Weighing protection mechanism of silicon core furnace

Abstract

The utility model relates to the technical field of silicon rod production, in particular to a weighing protection mechanism of a silicon core furnace, which comprises an upper fixing plate and a lower mounting plate, a sensing component is arranged at the lower end of the upper fixing plate, and a traction component is arranged at the upper end of the lower mounting plate. The sensing assembly comprises a force transducer arranged at the lower end of the upper fixing plate, a follower wheel bracket fixedly arranged at the lower end of the force transducer and a seed crystal rope follower wheel rotationally arranged in the follower wheel bracket; the traction assembly comprises a seed crystal rope cavity and a seed crystal rope wheel rotationally arranged in the seed crystal rope cavity, and the seed crystal rope wheel is in transmission connection with an external driving mechanism. According to the utility model, by arranging the sensing assembly, the weight change of the crystal bar is monitored in real time, and when the weight is unchanged or suddenly reduced within a certain period of time, the phenomenon of bar clamping or bar falling can be quickly judged, so that measures are taken in time to avoid economic loss.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon rod production, and relates to a weighing protection mechanism for a silicon core furnace. Background Art

[0002] The silicon core furnace is an important equipment for producing crystalline silicon rods. Its working principle is to melt the silicon material through a pulling device and gradually pull it into crystalline silicon rods. In the existing silicon core furnace, due to the lack of monitoring mechanism, the crystal rods may get stuck or fall during the production process, which will not only lead to production interruption, but also may cause equipment damage and economic losses. Utility Model Content

[0003] The utility model provides a weighing protection mechanism for a silicon core furnace to solve the problems of the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a weighing protection mechanism for a silicon core furnace, comprising: an upper fixed plate and a lower mounting plate, a sensing assembly is arranged at the lower end of the upper fixed plate, a traction assembly is arranged at the upper end of the lower mounting plate, the sensing assembly comprises a force sensor arranged at the lower end of the upper fixed plate, a follower wheel bracket fixedly arranged at the lower end of the force sensor, and a seed crystal rope follower wheel rotatably arranged in the follower wheel bracket, the traction assembly comprises a seed crystal rope cavity and a seed crystal rope pulley rotatably arranged in the seed crystal rope cavity, and the seed crystal rope pulley is transmission-connected to an external driving mechanism.

[0005] A further improvement is that a first assembly hook is provided at the lower end of the upper fixed plate, a second assembly hook is provided at the upper end of the follower wheel bracket, and a first assembly groove and a second assembly groove are provided at the upper and lower ends of the force sensor respectively, the first assembly groove and the first assembly hook are provided correspondingly, and the second assembly groove and the second assembly hook are provided correspondingly.

[0006] As a further improvement, the upper fixing plate and the sensor assembly are connected by bolts.

[0007] As a further improvement, the lower mounting plate comprises a base plate and a mounting plate, the base plate is provided with an adjustment seat around it, the adjustment seat is internally threadedly connected with an adjustment bolt, and the front end of the adjustment bolt abuts against the side wall of the mounting plate.

[0008] As a further improvement, an assembly groove is provided in the mounting plate, a guide seat is provided in the assembly groove, and a seed crystal rope guide through hole is provided through the guide seat.

[0009] As a further improvement, the diameter of the lower end of the assembly groove is a, and the diameter of the lower end of the guide seat is b, satisfying the quantitative relationship: a>b.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. During the actual use of the present utility model, the seed crystal rope is led out from the seed crystal rope wheel, passes through the upper seed crystal rope follower wheel and then enters the inside of the silicon core furnace, and is connected to the lifting device. During the crystal pulling process, the force measuring sensor senses the weight of the pulled crystal rod in real time. By monitoring the weight change, the state of the crystal rod can be quickly judged. If the weight remains unchanged within a certain period of time, it can be determined that a rod jamming phenomenon has occurred; if the weight suddenly decreases, it can be judged that a rod dropping situation has occurred. Through the above method, once signs of rod jamming or rod dropping are detected, the weighing protection mechanism will immediately issue an alarm and take corresponding measures, such as suspending the pulling process or adjusting the lifting speed, to avoid further economic losses.

[0012] 2. The first assembly hook provided at the lower end of the fixed plate of the present utility model and the second assembly hook at the upper end of the follower wheel bracket are respectively arranged corresponding to the first assembly groove and the second assembly groove at the upper and lower ends of the force measuring sensor, ensuring the precise alignment and fixation of the sensor during the assembly process, simplifying the assembly process, and making the installation, adjustment and maintenance of the sensor more convenient and fast.

