A step-type heat treatment tempering furnace

Abstract

This utility model discloses a walking beam tempering furnace, belonging to the technical field of tempering furnaces. It includes a fixed platform with an outer shell. A heating component is mounted on the inner wall of the fixed platform, and a moving mechanism is threadedly connected to the heating component. A clamping component is mounted on the moving mechanism, and a supporting component is mounted below the clamping component. A fuel tank is mounted above the outer shell, and the fuel tank is connected to the heating component. This design enables multi-faceted and multi-angle heating of the workpiece. Through a rotary multi-directional heating method, the uniformity of the temperature field inside the furnace is significantly improved. This solves problems such as large temperature differences, uneven heating, localized overheating, or insufficient tempering caused by unreasonable power configuration and improper workpiece arrangement in traditional devices. Therefore, it improves the consistency of the heat treatment process and the stability of product quality, and is suitable for precision heat treatment operations in various process scenarios.

Description

Technical Field

[0001] This utility model belongs to the technical field of tempering furnaces, specifically a walking beam heat treatment tempering furnace. Background Technology

[0002] In the batch processing of medium and large workpieces, the traditional walking beam tempering furnace plays an important role. It uses a mechanically driven walking mechanism to push the workpiece to move in sections in the furnace chamber, so that the workpiece can complete the heating and heat preservation process in different areas in sequence.

[0003] For example, utility model patent CN211570712U discloses a walking beam tempering furnace, which includes a throttling valve, a thermometer, a power regulator, a jet nozzle, a spark plug, a gas pipe, an oxygen pipe, a heating wire, and a support plate. The throttling valve is installed on the left end face of the tempering furnace body, and the oxygen pipe and gas pipe are connected to the right end face of the throttling valve. The power regulator is installed on the front end face of the tempering furnace body, and the thermometer is installed on the upper end face of the tempering furnace body. The heating wire and the jet nozzle are installed inside the tempering furnace body, and the spark plug is installed on the right end face of the jet nozzle. The support plate is installed on the lower side inside the tempering furnace body. This design solves the problem of the single heating method and low efficiency of the original tempering furnace.

[0004] However, this structure mostly uses heating elements with a fixed layout. For workpieces with complex shapes and different process requirements, the uneven distribution of heating elements and unreasonable power configuration lead to large differences in the temperature field inside the furnace. The workpiece is heated unevenly, which can easily cause local overheating and insufficient tempering, affecting product consistency. Utility Model Content

[0005] The purpose of this invention is to provide a walking beam heat treatment tempering furnace to solve at least one aspect of the problems and defects mentioned in the background art.

[0006] A walking beam heat treatment tempering furnace is provided, including a fixed platform, an outer shell on the fixed platform, a heating component on the inner wall of the fixed platform, a moving mechanism threadedly connected to the heating component, a clamping component on the moving mechanism, a supporting component below the clamping component, and a fuel tank on the upper part of the outer shell, the fuel tank being connected to the heating component.

[0007] Furthermore, the heating assembly includes a drive motor, which is disposed inside the fixed platform. The output end of the drive motor is fixedly connected to a first threaded shaft, which is rotatably connected inside the fixed platform. A meshing assembly is fixedly connected to the first threaded shaft, and a conduction assembly is rotatably connected to the inner wall of the meshing assembly. A spraying assembly is connected to the conduction assembly, and a moving mechanism is threadedly connected to the first threaded shaft.

[0008] Furthermore, the meshing assembly includes a circular gear, which is fixedly connected to a first threaded shaft. A gear sleeve is meshed with the circular gear, and a transmission assembly is rotatably connected to the gear sleeve. One end of the transmission assembly is connected to a fuel tank, and the end of the transmission assembly away from the fuel tank is connected to an injection assembly.

[0009] Furthermore, the spraying assembly includes a circular sleeve fixed on several transmission pipes, and several sprayers are provided on the inner wall of the circular sleeve. The sprayers are connected to the several transmission pipes, and baffles are provided on the front and rear sides of the circular sleeve.

[0010] Furthermore, the moving mechanism includes a threaded sleeve, which is threadedly connected to a first threaded shaft. A sliding plate is fixedly connected to the threaded sleeve, a support plate is provided on the sliding plate, a clamping assembly is provided on the support plate, and a support assembly is provided below the clamping assembly.

