom of the horizontal frame 2. The rotating ring block 103 is coaxially rotatably sleeved on the threaded lifting rod 102, and its inner side is provided with a thread that is compatible with the rod body of the threaded lifting rod 102. The limit assembly 104 is used to limit the rotation of the threaded lifting rod 102, and the driving assembly 105 is used to drive the rotating ring block 103 to rotate.

[0044] In the present application, the driving assembly 105 is started to drive the rotating ring block 103 to rotate. Since the limiting assembly 104 can limit the rotation of the threaded lifting rod 102, the threaded lifting rod 102 will gradually be screwed out of the lifting frame 101, thereby realizing the lifting of the horizontal frame 2.

[0045] Reference Figure 4 The limiting assembly 104 includes: a second limiting groove 10401 and a limiting block 10402. The thread of the threaded lifting rod 102 is partially missing in the vertical direction to form the second limiting groove 10401. The inner side of the lifting frame 101 is provided with a limiting block 10402 that engages with the second limiting groove 10401.

[0046] The present application ensures that the threaded lifting rod 102 does not rotate by engaging the limiting block 10402 with the second limiting groove 10401 , thereby gradually being screwed out of the lifting frame 101 by the rotating ring block 103 .

[0047] Reference Figure 3 The driving assembly 105 includes: a third rotation driving motor 10501 and a driving worm 10502. A plurality of worm teeth 10301 are arranged around the circumference of the rotating ring block 103. The third rotation driving motor 10501 is arranged on the lifting frame 101, and its output shaft is coaxially provided with a driving worm 10502 meshing with the worm teeth 10301.

[0048] In the present application, the third rotary drive motor 10501 is started to drive the drive worm 10502 to rotate, thereby driving the rotating ring block 103 to rotate through the worm gear 10301 .

[0049] Reference Figure 3 A linear drive motor 203 is arranged on the horizontal frame 2, and the output shaft of the linear drive motor 203 is arranged vertically downward on one side of the second rotating sleeve rod 4, and a spoiler 204 is arranged at its output end, and the spoiler 204 is arranged above the stirring paddle 5.

[0050] In the present application, after the slag inclusion has fully reacted, the linear drive motor 203 is started to drive the spoiler 204 into the aluminum liquid to accelerate the discharge of bubbles.

[0051] When the device provided by the present invention is in use, the lifting mechanism 1 is started to drive the stirring paddle 5 to enter the bottom of the aluminum liquid through the horizontal frame 2, and then the inert gas in the gas tank 201 is introduced into the aluminum liquid through the air pipe 202, and the first rotary drive mechanism 6 is started to drive the second rotating sleeve rod 4 to rotate, so as to achieve the slow rotation of the stirring paddle 5 through the limit turntable 401, so as to ensure that the inert gas adsorbs the slag inclusions at the bottom and absorbs hydrogen; and then the refining agent is added to the aluminum liquid, and the first rotary drive mechanism 6 is started at this time to drive the first rotating sleeve rod 3 to rotate, thereby driving the driving turntable 301 to rotate, and then driving each stirring paddle 5 to reciprocate along the axis direction of the limit turntable 401 through the driving groove 30101 and the first limit groove 40101, so as to increase the contact area between the stirring paddle 5 and the aluminum liquid, increase the stirring amplitude, prevent the slag inclusions from settling to the bottom again, and fully react with the refining agent, and finally remove the slag inclusions, thereby improving the slag cleaning and degassing effect.

[0052] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0054] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A slag removal device for aluminum liquid in wheel hub casting, characterized in that: The device comprises: a lifting mechanism (1), a horizontal frame (2), a first rotating sleeve rod (3), a second rotating sleeve rod (4), a stirring paddle (5), a first rotating driving mechanism (6) and a second rotating driving mechanism (7); the lifting mechanism (1) is horizontally provided with a horizontal frame (2) at the upper end; a gas tank (201) is provided above the horizontal frame (2); the gas tank (201) is connected with a gas pipe (202) at the lower end; the gas pipe (202) vertically penetrates the horizontal frame (2); the first rotating sleeve rod (3) is coaxially sleeved on the gas pipe (202); a driving turntable (301) is coaxially provided at the lower end; a plurality of driving grooves (30101) are provided around the circumference of the driving turntable (301); the second rotating sleeve rod (4) is coaxially sleeved on the first rotating sleeve rod (3); a cover (20101) is coaxially provided at the lower end thereof; A limit turntable (401) on the turntable (301), the limit turntable (401) is surrounded by a plurality of first limit grooves (40101) corresponding to each driving groove (30101), the limit turntable (401) is surrounded by a plurality of stirring paddles (5) corresponding to each driving groove (30101), the stirring paddle (5) can reciprocate along the axis of the limit turntable (401), and a limit rod (501) is arranged at one end of the stirring paddle (5) close to the driving turntable (301) and matched with the driving groove (30101) and the first limit groove (40101), the first rotation drive mechanism (6) is arranged on the horizontal frame (2) for driving the first rotating sleeve rod (3) to rotate, and the second rotation drive mechanism (7) is arranged on the horizontal frame (2) for driving the second rotating sleeve rod (4) to rotate.

