Multifunctional degassing machine for aluminum alloy impeller production

Abstract

The utility model discloses a multifunctional degassing machine for aluminum alloy impeller production, relates to the technical field of degassing machines, and aims to solve the problems that in the prior art, when degassing work is carried out on a large batch of molten aluminum, a large amount of time is wasted during injection and discharge of the molten aluminum, and the degassing efficiency is low. A plate groove is formed in the upper end face of the bottom box, a flat plate is arranged in the plate groove, degassing boxes are symmetrically and fixedly installed on the two sides of the upper portion of the flat plate correspondingly, a driving cavity is formed in the bottom box along the lower portion of the plate groove, a hydraulic cylinder is arranged in the driving cavity, and the hydraulic cylinder is fixedly connected with the bottom box through screws. A connecting block is installed on one side of the hydraulic cylinder, the piston rod end of the hydraulic cylinder is fixedly connected with the connecting block, the connecting block is fixedly connected with the flat plate through screws, a degassing cavity is formed in the degassing box, and a heating cavity is formed in the degassing box along the outer side of the degassing cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of degassing machines, in particular to a multifunctional degassing machine for producing aluminum alloy impellers. Background Art

[0002] Aluminum alloy impellers are generally wheels equipped with moving blades. They are cast from aluminum liquid during production. A degasser is required for the preparation of aluminum liquid. The degasser is a pollution-free, green aluminum liquid purification and treatment equipment used to degas the product. The principle of the degasser is to use a graphite rotor that rotates at high speed and sprays inert gas to break up large inert gas bubbles into very fine small bubbles and evenly disperse them in the metal liquid. By reducing the bubble diameter, the total surface area of ​​these bubbles increases dramatically, which allows more inert bubble surfaces to contact hydrogen and impurities in the metal liquid, thereby bringing these harmful substances to the liquid surface.

[0003] For example, the authorized patent with the publication number CN211546639U (a hanging degasser for impeller production) includes an operating platform, a supporting platform, a degassing box on the supporting platform, and a graphite rotor in the degassing box, and also includes a rotating motor for driving the graphite rotor to rotate, the rotating shaft of the rotating motor extends from the top of the degassing box into the interior of the degassing box and is fixedly connected to the graphite rotor, the rotating motor is provided with a surrounding edge, the graphite rotor is a hollow structure, the surface of the graphite rotor is provided with a plurality of evenly distributed air distribution holes, and a gas transmission pipe is also provided in the surrounding edge;

[0004] Although the above-mentioned prior art is convenient for breaking up the large bubbles of lazy gas and improves the breaking up effect, in the process of degassing the aluminum liquid, a single degassing box is used, which has low functionality, so that the injection and discharge of the aluminum liquid will waste a lot of time, and then the degassing efficiency is low when degassing large quantities of aluminum liquid. Therefore, the market urgently needs to develop a multifunctional degassing machine for aluminum alloy impeller production to help people solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a multifunctional degasser for aluminum alloy impeller production, so as to solve the problem proposed in the above background technology that when degassing large quantities of molten aluminum, the injection and discharge of molten aluminum will waste a lot of time and the degassing efficiency is low.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multifunctional degassing machine for aluminum alloy impeller production, comprising a bottom box, a plate groove is arranged on the upper end surface of the bottom box, a flat plate is arranged inside the plate groove, degassing boxes are symmetrically fixedly installed on both sides above the flat plate, a driving cavity is arranged inside the bottom box along the bottom of the plate groove, a hydraulic cylinder is arranged inside the driving cavity, and the hydraulic cylinder is fixedly connected to the bottom box by screws, a connecting block is installed on one side of the hydraulic cylinder, and the piston rod end of the hydraulic cylinder is fixedly connected to the connecting block, and the connecting block is fixedly connected to the flat plate by screws.

[0007] Preferably, a degassing cavity is provided inside the degassing box, a heating cavity is provided inside the degassing box along the outside of the degassing cavity, an electric heating tube is provided inside the heating cavity, and the electric heating tube is spirally arranged, and a thermocouple thermometer is provided at the bottom of the degassing cavity.

[0008] Preferably, a vertical plate is fixedly installed at the rear end in the middle of the top of the bottom box, a screw box is fixedly installed at the front end of the vertical plate, a mounting plate is provided at the front end of the screw box, a box cover is fixedly installed below the mounting plate, and a graphite rotor is provided below the box cover.

