Stirring device of cast aluminum alloy smelting furnace

Abstract

The utility model discloses a cast aluminum alloy smelting furnace stirring device which comprises a sealing cover, the upper side wall of the sealing cover is fixedly connected with a driving motor and a transmission case, the output end of the transmission case is fixedly connected with a transmission rod, and the outer side wall of the transmission rod is fixedly connected with a plurality of inclined stirring rods and transverse stirring rods; an inner partition plate is fixedly connected to the lower side wall of the sealing cover, a splash-proof plate is fixedly connected to the inner side of the inner partition plate, an air outlet valve is fixedly connected to the interior of the sealing cover, an air outlet hole is formed in the outer side wall, close to the upper side, of the air outlet valve, and an air inlet hole is formed in the outer side wall, close to the lower side, of the air outlet valve. And the interior of the air outlet valve is slidably connected with a sliding piston. According to the utility model, the inclined stirring rod and the transverse stirring rod can effectively stir molten aluminum, so that the uniformity and the stability of a melt in the cast aluminum alloy smelting furnace can be effectively improved, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy processing, in particular to a stirring device for a casting aluminum alloy melting furnace. Background Art

[0002] The production of investment casting aluminum alloys generally involves adding masterbatch and other alloys into a melting furnace for smelting, thereby producing alloy products that meet material requirements. During the smelting and casting process of aluminum alloys, a large amount of hydrogen will dissolve in the aluminum alloy liquid, and impurities in the masterbatch and other alloys will continue to precipitate. If the impurities and hydrogen are not thoroughly cleaned, pinholes and slag inclusions will form on the surface of the cast product, resulting in adverse effects on the surface quality of the product.

[0003] At present, the industry mainly relies on tools to stir the aluminum alloy to make the aluminum alloy liquid move in the smelting furnace, so that the impurities float on the surface, and then use tools to remove the impurities. The existing stirring device does not stir the aluminum alloy liquid sufficiently, which affects the production quality of the aluminum alloy. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a stirring device for a casting aluminum alloy melting furnace, wherein the device is provided with a transmission rod, an oblique stirring rod and a horizontal stirring rod, which can effectively stir the aluminum liquid, thereby effectively improving the uniformity and stability of the melt in the casting aluminum alloy melting furnace, and improving product quality and production efficiency;

[0005] The device is provided with an exhaust valve. When the air pressure in the sealing cover and the smelting furnace increases, the high-pressure gas pushes the sliding piston upward through the air inlet hole, and is then discharged from the exhaust hole, thereby maintaining the internal air pressure of the device stable and improving the safety of the device.

[0006] The utility model also provides a stirring device for a casting aluminum alloy melting furnace, comprising: a sealing cover, the upper side wall of the sealing cover is fixedly connected to a driving motor and a transmission box, the output end of the transmission box is fixedly connected to a transmission rod, and the outer side wall of the transmission rod is fixedly connected to a plurality of oblique stirring rods and a horizontal stirring rod;

[0007] The lower side wall of the sealing cover is fixedly connected with an inner partition, the inner side of the inner partition is fixedly connected with a splash plate, the interior of the sealing cover is fixedly connected with an air outlet valve, the outer side wall of the air outlet valve is provided with an air outlet hole near the upper side, the outer side wall of the air outlet valve is provided with an air inlet hole near the lower side, and the interior of the air outlet valve is slidably connected with a sliding piston.

[0008] According to the stirring device for a casting aluminum alloy melting furnace, the output end of the driving motor and the input end of the transmission box are fixedly connected, and the driving motor can drive the transmission rod to rotate through the transmission box.

[0009] According to the stirring device for a casting aluminum alloy melting furnace, the diameters of the oblique stirring rod and the horizontal stirring rod gradually decrease from one end close to the transmission rod to the other end, so as to facilitate cleaning of the solidified aluminum attached to the surface of the stirring rod.

[0010] According to the stirring device for a casting aluminum alloy melting furnace, a sealing gasket is fixedly connected to the inner side wall of the sealing cover to improve the sealing performance of the sealing cover.

[0011] According to the stirring device for a casting aluminum alloy melting furnace, the inner wall of the sealing cover is fixedly connected with a heat insulation plate, which can effectively alleviate the heat dissipation.

[0012] According to the stirring device for a casting aluminum alloy melting furnace, a reset spring is fixedly connected between the sliding piston and the upper side wall of the gas outlet valve to drive the sliding piston to reset.

[0013] According to the stirring device for a cast aluminum alloy melting furnace, the transmission rod and the sealing cover are rotatably connected to improve the rotation stability of the transmission rod.

[0014] According to the stirring device for a casting aluminum alloy melting furnace, the sealing cover is made of glass fiber material to improve the heat insulation effect of the sealing cover.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a structural schematic diagram of a stirring device for a casting aluminum alloy melting furnace according to the utility model;

[0018] Figure 2 It is a top view schematic diagram of a stirring device for a casting aluminum alloy melting furnace of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of a stirring device for a casting aluminum alloy melting furnace of the utility model;

[0020] Figure 4 It is a front schematic diagram of a stirring device for a casting aluminum alloy melting furnace according to the utility model.

