Crucible extraction device

Abstract

This utility model provides a crucible extraction device, relating to the field of silicon carbide crystal growth equipment hoisting technology. The crucible extraction device includes a connector and a hoisting device. The connector is threadedly connected to the crucible and has a connecting portion for connecting to the hoisting device. The threaded connection between the connector and the crucible ensures the stability of the connection, preventing the crucible from falling off during hoisting, and also facilitates the assembly and disassembly of the connector and the crucible.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology for silicon carbide crystal growth equipment, and more specifically, to a crucible extraction device. Background Technology

[0002] The placement of the silicon carbide (SiC) crystal growth crucible is a highly precise operation with extremely high safety requirements. It mainly occurs during furnace loading before crystal growth, crystal removal after crystal growth, and equipment maintenance. Because the silicon carbide crystal growth process is usually carried out in a high-temperature, high-vacuum, or specific atmosphere environment, and the crucible contains expensive SiC source powder, seed crystals, and already grown silicon carbide crystals, any operational error can lead to significant losses.

[0003] The inventors discovered that the relevant technologies mainly achieve the hoisting of crucibles by fixing them with suction cups or claws. However, when lifting crucibles using suction cups or claws, there is a risk that the crucibles may fall off. Utility Model Content

[0004] The purpose of this invention is to provide a crucible extraction device that can ensure stable lifting of the crucible and reduce the occurrence of the crucible detaching during lifting.

[0005] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a crucible extraction device, comprising: A connector for threaded connection with a crucible, the connector having a connection portion for connection with a lifting device.

[0006] In an optional embodiment, the connector includes a top plate and a surrounding plate. The surrounding plate surrounds the outer periphery of the top plate, and the inner side of the surrounding plate is provided with an internal thread for threaded connection with the outer peripheral wall of the crucible. The outer peripheral wall of the crucible is provided with an external thread for connection with the surrounding plate.

[0007] In an optional embodiment, the top plate is provided with mounting blocks arranged at intervals along a preset direction on the side away from the surrounding plate. The mounting blocks have mounting holes with the axial direction of the mounting holes parallel to the preset direction. The lifting device is provided with mating blocks with mating holes. The mating blocks are used to be positioned between any two adjacent mounting blocks, and the mating holes are directly opposite the mounting holes. The crucible extraction device also includes a connecting rod that passes through the mounting holes of the multiple mounting blocks and the mating holes of the mating blocks along a preset direction to connect the connecting parts with the lifting device.

[0008] In an optional embodiment, two mounting blocks are provided on the side of the top plate away from the surrounding plate, spaced apart along a preset direction, and a mating block is provided between the two mounting blocks.

[0009] In an optional embodiment, the crucible extraction device further includes a limiting member sleeved on the connecting rod. The size of the limiting member is larger than the radial dimension of the mounting hole. The connecting rod passes through the mounting holes of multiple mounting blocks and the mating holes of mating blocks along a preset direction. Limiting members are installed on both ends of the connecting rod along its own axial direction. The mating block and multiple mounting blocks are located between the two limiting members. The limiting members are used to restrict the connecting rod from moving out of the mounting hole along the preset direction.

[0010] In an optional embodiment, the two ends of the connecting rod are provided with external threads, and the limiting member is provided with threaded holes that are threadedly connected to the connecting rod.

[0011] In an optional implementation, the limiting member engages with the connecting rod.

[0012] In an optional embodiment, the connecting rod is provided with a plurality of openings spaced apart along its own axial direction, the openings forming an angle with the axial direction of the connecting rod. The limiting member is used to be sleeved on the connecting rod, and the limiting member is also provided with a limiting hole opposite to the opening. The lifting device also includes a locking pin, which can pass through the limiting hole and the opening. The locking pin engages with the limiting hole and / or the opening to make the connecting rod and the limiting member detachably connected.

[0013] In an optional implementation, a cushioning pad is provided on the side of the top plate closest to the surrounding plate.

