Atmosphere stirring device of vacuum pot-type furnace

By designing a collection frame, baffle, sealing block, and filter plate in the vacuum furnace, the problem of scale and rust falling into the furnace body was solved, achieving efficient collection and cleaning of scale and rust, ensuring full contact between the atmosphere and the specimen, and reducing manpower consumption.

CN223826792UActive Publication Date: 2026-01-23HEFEI ZHIRE EQUIP CO LTD
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Patent Information

Application Number
CN202422982723.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2026-01-23
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

The existing vacuum furnace atmosphere stirring device removes scales and rust from the workpiece surface, but the scales and rust fall into the furnace body, requiring a lot of manpower and time to clean.

Method used

An atmosphere stirring device for a vacuum tank furnace was designed. It uses a collection frame, baffle, sealing block and filter plate to collect and filter scale and rust. The atmosphere is formed by stirring wheel and air guide pipe to ensure that the atmosphere is fully wrapped around the specimen.

Benefits of technology

It achieves efficient collection and cleaning of scale and rust, reduces subsequent cleaning time, ensures full contact between the atmosphere and the specimen, and avoids manpower consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stirring devices, and discloses an atmosphere stirring device of a vacuum pot type furnace, which comprises a furnace body, an opening is arranged on the side wall of the furnace body, a collecting frame is arranged in the opening, a sealing gasket is arranged between the collecting frame and the furnace body, a baffle is arranged on one side of the collecting frame, and the baffle is arranged on the other side of the collecting frame. A sealing ring is arranged on the side, close to the collecting frame, of the baffle, and a sealing block is fixedly connected to the side, close to the sealing ring, of the collecting frame; through the arrangement of the collecting frame, the baffle, the sealing block and the filter plate, removed scales and rust can be conveniently collected, and it is avoided that workers need to consume much time to clean the scales and the rust in the later period; when the collecting frame needs to be cleaned, the baffle and the sealing block can be moved out of the collecting frame, so that the whole collecting frame is convenient to clean; a stirring wheel and an air guide pipe are arranged; under the action of the stirring wheel, the atmosphere forms a tornado form, so that the atmosphere and the test piece are wrapped more sufficiently.
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Description

Technical Field

[0001] This utility model relates to the field of stirring device technology, specifically an atmosphere stirring device for a vacuum tank furnace. Background Technology

[0002] The main function of the atmosphere stirring device in a vacuum furnace is to stir materials in a vacuum or atmospheric environment to achieve effects such as no oxidation, no decarburization, and no carburization. This device can effectively prevent oxidation of the workpiece surface, thereby avoiding decarburization and carburization.

[0003] However, the existing vacuum furnace atmosphere stirring device can remove phosphorus scale and rust from the workpiece surface, making the workpiece surface cleaner; however, the removed scale and rust will fall into the furnace body and need to be further cleaned, which requires more manpower and takes too long.

[0004] Therefore, it is necessary to provide an atmosphere stirring device for a vacuum tank furnace to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an atmosphere stirring device for a vacuum furnace, which facilitates the collection of removed scale and rust through the arrangement of a collection frame, baffle, sealing block and filter plate.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an atmosphere stirring device for a vacuum tank furnace, comprising a furnace body, an opening in the side wall of the furnace body, a collection frame disposed within the opening, a sealing gasket disposed between the collection frame and the furnace body, a baffle disposed on one side of the collection frame, a sealing ring disposed on the side of the baffle near the collection frame, a sealing block fixedly connected to the side of the collection frame near the sealing ring, a sealing groove disposed on the side of the collection frame near the baffle, the sealing groove being adapted to the baffle, a stirring cylinder disposed inside the furnace body, a filter plate and a placement plate disposed inside the furnace body, the placement plate being located on top of the filter plate, the stirring cylinder penetrating both the placement plate and the filter plate, connecting plates fixedly connected to both sides of the placement plate, the other side of the connecting plate being connected to the inner wall of the furnace body, and both ends of the filter plate being connected to the inner wall of the furnace body.

