Vacuum levitation melting and casting system and apparatus

Abstract

The application relates to the technical field of vacuum suspension smelting, in particular to a vacuum suspension smelting pouring system and equipment. The system comprises a crucible assembly, a mounting cylinder assembly, a coil assembly and a wire coil assembly; the mounting cylinder assembly comprises a fixed cylinder and a rotating cylinder; the coil assembly comprises an induction coil and a coaxial electrode; the coaxial electrode comprises an inner conductive cylinder and an outer conductive cylinder; the wire coil assembly comprises a first wire coil unit and a second wire coil unit; the first wire coil unit comprises a first conductive disc, a first wire and a first conductive seat; the first wire is bent in an arc shape to apply auxiliary power to the first conductive disc to help the first conductive disc rotate; the second wire coil unit comprises a second conductive disc, a second wire and a second conductive seat; the second wire is bent in an arc shape to apply auxiliary power to the second conductive disc to help the second conductive disc rotate; thereby solving the problem that the starting torque of the tilting action of the crucible assembly in a vacuum environment is relatively large, resulting in high loss or cost of the driving assembly.

Description

Technical Field

[0001] This application relates to the field of vacuum suspension melting technology, and more specifically, to a vacuum suspension melting casting system and equipment. Background Technology

[0002] Vacuum suspension melting and casting systems are core process equipment for the melting and preparation of high-purity, high-activity special metals and alloys. The casting actuator of such systems mainly consists of three core units: a drive assembly, a coaxial electrode, and a melting crucible. In actual production, the metal raw material undergoes suspension melting within the crucible in a vacuum-sealed environment. Once a molten metal with uniform composition and temperature meeting process requirements is formed, the molten metal is precisely cast by rotating the crucible at a fixed angle. The crucible's rotation is powered by the drive assembly, which drives the coaxial electrode to rotate at a fixed angle. The power output end of the coaxial electrode is connected to the crucible's rotation support structure. The rotation of the coaxial electrode causes the crucible to rotate around a preset axis, thus pouring the molten metal inside the crucible to the target casting position, completing the entire casting process.

[0003] In the initial stage of the smelting and casting operation, the crucible contains a large amount of unpoured molten metal. The overall weight of the crucible and molten metal is at its peak during the entire operation, requiring the drive assembly to overcome the tilting start-up torque generated by this weight. Simultaneously, due to the limitations of the vacuum operating environment, the drive assembly cannot be placed inside the vacuum chamber and must be positioned outside, away from the crucible's center of rotation. This further deteriorates the lever arm structure between the point of application of the drive and the center of gravity, significantly amplifying the required drive torque under the same load conditions and increasing the required force. The large initial load directly leads to a substantial increase in the start-up torque required for the tilting operation, forcing a higher rated load selection threshold for the drive assembly. This increases the design and manufacturing costs of the equipment, and the high-load start-up condition also exacerbates the wear and tear on transmission components, affecting the long-term stability of the equipment. Summary of the Invention

[0004] To address the issue that the large starting torque of the crucible assembly during tilting in a vacuum environment leads to high wear and tear or high cost of the drive components, this application provides a vacuum suspension melting and casting system and equipment.

[0005] In a first aspect, this application provides a vacuum suspension melting and casting system, the vacuum suspension melting and casting system comprising:

[0006] A crucible assembly, comprising a crucible body and a base; the crucible body is connected to the base.

[0007] The mounting cylinder assembly includes a fixed cylinder and a rotating cylinder; the fixed cylinder and the rotating cylinder are coaxial and rotatably connected; the rotating cylinder is connected to the base;

[0008] A coil assembly includes an induction coil and a coaxial electrode; the induction coil is wound around the outside of the crucible body; the coaxial electrode is connected to the rotating cylinder; the coaxial electrode includes an inner conductive cylinder and an outer conductive cylinder; the inner conductive cylinder is partially located inside the outer conductive cylinder and the two are coaxially arranged; one end of the induction coil is electrically connected to the inner conductive cylinder and the other end is electrically connected to the outer conductive cylinder.