[0014] In an optional embodiment, the crucible includes a crucible body and a crucible lid. The crucible lid is disposed on the crucible body. The radial dimension of the outer peripheral wall of the crucible lid is smaller than the radial dimension of the outer peripheral wall of the crucible body. The outer peripheral wall of the crucible body is provided with an external thread that is threadedly connected to the surrounding plate.

[0015] The beneficial effects provided by this utility model embodiment include: This utility model embodiment provides a crucible extraction device including a connector and a lifting device. The connector is used for threaded connection with the crucible, and the connector is provided with a connecting part for connection with the lifting device. The threaded connection between the connector and the crucible can ensure the stability of the connection between the connector and the crucible, prevent the crucible from falling off during lifting, and also facilitate the assembly and disassembly of the connector and the crucible. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the crucible extraction device provided in this embodiment; Figure 2This is a structural schematic diagram of the connector provided in this embodiment.

[0018] Icons: 1-Crucible extraction device; 100-Connector; 110-Enclosure plate; 120-Top plate; 121-Buffer pad; 122-Mounting block; 1221-Mounting hole; 200-Connecting rod; 300-Limiting component; 2000-Lifting device; 2010-Matching block; 2011-Matching hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] The main methods used in these technologies involve hoisting the crucible using suction cups or clamps. However, when using suction cups, leaks or malfunctions in the negative pressure generator can easily cause the crucible to fall during hoisting. Similarly, when using clamps to hold the crucible, slippage or malfunctions in the hydraulic or pneumatic cylinders that drive the clamps can also lead to the crucible falling during hoisting.

[0026] In view of the above situation, this utility model provides a crucible extraction device 1 to ensure stable lifting of the crucible and reduce the occurrence of the crucible detaching during lifting.

[0027] The following section, in conjunction with the patent appendix, details the specific structure of a crucible extraction device 1 provided in this utility model embodiment and the corresponding technical effects it brings.

[0028] Please refer to Figures 1-2 The present invention provides a crucible extraction device 1 including a connector 100 and a lifting device 2000. The connector 100 is used for threaded connection with the crucible, and the connector 100 is provided with a connecting part for connection with the lifting device 2000.

[0029] Understandably, the connection between the connector 100 and the crucible is made by thread. The threaded connection can ensure the stability of the connection between the connector 100 and the crucible, prevent the crucible from falling off during hoisting, and facilitate the assembly and disassembly of the connector 100 and the crucible.

[0030] In detail, the connector 100 in this embodiment includes a top plate 120 and a surrounding plate 110. The surrounding plate 110 surrounds the outer periphery of the top plate 120. The inner side of the surrounding plate 110 is provided with an internal thread for threaded connection with the outer peripheral wall of the crucible. The outer peripheral wall of the crucible is provided with an external thread for connection with the surrounding plate 110.

[0031] In other words, in this embodiment, the connector 100 is generally formed by a top plate 120 and a surrounding plate 110 to form a cover structure. The surrounding plate 110 of the connector 100 is provided with internal threads, which mechanically lock with the outer wall of the crucible, replacing the traditional passive connection (suction cup / claw). During movement, lifting, or equipment vibration, the threaded connection can effectively resist lateral swaying and impact loads, maintaining a stable connection. This effectively avoids the risk of falling off during hoisting.

[0032] In detail, to avoid damage to the crucible lid caused by direct hard contact between the top plate 120 and the crucible lid, in some optional embodiments, a buffer pad 121 is provided on the side of the top plate 120 near the surrounding plate 110. The buffer pad 121 can be made of a flexible material, such as rubber.

[0033] In detail, the crucible includes a crucible body and a crucible lid. The crucible lid is placed on the crucible body, and the radial dimension of the outer peripheral wall of the crucible lid is smaller than the radial dimension of the outer peripheral wall of the crucible body. The outer peripheral wall of the crucible body is provided with external threads for threaded connection with the surrounding plate 110. It is understandable that providing external threads on the outer peripheral wall of the crucible body ensures a longer axially oriented thread, increasing the threaded connection length between the connector 100 and the crucible body, and improving the connection strength. Therefore, the radial dimension of the crucible lid needs to be made slightly smaller than the radial dimension of the crucible body to avoid interference between the connector 100 and the crucible.

