Silicon core furnace lifting mechanism and silicon core furnace lifting device
By using multiple tungsten wire ropes to synchronously lift the silicon core furnace disk in the silicon core furnace lifting mechanism, the problem of tilting the silicon core furnace disk during the lifting process is solved, the molding quality of the multi-wafer rod is improved and the equipment cost is reduced.
Patent Information
- Application Number
- CN202421886056.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The existing silicon core furnace lifting mechanism can easily cause the silicon core furnace disk to tilt during the lifting process, affecting the forming quality of the multi-wafer rod.
The silicon core furnace lifting mechanism including a mounting bracket, a wire roll wheel and a wire roll wheel drive mechanism is adopted. The silicon core furnace disk is synchronized by at least three tungsten wire ropes to ensure that it remains level during the lifting process.
By synchronously lifting multiple tungsten wire ropes, ensuring that the silicon core furnace discs are always level, improving the molding quality of the multi-wafer rods and reducing equipment costs.
Smart Images
Figure CN222861714U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of polysilicon production equipment, and specifically to a silicon core furnace pulling mechanism and a silicon core furnace pulling device. Background Art
[0002] Silicon cores are mainly used for the production of high-purity polycrystalline silicon. The silicon cores used in the photovoltaic field are mostly produced by the direct pulling method to first pull out multi-wafer rods, and then cut the multi-wafer rods into square silicon cores.
[0003] In order to improve the production efficiency of silicon cores, the industry has begun to try to pull out multiple multi-wafer rods at a time. Specifically, multiple silicon core molybdenum weights are suspended under the silicon core furnace disc, and a corresponding seed crystal is fixed on each silicon core molybdenum weight. When pulling, it is necessary not only to control the rotation of each seed crystal, but also to pull the silicon core furnace disc upward to control the rise of each seed crystal, so as to pull multiple seed crystals into multiple multi-wafer rods.
[0004] Since a large number of silicon core molybdenum weights and corresponding seed crystals or multi-wafer rods are suspended under the silicon core furnace disc, the existing silicon core furnace pulling mechanism is prone to tilting during the pulling process of the silicon core furnace disc, affecting the molding quality of the multi-wafer rods. Utility Model Content
[0005] In order to solve the above technical problems, the present application provides a silicon core furnace pulling mechanism, which adopts the following technical solutions:
[0006] A silicon core furnace pulling mechanism comprises a mounting bracket, n winding wheels and a winding wheel driving mechanism, wherein:
[0007] The wire reel driving mechanism is mounted on the mounting bracket;
[0008] n winding wheels are arranged at intervals along a first direction and are drivingly connected to the movable part of the winding wheel driving mechanism, each winding wheel is wound with a tungsten wire rope, a first end of the tungsten wire rope is fixed to the winding wheel, and a second end of the tungsten wire rope is fixedly connected to the silicon core furnace disc;
[0009] The wire winding wheel driving mechanism is configured to drive n wire winding wheels to synchronously unwind n tungsten wire ropes for vertically lifting the silicon core furnace disc upward.
[0010] n≥3, and n is a positive integer.
[0011] The silicon core furnace pulling mechanism of the present application uses at least three tungsten wire ropes to synchronously pull the silicon core furnace disc upward, so that the silicon core furnace disc remains horizontal during the pulling process, ultimately ensuring the molding quality of the multi-wafer rod suspended under the silicon core furnace disc by the silicon core molybdenum weight.
[0012] In some embodiments, the connection points between the tungsten wire ropes and the silicon core furnace disk are arranged in a regular n-gon.
[0013] This ensures that the forces on the n tungsten wire ropes are consistent during the process of lifting the silicon core furnace disc, thereby further improving the lifting stability of the silicon core furnace disc.
[0014] In some embodiments, the winding wheel driving mechanism includes a rotating shaft, n sleeves and a driving assembly, wherein: the rotating shaft is rotatably mounted on a mounting bracket in a horizontal direction, and a spline extending in an axial direction is provided on the rotating shaft; n sleeves are sleeved on the rotating shaft at intervals and can slide axially along the rotating shaft; a winding wheel is fixedly sleeved on each sleeve; a spiral wire groove is provided on the winding wheel, and the tungsten wire rope is wound in the wire groove along the direction of the wire groove; the driving assembly includes a rotating driving part and n meshing guide wheels, the rotating driving part is transmission-connected to the rotating shaft, the n meshing guide wheels are fixedly mounted on the mounting bracket and correspond one-to-one with the n winding wheels, and each meshing guide wheel meshes with the wire groove on the corresponding winding wheel.
