A graphite crucible lifting device

Abstract

The present application relates to the technical field of crucible lifting device, in particular to a graphite crucible lifting device, which comprises a central sleeve, a plurality of support arms are rotatably installed on the outer circumferential surface of the central sleeve, a movable arm is slidably installed on the outer surface of each support arm along the length direction of the support arm, a clamping arm is rotatably installed on the end of the movable arm away from the corresponding support arm, a water storage cylinder and a force storage cylinder are fixedly installed on the surface of the support arm, a vibration cylinder is fixedly installed at the bottom end of the force storage cylinder, and a vibration device is arranged in the vibration cylinder, the graphite crucible is used to heat the circulating liquid in the heated cylinder and generate steam by using the high temperature of the graphite crucible, passive conversion of heat energy into pressure energy is realized, and the threshold value triggering of pressure and the partition import are realized through the cooperation of the water storage cylinder, the collector pipe, the pressure boosting cylinder and the on-off plug, so that the vibration device is started only when the predetermined working condition is reached, the false triggering or continuous vibration is avoided, and the stability and safety of the system operation are improved.

Description

Technical Field

[0001] This invention relates to the field of crucible lifting device technology, specifically a graphite crucible lifting device. Background Technology

[0002] Graphite crucibles are widely used in metallurgy, semiconductor material preparation, and non-ferrous metal smelting due to their advantages such as high temperature resistance, corrosion resistance, and good thermal stability. During production and use, graphite crucibles usually need to be lifted, transported, and positioned frequently in high-temperature environments. The safety and stability of the lifting process have a significant impact on production efficiency and operational safety.

[0003] In the prior art, the lifting and unloading of graphite crucibles mostly rely on general-purpose lifting tools or simple clamping devices. These lifting tools usually use fixed-size jaws, lifting rings, or wire ropes to lift the crucible. During the unloading process, due to the strong adhesion between the inner wall of the graphite crucible and the molten material, it is usually difficult to apply effective vibration assistance to the crucible during the unloading process. This can easily lead to material residue or slag buildup, which not only affects the thoroughness of unloading but also reduces the reusability of the crucible. Therefore, this application proposes a graphite crucible lifting tool. Summary of the Invention

[0004] The purpose of this invention is to provide a graphite crucible lifting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a graphite crucible lifting device, comprising a central sleeve, wherein multiple support arms are rotatably mounted on the outer circumferential surface of the central sleeve, and a movable arm is slidably mounted on the outer surface of each support arm along its length direction to adjust the overall unfolded size of the lifting device. A clamping arm is rotatably mounted on the end of the movable arm away from the corresponding support arm, and a heating cylinder is fixedly mounted on the bottom end of the clamping arm. A support claw is rotatably mounted on the outer surface of the heating cylinder. A water storage cylinder and a power storage cylinder are fixedly mounted on the surface of the support arms, respectively. A vibrating cylinder is fixedly mounted on the bottom end of the power storage cylinder, and a vibration device is provided inside the vibrating cylinder. A central tube is coaxially fixedly mounted inside the power storage cylinder.

[0006] As a further embodiment of the present invention, a movable cylinder is coaxially arranged below the central sleeve. Multiple traction rods are rotatably mounted on the outer circumferential surface of the movable cylinder. The ends of the traction rods away from the movable cylinder are rotatably connected to the middle of the corresponding support arm. A diameter fine adjustment sleeve is inserted through the bottom end of the central sleeve, and the movable cylinder is threaded onto the surface of the diameter fine adjustment sleeve. By coaxially arranging the movable cylinder below the central sleeve and utilizing the threaded fit between the diameter fine adjustment sleeve and the movable cylinder, the movable cylinder generates a stable axial displacement during rotation adjustment. This allows the multiple traction rods to synchronously drive the support arm to rotate in linkage, thereby achieving precise adjustment of the opening and closing dimensions of the support arm.

