Energy-saving tempering furnace

Abstract

The utility model relates to the technical field of tempering, especially for a kind of energy-saving tempering furnace, including furnace body, the side end of furnace body is fixedly installed with sealing assembly by welding, the inside fixed mounting of sealing assembly has pressure relief component, the furnace body includes shell, the outer surface of shell is fixedly installed with support frame by screw nut, the shell and support frame constitute protective support structure, the inner wall bottom of shell is fixedly installed with first heating component by welding, the top of shell is equipped with several air inlets. The device can heat the processing components through the first heating component fixedly installed on the inner wall bottom of the shell and the second heating component fixedly installed on the inner wall top of the shell, and at the same time, the fan is rotated by the motor to enter the air from the air inlet into the tempering furnace, thereby forming hot air, which is then discharged through the vent opening on the rear outer surface of the shell, forming a heat cycle.

Description

Technical Field

[0001] This utility model relates to the field of tempering technology, specifically to an energy-saving tempering furnace. Background Technology

[0002] Tempering is a key process in metal heat treatment, typically performed after quenching. It involves heating the workpiece to a specific temperature, holding it at that temperature, and then cooling it to eliminate internal stress and adjust mechanical properties such as hardness and toughness. The tempering furnace is the core equipment for this process, precisely controlling temperature and holding time to ensure uniform heating. It is widely used in the treatment of steel parts, improving the stability and service life of components in fields such as machinery manufacturing and the automotive industry.

[0003] Chinese utility model patent CN219886133U discloses an energy-saving tempering furnace, comprising: a cover, a furnace body assembly, a first gear, a second gear, a connecting plate, a first rotating shaft, a first motor, a mounting base, a second motor, and a second rotating shaft. The cover is connected to the upper end of the furnace body assembly. The first rotating shaft is rotatably connected to the cover. The upper end of the first rotating shaft protrudes above the cover and is coaxially connected to the first gear. The lower end of the first rotating shaft is located inside the furnace body assembly and is coaxially connected to the connecting plate. A workpiece support is connected to the bottom end of the connecting plate. The first motor is connected to the cover and is connected to a second gear that meshes with the first gear. A first through hole is provided along the axial direction on the first rotating shaft. The mounting base is connected to... The second motor is connected to the mounting base, and the output shaft of the second motor is connected to the second rotating shaft. The second rotating shaft passes through the first through hole, and the lower end of the second rotating shaft is connected to the fan. However, in this energy-saving tempering furnace, the heating components are concentrated at the bottom of the furnace body, and the heat is mainly transferred through the natural convection of hot air. This leads to an unbalanced temperature distribution inside the furnace. The temperature in the lower area is higher due to direct heating, while the heat transfer in the middle and upper space is delayed, resulting in a significant temperature difference. The workpiece is heated unevenly in different positions. The lower workpiece is prone to over-tempering, while the upper workpiece may be under-tempered. Ultimately, this can easily lead to fluctuations in the hardness, toughness, and other performance parameters of batch products, affecting the stability of processing quality and increasing subsequent quality inspection and rework costs. Utility Model Content

[0004] The purpose of this invention is to provide an energy-saving tempering furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving tempering furnace, comprising a furnace body, wherein a sealing assembly is fixedly installed on the side end of the furnace body by welding, and a pressure relief assembly is fixedly installed inside the sealing assembly;

[0006] The furnace body includes an outer shell, on the outer surface of which a support frame is fixedly mounted by screws and nuts. The outer shell and the support frame form a protective support structure. A first heating component is fixedly mounted on the bottom of the inner wall of the outer shell by welding. Several air inlets are provided on the top of the outer shell. A mounting base is fixedly mounted on the top of the outer shell by welding. A motor is fixedly mounted on the top of the mounting base by screws and nuts. A fan is rotatably mounted on the bottom of the motor. A second heating component is fixedly mounted on the top of the inner wall of the outer shell by screws. A placement rack is slidably mounted on the inner wall of the outer shell through a sliding groove.

[0007] The sealing assembly includes a frame fixedly installed at one end of the housing by welding, a sealing bracket fixedly installed at one end of the frame, a sealing door rotatably installed at one end of the sealing bracket by a hinge, and a handle fixedly installed on the outer surface of the sealing door by screws.

[0008] The pressure relief assembly includes two threaded knobs threadedly mounted on the top of the frame, a spring slidably mounted on the bottom of the threaded knobs, a pressure relief ball slidably mounted on the bottom of the spring, a cooling chamber inside the frame, two openings on the top of the inner wall of the cooling chamber, a pressure relief port on each side of the frame, and a water inlet and a water outlet at the side end of the frame.