[0011] Furthermore, sliding rods are provided on both sides inside the fixed platform, and a sliding plate is slidably connected between the two sliding rods.

[0012] Furthermore, the clamping assembly includes a second threaded shaft, which is threadedly connected to the inner wall of the support plate, and a first semi-circular plate is fixedly connected to the bottom of the second threaded shaft.

[0013] Furthermore, the support assembly includes a sliding shaft, the bottom of which is slidably connected to the support plate, and a second semicircular plate is fixedly connected to the top of the sliding shaft. A spring is provided between the outer wall of the second semicircular plate and the inner wall of the support plate, and the spring is sleeved on the sliding shaft.

[0014] Furthermore, the liquid supply assembly includes a fuel tank, which is disposed above the outer casing, and a handle is provided on one side of the outer casing.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The moving mechanism can drive the workpiece supported between the clamping and supporting components into and out of the heating assembly, and achieve rotation and circulation heating within the heating assembly, thereby achieving multi-faceted and multi-angle heating of the workpiece. Through the multi-directional heating method of the rotating heating assembly, the uniformity of the temperature field inside the furnace is significantly improved, solving the problems of large temperature difference, uneven heating, local overheating or insufficient tempering caused by unreasonable power configuration and improper workpiece arrangement in traditional devices. This improves the consistency of heat treatment process and the stability of product quality, and is suitable for precision heat treatment operations in various process scenarios. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 A schematic diagram of the overall structure of a walking beam heat treatment tempering furnace provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the fuel tank provided by this utility model.

[0020] Figure 3 A schematic diagram of the structure of the moving mechanism provided by this utility model.

[0021] Figure 4 A schematic diagram of the heating component structure provided by this utility model.

[0022] Figure 5 A schematic diagram of the support plate provided by this utility model.

[0023] In the diagram: 1. Fixed platform; 2. Heating assembly; 201. Drive motor; 202. First threaded shaft; 203. Meshing assembly; 2031. Circular gear; 2032. Gear sleeve; 2033. Conducting pipe; 204. Conducting assembly; 2041. Rotating circular plate; 2042. Hose; 205. Injection assembly; 2051. Circular sleeve; 2052. Injector; 2053. Baffle; 3. Moving mechanism; 301. Threaded sleeve; 302. Sliding plate; 303. Sliding rod; 304. Support plate; 305. Clamping assembly; 3051. Second threaded shaft; 3052. First semicircular plate; 306. Support assembly; 3061. Second semicircular plate; 3062. Spring; 3063. Sliding shaft; 4. Housing; 5. Fuel tank; 6. Handle. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-5 As shown in the embodiment of this utility model, a walking beam heat treatment tempering furnace includes a fixed platform 1 with an outer shell 4 for overall enclosure and heat preservation. A heating component 2 is installed on the inner wall of the fixed platform 1 to provide multi-directional heat energy and form a relatively uniform heating environment. A moving mechanism 3 is threadedly connected to the upper part of the heating component 2 to move the workpiece. A clamping component 305 is provided on the moving mechanism 3 to position and stably fix the workpiece to be heat treated. A support component 306 is provided below it to support workpieces of different sizes and shapes, ensuring that the workpiece maintains spatial stability and force balance during the heat treatment process.

[0031] A fuel tank 5 is installed on top of the outer shell 4. The fuel tank 5 is used to provide fuel and, in conjunction with temperature control, to meet various complex requirements in the heat treatment process. The moving mechanism 3 can drive the clamping component 305 and the support component 306 to clamp and limit the workpiece as it moves in and out of the heating component 2, and rotates and circulates within the heating component 2, thereby achieving the purpose of heating the workpiece from multiple sides and angles. Through the rotating multi-directional heating method, the uniformity of the temperature field inside the furnace is significantly improved, effectively solving the problems of large temperature difference, uneven heating, local overheating or insufficient tempering caused by unreasonable power configuration and improper workpiece arrangement in traditional devices. This improves the consistency of the heat treatment process and the stability of product quality, and is suitable for precision heat treatment operations in various process scenarios.

