Mechanical stirring device for cold crucible

Abstract

This application relates to the field of cold crucible technology, specifically to a mechanical stirring device for a cold crucible. The device includes a shell, a mounting base, a rod, and a stirring section. The mounting base is connected to the shell and is detachably connected to the top cover of the cold crucible. The rod is retractably disposed within the shell. The stirring section is connected to the rod and extends sequentially through the mounting base and the top cover into the crucible body to stir the material within the crucible. The top cover has a locking part, and the mounting base has a locking engagement part for locking with the locking part. The engagement of the locking engagement part with the locking part allows the mounting base to be detachably connected to the top cover. The mechanical stirring device provided in this application includes a mounting base and a locking engagement part. The engagement of the locking engagement part with the locking part of the top cover allows for the detachable connection of the mounting base to the top cover, facilitating the installation and disassembly of the mechanical stirring device by operating the locking engagement part with a robotic arm.

Description

Technical Field

[0001] The embodiments of this application relate to the field of cold crucible technology, and more specifically to a mechanical stirring device for a cold crucible. Background Technology

[0002] The statements herein are provided merely as background information in connection with this application and do not necessarily constitute prior art.

[0003] Cold crucible vitrification is a commonly used technique for treating radioactive waste. It involves melting the radioactive waste at high temperatures into a glassy substance and storing it in a specific container, thus solidifying the toxic substances within the glass. The cold crucible is the core equipment in high-level radioactive waste vitrification facilities. It receives the radioactive waste and the glass substrate, and uses a high-frequency coil inside the crucible to generate an induced current that heats the glass substrate to a molten state, ultimately yielding a vitrified form of the radioactive waste. Summary of the Invention

[0004] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this overview is not an exhaustive summary of the application. It is not intended to identify key or essential parts of the application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0005] This application provides a mechanical stirring device, which includes a housing, a mounting base, a rod, and a stirring section. The mounting base is connected to the housing and is detachably connected to the top cover of a cold crucible. The rod is retractably disposed within the housing. The stirring section is connected to the rod and extends sequentially through the mounting base and the top cover into the crucible body to stir the material within the crucible. The top cover has a locking part, and the mounting base has a locking engagement part for locking with the locking part. The engagement of the locking engagement part with the locking part allows the mounting base to be detachably connected to the top cover. The mechanical stirring device provided in this application includes a mounting base and a locking engagement part. The engagement of the locking engagement part with the locking part of the top cover allows for the detachable connection of the mounting base to the top cover. This facilitates the installation and disassembly of the mechanical stirring device by operating the locking engagement part through a robotic arm or power arm within the hot chamber. Attached Figure Description

[0006] Other objects and advantages of this application will become apparent from the following description of embodiments of this application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of this application.

[0007] Figure 1 This is a schematic diagram of the mechanical stirring device provided in the embodiment of this application installed on the top cover.

[0008] Figure 2 This is a schematic diagram of the mechanical stirring device provided in the embodiment of this application installed on the top cover. Only part of the top cover is shown in the figure.

[0009] Figure 3 This is a schematic diagram of the structure after the locking part and the locking mating part are engaged, according to an embodiment of this application.

[0010] Figure 4 yes Figure 3 The diagram shows a cross-sectional view of the locking part and the locking mating part after they are engaged.

[0011] Figure 5 yes Figure 3 The diagram shows a front view of the locking part and the locking mating part after they are engaged.

[0012] Figure 6 yes Figure 3 The diagram shows a cross-sectional view from another angle after the locking part and the locking mating part are engaged.

[0013] Figure 7 yes Figure 3 An exploded view of the locking part and the locking mating part shown.

[0014] Figure 8 yes Figure 3 The diagram shows a cross-sectional view of the locking part and the locking engagement part in the unlocked state.

[0015] Figure 9 This is a schematic diagram of the mechanical stirring device provided in the embodiment of this application installed on the top cover.

[0016] Figure 10 This is a side view of the mechanical stirring device provided in an embodiment of this application installed on the top cover.

[0017] Figure 11 This is a schematic diagram of the mechanical stirring device provided in an embodiment of this application, showing the mounting base and top cover in a separated state.

