An apparatus for normalizing a forged product using residual heat
By evenly distributing heating plates and fans on the inner wall of the normalizing furnace, and combining them with a planetary gear transmission system, the problems of uneven heating and cooling in traditional forging normalizing equipment have been solved, enabling the production of high-precision, high-performance forging products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YOUSHI MASCH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional forging normalizing equipment suffers from uneven heating and cooling, resulting in unstable product performance and making it difficult to meet the high precision and high performance requirements of modern industry.
The furnace employs heating plates and fans evenly distributed on its inner wall, combined with a planetary gear transmission system to drive the forging product to rotate, thus achieving uniformity in the heating and cooling process. The residual heat of the forging product is used for normalizing treatment, eliminating the need for secondary heating.
It enables comprehensive and precise heating and uniform cooling of forged products, reducing energy consumption, shortening production cycles, and improving product quality stability.
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Figure CN224313584U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forging product processing technology, specifically to a device for normalizing forging products using residual heat. Background Technology
[0002] In the field of metal processing, normalizing is a heat treatment process that involves heating a metal material to above its critical temperature, holding it at that temperature for an appropriate time, and then rapidly cooling it in air. For forged products, normalizing can refine the grain size, eliminate internal stress, and improve the microstructure, thereby significantly enhancing the material's overall mechanical properties, including strength, toughness, and hardness. This allows forged products to better meet the requirements of subsequent processing and practical use, making them widely applicable in numerous industries such as machinery manufacturing, aerospace, and automotive, and a key step in ensuring product quality and reliability.
[0003] Traditional normalizing equipment and processes for forging products have many drawbacks. During the heating and cooling process, traditional equipment easily leads to uneven heating of the forging products, resulting in localized overheating or undercooling, which affects the final heat treatment effect, causing unstable product performance and a high scrap rate. Traditional equipment also lacks effective product rotation and temperature homogenization measures, further exacerbating the instability of normalizing quality and failing to meet the high precision and high performance requirements of modern industry forging products. Therefore, we propose a device for normalizing forging products using residual heat. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a device for normalizing forged products using residual heat, thus solving the aforementioned problems.
[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a device for normalizing forged products using residual heat, comprising a normalizing furnace, a fixed base fixedly connected to the bottom of the normalizing furnace, a support frame fixedly connected to the bottom of the inner wall of the fixed base, a motor fixedly connected to the bottom of the support frame, a rotating shaft at the top of the motor extending to the top of the support frame, a central gear fixedly connected to the rotating shaft at the top of the motor, and three planetary gears equidistantly distributed in a ring on the top of the support frame near the motor end, the planetary gears being meshed with the central gear, and an internal gear ring meshing with the outer wall of one end of the planetary gears, the internal gear ring extending to the bottom of the inner wall of the normalizing furnace.
[0006] Preferably, a circular groove is provided at the bottom of the inner wall of the furnace near the inner gear ring, and six rollers are movably connected to the outer wall of the inner gear ring in a ring-shaped and equidistant arrangement. The rollers are in sliding fit with the bottom of the inner wall of the circular groove.
[0007] Preferably, a turntable is fixedly connected to the top of the internal gear ring.
[0008] Preferably, eight heating plates are fixedly connected to both sides of the inner wall of the furnace and are distributed horizontally at equal intervals, and eight second heating plates are fixedly connected to the top of the inner wall of the furnace and are distributed horizontally at equal intervals.
[0009] Preferably, slide rails are fixedly connected to both sides of the top of the furnace, and a telescopic rod is fixedly connected to one end of the top of the furnace near the slide rails. A heat insulation baffle is fixedly connected to the output end of the telescopic rod, and the outer walls of the heat insulation baffles on both sides are slidably connected to the inner walls of the slide rails.
[0010] Preferably, a fan is fixedly connected to one end of the top of the slide rail, the output direction of the fan extends to the top of the inner wall of the furnace, and the two fans have the same air intake direction.
[0011] Preferably, a furnace door is movably connected to one end of the outer wall of the furnace, a handle is fixedly connected to one end of the outer wall of the furnace door, a locking head is movably connected to one side of the outer wall of the furnace door, a locking block is provided on the outer wall of the furnace near the locking head, the locking block and the locking head are engaged, and four support columns distributed in a rectangular shape are fixedly connected to the bottom of the furnace.