[0015] A method for implementing a winding wheel driving mechanism is provided, which drives a rotating shaft to rotate through a driving part, so that n meshing guide wheels synchronously drive n winding wheels to synchronously slide along the rotating shaft, and finally ensures that n winding wheels synchronously unwind n vertical tungsten wire ropes.
[0016] In some embodiments, the silicon core furnace pulling mechanism also includes n fixed pulleys corresponding to the winding wheels one by one; each of the fixed pulleys is located above the corresponding winding wheel, and is offset relative to the corresponding winding wheel along a direction perpendicular to the first direction. The tungsten wire rope unwound by each winding wheel passes around the corresponding fixed pulley and is fixedly connected to the silicon core furnace disc; each tungsten wire rope after passing around the corresponding fixed pulley is vertically downward and parallel to each other.
[0017] By setting n fixed pulleys corresponding to the winding wheels one by one, and using the corresponding fixed pulleys to offset the tungsten wire rope unwound by each winding wheel by a certain distance perpendicular to the first direction, the distance between the tungsten wire ropes vertically downward after bypassing the fixed pulley can be increased, thereby further improving the stability of lifting.
[0018] In some embodiments, the silicon core furnace pulling mechanism further includes n weighing sensors corresponding one to one with the fixed pulleys; the weighing sensors are arranged above the corresponding fixed pulleys, and the sensing ends of the weighing sensors are connected to the fixed pulleys.
[0019] By setting n weighing sensors corresponding to the fixed pulleys one by one, the gravity borne by the n tungsten wire ropes can be measured, and finally the weighing of the multi-wafer rods suspended under the silicon core furnace disc can be achieved.
[0020] In some embodiments, the silicon core furnace pulling mechanism also includes n installation cavities arranged on the top of the installation bracket and corresponding to the fixed pulleys one by one, and n bellows; the fixed pulley and the corresponding weighing sensor are both arranged in the installation cavity; each bellows is respectively sleeved on the outer periphery of the tungsten wire rope located between the installation cavity and the installation bracket, and the two ends of each bellows are respectively sealed and connected to the installation cavity and the installation bracket.
[0021] By providing the installation cavity, installation space is provided for the fixed pulley and the weighing sensor. By providing a corrugated tube between the installation cavity and the installation bracket, the sealing of the tungsten wire rope between the installation cavity and the installation bracket is achieved.
[0022] In some embodiments, n=3.
[0023] Under the premise of ensuring the smoothness of the lifting of the silicon core furnace disc, the equipment cost is reduced.
[0024] The present application also provides a silicon core furnace pulling device, comprising the silicon core furnace pulling mechanism described in any of the above items and n leveling connectors, wherein: the n leveling connectors are evenly installed on the silicon core furnace disc along the circumferential direction, and the n leveling connectors correspond one by one to the n tungsten wire ropes unwound by the silicon core furnace pulling mechanism; the second end of each tungsten wire rope is connected to the corresponding leveling connector.
[0025] After the n tungsten wire ropes unwound by the silicon core furnace lifting mechanism are connected to n leveling connectors one by one, the silicon core furnace disc can be ensured to be in a horizontal state when lifted by the n tungsten wire ropes by adjusting the leveling connectors. The silicon core furnace lifting mechanism unwinds n tungsten wire ropes synchronously during the process of lifting the silicon core furnace disc, so that the silicon core furnace disc is always kept horizontal, and finally ensures the molding quality of the multi-wafer rod suspended under the silicon core furnace disc by the silicon core molybdenum weight.
[0026] In some embodiments, the leveling connector includes a bolt mounting seat and a leveling bolt, wherein: the bolt mounting seat is fixedly mounted on the silicon core furnace disc; the leveling bolt is screwed on the bolt mounting seat so as to be adjustable in the vertical direction, and the second end of the tungsten wire rope is fixedly connected to the leveling bolt.
[0027] The invention provides a leveling connector with simple structure and convenient operation. By controlling the lifting and lowering of the leveling bolt, the height of the connection point between the tungsten wire rope and the leveling bolt can be adjusted.
