A graphite crucible hoisting device

Abstract

The utility model relates to the technical field of crucible hoisting, disclose a graphite crucible hoisting device, including support frame, the support frame top slidingly connected has the lifting frame, the lifting frame top fixedly connected with electric telescopic handle, electric telescopic handle output fixedly connected with the connecting frame, the support frame bottom is provided with the moving wheel, the support frame side wall fixedly connected with the hydraulic pressure rod, the lifting frame side wall fixedly connected in hydraulic pressure rod output end, the lifting frame side wall fixedly connected with the hollow column, the hollow column outer wall has set up and has L type groove, the hollow column inside is provided with the limit component, the limit component includes the column of clamping, in the utility model, through the hydraulic pressure rod output end drive lifting frame on the support frame sliding, thereby reached the stable adjustment device adaptation graphite crucible hoisting's height, solved the traditional hoisting device height adjustment after easy to sway, the problem of not firm positioning, improved the stability of height adjustment in hoisting operation.

Description

Technical Field

[0001] This utility model relates to the field of crucible hoisting technology, and in particular to a graphite crucible hoisting device. Background Technology

[0002] As a key piece of equipment in high-temperature smelting, metal casting, and chemical synthesis, graphite crucibles require extremely high stability and safety during hoisting. Traditional hoisting devices often employ fixed structures or simple adjustment mechanisms, which are difficult to adapt to the diverse needs of crucible size and height under different working conditions. Especially in industries such as metallurgy and chemicals, graphite crucibles need to be frequently transferred to furnaces, cooling zones, or processing positions. Precise adjustment and fixation of the hoisting height becomes a core element in ensuring operational efficiency and safety. In addition, the inner diameter of crucibles varies considerably, and hoisting devices with insufficient versatility are prone to unstable clamping or center of gravity shift, increasing operational risks. Therefore, developing a graphite crucible hoisting device with highly flexible adjustment and multi-specification adaptability is of great significance for improving the automation level and operational reliability of industrial production.

[0003] Existing graphite crucible hoisting devices typically use chains, wire ropes, or rigid connecting rods as lifting transmission components, and achieve vertical displacement by driving a motor or manual winch. The height adjustment mechanism mostly relies on racks and pinions, screws and nuts, and uses mechanical meshing or frictional resistance to maintain a fixed position.

[0004] Existing lifting devices generally suffer from unstable positioning and easy shaking after height adjustment. Traditional pin or rack positioning methods are affected by mechanical clearance and load inertia, which can easily cause micro-displacement during crucible lifting, resulting in the hovering position deviating from the target height. Especially in high-temperature environments, the thermal expansion of metal components further weakens the locking reliability, requiring repeated adjustments to compensate for the deviation. This lack of stability not only prolongs the operation time, but also poses a threat to safe production if sudden displacement causes crucible to tip over or molten material to splash. Therefore, a graphite crucible lifting device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a graphite crucible hoisting device, which aims to improve the problems of easy shaking and unstable positioning of the hoisting device after height adjustment in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A graphite crucible hoisting device includes a support frame, a lifting frame slidably connected to the top of the support frame, an electric telescopic rod fixedly connected to the top of the lifting frame, a connecting frame fixedly connected to the output end of the electric telescopic rod, casters provided at the bottom of the support frame, a hydraulic rod fixedly connected to the side wall of the support frame, a lifting frame fixedly connected to the output end of the hydraulic rod, a hollow column fixedly connected to the side wall of the lifting frame, an L-shaped groove formed on the outer wall of the hollow column, and a limit component provided inside the hollow column.

[0008] The limiting component includes a locking post, which is slidably connected inside the hollow column. A pull rod is fixedly connected to the outer wall of the locking post. A sliding disc is slidably connected inside the hollow column. A reset component is provided on the outer wall of the locking post. A hydraulic cylinder is fixedly connected inside the connecting frame. A fixing ring is fixedly connected to the output end of the hydraulic cylinder. An inner support component is provided on the outer wall of the fixing ring.

[0009] As a further description of the above technical solution:

[0010] The locking post engages with the support frame, and the pull rod is slidably connected to the inner wall of the L-shaped groove.

[0011] As a further description of the above technical solution:

[0012] The reset assembly includes a spring, one end of which is fixedly connected to the side wall of the sliding disk, and the other end of which is fixedly connected to the inner wall of the hollow column.

[0013] As a further description of the above technical solution:

[0014] The inner support assembly includes a crank three and a connecting rod three. One end of the crank three is rotatably connected to the outer wall of the fixed ring, and one end of the connecting rod three is rotatably connected to the other end of the crank three.

[0015] As a further description of the above technical solution:

[0016] The other end of the connecting rod three is fixedly connected to an inner support plate, and the inner wall of the inner support plate is fixedly connected to a connecting rod two.

[0017] As a further description of the above technical solution:

[0018] One end of the connecting rod is rotatably connected to a crank, and one end of the crank is rotatably connected to a fixing block. One side of the fixing block is fixedly connected to the outer wall of the connecting frame.

[0019] As a further description of the above technical solution:

[0020] A connecting rod is fixedly connected to the inner wall of the inner support plate, and a crank is rotatably connected to one end of the connecting rod.

