Graphite crucible hoisting device

Abstract

The invention discloses a graphite crucible hoisting device, and relates to the technical field of hoisting devices.The graphite crucible hoisting device comprises a top frame, a plurality of fixing arms are fixedly connected to the bottom of the top frame, bent arms are arranged in the fixing arms, supporting pads are fixedly connected to the inner sides of the bent arms, and fixing rods are fixedly connected to the bottom ends of the bent arms; hinge plates are hinged to the bottom ends of the multiple fixing rods correspondingly, fixing sleeves are fixedly connected to the bottoms of the hinge plates correspondingly, bottom supporting plates are arranged on the inner sides of the fixing sleeves correspondingly, guide plates are fixedly connected to the outer sides of the bent arms correspondingly, and vertical rods are arranged on the tops of the fixing sleeves correspondingly. According to the graphite crucible hoisting device, the crucible is supported, a plurality of inner supporting plates are matched with a plurality of supporting pads to fix the side wall of the crucible, the stability of the crucible during hoisting is improved, and the crucible is prevented from deviating and inclining in the hoisting process.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting devices, in particular to a graphite crucible hoisting device. Background Art

[0002] Graphite crucible is a high-temperature container made of high-purity graphite material. It has excellent high temperature resistance, thermal conductivity and chemical stability. It can withstand temperatures up to 3000°C and is suitable for smelting, casting and high-temperature treatment processes in metallurgy, chemical industry, electronics and other fields. Its manufacturing process includes raw material selection, molding, sintering and surface treatment to ensure high strength and durability. Graphite crucibles are widely used in metal smelting, high-temperature chemical reactions, single crystal silicon production and other scenarios. They have the advantages of high efficiency, durability and versatility, but they are expensive and fragile and require careful maintenance. With the growing demand for high-temperature processes, the application prospects of graphite crucibles in industry are very broad.

[0003] In the process of lifting graphite crucible, common problems include damage of crucible due to brittle material, slipping or tilting caused by mismatch of lifting equipment or improper operation, slippery surface of crucible increasing the risk of slipping, high temperature environment affecting lifting equipment performance and operational safety, imbalance caused by unstable center of gravity of crucible or uneven material distribution, and operational difficulties caused by small working space or many obstacles. Summary of the invention

[0004] The object of the present invention is to provide a graphite crucible hoisting device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A graphite crucible lifting device comprises a top frame, wherein a plurality of fixed arms are fixedly connected to the bottom of the top frame, a plurality of bent arms are arranged inside the fixed arms, a plurality of support pads are fixedly connected to the inner sides of the bent arms, a plurality of fixed rods are fixedly connected to the bottom ends of the bent arms, a plurality of fixed rods are hinged to the bottom ends of the fixed rods, a plurality of fixed sleeves are fixedly connected to the bottom ends of the hinged plates, a plurality of bottom support plates are arranged inside the fixed sleeves, a plurality of guide plates are fixedly connected to the outer sides of the bent arms, a plurality of bent arms and a plurality of guide plates penetrate the top frame and are movably connected to the top frame, an oblique groove is opened inside the plurality of guide plates, a plurality of vertical rods are arranged on the tops of the fixed sleeves, a plurality of vertical rods are fixedly connected to the guide frames at the tops, a plurality of first round rods are fixedly connected to the tops of the guide frames, a plurality of the first round rods respectively penetrate a plurality of oblique grooves and are slidably connected to the plurality of oblique grooves, and a support assembly for supporting the inner wall of the crucible is arranged at the bottom center of the top frame.

[0006] Preferably, a connecting plate is fixedly connected to the rear side of the fixing sleeve, a rear baffle is fixedly connected to the rear end of the connecting plate, fixing cylinders are fixedly connected to both sides of the fixing sleeve, rotating sleeves are rotatably connected to the two fixing cylinders, first threaded rods are slidably connected to the two rotating sleeves, limiting plates are integrally formed on both sides of the two rotating sleeves, limiting grooves are provided on both sides of the two first threaded rods, the two limiting plates are respectively slidably connected to the two limiting grooves and matched with the two limiting grooves, the limiting grooves are limited by the limiting plates, thereby driving the first threaded rod to rotate.