[0018] Figure 12 This is a schematic diagram of the mechanical stirring device provided in an embodiment of this application. In the figure, the mounting base is separated from the top cover, and part of the shell is omitted.

[0019] Figure 13 This is a schematic diagram of the upper part of the mechanical stirring device provided in the embodiments of this application.

[0020] Figure 14 This is a schematic diagram of the structure of the plug-in connector and the input shaft plug-in point provided in the embodiments of this application.

[0021] Figure 15 yes Figure 14The diagram shows the structure of the cylindrical component.

[0022] Figure 16 This is a schematic diagram of the mechanical stirring device provided in the embodiments of this application installed behind the top cover.

[0023] Figure 17 This is a schematic diagram of the structure of a portion of the rod and stirring section provided in an embodiment of this application, with some of the outer tube omitted in the figure.

[0024] Figure 18 This is a perspective view of a portion of the rod and stirring section provided in an embodiment of this application.

[0025] Figure 19 yes Figure 17 The diagram shows an exploded view of part of the rod and stirring section.

[0026] Figure 20 It is a different perspective. Figure 19 The diagram shows an exploded view of the rod section and the stirring section.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Mechanical stirring device;

[0029] 10. Shell; 20. Mounting base; 21. Guide mating part; 30. Rod part; 31. Outer tube; 32. Inner tube; 321. Support member; 40. Stirring part; 41. Outer shell; 411. Chamfer; 412. Bottom plate; 413. Top plate; 414. Protruding plate; 415. First side plate; 416. Second side plate; 417. Inner side plate; 42. Divider plate; 421. Through hole; 50. Locking mating part; 51. Outer cylinder; 511. Bottom channel; 512. Top channel; 513. Sliding mating part; 52. Inner cylinder; 521. Through hole; 522. Through groove; 523. Sliding part; 53. Live 54. Moving part; 55. Driving part; 56. Steering part; 57. Operating handle; 58. Connecting ring; 59. Nut; 50. Cover plate; 51. Elastic part; 61. Rotation drive unit; 611. Insertion connector; 6111. Cylindrical part; 61111. Second tooth; 611111. Guide surface; 611112. Separating surface; 61112. Annular conical surface; 62. Lifting drive unit; 71. Manual rotation operation unit; 72. Manual lifting operation unit; 81. Rotation reducer; 811. Input shaft; 8111. First tooth; 82. Lifting reducer; 90. Pipe fitting; 91. Scraper; 92. Clearance;

[0030] 200. Top cover; 201. Locking part; 202. Guide part; 203. Channel.

[0031] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0032] Exemplary embodiments of this application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from the content of this application.

[0033] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the equipment structure and / or processing steps closely related to the solution according to this application are shown in the accompanying drawings, while other details that are not closely related to this application are omitted.

[0034] To prevent sedimentation during the melting process of the glass matrix, a stirring device is typically used to agitate the molten radioactive waste and glass matrix within the cold crucible. This stirring device is usually installed above the cold crucible for easy agitation. To ensure proper functioning, the stirring device typically needs to be secured. However, the securing methods used in current technologies are not convenient for installing and removing the stirring device using robotic arms.

[0035] To address the technical problem that mixing devices are inconvenient to install and disassemble using robotic arms, embodiments of this application provide a mechanical mixing device, such as... Figure 1 , Figure 2 , Figure 3 , Figure 11 As shown, the mechanical stirring device 100 may include a housing 10, a mounting base 20, a rod 30, and a stirring section 40. The mounting base 20 is connected to the housing 10 and is detachably connected to the top cover 200 of the cold crucible. The rod 30 is retractably disposed within the housing 10. The stirring section 40 is connected to the rod 30 and can extend sequentially through the mounting base 20 and the top cover 200 into the crucible body of the cold crucible to stir the material inside the crucible. The top cover 200 is provided with a locking part 201, and the mounting base 20 is provided with a locking engagement part 50 for locking with the locking part 201. Through the engagement of the locking engagement part 50 and the locking part 201, the mounting base 20 is detachably connected to the top cover 200.