[0007] As a further embodiment of the present invention, a guide pipe is fixedly connected to the surface of the heating cylinder, and a telescopic pipe is installed inside the water storage cylinder. The end of the guide pipe away from the heating cylinder is fixedly connected to the bottom end of the telescopic pipe. By fixing the guide pipe on the surface of the heating cylinder to the telescopic pipe inside the water storage cylinder, the high temperature released by the crucible can quickly heat the circulating liquid in the heating cylinder, and a stable steam channel is formed through the guide pipe and the telescopic pipe, thereby realizing the effective transfer of heat energy to pressure energy.

[0008] As a further embodiment of the present invention, a booster cylinder is fixedly installed at the inner end of the accumulator cylinder, and a manifold is fixedly installed at the upper end of the booster cylinder. The end of the manifold away from the booster cylinder is fixedly connected to the surface of the water storage cylinder. By fixing the booster cylinder at the inner end of the accumulator cylinder and connecting the upper end of the booster cylinder to the water storage cylinder through the manifold, the pressure generated inside the water storage cylinder can be efficiently transmitted to the booster cylinder, thereby achieving pressure concentration and amplification.

[0009] As a further embodiment of the present invention, the upper end of the central tube passes through and extends into the interior of the booster cylinder, a switch plug is slidably fitted on the outer surface of the central tube, and an isolation ring is fixedly installed at the inner end of the accumulator cylinder. By passing the upper end of the central tube into the interior of the booster cylinder, and slidably fitting a switch plug on the outer surface of the central tube, while setting an isolation ring at the inner end of the accumulator cylinder, the pressure in the booster cylinder can be divided into zones and triggered at a threshold.

[0010] As a further embodiment of the present invention, the on / off plug and the isolation ring are connected by a compression spring. The outer surface of the central tube is provided with a guide hole and a transmission hole, wherein the guide hole is located above the isolation ring and the transmission hole is located below the isolation ring. By connecting the on / off plug and the isolation ring with a compression spring and providing a guide hole and a transmission hole on the outer surface of the central tube, controllable pressure introduction between different chambers is achieved. The guide hole is located above the isolation ring and the transmission hole is located below the isolation ring, enabling the on / off plug to move along a designed path under pressure and accurately transmit the pressure to the lower chamber or the vibration device.

[0011] As a further embodiment of the present invention, the vibration device includes an output pipe fixedly installed inside the vibration cylinder. A vibration sleeve is fixedly installed at the inner end of the vibration cylinder, and a passive ring is rotatably installed at the inner end of the vibration sleeve. An eccentric block is rotatably installed at the inner end of the passive ring, enabling the passive ring to generate high-frequency vibration during rotation. By setting the output pipe inside the vibration cylinder, and in conjunction with the vibration sleeve, passive ring, and eccentric block structure, the passive ring generates high-frequency vibration during rotation. This vibration can effectively act on the graphite crucible, promoting the shedding of molten or residual material inside the crucible. This design improves the thoroughness of material pouring, significantly reduces slag adhesion, and achieves efficient vibration without the need for an additional power device.

[0012] As a further embodiment of the present invention, the surface of the output pipe is provided with a side spray hole, which is located inside the vibrating sleeve. The bottom end of the central pipe is provided with a pressure relief hole, and a central rod is axially inserted inside the central pipe. By providing a side spray hole on the surface of the output pipe and positioning it inside the vibrating sleeve, combined with the pressure relief hole at the bottom end of the central pipe and the axially inserted central rod, high-pressure gas can act on the vibration mechanism along the designed path, while realizing controllable pressure release, ensuring reliable start-up and stop of the vibration device during the material pouring process.

