Self-balancing large-size silicon carbide crucible rotating and lifting mechanism

Abstract

The application discloses a self-balancing large-size silicon carbide crucible rotating and lifting mechanism and particularly relates to the technical field of crucible lifting, which comprises two lifting pressure groove plates, a controller, synchronous electric cylinders and a double-joint synchronous balance lifting assembly; wherein the double-joint synchronous balance lifting assembly comprises a pressure sensor, an arc-shaped strip, a plurality of carbon fiber upper ropes, an inclined sleeve block, an upper corner block, an inclined column and an inclined groove plate. The double-joint synchronous balance lifting assembly has the advantages of being applicable to a plurality of points on the bottom of the outer wall and a plurality of points on the top of the inner wall of a large-size crucible, realizing synchronous constant force self-balancing stress on the circular arc peripheral part, synchronous stress being uniform and stable, and excellent lifting effect, so as to solve the problems of difficult realization of synchronous and uniform self-balancing stress lifting of the plurality of points on the top of the inner wall and the bottom of the outer wall, and poor stability of the large-size silicon carbide crucible in the lifting process.

Description

Technical Field

[0001] This invention relates to the field of crucible lifting technology, and more specifically, to a self-balancing large-size silicon carbide crucible rotary lifting mechanism. Background Technology

[0002] The self-balancing large-size silicon carbide crucible rotation and lifting mechanism can clamp and fix the crucible to a suitable height during equipment maintenance and crystal removal, making it convenient for operators to carry out operations and improving work efficiency and safety. Secondly, the tilting can be achieved by changing the orientation through rotation.

[0003] Among existing publicly available documents, patent publication number CN212356392U discloses a lifting mechanism for a smelting furnace. This technology uses a groove in the column to form a guide rail, which cooperates with guide wheels on the opposing surfaces of two connecting plates B to form a rolling pair. The connecting plates A are connected to the device to be lifted by fasteners. A lifting motor and a reducer drive a movable support seat to reciprocate up and down along the column. The reciprocating motion of the movable support seat realizes the up and down movement of the device to be lifted. The structure is simple, easy to implement, improves labor efficiency, and reduces labor intensity. However, this technology still has the following drawbacks.

[0004] When rotating and lifting large-sized silicon carbide crucibles, a problem arises during the lifting and fixing process: there are multiple points on the top of the inner wall of the large-sized silicon carbide crucible, and there are also multiple points on the bottom of the outer wall. This makes it difficult to achieve synchronous and uniform self-balancing force on these multiple points on the top of the inner wall and the bottom of the outer wall. Due to the difficulty in achieving a uniform force to achieve a self-balancing state, the stability of the large-sized silicon carbide crucible is poor during the lifting process. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: a self-balancing large-size silicon carbide crucible rotation lifting mechanism, comprising two lifting pressure plates and a controller, wherein a synchronous electric cylinder is fixedly installed on the inner wall of each lifting pressure plate, and a double-crank synchronous balancing lifting assembly is provided at the output end of the synchronous electric cylinder; the double-crank synchronous balancing lifting assembly includes a pressure sensor fixedly installed at the output end of the synchronous electric cylinder, and an arc-shaped strip is fixedly connected to the lower surface of the pressure sensor, and multiple carbon fiber upper ropes are fixedly connected to the arc-shaped strip.

[0006] Each carbon fiber upper rope is fixedly connected to an inclined sleeve block at its top end. An upper corner block is fixedly connected to the lower inclined surface of the inclined sleeve block. An inclined column is slidably connected to the inner wall of the inclined sleeve block. An inclined groove plate is fixedly connected to the top of the inclined column. An extrusion spring inclined groove plate is provided above the carbon fiber upper rope. The inclined sleeve block and the inclined groove plate are both fixedly connected to the extrusion spring inclined groove plate. The arc-shaped strip and the carbon fiber upper rope are slidably connected to the lifting pressure groove plate. The cross-sectional shape of the arc-shaped strip is circular. Multiple carbon fiber upper ropes are arranged in an arc-shaped, equidistant distribution. The carbon fiber upper rope is slidably connected to the inclined groove plate, the lifting pressure groove plate is fixedly connected to the inclined groove plate, and the inclined sleeve block is slidably connected to the inclined groove plate. The synchronous electric cylinder and the pressure sensor are both electrically connected to the controller. A smooth column is fixedly connected to one side of the inclined groove plate, and the smooth column is slidably connected to the carbon fiber upper rope.