[0028] In some embodiments, the silicon core furnace pulling device also includes a guide mechanism, which is used to guide the silicon core furnace disc to lift and lower; the guide mechanism includes m guide rods and m guide wheels, wherein: the m guide rods are vertically installed in the silicon core furnace and are evenly arranged on the circumference of the silicon core furnace disc; the m guide wheels correspond to the m guide rods one by one and are arranged in cooperation with each other, and each guide wheel is installed on the silicon core furnace disc via a mounting seat.
[0029] By setting up a guiding mechanism, the lifting and lowering guidance of the silicon core furnace disc is achieved, preventing the silicon core furnace disc from tilting or shaking when being lifted, thereby further improving the molding quality of multi-wafer rods. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a structural schematic diagram of the silicon core furnace pulling mechanism in one viewing angle after one mounting cavity is omitted in the embodiment of the present application;
[0031] Figure 2 It is a structural schematic diagram of the silicon core furnace pulling mechanism in another perspective after one installation cavity is omitted in the embodiment of the present application;
[0032] Figure 3 for Figure 2 AA section view;
[0033] Figure 4 It is a structural schematic diagram of the silicon core furnace pulling mechanism after all the mounting cavities and part of the mounting brackets are omitted in the embodiment of the present application;
[0034] Figure 5 It is a structural schematic diagram of a silicon core furnace pulling device in an embodiment of the present application;
[0035] Figure 6 It is a structural schematic diagram of the leveling connector and the guide mechanism in the embodiment of the present application.
[0036] Figures 1 to 6 Included:
[0037] Silicon core furnace pulling mechanism 10: mounting bracket 11, wire winding wheel 12, wire winding wheel driving mechanism 13, rotating shaft 131, rotating driving part 132, meshing guide wheel 133, shaft sleeve 134, tungsten wire rope 14, fixed pulley 15, weighing sensor 16, mounting cavity 17, bellows 18;
[0038] Leveling connector 20: bolt mounting seat 21, leveling bolt 22;
[0039] Guide mechanism 30: guide rod 31, guide wheel 32;
[0040] Silicon core furnace disc 100 and multi-wafer rod 200. DETAILED DESCRIPTION
[0041] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0042] like Figures 1 to 4As shown, the silicon core furnace pulling mechanism 10 in the embodiment of the present application includes a mounting bracket 11, n winding wheels 12 and a winding wheel driving mechanism 13, wherein:
[0043] The winding wheel driving mechanism 13 is mounted on the mounting bracket 11 .
[0044] N winding wheels 12 are arranged at intervals along the first direction and are drivingly connected to the movable parts of the winding wheel driving mechanism 13. A tungsten wire rope 14 is wound on each winding wheel 12. The first end of the tungsten wire rope 14 is fixed on the winding wheel 12, and the second end of the tungsten wire rope 14 is fixedly connected to the silicon core furnace disc.
[0045] The winding wheel driving mechanism 13 is configured to drive n winding wheels 12 to synchronously unwind n tungsten wire ropes 14 for vertically pulling the silicon core furnace disc upward.
[0046] n≥3, and n is a positive integer.
[0047] Since the n winding wheels 12 can implement synchronous unwinding of the n tungsten wire ropes 14, that is, the speed of lowering or winding the n tungsten wire ropes 14 is the same, therefore, it is only necessary to ensure that after the second ends of the n tungsten wire ropes 14 are fixedly connected to the silicon core furnace disc, the initial state of the silicon core furnace disc after being lifted is horizontal, so as to ensure that the silicon core furnace disc always remains horizontal during the process of the n tungsten wire ropes 14 lifting the silicon core furnace disc, and finally ensure the molding quality of the multi-wafer rod suspended under the silicon core furnace disc by the silicon core molybdenum weight.
[0048] In the embodiment of the present application, n can be 3, 4, 5, etc. In order to reduce the equipment cost, Figures 1 to 4 As shown, the value of n is 3. Three winding wheels 12 synchronously unwind three tungsten wire ropes 14 to implement the lifting of the silicon core furnace disc.
[0049] Optionally, the connection points between each tungsten wire rope 14 and the silicon core furnace disk are arranged in a regular n-gon. That is, n tungsten wire ropes 14 are connected to n connection points formed by the silicon core furnace disk to form a regular n-gon. For example, when n is 3, the three tungsten wire ropes 14 and the three connection points of the silicon core furnace disk are arranged in a regular triangle.