[0009] Preferably, a protective cover is fixedly installed above the mounting plate, an air pipe is arranged inside the protective cover, the lower end of the air pipe passes through the mounting plate and the box cover and is fixedly connected to the graphite rotor through a joint, the air pipe is rotatably connected to the mounting plate through a bearing, and an air supply hose is fixedly installed above the air pipe through a rotating joint.

[0010] Preferably, a first gear is fixedly installed on the outer side of the gas pipe, a second gear is provided on one side of the first gear, and the first gear is meshed with the second gear, a second motor is provided on one side of the second gear, and the output end of the second motor is fixedly connected to the second gear.

[0011] Preferably, a screw cavity is provided inside the screw box, a ball screw is provided inside the screw cavity, and the ball screw is rotatably connected to the screw box, a lifting block is slidably installed on the outer side of the ball screw through a ball nut, a connecting plate is fixedly installed on one side of the lifting block, and the connecting plate and the mounting plate are fixedly connected by screws.

[0012] Preferably, a first motor is fixedly mounted above the screw box, and an output end of the first motor is fixedly connected to the ball screw.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a horizontally movable flat plate on the upper end surface of the bottom box, and two degassing boxes are arranged above the flat plate, so that when the aluminum liquid used as the raw material for the production of aluminum alloy impellers is degassed, while the aluminum liquid is added to one degassing box for degassing, the degassed aluminum liquid in the other degassing box can be discharged and the aluminum liquid to be degassed can be injected again. By using the two degassing boxes alternately, the injection and discharge time of the aluminum liquid can be saved, which is beneficial to improving the degassing efficiency of large quantities of aluminum liquid. By setting the hydraulic cylinder, the flat plate can be automatically driven to move the two degassing boxes, which is convenient for the two degassing boxes to exchange workstations, thereby increasing the functionality of the degasser and improving the practicability of the degasser.

[0015] 2. The utility model provides a heating chamber inside the degassing box and an electric heating tube inside the heating chamber, so that the aluminum liquid inside the degassing box can be insulated to prevent the temperature of the aluminum liquid from dropping too much, which is beneficial to the stable degassing of the aluminum liquid. The temperature of the aluminum liquid inside the degassing box can be monitored by the thermocouple thermometer, realizing the online temperature detection capability during the degassing process of the aluminum liquid and increasing the functionality of the degasser.

[0016] 3. The utility model adopts a screw box. After the first motor starts to drive the ball screw to rotate, the lifting block can drive the graphite rotor to move up and down through the transmission of the connecting plate, so that the graphite rotor can be lifted and removed from the degassing box after the degassing of aluminum liquid is completed, which is beneficial to the double-station stable filtrate degassing work of the degasser and improves the practicability of the degasser. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a multifunctional degasser for producing aluminum alloy impellers of the utility model;

[0018] Figure 2 It is a cross-sectional view of the bottom box of the utility model;

[0019] Figure 3 It is a cross-sectional view of the degassing box of the utility model;

[0020] Figure 4 It is a side sectional view of the screw box of the utility model;

[0021] Figure 5 It is a cross-sectional view of the mounting plate, protective cover and box cover of the utility model.

[0022] In the figure: 1. bottom box; 2. degassing box; 3. vertical plate; 4. screw box; 5. first motor; 6. mounting plate; 7. protective cover; 8. box cover; 9. graphite rotor; 10. plate slot; 11. flat plate; 12. drive chamber; 13. connecting block; 14. hydraulic cylinder; 15. degassing chamber; 16. heating chamber; 17. electric heating tube; 18. thermocouple thermometer; 19. screw chamber; 20. ball screw; 21. lifting block; 22. connecting plate; 23. gas pipe; 24. gas supply hose; 25. first gear; 26. second gear; 27. second motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-5 The utility model provides an embodiment: a multifunctional degassing machine for aluminum alloy impeller production, including a bottom box 1, a plate groove 10 is arranged on the upper end surface of the bottom box 1, a flat plate 11 is arranged inside the plate groove 10, and a degassing box 2 is symmetrically fixedly installed on both sides above the flat plate 11, a driving chamber 12 is arranged inside the bottom box 1 along the bottom of the plate groove 10, a hydraulic cylinder 14 is arranged inside the driving chamber 12, the hydraulic cylinder 14 is externally connected to a hydraulic oil pumping device, and the hydraulic cylinder 14 is fixedly connected to the bottom box 1 by screws, a connecting block 13 is installed on one side of the hydraulic cylinder 14, and the piston rod end of the hydraulic cylinder 14 is fixedly connected to the connecting block 13, and the connecting block 13 is fixedly connected to the flat plate 11 by screws.