[0007] Preferably, the front end of the fixed sleeve is fixedly connected to a front baffle, and both sides of the front baffle are fixedly connected to threaded sleeves, the two first threaded rods respectively penetrate the two threaded sleeves and are threadedly connected to the two threaded sleeves, and the front ends of the two first threaded rods are rotatably connected to the corresponding bottom support plates, and the bottom support plates are driven to move by the first threaded rods when moving.

[0008] Preferably, both sides of the plurality of bent arms are fixedly connected with support shafts, the plurality of support shafts are rotatably connected to the plurality of fixed arms respectively, the bottom of the top frame is fixedly connected with a plurality of mounting sleeves, the interiors of the plurality of mounting sleeves are fixedly connected with hydraulic cylinders, the output ends of the plurality of hydraulic cylinders are fixedly connected with push racks, the interiors of the plurality of push racks are fixedly connected with second round rods, the plurality of second round rods respectively penetrate through a plurality of arc grooves and are slidably connected with the plurality of arc grooves, the push rack is driven to move by starting the hydraulic cylinder, the push rack drives the second round rod to move, and the second round rod pushes the bent arm to swing.

[0009] Preferably, a second threaded rod is rotatably connected inside each of the front baffles, and the rear ends of the second threaded rods respectively penetrate through the rear baffles and are rotatably connected to the rear baffles, and a movable sleeve is threadedly connected to the outer sides of each of the second threaded rods, and the movable sleeves are respectively fixedly connected to the bottom ends of the vertical rods, and the movable sleeves are moved by the rotation of the second threaded rods, thereby driving the vertical rods to move.

[0010] Preferably, the rear ends of the plurality of rotating sleeves are fixedly connected with rotating rods, the plurality of rotating rods respectively penetrate the rear ends of the plurality of fixed cylinders and are rotatably connected to the plurality of fixed cylinders, and the plurality of rotating rods respectively penetrate the plurality of rear baffles and are rotatably connected to the plurality of rear baffles.

[0011] Preferably, the rear ends of the multiple rotating rods are fixedly connected to driven gears, the rear sides of the multiple rear baffles are fixedly connected to L-shaped plates, the rear sides of the multiple L-shaped plates are fixedly connected to the first motor, the output ends of the multiple first motors are fixedly connected to intermediate gears, both sides of the multiple intermediate gears are meshed with driven gears, and the rear ends of the multiple rotating rods are respectively fixedly connected to the multiple driven gears.

[0012] Preferably, the support assembly includes a third threaded rod, a movable ring and a plurality of support arms, a second motor is fixedly connected to the top of the top frame, an output end of the second motor is fixedly connected to the top of the third threaded rod, the third threaded rod passes through the top frame and is rotatably connected to the top frame, the third threaded rod passes through the movable ring and is threadedly connected to the movable ring, a plurality of connecting blocks are fixedly connected to the outside of the movable ring, one end of the plurality of support arms is respectively hinged to the plurality of connecting blocks, and the movable ring is driven to move by the rotation of the third threaded rod.

[0013] Preferably, the outer sides of the plurality of mounting sleeves are fixedly connected to limiting protrusions, the outer sides of the plurality of limiting protrusions are slidably connected to sliding sleeves, the bottoms of the plurality of sliding sleeves are fixedly connected to push plates, and the ends of the plurality of support arms away from the movable ring are respectively hinged to the inner sides of the plurality of push plates, so that the movable ring drives the plurality of support arms to move and pushes the plurality of push plates to move outward.

