Cooling device for parts subjected to heat treatment

Abstract

The utility model relates to a heat treatment part cooling device which comprises a bottom plate and a cooling box arranged at the top of the bottom plate, a first supporting frame is arranged at one end of the top of the bottom plate, a second supporting frame is arranged at the end, away from the first supporting frame, of the top of the cooling box, and a pair of guide rails is arranged at the tops of the opposite faces of the first supporting frame and the second supporting frame. The upper portions of the inner walls of the two sides of the cooling box are provided with air cooling cooling mechanisms, the upper portions of the inner walls of the front side and the rear side of the cooling box are provided with water spraying cooling mechanisms, and the lower portion of the interior of the cooling box is filled with cooling water. The end, away from the first supporting frame, of the bottom plate is provided with a heat exchanger connected with the cooling box. The cooling device is good in cooling effect and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment processing technology, and in particular to a cooling device for heat-treated parts. Background Technology

[0002] After heat treatment, metal parts have a high surface temperature, making them difficult to transfer to the next process. Therefore, to quickly lower the surface temperature, they are usually immersed in cooling water. However, when a hot part is directly immersed in cold water, the surface cools rapidly, while the internal temperature drops more slowly, resulting in a significant temperature difference between the surface and the interior. This temperature difference can generate thermal stress within the part, potentially causing deformation or cracking. Summary of the Invention

[0003] The present invention aims to address the shortcomings of the prior art by providing a cooling device for heat-treated parts.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a cooling device for heat-treated parts, comprising a base plate and a cooling box disposed on the top of the base plate. A first support frame is provided at one end of the top of the base plate, and a second support frame is provided at the end of the top of the cooling box away from the first support frame. A pair of guide rails are provided on the top of the opposing surfaces of the first and second support frames. A movable plate is slidably mounted on the guide rails. A power mechanism for driving the movable plate to move is provided on the first and second support frames. A winch is installed at the bottom of the movable plate, and a material frame is suspended on the wire rope of the winch. An air-cooling mechanism is provided on the upper part of the inner walls on both sides of the cooling box, and a water-spraying mechanism is provided on the upper part of the inner walls on the front and rear sides. Cooling water is filled in the lower part of the interior of the cooling box. A heat exchanger connected to the cooling box is provided at the end of the top of the base plate away from the first support frame.

[0005] Specifically, a hanger is fixed to the bottom of the movable plate, and the winch is installed inside the hanger.

[0006] Specifically, the power mechanism includes a lead screw rotatably connected to the top of the opposing surfaces of the first and second support frames. The lead screw is located between a pair of guide rails and is threadedly connected to a movable plate. A motor for driving the lead screw to rotate is provided on the outside of the second support frame.

[0007] Specifically, the air-cooled cooling mechanism includes an air inlet pipe, an air outlet, and a fan. The air inlet pipe is arranged in a serpentine shape inside the inner walls on both sides of the cooling box. Several air outlets are installed on the air inlet pipe and connected to the inside of the cooling box. The outlet ends of the air outlets are tilted downwards. The fans are installed on both sides of the cooling box and connected to the air inlet pipe.

[0008] Specifically, the cooling box has a water inlet on one side and a drain outlet at the bottom on the other side. A circulation pump is installed on one side of the cooling box, and the drain outlet and the heat exchanger are connected through the circulation pump. The cold water outlet of the heat exchanger is connected to the cooling box.

[0009] Specifically, the water spray cooling mechanism includes a water spray pipe, nozzles, and a water spray pump. The water spray pipe is arranged in a serpentine pattern inside the inner wall of the front and rear sides of the cooling box. Several nozzles are embedded in the inner wall of the cooling box and connected to the water spray pipe. The water spray pump is located on the front and rear sides of the cooling box and is connected to the water spray pipe. The water inlet pipe of the water spray pump is connected to the cooling box.