[0032] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, the heating component 2 includes a drive motor 201, which is installed inside the fixed platform 1. The output end of the drive motor 201 is fixedly connected to a first threaded shaft 202, which is rotatably connected inside the fixed platform 1. A meshing component 203 is fixedly connected to the first threaded shaft 202, and a conduction component 204 is rotatably connected to the inner wall of the meshing component 203. A spraying component 205 is connected to the conduction component 204. A moving mechanism 3 is threadedly connected to the first threaded shaft 202. After the drive motor 201 starts, it drives the first threaded shaft 202 to rotate. By rotating the first threaded shaft 202, the moving mechanism 3 is moved axially. The workpiece clamped and limited between the clamping component 305 and the support component 306 moves to the inside of the spraying component 205. At the same time, the meshing component 203 transmits power to the conduction component 204, driving the spraying component 205 to rotate and spray the heat medium in a circumferential direction, so that the workpiece is heated from multiple sides during the heating process.

[0033] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, the meshing assembly 203 includes a circular gear 2031, which is fixedly connected to the first threaded shaft 202. A gear sleeve 2032 is meshed with the circular gear 2031, and a transmission assembly 204 is rotatably connected to the gear sleeve 2032. One end of the transmission assembly 204 is connected to the fuel tank 5, and the other end of the transmission assembly 204 away from the fuel tank 5 is connected to the injection assembly 205. The drive motor 201 drives the first threaded shaft 202 to rotate, which in turn drives the circular gear 2031 of the first threaded shaft 202 to rotate, thereby driving the gear sleeve 2032 meshing with the circular gear 2031 to rotate, which in turn drives the transmission assembly 204 to rotate. The rotation of the transmission assembly 204 drives the injection assembly 205 connected to it to rotate and heat it.

[0034] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, the transmission assembly 204 includes a rotating circular plate 2041, which is rotatably connected to the gear sleeve 2032. The rotating circular plate 2041 is provided with a plurality of transmission pipes 2033. One end of the plurality of transmission pipes 2033 is connected to a liquid supply hose 2042 through a flow channel inside the rotating circular plate 2041. The liquid supply hose 2042 is connected to a fuel tank 5. The end of the plurality of transmission pipes 2033 away from the rotating circular plate 2041 is connected to a spray assembly 205. During use, the drive motor 201 starts and drives the first threaded shaft 202 to rotate. The first threaded shaft 202 drives the circular gear 2031 fixed on it to rotate, thereby driving the gear sleeve 2032 to rotate through the meshing structure. At the same time as the gear sleeve 2032 rotates, it drives the rotating circular plate 2041 rotatably connected inside it to rotate synchronously. At this time, the fuel tank 5 inputs the heat medium into the rotating circular plate 2041 through the supply hose 2042, distributes it to each conduction pipe 2033 through the internal flow channel, and finally sprays it out by multiple spray components 205 to achieve multi-angle and uniform heating of the clamped workpiece. Through this structure, the rotational output of the heat source and multi-face coverage of the workpiece are realized, which enhances the uniformity of the temperature field distribution and avoids the problems of local overheating or insufficient tempering of the workpiece in traditional devices, thereby improving the quality and consistency of heat treatment.

[0035] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, the spraying assembly 205 includes a circular sleeve 2051, which is fixed on several conductive pipes 2033. Several injectors 2052 are provided on the inner wall of the circular sleeve 2051, and the injectors 2052 are connected to the several conductive pipes 2033. Baffles 2053 are provided on the front and rear sides of the circular sleeve 2051. The spraying assembly 205 is used to realize directional spraying heating of the workpiece. Its structure includes a circular sleeve 2051, which is fixedly installed at the end of multiple conductive pipes 2033 as a heat medium integrated spraying platform. The circular sleeve 2051 has a ring structure and is arranged along the rotation path of the conductive assembly 204 so that it can rotate synchronously with the conductive assembly 204 as a whole.

[0036] Several injectors 2052 are evenly arranged on the inner wall of the circular sleeve 2051. The injectors 2052 are built-in nozzles that are directly connected to the conduction pipe 2033. They are used to directionally spray out the heat medium input in the conduction pipe 2033. By setting multiple injectors 2052, a uniform heat flow output can be formed on the circumference, realizing multi-point and multi-angle coverage heating of the workpiece surface. Baffles 2053 are respectively set on the front and rear sides of the circular sleeve 2051. The baffles 2053 are made of heat-resistant material, which can effectively limit the heat flow diffusion range and form a semi-enclosed spray channel. On the one hand, it can enhance the heat concentration effect and improve the heating efficiency; on the other hand, it can also prevent the heat medium from splashing and protect the surrounding structural components, thereby improving the overall thermal energy utilization and safety of the device.