[0009] The beneficial effects of this utility model are as follows: The tempering furnace achieves the heating and processing of components by means of a first heating component fixedly installed at the bottom of the inner wall of the outer shell and a second heating component fixedly installed at the top of the inner wall of the outer shell. At the same time, the fan driven by the motor rotates to draw air into the tempering furnace through the air inlet, thereby forming hot air, which is then discharged through the ventilation opening on the outer surface of the rear end of the outer shell, forming a heat cycle.

[0010] To achieve hot air heating processing components:

[0011] Further configuration: the motor and fan constitute a rotating structure.

[0012] By adopting the above technical solution, the motor will drive the fan to rotate, which, together with the air inlet on the top of the casing, forms the processing components inside the hot air heating furnace.

[0013] To achieve uniform heating and processing of components:

[0014] The configuration is further defined as follows: the first heating component and the second heating component, together with the motor and the fan, form a uniform heating structure.

[0015] By adopting the above technical solution, the first heating component and the second heating component will heat up simultaneously, and the resulting airflow will pass through the second heating component to form hot air, which will then be discharged through the ventilation hole at the rear end of the outer casing, forming a heat cycle.

[0016] To maintain the furnace temperature:

[0017] Further configuration: the frame and the sealing door form a sealing structure through a sealing bracket.

[0018] By adopting the above technical solutions, the frame and sealed door can ensure the temperature inside the furnace and prevent uneven temperature distribution.

[0019] To prevent excessive pressure within the cooling chamber from affecting the safety of the furnace components:

[0020] The design is further configured such that the threaded knob and the pressure relief port, together with the spring and the pressure relief ball, form a pressure relief structure through the opening.

[0021] By adopting the above technical solution, the threaded knob, in conjunction with the spring and pressure relief ball, can prevent water intake difficulties caused by excessive pressure.

[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the furnace body of this utility model;

[0024] Figure 2 This is a schematic diagram of the outer shell of this utility model;

[0025] Figure 3 This is a schematic diagram of the sealing assembly of this utility model;

[0026] Figure 4 This is a schematic diagram of the pressure relief component of this utility model.

[0027] In the diagram: 1. Furnace body; 11. Outer shell; 12. Support frame; 13. First heating component; 14. Air inlet; 15. Mounting base; 16. Motor; 17. Fan; 18. Second heating component; 19. Placement rack; 2. Sealing component; 21. Frame; 22. Sealing bracket; 23. Sealing door; 24. Handle; 3. Pressure relief component; 31. Threaded knob; 32. Spring; 33. Pressure relief ball; 34. Cooling chamber; 35. Opening; 36. Pressure relief port; 37. Water inlet; 38. Water outlet. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0029] Please see Figures 1 to 4 An energy-saving tempering furnace includes a furnace body 1, a sealing component 2 fixedly installed on the side end of the furnace body 1 by welding, and a pressure relief component 3 fixedly installed inside the sealing component 2.

[0030] The furnace body 1 includes an outer shell 11. A support frame 12 is fixedly installed on the outer surface of the outer shell 11 by screws and nuts. The outer shell 11 and the support frame 12 constitute a protective support structure. A first heating component 13 is fixedly installed on the bottom of the inner wall of the outer shell 11 by welding. Several air inlets 14 are opened on the top of the outer shell 11. A mounting base 15 is fixedly installed on the top of the outer shell 11 by welding. A motor 16 is fixedly installed on the top of the mounting base 15 by screws and nuts. A fan 17 is rotatably installed on the bottom of the motor 16. A second heating component 18 is fixedly installed on the top of the inner wall of the outer shell 11 by screws. A placement rack 19 is slidably installed on the inner wall of the outer shell 11 through a sliding groove.

[0031] The sealing assembly 2 includes a frame 21 fixedly installed at one end of the housing 11 by welding. A sealing bracket 22 is fixedly installed at one end of the frame 21. A sealing door 23 is rotatably installed at one end of the sealing bracket 22 by a hinge. A handle 24 is fixedly installed on the outer surface of the sealing door 23 by screws.

[0032] The pressure relief assembly 3 includes a frame 21 with two threaded knobs 31 threadedly mounted on the top, a spring 32 slidably mounted on the bottom of the threaded knobs 31, a pressure relief ball 33 slidably mounted on the bottom of the spring 32, a cooling chamber 34 inside the frame 21, two openings 35 on the top of the inner wall of the cooling chamber 34, a pressure relief port 36 on both sides of the frame 21, and a water inlet 37 and a water outlet 38 on the side end of the frame 21.

[0033] In this embodiment, as Figure 1 As shown, motor 16 and fan 17 form a rotating structure.

[0034] In this embodiment, as Figure 2 As shown, the first heating component 13 and the second heating component 18, together with the motor 16 and the fan 17, form a uniform heating structure.

[0035] In this embodiment, as Figure 3 As shown, the frame 21 and the sealing door 23 form a sealing structure through the sealing bracket 22.

