Non-ferrous metal alloy material casting, smelting and degassing equipment

Abstract

A non-ferrous metal alloy material casting smelting degassing device comprises a smelting furnace, a motor is arranged at the top of the smelting furnace, a first bevel gear is further fixed to an output shaft of the motor, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected with a rotating shaft, and the rotating shaft is fixedly connected with the smelting furnace. The rotating shaft is connected with a lifting sleeve through a connecting rod mechanism; the lifting sleeve is sleeved outside the stirring shaft and is in sliding connection with the stirring shaft; an air cavity is formed in the lifting sleeve, the upper end of the air cavity is communicated with an air source, and the lower end of the air cavity is communicated with an air outlet mechanism. According to the utility model, the bevel gear structure is matched with the connecting rod mechanism, so that the phenomenon of clamping stagnation or pause is avoided, gas in the gas cavity can be more uniformly released in different depth directions, and the quality of subsequent casting products is improved; only one motor is adopted as a driving part, the manufacturing cost of equipment is reduced, and energy is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal casting smelting technical field, specifically, relate to a non ferrous metal alloy material casting smelting degassing equipment. BACKGROUND

[0002] Casting and smelting are two important process steps in metal processing, and smelting is usually a pre-process of casting. The metal or alloy liquid obtained by smelting is the raw material required for casting, therefore, the quality of the metal or alloy liquid obtained by smelting has a direct impact on the quality of the castings. If the metal liquid contains excessive gas impurities, various defects such as pores, shrinkage holes and inclusions will appear in the castings, which will significantly reduce the quality of the castings.

[0003] Chinese patent CN111020247A discloses "a non ferrous metal alloy material casting smelting degassing equipment", and the technical defects of the patent are: the patent adopts cam mechanism and reset mechanism as the core components of the sliding shaft, which is easy to be affected by factors such as wear and deformation under long-time high-load operation, resulting in unstable movement or jamming phenomenon, which affects the effective stirring and gas release of the degassing device in the liquid aluminum alloy, and also makes the gas distribute unevenly in the aluminum alloy melt, reducing the quality of the subsequent metal casting products. In addition, the present scheme adopts two independent transmission systems to drive each functional component, which increases the complexity and manufacturing cost of the equipment.

[0004] This is the deficiency of the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems in the above background art, and further provides a non ferrous metal alloy material casting smelting degassing equipment.

[0006] The utility model solves the technical problems by adopting the technical scheme of: a non ferrous metal alloy material casting smelting degassing equipment, which comprises a smelting furnace, a motor is arranged at the top of the smelting furnace, the output shaft of the motor is fixedly connected with a stirring shaft in the smelting furnace, a stirring paddle is fixed on the stirring shaft, a first bevel gear is further fixed on the output shaft of the motor, the first bevel gear is engaged with a second bevel gear, the second bevel gear is fixedly connected with a rotating shaft, the rotating shaft is connected with a lifting sleeve through a connecting rod mechanism, the lifting sleeve is sleeved outside the stirring shaft and is slidingly connected with the stirring shaft; a gas cavity is arranged in the lifting sleeve, the upper end of the gas cavity is communicated with a gas source, and the lower end of the gas cavity is communicated with a gas outlet mechanism.

[0007] Further improvement of the utility model is that the rotating shaft is rotatably connected with a fixed rod, and the upper end of the fixed rod is fixed with a mounting plate.

[0008] The further improvement of the utility model still has, the connecting rod mechanism includes rotating lever and swing lever, one end of rotating shaft away from the second bevel gear is fixedly connected with the rotating lever, the lower end of rotating lever is rotatably connected with the swing lever, the lower end of swing lever is rotatably connected with the lifting sleeve.

[0009] The further improvement of the utility model still has, the lower end of lifting sleeve is provided with lower limit hole, guide sleeve is fixedly arranged in the lower limit hole, the guide sleeve is sleeved on the stirring shaft and is slidably connected with the stirring shaft.

[0010] The further improvement of the utility model still has, the top of smelting furnace is fixed with two support beams, the upper portion of support beam is fixed with mounting plate through long bolt, the upper portion of mounting plate is fixed with motor through bolt.

[0011] The further improvement of the utility model still has, the support beam adopts I-shaped steel.

[0012] The further improvement of the utility model still has, the air outlet mechanism includes air outlet pipe, one end of air outlet pipe is communicated with air cavity, the other end of air outlet pipe is provided with sealing plate, the pipe wall of air outlet pipe is uniformly provided with multiple air outlet holes.