[0007] By adopting the above technical solution, the collection frame, baffle, sealing block and filter plate are set up to facilitate the collection of removed scale and rust, avoiding the need for staff to spend a lot of time cleaning it later; when it is necessary to clean the collection frame, the baffle and sealing block can be removed from the collection frame, which makes it easy to clean the entire collection frame.

[0008] A further feature of this invention is that: an air inlet pipe is provided at the top of the stirring cylinder, the air inlet pipe penetrates the stirring cylinder, the top of the stirring cylinder is connected to the air inlet pipe through a sealed bearing, an air storage box is provided at the bottom of the air inlet pipe, the air storage box is located at the bottom of the filter plate, multiple air guide pipes are provided at the top of the air storage box, the bottom of the air storage box is connected to the bottom of the stirring cylinder through a sealed bearing, and a stirring wheel is fixedly connected to the outer wall of the stirring cylinder.

[0009] By adopting the above technical solution, the atmosphere is injected into the furnace body through the air inlet pipe and then discharged through the air guide pipe. Under the action of the stirring wheel, the atmosphere forms a tornado, and the atmosphere will be more fully wrapped with the specimen.

[0010] A further feature of this invention is that: a mounting base is fixedly connected to the top wall of the furnace body, a motor is fixedly installed inside the mounting base, and a second gear is fixedly connected to the output end of the motor.

[0011] By adopting the above technical solution, it is convenient to drive the second gear to rotate.

[0012] A further feature of this invention is that a first gear is fixedly connected to the outer wall of the stirring cylinder, and the first gear meshes with a second gear.

[0013] By adopting the above technical solution, it is convenient to drive the first gear to rotate, which in turn drives the stirring drum to rotate. Under the action of the stirring wheel, the atmosphere forms a tornado shape.

[0014] A further feature of this invention is that a power box is provided at the bottom of the furnace body, and a control panel is provided on one side of the power box.

[0015] By adopting the above technical solution, the entire device can be operated through the control panel.

[0016] A further feature of this invention is that an exhaust pipe is provided at the top of the furnace body.

[0017] By adopting the above technical solution, it is convenient to evacuate the air from the furnace body, so that the furnace body is in a vacuum state.

[0018] In summary, this utility model has the following beneficial effects: the collection frame, baffle, sealing block, and filter plate facilitate the collection of removed scale and rust, avoiding the need for workers to spend a lot of time cleaning them later; when the collection frame needs to be cleaned, the baffle and sealing block can be removed from the collection frame, making it convenient to clean the entire collection frame; through the stirring wheel and air guide pipe, the atmosphere is formed in a tornado shape under the action of the stirring wheel, which makes the atmosphere more fully wrapped around the specimen. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0021] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the baffle and collection frame of this utility model;

[0023] Figure 5 This is a schematic diagram of the main structure of this utility model.

[0024] In the diagram: 1. Furnace body; 2. Gas outlet pipe; 3. First gear; 4. Gas inlet pipe; 5. Stirring drum; 6. Second gear; 7. Motor; 8. Mounting base; 9. Placement plate; 10. Connecting plate; 11. Filter plate; 12. Stirring wheel; 13. Gas storage tank; 14. Gas guide pipe; 15. Collection frame; 16. Sealing groove; 17. Baffle; 18. Sealing ring; 19. Sealing block; 20. Power box; 21. Control panel. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings of the embodiments thereof.

