Furnace cover limiting device of vacuum furnace

Abstract

The utility model relates to the technical field of vacuum furnaces, and discloses a vacuum furnace cover limiting device which comprises a vacuum furnace body and a furnace top cover, and a limiting assembly is arranged between the vacuum furnace body and the furnace top cover. According to the limiting device for the furnace cover of the vacuum furnace, the hinge seat, the movable rod and the fixed block in the limiting assembly are designed in a matched mode, so that the movable rod can rotate around the hinge shaft and is clamped into the U-shaped groove, a hexagonal limiting cap and a gasket are matched, the hexagonal limiting cap is in threaded connection with a thread line, and rapid locking and unlocking of the furnace top cover and the vacuum furnace body are achieved; the opening and closing time is effectively shortened, meanwhile, the structural design of the limiting assembly is simplified, a sealing ring is made of a high-temperature-resistant silica gel material to fill gaps of a furnace body, gas leakage is effectively prevented, the hole site design of a carrying piece and symmetrical distribution of hoisting rings are combined with the reinforcing effect of a supporting pile and a positioning plate, and the equipment carrying efficiency and stability are remarkably improved; the method is suitable for light alloy heat treatment scenes such as aluminum alloy die castings.

Description

Technical Field

[0001] This application relates to the field of vacuum furnace technology, specifically a vacuum furnace lid limiting device. Background Technology

[0002] A vacuum furnace is a device that can effectively ensure the sealing of the furnace body. It can be used for tempering general metal parts in air, as well as for quenching, annealing, and aging heat treatment of light alloy parts such as aluminum alloy die castings, pistons, and aluminum plates.

[0003] During the use of a vacuum furnace, the furnace lid needs to be limited to effectively ensure the furnace body's sealing. Most existing limiting structures are quite complex. How to simplify the limiting structure of the furnace lid to reduce the difficulty of opening and closing the furnace lid while ensuring the limiting effect is a technical problem that needs to be solved. To solve the above problem, a vacuum furnace lid limiting device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a vacuum furnace lid limiting device, which simplifies the structural design of the lid limiting device, enables rapid limiting and releasing of the lid, and features a simple, reliable structure and excellent sealing effect.

[0005] To achieve the above objectives, this application provides the following technical solution: a vacuum furnace lid limiting device, comprising a vacuum furnace body and a furnace top cover, wherein a limiting component is provided between the vacuum furnace body and the furnace top cover, the limiting component comprising a plurality of hinge seats fixedly connected to the upper surface of the vacuum furnace body, each hinge seat having a movable rod hinged inside, each movable rod having a threaded line at its top end, and each threaded line having a hexagonal limiting cap threadedly connected to its outer surface, the upper surface of the furnace top cover having a plurality of fixing blocks fixedly connected, each fixing block having a U-shaped groove at one end, the movable rod being adapted to the U-shaped groove, and each fixing block having a gasket fixedly connected to its upper surface, the hexagonal limiting cap being adapted to the gasket.

[0006] Through the above scheme, the design of the hinge seat, movable rod, and fixed block in the limiting assembly allows the movable rod to rotate around the hinge axis and engage with the U-shaped groove. Combined with the hexagonal limiting cap and gasket, the hexagonal limiting cap is threaded to the threaded wire, enabling rapid locking and unlocking of the furnace top cover and the vacuum furnace body. This effectively shortens the opening and closing time and simplifies the structural design of the limiting assembly. The sealing ring uses high-temperature resistant silicone to fill the gaps in the furnace body, effectively preventing gas leakage. The hole design of the transport plates and the symmetrical distribution of the lifting rings, combined with the reinforcement effect of the support piles and positioning plates, significantly improve the equipment handling efficiency and stability. This design is suitable for heat treatment scenarios involving light alloys such as aluminum alloy die castings.

[0007] Furthermore, the number of the fixing blocks corresponds to the number of the hinge seats, and the positions of the multiple fixing blocks correspond to the positions of the multiple hinge seats.

[0008] The above scheme ensures precise alignment between the movable rod and the U-shaped groove of the fixed block, achieving uniform force distribution at multiple points, preventing deformation of the furnace top cover due to excessive local stress, and improving the stability of the limiting position.

[0009] Furthermore, the furnace top cover is disposed on the top of the vacuum furnace body, and the furnace top cover is limited to the top of the vacuum furnace body by a limiting component.

[0010] The above solution, through the linkage design of the limiting components, quickly locks the furnace top cover to the vacuum furnace body, simplifies the fastening method, shortens the opening and closing time, and is more practical.