[0007] In operation, the output of the synchronous electric cylinder drives the pressure sensor downward, and the arc-shaped strip drives multiple carbon fiber upper ropes to move downward synchronously. The carbon fiber upper ropes drive the tilting sleeve block to tilt downward, and the carbon fiber upper rope slides stably on the outer wall of the smooth column. At the same time, the tilting sleeve block tilts downward along the outer wall of the inclined column, pressing against the tilting groove plate of the extrusion spring. The tilting groove plate of the extrusion spring deforms, and the multiple upper corner blocks can achieve synchronous self-balancing force at multiple points on the top of the inner wall of the large-sized crucible.

[0008] Preferably, a plurality of carbon fiber lower ropes are fixedly connected to the upper surface edge of the arc-shaped strip, and the lifting pressure plate is slidably connected to the carbon fiber lower ropes; a sleeve slider is slidably connected to the outer wall of the carbon fiber lower rope, and the sleeve slider is fixedly connected to the lifting pressure plate; a sliding sleeve is fixedly connected to the bottom end of the carbon fiber lower rope; a guide rod is slidably connected to the inner wall of the sliding sleeve; a grooved frame is slidably connected to the outer wall of the sliding sleeve, and the guide rod is fixedly connected to the grooved frame; and a lower corner block is fixedly connected to the upper inclined surface of the sliding sleeve.

[0009] A large-sized crucible is positioned between the two lifting pressure plates. The carbon fiber lower rope is slidably connected to the inclined frame, and multiple carbon fiber lower ropes are arranged in an arc-shaped, equidistant distribution. The outer walls of multiple guide rods are smooth surfaces, and multiple inclined frames are fixedly connected to the lifting pressure plates.

[0010] In operation, when the arc-shaped strip moves downward, it causes the tips of multiple carbon fiber lower ropes to move downward as well. Simultaneously, the inclined frame supports the guide rod, and the sliding sleeve causes the lower corner blocks to tilt upward. These lower corner blocks then simultaneously press against multiple points on the bottom of the large-sized crucible's outer wall, achieving synchronized self-balancing force. A pressure sensor detects the pressure value. When the pressure value detected by the sensor matches the pressure value set by the controller, the controller shuts off the synchronous electric cylinder. The multiple upper corner blocks then apply synchronized, constant force to multiple points on the top of the large-sized crucible's inner wall, achieving synchronized, constant force self-balancing force on the circumference of the arc. Simultaneously, the multiple lower corner blocks apply synchronized, constant force to multiple points on the bottom of the large-sized crucible's outer wall, achieving synchronized, constant force self-balancing force on the circumference of the arc.

[0011] Preferably, a support frame is installed on the outer wall of the lifting pressure plate; both lifting pressure plates are slidably connected to the support frame, and a compression electric cylinder is fixedly installed at both ends of the support frame. The output end of the compression electric cylinder is fixedly connected to the lifting pressure plate and slidably connected to the support frame. A rotary motor is installed on one side of the support frame, and the output end of the rotary motor is fixedly connected to the support frame. A sleeve plate is fixedly connected to the outer wall of the rotary motor, and a connecting shaft is fixedly connected to the upper surface of the sleeve plate. A lifting electric cylinder is installed at the top of the connecting shaft, and a connecting plate is fixedly connected to the outer wall of the lifting electric cylinder. The controller is fixed to the outer wall of the connecting plate, and multiple mounting holes are opened at the top of the connecting plate.

[0012] The output end of the lifting electric cylinder is fixedly connected to the connecting shaft, and both the rotary motor and the lifting electric cylinder are electrically connected to the controller. The vertical cross-sectional shape of the socket plate is L-shaped, and the plurality of mounting holes are arranged in a rectangular distribution, with the vertical cross-sectional shape of each of the mounting holes being circular.