[0009] A coil assembly includes a first coil unit and a second coil unit. The first coil unit includes a first conductive disc, a first wire, and a first conductive base. The first conductive disc is connected to an inner conductive cylinder. The first wire is connected between the first conductive disc and the first conductive base. The two ends of the first wire are spaced apart along the circumferential direction of the rotating cylinder. The first wire is curved to apply auxiliary power to the first conductive disc to assist its rotation. The second coil unit includes a second conductive disc, a second wire, and a second conductive base. The second conductive disc is connected to an outer conductive cylinder. The second wire is connected between the second conductive disc and the second conductive base. The two ends of the second wire are spaced apart along the circumferential direction of the rotating cylinder. The second wire is curved to apply auxiliary power to the second conductive disc to assist its rotation.

[0010] In the vacuum suspension melting and casting system, when the crucible body opening is facing upwards, the distance between the two ends of the first wire and the distance between the two ends of the second wire are both at their minimum range of variation so that the auxiliary power is at its maximum value.

[0011] Optionally, the vacuum suspension melting and casting system further includes a cooling assembly; the cooling assembly includes a cooling water pipe; the cooling water pipe is partially inserted into the rotating cylinder; the cooling water pipe is used to cool the crucible body.

[0012] Optionally, the axis of the coaxial electrode is parallel to and spaced apart from the axis of the rotating cylinder; the axis of the cooling water pipe is parallel to and spaced apart from the axis of the rotating cylinder; the coaxial electrode and the cooling water pipe are distributed around the axis of the rotating cylinder.

[0013] Optionally, when the vacuum suspension melting and casting system is in operation and the crucible assembly is facing upwards, the axis of the coaxial electrode is higher than the axis of the cooling water pipe.

[0014] Optionally, both the first conductive disk and the second conductive disk are coaxial with the coaxial electrode;

[0015] Multiple first wires are arranged at intervals along the circumference of the first conductive disk; the distance from the end of the first conductive disk to the axis of the rotating cylinder is a first distance; the length of the first wire is positively correlated with the first distance;

[0016] Multiple second wires are arranged at intervals along the circumference of the second conductive disk; the distance from the end of the second conductive disk to the axis of the rotating cylinder is the second distance; the length of the second wire is positively correlated with the second distance.

[0017] Optionally, the vacuum suspension melting and casting system further includes a drive assembly; the drive assembly includes a telescopic drive unit, a connecting seat, and a fixed seat; one end of the telescopic drive unit is rotatably connected to the fixed seat, and the other end is rotatably connected to the connecting seat; the connecting seat is connected to the rotating cylinder.

[0018] Optionally, the drive assembly is located at the end of the rotating cylinder away from the crucible assembly.

[0019] Secondly, this application provides a vacuum levitation melting apparatus, the vacuum levitation melting apparatus comprising:

[0020] Vacuum suspension melting and casting system according to any one of the first aspects;

[0021] The furnace body, and the vacuum suspension melting and casting system are connected to the furnace body;

[0022] A vacuum system, which is connected to the furnace body.

[0023] Optionally, the vacuum suspension melting and casting system further includes a drive assembly; the drive assembly is connected to the rotating cylinder; the drive assembly is located on the outside of the furnace body.

[0024] Optionally, three vacuum suspension melting and casting systems are provided; the three vacuum suspension melting and casting systems are arranged symmetrically about the axis of the furnace body; the axis of the rotating cylinder is offset from the axis of the furnace body.

