High-temperature alloy vacuum smelting scum removing device

Abstract

The invention discloses a scum removing device for high-temperature alloy vacuum smelting, and particularly relates to the technical field of high-temperature alloy vacuum smelting. Comprising a shell and a high-temperature alloy smelting crucible, a moving mechanism is arranged on the shell and used for driving the shell to move to the position over the high-temperature alloy smelting crucible, and a moving rod and a fixed rod which are located at the same height are arranged under the shell; the ends, close to the inner wall of the high-temperature alloy smelting crucible, of the movable rod and the fixed rod are provided with arc faces matched with the inner wall of the high-temperature alloy smelting crucible, the shell is further provided with a driving mechanism used for driving the movable rod to rotate along the inner wall of the high-temperature alloy smelting crucible, and the end of the movable rod is kept to abut against the end of the fixed rod all the time in the rotating process. The moving rod abuts against the side wall of the fixed rod when not rotating. By the adoption of the technical scheme, the problem that an existing high-temperature alloy vacuum smelting scum removing device is low in scum removing efficiency is solved, and the scum removing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum smelting of high-temperature alloys, and in particular to a slag removal device for vacuum smelting of high-temperature alloys. Background Art

[0002] The high-temperature alloy vacuum smelting process uses a high-temperature alloy smelting crucible for heating. The high-temperature alloy smelting crucible heating coil heats the high-temperature alloy solution inside the high-temperature alloy smelting crucible to a certain process step. A high-temperature alloy conjunctiva will form on the surface of the high-temperature alloy solution, and there will be condensed high-temperature alloy slag on the high-temperature alloy conjunctiva. The removal effect of the high-temperature alloy slag affects the fatigue performance of the high-temperature alloy product.

[0003] At present, common methods for removing slag from high-temperature alloys include shaking the wall and high-temperature alloy block sticking removal. Shaking the wall requires shaking the high-temperature alloy crucible to make the slag stick to the inner wall of the high-temperature alloy crucible, and then removing the slag stuck to the inner wall. This method has low slag removal efficiency. The high-temperature alloy block sticking removal method requires multiple sticking to achieve the desired process effect, which has the problems of low work efficiency and high production cost.

[0004] In response to the above technical problems, a Chinese patent (patent publication number: CN117928242A) discloses a high-temperature alloy vacuum smelting scum removal device and method. It includes a vacuum manipulator I, a vacuum manipulator II, a foam ceramic filter plate I and a foam ceramic filter plate II, wherein the foam ceramic filter plate I and the foam ceramic filter plate II are respectively arranged at the execution end of the vacuum manipulator I and the vacuum manipulator II, and the vacuum manipulator I and the vacuum manipulator II respectively drive the foam ceramic filter plate I and the foam ceramic filter plate II to scrape the high-temperature alloy conjunctiva and high-temperature alloy scum on the surface of the high-temperature alloy solution in the high-temperature alloy smelting crucible.

[0005] Although the above technical scheme realizes the removal of high-temperature alloy conjunctiva and high-temperature alloy slag by the coordinated clamping of foam ceramic filter plate I and foam ceramic filter plate II, in this technical scheme, the coordinated cooperation of vacuum manipulator I and vacuum manipulator II is required to remove the slag, and the cooperation accuracy is required to be high, so the manufacturing accuracy of the device is required to be high, but the removal efficiency in the actual working process is low. Therefore, there is an urgent need for a high-temperature alloy vacuum smelting slag removal device that can efficiently remove high-temperature alloy slag. Summary of the invention

[0006] The present invention aims to provide a high-temperature alloy vacuum smelting slag removal device, which solves the problem of low slag removal efficiency of the existing high-temperature alloy vacuum smelting slag removal device.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a high-temperature alloy vacuum smelting slag removal device, comprising a shell and a high-temperature alloy smelting crucible, the shell being provided with a moving mechanism, the moving mechanism being used to drive the shell to move to directly above the high-temperature alloy smelting crucible, a moving rod and a fixed rod being provided at the same height directly below the shell, the ends of the moving rod and the fixed rod close to the inner wall of the high-temperature alloy smelting crucible being provided with arc surfaces matching the inner wall of the high-temperature alloy smelting crucible, the shell being further provided with a driving mechanism for driving the moving rod to rotate along the inner wall of the high-temperature alloy smelting crucible, the moving rod keeping its end in contact with the end of the fixed rod at all times during rotation, and the moving rod being in contact with the side wall of the fixed rod when not rotating.