[0050] Such an arrangement ensures that the n tungsten wire ropes 14 are subjected to the same force during the process of lifting the silicon core furnace disc, thereby further improving the lifting stability of the silicon core furnace disc.
[0051] like Figure 3 and Figure 4As shown, optionally, the winding wheel driving mechanism 13 includes a rotating shaft 131, n sleeves 134 and a driving assembly, wherein: the rotating shaft 131 is rotatably mounted on the mounting bracket 11 in the horizontal direction (the extending direction of the rotating shaft 131 is the first direction), and a spline extending in the axial direction is provided on the rotating shaft 131. The n sleeves 134 are sleeved on the rotating shaft 131 at intervals and can slide axially along the rotating shaft 131. A winding wheel 12 is fixedly sleeved on each sleeve 134. The winding wheel 12 is provided with a spiral wire groove, and the tungsten wire rope 14 is wound in the wire groove along the direction of the wire groove. The driving assembly includes a rotating driving part 132 and n meshing guide wheels 133. The rotating driving part 132 is connected to the rotating shaft 131 in transmission. The n meshing guide wheels 133 are fixedly mounted on the mounting bracket 11 and correspond one by one to the n winding wheels 12. Each meshing guide wheel 133 meshes the tungsten wire rope with the wire groove on the corresponding winding wheel 12.
[0052] When the rotating drive unit 132 drives the n winding wheels 12 to rotate synchronously via the rotating shaft 131, the n meshing guide wheels 133 synchronously push the n winding wheels 12 to slide along the axis of the rotating shaft 131, so that the n winding wheels 12 synchronously release or reel in n tungsten wire ropes 14, and the n tungsten wire ropes 14 always remain vertical during the reeling process.
[0053] like Figure 4 As shown, optionally, the silicon core furnace pulling mechanism 10 in the embodiment of the present application further includes n fixed pulleys 15 corresponding to the winding wheels 12. Each fixed pulley 15 is located above the corresponding winding wheel 12, and is offset in a direction perpendicular to the first direction relative to the corresponding winding wheel 12. The tungsten wire rope 14 unwound by each winding wheel 12 is fixedly connected to the silicon core furnace disc after passing the corresponding fixed pulley 15. After passing the corresponding fixed pulley 15, the tungsten wire ropes 14 are all vertically downward and parallel to each other.
[0054] by Figure 2 , 4 For example, in this embodiment, there are three winding wheels 12 and three fixed pulleys 15. The three fixed pulleys 15 are respectively located above (not directly above) the corresponding winding wheels 12, and each fixed pulley 15 is offset by a certain distance perpendicular to the first direction relative to the directly above the corresponding winding wheel 12. Figure 4 As shown, among the three fixed pulleys 15, one is offset forward a certain distance perpendicular to the first direction, and two are offset backward a certain distance perpendicular to the first direction. Of course, when the offset mode of the fixed pulleys is actually arranged, it can be flexibly set according to the number of winding wheels and the required distance between each tungsten wire rope.
[0055] By setting n fixed pulleys 15 corresponding to the winding wheels 12 one by one, and using the corresponding fixed pulleys 15 to offset the tungsten wire rope unwound by each winding wheel 12 by a certain distance in a first direction perpendicular to the first direction, the distance between the tungsten wire ropes 14 vertically downward after bypassing the fixed pulley 15 can be increased, thereby further improving the stability of the lifting.
[0056] like Figure 4 As shown, optionally, the silicon core furnace pulling mechanism 10 in the embodiment of the present application further includes n weighing sensors 16 corresponding to the fixed pulleys 15. The weighing sensors 16 are arranged above the corresponding fixed pulleys 15, and the sensing ends of the weighing sensors 16 are connected to the fixed pulleys 15.
[0057] By arranging the weighing sensors 16 corresponding to the fixed pulleys 15 one by one, the gravity borne by the n tungsten wire ropes 14 is measured, and finally the weighing of the multi-wafer rods suspended under the silicon core furnace disc is achieved.
