Synchronous rotating mechanism for multiple silicon cores

Abstract

The utility model relates to the technical field of silicon rod production, in particular to a synchronous rotating mechanism for multiple silicon cores, which comprises a guide mechanism and a synchronous rotating mechanism, the guide mechanism comprises a guide rod, an upper mounting plate and a lower mounting plate, and a connecting support rod is arranged between the upper mounting plate and the lower mounting plate. The synchronous rotating mechanism comprises a driving motor, a synchronous assembly and mandrel fixing seats, the driving motor is fixedly arranged on the upper mounting plate, the synchronous assembly comprises a driving shaft, a transmission large gear and transmission small gears, and the mandrel fixing seats are arranged at the lower ends of the transmission small gears. In the drawing process, the driving motor drives the transmission large gear and the transmission small gear which are meshed with each other to rotate, finally, synchronous rotation of multiple sets of mandrel fixing seats is achieved, and drawing of multiple round silicon cores is met; and a heat insulation assembly arranged on the synchronous rotating mechanism can prevent thermal deformation of the seeding device mechanism, and plays roles in reducing heat loss of a thermal field below and preserving heat at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon rod production, and relates to a multi-core synchronous rotation mechanism. Background Art

[0002] The silicon core preparation technology is to draw a silicon core raw material rod in a circular silicon core furnace. In this method, first, a silicon core raw material rod meeting the requirements needs to be prepared in the circular silicon core furnace. After being roll-ground and cleaned, it is drawn into a circular silicon core through the silicon core furnace.

[0003] In the production process of a traditional direct-drawing silicon core furnace, the molten raw material in the quartz crucible of the direct-drawing silicon core furnace is drawn into a silicon core round rod with a diameter of about 200 mm by a single seed crystal. The above-mentioned silicon core round rod production equipment can only draw one silicon core round rod at a time. Subsequently, it needs to go through cutting and annealing processes before it can be processed into a square silicon core, and the production efficiency is relatively low and needs to be improved. Summary of the Utility Model

[0004] The utility model provides a multi-core synchronous rotation mechanism to solve the problems of the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A multi-core synchronous rotation mechanism, comprising:

[0006] A guiding mechanism, the guiding mechanism includes a guiding rod fixedly arranged on an installation plane, an upper mounting plate and a lower mounting plate slidably arranged on the guiding rod, and a connecting support rod is arranged between the upper mounting plate and the lower mounting plate;

[0007] A synchronous rotation mechanism, the synchronous rotation mechanism includes a driving motor, a synchronous component and a core shaft fixing seat. The driving motor is fixedly arranged on the upper mounting plate. The synchronous component includes a driving shaft drivingly connected to the driving motor, a driving large gear arranged at the lower end of the driving shaft, and a plurality of groups of driving small gears meshing with the driving large gear. Each group of driving small gears is provided with the core shaft fixing seat at the lower end.

[0008] Further improvement, a heat insulation component is arranged at the lower end of the lower mounting plate. The heat insulation component includes a heat insulation plate arranged at the lower end of the lower mounting plate and a heat insulation disc arranged at the lower end of the heat insulation plate.

[0009] Further improvement, the core shaft fixing seat includes a rotating shaft fixed to the driving small gear and a limiting sleeve sleeved on the upper end of the rotating shaft. The lower end of the limiting sleeve is arranged outside the lower mounting plate and a bearing is arranged inside. The rotating shaft is rotatably arranged in the limiting sleeve through the bearing.

[0010] For further improvement, two sets of large driving gears are provided. The two sets of large driving gears are respectively an outer large driving gear and an inner driving large gear. A number of mandrel fixing seats are provided on both the outer large driving gear and the inner driving large gear, and the number of mandrel fixing seats are arranged in a staggered manner.