[0025] To address the issue of high starting torque for the tilting action of the crucible assembly in a vacuum environment, which leads to high wear and tear or high cost of the drive assembly, this application has the following advantages:

[0026] In the coil assembly of the vacuum levitation melting and casting system, the first coil unit uses an arc-shaped first wire to connect the first conductive disc and the first conductive base, and the second coil unit uses an arc-shaped second wire to connect the second conductive disc and the second conductive base. When the vacuum levitation melting and casting system is in operation and the crucible body opening faces upwards, the distance between the two ends of the first wire along the circumference of the rotating cylinder and the distance between the two ends of the second wire along the circumference of the rotating cylinder are both at their minimum range of variation, achieving maximum auxiliary power. This provides assistance for the rotation of the first and second conductive discs. Furthermore, through the inner conductive cylinder connected to the first conductive disc and the outer conductive cylinder connected to the second conductive disc, the rotating cylinder, the base connected to the rotating cylinder, and the crucible body rotate synchronously. This ultimately solves the problem of a large initial weight of the crucible body and the high required rotational driving force, ensuring stable rotation of the crucible body in the initial stage of operation of the vacuum levitation melting and casting system, and improving the stability and reliability of the system operation. Attached Figure Description

[0027] Figure 1 A schematic diagram of the vacuum suspension melting and casting system of Embodiment 1 is shown;

[0028] Figure 2 It shows Figure 1 A top view of the vacuum suspension melting and casting system in the middle;

[0029] Figure 3 It shows Figure 1 A front view of the vacuum suspension melting and casting system in the middle;

[0030] Figure 4 It shows Figure 3 Enlarged view of point A in the vacuum suspension melting and casting system;

[0031] Figure 5 A schematic diagram of the rotating cylinder of the vacuum suspension melting and casting system of Embodiment 1 is shown;

[0032] Figure 6 A schematic diagram of the outer conductive cylinder of the vacuum suspension melting and casting system of Embodiment 1 is shown;

[0033] Figure 7 A schematic diagram of the inner conductive cylinder of the vacuum suspension melting and casting system of Embodiment 1 is shown;

[0034] Figure 8 A schematic diagram of the vacuum suspension melting equipment of Embodiment 2 is shown;

[0035] Figure 9 It shows Figure 8 A top view of a vacuum suspension melting equipment.

[0036] Reference numerals: Crucible assembly 10; Crucible body 11; Base 12; Mounting cylinder assembly 20; Fixed cylinder 21; Rotating cylinder 22; Coil assembly 30; Induction coil 31; Coaxial electrode 32; Inner conductive cylinder 321; Outer conductive cylinder 322; Wire coil assembly 40; First wire coil unit 41; First conductive disc 411; First wire 412; First conductive seat 413; Second wire coil unit 42; Second conductive disc 421; Second wire 422; Second conductive seat 423; Cooling assembly 50; Drive assembly 60; Telescopic drive unit 61; Connecting seat 62; Fixed seat 63; Vacuum levitation melting equipment 70. Detailed Implementation

[0037] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0038] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0039] Example 1:

[0040] In this embodiment, a vacuum suspension melting and casting system is provided, such as Figure 1 , Figure 2 , Figure 3 As shown, the vacuum suspension melting and casting system includes a crucible assembly 10, a mounting cylinder assembly 20, a coil assembly 30, and a coil assembly 40.

[0041] The crucible assembly 10 includes a crucible body 11 and a base 12, with the crucible body 11 connected to the base 12. The crucible body 11 is used to hold the metal material to be melted, and the base 12 provides stable mounting support for the crucible body 11.

[0042] The mounting cylinder assembly 20 includes a fixed cylinder 21 and a rotating cylinder 22. The fixed cylinder 21 and the rotating cylinder 22 are coaxially arranged and can rotate relative to each other. The fixed cylinder 21 provides a stable coaxial limit for the rotation of the rotating cylinder 22, preventing radial offset during rotation. The rotating cylinder 22 is connected to the base 12, synchronously transmitting the rotational motion to the crucible body 11, achieving stable rotation of the crucible body 11, and ensuring uniform heating of the material during the melting process.