[0058] like Figure 1 As shown, optionally, the silicon core furnace pulling mechanism 10 in the embodiment of the present application further includes n mounting cavities 17 arranged on the top of the mounting bracket 11 and corresponding to the fixed pulleys 15, and n bellows 18. The fixed pulley 15 and the corresponding weighing sensor 16 are both arranged in the mounting cavity 17. Each bellows 18 is sleeved on the outer periphery of the tungsten wire rope between the mounting cavity 17 and the mounting bracket 11, and the two ends of each bellows 18 are sealed and connected to the mounting cavity 17 and the mounting bracket 11 respectively.
[0059] The installation cavity 17 is provided to provide installation space for the fixed pulley 15 and the weighing sensor 16. The bellows 18 is provided between the installation cavity 17 and the installation bracket 11 to seal the tungsten wire rope 14 between the installation cavity 17 and the installation bracket 11.
[0060] The present application also provides a silicon core furnace pulling device, such as Figures 5 and 6 As shown, the silicon core furnace pulling device in the embodiment of the present application includes the silicon core furnace pulling mechanism 10 and n leveling connectors 20 in any of the above embodiments, wherein: the n leveling connectors 20 are evenly installed on the silicon core furnace disc 100 along the circumferential direction, and the n leveling connectors 20 correspond one by one to the n tungsten wire ropes 14 unwound by the silicon core furnace pulling mechanism 10. The second ends of the tungsten wire ropes 14 are all connected to the corresponding leveling connectors 20.
[0061] After the n tungsten wire ropes 14 unwound by the silicon core furnace lifting mechanism 10 are connected one by one to the n leveling connectors 20, the leveling connectors 20 are adjusted to ensure that when the n tungsten wire ropes 14 pull up the silicon core furnace disc 100, the silicon core furnace disc 100 is in a horizontal state.
[0062] During the process of pulling the silicon core furnace disc 100, the silicon core furnace pulling mechanism 10 synchronously unwinds n tungsten wire ropes 14, so that the silicon core furnace disc 100 always remains horizontal, ultimately ensuring the molding quality of the multi-wafer rod 200 suspended under the silicon core furnace disc 100 by the silicon core molybdenum weight.
[0063] like Figure 6 As shown, optionally, the flat connector 20 includes a bolt mounting seat 21 and a leveling bolt 22, wherein: the bolt mounting seat 21 is fixedly mounted on the silicon core furnace disc 100. The leveling bolt 22 is screwed on the bolt mounting seat 21 in a vertically adjustable manner, and the second end of the tungsten wire rope 14 is fixedly connected to the leveling bolt 22.
[0064] By controlling the lifting and lowering of the leveling bolts 22, the height of the connection points between each tungsten wire rope 14 and the leveling bolts 22 can be adjusted to ensure that the silicon core furnace disc 100 is in a horizontal state when it is pulled up.
[0065] like Figure 6 As shown, optionally, the silicon core furnace lifting device in the embodiment of the present application further includes a guide mechanism 30, which is used to guide the silicon core furnace disc 100 to be lifted and lowered. The guide mechanism 30 includes m guide rods 31 and m guide wheels 32, wherein: the m guide rods 31 are vertically installed in the silicon core furnace and are evenly arranged on the circumference of the silicon core furnace disc 100. The m guide wheels 32 correspond to the m guide rods 31 one by one and are arranged in cooperation with each other, and each guide wheel 32 is installed on the silicon core furnace disc 100 via a mounting seat.
[0066] By providing the guide mechanism 30 , the lifting and lowering guidance of the silicon core furnace disc 100 is achieved, thereby preventing the silicon core furnace disc 100 from tilting or shaking when being lifted, and further improving the molding quality of the multi-wafer rod 200 .
[0067] The number m of guide rods 31 and guide wheels 32 may be the same as the number n of tungsten wire ropes 14, for example: Figure 6 As shown, m and n are both 3. Of course, the number m of the guide rods 31 and the guide wheels 32 may be different from the number n of the tungsten wire ropes 14 .
[0068] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.
Claims
1. A silicon core furnace pulling mechanism, characterized in that: The silicon core furnace pulling mechanism includes a mounting bracket, n winding wheels and a winding wheel driving mechanism, wherein: The winding wheel driving mechanism is installed on the mounting bracket; The n winding wheels are arranged at intervals along the first direction and are drivingly connected to the movable part of the winding wheel driving mechanism, each winding wheel is wound with a tungsten wire rope, the first end of the tungsten wire rope is fixed on the winding wheel, and the second end of the tungsten wire rope is fixedly connected to the silicon core furnace disc; The winding wheel driving mechanism is configured to drive n winding wheels to synchronously unwind n tungsten wire ropes for vertically pulling the silicon core furnace disc upward; n≥3, and n is a positive integer.