[0011] For further improvement, a guiding mounting seat is provided on the upper mounting plate, and the upper mounting plate is slidably arranged on the guiding rod through the guiding mounting seat.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The structure of the utility model is simple. During actual use, the upper mounting plate and the lower mounting plate are controlled by an external driving mechanism to move up and down on the guiding rod to realize the drawing of silicon cores. During the drawing process, the driving motor drives the driving shaft to rotate, thereby driving the large driving gear to rotate, and the large driving gear drives the driven small gear meshing with it to rotate, finally realizing the synchronous rotation of multiple mandrel fixing seats to meet the drawing of multiple round silicon cores.

[0014] 2. The heat insulation layer of the utility model can be made of different materials such as cured felt and graphite, and its thickness can be matched according to different process conditions. The heat insulation component can avoid heat radiation upward, prevent thermal deformation of the crystal pulling device mechanism, and at the same time play a role in reducing heat loss and heat preservation of the lower heat field.

[0015] 3. By providing two sets of large driving gears, the utility model further improves the number of silicon cores drawn in the same batch and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is the utility model Figure 1 is an enlarged view of the partial A in the utility model.

[0018] In the figure, 1. guiding mechanism; 11. guiding rod; 12. upper mounting plate; 13. lower mounting plate; 14. connecting support rod; 15. guiding mounting seat; 2. synchronous rotation mechanism; 21. driving motor; 22. synchronous component; 221. driving shaft; 222. large driving gear; 2221. outer large driving gear; 2222. inner large driving gear; 223. driven small gear; 23. mandrel fixing seat; 231. rotating shaft; 232. limiting sleeve; 2321. bearing; 4. heat insulation component; 41. heat insulation plate; 42. heat insulation disc. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 therefore cannot be construed as a limitation to the present utility model.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] The following combines the embodiments and the attached Figures 1-2 drawings to further elaborate on the technical solutions of the present utility model.

[0022] Embodiment 1

[0023] A multi - strand silicon core synchronous rotation mechanism, comprising:

[0024] A guiding mechanism 1, the guiding mechanism 1 includes a guiding rod 11 fixedly arranged on the installation plane, an upper mounting plate 12 slidably arranged on the guiding rod 11, and a lower mounting plate 13, and a connecting support rod 14 is arranged between the upper mounting plate 12 and the lower mounting plate 13;

[0025] A synchronous rotation mechanism 2, the synchronous rotation mechanism 2 includes a driving motor 21, a synchronous component 22, and a core shaft fixing seat 23. The driving motor 21 is fixedly arranged on the upper mounting plate 12. The synchronous component 22 includes a driving shaft 221 in transmission connection with the driving motor 21, a driving large gear 222 arranged at the lower end of the driving shaft 221, and several groups of driving small gears 223 meshing with the driving large gear 222. Each group of driving small gears 223 is provided with the core shaft fixing seat 23 at the lower end.

[0026] As Figures 1-2 shown, the structure of the present utility model is simple. During actual use, the upper mounting plate 12 and the lower mounting plate 13 are controlled by an external driving mechanism to move up and down on the guiding rod 11 to realize the drawing of the silicon core. During the drawing process, the driving motor 21 drives the driving shaft 221 to rotate, thereby driving the driving large gear 222 to rotate, and driving the driving small gears 223 meshing with it to rotate through the driving large gear 222, finally realizing the synchronous rotation of multiple groups of core shaft fixing seats 23 to meet the drawing of multiple round silicon cores.

[0027] As a further preferred embodiment, a heat insulation component 4 is provided at the lower end of the lower mounting plate 13. The heat insulation component 4 includes a heat insulation plate 41 provided at the lower end of the lower mounting plate 13 and a heat insulation disc 42 provided at the lower end of the heat insulation plate 41. Different materials such as cured felt and graphite can be used for the heat insulation layer, and its thickness can be matched according to different process conditions. Heat insulation is achieved through the heat insulation component 4 to avoid upward heat radiation, prevent thermal deformation of the crystal pulling device mechanism, and at the same time play a role in reducing heat loss and heat preservation in the lower thermal field.

