Special crucible quick replacement device for niobium-aluminum alloy smelting
By designing a special crucible quick-change device for niobium-aluminum alloy smelting, and employing the coordinated operation of lifting and clamping components, the problem of low efficiency in multi-person collaborative changing is solved, enabling single-person quick changing and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG GUANGLIN NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-28
AI Technical Summary
The existing niobium-aluminum alloy smelting equipment requires multiple people to work together when changing special crucibles, resulting in low changeover efficiency and affecting production continuity.
A quick-change device comprising a base, a lifting assembly, and a clamping assembly was designed. Through the coordinated action of the clamping assembly and the lifting assembly, the clamping, lifting, and transfer of the crucible can be achieved by a single person. The threaded drive and gear meshing drive ensure precise adjustment and stable clamping.
It enables a single person to quickly change special crucibles, improves the continuity of the niobium-aluminum alloy smelting production line, reduces the risk of shaking and collision of high-temperature crucibles, and improves operational safety and efficiency.
Smart Images

Figure CN224567881U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of crucible quick-change devices, and more specifically, it relates to a quick-change device for a special crucible used in niobium-aluminum alloy smelting. Background Technology
[0002] Niobium-aluminum alloys, with their excellent high-temperature strength, good oxidation resistance, and superior mechanical properties, have irreplaceable application value in high-end fields such as aerospace engines and high-temperature structural components. The smelting of these alloys requires extreme high-temperature environments above 1600℃, and the crucibles in direct contact with the molten metal must be made of special materials (such as high-temperature resistant ceramics or refractory metals) to resist corrosion and erosion from the high-temperature melt.
[0003] However, after long-term use, special crucibles may suffer surface damage or performance degradation due to high-temperature oxidation and melt erosion. If they continue to be used, they will contaminate the melt and affect the purity and mechanical properties of the niobium-aluminum alloy. Therefore, they must be replaced regularly.
[0004] Existing devices often require multiple people to work together to replace the crucible, which affects the efficiency of the replacement. To solve the above problems, we have introduced the following device. Utility Model Content
[0005] (1) Technical problems to be solved
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a special crucible quick-change device for niobium-aluminum alloy smelting, which has the feature of facilitating quick replacement of the crucible.
[0007] (2) Technical solution
[0008] To achieve the above objectives, this utility model provides a quick-change device for a special crucible used in niobium-aluminum alloy smelting, comprising a base, a lifting assembly, and a clamping assembly. The lifting assembly is fixedly connected to the upper surface of the base and is used to adjust the height of the clamping assembly. The clamping assembly is disposed on the side of the lifting assembly and is used to clamp and position the special crucible. A through hole is provided on the surface of the base, and the position of the through hole corresponds to the position of the clamping assembly.
[0009] When using the special crucible quick change device for niobium-aluminum alloy smelting using this technical solution, by setting up clamping components and lifting components, the clamping, lifting and transferring of the crucible can be completed by a single person under the synergistic action of the lifting components and clamping components, without the need for multiple people to cooperate. This solves the problem of low change efficiency caused by the reliance on manual cooperation in existing devices, significantly shortens the change time, and improves the continuity of the niobium-aluminum alloy smelting production line.
[0010] Furthermore, the lifting assembly includes a support arm, which is fixedly connected to the upper surface of the base. A functional compartment is formed inside the support arm, and a first forward and reverse motor is fixedly connected inside the functional compartment. A threaded column is fixedly connected to the upper end of the output shaft of the first forward and reverse motor, and a rotating shaft is fixedly connected to the upper end of the threaded column. The upper end of the rotating shaft is connected to the inside of the functional compartment through a bearing. A threaded cap is threadedly connected to the surface of the threaded column, and a connecting rod is fixedly connected to the side of the threaded cap. A movable groove is formed on the surface of the functional compartment, and the connecting rod passes through the movable groove. The other end of the connecting rod is fixedly connected to the side of the clamping assembly.
[0011] Furthermore, a sliding rod is fixedly connected to the side of the support arm, and a sliding sleeve is slidably connected to the surface of the sliding rod. The side of the sliding sleeve is fixedly connected to the side of the clamping assembly. There are two sets of the sliding rod and the sliding sleeve, and they are symmetrically arranged on both sides of the support arm.