[0008] Furthermore, a plurality of filtering holes are provided on the movable rod and the fixed rod, and the movable rod and the fixed rod are both made of foam ceramics.

[0009] Through the above arrangement, the filter hole can avoid the situation in which the scum removal fails due to the scum rising with the alloy liquid level when the moving rod pushes the alloy solution during the movement of the moving rod, thereby improving the reliability of the present solution.

[0010] Furthermore, the driving mechanism includes a driving motor, which is arranged on the top wall of the shell, and a driving gear is provided on the output shaft of the driving motor, and a planetary gear is meshed on the driving gear. A connecting shaft is passed through the center of the planetary gear, and the connecting shaft is fixedly connected to the moving rod. The planetary gear is meshed with a gear ring covered outside the planetary gear and the driving gear, and the gear ring is fixedly connected to the bottom of the shell. A bearing located below the driving gear is also provided on the output shaft of the driving motor, and a fixing cover is provided on the outer ring of the bearing. The side wall of the fixing cover is connected to the fixing rod, and the end of the connecting shaft is provided with an arc surface matching the outer wall of the fixing cover.

[0011] Through the above arrangement, the driving motor can be used to drive the driving gear to rotate. After the driving gear rotates, the planetary gear and the ring gear form a planetary gear set, so that the planetary gear rotates around the driving gear. At this time, the connecting shaft and the moving rod rotate together with the planetary gear around the driving gear. After the moving rod rotates, it can push the scum to move to one side of the fixed rod. After the moving rod rotates to the other side of the fixed rod, the moving rod and the fixed rod are used to clamp the scum. The moving rod of this solution can rotate from one side of the fixed rod to the other side, ensuring that all the scum is removed, thereby improving the removal efficiency.

[0012] Furthermore, a cone cylinder is provided at the bottom of the fixed cover.

[0013] Through the above arrangement, the scum under the bearing can be pushed to the outside of the fixed cover by means of the conical cylinder when the conical cylinder enters the alloy solution, thereby ensuring the scum removal effect.

[0014] Furthermore, an L-shaped limiting rod is provided on the end of the fixing rod close to the side wall of the high-temperature alloy smelting crucible, and a friction block is provided on the inner side of the limiting rod. The height of the friction block is slightly larger than the distance between the inner wall of the limiting rod and the upper surface of the high-temperature alloy smelting crucible when the fixing rod is located in the high-temperature alloy smelting crucible for work.

[0015] Through the above arrangement, after the fixing rod enters the high-temperature alloy smelting crucible together with the shell (that is, the fixing rod contacts the liquid surface in the high-temperature alloy smelting crucible), the friction block contacts the upper surface of the high-temperature alloy smelting crucible under the action of the limiting rod, so that the friction force between the friction block and the high-temperature alloy smelting crucible is used to keep the position of the fixing rod unchanged during operation, thereby improving the working stability of the present solution.

[0016] Furthermore, a plurality of support columns are distributed circumferentially at the bottom of the gear ring.

[0017] Through the above arrangement, the support column can be used to support the shell when the device is working, thereby reducing the load of the moving mechanism and helping to extend the service life of the moving mechanism.

[0018] Furthermore, a pressure sensor is provided on the support column, and the pressure sensor is electrically connected to the drive motor.

[0019] Through the above arrangement, after the support column is put in place, the pressure value received by the pressure sensor reaches a preset value. At this time, the driving motor is triggered by the pressure sensor to realize automatic start of the driving mechanism, thereby improving the removal efficiency.

[0020] Furthermore, the moving mechanism adopts a mechanical arm or a hydraulic cylinder.

[0021] Through the above arrangement, different moving mechanisms can be selected according to different working environments, thereby improving the scope of application of the present solution.

[0022] Furthermore, both sides of the movable rod and the fixed rod are provided with inclined surfaces, and the inclined surfaces extend from the bottom to the top of the fixed rod.