[0026] Please see Figures 1-5In this embodiment of the present invention, an atmosphere stirring device for a vacuum tank furnace includes a furnace body 1. An opening is provided on the side wall of the furnace body 1, and a collection frame 15 is disposed within the opening. A sealing gasket is provided between the collection frame 15 and the furnace body 1. A baffle 17 is provided on one side of the collection frame 15, and a sealing ring 18 is provided on the side of the baffle 17 near the collection frame 15. A sealing block 19 is fixedly connected to the side of the collection frame 15 near the sealing ring 18. A sealing groove 16 is provided on the side of the collection frame 15 near the baffle 17, and the sealing groove 16 is adapted to the baffle 17. The furnace body 1... The furnace body 1 is equipped with a stirring cylinder 5 and a filter plate 11 and a placement plate 9. The placement plate 9 is located on top of the filter plate 11. The stirring cylinder 5 passes through both the placement plate 9 and the filter plate 11. Connecting plates 10 are fixedly connected to both sides of the placement plate 9. The other side of the connecting plate 10 is connected to the inner wall of the furnace body 1. Both ends of the filter plate 11 are connected to the inner wall of the furnace body 1. In use, the test piece is placed on the placement plate 9. The air in the furnace body 1 is discharged from the furnace body 1 through the exhaust pipe 2 via the control panel 21, and then the atmosphere is introduced through the intake pipe 4. In body 1, the motor 7 is started, and the output of the motor 7 drives the second gear 6 to rotate, which in turn drives the first gear 3 to rotate, which in turn drives the stirring drum 5 to rotate. At the same time, the atmosphere enters the gas storage tank 13 through the air inlet pipe 4, and then exits through the air guide pipe 14. As the stirring drum 5 rotates, it drives the stirring wheel 12 to rotate. Under the rotation of the stirring wheel 12, the exited gas is output upward in the form of a tornado, so that the atmosphere is more fully wrapped with the specimen. The scales and rust on the surface of the processed specimen fall onto the filter plate 11. Since the filter plate 11 is set at an angle, the scales and rust are collected in the collection frame 15. Once the sample processing is complete, the collection frame 15 can be removed from the furnace body 1 to clean the internal scale and rust. When cleaning the collection frame 15, the baffle 17 can be removed to facilitate thorough cleaning of the collection frame 15. The arrangement of the collection frame 15, baffle 17, sealing block 19, and filter plate 11 facilitates the collection of removed scale and rust, avoiding the need for workers to spend a lot of time cleaning it later. When it is necessary to clean the collection frame 15, the baffle 17 and sealing block 19 can be removed from the collection frame 15 to facilitate cleaning of the entire collection frame 15.

[0027] In this embodiment, preferably, an air inlet pipe 4 is provided at the top of the stirring cylinder 5, the air inlet pipe 4 penetrates the stirring cylinder 5, the top of the stirring cylinder 5 is connected to the air inlet pipe 4 through a sealed bearing, and a gas storage box 13 is provided at the bottom of the air inlet pipe 4. The gas storage box 13 is located at the bottom of the filter plate 11, and a plurality of gas guide pipes 14 are provided at the top of the gas storage box 13. The bottom of the gas storage box 13 is connected to the bottom of the stirring cylinder 5 through a sealed bearing. An agitator 12 is fixedly connected to the outer wall of the stirring cylinder 5. The atmosphere is injected into the furnace body 1 through the air inlet pipe 4 and then discharged through the gas guide pipes 14. Under the action of the agitator 12, the atmosphere forms a tornado shape, and the atmosphere and the specimen are more fully enveloped.

[0028] In this embodiment, preferably, a mounting base 8 is fixedly connected to the top wall of the furnace body 1, a motor 7 is fixedly installed inside the mounting base 8, and a second gear 6 is fixedly connected to the output end of the motor 7; this facilitates driving the second gear 6 to rotate.

[0029] In this embodiment, preferably, a first gear 3 is fixedly connected to the outer wall of the stirring cylinder 5, and the first gear 3 meshes with the second gear 6; this facilitates the rotation of the first gear 3, which in turn drives the stirring cylinder 5 to rotate, and under the action of the stirring wheel 12, the atmosphere forms a tornado shape.

[0030] In this embodiment, preferably, a power box 20 is provided at the bottom of the furnace body 1, and a control panel 21 is provided on one side of the power box 20; the entire device can be operated through the control panel 21.

[0031] In this embodiment, preferably, the top of the furnace body 1 is provided with an air outlet pipe 2; this facilitates the evacuation of air from the furnace body 1, so that the furnace body 1 is in a vacuum state.