[0013] In operation, this technology utilizes a lifting electric cylinder to elevate the connecting shaft, which in turn elevates the rotary motor via a sleeve plate. The support frame elevates two extrusion electric cylinders, and two lifting pressure plates elevate the large-size crucible. An inclined groove plate elevates the inclined column, an inclined sleeve block elevates the upper corner block, the lifting pressure plate elevates the inclined frame, and a sliding sleeve elevates the lower corner block. The lower corner block then elevates the bottom of the large-size crucible, allowing for more stable self-balancing and constant force lifting. The rotary motor drives the support frame to rotate, which in turn rotates the two lifting pressure plates, which in turn rotate the large-size crucible.

[0014] The technical effects and advantages of this invention are as follows:

[0015] 1. This invention employs a dual-crank synchronous balancing lifting assembly. A controller activates two synchronous electric cylinders, and a pressure sensor causes the arc-shaped strip components to move in tandem. The tilting sleeve drives the upper corner blocks to tilt downwards, enabling multiple upper corner blocks to achieve synchronous self-balancing force on multiple points at the top of the crucible's inner wall. Simultaneously, the downward movement of the arc-shaped strip causes the bottom ends of multiple carbon fiber lower ropes to tilt upwards, moving upwards along the guide rod via a sliding sleeve. This allows multiple lower corner blocks to synchronously press multiple points at the bottom of the crucible's outer wall, achieving synchronous self-balancing force. By sensing the pressure value at the output of the synchronous electric cylinders using a pressure sensor, multiple points at the bottom of the outer wall and multiple points at the top of the inner wall of a large-sized crucible can achieve synchronous, constant force self-balancing force on the upper and lower parts of the arc circumference, resulting in uniform and stable synchronous force and excellent lifting effect.

[0016] 2. This invention rapidly and synchronously starts two synchronous electric cylinders through a controller, enabling multiple upper and lower carbon fiber ropes to work together efficiently. The inclined guide mechanical transmission is smooth and quickly transmits power to the action part. Secondly, the upper and lower double cranks move synchronously, with multiple upper and lower corner blocks simultaneously applying force to multiple points on the upper and lower parts of the crucible's arc circumference. This quickly achieves synchronous constant force self-balancing, saving the time of applying force at single points or in steps. There is no redundant operation, fewer points of failure, and stable and rapid operation, which greatly shortens the force balancing time of large-size crucibles and improves production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the self-balancing large-size silicon carbide crucible rotation and lifting mechanism of the present invention.

[0018] Figure 2 This is a schematic diagram of the vertical cross-section of the self-balancing large-size silicon carbide crucible rotation and lifting mechanism of the present invention.

[0019] Figure 3 This is a partial structural diagram of the vertical cross-section at the connection between the arc-shaped strip and the carbon fiber upper rope of the present invention.

[0020] Figure 4 This is a partial structural diagram of the vertical section cut at the connection between the inclined groove plate of the extrusion spring and the smooth column of the present invention.

[0021] Figure 5 This is a partial front view structural diagram of the connection between the arc-shaped strip and the carbon fiber lower rope of the present invention.

[0022] Figure 6 This is a schematic diagram of a partial structure cut off at the connection between the pressure sensor and the arc-shaped strip of the present invention.

[0023] Figure 7 This is a partial structural diagram of the vertical cross-section of the connection between the grooved frame and the lifting pressure plate of the present invention.

[0024] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle.

[0025] Figure 9 This is a bottom view schematic diagram of the self-balancing large-size silicon carbide crucible rotation and lifting mechanism of the present invention.

