A feeding device for neodymium iron boron smelting raw materials

Abstract

This utility model discloses a feeding device for NdFeB smelting raw materials, comprising a thin-walled barrel, a reinforcing frame, and a lifting clamp. The reinforcing frame is fixedly fitted onto the outer wall of the thin-walled barrel. At least two lifting holes are evenly distributed above the thin-walled barrel, and through holes corresponding to the lifting holes are formed on the reinforcing frame. The hook of the lifting clamp is movably engaged within the corresponding lifting holes and through holes. Beneficial effects: This utility model has a simple structure and is easy to implement, ensuring that the alloy raw materials fall stably and reliably into the smelting crucible, avoiding material waste, reducing production costs, and ensuring product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of neodymium iron boron preparation, and in particular to a feeding device for neodymium iron boron smelting raw materials. Background Technology

[0002] Neodymium iron boron (NdFeB), a rare earth permanent magnet alloy, is an important magnetic material, known as the "King of Magnets" due to its excellent magnetic properties. The preparation method for NdFeB involves first adding raw materials to a crucible in a melting furnace for smelting. The smelted raw materials are then poured from the crucible nozzle into the upper tundish of an intermediate ladle device, flowing to the lower tundish, and finally cast onto rotating cooling copper rollers through the outlet of the lower tundish. During this casting process, the melting chamber needs to be evacuated and filled with argon gas. After casting, the material undergoes powdering, molding, and sintering to obtain the NdFeB magnetic material. Currently, vacuum melting uses a secondary feeding method, requiring the alloy raw materials, contained in a charging bucket, to be added to the melting crucible under vacuum. When the charging bucket containing the alloy raw materials reaches above the melting crucible, a mechanical device is typically used to open the bottom of the charging bucket, allowing the alloy raw materials to fall into the melting crucible. In actual production, mechanical devices sometimes malfunction, causing them to open before reaching the correct position, resulting in material spillage and preventing all material from falling into the melting crucible. This leads to material waste and increases the company's production costs. Utility Model Content

[0003] The main purpose of this invention is to provide a feeding device for neodymium iron boron smelting raw materials, which ensures that the alloy raw materials fall stably and reliably into the smelting crucible, avoids material waste, reduces production costs, and ensures product quality.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a feeding device for neodymium iron boron smelting raw materials, comprising a thin-walled barrel, a reinforcing frame, and a lifting clamp; the reinforcing frame is fixedly fitted onto the outer wall of the thin-walled barrel, at least two lifting holes are evenly opened above the thin-walled barrel, and through holes corresponding to the lifting holes are opened on the reinforcing frame; the hook of the lifting clamp is movably engaged in the corresponding lifting hole and the through hole.

[0005] Furthermore, the reinforcing frame includes strip plates, with several vertically arranged strip plates evenly distributed around the thin-walled barrel. At least one reinforcing ring is sequentially fitted and fixed on the outside of the strip plates from top to bottom. An annular support plate is fixed at the bottom end of the strip plates below the thin-walled barrel, and the through hole is provided above the strip plates.

[0006] Furthermore, a support rib is fixed to the inner ring of the annular support plate.

[0007] Furthermore, both the thin-walled barrel and the reinforcing frame are made of pure iron.

[0008] Furthermore, the lifting fixture includes a bracket, a support, a guide rod, a slider, a conical sleeve, a guide sleeve, a lifting ring, a lifting claw, a chain, a connecting plate, and a lifting hook. The bracket is movably placed on the top of the thin-walled barrel. The support is fixed at the center of the bracket. The guide rod is coaxially fixed on the support. The slider, the conical sleeve, and the guide sleeve are arranged sequentially from bottom to top on the guide rod. The slider is slidably fitted on the guide rod. The conical sleeve is fixedly fitted on the guide rod. The guide sleeve is slidably fitted on the upper end of the guide rod. The lifting ring is rotatably arranged at the upper end of the guide sleeve. An ear plate corresponding to the lifting hole is fixed on the outer wall below the guide sleeve. A lifting claw is rotatably arranged on the side of the ear plate near the guide sleeve. The chain is rotatably arranged on the side of the ear plate away from the guide sleeve. One end of the chain is rotatably connected to the ear plate. The other end of the chain is rotatably connected to the connecting plate. A lifting hook is integrally formed on the other end of the connecting plate. The connection between the connecting plate and the lifting hook is rotatably arranged on the bracket.

[0009] Furthermore, both the upper and lower parts of the slider are tapered, and the maximum diameter of the slider is greater than the bottom diameter of the tapered sleeve.