[0037] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, the moving mechanism 3 includes a threaded sleeve 301, which is threadedly connected to the first threaded shaft 202. A sliding plate 302 is fixedly connected to the threaded sleeve 301, and a support plate 304 is provided on the sliding plate 302. A clamping assembly 305 is provided on the support plate 304, and a support assembly 306 is provided below the clamping assembly 305. When the drive motor 201 drives the first threaded shaft 202 to rotate, the threaded sleeve 301 moves along the axial direction under the action of helical transmission, thereby driving the sliding plate 302, along with the clamping assembly 305 and the support assembly 306, to move forward or backward smoothly as a whole. This enables the workpiece to be directly clamped and limited by the clamping assembly 305 and the support assembly 306 and fed into the heating zone or out of the operating area.

[0038] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, sliding rods 303 are also provided on both sides inside the fixed platform 1. A sliding plate 302 is slidably connected between the two sliding rods 303. During operation, the drive motor 201 drives the first threaded shaft 202 to rotate. The threaded sleeve 301 on the first threaded shaft 202 generates axial displacement under the helical side effect, which in turn drives the sliding plate 302 fixedly connected to it to move smoothly in a straight line under the guidance of the sliding rods 303. The workpiece held by the entire clamping assembly 305 and the support assembly 306 moves forward or backward with the sliding plate 302, sending the workpiece into the heating area or out of the working area. The sliding rods 303 provide a guiding function to prevent the sliding plate 302 from lateral swaying or tilting during movement, thereby ensuring the stability of the workpiece position and the balance of force during the transmission process, improving the reliability of the device operation and the heating accuracy.

[0039] In one embodiment, see Figure 1 , Figure 3 and Figure 4As shown, the clamping assembly 305 includes a second threaded shaft 3051, which is threadedly connected to the inner wall of the support plate 304. A first semicircular plate 3052 is fixedly connected to the bottom of the second threaded shaft 3051. The first semicircular plate 3052 is a downwardly protruding arc-shaped pressure plate structure, and its arc inner diameter is adapted to the shape of the workpiece being clamped, so as to fit and press the surface of the workpiece. When it is necessary to clamp the workpiece, the operator can manually or electrically rotate the second threaded shaft 3051 to move the first semicircular plate 3052 downward to above the workpiece and apply an appropriate clamping force. When it is necessary to release the workpiece or adjust its position, the second threaded shaft 3051 can be rotated in the opposite direction to raise the first semicircular plate 3052, thereby achieving convenient clamping.

[0040] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, the support assembly 306 includes a sliding shaft 3063, the bottom of which is slidably connected to the support plate 304, and a second semicircular plate 3061 fixedly connected to the top of the sliding shaft 3063. A spring 3062 is provided between the outer wall of the second semicircular plate 3061 and the inner wall of the support plate 304, and the spring 3062 is sleeved on the sliding shaft 3063. The support assembly 306 is mainly used to provide compressible and flexible buffered lower support force for the clamped workpiece, and to achieve elastic protection during the clamping process to prevent the workpiece from deforming or being damaged due to excessive pressure. The support assembly 306 includes a sliding shaft 3063, the bottom of which can be slidably connected to the support plate 304 to ensure that it has a certain degree of freedom of movement in the axial direction; the top of the sliding shaft 3063 is fixedly connected to the second semicircular plate 3061, and the inner arc surface of the second semicircular plate 3061 is connected to the first semicircular plate in the clamping assembly 305. The inner walls of plate 3052 are fitted together to clamp and position cylindrical or curved workpieces. A spring 3062 is provided between the outer wall of the second semicircular plate 3061 and the inner wall of the support plate 304. The spring 3062 is sleeved on the outside of the sliding shaft 3063 to form a compressible elastic rebound mechanism. When the first semicircular plate 3052 is pressed down by rotating the second threaded shaft 3051 in the clamping assembly 305, the workpiece is subjected to a clamping force from top to bottom and gradually approaches the second semicircular plate 3061 on the support assembly 306. At this time, the second semicircular plate 3061 is displaced downward under the pressure of the workpiece, squeezing and compressing the spring 3062 to achieve flexible support. The rebound force of the spring 3062 provides elastic buffer for the workpiece, so that the workpiece can be stably positioned during the clamping process without being subjected to excessive concentrated compressive stress. It is particularly suitable for clamping workpieces with thin walls, easy deformation or high surface requirements.