[0012] Compared with the prior art, this utility model provides a device for normalizing forged products using residual heat, which has the following beneficial effects:
[0013] 1. This equipment, which uses residual heat for normalizing, suffers from poor temperature control precision during heating and cooling compared to traditional equipment. This leads to uneven heating of the forged product, resulting in unstable performance and a high scrap rate. This device, through heating plates evenly distributed on both sides and the top of the normalizing furnace 1, and a second heating plate, can heat the forged product comprehensively and precisely, compensating for any potential temperature deficiencies caused by residual heat. Simultaneously, the motor drives the forged product on the turntable to rotate continuously via a central gear, planetary gears, and an internal gear ring, ensuring uniform heating of all parts of the product. During the cooling process, a fan accelerates airflow to guarantee uniform cooling.
[0014] 2. The equipment used for normalizing forged products with residual heat lacks effective measures for product rotation and temperature uniformity compared to traditional normalizing equipment, making it difficult to meet the high precision and high performance requirements of modern industry for forged products. This device uses a planetary gear transmission system to drive the rotation of the forging product, and in conjunction with the coordinated work of the heating plate and the fan, it achieves uniformity and stability in the heating and cooling process. Whether it is a small precision forging or a large heavy forging product, a consistent normalizing effect can be obtained in this device.
[0015] 3. This equipment uses residual heat for normalizing of forged products, eliminating the need for secondary heating and significantly reducing energy costs. It also eliminates the waiting time for product transfer and secondary heating, greatly shortening the production cycle. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0018] Figure 3 This is a cross-sectional view of the present invention;
[0019] Figure 4 This is a top view of the present invention.
[0020] In the diagram: 1. Furnace; 2. Fixed base; 3. Support frame; 4. Motor; 5. Central gear; 6. Planetary gear; 7. Internal gear ring; 8. Circular groove; 9. Roller; 10. Turntable; 11. Heating plate; 12. Second heating plate; 13. Slide rail; 14. Telescopic rod; 15. Heat insulation baffle; 16. Fan; 17. Furnace door; 18. Handle; 19. Locking head; 20. Locking block; 21. Support column. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 A device for normalizing forged products using residual heat includes a normalizing furnace 1. A fixed base 2 is fixedly connected to the bottom of the normalizing furnace 1. A support frame 3 is fixedly connected to the bottom of the inner wall of the fixed base 2. A motor 4 is fixedly connected to the bottom of the support frame 3. The top rotating shaft of the motor 4 extends to the top of the support frame 3. A central gear 5 is fixedly connected to the top rotating shaft of the motor 4. Three planetary gears 6 are movably connected to the top of the support frame 3 near the end of the motor 4, arranged in a ring at equal intervals. The planetary gears 6 are meshed with the central gear 5. An internal gear ring 7 is meshed with the outer wall of one end of the planetary gears 6. The internal gear ring 7 extends to the bottom of the inner wall of the normalizing furnace 1. The motor 4 drives the internal gear ring 7 to rotate through the central gear 5 and the planetary gears 6, providing power for the rotation of the forged product in the normalizing furnace 1, so that the forged product can be heated evenly during the heating process, improving the normalizing effect.
[0023] Furthermore, a circular groove 8 is provided at the bottom of the inner wall of the normalizing furnace 1 near the inner gear ring 7. Six rollers 9 are movably connected to the outer wall of the inner gear ring 7 in a ring shape and evenly distributed. The rollers 9 and the bottom of the inner wall of the circular groove 8 are in sliding fit. The sliding fit between the rollers 9 and the circular groove 8 effectively reduces the friction when the inner gear ring 7 rotates, while providing support and guidance for the inner gear ring 7, ensuring the smoothness and reliability of the rotation of the inner gear ring 7, and thus ensuring the stability of the rotation process of the forging product.
[0024] Furthermore, a turntable 10 is fixedly connected to the top of the internal gear ring 7. The turntable 10 is used to support the forging product. When it rotates with the internal gear ring 7, it drives the forging product to rotate synchronously, ensuring that the forging product is heated evenly in the normalizing furnace 1 and improving the quality of normalizing treatment.