[0043] The coil assembly 30 includes an induction coil 31 and a coaxial electrode 32. The induction coil 31 is wound around the outside of the crucible body 11 and can generate an alternating electromagnetic field after being energized, thereby achieving suspension melting and heating of the material inside the crucible body 11. Figure 5 , Figure 6 , Figure 7 As shown, the coaxial electrode 32 is connected to the rotating cylinder 22 and can move synchronously with the rotating cylinder 22, ensuring the continuity of power supply during rotation. The coaxial electrode 32 includes an inner conductive cylinder 321 and an outer conductive cylinder 322. The inner conductive cylinder 321 is partially located inside the outer conductive cylinder 322, and the two are coaxially arranged, which significantly reduces the line impedance during induction heating, reduces energy consumption, and ensures the symmetry of the power supply circuit, avoiding uneven electromagnetic field distribution. One end of the induction coil 31 is electrically connected to the inner conductive cylinder 321, and the other end is electrically connected to the outer conductive cylinder 322, forming a complete power supply circuit. This provides reliable power transmission for the stable operation of the induction coil 31, ensuring the continuous and stable progress of the melting process.

[0044] like Figure 4As shown, the coil assembly 40 includes a first coil unit 41 and a second coil unit 42, thereby providing independent power supply circuits for the inner conductive cylinder 321 and the outer conductive cylinder 322 respectively, avoiding mutual interference between the two power supplies and ensuring the stability and independence of the power supply. The first coil unit 41 includes a first conductive disc 411, a first wire 412, and a first conductive base 413. The first conductive disc 411 is connected to the inner conductive cylinder 321, and the first wire 412 is connected between the first conductive disc 411 and the first conductive base 413. The two ends of the first wire 412 are spaced apart along the circumference of the rotating cylinder 22, so that the first wire 412 is curved to apply auxiliary power to the first conductive disc 411 to assist the rotation of the first conductive disc 411. That is, the curved bending of the first wire 412 utilizes the component force of the straightening tendency to apply auxiliary power to the first conductive disc 411. The second coil unit 42 includes a second conductive disc 421, a second wire 422, and a second conductive base 423. The second conductive disk 421 is connected to the outer conductive cylinder 322. The second wire 422 is connected between the second conductive disk 421 and the second conductive base 423. The two ends of the second wire 422 are spaced apart along the circumference of the rotating cylinder 22. The second wire 422 is bent in an arc to apply auxiliary power to the second conductive disk 421 to assist the second conductive disk 421 in rotating. That is, the second wire 422 is bent in an arc, and the component of the force due to the straightening tendency is converted into auxiliary power applied to the second conductive disk 421.

[0045] It should be understood that the first conductive disk 411 is connected to the inner conductive cylinder 321, and the second conductive disk 421 is connected to the outer conductive cylinder 322, thereby enabling the inner and outer conductive cylinders 321 and 322 to rotate synchronously and achieve continuous power transmission during rotation. The ends of the first wire 412 and the second wire 422 are spaced apart along the circumference of the rotating cylinder 22, providing ample travel space for the deformation and power output of the first and second wires 412. The arc-shaped first wire 412 can apply auxiliary rotational power to the first conductive disk 411, assisting its smooth rotation. The arc-shaped second wire 422 can apply auxiliary rotational power to the second conductive disk 421, assisting its smooth rotation, thereby providing assistance for the rotation of the crucible body 11, reducing the driving load on the rotation of the crucible body 11, and improving the smoothness of the rotational action.

[0046] When the vacuum levitation melting and casting system is in operation, with the crucible body 11 opening upwards, the distance between the two ends of the first wire 412 and the second wire 422 is at its minimum range of variation, maximizing the auxiliary power. It should be understood that by adjusting the distance between the two ends of the first wire 412 and the second wire 422 to their minimum range during the upward-facing operation of the crucible body 11, the auxiliary rotational power output by the first wire 412 and the second wire 422 reaches its maximum value. This provides maximum assistance for the rotation of the crucible body 11, effectively reducing the energy consumption required to drive the rotation of the crucible body 11, ensuring the stability and continuity of the crucible body 11's rotation during the core melting stage, avoiding rotational jamming due to excessive load, and ensuring the smooth operation of the vacuum levitation melting and casting system.