[0010] This utility model has the following beneficial effects: 1. This utility model has a simple structure and is easy to implement. In the vacuum melting process of rare earth permanent magnet NdFeB alloy, a thin-walled barrel is used for feeding. Then, a lifting clamp lifts the thin-walled barrel together with the alloy raw material contained inside into the melting crucible. Then, the lifting clamp detaches from the lifting hole of the thin-walled barrel, realizing secondary feeding. This avoids the problem of material spillage due to mechanical device failure, ensures that the alloy raw material falls stably and reliably into the melting crucible, avoids material waste, and reduces production costs.

[0011] 2. The thin-walled barrel and the reinforcing frame are made of materials selected from rare earth permanent magnet alloy components (such as pure iron). After being smelted, they will not introduce other substances that affect the performance, thus ensuring the quality of the product.

[0012] 3. The lifting clamp is simple to manufacture and easy to operate on site, and is suitable for lifting and lowering thin-walled barrels in the high-temperature vacuum environment of this utility model. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0014] Figure 1 This is a schematic diagram of the overall structure of a feeding device for neodymium iron boron smelting raw materials according to the present invention.

[0015] Figure 2 for Figure 1 A cross-sectional view of section AA.

[0016] Figure 3 A structural diagram to reinforce the framework.

[0017] Figure 4 This is a schematic diagram illustrating the use of this utility model.

[0018] In the diagram: thin-walled barrel 1, lifting hole 11, reinforcing frame 2, strip plate 21, through hole 211, reinforcing ring 22, annular support plate 23, supporting rib plate 24, lifting clamp 3, bracket 301, support 302, guide rod 303, slider 304, conical sleeve 305, guide sleeve 306, lifting ring 307, lifting claw 308, chain 309, connecting plate 310, hook 311, ear plate 312. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described, making the technical means, creative features, and achieved objectives of this utility model easy to understand, and further elaborating on this utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-3 As shown, the technical solution adopted by this utility model is as follows: a feeding device for neodymium iron boron smelting raw materials, which includes a thin-walled barrel 1, a reinforcing frame 2, and a lifting clamp 3; the reinforcing frame 2 is fixedly fitted on the outer wall of the thin-walled barrel 1, and both the thin-walled barrel 1 and the reinforcing frame 2 are made of pure iron; at least two lifting holes 11 are evenly opened above the thin-walled barrel 1, and through holes 211 corresponding to the lifting holes 11 are opened on the reinforcing frame 2 to ensure that the lifting holes 11 on the thin-walled barrel 1 will not be damaged during lifting and the thin-walled barrel 1 will not fall; the hook 311 of the lifting clamp 3 is movably engaged in the corresponding lifting holes 11 and through holes 211.

[0023] The reinforcing frame 2 includes strip plates 21. Several vertically arranged strip plates 21 are evenly arranged around the thin-walled barrel 1. At least one reinforcing ring 22 is sequentially fitted and fixed on the outside of the strip plates 21 from top to bottom. An annular support plate 23 is fixed at the bottom end of the strip plates 21 below the thin-walled barrel 1. A through hole 211 is opened above the strip plates 21. A supporting rib plate 24 is fixed in the inner circle of the annular support plate 23.

[0024] The lifting clamp 3 includes a bracket 301, a support 302, a guide rod 303, a slider 304, a conical sleeve 305, a guide sleeve 306, a lifting ring 307, a lifting claw 308, a chain 309, a connecting plate 310, and a hook 311. The bracket 301 is movably placed on the top of the thin-walled barrel 1. The support 302 is fixed at the center of the bracket 301. The guide rod 303 is coaxially fixed on the support 302. The slider 304, the conical sleeve 305, and the guide sleeve 306 are arranged sequentially from bottom to top on the guide rod 303. The slider 304 is slidably sleeved on the guide rod 303, and the conical sleeve 305 is fixedly sleeved on the guide rod 303. The upper and lower parts of the slider 304 are both conical, and the maximum diameter of the slider 304 is larger than the bottom diameter of the conical sleeve 305.

[0025] The guide sleeve 306 is slidably sleeved on the upper end of the guide rod 303; a lifting ring 307 is rotatably provided on the upper end of the guide sleeve 306; an ear plate 312 corresponding to the lifting hole 11 is fixed on the outer wall below the guide sleeve 306; a lifting claw 308 is rotatably provided on the side of the ear plate 312 close to the guide sleeve 306; a chain 309 is rotatably provided on the side of the ear plate 312 away from the guide sleeve 306; one end of the chain 309 is rotatably connected to the ear plate 312; the other end of the chain 309 is rotatably connected to a connecting plate 310; the other end of the connecting plate 310 is integrally formed with a hook 311; the connection between the connecting plate 310 and the hook 311 is rotatably provided on the bracket 301.