[0036] The mechanical stirring device 100 provided in the embodiments of this application is provided with a mounting base 20 and a locking engagement part 50. By engaging the locking engagement part 50 with the locking part 201 of the top cover 200, the mounting base 20 can be detachably connected to the top cover 200. This facilitates the installation and disassembly of the mechanical stirring device 100 by operating the locking engagement part 50 through a robotic arm or power arm in the hot chamber.

[0037] In some embodiments, the locking engagement part 50 may further include an operating handle 56, which is used for operation by a robotic arm to lock or unlock the locking engagement part 50 and the locking part 201.

[0038] like Figure 4 As shown, in some embodiments, the locking part 201 is a column member, and the locking mating part 50 may include an outer cylinder member 51, an inner cylinder member 52, a plurality of movable members 53, and a driving member 54. The outer cylinder member 51 is disposed on the mounting base 20; the inner cylinder member 52 has a through hole 521 for the column member 201 to enter and a plurality of through slots 522 distributed circumferentially along the wall of the through hole 521; each movable member 53 is movably disposed in one through slot 522; the driving member 54 is connected to the inner cylinder member 52 and is used to drive the inner cylinder member 52 to move up and down, so that the movable member 53 can abut against or separate from the column member 201 in the through hole 521. In some embodiments, there may be a plurality of movable members 53, for example, four. The movable members 53 may be spheres.

[0039] See Figure 4 and Figure 8 In some embodiments, the outer cylinder 51 may be configured to form a bottom channel 511 located below and a top channel 512 connected to the bottom channel 511, wherein the inner diameter of the top channel 512 is smaller than that of the bottom channel 511. When the inner cylinder 52 moves upward so that the through groove 522 faces the peripheral wall of the top channel 512, the movable member 53 is pressed by the peripheral wall of the top channel 512 to move along the through groove 522 to a position where it abuts against the column member 201 in the through hole 521. At this time, the locking fit 50 is locked with the locking part 201, and the mechanical stirring device 100 is fixed to the top cover 200 by the mounting base 20. When the inner cylinder 52 moves downwards so that the through groove 522 faces the peripheral wall of the bottom channel 511, the movable part 53 can move along the through groove 522 toward the peripheral wall of the bottom channel 511 to separate from the column 201. At this time, the locking engagement part 50 and the locking part 201 are unlocked, and the mechanical stirring device 100 is pulled upwards, which can separate the mounting base 20 from the top cover 200.

[0040] like Figure 5 and Figure 6As shown, in some embodiments, the drive member 54 is threadedly connected to the inner cylinder member 52. In some embodiments, the inner cylinder member 52 is provided with a sliding member 523, and the outer cylinder member 51 is correspondingly provided with a sliding engagement member 513. The inner cylinder member 52 is slidably engaged with the sliding member 523 and the sliding engagement member 513. When the drive member 54 rotates, the inner cylinder member 52 can move axially relative to the outer cylinder member 51. In some embodiments, the sliding member 523 can be a groove, and the sliding engagement member 513 can be a pin that can move along the groove. In some embodiments, the operating handle 56 is connected to the drive member 54. The operating handle 56 can be rotated by a robotic arm or a power arm to drive the drive member 54 to rotate, thereby unlocking and locking the locking engagement part 50 and the locking part 201.

[0041] like Figure 9 and Figure 10 As shown, in some embodiments, the locking engagement part 50 may further include a steering member 55. The steering member 55 is tractively connected to the drive member 54 and is rotatable about a horizontal axis. When the steering member 55 rotates about the horizontal axis, it drives the drive member 54 to rotate. The operating handle 56 is tractively connected to the steering member 55 and is used for operation by the robot arm to drive the steering member 55 to rotate about the horizontal axis. Due to the size limitation of the mounting base 20, the distance between the drive member 54 and the housing 10 is small, and the space around the drive member 54 available for operation by the robot arm or power arm is small. By setting the steering member 55, which rotates about the horizontal axis, the operating handle 56 is moved away from the housing 10, so that the operating space of the robot arm is not restricted.

