Stirring degassing device for preparing semi-solid aluminum alloy

Abstract

The utility model belongs to the technical field of semi-solid aluminum alloy processing, and provides a stirring degassing device for preparing semi-solid aluminum alloy, which comprises a lifting frame which is in transmission connection with a lifting piece; the transmission assembly comprises a gear box fixedly connected to the lifting frame, a planetary gear transmission mechanism is arranged in the gear box, a driving part is in transmission connection between the input end of the planetary gear transmission mechanism and the gear box, and the output end of the planetary gear transmission mechanism is in transmission connection with a plurality of stirring parts; and the gas powder conveying assembly comprises gas powder conveying equipment and a degassing shaft arranged in the planetary gear transmission mechanism, the bottom of the degassing shaft communicates with a degassing head, the degassing head is located in the semi-solid aluminum alloy melt, and the gas powder conveying equipment communicates with the degassing head through the degassing shaft. The semi-solid aluminum alloy melt degassing device can be used for efficiently degassing a semi-solid aluminum alloy melt, purifying the melt and homogenizing components.

Description

Technical Field

[0001] This utility model belongs to the field of semi-solid aluminum alloy processing technology, and in particular relates to a stirring and degassing device for preparing semi-solid aluminum alloys. Background Technology

[0002] In the production process of semi-solid aluminum alloys, gases and impurities often exist in the melt, which can seriously affect the quality of the semi-solid aluminum alloy. Traditional degassing methods suffer from problems such as low degassing efficiency and uneven mixing of alloy components, failing to meet the requirements for high-quality semi-solid aluminum alloy production. For example, some conventional degassing devices cannot effectively disperse bubbles and refining agents into the melt, resulting in insufficient removal of gases from the melt and difficulty in achieving ideal uniformity of alloy composition. Utility Model Content

[0003] The purpose of this invention is to provide a stirring and degassing device for preparing semi-solid aluminum alloys, so as to solve the above-mentioned problems and achieve the purpose of efficient degassing, purifying the melt and homogenizing the composition of semi-solid aluminum alloy melt.

[0004] To achieve the above objectives, this utility model provides the following solution: a stirring and degassing device for preparing semi-solid aluminum alloys, comprising:

[0005] A lifting frame, on which a lifting component is connected via a transmission, the lifting component being used to raise or lower the height of the lifting frame;

[0006] The transmission assembly includes a gearbox fixedly connected to the lifting frame, a planetary gear transmission mechanism is provided inside the gearbox, a driving component is connected between the input end of the planetary gear transmission mechanism and the gearbox, and a plurality of stirring components are connected to the output end of the planetary gear transmission mechanism for stirring semi-solid aluminum alloy melt.

[0007] The gas-powder conveying assembly includes a gas-powder conveying device and a degassing shaft disposed within the planetary gear transmission mechanism. The bottom of the degassing shaft is connected to a degassing head, which is located within a semi-solid aluminum alloy melt. The gas-powder conveying device is connected to the degassing head via the degassing shaft.

[0008] Preferably, the planetary gear transmission mechanism includes a sun gear, a plurality of planetary gears, and an internal gear ring fixedly connected in the gearbox. The axial direction of the internal gear ring is arranged in the vertical direction. The sun gear is arranged coaxially with the internal gear ring. The plurality of planetary gears are arranged between the sun gear and the internal gear ring, and the planetary gears mesh with the sun gear and the internal gear ring. The sun gear is fixedly sleeved on the degassing shaft. The sun gear is connected to the driving component through the degassing shaft. The plurality of stirring components are respectively connected to the plurality of planetary gears.

[0009] Preferably, a gear carrier is horizontally rotatably connected inside the gearbox, and the sun gear and several planetary gears are rotatably connected to the gear carrier.

[0010] Preferably, the stirring component includes a stirring shaft, the planetary gear is fixedly sleeved on the top of the stirring shaft, and a stirring head is fixedly connected to the bottom of the stirring shaft, the stirring head being located in the semi-solid aluminum alloy melt.