[0011] Furthermore, a sealing ring is fixedly connected to the bottom end of the furnace top cover. The sealing ring is located between the vacuum furnace body and the furnace top cover, and the sealing ring is made of high-temperature resistant silicone material.

[0012] The above solution uses a sealing ring that fills the gap between the vacuum furnace body and the furnace top cover, maintaining elasticity even under high temperature and high pressure conditions, effectively preventing gas leakage and making it more practical.

[0013] Furthermore, a plurality of transport plates are fixedly connected to the outer surface of the vacuum furnace body, and each transport plate has a transport hole inside.

[0014] The above solution allows for easy insertion of the holes in the transport plate by forklifts or lifting equipment, enabling rapid movement and positioning of the vacuum furnace body, reducing the risks of manual handling, and meeting the needs of frequent workstation adjustments in the workshop.

[0015] Furthermore, four support piles are fixedly connected to the bottom surface of the vacuum furnace body, and a positioning plate is fixedly connected to the bottom end of each support pile.

[0016] The above solution uses high-carbon steel for the support piles and positioning plates, which are fixed to the ground with bolts to enhance the overall stability of the vacuum furnace body, prevent displacement caused by vibration or uneven load, and reduce positioning accuracy errors.

[0017] Furthermore, a drive assembly is installed on the top of the furnace top cover, the drive assembly is located at the center of the furnace top cover, and two external components are installed on the top of the furnace top cover.

[0018] The above scheme achieves a more stable heat treatment process by having the drive components and external components work together.

[0019] Furthermore, the top of the furnace cover is fixedly connected with four lifting rings.

[0020] With the above scheme, the lifting rings are symmetrically distributed at the four corners of the furnace top cover and connected to the crane by steel wire ropes, which facilitates the vertical lifting and replacement of the furnace top cover and shortens the lifting time for each operation.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This vacuum furnace lid limiting device features a hinged seat, movable rod, and fixed block design within the limiting assembly. The movable rod rotates around the hinge axis and engages in a U-shaped groove. Combined with a hexagonal limiting cap and a gasket, the hexagonal limiting cap is threaded into the threaded connection, enabling rapid locking and unlocking of the furnace lid and the vacuum furnace body. This effectively shortens opening and closing time and simplifies the structural design of the limiting assembly. The sealing ring uses high-temperature resistant silicone to fill the furnace body gaps, effectively preventing gas leakage. The hole design of the transport plates and the symmetrical distribution of the lifting rings, combined with the reinforcement effect of the support piles and positioning plates, significantly improve the equipment's handling efficiency and stability. It is suitable for heat treatment of light alloys such as aluminum alloy die-castings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall front view of the structure of this application;

[0024] Figure 2 This is a schematic diagram of the overall bottom view of the structure of this application;

[0025] Figure 3 This is a schematic diagram of the overall planar structure of the present application.

[0026] Figure 4 This is a top view of the overall structure of this application.

[0027] Figure 5 For the structure of this application Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0028] In the picture:

[0029] 1. Vacuum furnace body; 2. Furnace top cover; 3. Limiting assembly; 301. Hinge seat; 302. Movable rod; 303. Threaded wire; 304. Hexagonal limit cap; 305. Fixing block; 306. U-shaped groove; 307. Gasket; 308. Sealing ring; 4. Transport plate; 5. Support pile; 6. Positioning plate; 7. Drive assembly; 8. External assembly; 9. Lifting ring. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 3 and Figure 5 This embodiment of a vacuum furnace lid limiting device includes a vacuum furnace body 1 and a furnace top cover 2. A limiting component 3 is provided between the vacuum furnace body 1 and the furnace top cover 2. The furnace top cover 2 is located on top of the vacuum furnace body 1 and is limited to the top of the vacuum furnace body 1 by the limiting component 3. Through the linkage design of the limiting component 3, the furnace top cover 2 and the vacuum furnace body 1 are quickly locked, simplifying the fastening method, shortening the opening and closing time, and making it more practical. The limiting component 3 includes multiple hinge seats 301 fixedly connected to the upper surface of the vacuum furnace body 1. Each hinge seat 301 has an internal... The furnace top cover 2 is hinged with movable rods 302, each with a threaded line 303 at its top. Each threaded line 303 has a hexagonal limit cap 304 threaded onto its outer surface. Multiple fixing blocks 305 are fixedly connected to the upper surface of the furnace top cover 2. Each fixing block 305 has a U-shaped groove 306 at one end. The movable rods 302 are adapted to the U-shaped grooves 306. The fixing blocks 305 are made of high-temperature ductile iron and are nitrided to enhance wear resistance. The inner wall of the U-shaped groove 306 is machined with a guide slope to facilitate the quick sliding and locking of the end of the movable rod 302.