[0042] like Figure 7 As shown, in some embodiments, the locking engagement 50 may further include a connecting ring 57 and a nut 58. The connecting ring 57 is fixedly connected to the top of the outer cylinder 51; the nut 58 is fixedly connected to the connecting ring 57 and has a threaded hole through which the driving member 54 passes and is threadedly connected to the inner cylinder 52. The nut 58 prevents the driving member 54 from disengaging from the inner cylinder 52. When the driving member 54 rotates to the point where the inner cylinder 52 moves downward relative to the outer cylinder 51 to its lower limit position, and then rotates again, the inner cylinder 52 provides an upward force to the driving member 54. Due to the stopping effect of the threaded nut 58, the driving member 54 cannot move upward, thus preventing separation from the inner cylinder 52. In such an embodiment, the mounting base 20 of the mechanical stirring device 100 can be reliably fixed to the top cover 200 through the cooperation between the locking part 201 and the locking mating part 50, so that the mechanical stirring device 100 can be stably fixed on the top cover 200 without other support fixing points, thereby facilitating disassembly and assembly in the hot chamber.

[0043] See Figure 6 and Figure 7In some embodiments, the connecting ring 57 has a first through hole for fixing the connecting ring 57 to the outer cylinder 51. The locking mating part 50 may also include a cover plate 59, which is disposed on the connecting ring 57 to close the first through hole on the connecting ring 57. The connecting ring 57 also has a second through hole, and an elastic member 591 is disposed at the lower part of the cover plate 59. The elastic member 591 can enter the second through hole on the connecting ring 57 to achieve the connection between the cover plate 59 and the connecting ring 57. The elastic member 591 may be a rhomboid structure formed by bending a metal wire. Through the deformation of the rhomboid structure, the cover plate 59 and the connecting ring 57 are elastically connected.

[0044] like Figure 12 As shown, in some embodiments, the top cover 200 is provided with a guide portion 202. The mounting base 20 is correspondingly provided with a guide engagement portion 21 for cooperating with the guide portion 202, so that the locking engagement portion 50 can be aligned with the locking portion 201.

[0045] In some embodiments, the number of locking portions 201 and guide portions 202 can both be two, wherein one guide portion 202 and one locking portion 201 are respectively provided at the end along the length direction of the mounting base 20; the two guide portions 202 are arranged diagonally at both ends along the length direction of the mounting base 20; the two locking portions 201 are arranged diagonally at both ends along the length direction of the mounting base 20.

[0046] In some embodiments, the guide portion 202 is a guide post with a tapered upper end, and the guide mating portion 21 is a guide hole through which the guide post 202 passes. The lower middle part of the guide post 202 is clearance-fitted with the guide hole 21. Through the mating of the guide post 202 and the guide hole 21, the column member 201 can smoothly enter the through hole 521.

[0047] like Figure 13 As shown, in some embodiments, the mechanical stirring device 100 may further include a rotation drive unit 61, a manual rotation operation unit 71, and a rotation reducer 81. The rotation drive unit 61 drives the rod 30 to rotate, thereby causing the stirring unit 40 to rotate; the manual rotation operation unit 71 is operated by a robotic arm to drive the rod 30 to rotate; the rotation reducer 81 has two input shafts and one output shaft, wherein the two input shafts are respectively connected to the rotation drive unit 61 and the manual rotation operation unit 71, and the output shaft is connected to the rod 30.

[0048] In some embodiments, the rotation drive unit 61 may include a motor. In some embodiments, the manual rotation operation unit 71 may be a handwheel. When the rotation drive unit 61 is working normally, the manual rotation operation unit 71 may rotate with the lever 30. Whether the manual rotation operation unit 71 rotates can indicate the working status of the rotation drive unit 61. When the rotation drive unit 61 stops working, the stirring unit 40 can be rotated by operating the manual rotation operation unit 71 with a power hand.

[0049] See Figure 13 In some embodiments, the mechanical stirring device 100 may further include a lifting drive unit 62, a manual lifting operation unit 72, and a lifting reducer 82. The lifting drive unit 62 is used to drive the rod 30 to move up and down within the housing 10, thereby causing the stirring unit 40 to move downwards to enter the crucible or upwards to leave the crucible. The manual lifting operation unit 72 is used for operation by a robotic arm to drive the rod 30 to move up and down; the lifting reducer 82 has two input shafts and one output shaft, wherein the two input shafts are respectively connected to the lifting drive unit 62 and the manual lifting operation unit 72, and the output shaft is connected to the rod 30.