[0013] As a further embodiment of the present invention, a pressure relief plug is fixedly installed at the bottom end of the central rod, and the pressure relief plug is correspondingly arranged with the pressure relief hole. A movable block is provided at the upper end of the accumulator, and the bottom end of the movable block is fixedly connected to the central rod. A pressing block is fixedly installed on the outer surface of the central sleeve. By fixing the pressure relief plug at the bottom end of the central rod and aligning it with the pressure relief hole at the bottom end of the central tube, and simultaneously providing a movable block at the upper end of the accumulator and fixing it with the bottom end of the central rod, the structural linkage is achieved through the pressing block on the outer surface of the central sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes the extremely high temperature of the graphite crucible itself to heat the circulating liquid inside the heating cylinder, causing the circulating liquid to rapidly vaporize and form a high-temperature and high-pressure environment. This achieves the passive conversion of thermal energy into pressure energy. The pressure is transmitted and introduced in zones through the coordinated structure of the water storage tank, manifold, pressure boosting cylinder, and on / off plug, realizing threshold trigger control. This ensures that the vibration device only starts when the predetermined working condition is reached, avoiding false triggering or continuous vibration, thereby improving the controllability, stability, and safety of the material pouring process. 2. This invention utilizes a combination of an eccentric block, a passive ring, and a vibrating sleeve in a vibration device to achieve high-frequency, controllable vibration applied to a graphite crucible. This vibration promotes the shedding of residual molten material or solidified residue during the crucible pouring process, effectively reducing slag buildup and ensuring smooth material flow. It enables high-frequency slag removal during the quasi-liquid / semi-solid stage before the material has fully solidified. The removal difficulty is far lower than manual solidification in a cold state, achieving complete pouring of molten material and significantly reducing the frequency of slag removal. This structure not only improves pouring efficiency but also reduces mechanical impact on the crucible surface, thereby extending the crucible's service life. 3. This invention, through the cooperation of the central sleeve, the movable cylinder, the diameter fine adjustment sleeve, and the traction rod, can also achieve precise opening and closing adjustment of the support arm and the clamping arm, enabling the lifting device to quickly adapt to graphite crucibles of different diameters. At the same time, through the asymmetrical rotation of the support arm, the tilt angle of the crucible can be adjusted to meet different pouring posture requirements. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a graphite crucible lifting device; Figure 2 This is a structural diagram of the support arm. Figure 3 This is a structural diagram of the support arm and the movable arm; Figure 4 This is a structural diagram showing the disassembled support arm; Figure 5 This is a schematic diagram of the internal structure of the water storage tank; Figure 6 A schematic diagram of the internal structure of the supporting claw; Figure 7 This is a schematic diagram of the internal structure of the accumulator cylinder; Figure 8 This is a schematic diagram of the structure of the plug and the isolation ring; Figure 9 This is a schematic diagram of the internal structure of the central tube; Figure 10 This is a schematic diagram of the internal structure of the vibration sleeve.

[0016] In the diagram: 1. Center sleeve; 2. Hanging rod; 3. Stabilizer bar; 4. Support arm; 5. Movable arm; 6. Support claw; 11. Diameter fine adjustment sleeve; 12. Movable cylinder; 13. Traction rod; 14. Lower pressure block; 101. Accumulator; 102. Vibrating cylinder; 103. Moving block; 104. Manifold; 105. Pressure booster; 106. Compression spring; 107. Isolation ring; 108. Central tube; 109. On / off plug; 110. Guide hole; 111. Transmission hole; 112. Sealing plug; 113. Central rod; 114. Pressure relief hole; 115. Pressure relief plug; 201. Water storage tank; 202. Clamping arm; 203. Flow guide pipe; 204. Heating cylinder; 205. Pressure relief cover; 206. Recovery pipe; 207. One-way valve; 208. Telescopic pipe; 301. Output pipe; 302. Vibration sleeve; 303. Side spray hole; 304. Passive ring; 305. Eccentric block. Detailed Implementation

[0017] 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.