[0014] Preferably, multiple push plates are fixedly connected to piston sleeves on the outside, multiple piston sleeves are slidably connected to piston plates on the inside, multiple piston plates are fixedly connected to sliding rods on one side, multiple sliding rods are fixedly connected to inner support plates on one end, multiple piston plates are provided with multiple through holes, multiple piston sleeves are filled with buffer solution, multiple slide rods are sleeved with springs on the outside, multiple springs are fixedly connected to multiple piston sleeves and inner support plates at both ends, so that the inner support plate contacts the inner wall of the crucible, thereby supporting the crucible and improving stability.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present application enables multiple second round rods to push multiple curved arms to swing, and the multiple second round rods deflect with the support shaft as the rotation center when swinging, so that the bottoms of the multiple curved arms shrink inward, the multiple curved arms drive the multiple fixed sleeves to move, the multiple fixed sleeves drive the multiple fixed cylinders and rotating sleeves to move, and the multiple rotating sleeves drive the multiple first threaded rods to move, so that the multiple first threaded rods push the multiple bottom support plates to move inward, so that the multiple bottom support plates move toward the bottom of the crucible, and support the crucible close to the bottom of the crucible.

[0016] 2. In the present application, when the two driven gears rotate, they drive the two rotating rods to rotate, and when the multiple rotating rods rotate, they drive the multiple rotating sleeves to rotate. During the rotation of the multiple rotating sleeves, the limit plates on both sides thereof limit the multiple limit grooves, thereby driving the multiple first threaded rods to rotate. Because the first threaded rods are threadedly connected to the threaded sleeves, the first threaded rods move horizontally during rotation, so that the multiple first threaded rods drive the multiple bottom support plates to move toward the center of the bottom of the crucible, so that the multiple bottom support plates lift the bottom of the crucible upward, and the multiple bottom support plates support the crucible, thereby improving the stability of the crucible during hoisting. At the same time, the multiple bent arms drive the multiple support pads to move inward when swinging, so that the multiple support pads contact the outer wall of the crucible, thereby cooperating with the bottom support plates to fix the crucible.

[0017] 3. The present application enables multiple piston sleeves to drive multiple sliding rods and inner support plates to move, and the multiple inner support plates are in close contact with the inner wall of the crucible. The piston sleeve continues to move, so that the piston sleeve and the piston plate move relative to each other. In the process of the piston plate moving inside the piston sleeve, the buffer solution inside the piston sleeve flows through the multiple through holes opened inside the piston plate to form a damping effect, and cooperates with the spring to buffer the piston plate, so that the piston sleeve finally pushes the inner support plate to fit tightly against the inner wall of the crucible to support the crucible. The multiple inner support plates cooperate with the multiple support pads to fix the side wall of the crucible, thereby improving the stability of the crucible during hoisting and preventing it from shifting and skewing during the hoisting process. The multiple bottom support plates support the bottom of the crucible to prevent the crucible from falling off, and can also be adaptively adjusted according to the curvature of the bottom of the crucible for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the guide plate of the present invention; Figure 3 It is a structural schematic diagram of the installation sleeve of the present invention; Figure 4 It is a schematic diagram of the structure of the support pad of the present invention; Figure 5 It is a structural schematic diagram of the fixing sleeve of the present invention; Figure 6 It is a structural schematic diagram of the rotating sleeve of the present invention; Figure 7 It is a structural schematic diagram of the mobile sleeve of the present invention; Figure 8 It is a schematic structural diagram of the first threaded rod of the present invention; Fig. 9 It is a structural schematic diagram of the front baffle of the present invention; Fig.10 It is a structural schematic diagram of the guide plate of the present invention; Fig.11 It is a structural schematic diagram of the mobile ring of the present invention; Fig.12 It is a structural schematic diagram of the push plate of the present invention; Fig.13 It is a structural schematic diagram of the piston plate of the present invention.

