Industrial furnace with air guide structure
By introducing adjustment and fixing components into the industrial furnace, and utilizing the heat-resistant motor to drive the guide vane angle adjustment and the detachable fixing sleeve design, the problem of the air guide structure being unable to flexibly adjust the airflow distribution is solved, achieving temperature uniformity and convenient equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MINGTAI IND HOT PLATES MFG CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-15
AI Technical Summary
The existing air guide structure of industrial furnaces cannot flexibly adjust the airflow distribution, resulting in uneven temperature field inside the furnace and affecting the performance stability of the workpiece.
It employs adjustment and fixing components, and drives the gears to rotate via a heat-resistant motor to adjust the angle of the guide vanes and change the airflow direction. Combined with the detachable fixing sleeve design, it facilitates equipment maintenance.
It enables flexible adjustment of airflow distribution according to workpiece specifications and heat treatment processes, improves the temperature uniformity inside the furnace, enhances product quality stability, and simplifies equipment maintenance.
Smart Images

Figure CN224243147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial furnace technology, and in particular to an industrial furnace with an air guiding structure. Background Technology
[0002] Industrial aging furnaces, as key equipment in the heat treatment of metallic materials, play an irreplaceable role in high-end manufacturing fields such as aerospace, automotive manufacturing, and precision instruments. Aging treatment, through precise control of temperature and time, can significantly improve the strength, hardness, and dimensional stability of metallic materials. During the aging process, the uniformity and direction of airflow within the furnace directly affect the heat treatment quality. A reasonable airflow structure not only ensures uniform heat transfer and avoids localized over-aging or under-aging of workpieces, but also shortens the processing cycle and reduces energy consumption. Therefore, optimizing the airflow structure of the aging furnace to achieve precise and flexible adjustment of airflow direction has become a core technological requirement for improving the quality and production efficiency of metallic material heat treatment.
[0003] Existing industrial furnace air guide structures mostly use fixed blades. Fixed blade air guide structures usually have guide blades with a fixed angle set inside the furnace body. The fixed shape of the blades guides the airflow direction. The technical principle of this structure is to use the geometry of the blades to block and guide the airflow, so that the airflow flows along a preset path.
[0004] Once the angle of the blades in existing industrial furnaces is determined, it cannot be dynamically changed during the production process. When processing workpieces of different specifications and with different heat treatment process requirements, the airflow distribution cannot be flexibly adjusted, which can easily lead to uneven temperature field inside the furnace and cause differences in workpiece performance. Therefore, an industrial furnace with an air guiding structure is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an industrial furnace with an air guiding structure, which aims to improve the problem in the prior art that when processing workpieces of different specifications and with different heat treatment process requirements, the airflow distribution cannot be flexibly adjusted, which easily leads to uneven temperature field inside the furnace.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An industrial furnace with an air guiding structure includes a furnace body, a furnace door provided on the side wall of the furnace body, a heating plate provided inside the furnace body, a fan fixedly connected to the top of the furnace body, an air guide hood fixedly connected to the lower surface of the fan, an adjustment component provided inside the air guide hood, and a fixing component provided inside the heating plate.
[0008] The adjustment assembly includes a guide vane, the sidewall of which is rotatably connected to the inside of the air guide shroud. A connecting block is fixedly connected to the sidewall of the guide vane, a connecting plate is rotatably connected to the sidewall of the connecting block, a rack is fixedly connected to the sidewall of the connecting plate, a fixing block is fixedly connected to the sidewall of the air guide shroud, a gear is rotatably connected inside the fixing block, and a heat insulation cover is fixedly connected to the sidewall of the air guide shroud. A heat-resistant motor is installed inside the heat insulation cover.
[0009] As a further description of the above technical solution:
[0010] The fixing component includes a fixing sleeve, the side wall of which is slidably connected to the inside of the heating plate and the furnace body.
[0011] As a further description of the above technical solution:
[0012] The output end of the heat-resistant motor is fixedly connected inside the gear, and the gear meshes with the rack.
[0013] As a further description of the above technical solution:
[0014] The fixed sleeve has a threaded block inside, and a handle is fixedly connected to one end of the threaded block.
[0015] As a further description of the above technical solution:
[0016] A spring is installed inside the fixed sleeve, and a compression block is slidably connected inside the fixed sleeve.
[0017] As a further description of the above technical solution:
[0018] One end of the spring is fixedly connected to the side wall of the threaded block, and the other end of the spring is fixedly connected to the side wall of the extrusion block.
[0019] As a further description of the above technical solution:
[0020] The fixed sleeve is equipped with ball bearings, and the sidewalls of the ball bearings are slidably connected to the inside of the furnace body.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, a heat-resistant motor drives a gear to rotate, and the rotation of the gear is converted into the linear motion of the rack. The connecting plate swings with the movement of the rack, and the swing of the connecting plate drives the connecting block to move. Ultimately, the guide vane rotates around its rotating connection point inside the air guide shroud, thereby adjusting the tilt angle of the guide vane and changing the direction of the airflow blown by the fan. This solves the problem that some industrial furnaces cannot flexibly adjust the airflow distribution when processing workpieces of different specifications and with different heat treatment process requirements, which easily leads to uneven temperature field inside the furnace and affects the stability of product quality. The above structure improves the practicality of the equipment.