[0036] In this embodiment, as Figure 4 As shown, the threaded knob 31 and the pressure relief port 36, together with the spring 32 and the pressure relief ball 33, form a pressure relief structure through the opening 35.

[0037] The working process of this energy-saving tempering furnace is as follows:

[0038] First, the user needs to place the two placement racks 19 into the furnace through the slide, then place the processing components on the placement racks 19, and then flip the sealing door 23 by the handle 24 to form a sealing structure with the sealing bracket 22 and the frame 21.

[0039] Afterwards, the user needs to activate the first heating component 13 and the second heating component 18 via an external electrical control. The first heating component 13 and the second heating component 18 will continuously heat the temperature inside the tempering furnace until the temperature inside the furnace reaches the processing standard. Then, the user can start the motor 16. The motor 16, which is fixedly installed on the top of the outer casing 11 via the mounting base 15, will drive the fan 17, which is mounted on the bottom of the motor 16, to rotate. The rotating fan 17, together with several air inlets 14 on the top of the outer casing 11, draws air into the tempering furnace to form an airflow. After the airflow passes through the second heating component 18, it forms hot air, which is blown onto the processing component placed above the placement rack 19 to heat the processing component. After passing through the processing component, the hot air will be discharged through the ventilation port at the rear end of the outer casing 11, thereby achieving heat circulation. This ensures that the processing component inside the furnace is heated evenly, reduces the temperature difference inside the tempering furnace, and prevents the processing component from being heated unevenly, which could lead to inconsistent hardness, toughness, and other properties of batch products, affecting the stability of processing quality and increasing subsequent quality inspection and rework costs.

[0040] After processing is completed, the user can open the sealed door 23 through the handle 24 and take out the processing component placed on the rack 19. Then, the user only needs to put the cooling water into the cooling chamber 34 through the inlet 37, and then turn the two threaded knobs 31 that are threaded on the top of the outer casing 11. The loosened threaded knobs 31 will allow the pressure relief ball 33 to move. When the cooling water in the cooling chamber 34 becomes too pressurized due to high temperature evaporation, it will push the pressure relief ball 33, which will push the spring 32 to contract, and cooperate with the pressure relief port 36 to relieve pressure. The cooling water in the cooling chamber 34 can then be discharged through the outlet 38.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] It should be noted that, in this document, 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 process, method, article, or apparatus.

[0043] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An energy-saving tempering furnace, characterized in that: The furnace includes a furnace body (1), and a sealing assembly (2) is fixedly installed on the side of the furnace body (1) by welding. A pressure relief assembly (3) is fixedly installed inside the sealing assembly (2). The furnace body (1) includes an outer shell (11). A support frame (12) is fixedly installed on the outer surface of the outer shell (11) by screws and nuts. The outer shell (11) and the support frame (12) constitute a protective support structure. A first heating component (13) is fixedly installed on the bottom of the inner wall of the outer shell (11) by welding. Several air inlets (14) are opened on the top of the outer shell (11). A mounting base (15) is fixedly installed on the top of the outer shell (11) by welding. A motor (16) is fixedly installed on the top of the mounting base (15) by screws and nuts. A fan (17) is rotatably installed on the bottom of the motor (16). A second heating component (18) is fixedly installed on the top of the inner wall of the outer shell (11) by screws. A placement rack (19) is slidably installed on the inner wall of the outer shell (11) through a sliding groove. The sealing assembly (2) includes a frame (21) fixedly installed at one end of the outer shell (11) by welding, a sealing bracket (22) is fixedly installed at one end of the frame (21), a sealing door (23) is rotatably installed at one end of the sealing bracket (22) by a hinge, and a handle (24) is fixedly installed on the outer surface of the sealing door (23) by screws. The pressure relief assembly (3) includes a frame (21) with two threaded knobs (31) threaded on the top. A spring (32) is slidably installed on the bottom of the threaded knobs (31). A pressure relief ball (33) is slidably installed on the bottom of the spring (32). A cooling chamber (34) is provided inside the frame (21). Two openings (35) are provided on the top of the inner wall of the cooling chamber (34). A pressure relief port (36) is provided on both sides of the frame (21). A water inlet (37) and a water outlet (38) are provided on the side end of the frame (21).

2. The energy-saving tempering furnace as described in claim 1, characterized in that: The motor (16) and fan (17) constitute a rotating structure.

3. The energy-saving tempering furnace as described in claim 1, characterized in that: The first heating component (13) and the second heating component (18), together with the motor (16) and the fan (17), form a uniform heating structure.

4. The energy-saving tempering furnace as described in claim 1, characterized in that: The frame (21) and the sealing door (23) form a sealing structure through the sealing bracket (22).

5. An energy-saving tempering furnace as described in claim 1, characterized in that: The threaded knob (31) and pressure relief port (36), together with spring (32) and pressure relief ball (33), form a pressure relief structure through opening (35).

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