[0018] Example 1: Please refer to Figures 1-3 A graphite crucible lifting device includes a central sleeve 1. Multiple support arms 4 are rotatably mounted on the outer circumferential surface of the central sleeve 1. Each support arm 4 is independent of the others around the central sleeve 1. Movable arms 5 are slidably mounted on the outer surface of each support arm 4 along its length to adjust the overall unfolded size of the lifting device. A clamping arm 202 is rotatably mounted on the end of the movable arm 5 away from the corresponding support arm 4, allowing the clamping arm 202 to swing relative to the movable arm 5 to adjust the clamping angle. A ratchet engagement ring is provided between the clamping arm 202 and the movable arm 5. The ratchet engagement ring is used to adjust the swing angle of the clamping arm 202 in stages and achieves one-way self-locking after adjustment. This maintains the stable clamping posture of the clamping arm 202 during the lifting of graphite crucibles of different specifications and prevents angle swing due to force changes during lifting. The method of locking the angle through the ratchet engagement ring is not unique; this function can also be achieved by any other locking angle method. A heating cylinder 204 is fixedly installed at the bottom end of the clamping arm 202. The heating cylinder 204 is used to provide heat insulation and buffering for the clamping arm 202 in a high-temperature environment. Support claws 6 are rotatably installed on the outer surface of the heating cylinder 204. Multiple support claws 6 form a clamping structure on one side that is close to each other, so that the support claws 6 can circumferentially cover and abut against the protruding part at the edge of the graphite crucible in the clamping state, thereby achieving multi-point force clamping, reducing local stress concentration, and improving hoisting stability. A water storage tank 201 and a power storage tank 101 are fixedly installed on the surface of the support arm 4. The water storage tank 201 is used to cool or buffer the corresponding components under high temperature hoisting conditions. A vibrating cylinder 102 is fixedly installed at the bottom of the power storage tank 101. The vibrating cylinder 102 is equipped with a vibration device inside. When the graphite crucible is tilted, the high-frequency vibration acts on the clamping structure to allow the residual material in the crucible to fall off completely, thereby avoiding the occurrence of material slag. A movable cylinder 12 is coaxially arranged below the central sleeve 1. Multiple traction rods 13 are rotatably installed on the outer circumferential surface of the movable cylinder 12. The ends of the traction rods 13 away from the movable cylinder 12 are rotatably connected to the middle of the corresponding support arms 4, so that the movable cylinder 12 and the multiple support arms 4 form a linkage transmission relationship. A diameter fine adjustment sleeve 11 is inserted through the bottom end of the central sleeve 1, and the movable cylinder 12 is threaded on the surface of the diameter fine adjustment sleeve 11. As the movable cylinder 12 moves axially, the traction rods 13 apply synchronous traction or push force to the support arms 4 under its rotational connection, so that the multiple support arms 4 rotate synchronously around the central sleeve 1 to expand or retract, thereby driving the clamping structure to change the clamping diameter as a whole to adapt to graphite crucibles with different outer diameter specifications. Specifically, multiple stabilizing rods 3 are mounted on the surface of the central sleeve 1 via a rotating shaft. The end of the stabilizing rod 3 away from the central sleeve 1 is slidably connected to the surface of the support arm 4. A hanging rod 2 is fixedly mounted on the upper end of the central sleeve 1.

[0019] like Figures 3-6 A guide pipe 203 is fixedly connected to the surface of the heating cylinder 204. A telescopic pipe 208 is inserted inside the water storage cylinder 201, and the end of the guide pipe 203 away from the heating cylinder 204 is fixedly connected to the bottom end of the telescopic pipe 208. The water storage cylinder 201 is filled with circulating liquid, and the liquid level of the circulating liquid is higher than that of the telescopic pipe 208. Therefore, the circulating liquid will enter the interior of the heating cylinder 204 along the telescopic pipe 208 and the guide pipe 203. When the graphite crucible is in an extremely high temperature state after being removed from the furnace, when the support claw 6 contacts the surface of the graphite crucible, the heating cylinder 204 will immediately be subjected to high temperature, heating the circulating liquid inside. Since the temperature of the crucible is much higher than the boiling point of the circulating liquid, the circulating liquid will rapidly vaporize, forming a high temperature and high pressure environment. To ensure the safety of the device, a pressure relief cover 205 is detachably installed on the upper end of the water storage tank 201. This cover is used to safely discharge excess pressure when the pressure generated by the vaporization of the circulating liquid is too high, preventing the water storage tank 201 from being subjected to pressure exceeding the design limit. This ensures the stable operation and safe operation of the lifting device under high temperature and high pressure conditions. In addition, to improve the heat transfer efficiency, the connection between the guide pipe 203 and the telescopic pipe 208 can be sealed with high temperature resistant sealing material to prevent leakage of circulating liquid or steam. At the same time, a temperature monitoring device or safety valve can be installed inside the heating cylinder 204 to further improve the reliability and safety of the material pouring operation.