[0050] In some embodiments, the lifting drive unit 62 may include a motor. In some embodiments, the manual lifting operation unit 72 may be a handwheel. When the lifting drive unit 62 stops working, the manual lifting operation unit 72 can be operated by a power hand to drive the lever 30 to rise or fall.

[0051] The lifting drive unit 62 can be located above the lifting reducer 82, and the manual lifting operation unit 72 can be located on the horizontal side of the lifting reducer 82, thereby facilitating the operation of the robot arm.

[0052] See Figure 11 and Figure 12 In some embodiments, the top cover 200 is provided with a channel 203 for the stirring part 40 and the rod part 30 to pass through. The mounting base 20 is installed on the periphery of the channel 203. The stirring part 40 and the rod part 30 can enter the interior of the crucible through the channel 203 to stir the glass material inside the crucible.

[0053] Because the temperature inside the crucible is high, the rod 30 and the stirring part 40 cannot stay inside the crucible for a long time. After stirring is completed, the stirring part 40 can be rotated to the position where the stirring part 40 is aligned with the channel 203 of the top cover 200 by rotating the drive unit 61 or manually rotating the operation unit 71. Then, the stirring part 40 is raised into the channel 203 by lifting drive unit 62 or manually lifting operation unit 72.

[0054] like Figure 14As shown, in some embodiments, the drive unit (rotation drive unit 61 and / or lifting drive unit 62) may include a plug-in connector 611 to achieve a transmission connection with the corresponding input shaft 811 of the reducer (rotation reducer 81 and / or lifting reducer 82) by plugging in. The plug-in connector 611 facilitates the operation of the drive unit by a robot or power arm, and facilitates the remote disassembly, assembly, and replacement of the drive unit.

[0055] In some embodiments, the input shaft 811 is provided with a plurality of first teeth 8111 extending axially in the circumferential direction. For example... Figure 15 As shown, in some embodiments, the plug-in connector 611 may include a cylindrical member 6111, the inner wall of which is provided with a plurality of axially extending second teeth 61111 that can engage with the first teeth 8111. The end of each second tooth 61111 facing the input shaft 811 forms a guide surface 611111, used to guide the first teeth 8111 into the space between two adjacent second teeth 61111. Guiding the first teeth 8111 into the space between two adjacent second teeth 61111 via the guide surface 611111 facilitates quick insertion of the plug-in connector 611 and the input shaft 811.

[0056] See Figure 15 In some embodiments, the end of the cylindrical member 6111 facing the input shaft 811 may form an annular conical surface 61112, and the end of the second tooth 61111 facing the input shaft 811 may include a partition surface 611112 and two symmetrically arranged guide surfaces 611111. The partition surface 611112 is in contact with the annular conical surface 61112 and extends along the conical surface where the annular conical surface 61112 is located toward the side away from the input shaft 811; one side of the two guide surfaces 611111 is separated by the partition surface 611112, and the other side is in contact, and each guide surface 611111 extends obliquely from the partition surface 611112 to contact the side and top surfaces of the second tooth 61111. With the above settings, when the input shaft 811 is inserted into the cylinder 6111, the first tooth 8111 can still enter the gap between two adjacent second teeth 61111 even if it is not completely aligned with the gap between the two second teeth 61111. This facilitates the mechanized hand to quickly insert the connector 611 into the input shaft 811.

[0057] Specifically, when the first tooth 8111 is aligned with the partition surface 611112 of the second tooth 61111 but not with the gap between two adjacent second teeth 61111, as the input shaft 811 continues to move toward the cylinder 6111, guided by the partition surface 611112, the first tooth 8111 will move along the partition surface 611112 to any guide surface 611111, and then enter the adjacent gap along the guide surface 611111, which is very convenient for the robot to operate.