[0023] Through the above arrangement, after the moving rod pushes the scum to move toward the fixed rod, the scum is collected by means of the relative inclined surfaces on the moving rod and the fixed rod, which is beneficial to improving the efficiency and effect of scum removal.

[0024] Compared with the prior art, this solution has the following beneficial effects: 1. This solution provides a high-temperature alloy vacuum smelting slag removal device, which clamps and collects slag through a fixed rod and a movable rod. Each time the slag is collected, the movable rod rotates nearly 360° to maintain the removal effect, thereby solving the problem of low slag removal efficiency of the existing high-temperature alloy vacuum smelting slag removal device.

[0025] 2. This solution mainly uses a planetary gear structure to remove scum. It has a simple structure and stable operation. It avoids the problem of multiple components needing to cooperate with each other in the prior art, reduces the requirements for component design and control in the device, and is conducive to improving the scum removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an axonometric view of a high-temperature alloy vacuum smelting slag removal device according to Example 1; Figure 2 This is a front view of a high-temperature alloy vacuum smelting slag removal device according to Example 1; Figure 3 yes Figure 2 Sectional view of AA in the middle; Figure 4 yes Figure 2 Cross-sectional view of the middle BB; Figure 5 yes Figure 2 Cross-sectional view of CC; Figure 6 yes Figure 5 A magnified partial view of point D in the middle. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below through specific embodiments: The figure marks in the drawings of the specification include: shell 1, high temperature alloy smelting crucible 2, moving mechanism 3, support frame 4, moving rod 5, fixed rod 6, filter hole 7, inclined surface 8, drive motor 9, drive gear 10, planetary gear 11, connecting shaft 12, connecting rod 13, ring gear 14, support column 15, pressure sensor 16, bearing 17, fixed cover 18, tapered cylinder 19, limit rod 20, friction block 21. Example

[0028] like Figures 1 to 3As shown, a high-temperature alloy vacuum smelting scum removal device includes a shell 1 and a high-temperature alloy smelting crucible 2. A moving mechanism 3 is provided on the top of the shell 1, and the moving mechanism 3 is used to drive the shell 1 to move to the top of the high-temperature alloy smelting crucible 2. The moving mechanism 3 of this embodiment adopts a hydraulic cylinder, which is fixed to the ground or other fixed objects through a support frame 4. The hydraulic cylinder is fixedly connected to the center of the top of the shell 1. The shell 1 and the high-temperature alloy smelting crucible 2 are coaxially arranged, so the hydraulic cylinder only needs to drive the shell 1 up and down to send the shell 1 to the working position or separate it from the high-temperature alloy smelting crucible 2. A moving rod 5 and a fixed rod 6 located at the same height are provided directly below the shell 1. In this embodiment, a plurality of filtering holes 7 are opened on the side walls of the moving rod 5 and the fixed rod 6. With the help of the filtering holes 7, the alloy solution can pass through the moving rod 5 or the fixed rod 6 smoothly during operation, which solves the problem of the scum overflowing due to the rising liquid level of the alloy solution in the area enclosed by the moving rod 5 and the fixed rod 6, and ensures the reliability of scum removal; the moving rod 5 and the fixed rod 6 are made of foam ceramics. The ends of the moving rod 5 and the fixed rod 6 close to the inner wall of the high temperature alloy smelting crucible 2 are provided with arc surfaces that match the inner wall of the high temperature alloy smelting crucible 2. In this embodiment, both sides of the moving rod 5 and the fixed rod 6 are provided with inclined surfaces 8, and the inclined surfaces 8 extend from the bottom to the top of the fixed rod 6. With the help of the two inclined surfaces 8, the opposite side of the moving rod 5 and the fixed rod 6 forms a collection cavity, so that the slag can be clamped and limited in the collection cavity.