[0019] Numbers in the figure: 1, top frame; 2, fixed arm; 3, bent arm; 301, arc groove; 302, support shaft; 4, support pad; 5, fixed rod; 6, fixed sleeve; 7, hinge plate; 8, bottom support plate; 9, guide plate; 901, oblique groove; 10, vertical rod; 11, guide frame; 12, first round rod; 13, mounting sleeve; 14, hydraulic cylinder; 15, push frame; 16, second round rod; 17, connecting plate; 18, rear baffle; 19, fixed cylinder; 20, rotating sleeve; 21, first threaded rod; 22, Limit plate; 23, limit groove; 24, threaded sleeve; 25, front baffle; 26, second threaded rod; 27, movable sleeve; 29, first motor; 30, intermediate gear; 31, driven gear; 32, rotating rod; 33, third threaded rod; 34, movable ring; 35, connecting block; 36, support arm; 37, limit convex plate; 38, sliding sleeve; 39, push plate; 40, piston sleeve; 41, sliding rod; 42, inner support plate; 43, piston plate; 44, spring; 45, second motor; 46, L-shaped plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example: Figure 1-Figure 13As shown, the present invention provides a technical solution for a graphite crucible lifting device, including a top frame 1, a plurality of fixed arms 2 are fixedly connected to the bottom of the top frame 1, a plurality of fixed arms 2 are internally provided with bent arms 3, a plurality of bent arms 3 are internally provided with support pads 4, a plurality of bent arms 3 are fixedly connected to fixed rods 5 at the bottom ends, a plurality of fixed rods 5 are hinged at the bottom ends with hinged plates 7, a plurality of hinged plates 7 are fixedly connected to fixed sleeves 6 at the bottoms, a plurality of fixed sleeves 6 are internally provided with bottom support plates 8, a plurality of bent arms 3 are fixedly connected to guide plates 9 at the outer sides, a plurality of bent arms 3 and a plurality of guide plates 9 penetrate the top frame 1 and are movably connected to the top frame 1, a plurality of guide plates 9 are internally provided with oblique grooves 901, a plurality of fixed sleeves 6 are internally provided with vertical rods 10, a plurality of vertical rods 10 are fixedly connected to the top ends A guide frame 11 is provided, and a plurality of first round rods 12 are fixedly connected to the top of the guide frames 11. The plurality of first round rods 12 respectively penetrate the plurality of oblique grooves 901 and are slidably connected to the plurality of oblique grooves 901. A connecting plate 17 is fixedly connected to the rear side of the fixing sleeve 6. A rear baffle 18 is fixedly connected to the rear end of the connecting plate 17. Fixed cylinders 19 are fixedly connected to the inside of the fixing sleeve 6 on both sides. A rotating sleeve 20 is rotatably connected to the inside of the two fixing cylinders 19. The insides of the two rotating sleeves 20 are slidably connected to the first threaded rods 21. The insides of the two rotating sleeves 20 are integrally formed with limiting plates 22 on both sides. Limiting grooves 23 are provided on both sides of the two first threaded rods 21. The two limiting plates 22 are respectively slidably connected to the inside of the two limiting grooves 23 and are adapted to the two limiting grooves 23. The limiting plates 22 pairs of limit grooves 23 are limited, thereby driving the first threaded rod 21 to rotate, the front end of the fixed sleeve 6 is fixedly connected to the front baffle 25, and the front baffle 25 is fixedly connected to the threaded sleeves 24 on both sides, the two first threaded rods 21 respectively penetrate the two threaded sleeves 24 and are threadedly connected to the two threaded sleeves 24, the front ends of the two first threaded rods 21 are rotatably connected to the corresponding bottom support plates 8, and the bottom support plates 8 are driven to move by the first threaded rods 21 when moving, multiple curved arms 3 are fixedly connected to support shafts 302 on both sides, and multiple support shafts 302 are rotatably connected to multiple fixed arms 2 respectively, and multiple mounting sleeves 13 are fixedly connected to the bottom of the top frame 1, and the multiple mounting sleeves 13 are fixedly connected to the inside of the hydraulic cylinders 14, and the output ends of the multiple hydraulic cylinders 14 are fixedly connected to push racks 15. Each push frame 15 is fixedly connected with a second round rod 16 inside, and the plurality of second round rods 16 respectively penetrate the plurality of arc grooves 301 and are slidably connected with the plurality of arc grooves 301. The push frame 15 is driven to move by the hydraulic cylinder 14, so that the push frame 15 drives the second round rod 16 to move, and the second round rod 16 drives the curved arm 3 to swing. The plurality of front baffles 25 are rotatably connected with the second threaded rod 26 inside, and the rear ends of the plurality of second threaded rods 26 respectively penetrate the plurality of rear baffles 18 and are rotatably connected with the plurality of rear baffles 18. The outer sides of the plurality of second threaded rods 26 are threadedly connected with moving sleeves 27, and the plurality of moving sleeves 27 are respectively fixedly connected with the bottom ends of the plurality of vertical rods 10, and the moving sleeves 27 are driven to move by the rotation of the second threaded rods 26, so that the moving sleeves 27 drive the vertical rods 10 to move.The rear ends of the plurality of rotating sleeves 20 are all fixedly connected with rotating rods 32, and the plurality of rotating rods 32 respectively penetrate the rear ends of the plurality of fixed cylinders 19 and are rotatably connected with the plurality of fixed cylinders 19, and the plurality of rotating rods 32 respectively penetrate the plurality of rear baffles 18 and are rotatably connected with the plurality of rear baffles 18, and the rear ends of the plurality of rotating rods 32 are all fixedly connected with driven gears 31, and the rear sides of the plurality of rear baffles 18 are all fixedly connected with L-shaped plates 46, and the rear sides of the plurality of L-shaped plates 46 are all fixedly connected with the first motors 29, and the output ends of the plurality of first motors 29 are all fixedly connected with intermediate gears 30, and both sides of the plurality of intermediate gears 30 are meshedly connected with the driven gears 31, and the rear ends of the plurality of rotating rods 32 are respectively fixedly connected with the plurality of driven gears 31.