[0013] 3. Threaded holes are provided on the adjusting seats around the substrate of the present utility model, which are threadedly connected with the adjusting bolts. The position of the mounting plate can be precisely adjusted through the adjusting bolts in four directions to achieve the precise adjustment of the central axis, ensuring that the seed crystal corresponds correctly to the crystal pulling hole on the water-cooled screen, effectively avoiding rod jamming or rod dropping during the pulling process.

[0014] 4. A guiding seat is arranged in the assembly groove of the present utility model, and the seed crystal rope guiding through hole in the guiding seat provides support and guidance for the seed crystal rope, ensuring that the seed crystal rope is transmitted along a predetermined path, effectively reducing bending and wear, and extending the service life of the seed crystal rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the sensing component of the present utility model;

[0017] Figure 3 is the present utility model Figure 1 an enlarged view of the partial A in.

[0018] In the figure, 1 is the upper fixing plate; 11 is the first assembly hook; 2 is the lower mounting plate; 21 is the base plate; 211 is the adjusting seat; 212 is the adjusting bolt; 22 is the mounting plate; 221 is the assembly groove; 222 is the guiding seat; 2221 is the seed crystal rope guiding through hole; 3 is the sensing assembly; 31 is the force measuring sensor; 311 is the first assembly groove; 312 is the second assembly groove; 32 is the follower wheel bracket; 321 is the second assembly hook; 33 is the seed crystal rope follower wheel; 4 is the traction assembly; 41 is the seed crystal rope cavity; 42 is the seed crystal rope wheel. Detailed implementation mode

[0019] In the description of the present invention, 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 invention 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 should not be construed as a limitation to the present invention.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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 invention can be understood according to specific circumstances.

[0021] The following combines the embodiments and the attached Figures 1 to 3 , and further elaborates on the technical solutions of the present invention.

[0022] Embodiment 1

[0023] A weighing protection mechanism for a silicon core furnace includes: an upper fixing plate 1 and a lower mounting plate 2. A sensing assembly 3 is provided at the lower end of the upper fixing plate 1, and a traction assembly 4 is provided at the upper end of the lower mounting plate 2. The sensing assembly 3 includes a force measuring sensor 31 provided at the lower end of the upper fixing plate 1, a follower wheel bracket 32 fixedly provided at the lower end of the force measuring sensor 31, and a seed crystal rope follower wheel 33 rotatably provided in the follower wheel bracket 32. The traction assembly 4 includes a seed crystal rope cavity 41 and a seed crystal rope wheel 42 rotatably provided in the seed crystal rope cavity 41. The seed crystal rope wheel 42 is in transmission connection with an external driving mechanism.

[0024] As Figures 1 to 3As shown in the figure, during the actual use of the utility model, the seed crystal rope is led out from the seed crystal rope wheel 42, passes through the upper seed crystal rope follower wheel 33, and then enters the inside of the silicon core furnace, and is connected to the lifting device. During the crystal pulling process, the force measuring sensor 31 senses the weight of the pulled crystal rod in real time. By monitoring the weight change, the state of the crystal rod can be quickly judged. If the weight remains unchanged within a certain period of time, it can be determined that the rod sticking phenomenon has occurred; if the weight suddenly decreases, it can be judged that the rod dropping situation has occurred. Through the above method, once the signs of rod sticking or rod dropping are detected, the weighing protection mechanism will immediately issue an alarm and take corresponding measures, such as suspending the pulling process or adjusting the pulling speed, to avoid further economic losses.

[0025] As a further preferred embodiment, a first assembly hook 11 is provided at the lower end of the upper fixing plate 1, a second assembly hook 321 is provided at the upper end of the follower wheel bracket 32, first assembly grooves 311 and second assembly grooves 312 are respectively provided at the upper and lower ends of the force measuring sensor 31, the first assembly groove 311 and the first assembly hook 11 are correspondingly arranged, and the second assembly groove 312 and the second assembly hook 321 are correspondingly arranged.