[0013] The utility model discloses the beneficial effect is: the utility model discloses the bevel gear structure and connecting rod mechanism cooperation, realize the lifting sleeve's rise and drop, this compares with prior art, the utility model discloses when running is more stable, will not appear the card stagnation or stop phenomenon, makes the lifting sleeve can continuously rise and drop, the gas in the air cavity can be more evenly released in different depth directions, and then can more completely remove the hydrogen in metal solution, improves the quality of subsequent cast product, in addition, the application adopts one motor to realize the rotation of stirring shaft and the rise and drop of two actions of lifting sleeve, reduces the manufacturing cost of equipment, saves the energy. ACCURACY OF DRAWINGS

[0014] Figure 1 For the structure schematic diagram of the embodiment of the utility model,

[0015] Figure 2 For the enlarged view of the structure of the utility model A place,

[0016] Figure 3 For the structure schematic diagram of the connecting rod mechanism of the utility model,

[0017] Figure 4 For the enlarged view of the structure of the utility model B place.

[0018] In the diagram, 1 is the smelting furnace, 2 is the electric motor, 3 is the stirring shaft, 4 is the stirring paddle, 5 is the first bevel gear, 6 is the second bevel gear, 7 is the rotating shaft, 8 is the linkage mechanism, 81 is the rotating rod, 82 is the swing rod, 9 is the lifting sleeve, 91 is the air chamber, 92 is the lower limit hole, 10 is the air outlet mechanism, 101 is the air outlet, 102 is the sealing plate, 11 is the fixing rod, 12 is the mounting plate, 13 is the guide sleeve, 14 is the support beam, 15 is the long bolt, and 16 is the bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0020] like Figures 1-4 As shown, a degassing device for casting and smelting non-ferrous metal alloy materials includes a smelting furnace 1. An electric motor 2 is installed on the top of the smelting furnace 1. The output shaft of the electric motor 2 is fixedly connected to a stirring shaft 3 inside the smelting furnace 1. A stirring paddle 4 is fixed on the stirring shaft 3. When the electric motor 2 rotates, it drives the stirring shaft 3 and the stirring paddle 4 to rotate, thereby stirring the liquid metal in the smelting furnace 1.

[0021] The output shaft of the motor 2 is also fixed with a first bevel gear 5, which meshes with a second bevel gear 6. The second bevel gear 6 is fixedly connected to a rotating shaft 7. The rotating shaft 7 is connected to a lifting sleeve 9 via a linkage mechanism 8. The lifting sleeve 9 is sleeved on the outside of the stirring shaft 3 and is slidably connected to the stirring shaft 3. Specifically, the linkage mechanism 8 includes a rotating rod 81 and a swing rod 82. One end of the rotating shaft 7 away from the second bevel gear 6 is fixedly connected to the rotating rod 81. The lower end of the rotating rod 81 is rotatably connected to the swing rod 82, and the lower end of the swing rod 82 is rotatably connected to the lifting sleeve 9. When the motor 2 rotates, it drives the first bevel gear 5 to rotate, and the first bevel gear 5 meshes with the second bevel gear 6, thereby causing the second bevel gear 6 to rotate. The rotation of the second bevel gear 6 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the rotating rod 81 to rotate, causing the swing rod 82 to swing. The swinging motion of the swing rod 82 causes the lifting sleeve 9 to move up and down along the stirring shaft 3.

[0022] Specifically, the rotating rod 81 and the swing rod 82 are rotatably connected by a pin, and the swing rod 82 and the lifting sleeve 9 are rotatably connected by a pin.

[0023] Furthermore, the rotating shaft 7 is rotatably connected to the fixed rod 11, and the upper end of the fixed rod 11 is fixed to the mounting plate 12.

[0024] Furthermore, the lifting sleeve 9 is provided with an air chamber 91. The upper end of the air chamber 91 is connected to an air source, and the lower end of the air chamber 91 is connected to the air outlet mechanism 10. The air source can be connected to the air chamber 91 through a gas pipeline, and inert gas is introduced into the air chamber 91 through the air source. The inert gas passes through the air chamber 91 and the air outlet mechanism 10 in sequence and is sprayed into the molten metal. Specifically, the air outlet mechanism 10 includes an air outlet pipe. One end of the air outlet pipe is connected to the air chamber 91, and the other end of the air outlet pipe is provided with a sealing plate 102. Multiple air outlet holes 101 are evenly arranged on the pipe wall of the air outlet pipe. The inert gas in the air source flows into the air outlet holes 101 of the spraying mechanism through the air chamber 91, and then is sprayed into the molten metal. In order to improve the spraying effect, the shape of the air outlet hole 101 in this utility model is set such that the diameter of the air outlet hole 101 gradually decreases along the flow direction of the inert gas. In this application, the air outlet hole 101 can be trapezoidal or conical.