[0047] Furthermore, the vacuum levitation melting and casting system also includes a cooling component 50. The cooling component 50 includes cooling water pipes. These cooling water pipes are partially inserted into the rotating cylinder 22, optimizing the overall structural layout of the vacuum levitation melting and casting system and avoiding the need for external cooling water pipes that would occupy additional installation space. During the operation of the vacuum levitation melting and casting system, the cooling water pipes provide continuous and stable cooling to the crucible body 11, meeting the cooling requirements of the crucible body 11 and effectively preventing the crucible body 11 from being exposed to a high-temperature melting environment for extended periods, thus significantly improving the structural stability and service life of the crucible body 11.

[0048] Furthermore, the axis of the coaxial electrode 32 is parallel to and spaced from the axis of the rotating cylinder 22, and the axis of the cooling water pipe is also parallel to and spaced from the axis of the rotating cylinder 22. This avoids contact friction between the cooling water pipe and the rotating cylinder 22 during rotation, preventing damage to the pipe wall due to friction. The coaxial electrode 32 and the cooling water pipe are distributed around the axis of the rotating cylinder 22, making full use of the annular space around the rotating cylinder 22 to achieve a compact layout of the coaxial electrode 32 and the cooling water pipe, effectively reducing the space occupied by the cooling water pipe and optimizing the space utilization of the vacuum suspension melting and casting system.

[0049] In other embodiments, one end of the cooling water pipe is connected to a cooling water tank, which is located at the bottom of the crucible body 11.

[0050] Furthermore, when the vacuum suspension melting and casting system is in operation, and the crucible assembly 10 is in the open-facing position, the axis of the coaxial electrode 32 is higher than the axis of the cooling water pipe, thus placing the cooling water pipe in a relatively lower position in the overall structure. On the one hand, this significantly shortens the installation distance between the cooling water pipe and the bottom cooling water tank of the crucible assembly 10, facilitating a stable and reliable connection between the cooling water pipe and the cooling water tank. On the other hand, it allows the cooling capacity delivered by the cooling water pipe to be transferred to the crucible body 11 more efficiently, providing a stable and efficient cooling effect for the crucible body 11, ensuring the stable realization of the cooling function, and meeting the cooling requirements of the crucible body 11 during the vacuum suspension melting operation. On the other hand, the connection distance between the cooling water pipe and the cooling water tank at the bottom of the crucible assembly 10 is closer, which can effectively reduce the length of the exposed suspended cooling water pipe and reduce the pipe offset and torsion amplitude that occur when the cooling water pipe rotates synchronously with the rotating drum 22. This prevents the cooling water pipe from getting tangled during rotation, ensures the operational stability and sealing of the cooling medium delivery circuit, avoids problems such as cooling interruption and pipe damage and leakage due to pipe tangling, and ensures the continuous and stable operation of vacuum suspension melting.

[0051] Furthermore, both the first conductive disk 411 and the second conductive disk 421 are coaxial with the coaxial electrode 32, ensuring that the first conductive disk 411, the second conductive disk 421 and the coaxial electrode 32 maintain the same rotation center during rotation, avoiding problems such as poor contact or disconnection of the power supply circuit during rotation, ensuring the continuity of power supply to the induction coil 31, and providing power support for the stable operation of vacuum suspension melting.

[0052] Multiple first wires 412 are arranged at intervals along the circumference of the first conductive disk 411, so that each point on the circumference of the first conductive disk 411 is subjected to uniform auxiliary rotational force, thereby improving the stability of the auxiliary force output. The distance from the end of the first wire 412 connected to the first conductive disk 411 to the axis of the rotating cylinder 22 is the first distance, and the length of the first wire 412 is positively correlated with the first distance. By precisely controlling the magnitude of the auxiliary force applied by the first wire 412 to the first conductive disk 411, it is ensured that the first wire 412 can stably provide sufficient rotational assistance to the first conductive disk 411, reducing the rotational drive load on the first conductive disk 411 and the inner conductive cylinder 321, the rotating cylinder 22, and the crucible body 11 connected to it, thereby improving the smooth operation of the overall rotating structure. The longer the length of the first wire 412, the greater the corresponding lever arm, and the greater the rotational assistance applied by the first wire 412 to the first conductive disk 411. This can effectively increase the upper limit of the auxiliary power output, provide stronger assistance support for the rotation of the first conductive disk 411, the inner conductive cylinder 321, the rotating cylinder 22 and the crucible body 11, and significantly reduce the rotational drive load and energy consumption.