[0011] Preferably, a channel is provided inside the degassing shaft along the axis of the degassing shaft, the bottom of the channel is connected to the degassing head, and a plurality of feed ports are also provided on the top of the side wall of the degassing shaft in the circumferential direction. The plurality of feed ports are connected to the channel, and a material passage is provided between the plurality of feed ports and the gearbox. The gas-powder conveying equipment is connected to the plurality of feed ports through the material passage.

[0012] Preferably, the material feeding component includes a pneumatic ring plug fixedly connected inside the gearbox, the pneumatic ring plug being sleeved on the degassing shaft, and a plurality of the feed inlets being located inside the pneumatic ring plug, and the air-powder conveying device communicating with the interior of the pneumatic ring plug through a pipeline.

[0013] Preferably, the driving component includes a motor vertically fixedly connected to the top of the gearbox, and the output shaft of the motor is coaxially fixedly connected to the top of the degassing shaft.

[0014] Preferably, the lifting component includes a plurality of lifting screws, which are vertically rotatably connected to a plurality of lifting seats. The edge of the lifting frame is drivenly connected to the plurality of lifting screws, and one end of each of the plurality of lifting screws is drivenly connected to a rotation drive component.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects: Overall, the present invention blows the refining agent and argon into the melt through the degassing shaft, and through the rotation and stirring action of several stirring components, the semi-solid aluminum alloy melt generates violent convection, which fully disperses the blown bubbles and refining agent, so that the gas and impurities in the melt float to the surface and escape under the entrainment of the bubbles, thereby achieving the functions of efficient degassing, purifying the melt, and homogenizing the composition. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional schematic diagram of the stirring and degassing device of this utility model;

[0018] Figure 2 This is a schematic diagram of the stirring and degassing device of this utility model;

[0019] Figure 3 This is a schematic diagram of the gearbox of this utility model without the top cover;

[0020] Figure 4 This is a schematic diagram of the transmission component of this utility model;

[0021] Among them, 1. Motor; 2. First ball bearing; 3. Second ball bearing; 4. Gearbox; 5. Surface bearing; 6. Lifting frame; 7. Stirring shaft; 8. Lifting screw; 9. Lifting seat; 10. Air lubrication ring plug; 11. Air lubrication groove; 12. Feed inlet; 13. Internal gear ring; 14. Sun gear; 15. Air-powder conveying pipe; 16. Planetary gear; 17. Gear frame; 18. Third ball bearing; 19. Air-powder conveying equipment; 20. Degassing shaft; 21. Stirring head; 22. Degassing head. Detailed Implementation

[0022] 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.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-4 This utility model provides a stirring and degassing device for preparing semi-solid aluminum alloys, comprising:

[0025] The lifting frame 6 has a lifting component connected to it via a transmission. The lifting component is used to raise or lower the height of the lifting frame 6.

[0026] The transmission assembly includes a gearbox 4 fixedly connected to the lifting frame 6. A planetary gear transmission mechanism is provided inside the gearbox 4. A driving component is connected between the input end of the planetary gear transmission mechanism and the gearbox 4. A number of stirring components are connected to the output end of the planetary gear transmission mechanism. The stirring components are used to stir the semi-solid aluminum alloy melt.

[0027] The gas-powder conveying assembly includes a gas-powder conveying device 19 and a degassing shaft 20 disposed in a planetary gear transmission mechanism. The bottom of the degassing shaft 20 is connected to a degassing head 22, which is located in the semi-solid aluminum alloy melt. The gas-powder conveying device 19 is connected to the degassing head 22 through the degassing shaft 20.