[0029] The housing 1 is also provided with a driving mechanism for driving the moving rod 5 to rotate along the inner wall of the high-temperature alloy smelting crucible 2. The moving rod 5 keeps its end in contact with the end of the fixed rod 6 during the rotation process, and the moving rod 5 contacts the side wall of the fixed rod 6 when it is not rotating. The driving mechanism includes a driving motor 9, which is bolted to the top wall in the housing 1. A driving gear 10 is provided on the lower side of the output shaft of the driving motor 9. A planetary gear 11 is meshed on the driving gear 10. A connecting shaft 12 is passed through the center of the planetary gear 11. A connecting rod 13 is rotatably connected to the connecting shaft 12. The other end of the connecting rod 13 is covered on the output shaft of the driving motor 9 and is rotatably connected to the output shaft of the driving connection. The connecting rod 13 is located below the driving gear 10 and contacts the bottom of the driving gear 10. The planetary gear 11 can be effectively supported by the connecting rod 13 to ensure the stability of the structural operation of the planetary gear 11. The bottom of the connecting shaft 12 is fixedly connected to the moving rod 5, and the planetary gear 11 is meshed with a ring gear 14 covering the planetary gear 11 and the driving gear 10. The ring gear 14 is fixedly connected to the bottom of the housing 1. Three support columns 15 are distributed circumferentially at the bottom of the ring gear 14. With the help of the support columns 15, a certain support force can be provided for the housing 1, thereby reducing the load of the moving mechanism 3. A pressure sensor 16 is embedded at the bottom of each support column 15. The three pressure sensors 16 are electrically connected to the driving motor 9 together. The driving motor 9 will be triggered only when the three pressure sensors 16 reach the preset value.

[0030] The output shaft of the driving motor 9 is provided with a bearing 17 located below the connecting rod 13, the outer ring of the bearing 17 is fixedly connected with a fixed cover 18, the side wall of the fixed cover 18 is fixedly connected with the fixed rod 6, and the end of the moving rod 5 is provided with an arc surface that matches the outer wall of the fixed cover 18. The bottom of the fixed rod 6 is provided with a conical cylinder 19, and the scum directly below the conical cylinder 19 can be pushed to the outside of the fixed cover 18 by means of the conical cylinder 19, thereby improving the removal effect of the scum. An L-shaped limiting rod 20 is adhered to the upper surface of the end of the fixed rod 6 close to the side wall of the high-temperature alloy smelting crucible 2, and a friction block 21 is provided on the inner side of the limiting rod 20. The height of the friction block 21 is slightly greater than the distance between the inner wall of the limiting rod 20 and the upper surface of the high-temperature alloy smelting crucible 2 when the fixed rod 6 is located in the high-temperature alloy smelting crucible 2. The friction between the friction block 21 and the high-temperature alloy smelting crucible 2 can keep the position of the fixed rod 6 unchanged.

[0031] The working process of this embodiment is as follows: The hydraulic cylinder is started to drive the shell 1 to move toward the high-temperature alloy smelting crucible 2. After the support column 15 is placed on the upper surface of the high-temperature alloy smelting crucible 2, the hydraulic cylinder is controlled to stop moving. At this time, the three pressure sensors 16 are subjected to an extrusion force exceeding a preset value and trigger the drive motor 9. At the same time, the bottom parts of the moving rod 5 and the fixed rod 6 penetrate into the alloy solution.

[0032] After the driving motor 9 is triggered, the driving motor 9 drives the driving gear 10 to move. After the driving gear 10 moves, the planetary gear 11 mechanism composed of the driving gear 10, the planetary gear 11 and the gear ring 14 drives the planetary gear 11 to rotate around the driving gear 10, thereby driving the moving rod 5 to rotate around the center of the housing 1 with the help of the connecting shaft 12. At this time, the moving rod 5 pushes the alloy solution on one side thereof to move toward the fixed rod 6. During the pushing process, the end of the moving rod 5 always keeps in conflict with the end of the fixed rod 6, so that the scum between the moving rod 5 and the fixed rod 6 can be pushed toward the fixed rod 6 during its movement. During the movement of the moving rod 5, the driving motor 9 keeps rotating at a low speed to make the rotating speed of the moving rod 5 slow, which is conducive to the liquid level of the alloy solution not rising rapidly, and can flow out smoothly through the filter hole 7, ensuring that the scum will not move in a large range under the drive of the alloy solution, so as to facilitate the realization of the scum remaining in the area between the moving rod 5 and the fixed rod 6. Finally, the collection and limiting are performed with the help of the collection cavity between the moving rod 5 and the fixed rod 6, so that the removal of the scum is achieved.

