Easily detachable material seat for silicon core furnace after ablation locking

Abstract

The material seat comprises a material bowl, a transition rod and a base which are sequentially arranged from top to bottom, the transition rod is provided with a center through hole, the outer wall of the transition rod is provided with a pressure relief hole communicated with the center through hole, and the lower end of the base is provided with a mounting hole used for mounting a lower shaft. A plurality of expansion grooves distributed in the length direction of the base are formed in the outer side wall of the base at intervals. Through the arrangement of the expansion groove, the locking phenomenon caused by ablation is effectively reduced, and the dismounting efficiency of the material base is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial crystals, and particularly relates to an easily detachable material seat that is prone to ablation and seizure for a silicon core furnace. Background Art

[0002] Electronic-grade polysilicon is one of the most basic raw materials in the current information industry and new energy industry, and is widely used in microelectronics technology and the photovoltaic field. Among them, in the furnace loading process, the mother material required for pulling the silicon core is fixed to the upper end of the lower shaft through a material seat, and at the same time, the upper shaft, the high-frequency coil, the mother material, and the lower shaft are ensured to be coaxial.

[0003] Since the temperature in the furnace chamber is relatively high during the pulling of the silicon core, especially in a negative pressure environment, the material seat and the lower shaft will be seized due to ablation, and the material seat cannot be removed from the lower shaft. Existing operators, in order to separate the material seat from the lower shaft, in the mild case, shake the material seat back and forth to separate the material seat from the lower shaft, and in the severe case, knock the material seat to separate the material seat from the lower shaft. The disadvantages of doing so are not only low efficiency, but also seriously affect the accuracy of the lower shaft, resulting in the lower shaft shaking during operation and thus affecting the normal pulling of the silicon core, etc. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides an easily detachable material seat that is prone to ablation and seizure for a silicon core furnace.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: an easily detachable material seat that is prone to ablation and seizure for a silicon core furnace, including a material bowl, a transition rod, and a base arranged in sequence from top to bottom. The transition rod has a central through hole, and a pressure relief hole communicating with the central through hole is arranged on the outer wall of the transition rod. The lower end of the base has a mounting hole for mounting the lower shaft, and a plurality of expansion grooves distributed along the length direction of the base are arranged at intervals on the outer side wall of the base.

[0006] As a preferred solution, the mounting hole is a tapered hole, with the small end facing upward and the large end facing downward.

[0007] As a preferred solution, a plurality of threaded holes are evenly arranged on the outer edge surface of the material bowl.

[0008] As a preferred solution, locking bolts for locking the silicon rod mother material are arranged in the threaded holes.

[0009] As a preferred solution, the material bowl, the transition rod, and the base are coaxially arranged.

[0010] As a preferred solution, a tightening mechanism is further arranged on the outer side wall of the base. The tightening mechanism includes two semi-circular hoops, the two semi-circular hoops are butted to surround the base, and the two semi-circular hoops are connected by bolts.

[0011] As a preferred solution, the base is cylindrical or polygonal.

[0012] As a preferred solution, the number of the expansion grooves is 2 - 10.

[0013] As a preferred solution, the length of the expansion groove is less than or equal to the depth of the mounting hole.

[0014] As a preferred solution, the shape of the expansion groove is arc-shaped, strip-shaped or irregular.

[0015] The beneficial effects of the present application are as follows: 1. By arranging a plurality of expansion grooves on the base in the present application, the base has a certain amount of expansion under high-temperature conditions, and the size of the expansion groove can be freely adjusted under high-temperature conditions, thereby effectively reducing the seizure phenomenon caused by ablation and significantly improving the efficiency of removing the material seat.

[0016] 2. By arranging the expansion groove, when it is necessary to remove the material seat, it is not necessary to severely shake or knock the material seat. Only by gently shaking it by hand can the base be separated from the lower shaft, thereby achieving the purpose of removing the material seat. This reduces the risk of damage to the lower shaft, helps to maintain the long-term operation accuracy and stability of the equipment, shortens the production downtime caused by difficult disassembly, is beneficial to the continuous production process, and improves the efficiency of the overall production line.

[0017] 3. And by arranging the pressure relief hole, it is avoided that the central through hole forms negative pressure during the installation of the silicon rod masterbatch, which affects the installation. Description of the Drawings

[0018] Figure 1 It is a schematic installation structure diagram of Embodiment 1 of the present utility model;

[0019] Figure 2 It is a front view of Embodiment 2 of the present utility model;

[0020] Figure 3 It is an axonometric view of Embodiment 2 of the present utility model.

[0021] Reference numerals in the drawings: 1, material bowl; 2, transition rod; 3, base; 4, pressure relief hole; 5, expansion groove; 6, lower shaft; 7, semi-circular hoop. Detailed Embodiments

[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that in the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] Please refer to Figure 1 , an easily detachable material seat for a silicon core furnace after ablation and seizure provided by an embodiment of the present utility model includes a material bowl 1, a transition rod 2 and a base 3 arranged in sequence from top to bottom. The transition rod 2 has a central through hole, and a pressure relief hole 4 communicating with the central through hole is provided on the outer wall of the transition rod 2. The lower end of the base 3 has a mounting hole for mounting a lower shaft 6, and a plurality of expansion grooves 5 distributed along the length direction of the base 3 are provided at intervals on the outer side wall of the base 3.