[0026] Working principle: In the process of preparing rare earth permanent magnet alloys by vacuum melting, the thin-walled barrel 1 of this utility model is used for feeding. Then, the crane's lifting tool is connected to the lifting ring 307 at the top of the lifting clamp 3, the lifting claw 308 hooks the conical sleeve 305, and the connecting plate 310, hook 311 and chain 309 are in a slack state and not under force. The lifting clamp 3 is in a standby state at this time (e.g., Figure 4 (As shown). The lifting clamp 3 is placed inside the thin-walled barrel 1. The gantry crane moves downwards, and the lifting jaw 308 moves downwards along the upper conical surface of the slider 304, passing the highest point of the slider 304 and reaching the lower conical surface. Then the gantry crane lifts it upwards. Since the slider 304 is relatively light, the lifting jaw 308 hooks onto the slider 304 and moves upwards together. When the slider 304 touches the conical sleeve 305, the lifting jaw 308 continues to move upwards along the highest point of the slider 304, passing the conical sleeve 305 (as shown). Figure 1 (As shown). At this time, the guide sleeve 306 drives the chain 309, the connecting plate 310 and the hook 311. The connecting plate 310 and the hook 311 rotate along the pin on the bracket 301. The hook 311 is inserted into the lifting hole 11 and the through hole 211. At this time, the crane continues to rise, completing the lifting of the thin-walled barrel 1 containing the alloy raw materials. Then, the thin-walled barrel 1 is sent into the melting crucible in the vacuum melting chamber through the conveying mechanism. When the thin-walled barrel 1 reaches the bottom of the melting crucible, the crane continues to move downward. The lifting claw 308 moves downward along the conical surface of the conical sleeve 305. After passing the highest point of the conical sleeve 305, it reaches the bottom of the conical sleeve 305. The lifting claw 308 hooks the conical sleeve 305. Then the crane lifts upward. The hook 311 disengages from the lifting hole 11 and the through hole 211 and rises back, completing the feeding.

[0027] 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 embodiments and descriptions in the specification 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 the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for neodymium iron boron smelting raw materials, characterized in that, It includes a thin-walled barrel, a reinforcing frame, and a lifting clamp; the reinforcing frame is fixedly fitted onto the outer wall of the thin-walled barrel, and at least two lifting holes are evenly opened above the thin-walled barrel, and through holes corresponding to the lifting holes are opened on the reinforcing frame; the hook of the lifting clamp is movably engaged in the corresponding lifting hole and the through hole.

2. The feeding device for NdFeB smelting raw materials according to claim 1, characterized in that, The reinforcing frame includes strip plates, and several vertically arranged strip plates are evenly arranged around the thin-walled barrel. At least one reinforcing ring is fixedly fitted and fixed from top to bottom on the outside of the strip plates. An annular support plate is fixed at the bottom end of the strip plates below the thin-walled barrel. The through hole is opened above the strip plates.

3. The feeding device for NdFeB smelting raw materials according to claim 2, characterized in that, A supporting rib is fixed to the inner ring of the annular support plate.

4. A feeding device for neodymium iron boron smelting raw materials according to any one of claims 1-3, characterized in that, Both the thin-walled barrel and the reinforcing frame are made of pure iron.

5. The feeding device for NdFeB smelting raw materials according to claim 1, characterized in that, The lifting fixture includes a bracket, a support, a guide rod, a slider, a conical sleeve, a guide sleeve, a lifting ring, a lifting claw, a chain, a connecting plate, and a lifting hook. The bracket is movably placed on the top of the thin-walled barrel. The support is fixed at the center of the bracket. The guide rod is coaxially fixed on the support. The slider, the conical sleeve, and the guide sleeve are arranged sequentially from bottom to top on the guide rod. The slider is slidably fitted on the guide rod. The conical sleeve is fixedly fitted on the guide rod. The guide sleeve is slidably fitted on the upper end of the guide rod. The lifting ring is rotatably arranged at the upper end of the guide sleeve. An ear plate corresponding to the lifting hole is fixed on the outer wall below the guide sleeve. A lifting claw is rotatably arranged on the side of the ear plate near the guide sleeve. The chain is rotatably arranged on the side of the ear plate away from the guide sleeve. One end of the chain is rotatably connected to the ear plate. The other end of the chain is rotatably connected to the connecting plate. A lifting hook is integrally formed on the other end of the connecting plate. The connection between the connecting plate and the lifting hook is rotatably arranged on the bracket.

6. The feeding device for neodymium iron boron smelting raw materials according to claim 5, characterized in that, The upper and lower parts of the slider are both conical, and the maximum diameter of the slider is greater than the bottom diameter of the conical sleeve.

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