[0058] like Figure 16 As shown, in some embodiments, the mechanical stirring device 100 may further include a pipe 90 disposed on the mounting base 20, with the rod 30 passing through the pipe 90. The inner peripheral wall of the pipe 90 facing the stirring section 40 is provided with multiple scrapers 91. When the rod 30 moves upward relative to the mounting base 20 and the pipe 90, the scrapers 91 can scrape off any glass material remaining on the rod 30, allowing the glass material to fall into the crucible through the channel 203.

[0059] During the stirring process, the rod 30 comes into contact with the glass material inside the crucible, leaving glass material residue on the rod 30. The scraper 91 prevents the residual glass material on the rod 30 from falling off and damaging the internal mechanical structure of the mechanical stirring device 100 when the rod 30 moves upward.

[0060] In some embodiments, a gap 92 may be formed between two adjacent scrapers 91 to allow glass particles remaining on the rod 30 to fall off.

[0061] In some embodiments, each scraper blade 91 extends spirally along the circumference of the tube 90. Each scraper blade 91 can overlap with another scraper blade 91 after rotating a predetermined angle about the axis of the tube 90. The scraper blades 91 extending spirally along the circumference of the tube 90 can provide tangential force, which is beneficial for scraping off glass material remaining on the rod 30, thus improving the cleaning effect.

[0062] like Figure 17 As shown, in some embodiments, the rod 30 may include an outer tube 31 and an inner tube 32 disposed within the outer tube 31. The inner tube 32 is provided with multiple sets of support members 321 for supporting the outer tube 31. The multiple sets of support members 321 are spaced apart along the axial direction, and adjacent sets of support members 321 are staggered from each other in the circumferential direction, thereby reducing the resistance to coolant flow.

[0063] In some embodiments, each set of support members 321 includes two support members 321, which are symmetrically arranged along the axis of the rod portion 30, which helps to reduce the resistance to coolant flow. In some embodiments, the support members 321 of adjacent sets are staggered by 90°, which helps to reduce the resistance to coolant flow. In some embodiments, the distance between the two support members 321 in each set can be 100mm.

[0064] like Figure 19 and Figure 20As shown, in some embodiments, the stirring unit 40 may include a housing 41 and a partition plate 42 disposed within the housing 41. The outer tube 31 is in fluid communication with the housing 41, and the partition plate 42 is connected to the inner tube 32. The partition plate 42 divides the space within the housing 41 into an upper space and a lower space. The partition plate 42 is also provided with a through hole 421 in fluid communication with the inner tube 32. The coolant entering the housing 41 through the outer tube 31 flows down into the lower space along the periphery of the partition plate 42 after entering the upper space, and then returns to the inner tube 32 through the through hole 421. The embodiments of this application divide the space within the housing 41 into an upper space and a lower space by using the partition plate 42, thus forming the aforementioned space that provides circulation flow for the coolant, which is beneficial for the circulation flow of the coolant within the housing 41.

[0065] like Figure 18 As shown, in some embodiments, the thickness of the outer shell 41 is uniform throughout. The edges of the outer shell 41 that come into contact with the high-temperature glass material are subject to wear during stirring. To ensure the proper functioning of the stirring unit 40, related technologies typically increase the thickness of the edges of the outer shell 41 that come into contact with the high-temperature glass material. However, the inventors of this application have discovered that increasing the thickness of these thicker edges makes it difficult for the coolant to effectively cool them, leading to increased susceptibility to high-temperature wear. Therefore, the inventors of this application have adjusted the thickness of the outer shell 41 at various points, ensuring that the thickness of the edges where the outer shell 41 comes into contact with the high-temperature glass material is the same as the thickness of other parts. This uniform thickness ensures that the coolant has the same cooling effect throughout the outer shell 41, thereby effectively reducing wear at the edges where the outer shell 41 comes into contact with the high-temperature glass material.