[0034] The top plate 120 is provided with mounting blocks 122 arranged at intervals along a preset direction on the side away from the surrounding plate 110. The mounting blocks 122 have mounting holes 1221, the axis of which is parallel to the preset direction. The lifting device 2000 is provided with a mating block 2010, which has a mating hole 2011. The mating block 2010 is used to be positioned between any two adjacent mounting blocks 122, and the mating hole 2011 is directly opposite to the mounting hole 1221. The crucible extraction device 1 also includes a connecting rod 200, which passes through the mounting holes 1221 of the multiple mounting blocks 122 and the mating holes 2011 of the mating blocks 2010 along a preset direction, so that the connecting member 100 is connected to the lifting device 2000.

[0035] In other words, the mating block 2010 of the lifting device 2000 is positioned between any two mounting blocks 122, and the mating hole 2011 of the mating block 2010 is aligned with the connecting hole. The connecting rod 200 passes through the mounting holes 1221 of the multiple mounting blocks 122 and the mating hole 2011 of the mating block 2010. That is, the mating block 2010 is connected to the multiple mounting blocks 122 on the top plate 120 through the connecting rod 200, thereby enabling the crucible to be lifted by the connecting member 100.

[0036] It should be noted that "multiple" in this embodiment can be understood as two or more quantities.

[0037] In detail, in this embodiment, the top plate 120 is provided with two mounting blocks 122 spaced apart along a preset direction on the side away from the surrounding plate 110, and a mating block 2010 is disposed between the two mounting blocks 122. The mating block 2010 is disposed between the two mounting blocks 122 to ensure that the lifting device 2000 keeps the crucible relatively balanced when lifting the crucible.

[0038] Of course, in some other embodiments, the number of mounting blocks 122 can also be three, four, five or six.

[0039] To prevent the connecting rod 200 from easily dislodging from the mounting block 122, in this embodiment, the crucible extraction device 1 further includes a limiting member 300 sleeved on the connecting rod 200. The size of the limiting member 300 is larger than the radial dimension of the mounting hole 1221. The connecting rod 200 passes through the mounting holes 1221 of the multiple mounting blocks 122 and the mating holes 2011 of the mating block 2010 along a preset direction. The limiting member 300 is installed on both ends of the connecting rod 200 along its own axial direction. The mating block 2010 and the multiple mounting blocks 122 are located between the two limiting members 300. The limiting member 300 is used to restrict the connecting rod 200 from moving out of the mounting hole 1221 along the preset direction.

[0040] In this embodiment, the two ends of the connecting rod 200 are provided with external threads, and the limiting member 300 is provided with threaded holes that are threadedly connected to the connecting rod 200. That is to say, the limiting member 300 is threadedly connected to the connecting rod 200, thereby ensuring the connection strength between the limiting member 300 and the connecting rod 200, and further ensuring that the connecting rod 200 will not come out of the mounting block 122.

[0041] Optionally, in some other embodiments, the limiting member 300 can also be engaged with the connecting rod 200. For example, the limiting member 300 is provided with a first engaging portion, and the connecting rod 200 is provided with a second engaging portion that engages with the limiting member 300. Alternatively, the limiting member 300 may have an insertion hole that allows for a transition fit with the connecting rod 200.

[0042] Optionally, in other embodiments, the connecting rod is provided with a plurality of openings spaced apart along its own axial direction, the openings forming an angle with the axial direction of the connecting rod 200. The limiting member 300 is used to sleeve onto the connecting rod 200, and the limiting member 300 is also provided with limiting holes opposite to the openings. The lifting device 2000 also includes a locking pin, which can pass through the limiting hole and the opening, and engage with the limiting hole and / or the opening to allow the connecting rod 200 and the limiting member 300 to be detachably connected. It should be noted that the locking pin can engage with at least one of the opening and the limiting hole, thereby ensuring that the limiting member 300 can be fixed on the connecting rod 200.