[0012] Furthermore, the clamping assembly includes a movable platform, which is fixedly connected to the other end of the connecting rod. The side of the threaded cap is fixedly connected to the side of the movable platform. A transmission chamber is provided inside the movable platform, and a motorized chamber is provided inside the movable platform. A second forward and reverse motor is fixedly connected inside the motorized chamber. The output shaft of the second forward and reverse motor is connected to the surface of the motorized chamber via a bearing. A gear is fixedly connected to the surface of the output shaft of the second forward and reverse motor. Movable plates are provided on the side of the movable platform. There are two sets of movable plates, which are symmetrically arranged on both sides of the movable platform. A rack is fixedly connected to the side of the movable plate. The rack passes through the transmission chamber and meshes with the gear.
[0013] Furthermore, a guide rod is fixedly connected to the side of the movable plate, and a guide rail is fixedly connected to the side of the movable platform. The guide rod passes through the guide rail, and there are multiple sets of guide rails and guide rods, which are symmetrically arranged on both sides of the movable platform.
[0014] Furthermore, a push handle is fixedly connected to the side of the support arm, and an energy storage component is fixedly connected to the side of the support arm.
[0015] (3) Beneficial effects
[0016] In summary, this utility model has the following beneficial effects:
[0017] 1. This special crucible quick-change device for niobium-aluminum alloy smelting, by setting up a clamping component and a lifting component, allows a single person to operate the clamping, lifting and transferring of the crucible under the synergistic action of the lifting component and the clamping component, without the need for multiple people to cooperate. This solves the problem of low replacement efficiency caused by the reliance on manual cooperation in existing devices, significantly shortens the replacement time, and improves the continuity of the niobium-aluminum alloy smelting production line.
[0018] 2. This quick-change device for special crucibles used in niobium-aluminum alloy smelting, through the setting of guide rods and guide rails, drives two sets of movable plates to move synchronously in opposite directions through the meshing transmission of gears and racks, so as to achieve symmetrical clamping of the special crucibles. With the guiding effect of the guide rods and guide rails, it ensures that the clamping process is stable and without deviation.
[0019] 3. The special crucible quick-change device for niobium-aluminum alloy smelting is equipped with a lifting component and achieves precise height adjustment through threaded transmission, which avoids shaking of the crucible during lifting and lowering, reduces the risk of the high-temperature crucible falling or colliding, and improves operational safety. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;
[0022] Figure 2 This is a partial three-dimensional sectional view of the lifting component in this utility model;
[0023] Figure 3 This is a three-dimensional structural diagram of the clamping component in this utility model;
[0024] Figure 4 This is a partial cross-sectional view of the clamping component in this utility model.
[0025] The labels in the attached diagram are:
[0026] 1. Base; 2. Lifting assembly; 201. Support arm; 202. Functional compartment; 203. First forward / reverse motor; 204. Threaded column; 205. Rotating shaft; 206. Threaded cap; 207. Connecting rod; 208. Movable groove; 209. Slide rod; 210. Sliding sleeve; 3. Clamping assembly; 301. Movable platform; 302. Transmission compartment; 303. Motion compartment; 304. Second forward / reverse motor; 305. Gear; 306. Movable plate; 307. Rack; 308. Positioning hole; 309. Guide rail; 310. Guide rod; 4. Through hole; 5. Push handle; 6. Energy storage assembly. Detailed Implementation
[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.
[0028] Example:
[0029] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.
[0030] Please see Figure 1-4 This utility model provides a technical solution: a quick-change device for a special crucible for niobium-aluminum alloy smelting, including a base 1, a lifting component 2 and a clamping component 3. The lifting component 2 is fixedly connected to the upper surface of the base 1 and is used to adjust the height of the clamping component 3. The clamping component 3 is located on the side of the lifting component 2 and is used to clamp and position the special crucible. A through hole 4 is provided on the surface of the base 1, and the position of the through hole 4 corresponds to the position of the clamping component 3.
[0031] By adopting the above technical solution, and by setting up the clamping component 3 and the lifting component 2, the clamping, lifting and transfer of the crucible can be completed by a single person under the synergistic effect of the lifting component 2 and the clamping component 3, without the need for multiple people to cooperate. This solves the problem of low replacement efficiency caused by the reliance on manual cooperation in the existing equipment, significantly shortens the replacement time, and improves the continuity of the niobium-aluminum alloy smelting production line.