[0066] In some embodiments, the inner and outer walls of the housing 41 are chamfered at the junction of adjacent surfaces. The chamfer 411 facilitates coolant flow, reduces dead zones in coolant flow, and thus enables effective cooling of the edges, reducing wear on the stirring section 40. In some embodiments, the radius of the chamfer 411 at the junction of the inner wall of the housing 41 and adjacent surfaces can be 10±3 mm, and the radius of the chamfer 411 at the junction of the outer wall of the housing 41 and adjacent surfaces can be 20±3 mm. The mechanical stirring device 100 provided in the embodiments of this application has a larger radius of chamfer 411. A larger radius chamfer 411 facilitates coolant flow, prevents the formation of dead zones in these areas, and thus enables effective cooling of the edges.

[0067] See Figure 19 and Figure 20In some embodiments, the outer casing 41 may include a bottom plate 412, a top plate 413, two protruding plates 414, two first side plates 415, two second side plates 416, and two inner side plates 417. The bottom plate 412 extends along a first direction; the top plate 413 is disposed at the center above the bottom plate 412; the protruding plates 414 extend along the first direction, and the two protruding plates 414 are respectively disposed on both sides of the top plate 413 and are higher than the top plate 413; the first side plates 415 extend along the first direction, and each first side plate 415 is connected to the bottom plate 412, the top plate 413, and the two protruding plates 414; the two second side plates 416 are respectively disposed on both sides of the first direction, and each second side plate 416 is connected to the bottom plate 412 and one protruding plate 414; the two inner side plates 417 are respectively connected to the top plate 413 and one protruding plate 414; all the connecting points of the components of the outer casing 41 are provided with chamfers 411. The first direction may be the length direction of the stirring section 40.

[0068] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0069] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A mechanical stirring device for a cold crucible, characterized in that, The device includes: case; Mounting base, connected to the housing, the mounting base being detachably connected to the top cover of the cold crucible; The rod is telescopically disposed within the housing; A stirring section is connected to the rod section and can extend into the crucible body of the cold crucible through the mounting base and the top cover in sequence to stir the material inside the crucible body; The top cover is provided with a locking part, and the mounting base is provided with a locking engagement part for locking with the locking part. Through the engagement of the locking engagement part with the locking part, the mounting base is detachably connected to the top cover. The locking part is a column, and the locking mating part includes: The outer cylindrical component is disposed on the mounting base; An inner cylindrical component having a through hole for the column to enter and a plurality of through slots distributed circumferentially along the wall of the through hole; Multiple movable parts, each of which is movably disposed in one of the through slots; A driving component, connected to the inner cylinder, is used to drive the inner cylinder to move up and down, so that the movable component can abut against or separate from the column in the through hole. The outer cylinder is configured to form a bottom channel located below and a top channel connected to the bottom channel, wherein the inner diameter of the top channel is smaller than that of the bottom channel; When the inner cylinder moves to a position where the through groove faces the peripheral wall of the top channel, the movable member is pressed by the peripheral wall of the top channel to move along the through groove to a position where it abuts against the column in the through hole. When the inner cylinder moves to a position where the through groove faces the peripheral wall of the bottom channel, the movable member can move along the through groove toward the peripheral wall of the bottom channel to separate from the column. The drive component is threadedly connected to the inner cylinder component. The inner cylinder is provided with a sliding member, and the outer cylinder is correspondingly provided with a sliding engagement member. The inner cylinder is able to move axially relative to the outer cylinder when the driving member rotates through the sliding engagement of the sliding member and the sliding engagement member.

2. The apparatus according to claim 1, characterized in that, The locking mechanism further includes: A steering component is connected to the driving component in a transmission manner. The steering component is capable of rotating around a horizontal axis. When the steering component rotates around the horizontal axis, it drives the driving component to rotate. An operating handle is connected to the steering component for operation by the robotic arm to drive the steering component to rotate around a horizontal axis.

3. The apparatus according to claim 1, characterized in that, The locking mechanism further includes: A connecting ring is fixedly connected to the top of the outer cylinder; and A nut is fixedly connected to the connecting ring. The nut has a threaded hole, and the driving component passes through the nut and is threadedly connected to the inner cylinder.

4. The apparatus according to claim 1, characterized in that, The top cover is provided with a guide section; The mounting base is correspondingly provided with a guide engagement portion for cooperating with the guide portion, so that the locking engagement portion can be aligned with the locking portion.