[0032] Working principle: During use, place the test piece on the placement plate 9, close the furnace door, connect the air inlet pipe 4 to the external atmosphere charging device, and connect the air outlet pipe 2 to the external air extraction device. Through the control panel 21, the air in the furnace body 1 is discharged outside the furnace body 1 through the air outlet pipe 2. Then, the atmosphere is introduced into the furnace body 1 through the air inlet pipe 4. Start the motor 7; the output end of the motor 7 drives the second gear 6 to rotate, which in turn drives the first gear 3 to rotate, thereby driving the stirring drum 5 to rotate. Simultaneously, the atmosphere enters the gas storage tank 13 through the air inlet pipe 4 and is then discharged through the gas guide pipe 14. Because the stirring drum 5 rotates... The movement of the stirring wheel 12 causes the gas to rotate, and the gas discharged from the stirring wheel 12 is output upward in the form of a tornado, so that the atmosphere is more fully wrapped around the specimen. The scales and rust on the surface of the specimen fall onto the filter plate 11. Since the filter plate 11 is set at an angle, the scales and rust are collected in the collection frame 15. After the specimen is processed, the collection frame 15 can be removed from the furnace body 1 to clean the scales and rust inside. When cleaning the collection frame 15, the baffle 17 can be removed to facilitate thorough cleaning of the collection frame 15.

[0033] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An atmosphere stirring device for a vacuum tank furnace comprising a furnace body (1), characterized in that: The side wall of the furnace body (1) is provided with an opening, a collecting frame (15) is arranged in the opening, a sealing gasket is arranged between the collecting frame (15) and the furnace body (1), a baffle (17) is arranged on one side of the collecting frame (15), a sealing ring (18) is arranged on the side of the baffle (17) close to the collecting frame (15), a sealing block (19) is fixedly connected to the side of the collecting frame (15) close to the sealing ring (18), a sealing groove (16) is formed in the side of the collecting frame (15) close to the baffle (17), the sealing groove (16) is matched with the baffle (17), a stirring cylinder (5) is arranged in the furnace body (1), a filter plate (11) and a placing plate (9) are arranged in the furnace body (1), the placing plate (9) is located on the top of the filter plate (11), the stirring cylinder (5) penetrates the placing plate (9) and the filter plate (11) respectively, the connecting plates (10) are fixedly connected to the two sides of the placing plate (9), the other side of the connecting plate (10) is connected with the inner wall of the furnace body (1), and the two ends of the filter plate (11) are connected with the inner wall of the furnace body (1).

2. The atmosphere stirring device of a vacuum tank furnace according to claim 1, wherein: The top of the stirring cylinder (5) is provided with an air inlet pipe (4), the air inlet pipe (4) penetrates the stirring cylinder (5), the top of the stirring cylinder (5) is connected with the air inlet pipe (4) through a sealing bearing, the bottom of the air inlet pipe (4) is communicated with a gas storage tank (13), the gas storage tank (13) is located at the bottom of the filter plate (11), the top of the gas storage tank (13) is communicated with a plurality of air guide pipes (14), the bottom of the gas storage tank (13) is connected with the bottom of the stirring cylinder (5) through a sealing bearing, and the outer wall of the stirring cylinder (5) is fixedly connected with a stirring wheel (12).

3. An atmosphere stirring device for a vacuum tank furnace according to claim 2, characterized in that: The top wall of the furnace body (1) is fixedly connected with a mounting seat (8), the mounting seat (8) is fixedly installed with a motor (7) inside, and the output end of the motor (7) is fixedly connected with a second gear (6).

4. A gas atmosphere stirring device for a vacuum tank furnace according to claim 3, wherein: The outer wall of the stirring cylinder (5) is fixedly connected with a first gear (3), and the first gear (3) is engaged with the second gear (6).

5. The atmosphere stirring device of a vacuum tank furnace according to claim 1, wherein: The bottom of the furnace body (1) is provided with a power box (20), and the power box (20) is provided with a control panel (21) on one side.

6. The atmosphere stirring device of a vacuum tank furnace according to claim 1, wherein: The top of the furnace body (1) is provided with an air outlet pipe (2).