[0022] A support assembly for supporting the inner wall of the crucible is arranged at the bottom center of the top frame 1, and the support assembly includes a third threaded rod 33, a moving ring 34 and a plurality of support arms 36. A second motor 45 is fixedly connected to the top of the top frame 1, and an output end of the second motor 45 is fixedly connected to the top of the third threaded rod 33. The third threaded rod 33 penetrates the top frame 1 and is rotatably connected to the top frame 1. The third threaded rod 33 penetrates the moving ring 34 and is threadedly connected to the moving ring 34. A plurality of connecting blocks 35 are fixedly connected to the outer side of the moving ring 34. One end of a plurality of support arms 36 is respectively hinged to the plurality of connecting blocks 35, and the moving ring 34 is driven to move by the rotation of the third threaded rod 33. The outer sides of the plurality of mounting sleeves 13 are fixedly connected to limiting convex plates 37, the outer sides of the plurality of limiting convex plates 37 are slidably connected to sliding sleeves 38, and the bottoms of the plurality of sliding sleeves 38 are fixedly connected There is a push plate 39, and the ends of multiple support arms 36 away from the moving ring 34 are respectively hinged to the inner sides of the multiple push plates 39, so that the moving ring 34 drives the multiple support arms 36 to move and push the multiple push plates 39 to move outward. The outer sides of the multiple push plates 39 are fixedly connected with piston sleeves 40, and the interiors of the multiple piston sleeves 40 are slidably connected with piston plates 43. One side of the multiple piston plates 43 is fixedly connected with sliding rods 41, and one end of the multiple sliding rods 41 is fixedly connected with an inner support plate 42. Multiple through holes are opened in the interiors of the multiple piston plates 43, and buffer solutions are poured into the interiors of the multiple piston sleeves 40. Springs 44 are sleeved on the outer sides of the multiple sliding rods 41, and the two ends of the multiple springs 44 are respectively fixedly connected to the multiple piston sleeves 40 and the inner support plate 42, so that the inner support plate 42 contacts the inner wall of the crucible, and thereby supports the crucible to improve stability.