[0020] Example 2: Please refer to Figure 5 , Figure 7 , Figure 8A graphite crucible lifting device, based on embodiment 1, wherein a pressure boosting cylinder 105 is fixedly installed at the inner end of the accumulator cylinder 101, and a manifold 104 is fixedly installed at the upper end of the pressure boosting cylinder 105. The end of the manifold 104 away from the pressure boosting cylinder 105 is fixedly connected to the surface of the water storage cylinder 201, so that the pressure generated inside the water storage cylinder 201 can be transmitted to the pressure boosting cylinder 105 through the manifold 104. The manifold 104 is located below the pressure discharge cover 205. A central tube 108 is coaxially fixedly installed inside the accumulator 101. The upper end of the central tube 108 passes through and extends into the interior of the booster cylinder 105. A switch plug 109 is slidably sleeved on the outer surface of the central tube 108. A partition ring 107 is fixedly installed at the inner end of the accumulator 101. The switch plug 109 and the partition ring 107 are connected by a compression spring 106. Under the elastic force of the compression spring 106, the upper end face of the switch plug 109 is in contact with the bottom end of the booster cylinder 105, thereby sealing the internal pressure of the booster cylinder 105 in the initial state. As the internal pressure of the water storage tank 201 gradually increases, the pressure enters the booster tank 105 through the manifold 104. When the pressure inside the booster tank 105 is greater than the elastic reaction force provided by the compression spring 106, the switch 109 moves downward along the central tube 108 under the action of pressure and simultaneously compresses the compression spring 106, thereby making the booster tank 105 and the inside of the power storage tank 101 connected. The outer surface of the central tube 108 is provided with a guide hole 110 and a transmission hole 111. The guide hole 110 is located above the isolation ring 107, and the transmission hole 111 is located below the isolation ring 107. When the on / off plug 109 moves downward and passes the guide hole 110, the pressure in the booster cylinder 105 enters the chamber below the on / off plug 109 through the guide hole 110. Under the limiting action of the isolation ring 107, the pressure is divided into zones, providing a stable pressure source for the subsequent vibration or discharge auxiliary mechanism.

[0021] like Figure 2 , Figure 5 , Figures 7-10 As shown, the vibration device includes an output pipe 301, which is fixedly installed inside the vibration cylinder 102. The upper end of the output pipe 301 is fixedly connected to the central pipe 108, so that the pressure medium in the central pipe 108 can enter the vibration cylinder 102 through the output pipe 301. A vibration sleeve 302 is fixedly installed at the inner end of the vibration cylinder 102. A passive ring 304 is rotatably installed at the inner end of the vibration sleeve 302. An eccentric block 305 is rotatably installed at the inner end of the passive ring 304, so that the passive ring 304 can generate high-frequency vibration during rotation. The surface of the output pipe 301 is provided with a side spray hole 303, which is located inside the vibration sleeve 302. The outer surface of the passive ring 304 is provided with a ratchet structure, and the side spray hole 303 is directly opposite the corresponding side of the ratchet inclined surface. When the high pressure gas ejected from the side spray hole 303 acts on the ratchet inclined surface, it can generate a unidirectional driving torque on the passive ring 304, thereby driving the passive ring 304 and the eccentric block 305 to rotate continuously, so as to form a stable high-frequency vibration in the vibration cylinder 102. Specifically, the upper end of the vibration sleeve 302 is provided with a discharge port, and a recovery pipe 206 is fixedly connected to the surface of the water storage tank 201. The recovery pipe 206 is fixedly connected to the outer surface of the vibration cylinder 102, and a one-way valve 207 is fixedly installed at the inner end of the recovery pipe 206. This allows the gas generated inside the vibration cylinder 102 to enter the internal chamber of the water storage tank 201 through the one-way valve 207, while the circulating liquid in the water storage tank 201 cannot enter the vibration cylinder 102 in the reverse direction. This achieves directional recovery of gas during vibration and avoids backflow of liquid from affecting the vibration mechanism. A pressure relief hole 114 is provided at the bottom end of the central tube 108. A central rod 113 is axially inserted inside the central tube 108. A pressure relief plug 115 is fixedly installed at the bottom end of the central rod 113, and the pressure relief plug 115 is correspondingly arranged with the pressure relief hole 114. More specifically, a sealing plug 112 is fixedly installed on the outer surface of the central rod 113. The sealing plug 112 seals the upper end of the central tube 108, so that the interior of the central tube 108 remains sealed under normal working conditions. It is worth noting that the size of the sealing plug 112 is smaller than the diameter of the central tube 108. The upper end of the accumulator 101 is provided with a movable block 103. The bottom end of the movable block 103 is fixedly connected to the central rod 113. The outer surface of the central sleeve 1 is fixedly installed with a lower pressure block 14. When the support arm 4 rotates to the point where the graphite crucible is completely inverted and the residual material gathers at the crucible opening, the movable block 103 contacts the lower pressure block 14 under the linkage of the structure and pushes the central rod 113 to move axially, so that the pressure relief plug 115 is disengaged from the pressure relief hole 114. The end of the lower pressure block 14 is connected to the movable block 103 by a traction line (not shown in the figure), so that when the support arm 4 rotates from the unfolded state to the reset state, the traction line can apply a pull force to the movable block 103, thereby driving the central rod 113 and the pressure relief plug 115 to return to their original positions, so that the pressure relief mechanism returns to the initial sealing state, which is convenient for the next operation cycle. Furthermore, since the stabilizer bar 3 and the support arm 4 are connected by a sliding connection, and the diameter fine adjustment sleeve 11 and the center sleeve 1 are interlocked and form an axial adjustment relationship.