2. The silicon core furnace pulling mechanism according to claim 1, characterized in that: The connection points between the tungsten wire ropes and the silicon core furnace disc are arranged in a regular n-gon.
3. The silicon core furnace pulling mechanism according to claim 1, characterized in that: The winding wheel driving mechanism comprises a rotating shaft, n sleeves and a driving assembly, wherein: The rotating shaft is rotatably mounted on the mounting bracket in the horizontal direction, and a spline extending in the axial direction is provided on the rotating shaft; n sleeves are sleeved on the rotating shaft at intervals and can slide in the axial direction of the rotating shaft; each sleeve is fixedly sleeved with a winding wheel; The winding wheel is provided with a spiral groove, and the tungsten wire rope is wound in the groove along the direction of the groove; The driving assembly includes a rotating driving part and n meshing guide wheels, the rotating driving part is connected to the rotating shaft in transmission, the n meshing guide wheels are fixedly mounted on the mounting bracket and correspond one-to-one with the n winding wheels, and each of the meshing guide wheels meshes with the wire groove on the corresponding winding wheel.
4. The silicon core furnace pulling mechanism according to claim 1, characterized in that: The silicon core furnace pulling mechanism also includes n fixed pulleys corresponding one to one with the wire winding wheels; Each of the fixed pulleys is located above the corresponding winding wheel, and is offset relative to the corresponding winding wheel in a direction perpendicular to the first direction. The tungsten wire rope unwound by each winding wheel passes around the corresponding fixed pulley and is fixedly connected to the silicon core furnace disc. After passing the corresponding fixed pulleys, the tungsten wire ropes are all directed vertically downward and parallel to each other.
5. The silicon core furnace pulling mechanism according to claim 4, characterized in that: The silicon core furnace pulling mechanism also includes n weighing sensors corresponding one to one with the fixed pulleys; The weighing sensor is arranged above the corresponding fixed pulley, and the sensing end of the weighing sensor is connected to the fixed pulley.
6. The silicon core furnace pulling mechanism according to claim 5, characterized in that: The silicon core furnace pulling mechanism further includes n installation cavities arranged on the top of the installation bracket and corresponding to the fixed pulleys one by one, and n bellows; The fixed pulley and the corresponding weighing sensor are both arranged in the installation cavity; Each of the bellows is respectively sleeved on the outer periphery of the tungsten wire rope between the installation cavity and the installation bracket, and both ends of each of the bellows are respectively sealed and connected to the installation cavity and the installation bracket.
7. The silicon core furnace pulling mechanism according to claim 1, characterized in that: n＝3。 8. A silicon core furnace pulling device, characterized in that: The silicon core furnace pulling device comprises the silicon core furnace pulling mechanism according to any one of claims 1 to 7 and n leveling connectors, wherein: The n leveling connectors are evenly installed on the silicon core furnace disc along the circumferential direction, and the n leveling connectors correspond one by one to the n tungsten wire ropes unwound by the silicon core furnace pulling mechanism; The second end of each tungsten wire rope is connected to the corresponding leveling connector.
9. The silicon core furnace pulling device according to claim 8, characterized in that: The leveling connector includes a bolt mounting seat and a leveling bolt, wherein: The bolt mounting seat is fixedly mounted on the silicon core furnace disc; The leveling bolt is screwed on the bolt mounting seat so as to be adjustable in vertical direction, and the second end of the tungsten wire rope is fixedly connected to the leveling bolt.
10. The silicon core furnace pulling device according to claim 8, characterized in that: The silicon core furnace lifting device further comprises a guiding mechanism, and the guiding mechanism is used to guide the silicon core furnace disc to rise and fall; The guide mechanism includes m guide rods and m guide wheels, wherein: m guide rods are vertically installed in the silicon core furnace and are evenly arranged on the circumference of the silicon core furnace disc; m guide wheels correspond to the m guide rods one by one and are arranged in cooperation with each other, and each guide wheel is installed on the silicon core furnace disc via a mounting seat.