5. The apparatus according to claim 4, characterized in that, The guide part is a guide post with a tapered upper end, and the guide mating part is a guide hole for the guide post to pass through.

6. The apparatus according to claim 1, characterized in that, Also includes: A drive unit is used to drive the rod to rotate, thereby driving the stirring unit to rotate; A manual operating unit is provided for the robot arm to operate, thereby driving the lever to rotate; The reducer has two input shafts and one output shaft, wherein the two input shafts are respectively connected to the drive unit and the manual operation unit, and the output shaft is connected to the lever unit.

7. The apparatus according to claim 1, characterized in that, Also includes: A drive unit is used to drive the rod to move up and down within the housing, thereby causing the stirring unit to move downwards to enter the crucible or upwards to leave the crucible. A manual operating unit is provided for the robotic arm to operate and drive the lever to rise and fall. The reducer has two input shafts and one output shaft, wherein the two input shafts are respectively connected to the drive unit and the manual operation unit, and the output shaft is connected to the lever unit.

8. The apparatus according to claim 6 or 7, characterized in that, The drive unit includes a plug-in connector to achieve a transmission connection with the corresponding input shaft of the reducer by plugging it in.

9. The apparatus according to claim 8, characterized in that, The input shaft is provided with a plurality of first teeth extending axially in the circumferential direction; The plug-in connector includes: a cylindrical member, the inner wall of which is provided with a plurality of second teeth extending axially along the circumferential direction and capable of engaging with the first toothed portion; The second tooth has a guide surface on the side facing the input shaft, which guides the first tooth to enter between two adjacent second teeth.

10. The apparatus according to claim 9, characterized in that, The cylindrical part has an annular conical surface on one side facing the input shaft. The second tooth has a partition surface and two symmetrically arranged guide surfaces on one side facing the input shaft. The partition surface is in contact with the annular conical surface and extends along the conical surface where the annular conical surface is located toward the side away from the input shaft. The two guide surfaces are separated on one side by the partition surface and connected on the other side. Each guide surface extends obliquely from the partition surface to contact the side and top surfaces of the second tooth.

11. The apparatus according to claim 1, characterized in that, The top cover has a channel for the stirring section and the rod section to pass through, and the mounting base is installed on the periphery of the channel; the device further includes: Pipe fittings are provided on the mounting base; The rod passes through the tube; The inner circumferential wall of the fitting facing the stirring part is provided with multiple scrapers. When the rod moves upward relative to the mounting base, the multiple scrapers can scrape off the glass material remaining on the rod, so that the glass material falls into the crucible through the channel.

12. The apparatus according to claim 11, characterized in that, A gap is formed between two adjacent scrapers to allow glass particles remaining on the rod to fall off.

13. The apparatus according to claim 11, characterized in that, Each of the scrapers extends spirally along the circumference of the pipe.

14. The apparatus according to claim 1, characterized in that, The rod includes an outer tube and an inner tube disposed within the outer tube. The inner tube is provided with multiple sets of support members for supporting the outer tube. The multiple sets of support members are spaced apart along the axial direction, and adjacent sets of support members are staggered from each other along the circumferential direction.

15. The apparatus according to claim 14, characterized in that, The stirring unit includes an outer shell and a partition plate disposed within the outer shell. The outer tube is in fluid communication with the outer shell, and the partition plate is connected to the inner tube. The partition plate divides the space within the outer shell into an upper space and a lower space. The partition plate is provided with a through hole that is in fluid communication with the inner tube. The coolant that enters the outer shell through the outer tube enters the upper space and then flows down along the periphery of the partition plate into the lower space, and then returns to the inner tube through the through hole.

16. The apparatus according to claim 15, characterized in that, The thickness of the outer shell is the same everywhere.

17. The apparatus according to claim 16, characterized in that, The inner and outer walls of the outer shell are chamfered at the junctions of adjacent surfaces.

18. The apparatus according to claim 17, characterized in that, in, The chamfer radius of the inner wall of the outer casing at the junction of adjacent surfaces is 10±3mm, and the chamfer radius of the outer wall of the outer casing at the junction of adjacent surfaces is 20±3mm.

Images