[0021] As a further description of the above technical solution:

[0022] One end of the crank is rotatably connected to a fixing block, and one side of the fixing block is fixedly connected to the outer wall of the connecting frame.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the lifting frame is driven to slide on the support frame by the output end of the hydraulic rod, so as to achieve the initial adjustment of the device height. At the same time, the limiting component in the hollow column can engage with the support frame, and the locking column can be unlocked by sliding in the L-shaped groove with the pull rod. The reset component composed of spring and sliding plate can fix and limit the lifting frame after the height is adjusted, so as to achieve stable adjustment of the height of the device to adapt to the graphite crucible hoisting. This solves the problem of easy shaking and unstable positioning after the height adjustment of the traditional hoisting device, and improves the stability of height adjustment in hoisting operation.

[0025] 2. In this utility model, the output end of the hydraulic cylinder drives the fixed ring to move downward, and the crank three moves with the fixed ring, driving the connecting rod three, thereby causing the inner support plate to move in tandem. The connecting rod two and the crank two on the inner support plate cooperate with the fixed block two, and the connecting rod one and the crank one cooperate with the fixed block one, so as to realize the inner support plate to support graphite crucibles of different inner diameters. This makes the device adaptable to the hoisting of graphite crucibles of various specifications, solving the limitation of single specification adaptation and improving the applicability and versatility of the device to different working conditions. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a graphite crucible hoisting device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the lifting frame structure of a graphite crucible hoisting device proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the internal support plate structure of a graphite crucible hoisting device proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the fixing ring structure of a graphite crucible hoisting device proposed in this utility model.

[0031] Legend:

[0032] 1. Support frame; 2. Lifting frame; 3. Electric telescopic rod; 4. Connecting frame; 5. Moving wheel; 6. Hydraulic rod; 7. Hollow column; 8. L-shaped groove; 9. Locking column; 10. Tie rod; 11. Sliding plate; 12. Spring; 13. Hydraulic cylinder; 14. Fixing block one; 15. Crank one; 16. Connecting rod one; 17. Inner support plate; 18. Connecting rod two; 19. Crank two; 20. Fixing block two; 21. Fixing ring; 22. Crank three; 23. Connecting rod three. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-5 This utility model provides an embodiment of a graphite crucible hoisting device, including a support frame 1, a lifting frame 2 slidably connected to the top of the support frame 1 for vertical lifting adjustment of the device, an electric telescopic rod 3 fixedly connected to the top of the lifting frame 2 for auxiliary height fine adjustment function, a connecting frame 4 fixedly connected to the output end of the electric telescopic rod 3 as the installation base of the inner support component, a moving wheel 5 provided at the bottom of the support frame 1 for easy overall movement and positioning of the device, a hydraulic rod 6 fixedly connected to the side wall of the support frame 1 as the main driving force source of the lifting frame 2, a linear movement of the lifting frame 2 achieved by the output end of the hydraulic rod 6 fixedly connected to the side wall of the lifting frame 2, a hollow column 7 fixedly connected to the side wall of the lifting frame 2 for accommodating the limiting component, an L-shaped groove 8 provided on the outer wall of the hollow column 7 for providing a sliding trajectory for the pull rod 10, and a limiting component provided inside the hollow column 7 for fixing the height position of the lifting frame 2;

[0035] The limiting component includes a locking pin 9 for engaging with the support frame 1 to achieve height locking. The locking pin 9 is slidably connected inside the hollow column 7 to achieve the telescopic movement of the limiting component. A pull rod 10 is fixedly connected to the outer wall of the locking pin 9 for manual unlocking. A sliding disk 11 is slidably connected inside the hollow column 7 as a moving part of the reset component. A reset component is provided on the outer wall of the locking pin 9 for automatically resetting the locked position of the locking pin 9. A hydraulic cylinder 13 is fixedly connected inside the connecting frame 4 as the power source of the inner support component. A fixed ring 21 is fixedly connected to the output end of the hydraulic cylinder 13 for transmitting the driving force of the hydraulic cylinder 13. An inner support component is provided on the outer wall of the fixed ring 21 to adapt to graphite crucibles with different inner diameters.