[0026] Specifically, the first assembly hook 11 provided at the lower end of the upper fixing plate 1 and the second assembly hook 321 at the upper end of the follower wheel bracket 32 are respectively correspondingly arranged with the first assembly groove 311 and the second assembly groove 312 at the upper and lower ends of the force measuring sensor 31, ensuring the precise alignment and fixation of the sensor during the assembly process, simplifying the assembly process, and making the installation, adjustment and maintenance of the sensor more convenient and fast.

[0027] For further improvement, the upper fixing plate 1 and the sensing assembly 3 are connected by bolts.

[0028] As a further preferred embodiment, the lower mounting plate 2 includes a base plate 21 and a mounting plate 22. Adjusting seats 211 are provided around the base plate 21, adjusting bolts 212 are threadedly connected inside the adjusting seats 211, and the front end of the adjusting bolt 212 abuts against the side wall of the mounting plate 22.

[0029] Specifically, threaded holes are provided on the adjusting seats 211 around the base plate 21 to achieve threaded connection with the adjusting bolts 212. The position of the mounting plate 22 can be precisely adjusted through the adjusting bolts in four directions, realizing the precise adjustment of the central axis, ensuring the correct correspondence between the seed crystal and the crystal pulling hole on the water-cooled screen, and effectively avoiding the rod sticking or rod dropping situation during the pulling process.

[0030] As a further preferred embodiment, an assembly groove 221 is provided inside the mounting plate 22, a guiding seat 222 is provided inside the assembly groove 221, and a seed crystal rope guiding through hole 2221 is provided through the guiding seat 222.

[0031] Specifically, a guiding seat 222 is arranged in the assembly groove 221, and the seed crystal rope guiding through hole 2221 in the guiding seat 222 provides support and guidance for the seed crystal rope, ensuring that the seed crystal rope is transmitted along a predetermined path, effectively reducing bending and wear, and prolonging the service life of the seed crystal rope.

[0032] As a further preferred embodiment, the diameter of the lower end of the assembly groove 221 is a, and the diameter of the lower end of the guiding seat 222 is b, satisfying the quantitative relationship: a > b.

[0033] 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 work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A weighing protection mechanism for a silicon core furnace, characterized in that: include: An upper fixed plate (1) and a lower mounting plate (2), wherein a sensing assembly (3) is arranged at the lower end of the upper fixed plate (1), and a traction assembly (4) is arranged at the upper end of the lower mounting plate (2), wherein the sensing assembly (3) comprises a force sensor (31) arranged at the lower end of the upper fixed plate (1), a follower wheel bracket (32) fixedly arranged at the lower end of the force sensor (31), and a seed crystal rope follower wheel (33) rotatably arranged in the follower wheel bracket (32), and the traction assembly (4) comprises a seed crystal rope cavity (41) and a seed crystal rope wheel (42) rotatably arranged in the seed crystal rope cavity (41), and the seed crystal rope wheel (42) is transmission-connected to an external driving mechanism.

2. A weighing protection mechanism for a silicon core furnace according to claim 1, characterized in that: A first assembly hook (11) is arranged at the lower end of the upper fixing plate (1), a second assembly hook (321) is arranged at the upper end of the follower wheel bracket (32), and a first assembly groove (311) and a second assembly groove (312) are arranged at the upper and lower ends of the force sensor (31), respectively; the first assembly groove (311) and the first assembly hook (11) are arranged correspondingly, and the second assembly groove (312) and the second assembly hook (321) are arranged correspondingly.

3. The weighing protection mechanism of a silicon core furnace according to claim 1, characterized in that: The upper fixing plate (1) and the sensor assembly (3) are connected via bolts.

4. The weighing protection mechanism of a silicon core furnace according to claim 1, characterized in that: The lower mounting plate (2) comprises a base plate (21) and a mounting plate (22); an adjustment seat (211) is arranged around the base plate (21); an adjustment bolt (212) is internally threadedly connected to the adjustment seat (211); and a front end of the adjustment bolt (212) abuts against a side wall of the mounting plate (22).

5. The weighing protection mechanism for a silicon core furnace according to claim 4, characterized in that: An assembly groove (221) is provided in the mounting plate (22), a guide seat (222) is provided in the assembly groove (221), and a seed crystal rope guide through hole (2221) is provided through the guide seat (222).

6. The weighing protection mechanism for a silicon core furnace according to claim 5, characterized in that: The diameter of the lower end of the assembly groove (221) is a, and the diameter of the lower end of the guide seat (222) is b, satisfying the quantitative relationship: a>b.

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