[0025] Furthermore, eight horizontally equidistant heating plates 11 are fixedly connected to both sides of the inner wall of the normalizing furnace 1, and eight horizontally equidistant second heating plates 12 are fixedly connected to the top of the inner wall of the normalizing furnace 1. The heating plates 11 and the second heating plates 12 heat the forging product from the side wall and top of the normalizing furnace 1, forming an all-round heating environment, which can quickly and uniformly increase the temperature of the forging product, meet the temperature requirements of normalizing treatment, and ensure the normalizing treatment effect.
[0026] Furthermore, slide rails 13 are fixedly connected to both sides of the top of the normalizing furnace 1. A telescopic rod 14 is fixedly connected to one end of the top of the normalizing furnace 1 near the slide rails 13. A heat insulation baffle 15 is fixedly connected to the output end of the telescopic rod 14. The outer walls of the heat insulation baffle 15 on both sides are slidably connected to the inner walls of the slide rails 13. The telescopic rod 14 can control the heat insulation baffle 15 to slide on the slide rails 13, realizing the opening and closing of the heat insulation baffle 15. This facilitates the staff to observe and operate the inside of the normalizing furnace 1. At the same time, the heat insulation baffle 15 can effectively prevent heat loss from the furnace, maintain the temperature stability inside the normalizing furnace 1, and ensure the normal operation of the normalizing process.
[0027] Furthermore, a fan 16 is fixedly connected to one end of the top of the slide rail 13. The output direction of the fan 16 extends to the top of the inner wall of the normalizing furnace 1. The two fans 16 have the same air intake direction. The fans 16 blow air into the normalizing furnace 1, which can accelerate the air flow in the furnace. After the forging product is heated, the temperature of the forging product is quickly reduced to achieve the cooling process. This meets the requirements for cooling speed and uniformity in normalizing treatment, and ensures that the forging product achieves the expected normalized structure and properties.
[0028] Furthermore, a furnace door 17 is movably connected to one end of the outer wall of the normalizing furnace 1. A handle 18 is fixedly connected to one end of the outer wall of the furnace door 17. A locking head 19 is movably connected to one side of the outer wall of the furnace door 17. A locking block 20 is provided on the outer wall of the normalizing furnace 1 near the locking head 19. The locking block 20 and the locking head 19 are engaged. Four support columns 21 distributed in a rectangular shape at equal intervals are fixedly connected to the bottom of the normalizing furnace 1. The furnace door 17 can be easily opened and closed through the handle 18. The engagement between the locking head 19 and the locking block 20 ensures the sealing of the furnace door 17 when it is closed, preventing heat leakage. At the same time, the support columns 21 provide stable support for the entire normalizing furnace 1, ensuring the stability of the equipment during operation.
[0029] Instructions for use
[0030] Structural description: 1. Normalizing furnace 1: As the main body of the equipment, it is used to accommodate forging products and provide normalizing treatment space. The fixed base 2 is connected to its bottom. The heating plate 11 and the second heating plate 12 are distributed on its inner wall. The slide rail 13 and the furnace door 17 are respectively set on its top and one end outer wall.
[0031] 2. Fixing base 2: Supports and fixes the normalizing furnace 1, and its inner wall bottom is connected to the support frame 3, located at the bottom of the normalizing furnace 1;
[0032] 3. Support frame 3: Supports motor 4, with its bottom connected to the bottom of the inner wall of the fixed base 2, and its top end near the motor 4 is movably connected to planetary gear 6;
[0033] 4. Motor 4: Provides power to the equipment, drives the central gear 5 to rotate, and is fixed at the bottom to the support frame 3. The top rotating shaft extends to the top of the support frame 3.
[0034] 5. Central gear 5: Connected to the top rotating shaft of motor 4, it transmits power through meshing with planetary gear 6, and is located at the top of support frame 3;
[0035] 6. Planetary gear 6: meshes with the central gear 5 and the internal gear ring 7, transmitting power to the internal gear ring 7. The three are distributed in a ring at equal intervals on the top of the support frame 3 near the motor 4.
[0036] 7. Internal gear ring 7: meshes with planetary gear 6, drives turntable 10 to rotate, extends to the bottom of the inner wall of the furnace 1, the outer wall is movably connected to roller 9, and the top is connected to turntable 10.
[0037] 8. Circular groove 8: It is opened at the bottom of the inner wall of the furnace 1 near the inner gear ring 7, to provide a sliding track for the roller 9 and to assist the inner gear ring 7 to rotate stably;
[0038] 9. Roller 9: It slides with the bottom of the inner wall of the annular groove 8 to reduce the rotational friction of the internal gear ring 7. Six rollers are distributed in a ring at equal intervals on the outer wall of the internal gear ring 7.