[0053] Multiple second wires 422 are arranged at intervals along the circumference of the second conductive disk 421, so that each point on the circumference of the second conductive disk 421 is subjected to uniform auxiliary rotational power, improving the stability of the auxiliary power output. The distance from the end of the second wire 422 connected to the second conductive disk 421 to the axis of the rotating cylinder 22 is called the second distance, and the length of the second wire 422 is positively correlated with the second distance. By precisely controlling the magnitude of the auxiliary power applied by the second wire 422 to the second conductive disk 421, it is ensured that the second wire 422 can stably provide sufficient rotational assistance to the second conductive disk 421, reducing the rotational drive load of the second conductive disk 421 and the connected outer conductive cylinder 322, rotating cylinder 22, and crucible body 11, and improving the smooth operation of the overall rotating structure. When the length of the second wire 422 is longer, the corresponding lever arm is larger, and the rotational assistance applied by the second wire 422 to the second conductive disk 421 is greater. It can form a resultant force with the first wire 412, further increasing the upper limit of the overall auxiliary power output, and significantly reducing the drive load and energy consumption of the crucible body 11 rotation.

[0054] Furthermore, the vacuum suspension melting and casting system also includes a drive assembly 60. The drive assembly 60 includes a telescopic drive unit 61, a connecting seat 62, and a fixed seat 63. The fixed seat 63 serves as a support component, providing a stable mounting reference for the entire drive assembly 60 and ensuring the stability and reliability of the drive action. One end of the telescopic drive unit 61 is rotatably connected to the fixed seat 63, and the other end is rotatably connected to the connecting seat 62, thereby flexibly converting the telescopic movement of the telescopic drive unit 61 into the rotational movement of the connecting seat 62. This avoids structural jamming during the telescopic drive process, effectively buffers the mechanical stress generated during the drive process, reduces component wear, and extends the service life of the drive assembly 60. The connecting seat 62 is connected to the rotating cylinder 22, thereby efficiently transmitting the driving force generated by the drive assembly 60 to the rotating cylinder 22, achieving precise transmission of the driving force. In this application, the drive assembly 60 provides the main driving force to the rotating cylinder 22, causing the rotating cylinder 22 to rotate stably. The rotating cylinder 22 is connected to the base 12 of the crucible assembly 10, thereby causing the base 12 and the crucible body 11 to rotate synchronously, ultimately achieving the tilting action of the crucible body 11. In conjunction with the auxiliary power of the coil assembly 40, the driving requirements can be reduced, ensuring the smoothness and controllability of the casting process. At the same time, in conjunction with the auxiliary power of the coil assembly 40, the driving efficiency and operational stability of the vacuum suspension melting and casting system can be improved.

[0055] The drive assembly 60 is located at the end of the rotating cylinder 22 away from the crucible assembly 10. The driving force output by the drive assembly 60 needs to be transmitted along the axial direction of the rotating cylinder 22 to the end where the crucible assembly 10 is located. Compared with the arrangement of the drive assembly 60 closer to the crucible assembly 10, the power transmission path is longer, which will generate a certain axial torque loss. This places higher demands on the power output efficiency of the drive assembly 60, further highlighting the importance of the coil assembly 30 applying auxiliary rotational power. This provides assistance for the rotation of the crucible body 11, reduces the driving load on the rotation of the crucible body 11, improves the smoothness of the rotation action, and reduces the manufacturing cost of the drive assembly 60.