[0025] During use, when the aluminum liquid used as the raw material for producing aluminum alloy impellers is degassed, while the aluminum liquid is added to a degassing box 2 for degassing, the degassed aluminum liquid in the other degassing box 2 can be discharged and then injected with the aluminum liquid to be degassed. By alternating the two degassing boxes 2, the injection and discharge time of the aluminum liquid can be saved, which is beneficial to improving the degassing efficiency of large quantities of aluminum liquid. Through the setting of the hydraulic cylinder 14, the flat plate can be automatically driven to move the two degassing boxes 2, which facilitates the exchange of the two degassing boxes, increases the functionality of the degasser, and improves the practicability of the degasser.

[0026] Furthermore, a degassing chamber 15 is provided inside the degassing box 2, a heating chamber 16 is provided inside the degassing box 2 along the outer side of the degassing chamber 15, an electric heating tube 17 is provided inside the heating chamber 16, and the electric heating tube 17 is spirally arranged. The arrangement of the electric heating tube 17 enables the aluminum liquid inside the degassing box 2 to be heat-insulated, and a thermocouple thermometer 18 is provided at the bottom of the degassing chamber 15. The thermocouple thermometer 18 is a WRN-431NM thermocouple thermometer, which can monitor the temperature of the aluminum liquid inside the degassing box 2, thereby realizing the online temperature detection capability during the degassing process of the aluminum liquid and increasing the functionality of the degasser.

[0027] Furthermore, a vertical plate 3 is fixedly installed at the rear end in the middle of the upper part of the bottom box 1, a screw box 4 is fixedly installed at the front end of the vertical plate 3, a mounting plate 6 is provided at the front end of the screw box 4, a box cover 8 is fixedly installed below the mounting plate 6, a through hole is provided inside the box cover 8 to facilitate gas circulation, a graphite rotor 9 is provided below the box cover 8, and the box cover 8 can be covered on the degassing box 2 to prevent splashing of aluminum liquid during the degassing process, thereby increasing practicality.

[0028] Furthermore, a protective cover 7 is fixedly installed above the mounting plate 6, and an air pipe 23 is arranged inside the protective cover 7. The lower end of the air pipe 23 passes through the mounting plate 6 and the box cover 8 and is fixedly connected to the graphite rotor 9 through a joint. The air pipe 23 is communicated with the air holes inside the graphite rotor 9, and the air pipe 23 is rotatably connected to the mounting plate 6 through a bearing. A gas supply hose 24 is fixedly installed above the gas pipe 23 through a rotating joint, and the gas supply hose 24 is externally connected to an inert gas high-pressure supply device, which is convenient for conveying inert gas into the graphite rotor 9 to degas the aluminum liquid.

[0029] Furthermore, a first gear 25 is fixedly installed on the outer side of the air delivery pipe 23, a second gear 26 is arranged on one side of the first gear 25, and the first gear 25 is meshingly connected with the second gear 26. The first gear 25 and the second gear 26 are both arranged as helical gears, and a second motor 27 is arranged on one side of the second gear 26. The output end of the second motor 27 is fixedly connected to the second gear 26, so that the second motor 27 can drive the second gear 26 to rotate, and a plate seat fixedly connected to the protective cover 7 is arranged below the second motor 27 to facilitate the installation and fixation of the second motor 27.

[0030] Furthermore, a screw cavity 19 is provided inside the screw box 4, a ball screw 20 is provided inside the screw cavity 19, and the ball screw 20 is rotatably connected to the screw box 4, a lifting block 21 is slidably installed on the outer side of the ball screw 20 through a ball nut, a connecting plate 22 is fixedly installed on one side of the lifting block 21, and the connecting plate 22 is fixedly connected to the mounting plate 6 by screws, and a first motor 5 is fixedly installed above the screw box 4, and an output end of the first motor 5 is fixedly connected to the ball screw 20, so that when the first motor 5 is started, the ball screw 20 can be driven to rotate, and then through the transmission of the connecting plate 22, the lifting block 21 can drive the mounting plate 6 to move downward, so that the graphite rotor 9 can be moved down into the degassing box 2 for degassing.