[0022] The working principle of this invention is: In use, first rotate the diameter fine-tuning sleeve 11 to move the movable cylinder 12 along the axial direction of the central sleeve 1. This, along with the traction rod 13, drives multiple support arms 4 to expand or retract synchronously, thereby adjusting the opening and closing dimensions between the support arms 4 to accommodate graphite crucibles of different diameters. After adjusting the dimensions, the support claws 6 clamp the edge of the graphite crucible, lifting the entire crucible. Subsequently, external machinery (such as a crane hook) or a manual traction device is used to apply directional force to the specific support arm 4 equipped with the accumulator cylinder 101. Since each support arm 4 is independently mounted on the outer circumferential surface of the central sleeve 1 via a rotating shaft, and there is no circumferential synchronous locking constraint between the support arms 4, the specific support arm 4 will deflect around its rotating shaft first after being subjected to force. During this process, the support arm 4 transmits an asymmetrical swinging torque to the movable cylinder 12 through its corresponding traction rod 13, breaking the original radial balance state of multiple support arms 4, thereby inducing the remaining support arms 4 to produce compensatory asymmetrical displacement, thereby driving the graphite crucible to tilt relative to the central sleeve 1 to meet the posture requirements required for the pouring operation. Since the graphite crucible is at a high temperature when it comes out of the furnace, the heat of the outer wall of the crucible will be quickly transferred to the heating cylinder 204 that is in contact with or adjacent to it, so that the circulating liquid inside the heating cylinder 204 is heated and vaporized to form steam. The steam enters the water storage cylinder 201 through the telescopic pipe 208, and is further introduced into the pressure boosting cylinder 105 through the manifold 104, so that the pressure inside the pressure boosting cylinder 105 gradually increases. As the pressure inside the pressure boosting cylinder 105 continues to increase, the on / off plug 109 moves downward along the central tube 108 axis under the action of pressure, overcoming the elastic force of the compression spring 106. When the on / off plug 109 moves down and passes the guide hole 110, the pressure inside the pressure boosting cylinder 105 enters the chamber below the on / off plug 109 through the guide hole 110, so that the pressure in the chamber increases synchronously, thereby completing the pre-energy storage process of the vibration device. When the tilt angle of the support arm 4 causes the graphite crucible to be completely tilted, the end of the lower pressure block 14 contacts the upper end of the movable block 103 and applies downward pressure to it, causing the movable block 103 to move axially and drive the central rod 113, sealing plug 112 and pressure relief plug 115 to move synchronously. This causes the pressure inside the accumulator 101 to be released into the vibrating sleeve 302 through the output pipe 301. Under the action of high-pressure gas, the gas ejected from the side spray hole 303 drives the passive ring 304 and the eccentric block 305 inside it to rotate at high speed, forming high-frequency vibration in the vibrating cylinder 102, thereby generating vibration on the graphite crucible. This allows the molten material or residue inside the crucible to be fully separated from the inner wall of the crucible and to be poured out smoothly, avoiding slag buildup.