[0026] The attached diagram is labeled as follows: 1. Lifting pressure groove plate; 2. Synchronous electric cylinder; 3. Pressure sensor; 4. Arc-shaped strip; 5. Carbon fiber upper rope; 6. Inclined sleeve block; 7. Upper corner block; 8. Inclined column; 9. Extrusion spring inclined groove plate; 10. Inclined groove plate; 11. Smooth column; 12. Carbon fiber lower rope; 13. Sleeve slider; 14. Sliding sleeve; 15. Guide inclined rod; 16. Groove inclined frame; 17. Lower corner block; 18. Large-size crucible; 19. Extrusion electric cylinder; 20. Support frame; 21. Rotary motor; 22. Sleeve plate; 23. Connecting shaft; 24. Lifting electric cylinder; 25. Sleeve plate; 26. Controller; 27. Mounting hole. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] As attached Figure 1 - Appendix Figure 9 The diagram shows a self-balancing large-size silicon carbide crucible rotary lifting mechanism. This mechanism is equipped with a double-crank synchronous balancing lifting component. The double-crank synchronous balancing lifting component enables synchronous and stable force self-balancing at multiple points on the bottom of the outer wall and multiple points on the top of the inner wall of the large-size crucible 18, resulting in excellent lifting performance. The specific structural configuration of the double-crank synchronous balancing lifting component is as follows.

[0029] In this embodiment, as shown in the appendix Figure 1 - Appendix Figure 6 As shown, a synchronous electric cylinder 2 is fixedly installed on the inner wall of each lifting pressure plate 1. The output end of the synchronous electric cylinder 2 is provided with a double-crank synchronous balance lifting assembly. The double-crank synchronous balance lifting assembly includes a pressure sensor 3 fixedly installed at the output end of the synchronous electric cylinder 2. An arc-shaped strip 4 is fixedly connected to the lower surface of the pressure sensor 3. Multiple carbon fiber upper ropes 5 are fixedly connected to the arc-shaped strip 4.

[0030] Each carbon fiber upper rope 5 is fixedly connected to an inclined sleeve block 6 at its top. An upper corner block 7 is fixedly connected to the lower inclined surface of the inclined sleeve block 6. An inclined column 8 is slidably connected to the inner wall of the inclined sleeve block 6. An inclined groove plate 10 is fixedly connected to the top of the inclined column 8. An extrusion spring inclined groove plate 9 is provided above the carbon fiber upper rope 5. Both the inclined sleeve block 6 and the inclined groove plate 10 are fixedly connected to the extrusion spring inclined groove plate 9. The arc-shaped strip 4 and the carbon fiber upper rope 5 are slidably connected to the lifting pressure groove plate 1. The cross-sectional shape of the arc-shaped strip 4 is circular. Multiple carbon fiber upper ropes 5 are arranged in an arc-shaped, equidistant distribution. The carbon fiber upper rope 5 is slidably connected to the inclined groove plate 10, the lifting pressure groove plate 1 is fixedly connected to the inclined groove plate 10, and the inclined sleeve block 6 is slidably connected to the inclined groove plate 10. The synchronous electric cylinder 2 and the pressure sensor 3 are both electrically connected to the controller 26.

[0031] In this embodiment, as shown in the appendix Figure 4 As shown, a smooth column 11 is fixedly connected to one side of the inclined groove plate 10, and the smooth column 11 is slidably connected to the carbon fiber upper rope 5. The outer wall of the smooth column 11 is a smooth surface so that the carbon fiber upper rope 5 can slide stably on the outer wall of the smooth column 11.

[0032] In this embodiment, as shown in the appendix Figure 3 - Appendix Figure 8 As shown, multiple carbon fiber lower ropes 12 are fixedly connected at the edge of the upper surface of the arc-shaped strip 4, and the lifting pressure plate 1 is slidably connected to the carbon fiber lower ropes 12; a sleeve slider 13 is slidably connected to the outer wall of the carbon fiber lower rope 12, and the sleeve slider 13 is fixedly connected to the lifting pressure plate 1; a sliding sleeve 14 is fixedly connected to the bottom end of the carbon fiber lower rope 12.

[0033] The inner wall of the sliding sleeve 14 is slidably connected to a guide rod 15, and the outer wall of the sliding sleeve 14 is slidably connected to a grooved frame 16. The guide rod 15 and the grooved frame 16 are fixedly connected. A lower corner block 17 is fixedly connected to the upper inclined surface of the sliding sleeve 14. A large-size crucible 18 is provided between the two lifting pressure plates 1. The carbon fiber lower rope 12 is slidably connected to the grooved frame 16, and multiple carbon fiber lower ropes 12 are arranged in an arc with equal spacing. The outer walls of the multiple guide rods 15 are all smooth surfaces, and the multiple grooved frames 16 are all fixedly connected to the lifting pressure plates 1.