[0036] Reference Figures 1-5The locking post 9 engages with the support frame 1 to lock the height position of the lifting frame 2. The pull rod 10 is slidably connected to the inner wall of the L-shaped groove 8 to control the unlocking operation of the locking post 9. The reset assembly includes a spring 12 to provide the automatic reset force of the locking post 9. One end of the spring 12 is fixedly connected to the side wall of the sliding plate 11 to transmit the force of the spring 12. The other end of the spring 12 is fixedly connected to the inner wall of the hollow column 7 as a fixed support point for the spring 12. The inner support assembly includes a crank 3 22 and a connecting rod 3 23 to transmit the power of the hydraulic cylinder 13 to the inner support plate 17. One end of the crank 3 22 is rotatably connected to the outer wall of the fixed ring 21 as a power input point. One end of the connecting rod 3 23 is rotatably connected to the other end of the crank 3 22 to change the direction of force transmission. The other end of the connecting rod 3 23 is fixedly connected to the inner support plate 17 for direct connection. The inner wall of the graphite crucible is supported by a connecting rod 18 fixedly connected to the inner wall of the inner support plate 17 to assist in the movement guidance of the inner support plate 17. One end of the connecting rod 18 is rotatably connected to a crank 19 to increase the stability of the inner support mechanism. One end of the crank 19 is rotatably connected to a fixing block 20 as the fixed fulcrum of the crank 19. One side of the fixing block 20 is fixedly connected to the outer wall of the connecting frame 4 to fix the entire inner support mechanism. The inner wall of the inner support plate 17 is fixedly connected to a connecting rod 16 to balance the force on the inner support plate 17. One end of the connecting rod 16 is rotatably connected to a crank 15 to form a multi-link support structure. One end of the crank 15 is rotatably connected to a fixing block 14 as the rotation center of the crank 15. One side of the fixing block 14 is fixedly connected to the outer wall of the connecting frame 4 to ensure the overall rigidity of the inner support mechanism.

[0037] Working principle: When the device is working, the output end of the hydraulic rod 6 drives the lifting frame 2 to slide on the support frame 1 to adjust the height. During the adjustment process, the pull rod 10 inside the hollow column 7 can slide in the L-shaped groove 8. The design of the L-shaped groove 8 allows the limiting component to be unlocked. When it is necessary to fix the position of the lifting frame 2, the locking column 9 is engaged with the support frame 1 by the reset component composed of the spring 12 and the sliding plate 11 to achieve the limit. When the graphite crucible is hoisted, the output end of the electric telescopic rod 3 drives the connecting frame 4 to move to the appropriate position. Then, the output end of the hydraulic cylinder 13 drives the fixing ring 21 to move downward. The fixing ring 21 drives the crank 3 22 to move. The crank 3 22 drives the connecting rod 3 23. The connecting rod 3 23 drives the inner support plate 17. The connecting rod 2 18 on the inner support plate 17 drives the crank 2 19 to rotate around the fixing block 2 20. The connecting rod 1 16 drives the crank 1 15 to rotate around the fixing block 1 14. Multiple sets of connecting rods work together to make the inner support plate 17 support graphite crucibles of different inner diameters, thus completing the hoisting.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A graphite crucible lifting device comprising a support frame (1), characterised in that: The support frame (1) is slidably connected to the top of the lifting frame (2), the top of the lifting frame (2) is fixedly connected to the electric telescopic rod (3), the output end of the electric telescopic rod (3) is fixedly connected to the connecting frame (4), the bottom of the support frame (1) is provided with a moving wheel (5), the side wall of the support frame (1) is fixedly connected to the hydraulic rod (6), the side wall of the lifting frame (2) is fixedly connected to the output end of the hydraulic rod (6), the side wall of the lifting frame (2) is fixedly connected to the hollow column (7), the outer wall of the hollow column (7) is provided with an L-shaped groove (8), and the hollow column (7) is provided with a limit component inside; The limiting component includes a locking post (9), which is slidably connected inside the hollow column (7). A pull rod (10) is fixedly connected to the outer wall of the locking post (9). A sliding disc (11) is slidably connected inside the hollow column (7). A reset component is provided on the outer wall of the locking post (9). A hydraulic cylinder (13) is fixedly connected inside the connecting frame (4). A fixing ring (21) is fixedly connected to the output end of the hydraulic cylinder (13). An inner support component is provided on the outer wall of the fixing ring (21).

2. The graphite crucible hoisting device according to claim 1, characterized in that: The locking post (9) engages with the support frame (1), and the pull rod (10) is slidably connected to the inner wall of the L-shaped groove (8).

3. The graphite crucible hoisting device according to claim 1, characterized in that: The reset assembly includes a spring (12), one end of which is fixedly connected to the side wall of the sliding disk (11), and the other end of which is fixedly connected to the inner wall of the hollow column (7).

4. The graphite crucible hoisting device according to claim 1, characterized in that: The inner support assembly includes a crank three (22) and a connecting rod three (23). One end of the crank three (22) is rotatably connected to the outer wall of the fixed ring (21), and one end of the connecting rod three (23) is rotatably connected to the other end of the crank three (22).

5. The graphite crucible hoisting device according to claim 4, characterized in that: The other end of the connecting rod three (23) is fixedly connected to an inner support plate (17), and the inner wall of the inner support plate (17) is fixedly connected to a connecting rod two (18).

6. The graphite crucible hoisting device according to claim 5, characterized in that: One end of the connecting rod (18) is rotatably connected to the crank (19), and one end of the crank (19) is rotatably connected to the fixing block (20). One side of the fixing block (20) is fixedly connected to the outer wall of the connecting frame (4).

7. A graphite crucible hoisting device according to claim 6, characterized in that: The inner wall of the inner support plate (17) is fixedly connected to a connecting rod (16), and one end of the connecting rod (16) is rotatably connected to a crank (15).

8. The graphite crucible hoisting device according to claim 7, characterized in that: One end of the crank (15) is rotatably connected to a fixing block (14), and one side of the fixing block (14) is fixedly connected to the outer wall of the connecting frame (4).

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