[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A graphite crucible lifting device, comprising a central sleeve (1), characterized in that: Multiple support arms (4) are rotatably mounted on the outer circumferential surface of the central sleeve (1). Each support arm (4) has a movable arm (5) slidably mounted on its outer surface along its length direction to adjust the overall unfolding size of the lifting device. A clamping arm (202) is rotatably mounted on the end of the movable arm (5) away from the corresponding support arm (4). A heating cylinder (204) is fixedly mounted on the bottom end of the clamping arm (202). A support claw (6) is rotatably mounted on the outer surface of the heating cylinder (204). A water storage cylinder (201) and a power storage cylinder (101) are fixedly mounted on the surface of the support arm (4). A vibrating cylinder (102) is fixedly mounted on the bottom end of the power storage cylinder (101). A vibration device is provided inside the vibrating cylinder (102). A central tube (108) is coaxially fixedly mounted inside the power storage cylinder (101).

2. The graphite crucible lifting device according to claim 1, characterized in that: A movable cylinder (12) is coaxially arranged below the central sleeve (1). Multiple traction rods (13) are rotatably installed on the outer circumferential surface of the movable cylinder (12). The ends of the traction rods (13) away from the movable cylinder (12) are rotatably connected to the middle of the corresponding support arm (4). A diameter fine adjustment sleeve (11) is inserted through the bottom end of the central sleeve (1), and the movable cylinder (12) is threaded onto the surface of the diameter fine adjustment sleeve (11).

3. A graphite crucible lifting device according to claim 2, characterized in that: A guide pipe (203) is fixedly connected to the surface of the heating cylinder (204), and a telescopic pipe (208) is inserted inside the water storage cylinder (201). The end of the guide pipe (203) away from the heating cylinder (204) is fixedly connected to the bottom end of the telescopic pipe (208).

4. A graphite crucible lifting device according to claim 3, characterized in that: A booster cylinder (105) is fixedly installed at the inner end of the power storage cylinder (101), and a manifold (104) is fixedly installed at the upper end of the booster cylinder (105). The end of the manifold (104) away from the booster cylinder (105) is fixedly connected to the surface of the water storage cylinder (201).

5. A graphite crucible lifting device according to claim 4, characterized in that: The upper end of the central tube (108) passes through and extends into the interior of the booster cylinder (105). A switch plug (109) is slidably sleeved on the outer surface of the central tube (108). A partition ring (107) is fixedly installed at the inner end of the accumulator cylinder (101).

6. A graphite crucible lifting device according to claim 5, characterized in that: The switch plug (109) and the isolation ring (107) are connected by a compression spring (106). The outer surface of the central tube (108) is provided with a guide hole (110) and a transmission hole (111). The guide hole (110) is located above the isolation ring (107), and the transmission hole (111) is located below the isolation ring (107).

7. A graphite crucible lifting device according to claim 1, characterized in that: The vibration device includes an output pipe (301), which is fixedly installed inside the vibration cylinder (102). A vibration sleeve (302) is fixedly installed at the inner end of the vibration cylinder (102). A passive ring (304) is rotatably installed at the inner end of the vibration sleeve (302). An eccentric block (305) is rotatably installed at the inner end of the passive ring (304), so that the passive ring (304) can generate high-frequency vibration during rotation.

8. A graphite crucible lifting device according to claim 7, characterized in that: The output tube (301) has a side spray hole (303) on its surface, the side spray hole (303) is located inside the vibration sleeve (302), the bottom end of the central tube (108) has a pressure relief hole (114), and a central rod (113) is axially inserted inside the central tube (108).

9. A graphite crucible lifting device according to claim 8, characterized in that: A pressure relief plug (115) is fixedly installed at the bottom end of the central rod (113), and the pressure relief plug (115) is correspondingly arranged with the pressure relief hole (114). A movable block (103) is provided at the upper end of the accumulator (101), and the bottom end of the movable block (103) is fixedly connected to the central rod (113). A pressure block (14) is fixedly installed on the outer surface of the central sleeve (1).

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