[0032] Specifically, the lifting assembly 2 includes a support arm 201, which is fixedly connected to the upper surface of the base 1. A functional compartment 202 is provided inside the support arm 201. A first forward and reverse motor 203 is fixedly connected inside the functional compartment 202. A threaded column 204 is fixedly connected to the upper end of the output shaft of the first forward and reverse motor 203. A rotating shaft 205 is fixedly connected to the upper end of the threaded column 204. The upper end of the rotating shaft 205 is connected to the inside of the functional compartment 202 through a bearing drive. A threaded cap 206 is threadedly connected to the surface of the threaded column 204. A connecting rod 207 is fixedly connected to the side of the threaded cap 206. A movable groove 208 is provided on the surface of the functional compartment 202. The connecting rod 207 passes through the movable groove 208. The other end of the connecting rod 207 is fixedly connected to the side of the clamping assembly 3.
[0033] Specifically, a slide rod 209 is fixedly connected to the side of the support arm 201, and a slide sleeve 210 is slidably connected to the surface of the slide rod 209. The side of the slide sleeve 210 is fixedly connected to the side of the clamping assembly 3. There are two sets of slide rods 209 and slide sleeves 210, which are symmetrically arranged on both sides of the support arm 201.
[0034] By adopting the above technical solution and setting up the lifting component 2, the height can be precisely adjusted through threaded transmission, avoiding shaking during the lifting and lowering of the crucible, reducing the risk of the high-temperature crucible falling or colliding, and improving operational safety.
[0035] Specifically, the clamping assembly 3 includes a movable platform 301, which is fixedly connected to the other end of the connecting rod 207. The side of the threaded cap 206 is fixedly connected to the side of the movable platform 301. A transmission chamber 302 is provided inside the movable platform 301. A motorized chamber 303 is provided inside the movable platform 301. A second forward and reverse motor 304 is fixedly connected inside the motorized chamber 303. The output shaft of the second forward and reverse motor 304 is connected to the surface of the motorized chamber 303 through a bearing. A gear 305 is fixedly connected to the surface of the output shaft of the second forward and reverse motor 304. A movable plate 306 is provided on the side of the movable platform 301. There are two sets of movable plates 306, which are symmetrically arranged on both sides of the movable platform 301. A rack 307 is fixedly connected to the side of the movable plate 306. The rack 307 passes through the transmission chamber 302 and meshes with the gear 305.
[0036] Specifically, a guide rod 310 is fixedly connected to the side of the movable plate 306, and a guide rail 309 is fixedly connected to the side of the movable platform 301. The guide rod 310 passes through the guide rail 309. There are multiple sets of guide rails 309 and guide rods 310, which are symmetrically arranged on both sides of the movable platform 301.
[0037] By adopting the above technical solution, and by setting guide rod 310 and guide rail 309, the meshing transmission of gear 305 and rack 307 drives two sets of movable plates 306 to move synchronously in opposite directions, so as to achieve symmetrical clamping of special crucible. With the guiding effect of guide rod 310 and guide rail 309, the clamping process is ensured to be stable and without deviation.
[0038] Specifically, a push handle 5 is fixedly connected to the side of the support arm 201, and an energy storage component 6 is fixedly connected to the side of the support arm 201.
[0039] The working principle of this utility model is as follows: First, the device is moved to the side of the smelting furnace where the crucible to be replaced by pushing handle 5, ensuring that the through hole 4 of the base 1 is aligned with the furnace opening, laying the foundation for the precise docking of the crucible in the future.
[0040] When the position of the clamping assembly 3 needs to be adjusted, the first forward and reverse motor 203 of the lifting assembly 2 is activated, and its output shaft drives the threaded column 204 to rotate in the functional compartment 202. Since the threaded cap 206 is threadedly connected to the threaded column 204, and the connecting rod 207 passes through the movable groove 208 to restrict the rotational freedom of the threaded cap 206, the threaded cap 206 will move up and down along the axial direction of the threaded column 204, thereby driving the clamping assembly 3 to rise and fall synchronously through the connecting rod 207. At the same time, the slide rod 209 and the slide sleeve 210 slide to provide guidance for the lifting and lowering of the clamping assembly 3, preventing tilting, until the height of the clamping assembly 3 is aligned with the clamping position of the crucible to be replaced.
[0041] When the crucible needs to be clamped, the second forward and reverse motor 304 of the clamping assembly 3 is activated, and its output shaft drives the gear 305 to rotate in the motorized chamber 303. The gear 305 meshes with the rack 307 on the side of the two sets of movable plates 306, driving the two sets of movable plates 306 to open synchronously in opposite directions along the guide rail 309, so that the movable plates 306 are placed on the outside of the crucible to be replaced. Then, the second forward and reverse motor 304 is activated in reverse, and the gear 305 drives the rack 307 to move in the opposite direction, so that the two sets of movable plates 306 move closer together until the crucible is tightly clamped, thus completing the fixation of the crucible.