[0034] In this embodiment, as shown in the appendix Figure 9 As shown, a support frame 20 is installed on the outer wall of the lifting pressure plate 1; both lifting pressure plates 1 are slidably connected to the support frame 20; both ends of the support frame 20 are fixedly installed with extrusion cylinders 19; the output end of the extrusion cylinder 19 is fixedly connected to the lifting pressure plate 1; the output end of the extrusion cylinder 19 is slidably connected to the support frame 20; a rotary motor 21 is installed on one side of the support frame 20; the output end of the rotary motor 21 is fixedly connected to the support frame 20.

[0035] A sleeve plate 22 is fixedly connected to the outer wall of the rotary motor 21. A connecting shaft 23 is fixedly connected to the upper surface of the sleeve plate 22. A lifting cylinder 24 is mounted on the top of the connecting shaft 23, and a connecting plate 25 is fixedly connected to the outer wall of the lifting cylinder 24. A controller 26 is fixed to the outer wall of the connecting plate 25, and multiple mounting holes 27 are provided on the top of the connecting plate 25. The output end of the lifting cylinder 24 is fixedly connected to the connecting shaft 23. Both the rotary motor 21 and the lifting cylinder 24 are electrically connected to the controller 26. The vertical cross-section of the connecting plate 25 is L-shaped, and the multiple mounting holes 27 are arranged in a rectangular distribution. The vertical cross-section of each of the mounting holes 27 is circular.

[0036] The working principle of the self-balancing large-size silicon carbide crucible rotary lifting mechanism of this invention is as follows:

[0037] First, during installation, bolts are inserted into multiple mounting holes 27 to suspend and fix the socket plate 25 on the wall frame. The socket plate 25 supports the lifting cylinder 24. The controller 26 activates two pressing cylinders 19, which push the two lifting pressure plates 1 closer to each other. The two lifting pressure plates 1 can move closer to each other along the inner wall of the support frame 20. The inner walls of the two lifting pressure plates 1 press against the outside of the large crucible 18, thus achieving the lifting and fixing operation of the middle part of the large crucible 18.

[0038] Secondly, during the synchronous force-balanced lifting of the upper and lower double-crank system, the controller 26 activates two synchronous electric cylinders 2, lifting the pressure plate 1 to support the synchronous electric cylinders 2. The output end of the synchronous electric cylinder 2 drives the pressure sensor 3 to move downward, the pressure sensor 3 drives the arc strip 4 to move downward, and the arc strip 4 drives multiple carbon fiber upper ropes 5 to move downward synchronously. The carbon fiber upper ropes 5 slide downward along the inner wall of the inclined groove plate 10. At the same time, the carbon fiber upper ropes 5 drive the inclined sleeve block 6 to move downward at an angle. The inclined sleeve block 6 moves downward at an angle along the inner wall of the inclined groove plate 10, and the carbon fiber upper rope 5 slides stably on the outer wall of the smooth column 11. The inclined sleeve block 6 also moves downward at an angle along the outer wall of the inclined column 8. The inclined sleeve block 6 presses against the inclined groove plate 9 of the extrusion spring, causing the inclined groove plate 9 to deform. In this way, the inclined sleeve block 6 drives the upper corner block 7 to move downward at an angle. Multiple upper corner blocks 7 can achieve synchronous self-balancing force at multiple points on the top of the inner wall of the large-size crucible 18.