[0021] Legend:

[0022] 1. Sealing cover; 101. Inner partition; 1011. Splash plate; 102. Heat insulation board; 103. Sealing pad; 2. Driving motor; 201. Transmission box; 3. Exhaust valve; 301. Exhaust hole; 302. Inlet hole; 303. Sliding piston; 304. Return spring; 4. Transmission rod; 401. Oblique stirring rod; 402. Horizontal stirring rod. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model 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 of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Reference Figure 1-4 The utility model embodiment is a stirring device for a casting aluminum alloy melting furnace, which includes: a sealing cover 1, the upper side wall of the sealing cover 1 is fixedly connected with a driving motor 2 and a transmission box 201, the output end of the driving motor 2 is fixedly connected to the input end of the transmission box 201, the driving motor 2 can drive the transmission rod 4 to rotate through the transmission box 201, the inner side wall of the sealing cover 1 is fixedly connected with a sealing gasket 103 to improve the sealing performance of the sealing cover 1, the inner side wall of the sealing cover 1 is fixedly connected with a heat insulation board 102 to effectively alleviate the heat dissipation, and the sealing cover 1 is made of glass fiber material to improve the heat insulation effect of the sealing cover 1.

[0026] The output end of the transmission box 201 is fixedly connected to a transmission rod 4, and the outer wall of the transmission rod 4 is fixedly connected to a plurality of oblique stirring rods 401 and a horizontal stirring rod 402. The diameters of the oblique stirring rods 401 and the horizontal stirring rods 402 gradually decrease from one end close to the transmission rod 4 to the other end, so as to facilitate the cleaning of the solidified aluminum attached to the surface of the stirring rod 402. The transmission rod 4 is rotatably connected to the sealing cover 1 to improve the rotation stability of the transmission rod 4.

[0027] The lower side wall of the sealing cover 1 is fixedly connected with an inner partition 101, the inner side of the inner partition 101 is fixedly connected with a splash plate 1011, the inside of the sealing cover 1 is fixedly connected with an exhaust valve 3, the outer side wall of the exhaust valve 3 and near the upper side is provided with an exhaust hole 301, the outer side wall of the exhaust valve 3 and near the lower side is provided with an exhaust hole 302, the inside of the exhaust valve 3 is slidably connected with a sliding piston 303, and a reset spring 304 is fixedly connected between the sliding piston 303 and the upper side wall of the exhaust valve 3 to drive the sliding piston 303 to reset.

[0028] The electrical components appearing in this article are all electrically connected to an external main controller, and the main controller can be a conventional known device for control such as a computer, and the electrical components appearing in this article are all electrically connected to an external power supply.

[0029] Working principle: When the device is used, first, the sealing cover 1 is put into the smelting furnace, the sealing gasket 103 can effectively improve the sealing effect between the sealing cover 1 and the smelting furnace, and the inner partition 101 cooperates with the inner wall of the smelting furnace. Then, the driving motor 2 can drive the transmission rod 4 to rotate through the transmission box 201, thereby driving the oblique stirring rod 401 and the horizontal stirring rod 402 to rotate to stir the aluminum liquid. During this period, the air pressure in the sealing cover 1 and the smelting furnace increases, and the high-pressure gas pushes the sliding piston 303 to move upward through the air inlet 302, thereby being discharged from the air outlet 301 to maintain the internal air pressure of the device stable.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A stirring device for a casting aluminum alloy melting furnace, characterized in that: include: A sealing cover (1), wherein the upper side wall of the sealing cover (1) is fixedly connected to a driving motor (2) and a transmission box (201), the output end of the transmission box (201) is fixedly connected to a transmission rod (4), and the outer side wall of the transmission rod (4) is fixedly connected to a plurality of oblique stirring rods (401) and a horizontal stirring rod (402); The lower side wall of the sealing cover (1) is fixedly connected to an inner partition (101), the inner side of the inner partition (101) is fixedly connected to a splash plate (1011), the interior of the sealing cover (1) is fixedly connected to an air outlet valve (3), an air outlet hole (301) is provided on the outer side wall of the air outlet valve (3) near the upper side, an air inlet hole (302) is provided on the outer side wall of the air outlet valve (3) near the lower side, and a sliding piston (303) is slidably connected to the interior of the air outlet valve (3).

2. A stirring device for a casting aluminum alloy melting furnace according to claim 1, characterized in that: The output end of the driving motor (2) and the input end of the transmission box (201) are fixedly connected.

3. The stirring device for a casting aluminum alloy melting furnace according to claim 1, characterized in that: The diameters of the oblique stirring rod (401) and the horizontal stirring rod (402) gradually decrease from one end close to the transmission rod (4) to the other end.

4. The stirring device for a casting aluminum alloy melting furnace according to claim 1, characterized in that: A sealing gasket (103) is fixedly connected to the inner side wall of the sealing cover (1).

5. The stirring device for a casting aluminum alloy melting furnace according to claim 1, characterized in that: A heat insulation board (102) is fixedly connected to the inner side wall of the sealing cover (1).

6. The stirring device for a casting aluminum alloy melting furnace according to claim 1, characterized in that: A return spring (304) is fixedly connected between the sliding piston (303) and the upper side wall of the air outlet valve (3).

7. The stirring device for a casting aluminum alloy melting furnace according to claim 1, characterized in that: The transmission rod (4) and the sealing cover (1) are rotationally connected.

8. The stirring device for a casting aluminum alloy melting furnace according to claim 1, characterized in that: The sealing cover (1) is made of glass fiber material.

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