2. A wheel hub casting aluminum liquid slag removal device according to claim 1, characterized in that: The driving groove (30101) is an arc-shaped groove, the first limiting groove (40101) is a strip-shaped groove, the contact portion of the limiting rod (501) with the arc-shaped groove is provided with a cylinder adapted thereto, and the contact portion with the strip-shaped groove is provided with a quadrangular prism adapted thereto.

3. The slag removal device for wheel hub casting aluminum liquid according to claim 1 is characterized in that: A plurality of air outlets (20201) are arranged around the lower end of the air pipe (202).

4. The slag removal device for wheel hub casting aluminum liquid according to claim 1, characterized in that: The first rotary drive mechanism (6) comprises: a first rotary drive motor (601), a driving bevel gear (602) and a transmission bevel gear (603); the transmission bevel gear (603) is coaxially arranged on the upper end of the first rotating sleeve (3); the first rotary drive motor (601) is arranged on the horizontal frame (2), and its output shaft is coaxially arranged with a driving bevel gear (602) meshing with the transmission bevel gear (603).

5. The slag removal device for wheel hub casting aluminum liquid according to claim 1, characterized in that: The second rotary drive mechanism (7) comprises: a second rotary drive motor (701), a driving gear (702), a transmission gear (703) and a transmission belt (704); the transmission gear (703) is coaxially arranged on the upper end of the second rotating sleeve (4); the second rotary drive motor (701) is arranged on the horizontal frame (2), and the output shaft thereof is coaxially arranged with the driving gear (702); one end of the transmission belt (704) is sleeved on the driving gear (702), and the other end is sleeved on the transmission gear (703).

6. The slag removal device for molten aluminum in wheel hub casting according to claim 1 is characterized in that: The lifting mechanism (1) comprises: a lifting frame (101), a threaded lifting rod (102), a rotating ring block (103), a limiting assembly (104) and a driving assembly (105); the lifting frame (101) is arranged below a horizontal frame (2); the threaded lifting rod (102) is vertically threadedly assembled in the lifting frame (101), and its upper end is fixed to the bottom of the horizontal frame (2); the rotating ring block (103) is coaxially rotatably sleeved on the threaded lifting rod (102), and a thread matching the rod body of the threaded lifting rod (102) is arranged on its inner side; the limiting assembly (104) is used to limit the rotation of the threaded lifting rod (102); and the driving assembly (105) is used to drive the rotating ring block (103) to rotate.

7. A wheel hub casting aluminum liquid slag removal device according to claim 6, characterized in that: The limiting assembly (104) comprises: a second limiting groove (10401) and a limiting block (10402); the thread of the threaded lifting rod (102) is partially missing in the vertical direction to form the second limiting groove (10401); and the limiting block (10402) engaged with the second limiting groove (10401) is arranged on the inner side of the lifting frame (101).

8. The slag removal device for molten aluminum in wheel hub casting according to claim 6, characterized in that: The driving assembly (105) comprises: a third rotary driving motor (10501) and a driving worm (10502); a plurality of worm teeth (10301) are arranged around the circumference of the rotating ring block (103); the third rotary driving motor (10501) is arranged on the lifting frame (101), and its output shaft is coaxially provided with a driving worm (10502) meshing with the worm teeth (10301).

9. The wheel hub casting aluminum liquid slag removal device according to claim 1, characterized in that: A linear drive motor (203) is arranged on the horizontal frame (2), the output shaft of the linear drive motor (203) is arranged vertically downward on one side of the second rotating sleeve rod (4), and a spoiler (204) is arranged at its output end, and the spoiler (204) is arranged above the stirring paddle (5).

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