[0025] Furthermore, the lower end of the lifting sleeve 9 is provided with a lower limit hole 92, and a guide sleeve 13 is fixed inside the lower limit hole 92. The guide sleeve 13 is sleeved on the stirring shaft 3 and slidably connected to the stirring shaft 3. As an intermediate connecting part between the rotating shaft and the lifting sleeve, the guide sleeve can ensure that the lifting sleeve can stably rise and fall along the rotating shaft.

[0026] To ensure a secure installation of the electric motor 2, two support beams 14 are fixed to the top of the smelting furnace 1 described in this application. The upper part of the support beams 14 is fixed to the mounting plate 12 by long bolts 15, and the upper part of the mounting plate 12 is fixed to the electric motor 2 by bolts 16. Specifically, the support beams 14 are made of I-beams.

[0027] The working principle of this utility model is as follows: When the motor 2 is turned on, the motor 2 drives the stirring shaft 3 and the stirring paddle 4 to rotate, stirring the molten metal in the melting furnace 1; when the motor 2 rotates, it simultaneously drives the first bevel gear 5 and the second bevel gear 6 to rotate, causing the rotating rod 81 to rotate and the swing rod 82 to swing, which in turn drives the lifting sleeve 9 to move up and down along the stirring shaft 3. At the same time, inert gas is continuously introduced into the air chamber 91 of the lifting sleeve 9, so that the inert gas comes into contact with the molten metal at different depths and removes the gas in the molten metal.

[0028] This invention employs a bevel gear structure in conjunction with a linkage mechanism to achieve the raising and lowering of the lifting sleeve. Compared with existing technologies, this invention is more stable during operation, without jamming or stopping, allowing the lifting sleeve to rise and fall continuously. This enables the gas in the gas chamber to be released more evenly at different depths, thereby more completely removing hydrogen from the molten metal and improving the quality of subsequent casting products. In addition, this application uses a single electric motor to achieve both the rotation of the stirring shaft and the raising and lowering of the lifting sleeve, reducing equipment manufacturing costs and saving energy.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A degassing device for casting and smelting non-ferrous metal alloy materials, comprising a smelting furnace, wherein an electric motor is mounted on the top of the smelting furnace, the output shaft of the electric motor is fixedly connected to a stirring shaft inside the smelting furnace, and a stirring paddle is fixed on the stirring shaft, characterized in that, The output shaft of the motor is also fixed with a first bevel gear, which meshes with a second bevel gear. The second bevel gear is fixedly connected to a rotating shaft. The rotating shaft is connected to a lifting sleeve through a linkage mechanism. The lifting sleeve is sleeved on the outside of the stirring shaft and is slidably connected to the stirring shaft. An air chamber is provided inside the lifting sleeve. The upper end of the air chamber is connected to an air source, and the lower end of the air chamber is connected to an air outlet mechanism.

2. The degassing equipment for casting and smelting non-ferrous metal alloy materials according to claim 1, characterized in that, The rotating shaft is rotatably connected to the fixed rod, and the upper end of the fixed rod is fixed to the mounting plate.

3. A degassing device for casting and smelting non-ferrous metal alloy materials according to claim 1 or 2, characterized in that, The linkage mechanism includes a rotating rod and a swing rod; one end of the rotating shaft away from the second bevel gear is fixedly connected to the rotating rod, the lower end of the rotating rod is rotatably connected to the swing rod, and the lower end of the swing rod is rotatably connected to the lifting sleeve.

4. The degassing equipment for casting and smelting non-ferrous metal alloy materials according to claim 3, characterized in that, The lower end of the lifting sleeve is provided with a lower limit hole, and a guide sleeve is fixed in the lower limit hole. The guide sleeve is sleeved on the stirring shaft and slidably connected to the stirring shaft.

5. The degassing equipment for casting and smelting non-ferrous metal alloy materials according to claim 1, characterized in that, The top of the smelting furnace is fixed with two support beams. The upper part of the support beams is fixed to the mounting plate by long bolts, and the upper part of the mounting plate is fixed to the motor by bolts.

6. The degassing equipment for casting and smelting non-ferrous metal alloy materials according to claim 5, characterized in that, The supporting beam is made of I-beams.

7. The degassing equipment for casting and smelting non-ferrous metal alloy materials according to claim 1, characterized in that, The air outlet mechanism includes an air outlet pipe, one end of which is connected to the air chamber, and the other end of which is provided with a sealing plate. Multiple air outlet holes are evenly arranged on the pipe wall of the air outlet pipe.

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