[0024] Among them, the material bowl 1 has a sink for mounting a silicon rod masterbatch, the central through hole communicates with the sink, the mounting hole is a tapered hole, the small end of the tapered hole faces upward, the large end faces downward, and a plurality of threaded holes are evenly distributed on the outer edge surface of the material bowl 1. Locking bolts for locking the silicon rod masterbatch are provided in the threaded holes. The number of threaded holes is an even number. In the embodiment of the present application, the number of threaded holes is two, and the corresponding locking bolts are also two. The material bowl 1, the transition rod 2 and the base 3 are coaxially arranged.

[0025] Specifically, the base 3 has a closed end and an open end. The upper end of the transition rod 2 is fixedly connected to the material bowl 1, and the lower end is fixedly connected to the closed end of the base 3. The expansion groove 5 extends from the open end to the closed end direction. The base 3 is cylindrical or polygonal, and the polygon is a quadrilateral or a pentagon or a hexagon or a heptagon or an octagon or a decagon or a dodecagon. It should be noted that the parts not detailed in the present application are all prior arts.

[0026] In addition, the number of expansion grooves 5 is 2-10. In this embodiment, the number of expansion grooves 5 is 6, and the width of the expansion groove 5 is greater than 0 mm and less than or equal to 10 mm. The length of the expansion groove 5 is less than or equal to the depth of the mounting hole, and the shape of the expansion groove 5 is arc-shaped or strip-shaped or irregular.

[0027] In this application, by providing a plurality of expansion slots 5 in the base, the base 3 has a certain amount of expansion under high-temperature conditions and can freely adjust the size of the expansion slots 5 under high-temperature conditions, thereby effectively reducing the seizure phenomenon caused by ablation and significantly improving the efficiency of removing the material seat.

[0028] When it is necessary to remove the material seat, it is not necessary to severely shake or strike the material seat. Just gently shake it by hand to separate the base 3 from the lower shaft 6, thereby achieving the purpose of removing the material seat. This reduces the risk of damage to the lower shaft, helps maintain the long-term operating accuracy and stability of the equipment, shortens the production downtime caused by difficult disassembly, is beneficial to the continuous production process, and improves the efficiency of the overall production line. Moreover, it reduces the equipment damage caused by forced disassembly, reduces the cost of equipment maintenance and replacement parts, and also reduces the maintenance workload of the operator's equipment.

[0029] Of course, the present utility model is not limited to the above-described embodiments. The following also provides several other embodiments based on the design concept of the present utility model.

[0030] For example, in the embodiment 2, different from the above-described embodiment, as Figure 2 and Figure 3 shown, specifically, a tightening mechanism is further provided on the outer side wall of the base 3. The tightening mechanism includes two semi-circular hoops 7, the two semi-circular hoops 7 are butted to surround the base 3, and the two semi-circular hoops 7 are connected by bolts.

[0031] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model all fall within the protection scope of the present utility model.

Claims

1. A material holder for silicon core furnace that can be easily disassembled after ablation and locking, characterized in that: The invention comprises a material bowl (1), a transition rod (2) and a base (3) which are arranged in sequence from top to bottom, the transition rod (2) having a central through hole, a pressure relief hole (4) which is connected to the central through hole is arranged on the outer wall of the transition rod (2), a mounting hole for mounting a lower shaft (6) is arranged at the lower end of the base (3), and a plurality of expansion grooves (5) which are distributed along the length direction of the base (3) are arranged on the outer wall of the base (3) at intervals.

2. The easily disassembled material holder after ablation and locking for silicon core furnace according to claim 1, characterized in that: The mounting hole is a tapered hole, with the small end of the tapered hole facing upward and the large end facing downward.

3. The easily disassembled material holder after ablation and locking for silicon core furnace according to claim 1, characterized in that: A plurality of threaded holes are evenly distributed on the outer edge surface of the bowl (1).

4. The easily disassembled material holder after ablation and locking for a silicon core furnace according to claim 1, characterized in that: A locking bolt for locking the silicon rod masterbatch is arranged in the threaded hole.

5. The easily disassembled material holder after ablation and locking for silicon core furnace according to claim 1, characterized in that: The material bowl (1), transition rod (2) and base (3) are coaxially arranged.

6. The easily disassembled material holder after ablation and locking for silicon core furnace according to claim 1, characterized in that: A clamping mechanism is also provided on the outer side wall of the base (3), the clamping mechanism comprising two semicircular hoops (7), the two semicircular hoops (7) are butt-jointed to surround the base (3), and the two semicircular hoops (7) are connected by bolts.

7. The easily disassembled material holder after ablation and locking for a silicon core furnace according to claim 1, characterized in that: The base (3) is cylindrical or polygonal.

8. The easily disassembled material holder after ablation and locking for silicon core furnace according to claim 1, characterized in that: The number of the expansion slots (5) is 2-10.

9. The easily disassembled material holder after ablation and locking for silicon core furnace according to claim 1, characterized in that: The length of the expansion groove (5) is less than or equal to the depth of the mounting hole.

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