[0023] When the present scheme is in use, since the shape of the crucible is cylindrical and truncated cone with a thick top and a thin bottom, the top frame 1 is hoisted above the crucible and then lowered, so that the top frame 1 drives multiple fixed sleeves 6 to be located outside the crucible, and multiple hydraulic cylinders 14 are started synchronously, and then the hydraulic cylinders 14 push the multiple push frames 15 to move outward, and then the multiple push frames 15 drive the multiple second round rods 16 to move, so that the multiple second round rods 16 push the multiple curved arms 3 to swing, and the multiple second round rods 16 deflect with the support shaft 302 as the rotation center when swinging, so that the bottoms of the multiple curved arms 3 shrink inward, the multiple curved arms 3 drive the multiple fixed sleeves 6 to move, the multiple fixed sleeves 6 drive the multiple fixed cylinders 19 and the rotating sleeves 20 to move, and the multiple rotating sleeves 20 drive the multiple first threaded rods 21 to move, so that the multiple first threaded rods 21 push the multiple bottom support plates 8 to move inward, so that the multiple bottom support plates 8 move toward the bottom of the crucible and support the crucible close to the bottom of the crucible.

[0024] By starting multiple first motors 29 synchronously, multiple first motors 29 drive multiple intermediate gears 30 to rotate, so that multiple intermediate gears 30 drive two driven gears 31 to rotate when rotating, and when the two driven gears 31 rotate, they drive two rotating rods 32 to rotate, and when the multiple rotating rods 32 rotate, they drive multiple rotating sleeves 20 to rotate. During the rotation of the multiple rotating sleeves 20, the limiting plates 22 on both sides of the interior limit the multiple limiting grooves 23, so as to drive the multiple first threaded rods 21 to rotate. Because the first threaded rods 21 are threadedly connected with the threaded sleeves 24, the first threaded rods 21 move horizontally when rotating, so that the multiple first threaded rods 21 drive the multiple bottom support plates 8 to move toward the center of the bottom of the crucible, so that the multiple bottom support plates 8 push the bottom of the crucible upward, and the multiple bottom support plates 8 support the crucible, so as to improve the stability of the crucible during hoisting. At the same time, the multiple bent arms 3 drive the multiple support pads 4 to move inward when swinging, so that the multiple support pads 4 contact the outer wall of the crucible, thereby cooperating with the bottom support plates 8 to fix the crucible.

[0025] The plurality of second threaded rods 26 rotate, and when the plurality of second threaded rods 26 rotate, the movable sleeve 27 is driven to move, so that the plurality of movable sleeves 27 drive the plurality of vertical rods 10 to move, and the plurality of vertical rods 10 drive the plurality of guide frames 11 and the first round rod 12 to move, and then the first round rod 12 is moved along the oblique groove 901. Because the oblique groove 901 makes an inclined upward trajectory, the first round rod 12 is raised or lowered during movement, thereby driving the guide frame 11 and the vertical rod 10 to rise and fall. The vertical rod 10 drives the movable sleeve 27 to rise and fall during the lifting process, so that the movable sleeve 27 drives the second threaded rod 26 and the rear end of the fixed sleeve 6 to deflect up and down, and adjusts the angle of the fixed sleeve 6 and the bottom support plate 8, so that the bottom support plate 8 fits with the bottom of the crucible, thereby improving the stability of the crucible during lifting. Since the first round rod 12 is cylindrical, when the vertical rod 10 drives the guide frame 11 and the first round rod 12 to deflect at an angle, the first round rod 12 always remains inside the oblique groove 901.