[0056] Furthermore, the drive assembly 60 is located at the end of the rotating cylinder 22 away from the crucible assembly 10. During the vacuum suspension melting process, the area where the crucible assembly 10 is located is a harsh working condition area with high temperature, vacuum, and splashing of metal vapor and molten material. By placing the drive assembly 60 at the end of the rotating cylinder 22 away from the crucible assembly 10, the drive assembly 60 is located on the outer wall of the vacuum chamber, forming an effective physical isolation from the melting operation area, avoiding the drive assembly 60 from high temperature radiation, and effectively ensuring the service life of the drive assembly 60.

[0057] Example 2:

[0058] In this embodiment, a vacuum suspension melting device 70 is provided, such as... Figure 8 , Figure 9 As shown, the vacuum suspension melting equipment 70 includes a vacuum suspension melting casting system, a furnace body, and a vacuum system.

[0059] The vacuum levitation melting and casting system is connected to the furnace body. The furnace body, as the main load-bearing and sealed protective structure, provides a stable installation benchmark and enclosed working space for the vacuum levitation melting and casting system, effectively isolating the external environment from interference with the internal melting operation.

[0060] The vacuum system is connected to the furnace body and controls the vacuum level inside the furnace, thereby creating a high-vacuum working environment that meets the requirements of smelting. This effectively prevents the metal materials from undergoing oxidation reactions with active gases in the air at high temperatures, prevents material contamination and performance degradation, and ensures the purity and quality of the smelted products.

[0061] Furthermore, the vacuum suspension melting and casting system also includes a drive assembly 60. The drive assembly 60 is connected to the rotating cylinder 22 and is used to drive the rotating cylinder 22 to rotate. The drive assembly 60 is located on the outside of the furnace body. The drive assembly 60 provides a stable and controllable power source for the rotation of the rotating cylinder 22, working in synergy with the auxiliary rotational power provided by the coil assembly 40 to jointly provide power support for the rotation of the rotating cylinder 22, effectively reducing the load on a single power source. The drive assembly 60 directly outputs rotational driving force to the rotating cylinder 22, resulting in a short power transmission path, high transmission efficiency, and effectively reducing energy loss during power transmission. Since the inside of the furnace body is in a vacuum and high-temperature state, accompanied by metal vapor, placing the drive assembly 60 on the outside of the furnace body avoids the influence of high-temperature radiation and the vacuum environment, thereby extending the service life of the drive assembly 60.

[0062] Furthermore, the equipment is equipped with three vacuum levitation melting and casting systems, enabling multi-station synchronous operation. It can simultaneously complete vacuum levitation melting and casting of multiple sets of different metal materials, significantly improving operational efficiency and production capacity. The three vacuum levitation melting and casting systems are rotationally symmetrical about the furnace axis, optimizing the internal structural layout of the furnace and preventing interference between the systems. This ensures that each system can independently and synchronously complete melting and casting operations. The axis of the rotating cylinder 22 is offset from the furnace axis, effectively preventing spatial interference between the rotation of the cylinder 22 and the central structure of the furnace. This provides ample space for the rotation of the cylinder 22 and the tilting of the crucible body 11, allowing the crucible body 11 to complete full-angle attitude adjustments, meeting the process requirements of the entire melting and casting process. This rotationally symmetrical arrangement of the three vacuum levitation melting and casting systems avoids mutual interference between components at adjacent stations, further enhancing the safety and stability of equipment operation.