[0023] 2. In this utility model, by rotating the handle, the threaded block will move outward of the fixed sleeve. As the threaded block moves, the spring returns to its original deformation, causing the extrusion block to slide inward of the fixed sleeve, thereby reducing the pressure between the ball and the inner wall of the furnace. At this time, the fixed sleeve can be pulled out from the furnace body and the heating plate, thus realizing the quick disassembly of the heating plate, which greatly facilitates the maintenance and repair of the equipment and improves the maintenance efficiency of the equipment. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of an industrial furnace with an air guiding structure proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the internal structure of an industrial furnace with an air guiding structure proposed in this utility model.
[0026] Figure 3 This is a schematic diagram of the structure of a blower for an industrial furnace with an air guiding structure proposed in this utility model;
[0027] Figure 4 This is a schematic diagram of the structure of an air guide hood for an industrial furnace with an air guiding structure proposed in this utility model;
[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle;
[0029] Figure 6 This is a schematic diagram of the fixed component of an industrial furnace with an air guiding structure proposed in this utility model.
[0030] Legend:
[0031] 1. Furnace body; 2. Furnace door; 3. Heating plate; 4. Fan; 5. Air guide hood; 6. Guide vane; 7. Connecting block; 8. Connecting plate; 9. Heat insulation cover; 10. Heat-resistant motor; 11. Fixing block; 12. Gear; 13. Rack; 14. Fixing sleeve; 15. Threaded block; 16. Handle; 17. Spring; 18. Extrusion block; 19. Ball bearing. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1-5 This utility model provides an embodiment of an industrial furnace with an air guiding structure, including a furnace body 1, a furnace door 2 on the side wall of the furnace body 1, a heating plate 3 inside the furnace body 1, the heating plate 3 generating heat by converting electrical energy into thermal energy to heat the internal space of the furnace body 1, providing the required temperature conditions for the aging treatment of workpieces, a fan 4 fixedly connected to the top of the furnace body 1, the fan 4 generating airflow, the fan blades rotating to drive the airflow, transporting the heat generated by the heating plate 3 to various areas inside the furnace body 1, promoting air circulation inside the furnace, and making the temperature distribution more uniform, an air guide hood 5 fixedly connected to the lower surface of the fan 4, the air guide hood 5 converging and guiding the airflow blown by the fan 4 to prevent the airflow from scattering, an adjustment component inside the air guide hood 5, the adjustment component controlling the airflow direction, flexibly adjusting the airflow direction according to different process requirements, ensuring a uniform temperature field inside the furnace, a fixing component inside the heating plate 3, the fixing component installing the heating plate 3, preventing the heating plate 3 from shifting or loosening due to vibration, thermal expansion and contraction, etc. during operation;
[0034] The regulating assembly includes a guide vane 6, which changes the airflow direction. By rotating at its own angle, the guide vane 6 directs the airflow passing through the air guide shroud 5, allowing the airflow to flow along a predetermined path. The sidewall of the guide vane 6 is rotatably connected to the inside of the air guide shroud 5. A connecting block 7 is fixedly connected to the sidewall of the guide vane 6, and a connecting plate 8 is rotatably connected to the sidewall of the connecting block 7. This rotatable connection with the connecting block 7 allows the oscillation of the connecting plate 8 to be converted into the rotational motion of the guide vane 6. A rack 13 is fixedly connected to the sidewall of the connecting plate 8, and a fixing block 11 is fixedly connected to the sidewall of the air guide shroud 5. A gear 12 is rotatably connected inside the fixing block 11, and transmission is achieved through meshing with the rack 13. The rotational motion is converted into the linear motion of the rack 13, thereby adjusting the angle of the guide vane 6. The side wall of the air guide shroud 5 is fixedly connected to the heat insulation shroud 9. The function of the heat insulation shroud 9 is to isolate the high temperature inside the furnace and prevent the high temperature from being conducted to the heat-resistant motor 10 inside, thus protecting the heat-resistant motor 10 from the influence of high temperature. The heat-resistant motor 10 is installed inside the heat insulation shroud 9. The heat-resistant motor 10 is a YGMP series heat treatment furnace motor. Its function is to drive the gear 12 to rotate through the rotation of the output shaft, providing a power source for the entire adjustment assembly. This is common knowledge and will not be elaborated on here. The output end of the heat-resistant motor 10 is fixedly connected inside the gear 12, and the gear 12 meshes with the rack 13.