[0028] The main function of the lifting component is to adjust the stirring component and the degassing head 22 to a suitable depth in the semi-solid aluminum alloy melt. The main function of the planetary gear rotation mechanism is to enable several stirring components to rotate and revolve within the semi-solid aluminum alloy melt through the drive of the driving component, so that the semi-solid aluminum alloy melt can generate violent convection under the dual action of rotation and stirring. The main function of the gas-powder conveying device 19 is to convey refining agent and argon to the degassing shaft 20. The main function of the degassing head 22 is to blow refining agent and argon into the melt. Overall, this utility model blows refining agent and argon into the melt through the degassing shaft, and the rotation and stirring action of several stirring components causes violent convection in the semi-solid aluminum alloy melt, which fully disperses the blown-in bubbles and refining agent, allowing the gas and impurities in the melt to float and escape under the entrainment of the bubbles, thereby achieving efficient degassing, purifying the melt, and homogenizing the composition.

[0029] Further optimization of the scheme: the gas-powder conveying equipment 19 is a conventional piece of equipment in the field, and its working principle and process will not be elaborated further. The main function of the gas-powder conveying equipment 19 is to convey the refining agent and argon gas into the semi-solid aluminum alloy melt.

[0030] Further optimization of the scheme: the planetary gear transmission mechanism includes a sun gear 14, several planetary gears 16, and an internal gear ring 13 fixedly connected in the gearbox 4. The axial direction of the internal gear ring 13 is arranged in the vertical direction. The sun gear 14 and the internal gear ring 13 are arranged coaxially. Several planetary gears 16 are arranged between the sun gear 14 and the internal gear ring 13, and the planetary gears 16 mesh with the sun gear 14 and the internal gear ring 13. The sun gear 14 is fixedly sleeved on the degassing shaft 20. The sun gear 14 is connected to the driving component through the degassing shaft 20. Several stirring components are respectively connected to several planetary gears 16.

[0031] like Figure 1 and Figure 4 As shown, the driving component drives the degassing shaft 20 to rotate the sun gear 14. Under the drive of the sun gear 14 and the constraint of the internal gear ring 13, the four sets of planetary gears 16 revolve around the sun gear 14 and rotate on their own axis, thereby driving the corresponding stirring component to rotate.

[0032] In a further optimized design, a gear carrier 17 is horizontally rotatably connected inside the gearbox 4, and the sun gear 14 and several planetary gears 16 are rotatably connected to the gear carrier 17.

[0033] like Figure 1As shown, a planar bearing 5 is horizontally fixedly connected to the bottom of the inner wall of the gearbox 4. The gear carrier 17 is rotatably connected to the gearbox 4 through the planar bearing 5. A first ball bearing 2 and a second ball bearing 3 are fixedly connected to the top of the gearbox 4 and the gear carrier 17, respectively, and are fixedly sleeved on the degassing shaft 20, similar to the vertically fixed sun gear 14. The gear carrier 17 is also fixedly connected to several third ball bearings 18, and several planetary gears 16 are rotatably connected to the gear carrier 17 through several third ball bearings 18.

[0034] The design is further optimized so that the stirring component includes a stirring shaft 7, a planetary gear 16 is fixedly sleeved on the top of the stirring shaft 7, and a stirring head 21 is fixedly connected to the bottom of the stirring shaft 7. The stirring head 21 is located in the semi-solid aluminum alloy melt.

[0035] like Figure 1 and Figure 2 As shown, the stirring head 21 is a six-blade stirring head. When the planetary gear 16 rotates, it transmits torque to the stirring head 21 through the stirring shaft 7. Under the stirring action of the stirring head 21, the gas is broken into smaller bubbles and covers more of the melt. At the same time, the stirring head 21 provides buoyancy, which quickly brings the bubbles to the surface of the melt. Meanwhile, the refining agent also covers more of the melt and rises quickly, achieving the effects of purifying the melt, efficiently degassing, and rapidly stirring.

[0036] By rationally designing the parameters of the planetary gears, stable and efficient rotation of the stirring head 21 can be achieved, enabling the stirring head to generate a suitable stirring flow field in the melt, thereby better dispersing bubbles and refining agents into the melt. This transmission method has advantages such as a large transmission ratio, high efficiency, and compact structure, and can provide sufficient power and a suitable rotational speed for the stirring head.