[0033] The structure of this embodiment is simple and each time the moving rod 5 rotates from one side of the fixed rod 6 to the other side, it ensures that the scum can be completely collected, and the effect of scum removal is improved. At the same time, compared with the existing removal device that requires the coordination of multiple parts, this solution is simple and stable to operate, does not require the design of a control method, and can greatly reduce the manufacturing cost and control cost of the device. Example

[0034] The only difference between this embodiment and embodiment 1 is that the moving mechanism 3 of this embodiment adopts a robotic arm, and the robotic arm adopts existing technology. This embodiment does not improve it. The shell 1 can be set on the high-temperature alloy smelting crucible 2 through the robotic arm. At the same time, the robotic arm can remove slag for multiple high-temperature alloy smelting crucibles 2 in turn with its flexible control method, and there is no need to set up a support frame 4. While expanding the working range, it can also increase the workload.

[0035] The working process of this embodiment differs from that of Embodiment 1 only in that the working mode of the moving mechanism 3 itself is different, and the entire scum removal process is exactly the same.

[0036] The above are only embodiments of the present invention, and the common knowledge such as the known specific structures and / or characteristics in the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A high-temperature alloy vacuum smelting slag removal device, characterized in that: It includes a shell and a high-temperature alloy smelting crucible. The shell is provided with a moving mechanism, and the moving mechanism is used to drive the shell to move to the top of the high-temperature alloy smelting crucible. A moving rod and a fixed rod located at the same height are provided directly below the shell. The ends of the moving rod and the fixed rod close to the inner wall of the high-temperature alloy smelting crucible are provided with arc surfaces that match the inner wall of the high-temperature alloy smelting crucible. The shell is also provided with a driving mechanism for driving the moving rod to rotate along the inner wall of the high-temperature alloy smelting crucible. The moving rod keeps its end in contact with the end of the fixed rod during the rotation process, and the moving rod contacts the side wall of the fixed rod when it is not rotating.

2. The high temperature alloy vacuum smelting slag removal device according to claim 1, characterized in that: The movable rod and the fixed rod are both provided with a plurality of filtering holes, and the movable rod and the fixed rod are both made of foam ceramics.

3. The high temperature alloy vacuum smelting slag removal device according to claim 1, characterized in that: The driving mechanism includes a driving motor, which is arranged on the top wall of the shell, and a driving gear is provided on the output shaft of the driving motor, and a planetary gear is meshed on the driving gear. A connecting shaft is passed through the center of the planetary gear, and the connecting shaft is fixedly connected to the moving rod. A gear ring covered outside the planetary gear and the driving gear is meshed outside the planetary gear, and the gear ring is fixedly connected to the bottom of the shell. A bearing located below the driving gear is also provided on the output shaft of the driving motor, and a fixing cover is provided on the outer ring of the bearing. The side wall of the fixing cover is connected to the fixing rod, and the end of the connecting shaft is provided with an arc surface matching the outer wall of the fixing cover.

4. The high temperature alloy vacuum smelting slag removal device according to claim 3, characterized in that: A conical cylinder is also provided at the bottom of the fixed cover.

5. The high temperature alloy vacuum smelting slag removal device according to claim 3, characterized in that: An L-shaped limiting rod is provided on the end of the fixing rod close to the side wall of the high-temperature alloy smelting crucible, and a friction block is provided on the inner side of the limiting rod. The height of the friction block is slightly greater than the distance between the inner wall of the limiting rod and the upper surface of the high-temperature alloy smelting crucible when the fixing rod is located in the high-temperature alloy smelting crucible for work.

6. The high temperature alloy vacuum smelting slag removal device according to claim 3, characterized in that: A plurality of support columns are distributed circumferentially at the bottom of the gear ring.

7. The high temperature alloy vacuum smelting slag removal device according to claim 6, characterized in that: A pressure sensor is provided on the support column, and the pressure sensor is electrically connected to the drive motor.

8. A high temperature alloy vacuum smelting slag removal device according to any one of claims 1 to 7, characterized in that: The moving mechanism adopts a mechanical arm or a hydraulic cylinder.

9. A high temperature alloy vacuum smelting slag removal device according to any one of claims 1 to 7, characterized in that: Both sides of the movable rod and the fixed rod are provided with inclined surfaces, and the inclined surfaces extend from the bottom to the top of the fixed rod.

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