[0041] In one embodiment, see Figure 1 and Figure 2 As shown, a handle 6 is also provided on one side of the upper part of the outer casing 4. The handle 6 is used to facilitate the user's grip and movement of the entire device, improving the ease of use.

[0042] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A step heat treatment tempering furnace comprising a fixed platform (1) on which an outer shell (4) is arranged, characterized in that, The inner wall of the fixed platform (1) is provided with a heating component (2), a moving mechanism (3) is threadedly connected to the heating component (2), a clamping component (305) is provided on the moving mechanism (3), a support component (306) is provided below the clamping component (305), a fuel tank (5) is provided above the outer shell (4), and the fuel tank (5) is connected to the heating component (2).

2. A step-type heat treatment tempering furnace according to claim 1, characterized in that, The heating component (2) includes a drive motor (201), which is located inside the fixed platform (1). The output end of the drive motor (201) is fixedly connected to a first threaded shaft (202), which is rotatably connected inside the fixed platform (1). A meshing component (203) is fixedly connected to the first threaded shaft (202), and a conduction component (204) is rotatably connected to the inner wall of the meshing component (203). A jetting component (205) is connected to the conduction component (204), and a moving mechanism (3) is threadedly connected to the first threaded shaft (202).

3. A step-type heat treatment tempering furnace according to claim 2, characterized in that, The meshing assembly (203) includes a circular gear (2031), which is fixedly connected to the first threaded shaft (202). A gear sleeve (2032) is meshed on the circular gear (2031). A transmission assembly (204) is rotatably connected to the gear sleeve (2032). One end of the transmission assembly (204) is connected to the fuel tank (5), and the other end of the transmission assembly (204) away from the fuel tank (5) is connected to the injection assembly (205).

4. A step-type heat treatment tempering furnace according to claim 3, wherein The transmission assembly (204) includes a rotating circular plate (2041), which is rotatably connected to a gear sleeve (2032). The rotating circular plate (2041) is provided with a plurality of transmission pipes (2033). One end of each of the transmission pipes (2033) is connected to a liquid supply hose (2042) through a flow channel inside the rotating circular plate (2041). The liquid supply hose (2042) is connected to a fuel tank (5). The end of each of the transmission pipes (2033) away from the rotating circular plate (2041) is connected to a spray assembly (205).

5. A step-type heat treatment tempering furnace according to claim 4, characterized in that, The spraying assembly (205) includes a circular sleeve (2051), which is fixed on a plurality of transmission pipes (2033). A plurality of sprayers (2052) are provided on the inner wall of the circular sleeve (2051), and the plurality of sprayers (2052) are connected to the plurality of transmission pipes (2033). Baffles (2053) are provided on the front and rear sides of the circular sleeve (2051).

6. A step-type heat treatment tempering furnace according to claim 2, wherein The moving mechanism (3) includes a threaded sleeve (301), which is threadedly connected to a first threaded shaft (202). A sliding plate (302) is fixedly connected to the threaded sleeve (301), and a support plate (304) is provided on the sliding plate (302). A clamping assembly (305) is provided on the support plate (304), and a support assembly (306) is provided below the clamping assembly (305).

7. A step-type heat treatment tempering furnace according to claim 6, characterized in that, Both sides of the fixed platform (1) are also provided with sliding rods (303), and the two sliding rods (303) are slidably connected with a sliding plate (302).

8. A step-type heat treatment tempering furnace according to claim 1, characterized in that, The clamping assembly (305) comprises a second threaded shaft (3051) which is threadedly connected to the inner wall of the support plate (304), and the bottom of the second threaded shaft (3051) is fixedly connected with a first semicircular plate (3052).

9. The step-type heat treatment tempering furnace according to claim 1, characterized in that, The support assembly (306) comprises a sliding shaft (3063) which is slidably connected to the inside of the support plate (304), and the top of the sliding shaft (3063) is fixedly connected with a second semicircular plate (3061), and a spring (3062) is arranged between the outer wall of the second semicircular plate (3061) and the inner wall of the support plate (304), and the spring (3062) is sleeved on the sliding shaft (3063).

10. The step-type heat treatment tempering furnace according to claim 1, characterized in that, A handle (6) is further arranged on one side above the shell (4).

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