[0042] Restart the first forward and reverse motor 203 to drive the clamping assembly 3 to lift the crucible and detach it from the melting furnace; move the device to the crucible storage or replacement position by pushing the handle 5 to ensure that the placement point of the new crucible corresponds to the position of the clamping assembly 3.
[0043] Start the first forward and reverse motor 203 to drive the clamping assembly 3 to descend and place the crucible stably; start the second forward and reverse motor 304 to open the movable plate 306, release the clamp on the crucible, and complete a single replacement operation; afterwards, the operation can be reversed to reset the device to the initial state and wait for the next replacement.
[0044] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A quick-change device for a special crucible used in niobium-aluminum alloy smelting, comprising a base (1), a lifting assembly (2), and a clamping assembly (3), characterized in that: The lifting component (2) is fixedly connected to the upper surface of the base (1). The lifting component (2) is used to adjust the height of the clamping component (3). The clamping component (3) is set on the side of the lifting component (2). The clamping component (3) is used to clamp and position the special crucible. The surface of the base (1) is provided with a through hole (4). The position of the through hole (4) corresponds to the position of the clamping component (3).
2. The quick-change device for a special crucible for niobium-aluminum alloy smelting according to claim 1, characterized in that: The lifting assembly (2) includes a support arm (201), which is fixedly connected to the upper surface of the base (1). The support arm (201) has a functional compartment (202) inside, and a first forward and reverse motor (203) is fixedly connected inside the functional compartment (202). A threaded column (204) is fixedly connected to the upper end of the output shaft of the first forward and reverse motor (203). A rotating shaft (205) is fixedly connected to the upper end of the threaded column (204). The upper end of the rotating shaft (205) is connected to the functional compartment (202) through a bearing. A threaded cap (206) is threadedly connected to the surface of the threaded column (204). A connecting rod (207) is fixedly connected to the side of the threaded cap (206). A movable groove (208) is opened on the surface of the functional compartment (202). The connecting rod (207) passes through the movable groove (208). The other end of the connecting rod (207) is fixedly connected to the side of the clamping assembly (3).
3. The quick-change device for a special crucible for niobium-aluminum alloy smelting according to claim 2, characterized in that: The support arm (201) is fixedly connected to a slide rod (209) on its side. A slide sleeve (210) is slidably connected to the surface of the slide rod (209). The side of the slide sleeve (210) is fixedly connected to the side of the clamping assembly (3). There are two sets of slide rods (209) and slide sleeves (210), which are symmetrically arranged on both sides of the support arm (201).
4. The quick-change device for the special crucible used in niobium-aluminum alloy smelting according to claim 3, characterized in that: The clamping assembly (3) includes a movable platform (301), which is fixedly connected to the other end of the connecting rod (207). The side of the threaded cap (206) is fixedly connected to the side of the movable platform (301). A transmission chamber (302) is provided inside the movable platform (301). A motorized chamber (303) is provided inside the movable platform (301). A second forward and reverse motor (304) is fixedly connected inside the motorized chamber (303). The output shaft of the second forward and reverse motor (304) passes through... The bearing is connected to the surface of the motor compartment (303). The output shaft of the second forward and reverse motor (304) is fixedly connected to a gear (305). The movable platform (301) is provided with a movable plate (306) on its side. There are two sets of movable plates (306), which are symmetrically arranged on both sides of the movable platform (301). The movable plate (306) is fixedly connected to a rack (307) on its side. The rack (307) passes through the transmission compartment (302) and meshes with the gear (305).
5. The quick-change device for a special crucible for niobium-aluminum alloy smelting according to claim 4, characterized in that: The movable plate (306) is fixedly connected to a guide rod (310) on its side, and the movable platform (301) is fixedly connected to a guide rail (309) on its side. The guide rod (310) passes through the guide rail (309). There are multiple sets of guide rails (309) and guide rods (310), and they are symmetrically arranged on both sides of the movable platform (301).
6. The quick-change device for a special crucible for niobium-aluminum alloy smelting according to claim 2, characterized in that: A push handle (5) is fixedly connected to the side of the support arm (201), and an energy storage component (6) is fixedly connected to the side of the support arm (201).