[0031] Working principle: When in use, when degassing the aluminum liquid used as the raw material for producing aluminum alloy impellers, the hydraulic cylinder 14 drives the flat plate 11 to move, so that a degassing box 2 moves to the bottom of the box cover 8, and then the aluminum liquid is injected into the degassing box 2. The electric heating tube 17 is energized to keep the aluminum liquid warm. The first motor 5 is started to drive the ball screw 20 to rotate. Through the transmission of the connecting plate 22, the lifting block 21 can drive the mounting plate 6 to move downward, so that the graphite rotor 9 moves into the degassing box 2, and the box cover 8 is covered on the top of the degassing box 2. Then the second motor 27 is started, and the gas pipe 23 drives the graphite rotor through the meshing transmission of the gears. 9 rotates, and an external inert gas high-pressure supply device delivers inert gas to the graphite rotor 9 through a gas supply hose 24 and a gas delivery pipe 23. Then, under the high-speed rotation of the graphite rotor and the action of spraying inert gas, the inert gas is broken up into very fine bubbles. By reducing the bubble diameter, the total surface area of ​​these bubbles increases sharply, so that the surface of the inert bubbles contacts the hydrogen and impurities in the molten metal, thereby bringing these harmful substances to the surface of the liquid. At the same time, aluminum liquid is injected into another degassing box 2. By alternately using the two degassing boxes 2, the injection and discharge time of aluminum liquid can be saved, which is beneficial to improving the degassing efficiency of large quantities of aluminum liquid.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A multifunctional degassing machine for producing aluminum alloy impellers, comprising a bottom box (1), Features: A plate groove (10) is provided on the upper end surface of the bottom box (1), a plate (11) is provided inside the plate groove (10), a degassing box (2) is symmetrically fixedly installed on both sides above the plate (11), a driving chamber (12) is provided inside the bottom box (1) along the bottom of the plate groove (10), a hydraulic cylinder (14) is provided inside the driving chamber (12), and the hydraulic cylinder (14) is fixedly connected to the bottom box (1) by screws, a connecting block (13) is installed on one side of the hydraulic cylinder (14), and the piston rod end of the hydraulic cylinder (14) is fixedly connected to the connecting block (13), and the connecting block (13) is fixedly connected to the plate (11) by screws.

2. A multifunctional degasser for producing aluminum alloy impellers according to claim 1, Features: A degassing chamber (15) is arranged inside the degassing box (2), a heating chamber (16) is arranged inside the degassing box (2) along the outer side of the degassing chamber (15), an electric heating tube (17) is arranged inside the heating chamber (16), and the electric heating tube (17) is arranged in a spiral shape, and a thermocouple thermometer (18) is arranged at the bottom of the degassing chamber (15).

3. A multifunctional degasser for producing aluminum alloy impellers according to claim 1, Features: A vertical plate (3) is fixedly mounted at the rear end of the middle of the upper part of the bottom box (1), a screw box (4) is fixedly mounted at the front end of the vertical plate (3), a mounting plate (6) is provided at the front end of the screw box (4), a box cover (8) is fixedly mounted below the mounting plate (6), and a graphite rotor (9) is provided below the box cover (8).

4. A multifunctional degasser for producing aluminum alloy impellers according to claim 3, Features: A protective cover (7) is fixedly mounted above the mounting plate (6), an air supply pipe (23) is arranged inside the protective cover (7), the lower end of the air supply pipe (23) passes through the mounting plate (6) and the box cover (8) and is fixedly connected to the graphite rotor (9) via a joint, the air supply pipe (23) is rotatably connected to the mounting plate (6) via a bearing, and an air supply hose (24) is fixedly mounted above the air supply pipe (23) via a rotating joint.

5. A multifunctional degasser for producing aluminum alloy impellers according to claim 4, Features: A first gear (25) is fixedly mounted on the outer side of the gas delivery pipe (23); a second gear (26) is provided on one side of the first gear (25), and the first gear (25) and the second gear (26) are meshingly connected; a second motor (27) is provided on one side of the second gear (26); an output end of the second motor (27) is fixedly connected to the second gear (26).

6. A multifunctional degasser for producing aluminum alloy impellers according to claim 3, Features: A screw cavity (19) is provided inside the screw box (4), a ball screw (20) is provided inside the screw cavity (19), and the ball screw (20) is rotatably connected to the screw box (4), a lifting block (21) is slidably mounted on the outer side of the ball screw (20) via a ball nut, a connecting plate (22) is fixedly mounted on one side of the lifting block (21), and the connecting plate (22) is fixedly connected to the mounting plate (6) via screws.

7. A multifunctional degasser for producing aluminum alloy impellers according to claim 6, Features: A first motor (5) is fixedly mounted above the screw box (4), and an output end of the first motor (5) is fixedly connected to the ball screw (20).

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