[0039] Simultaneously, as the arc-shaped strip 4 moves downward, it causes the top ends of multiple carbon fiber lower ropes 12 to move downward. The carbon fiber lower ropes 12 slide downward along the inner wall of the connecting slider 13. As the top ends of the carbon fiber lower ropes 12 move downward, the bottom ends of the carbon fiber lower ropes 12 cause the sliding sleeve 14 to tilt upward, thus raising the pressure plate 1 to support multiple slotted frames 16. The slotted frames 16 support the guide rod 15, and the sliding sleeve 14 tilts upward along the outer wall of the guide rod 15. The sliding sleeve 14 causes the lower corner blocks 17 to tilt upward, so that multiple lower corner blocks 17 will simultaneously press against multiple points on the bottom of the outer wall of the large-size crucible 18 to achieve synchronous self-balancing force. The pressure sensor 3 senses the pressure at the output end of the synchronous electric cylinder 2, causing the sensing end of the pressure sensor 3 to shift and thus sense the resulting pressure value. When the pressure value sensed by the pressure sensor 3 matches the pressure value set by the controller 26, the controller 26 shuts off the synchronous electric cylinder 2. This allows multiple upper corner blocks 7 to simultaneously apply a constant force to multiple points on the top of the inner wall of the large-size crucible 18, achieving a self-balancing force on the arc-shaped circumference. Simultaneously, multiple lower corner blocks 17 simultaneously apply a constant force to multiple points on the bottom of the outer wall of the large-size crucible 18, achieving a more uniform and stable self-balancing force on the arc-shaped circumference.

[0040] Finally, during the lifting and rotation process, the lifting cylinder 24 is supported by the sleeve plate 25. The controller 26 activates the lifting cylinder 24, which in turn moves the connecting shaft 23 upwards. The connecting shaft 23 then moves the sleeve plate 22 upwards, which in turn moves the rotary motor 21 upwards. The rotary motor 21 moves the support frame 20 upwards, which in turn moves the two extrusion cylinders 19 upwards. The two extrusion cylinders 19 then move the two lifting pressure plates 1 upwards, which in turn move the large-size crucible 18 upwards. Simultaneously, the lifting pressure plates 1 move the inclined plate 10 upwards, which in turn moves the inclined column 8 upwards. The inclined column 8 moves the inclined sleeve block 6 upwards, which in turn moves the upper corner block 7 upwards, which in turn moves the large-size crucible 18 upwards. At the same time, the lifting pressure plate 1 drives the groove inclined frame 16 to move upward and lift. The groove inclined frame 16 drives the guide inclined rod 15 to move the sliding sleeve 14 upward and lift. The sliding sleeve 14 drives the lower corner block 17 to move upward and lift. The lower corner block 17 drives the bottom of the large-size crucible 18 to move upward and lift. In this way, the large-size crucible 18 can be lifted more stably by self-balancing constant force.

[0041] The support frame 20 is driven to rotate by the rotary motor 21. The support frame 20 drives the two lifting pressure plates 1 to rotate, and the two lifting pressure plates 1 drive the large crucible 18 to rotate, which facilitates the angle switching of the large crucible 18 and facilitates the rotation and lifting operation of the large crucible 18.

[0042] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-balancing large-size silicon carbide crucible rotating lifting mechanism, comprising two lifting pressure groove plates (1) and a controller (26), the inner wall of each lifting pressure groove plate (1) is fixedly installed with a synchronous electric cylinder (2), characterized in that: The output end of the synchronous electric cylinder (2) is provided with a double-joint synchronous balance lifting assembly; The double-joint synchronous balance lifting assembly comprises a pressure sensor (3) fixedly arranged at the output end of the synchronous electric cylinder (2), the lower surface of the pressure sensor (3) is fixedly connected with an arc-shaped strip (4), and a plurality of carbon fiber upper ropes (5) are fixedly connected to the arc-shaped strip (4). The top end of each carbon fiber upper rope (5) is fixedly connected with an inclined sleeve block (6), the lower inclined surface of the inclined sleeve block (6) is fixedly connected with an upper corner block (7), the inner wall of the inclined sleeve block (6) is slidably connected with an inclined column (8), the top end of the inclined column (8) is fixedly connected with an inclined groove plate (10), the upper side of the carbon fiber upper rope (5) is provided with an extrusion spring inclined groove plate (9), and the inclined sleeve block (6) and the inclined groove plate (10) are fixedly connected with the extrusion spring inclined groove plate (9). The upper surface edge position of the arc-shaped strip (4) is fixedly connected with a plurality of carbon fiber lower ropes (12), and the lifting pressure groove plate (1) is slidably connected with the carbon fiber lower ropes (12). The outer wall of the carbon fiber lower rope (12) is slidably connected with a sleeved sliding block (13), the sleeved sliding block (13) is fixedly connected with the lifting pressure groove plate (1), the bottom end of the carbon fiber lower rope (12) is fixedly connected with a sliding sleeve (14), and when the arc-shaped strip (4) moves downward, the bottom end of the carbon fiber lower rope (12) drives the sliding sleeve (14) to move upward obliquely, the inner wall of the sliding sleeve (14) is slidably connected with a guide inclined rod (15), the outer wall of the sliding sleeve (14) is slidably connected with a groove inclined frame (16), the guide inclined rod (15) is fixedly connected with the groove inclined frame (16), and the upper inclined surface of the sliding sleeve (14) is fixedly connected with a lower corner block (17). Two lifting pressure groove plates (1) are provided between the two lifting pressure groove plates (1).