[0032] It should be noted that when the furnace top cover 2 is closed, the operator rotates the movable rod 302 to make it rotate around the hinge seat 301. After the end of the movable rod 302 is inserted into the U-shaped groove 306, the hexagonal limit cap 304 is tightened to press the fixing block 305. At this time, the furnace top cover 2 and the vacuum furnace body 1 form a rigid connection. The single locking time is short, which improves the opening and closing efficiency. In addition, the limit component 3 adopts a symmetrical multi-point layout design. Multiple hinge seats 301 and fixing blocks 305 are evenly distributed around the circumference of the vacuum furnace body 1 and the furnace top cover 2 to ensure that the furnace cover is subjected to balanced force and avoid sealing failure due to local stress concentration. It is suitable for the heat treatment process of aluminum alloy die castings in a high temperature and high pressure vacuum environment.

[0033] Please see Figure 1 , Figure 3 and Figure 5The number of fixing blocks 305 corresponds to the number of hinge seats 301, and the positions of multiple fixing blocks 305 correspond to the positions of multiple hinge seats 301, ensuring precise alignment between the movable rod 302 and the U-shaped groove 306 of the fixing block 305, achieving multi-point uniform force distribution, preventing deformation of the furnace top cover 2 due to excessive local stress, and improving the limiting stability. A gasket 307 is fixedly connected to the upper surface of each fixing block 305, and a hexagonal limiting cap 304 is adapted to the gasket 307. A sealing ring is fixedly connected to the bottom end of the furnace top cover 2. 308, the sealing ring 308 is located between the vacuum furnace body 1 and the furnace top cover 2. The sealing ring 308 is made of high temperature resistant silicone material. The sealing ring 308 can fill the contact gap between the vacuum furnace body 1 and the furnace top cover 2. It can still maintain elasticity under high temperature and high pressure conditions, effectively preventing gas leakage and making it more practical. With the above structure, the vacuum furnace body 1 can still effectively prevent gas leakage under frequent opening and closing conditions, while avoiding deformation of the furnace top cover 2 due to local stress concentration, significantly improving the reliability and safety of equipment operation.

[0034] Please see Figure 1 , Figure 2 and Figure 4 Multiple transport plates 4 are fixedly connected to the outer surface of the vacuum furnace body 1. Each transport plate 4 has a transport hole inside. The hole design of the transport plate 4 facilitates the insertion of forklifts or lifting equipment, enabling rapid movement and positioning of the vacuum furnace body 1, reducing the risk of manual handling, and is suitable for the needs of frequent workstation adjustments in the workshop. Four support piles 5 are fixedly connected to the bottom surface of the vacuum furnace body 1. A positioning plate 6 is fixedly connected to the bottom end of each support pile 5. The support piles 5 and positioning plates 6 are made of high carbon steel and are fixed to the ground with bolts to enhance the overall stability of the vacuum furnace body 1. To prevent displacement caused by vibration or uneven load, and reduce positioning accuracy errors, a drive assembly 7 is installed on the top of the furnace top cover 2. The drive assembly 7 is located at the center of the furnace top cover 2. Two external components 8 are installed on the top of the furnace top cover 2. Through the cooperation of the drive assembly 7 and the external components 8, a more stable heat treatment process is achieved. Four lifting rings 9 are fixedly connected to the top of the furnace top cover 2. The lifting rings 9 are symmetrically distributed at the four corners of the furnace top cover 2 and are connected to the crane by steel wire ropes, which facilitates the vertical lifting and replacement of the furnace top cover 2 and shortens the single lifting time.

[0035] In this embodiment, a vacuum furnace cover limiting device is provided. The design of the hinge seat 301, movable rod 302 and fixed block 305 in the limiting component 3 allows the movable rod 302 to rotate around the hinge axis and be engaged in the U-shaped groove 306. With the cooperation of the hexagonal limiting cap 304 and the gasket 307, the hexagonal limiting cap 304 is threadedly connected to the threaded line 303, realizing the rapid locking and unlocking of the furnace top cover 2 and the vacuum furnace body 1, effectively shortening the opening and closing time, and simplifying the structural design of the limiting component 3. The sealing ring 308 is made of high-temperature resistant silicone material to fill the gap of the furnace body, effectively preventing gas leakage. The hole design of the transport plate 4 and the symmetrical distribution of the lifting ring 9, combined with the reinforcement effect of the support pile 5 and the positioning plate 6, significantly improve the equipment handling efficiency and stability, and is suitable for heat treatment scenarios of light alloys such as aluminum alloy die castings.