[0039] 10. Turntable 10: It supports the forged product and drives its rotation, and is fixed on the top of the internal gear ring 7;
[0040] 11. Heating plates 11: used to heat the forged products, eight of which are distributed horizontally at equal intervals on both sides of the inner wall of the normalizing furnace 1;
[0041] 12. Second heating plate 12: Heating the forged product, eight of which are distributed horizontally at equal intervals on the top of the inner wall of the normalizing furnace 1;
[0042] 13. Slide rail 13: Provides a sliding rail for the heat insulation baffle 15, fixed on both sides of the top of the furnace 1, with one end of the top connected to the fan 16;
[0043] 14. Telescopic rod 14: controls the sliding of the heat insulation baffle 15, fixed on the top of the furnace 1 near the slide rail 13, and the output end is connected to the heat insulation baffle 15;
[0044] 15. Heat insulation baffle 15: blocks heat loss, with its outer walls on both sides slidingly connected to the inner walls of the slide rail 13, and its movement on the slide rail 13 controlled by the telescopic rod 14.
[0045] 16. Fan 16: Accelerates airflow inside the furnace to cool the forging products. It is fixed at one end of the top of the slide rail 13 and extends in the output direction to the top of the inner wall of the normalizing furnace 1.
[0046] 17. Furnace door 17: Used to open and close the normalizing furnace 1, it is movably connected to the outer wall of one end of the normalizing furnace 1, and is equipped with a handle 18 and a locking head 19;
[0047] 18. Handle 18: Facilitates opening and closing of the furnace door 17, and is fixed to the outer wall of one end of the furnace door 17;
[0048] 19. Locking head 19: It engages with locking block 20 to ensure the sealing of furnace door 17 when closed, and is movably connected to the outer wall of one side of furnace door 17;
[0049] 20. Locking block 20: It engages with locking head 19 and is located on the outer wall of the furnace 1 near locking head 19;
[0050] 21. Support column 21: Provides stable support for the main furnace 1. Four columns are fixed at the bottom of the main furnace 1 in a rectangular and equidistant arrangement.
[0051] Working principle: First, the motor 4 inside the fixed base 2 at the bottom of the normalizing furnace 1 starts. The rotating shaft at the top of the motor 4 extends to the top of the support frame 3, and the central gear 5 fixedly connected to the rotating shaft at the top of the motor 4 rotates accordingly. When the central gear 5 rotates, the three planetary gears 6 that are meshed with it and are distributed in a ring at equal intervals begin to rotate. At the same time, the internal gear ring 7 that is meshed with the outer wall of one end of the planetary gear 6 also begins to rotate. The turntable 10 fixedly connected to the top of the internal gear ring 7 rotates accordingly, and the forging product placed on the turntable 10 also rotates accordingly. The six equidistant, annular rollers 9 on the outer wall of the internal gear ring 7 slide in contact with the bottom of the annular groove 8 on the inner wall of the normalizing furnace 1, ensuring the stability of the rotation of the internal gear ring 7. This process, through the linkage of the motor 4, the central gear 5, the planetary gear 6, the internal gear ring 7, and the rollers 9, achieves the effect of rotating the forging product inside the normalizing furnace 1, making the forging product more evenly heated during the heating process. The eight horizontally equidistant heating plates 11 fixedly connected to both sides of the inner wall of the normalizing furnace 1 and the eight horizontally equidistant second heating plates 12 fixedly connected to the top of the inner wall of the normalizing furnace 1 start working to heat the forging product inside the normalizing furnace 1. While the forging product rotates with the turntable 10, the heating plate 11 and the second heating plate 12 continuously heat it. This process, through the linkage between the heating plate 11, the second heating plate 12, and the rotation of the forging product, achieves a comprehensive and uniform heating effect on the forging product, which helps improve the quality of normalizing treatment. The heat insulation baffles 15, which are fixedly connected to the output end of the telescopic rod 14 on the slide rails 13 on both sides of the top of the normalizing furnace 1, can be moved. When it is necessary to observe or operate the forging product, the telescopic rod 14 operates, driving the heat insulation baffles 15 to slide on the slide rails 13, opening a part of the top area of the normalizing furnace 1. The heat insulation baffles 15 can effectively block heat loss and maintain the temperature inside the normalizing furnace 1. This process, through the linkage of the telescopic rod 14, the heat insulation baffles 15, and the slide rails 13, achieves the effect of both convenient operation