[0043] In summary, this utility model embodiment provides a crucible extraction device 1 including a connector 100 and a lifting device 2000. The connector 100 is used for threaded connection with the crucible, and the connector 100 is provided with a connecting part for connection with the lifting device 2000. The threaded connection between the connector 100 and the crucible ensures the stability of the connection between the connector 100 and the crucible, preventing the crucible from falling off during lifting, and also facilitates the assembly and disassembly of the connector 100 and the crucible.

[0044] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A crucible extraction device, characterized in that, include: A connector (100) is used for threaded connection with a crucible, and the connector (100) is provided with a connecting part for connection with a lifting device (2000).

2. The crucible extraction device according to claim 1, characterized in that: The connector (100) includes a top plate (120) and a surrounding plate (110). The surrounding plate (110) is arranged around the outer periphery of the top plate (120). The inner side of the surrounding plate (110) is provided with an internal thread for threaded connection with the outer peripheral wall of the crucible. The outer peripheral wall of the crucible is provided with an external thread for connection with the surrounding plate (110).

3. The crucible extraction device according to claim 2, characterized in that: The top plate (120) is provided with mounting blocks (122) arranged at intervals along a preset direction on the side away from the surrounding plate (110). The mounting blocks (122) are provided with mounting holes (1221), and the axial direction of the mounting holes (1221) is parallel to the preset direction. The lifting device (2000) is provided with mating blocks (2010), and the mating blocks (2010) are provided with mating holes (2011). The mating blocks (2010) are used to be set between any two adjacent mounting blocks (122), and the mating holes (2011) are directly opposite the mounting holes (1221). The crucible extraction device also includes a connecting rod (200). The connecting rod (200) passes through the mounting holes (1221) of the multiple mounting blocks (122) and the mating holes (2011) of the mating blocks (2010) along the preset direction so that the connecting member (100) is connected to the lifting device (2000).

4. The crucible extraction device according to claim 3, characterized in that: The top plate (120) is provided with two mounting blocks (122) spaced apart along the preset direction on the side away from the surrounding plate (110), and the mating block (2010) is disposed between the two mounting blocks (122).

5. The crucible extraction device according to claim 3, characterized in that: The crucible extraction device further includes a limiting member (300) sleeved on the connecting rod (200). The size of the limiting member (300) is larger than the radial dimension of the mounting hole (1221). The connecting rod (200) passes through the mounting holes (1221) of the plurality of mounting blocks (122) and the mating hole (2011) of the mating block (2010) along the preset direction. The connecting rod (200) has limiting members (300) installed on both ends along its own axial direction. The mating block (2010) and the plurality of mounting blocks (122) are located between the two limiting members (300). The limiting member (300) is used to restrict the connecting rod (200) from moving out of the mounting hole (1221) along the preset direction.

6. The crucible extraction apparatus according to claim 5, characterized in that: The connecting rod (200) has external threads at both ends, and the limiting member (300) has threaded holes that are threadedly connected to the connecting rod (200).

7. The crucible extraction device according to claim 5, characterized in that: The limiting member (300) is engaged with the connecting rod (200).

8. The crucible extraction apparatus according to claim 5, characterized in that: The connecting rod (200) is provided with a plurality of openings spaced apart along its own axial direction. The openings are at an angle to the axial direction of the connecting rod (200). The limiting member (300) is used to be sleeved on the connecting rod (200). The limiting member (300) is also provided with a limiting hole opposite to the opening. The lifting device (2000) also includes a locking pin. The locking pin can pass through the limiting hole and the opening. The locking pin engages with the limiting hole and / or the opening so that the connecting rod (200) and the limiting member (300) can be detachably connected.

9. The crucible extraction device according to claim 2, characterized in that: A buffer pad (121) is provided on the side of the top plate (120) near the side panel (110).

10. The crucible extraction apparatus according to claim 2, characterized in that: The crucible includes a crucible body and a crucible lid. The crucible lid is placed on the crucible body. The radial dimension of the outer peripheral wall of the crucible lid is smaller than the radial dimension of the outer peripheral wall of the crucible body. The outer peripheral wall of the crucible body is provided with an external thread that is threaded to the surrounding plate (110).

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