[0036] The working principle of the above embodiment is as follows: When the furnace top cover 2 needs to be closed, the operator manually rotates the movable rod 302 so that it rotates around the hinge axis of the hinge seat 301. The end of the movable rod 302 is aligned with the U-shaped groove 306 of the fixed block 305 and inserted into it. Then, the hexagonal limit cap 304 is screwed onto the top of the movable rod 302 through the thread 303, and the bottom surface of the hexagonal limit cap 304 is in close contact with the upper surface of the gasket 307 until the gasket 307 presses against the fixed block 305 to form a rigid limit. Then, the above steps are repeated until a multi-point locking effect is formed between the vacuum furnace body 1 and the furnace top cover 2. The sealing ring 308 is located between the furnace top cover 2 and the vacuum furnace body 1, and the elasticity of the high-temperature resistant silicone fills the gap of the contact surface. The furnace maintains a continuous seal. When the pressure is released, the hexagonal limit cap 304 is rotated in the opposite direction to release the pressure. The movable rod 302 disengages from the U-shaped groove 306, and the furnace top cover 2 can be vertically lifted by the lifting ring 9. The hole design of the transport plate 4 facilitates the transport of the vacuum furnace body 1. Combined with the reinforcement effect of the support pile 5 and the positioning plate 6, the stability of the vacuum furnace body 1 during transport or operation is ensured. The standardized interface of the external component 8 can be connected to a temperature sensor or a pressure monitoring device to provide real-time data feedback to the control system, thereby achieving stable management of the heat treatment process. The overall structure reduces redundant parts through the limit component 3. Combined with the replaceable hexagonal limit cap 304, it can adapt to different sealing pressure requirements, significantly reducing maintenance costs. It is suitable for high-efficiency heat treatment scenarios of light alloys such as aluminum alloy die castings.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum furnace lid limiting device, comprising a vacuum furnace body (1) and a furnace top cover (2), characterized in that: A limiting component (3) is provided between the vacuum furnace body (1) and the furnace top cover (2). The limiting component (3) includes multiple hinge seats (301) fixedly connected to the upper surface of the vacuum furnace body (1). Each hinge seat (301) has a movable rod (302) hinged inside. Each movable rod (302) has a threaded wire (303) at its top end. Each threaded wire (303) has a hexagonal limiting cap (304) threaded to its outer surface. Multiple fixing blocks (305) are fixedly connected to the upper surface of the furnace top cover (2). Each fixing block (305) has a U-shaped groove (306) at one end. The movable rod (302) is adapted to the U-shaped groove (306). Each fixing block (305) has a gasket (307) fixedly connected to its upper surface. The hexagonal limiting cap (304) is adapted to the gasket (307).

2. The vacuum furnace lid limiting device according to claim 1, characterized in that: The number of the fixing blocks (305) corresponds to the number of the hinge seats (301), and the positions of the plurality of fixing blocks (305) correspond to the positions of the plurality of hinge seats (301).

3. The vacuum furnace lid limiting device according to claim 1, characterized in that: The furnace top cover (2) is located on the top of the vacuum furnace body (1), and the furnace top cover (2) is limited to the top of the vacuum furnace body (1) by the limiting component (3).

4. The vacuum furnace lid limiting device according to claim 1, characterized in that: A sealing ring (308) is fixedly connected to the bottom end of the furnace top cover (2). The sealing ring (308) is located between the vacuum furnace body (1) and the furnace top cover (2). The sealing ring (308) is made of high-temperature resistant silicone material.

5. The vacuum furnace lid limiting device according to claim 1, characterized in that: Multiple transport plates (4) are fixedly connected to the outer surface of the vacuum furnace body (1), and each transport plate (4) has a transport hole inside.

6. The vacuum furnace lid limiting device according to claim 1, characterized in that: The bottom surface of the vacuum furnace body (1) is fixedly connected with four support piles (5), and each support pile (5) is fixedly connected with a positioning plate (6) at its bottom end.

7. The vacuum furnace lid limiting device according to claim 1, characterized in that: A drive assembly (7) is installed on the top of the furnace top cover (2). The drive assembly (7) is located at the center of the furnace top cover (2). Two external assemblies (8) are installed on the top of the furnace top cover (2).

8. The vacuum furnace lid limiting device according to claim 1, characterized in that: The top of the furnace cover (2) is fixedly connected with four lifting rings (9).

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