[0035] Reference Figure 2 and Figure 6 The fixing component includes a fixing sleeve 14, which serves as the basic component for connecting the heating plate 3 to the furnace body 1, playing a role in initial positioning and guiding installation. The fixing sleeve 14 is made of high-strength metal material to ensure structural strength and wear resistance, and can withstand the weight of the heating plate 3 and vibrations during operation. A threaded block 15 is threadedly connected inside the fixing sleeve 14. The threaded block 15 is used to convert rotational motion into linear motion. Through the threaded engagement with the fixing sleeve 14, the threaded block 15 can move back and forth inside the fixing sleeve 14 when rotated. A handle is fixedly connected to one end of the threaded block 15. 16. The handle 16 is used to facilitate the operator to apply force. By holding the handle 16 and rotating it, the threaded block 15 can be easily rotated, improving the convenience of operation. The fixed sleeve 14 is equipped with a spring 17, which is used to provide elastic buffer and restoring force. The fixed sleeve 14 is slidably connected with a pressing block 18. One end of the spring 17 is fixedly connected to the side wall of the threaded block 15, and the other end of the spring 17 is fixedly connected to the side wall of the pressing block 18. The fixed sleeve 14 is equipped with a ball bearing 19, which is slidably connected to the side wall of the furnace body 1. The ball bearing 19 is used to be fixed inside the furnace body 1 by the pressing of the pressing block 18.
[0036] Working Principle: When the industrial furnace starts operating, the heating plate 3 first heats the interior of the furnace body 1. Simultaneously, the blower 4 starts and generates airflow to ensure uniform temperature distribution within the furnace. During the operation of the blower 4, the heat-resistant motor 10 drives the gear 12 to rotate. Since the gear 12 meshes with the rack 13, the rotational motion of the gear 12 is converted into the linear motion of the rack 13. The connecting plate 8 swings along with the movement of the rack 13. The connecting plate 8 is rotatably connected to the connecting block 7, so the swinging motion of the connecting plate 8 drives the connecting block 7 to move. The movement of the connecting block 7 ultimately causes the guide vane 6 to rotate around its rotational connection point within the air guide shroud 5. By precisely controlling the forward and reverse rotation and the number of rotations of the heat-resistant motor 10, the tilt angle of the guide vane 6 can be adjusted, thereby changing the airflow blown out by the blower 4. The direction optimizes the airflow distribution inside the furnace, ensuring uniform temperature. The heat insulation cover 9 effectively isolates the high-temperature environment inside the furnace body 1, preventing damage to the heat-resistant motor 10 inside the heat insulation cover 9, thereby extending the service life of the motor. When the heating plate 3 needs to be disassembled for maintenance, the handle 16 is rotated in the opposite direction. At this time, the threaded block 15 will move outward from the fixed sleeve 14. As the threaded block 15 moves, the spring 17 gradually recovers its deformation, and its elasticity will drive the pressing block 18 to slide inward from the fixed sleeve 14, reducing the pressure between the ball 19 and the inner wall of the furnace body 1. When the pressure is reduced to a certain extent, the fixed sleeve 14 can be easily pulled out from the furnace body 1 and the heating plate 3, thereby realizing the quick disassembly of the heating plate 3, which greatly facilitates the maintenance and repair of the equipment and improves the maintenance efficiency of the equipment.
[0037] 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. An industrial furnace with an air guiding structure, comprising a furnace body (1), characterized in that: The furnace body (1) has a furnace door (2) on its side wall, a heating plate (3) inside the furnace body (1), a fan (4) fixedly connected to the top of the furnace body (1), a wind guide hood (5) fixedly connected to the lower surface of the fan (4), an adjustment component inside the wind guide hood (5), and a fixing component inside the heating plate (3). The adjustment assembly includes a guide vane (6), the side wall of which is rotatably connected to the inside of the air guide shroud (5), a connecting block (7) is fixedly connected to the side wall of the guide vane (6), a connecting plate (8) is rotatably connected to the side wall of the connecting block (7), a rack (13) is fixedly connected to the side wall of the connecting plate (8), a fixing block (11) is fixedly connected to the side wall of the air guide shroud (5), a gear (12) is rotatably connected inside the fixing block (11), a heat insulation cover (9) is fixedly connected to the side wall of the air guide shroud (5), and a heat-resistant motor (10) is installed inside the heat insulation cover (9).
2. An industrial furnace with an air guiding structure according to claim 1, characterized in that: The fixing component includes a fixing sleeve (14), the side wall of which is slidably connected to the inside of the heating plate (3) and the side wall of which is slidably connected to the inside of the furnace body (1).
3. An industrial furnace with an air guiding structure according to claim 1, characterized in that: The output end of the heat-resistant motor (10) is fixedly connected inside the gear (12), and the gear (12) meshes with the rack (13).
4. An industrial furnace with an air guiding structure according to claim 2, characterized in that: The fixed sleeve (14) has a threaded block (15) inside, and a handle (16) is fixedly connected to one end of the threaded block (15).
5. An industrial furnace with an air guiding structure according to claim 4, characterized in that: A spring (17) is provided inside the fixed sleeve (14), and a pressing block (18) is slidably connected inside the fixed sleeve (14).
6. An industrial furnace with an air guiding structure according to claim 5, characterized in that: One end of the spring (17) is fixedly connected to the side wall of the threaded block (15), and the other end of the spring (17) is fixedly connected to the side wall of the extrusion block (18).
7. An industrial furnace with an air guiding structure according to claim 6, characterized in that: The fixed sleeve (14) is provided with a ball bearing (19) inside, and the side wall of the ball bearing (19) is slidably connected to the inside of the furnace body (1).