and maintaining the furnace temperature. The blower 16 at one end of the top of the normalizing furnace 1 starts to work, and the output direction of the blower 16 extends to the top of the inner wall of the normalizing furnace 1, and the air intake direction of the two blowers 16 is the same. After the forging product is heated, the blower 16 blows air into the normalizing furnace 1 to accelerate the cooling process. While the forging product rotates, the blower 16 continues to operate. This process, through the linkage between the blower 16 and the rotation of the forging product, achieves uniform cooling of the forging product, which helps improve the normalizing effect. The furnace door 17, movably connected to one end of the outer wall of the normalizing furnace 1, can be opened and closed via a handle 18 fixedly connected to one end of the outer wall. When the furnace door 17 is closed, a locking head 19 movably connected to one side of the outer wall of the furnace door 17 engages with a locking block 20 on the outer wall of the normalizing furnace 1 near the locking head 19, ensuring a tight closure of the furnace door 17 and preventing heat loss. This process, through the linkage of the furnace door 17, handle 18, locking head 19, and locking block 20, achieves the effect of conveniently opening and closing the furnace door while maintaining the furnace temperature.
[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for normalizing forged products using residual heat, comprising a normalizing furnace (1), characterized in that: The bottom of the furnace (1) is fixedly connected to a fixed base (2), and the bottom of the inner wall of the fixed base (2) is fixedly connected to a support frame (3). The bottom of the support frame (3) is fixedly connected to a motor (4). The top rotating shaft of the motor (4) extends to the top of the support frame (3). The top rotating shaft of the motor (4) is fixedly connected to a central gear (5). The top of the support frame (3) near the end of the motor (4) is movably connected to three planetary gears (6) that are distributed in a ring at equal intervals. The planetary gears (6) are meshed with the central gears (5). The outer wall of one end of the planetary gears (6) is meshed with an internal gear ring (7). The internal gear ring (7) extends to the bottom of the inner wall of the furnace (1).
2. The equipment for normalizing forged products using residual heat according to claim 1, characterized in that: The bottom of the inner wall of the furnace (1) is provided with a circular groove (8) near the inner toothed ring (7). The outer wall of the inner toothed ring (7) is movably connected with six rollers (9) distributed in a ring at equal intervals. The rollers (9) are in sliding fit with the bottom of the inner wall of the circular groove (8).
3. The equipment for normalizing forged products using residual heat according to claim 1, characterized in that: The top of the internal gear ring (7) is fixedly connected to a turntable (10).
4. The equipment for normalizing forged products using residual heat according to claim 1, characterized in that: The inner walls of the furnace (1) are fixedly connected to eight heating plates (11) that are equidistantly distributed in the horizontal direction, and the top of the inner walls of the furnace (1) is fixedly connected to eight second heating plates (12) that are equidistantly distributed in the horizontal direction.
5. The equipment for normalizing forged products using residual heat according to claim 1, characterized in that: The top of the furnace (1) is fixedly connected to slide rails (13) on both sides. The top of the furnace (1) is fixedly connected to a telescopic rod (14) near the slide rail (13). The output end of the telescopic rod (14) is fixedly connected to a heat insulation baffle (15). The outer walls of the heat insulation baffle (15) on both sides are slidably connected to the inner walls of the slide rail (13).
6. The equipment for normalizing forged products using residual heat according to claim 5, characterized in that: A fan (16) is fixedly connected to one end of the top of the slide rail (13). The output direction of the fan (16) extends to the top of the inner wall of the furnace (1). The two fans (16) have the same air intake direction.
7. The equipment for normalizing forged products using residual heat according to claim 1, characterized in that: A furnace door (17) is movably connected to one end of the outer wall of the furnace (1). A handle (18) is fixedly connected to one end of the outer wall of the furnace door (17). A locking head (19) is movably connected to one side of the outer wall of the furnace door (17). A locking block (20) is provided on the outer wall of the furnace (1) near the locking head (19). The locking block (20) and the locking head (19) are engaged. Four support columns (21) are fixedly connected to the bottom of the furnace (1) in a rectangular and equidistant arrangement.