[0026] The third threaded rod 33 is driven to rotate by the second motor 45, and then the third threaded rod 33 is driven to descend when it rotates, so that the moving ring 34 pushes the multiple connecting blocks 35 and the support arms 36 to move, and the multiple support arms 36 are opened outward when descending, and push the multiple push plates 39 to slide outward, so that the multiple push plates 39 drive the multiple sliding sleeves 38 to move outside the multiple limiting convex plates 37, limit and guide the push plates 39, improve the stability of the push plates 39, and when the multiple push plates 39 move outward, they drive the multiple piston sleeves 40 to move outward, so that the multiple piston sleeves 40 drive the multiple sliding rods 41 and the inner support plates 42 to move, and the multiple inner support plates 42 are in contact with the inner wall of the crucible. Continue to move, so that the piston sleeve 40 and the piston plate 43 move relative to each other. During the movement of the piston plate 43 inside the piston sleeve 40, the buffer solution inside the piston sleeve 40 flows through the multiple through holes opened inside the piston plate 43 to form a damping effect, and cooperates with the spring 44 to buffer the piston plate 43, so that the piston sleeve 40 finally pushes the inner support plate 42 to fit tightly against the inner wall of the crucible to support the crucible. Multiple inner support plates 42 cooperate with multiple support pads 4 to fix the side wall of the crucible, improve the stability of the crucible during hoisting, and prevent it from shifting and tilting during the hoisting process. Multiple bottom support plates 8 support the bottom of the crucible to prevent the crucible from falling off, and can also be adaptively adjusted according to the curvature of the bottom of the crucible for easy use.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. The embodiments should therefore be considered exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A graphite crucible hoisting device, characterized in that: The invention comprises a top frame (1), wherein a plurality of fixed arms (2) are fixedly connected to the bottom of the top frame (1), a plurality of bent arms (3) are arranged inside the fixed arms (2), a plurality of support pads (4) are fixedly connected to the inner sides of the bent arms (3), a plurality of fixed rods (5) are fixedly connected to the bottom ends of the bent arms (3), a plurality of hinged plates (7) are hinged to the bottom ends of the fixed rods (5), a plurality of fixed sleeves (6) are fixedly connected to the bottom ends of the hinged plates (7), a plurality of bottom support plates (8) are arranged inside the plurality of fixed sleeves (6), a plurality of guide plates (9) are fixedly connected to the outer sides of the bent arms (3), and a plurality of bent arms ( 3) and a plurality of guide plates (9) all penetrate the top frame (1) and are movably connected to the top frame (1), a plurality of the guide plates (9) are provided with oblique grooves (901) inside, a plurality of the fixing sleeves (6) are provided with vertical rods (10) at the top, a plurality of the vertical rods (10) are fixedly connected to the top of the guide frame (11), a plurality of the guide frames (11) are fixedly connected to the top of the first round rods (12), a plurality of the first round rods (12) respectively penetrate the plurality of oblique grooves (901) and are slidably connected to the plurality of oblique grooves (901), and a support assembly for supporting the inner wall of the crucible is provided at the bottom center of the top frame (1).

2. A graphite crucible hoisting device according to claim 1, characterized in that: The rear side of the fixed sleeve (6) is fixedly connected to a connecting plate (17), the rear end of the connecting plate (17) is fixedly connected to a rear baffle (18), both sides of the fixed sleeve (6) are fixedly connected to fixing cylinders (19), both fixing cylinders (19) are rotatably connected to rotating sleeves (20), both rotating sleeves (20) are slidably connected to first threaded rods (21), both sides of the rotating sleeves (20) are integrally formed with limiting plates (22), both sides of the first threaded rods (21) are provided with limiting grooves (23), and the two limiting plates (22) are respectively slidably connected to the inside of the two limiting grooves (23) and are adapted to the two limiting grooves (23).

3. A graphite crucible hoisting device according to claim 2, characterized in that: The front end of the fixed sleeve (6) is fixedly connected to a front baffle (25), and both sides of the interior of the front baffle (25) are fixedly connected to threaded sleeves (24), and the two first threaded rods (21) respectively penetrate the two threaded sleeves (24) and are threadedly connected to the two threaded sleeves (24), and the front ends of the two first threaded rods (21) are rotatably connected to the corresponding bottom support plates (8).