[0063] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A vacuum suspension melting and casting system, characterized in that, The vacuum suspension melting and casting system includes: A crucible assembly, comprising a crucible body and a base; the crucible body is connected to the base. The mounting cylinder assembly includes a fixed cylinder and a rotating cylinder; the fixed cylinder and the rotating cylinder are coaxial and rotatably connected; the rotating cylinder is connected to the base; A coil assembly includes an induction coil and a coaxial electrode; the induction coil is wound around the outside of the crucible body; the coaxial electrode is connected to the rotating cylinder; the coaxial electrode includes an inner conductive cylinder and an outer conductive cylinder; the inner conductive cylinder is partially located inside the outer conductive cylinder and the two are coaxially arranged; one end of the induction coil is electrically connected to the inner conductive cylinder and the other end is electrically connected to the outer conductive cylinder. A coil assembly includes a first coil unit and a second coil unit. The first coil unit includes a first conductive disc, a first wire, and a first conductive base. The first conductive disc is connected to an inner conductive cylinder. The first wire is connected between the first conductive disc and the first conductive base. The two ends of the first wire are spaced apart along the circumferential direction of the rotating cylinder. The first wire is curved to apply auxiliary power to the first conductive disc to assist its rotation. The second coil unit includes a second conductive disc, a second wire, and a second conductive base. The second conductive disc is connected to an outer conductive cylinder. The second wire is connected between the second conductive disc and the second conductive base. The two ends of the second wire are spaced apart along the circumferential direction of the rotating cylinder. The second wire is curved to apply auxiliary power to the second conductive disc to assist its rotation. In the vacuum suspension melting and casting system, when the crucible body opening is facing upwards, the distance between the two ends of the first wire and the distance between the two ends of the second wire are both at their minimum range of variation so that the auxiliary power is at its maximum value.

2. The vacuum suspension melting and casting system according to claim 1, characterized in that, The vacuum suspension melting and casting system also includes a cooling component; the cooling component includes a cooling water pipe; the cooling water pipe is partially inserted into the rotating cylinder; the cooling water pipe is used to cool the crucible body.

3. The vacuum suspension melting and casting system according to claim 2, characterized in that, The axis of the coaxial electrode is parallel to and spaced apart from the axis of the rotating cylinder; the axis of the cooling water pipe is parallel to and spaced apart from the axis of the rotating cylinder; the coaxial electrode and the cooling water pipe are distributed around the axis of the rotating cylinder.

4. The vacuum suspension melting and casting system according to claim 2, characterized in that, When the vacuum suspension melting and casting system is in operation, and the crucible assembly is facing upwards, the axis of the coaxial electrode is higher than the axis of the cooling water pipe.

5. A vacuum suspension melting and casting system according to claim 3, characterized in that, Both the first conductive disk and the second conductive disk are coaxial with the coaxial electrode; Multiple first wires are arranged at intervals along the circumference of the first conductive disk; the distance from the end of the first conductive disk to the axis of the rotating cylinder is a first distance; the length of the first wire is positively correlated with the first distance; Multiple second wires are arranged at intervals along the circumference of the second conductive disk; the distance from the end of the second conductive disk to the axis of the rotating cylinder is the second distance; the length of the second wire is positively correlated with the second distance.

6. The vacuum suspension melting and casting system according to claim 1, characterized in that, The vacuum suspension melting and casting system further includes a drive assembly; the drive assembly includes a telescopic drive unit, a connecting seat, and a fixed seat; one end of the telescopic drive unit is rotatably connected to the fixed seat, and the other end is rotatably connected to the connecting seat; the connecting seat is connected to the rotating cylinder.

7. A vacuum suspension melting and casting system according to claim 6, characterized in that, The drive assembly is located at the end of the rotating cylinder away from the crucible assembly.

8. A vacuum suspension melting device, characterized in that, The vacuum suspension melting equipment includes: Vacuum suspension melting and casting system according to any one of claims 1-7; The furnace body, and the vacuum suspension melting and casting system are connected to the furnace body; A vacuum system, which is connected to the furnace body.

9. A vacuum suspension melting apparatus according to claim 8, characterized in that, The vacuum suspension melting and casting system also includes a drive assembly; the drive assembly is connected to the rotating cylinder; the drive assembly is located on the outside of the furnace body.

10. A vacuum suspension melting apparatus according to claim 8, characterized in that, The vacuum suspension melting and casting system is provided in three parts; the three vacuum suspension melting and casting systems are arranged symmetrically about the axis of the furnace body; the axis of the rotating cylinder is offset from the axis of the furnace body.

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