[0037] In a further optimized design, a channel is provided inside the degassing shaft 20 along its axis. The bottom of the channel is connected to the degassing head 22. Several feed inlets 12 are also provided on the top of the side wall of the degassing shaft 20 in the circumferential direction. The feed inlets 12 are connected to the channel. A material passage is provided between the feed inlets 12 and the gearbox 4. The gas-powder conveying equipment 19 is connected to the feed inlets 12 through the material passage.

[0038] The scheme is further optimized. The material handling component includes a pneumatic ring plug 10 fixedly connected in the gearbox 4. The pneumatic ring plug 10 is sleeved on the degassing shaft 20, and several feed inlets 12 are located inside the pneumatic ring plug 10. The air-powder conveying device 19 is connected to the inside of the pneumatic ring plug 10 through a pipeline.

[0039] Further optimize the plan, such as Figure 3 As shown, the degassing head 22 is disc-shaped, with its top fixedly connected to the degassing shaft 20, and its sidewalls having several outlets at equal intervals along the circumference, each of which is connected to a channel.

[0040] like Figure 1 and Figure 4 As shown, the air-slip ring plug 10 has an air-slip groove 11. The gas-powder conveying device 19 conveys the refining agent and argon gas through the gas-powder conveying pipe 15 to the air-slip groove 11 in the air-slip ring plug 10, and then enters the channel through several feed ports 12, and finally exits from the degassing head 22 into the melt. The air-slip ring plug 10 can ensure the stable conveying of gas and powder during the rotation of the degassing shaft 20, without leakage or blockage. At the same time, argon gas and refining agent are dispersed into the melt under the combined action of the centrifugal force and gas pressure of the degassing head 22.

[0041] The scheme is further optimized. The driving component includes a motor 1 that is vertically fixedly connected to the top of the gearbox 4. The output shaft of the motor 1 is coaxially fixedly connected to the top of the degassing shaft 20.

[0042] like Figure 2 As shown, motor 1 is fixedly connected to the top of gearbox 4 via a fixed lug plate.

[0043] Further optimization of the scheme: the lifting component includes several lifting screws 8, which are vertically rotatably connected to several lifting seats 9. The side of the lifting frame 6 is connected to the several lifting screws 8 in a transmission connection. One end of each of the several lifting screws 8 is connected to a rotating drive component (not shown in the figure).

[0044] like Figure 1 and Figure 2 As shown, the rotating drive component can be a motor, used to drive the lifting screw 8 to rotate. When it is necessary to lower the height of the lifting frame 6, the rotating drive component drives the lifting screw 8 to rotate, and the lifting screw 8 drives the lifting frame 6 to descend via bolt transmission. Controlling the rotating drive component to rotate in the opposite direction will raise the height of the lifting frame 6.

[0045] Further optimization of the scheme also includes a control unit (not shown in the figure), which is used to control the operation of the rotating drive, the air-powder conveying device 19 and the motor 1.

[0046] The working process of this embodiment is as follows: The stirring and degassing device is moved above the furnace containing semi-solid aluminum alloy melt. The lifting frame 6 is lowered to a suitable height by rotating the drive component, so that the degassing head 22 and several stirring heads 21 are in a suitable initial position in the melt. The motor 1 is started, causing the stirring head 21 to start rotating. At the same time, the gas-powder conveying device 19 is started, and the refining agent and argon gas are blown into the melt through the air-slip ring plug 10, the degassing shaft 20, and the degassing head 22 according to a predetermined flow rate and ratio. During the degassing process, the height of the lifting frame 6 can be adjusted according to the state of the melt and the degassing effect. After continuous stirring and degassing for a certain period of time, the degassing operation is completed, and the device can be removed.