2. The self-balancing large size SiC crucible rotating lifting mechanism according to claim 1, characterized in that: The arc-shaped strip (4) and the carbon fiber upper rope (5) are slidably connected with the lifting pressure groove plate (1), and the cross-sectional shape of the arc-shaped strip (4) is arc-shaped. A plurality of carbon fiber upper ropes (5) are arranged in a circular arc equidistant distribution.

3. The self-balancing large size SiC crucible rotating lifting mechanism according to claim 1, characterized in that: The carbon fiber upper rope (5) is slidably connected with the inclined groove plate (10), the lifting pressure groove plate (1) is fixedly connected with the inclined groove plate (10), and the inclined sleeve block (6) is slidably connected with the inclined groove plate (10). The synchronous electric cylinder (2) and the pressure sensor (3) are electrically connected with the controller (26).

4. The self-balancing large size SiC crucible rotating lifting mechanism according to claim 1, characterized in that: One side of the inclined groove plate (10) is fixedly connected with a smooth column (11), and the smooth column (11) is slidably connected with the carbon fiber upper rope (5).

5. The self-balancing large size SiC crucible rotating lifting mechanism according to claim 1, characterized in that: The carbon fiber lower rope (12) is slidably connected with the groove inclined frame (16), and a plurality of carbon fiber lower ropes (12) are arranged in a circular arc equidistant distribution.

6. The self-balancing large size SiC crucible rotating lifting mechanism according to claim 1, characterized in that: The outer walls of a plurality of guide inclined rods (15) are smooth surfaces, and a plurality of groove inclined frames (16) are fixedly connected with the lifting pressure groove plate (1).

7. The self-balancing large size SiC crucible rotating lifting mechanism according to claim 1, characterized in that: A support frame (20) is mounted on the outer wall of the lifting pressure groove plate (1). Both the lifting pressure groove plates (1) are in sliding connection with the support frames (20), both ends of the support frames (20) are fixedly provided with extrusion electric cylinders (19), the output ends of the extrusion electric cylinders (19) are fixedly connected with the lifting pressure groove plates (1), the output ends of the extrusion electric cylinders (19) are in sliding connection with the support frames (20), one side of the support frames (20) is provided with a rotary motor (21), the output end of the rotary motor (21) is fixedly connected with the support frames (20); The outer wall of the rotary motor (21) is fixedly connected with a sleeve plate (22), the upper surface of the sleeve plate (22) is fixedly connected with a connecting shaft (23), the top end of the connecting shaft (23) is provided with a lifting cylinder (24), and the outer wall of the lifting cylinder (24) is fixedly connected with a sleeve joint plate (25), the controller (26) is fixed on the outer wall of the sleeve joint plate (25), and a plurality of mounting holes (27) are formed in the top end of the sleeve joint plate (25).

8. The self-balancing large size SiC crucible rotating lifting mechanism according to claim 7, characterized in that: The output end of the lifting cylinder (24) is fixedly connected with the connecting shaft (23), and the rotary motor (21) and the lifting cylinder (24) are electrically connected with the controller (26).

9. The self-balancing large size SiC crucible rotating lifting mechanism according to claim 7, characterized in that: The vertical section shape of the sleeve joint plate (25) is L-shaped, a plurality of the mounting holes (27) are arranged in a rectangular distribution, and the vertical section shape of each of the mounting holes (27) is circular.

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