4. The graphite crucible hoisting device according to claim 1, characterized in that: Both sides of the plurality of bent arms (3) are fixedly connected with support shafts (302), the plurality of support shafts (302) are rotatably connected to the plurality of fixed arms (2), the bottom of the top frame (1) is fixedly connected with a plurality of mounting sleeves (13), the interiors of the plurality of mounting sleeves (13) are fixedly connected with hydraulic cylinders (14), the output ends of the plurality of hydraulic cylinders (14) are fixedly connected with push frames (15), the interiors of the plurality of push frames (15) are fixedly connected with second round rods (16), and the plurality of second round rods (16) respectively penetrate the plurality of arc grooves (301) and are slidably connected with the plurality of arc grooves (301).

5. The graphite crucible hoisting device according to claim 3, characterized in that: The plurality of front baffles (25) are rotatably connected to a second threaded rod (26) inside, the rear ends of the plurality of second threaded rods (26) respectively penetrate through the plurality of rear baffles (18) and are rotatably connected to the plurality of rear baffles (18), the outer sides of the plurality of second threaded rods (26) are threadably connected to a movable sleeve (27), and the plurality of movable sleeves (27) are respectively fixedly connected to the bottom ends of the plurality of vertical rods (10).

6. A graphite crucible hoisting device according to claim 2, characterized in that: The rear ends of the plurality of rotating sleeves (20) are all fixedly connected to rotating rods (32); the plurality of rotating rods (32) respectively penetrate the rear ends of the plurality of fixed cylinders (19) and are rotatably connected to the plurality of fixed cylinders (19); and the plurality of rotating rods (32) respectively penetrate the plurality of rear baffles (18) and are rotatably connected to the plurality of rear baffles (18).

7. A graphite crucible hoisting device according to claim 6, characterized in that: The rear ends of the plurality of rotating rods (32) are fixedly connected to a driven gear (31), the rear sides of the plurality of rear baffles (18) are fixedly connected to an L-shaped plate (46), the rear sides of the plurality of L-shaped plates (46) are fixedly connected to a first motor (29), the output ends of the plurality of first motors (29) are fixedly connected to an intermediate gear (30), both sides of the plurality of intermediate gears (30) are meshedly connected to the driven gears (31), and the rear ends of the plurality of rotating rods (32) are respectively fixedly connected to the plurality of driven gears (31).

8. The graphite crucible hoisting device according to claim 4, characterized in that: The support assembly comprises a third threaded rod (33), a movable ring (34) and a plurality of support arms (36); a second motor (45) is fixedly connected to the top of the top frame (1); an output end of the second motor (45) is fixedly connected to the top of the third threaded rod (33); the third threaded rod (33) passes through the top frame (1) and is rotatably connected to the top frame (1); the third threaded rod (33) passes through the movable ring (34) and is threadedly connected to the movable ring (34); a plurality of connection blocks (35) are fixedly connected to the outer side of the movable ring (34); and one end of the plurality of support arms (36) is respectively hinged to the plurality of connection blocks (35).

9. The graphite crucible hoisting device according to claim 8, characterized in that: The outer sides of the plurality of mounting sleeves (13) are fixedly connected to a limiting convex plate (37), the outer sides of the plurality of limiting convex plates (37) are slidably connected to a sliding sleeve (38), the bottoms of the plurality of sliding sleeves (38) are fixedly connected to a push plate (39), and the ends of the plurality of support arms (36) away from the moving ring (34) are respectively hinged to the inner sides of the plurality of push plates (39).

10. The graphite crucible hoisting device according to claim 9, characterized in that: The outer sides of the plurality of push plates (39) are fixedly connected to piston sleeves (40), the inner sides of the plurality of piston sleeves (40) are slidably connected to piston plates (43), one side of the plurality of piston plates (43) is fixedly connected to sliding rods (41), one end of the plurality of sliding rods (41) is fixedly connected to an inner support plate (42), the inner sides of the plurality of piston plates (43) are provided with a plurality of through holes, the inner sides of the plurality of piston sleeves (40) are filled with buffer solution, the outer sides of the plurality of sliding rods (41) are provided with springs (44), and the two ends of the plurality of springs (44) are respectively fixedly connected to the plurality of piston sleeves (40) and the inner support plate (42).

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