[0028] As a further preferred embodiment, the mandrel fixing seat 23 includes a rotating shaft 231 fixed to the transmission pinion 223 and a limiting sleeve 232 sleeved on the upper end of the rotating shaft 231. The lower end of the limiting sleeve 232 is provided outside the lower mounting plate 13 and a bearing 2321 is provided inside. The rotating shaft 231 is rotatably arranged in the limiting sleeve 232 through the bearing 2321. The rotating shaft 231 is limited by the limiting sleeve 232 to improve the stability of the rotating shaft 231 during the drawing process.

[0029] As a further preferred embodiment, two sets of the transmission large gears 222 are provided. The two sets of the transmission large gears 222 are respectively an outer large transmission gear 2221 and an inner transmission large gear 2222. A number of mandrel fixing seats 23 are provided on both the outer large transmission gear 2221 and the inner transmission large gear 2222. The number of mandrel fixing seats 23 is arranged in a staggered manner. By providing two sets of the transmission large gears 222, the number of silicon cores drawn in the same batch is further increased, and the production efficiency is improved.

[0030] As a further preferred embodiment, a guiding mounting seat is provided on the upper mounting plate 12. The upper mounting plate 12 is slidably arranged on the guiding rod 11 through the guiding mounting seat. Guiding is carried out through the guiding mounting seat to improve the stability of the equipment.

[0031] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A multi-silicon core synchronous rotation mechanism, characterized in that: include: A guide mechanism (1), the guide mechanism (1) comprising a guide rod (11) fixedly arranged on a mounting plane, an upper mounting plate (12) and a lower mounting plate (13) slidably arranged on the guide rod (11), a connecting support rod (14) being arranged between the upper mounting plate (12) and the lower mounting plate (13); A synchronous rotation mechanism (2), the synchronous rotation mechanism (2) comprising a drive motor (21), a synchronous assembly (22) and a spindle fixing seat (23), the drive motor (21) being fixedly arranged on the upper mounting plate (12), the synchronous assembly (22) comprising a drive shaft (221) drivingly connected to the drive motor (21), a transmission gear (222) arranged at the lower end of the drive shaft (221), and a plurality of groups of transmission pinions (223) meshing with the transmission gear (222), the spindle fixing seat (23) being arranged at the lower end of each group of transmission pinions (223).

2. A multi-silicon core synchronous rotation mechanism according to claim 1, characterized in that: A heat insulation component (4) is arranged at the lower end of the lower mounting plate (13), and the heat insulation component (4) comprises a heat insulation plate (41) arranged at the lower end of the lower mounting plate (13) and a heat insulation plate (42) arranged at the lower end of the heat insulation plate (41).

3. The multi-silicon core synchronous rotation mechanism according to claim 1, characterized in that: The spindle fixing seat (23) comprises a rotating shaft (231) fixed to the transmission pinion (223) and a limiting sleeve (232) sleeved on the upper end of the rotating shaft (231); the lower end of the limiting sleeve (232) is arranged on the outer side of the lower mounting plate (13) and a bearing (2321) is arranged inside; the rotating shaft (231) is rotatably arranged in the limiting sleeve (232) via the bearing (2321).

4. The multi-silicon core synchronous rotation mechanism according to claim 1, characterized in that: The transmission gear (222) is provided with two groups, the two groups of transmission gears (222) are respectively an outer layer transmission gear (2221) and an inner layer transmission gear (2222), and a plurality of groups of mandrel fixing seats (23) are provided on both the outer layer transmission gear (2221) and the inner layer transmission gear (2222), and the plurality of groups of mandrel fixing seats (23) are staggered.

5. The multi-silicon core synchronous rotation mechanism according to claim 1, characterized in that: A guide mounting seat is provided on the upper mounting plate (12), and the upper mounting plate (12) is slidably arranged on the guide rod (11) via the guide mounting seat.

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