[0047] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A stirring and degassing device for preparing semi-solid aluminum alloys, characterized in that, include: A lifting frame (6) is provided with a lifting component connected to it via a transmission mechanism. The lifting component is used to raise or lower the height of the lifting frame (6). The transmission assembly includes a gearbox (4) fixedly connected to the lifting frame (6), a planetary gear transmission mechanism is provided inside the gearbox (4), a driving component is connected between the input end of the planetary gear transmission mechanism and the gearbox (4), and a plurality of stirring components are connected to the output end of the planetary gear transmission mechanism. The plurality of stirring components are used to stir the semi-solid aluminum alloy melt. The gas-powder conveying assembly includes a gas-powder conveying device (19) and a degassing shaft (20) disposed in the planetary gear transmission mechanism. The bottom of the degassing shaft (20) is connected to a degassing head (22), which is located in the semi-solid aluminum alloy melt. The gas-powder conveying device (19) is connected to the degassing head (22) through the degassing shaft (20).

2. The stirring and degassing device for preparing semi-solid aluminum alloy according to claim 1, characterized in that: The planetary gear transmission mechanism includes a sun gear (14), a plurality of planetary gears (16), and an internal gear ring (13) fixedly connected in the gearbox (4). The axial direction of the internal gear ring (13) is arranged in the vertical direction. The sun gear (14) and the internal gear ring (13) are arranged on the same axis. The plurality of planetary gears (16) are arranged between the sun gear (14) and the internal gear ring (13), and the planetary gears (16) mesh with the sun gear (14) and the internal gear ring (13). The sun gear (14) is fixedly sleeved on the degassing shaft (20). The sun gear (14) is connected to the driving component through the degassing shaft (20). The plurality of stirring components are respectively connected to the plurality of planetary gears (16).

3. The stirring and degassing device for preparing semi-solid aluminum alloy according to claim 2, characterized in that: The gearbox (4) is horizontally rotatably connected to a gear carrier (17), and the sun gear (14) and several planetary gears (16) are rotatably connected to the gear carrier (17).

4. The stirring and degassing device for preparing semi-solid aluminum alloy according to claim 2, characterized in that: The stirring component includes a stirring shaft (7), the planetary gear (16) is fixedly sleeved on the top of the stirring shaft (7), and a stirring head (21) is fixedly connected to the bottom of the stirring shaft (7). The stirring head (21) is located in the semi-solid aluminum alloy melt.

5. The stirring and degassing device for preparing semi-solid aluminum alloy according to claim 1, characterized in that: The degassing shaft (20) has a channel along its axis. The bottom of the channel is connected to the degassing head (22). The top of the side wall of the degassing shaft (20) is also provided with several feed inlets (12) along the circumferential direction. The feed inlets (12) are connected to the channel. A material passage is provided between the feed inlets (12) and the gearbox (4). The gas powder conveying device (19) is connected to the feed inlets (12) through the material passage.

6. The stirring and degassing device for preparing semi-solid aluminum alloy according to claim 5, characterized in that: The material feeding device includes a pneumatic ring plug (10) fixedly connected inside the gearbox (4). The pneumatic ring plug (10) is sleeved on the degassing shaft (20), and a plurality of the feed inlets (12) are located inside the pneumatic ring plug (10). The air-powder conveying device (19) is connected to the inside of the pneumatic ring plug (10) through a pipeline.

7. The stirring and degassing device for preparing semi-solid aluminum alloy according to claim 1, characterized in that: The driving component includes a motor (1) that is vertically fixedly connected to the top of the gearbox (4), and the output shaft of the motor (1) is fixedly connected to the top of the degassing shaft (20) along the same axis.

8. The stirring and degassing device for preparing semi-solid aluminum alloys according to claim 1, characterized in that: The lifting component includes several lifting screws (8), which are vertically rotatably connected to several lifting seats (9). The side of the lifting frame (6) is connected to the several lifting screws (8) in a transmission connection, and one end of each of the several lifting screws (8) is connected to a rotating drive component in a transmission connection.

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