[0010] The beneficial effects of this utility model are as follows: This utility model employs a gradual cooling method—first air cooling, then water spray cooling, and finally immersion in cold water—to rapidly reduce the surface temperature of parts, thereby reducing thermal stress during the cooling process and minimizing the risk of deformation and cracking due to excessive temperature differences. The inclusion of a first support frame, a second support frame, guide rails, a moving plate, a power mechanism, a winch, and a material frame facilitates loading and unloading. The water spray pump, heat exchanger, and circulating pump ensure that the cooling water maintains a good cooling effect even after multiple cycles. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram showing the positions of the air inlet pipe and water spray pipe of this utility model;

[0013] In the diagram: 1-Base plate; 2-Cooling box; 3-First support frame; 4-Second support frame; 5-Guide rail; 6-Moving plate; 7-Winder; 8-Material frame; 9-Heat exchanger; 10-Hanger; 11-Screw screw; 12-Motor; 13-Air inlet pipe; 14-Air outlet; 15-Fan; 16-Water inlet; 17-Drain outlet; 18-Circulating pump; 19-Water spray pipe; 20-Nozzle; 21-Water spray pump;

[0014] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] like Figures 1-2As shown, a cooling device for heat-treated parts includes a base plate 1 and a cooling box 2 disposed on the top of the base plate 1. A first support frame 3 is provided at one end of the top of the base plate 1, and a second support frame 4 is provided at the end of the top of the cooling box 2 away from the first support frame 3. A pair of guide rails 5 are provided on the top of the opposite surfaces of the first support frame 3 and the second support frame 4. A movable plate 6 is slidably sleeved on the guide rails 5. A power mechanism for driving the movable plate 6 to move is provided on the first support frame 3 and the second support frame 4. The power mechanism includes a lead screw 11 rotatably connected to the top of the opposite surfaces of the first support frame 3 and the second support frame 4. The lead screw 11 is located between the pair of guide rails 5 and is threadedly connected to the movable plate 6. A motor 12 for driving the lead screw 11 to rotate is provided on the outside of the second support frame 4. A winch 7 is installed at the bottom of the movable plate 6, and a hanger 10 is fixedly connected to the bottom of the movable plate 6. The winch 7 is installed in the hanger 10, and a material frame 8 is suspended on the wire rope of the winch 7. The arrangement of the power mechanism and the winch 7 makes it convenient and fast to load and unload the material frame 8.

[0017] The upper part of the inner wall on both sides of the cooling box 2 is provided with an air-cooled cooling mechanism. The air-cooled cooling mechanism includes an air inlet pipe 13, an air outlet 14, and a fan 15. The air inlet pipe 13 is arranged in a serpentine shape inside the inner wall on both sides of the cooling box 2. Several air outlets 14 are arranged on the air inlet pipe 13 and are connected to the inside of the cooling box 2. The outlet end of the air outlet 14 is inclined downward. The fan 15 is installed on both sides of the cooling box 2 and connected to the air inlet pipe 13.

[0018] Specifically, when the material frame 8 enters the cooling box 2, the fan 15 is activated to cool the parts inside the material frame 8 using air cooling. Air cooling removes heat from the surface of the parts through airflow, resulting in a relatively gentle cooling rate that effectively reduces the temperature difference between the surface and interior of the parts, thereby reducing thermal stress. This is particularly important for parts with complex shapes or thin walls, as these parts are more sensitive to temperature differences and are prone to deformation or cracking due to thermal stress. Simultaneously, air cooling serves as a preliminary cooling step, gradually reducing the part temperature from a high temperature to a relatively safe range before subsequent water spray cooling or immersion cooling. This gradual cooling method effectively reduces internal stress caused by rapid cooling of the parts.

[0019] The upper part of the inner wall of the front and rear sides of the cooling box 2 is provided with a water spraying cooling mechanism. The lower part of the interior of the cooling box 2 is filled with cooling water. The top of the bottom plate 1 is provided with a heat exchanger 9 connected to the cooling box 2 at the end away from the first support frame 3. The heat exchanger 9 is connected to the water spraying cooling mechanism. The cooling box 2 is provided with a water inlet 16 on one side and a drain outlet 17 at the bottom of the other side. A circulation pump 18 is provided on one side of the cooling box 2. The drain outlet 17 and the heat exchanger 9 are connected through the circulation pump 18. The cold water outlet of the heat exchanger 9 is connected to the cooling box 2. The water spraying cooling mechanism includes a water spray pipe 19, nozzles 20, and a water spray pump 21. The water spray pipe 19 is arranged in a serpentine manner inside the inner wall of the front and rear sides of the cooling box 2. Several nozzles 20 are embedded in the inner wall of the cooling box 2 and connected to the water spray pipe 19. The water spray pump 21 is respectively arranged on the front and rear sides of the cooling box 2 and connected to the water spray pipe 19. The water inlet pipe of the water spray pump 21 is connected to the cooling box 2.

[0020] Specifically, after air cooling, water is sprayed through nozzle 20 for further cooling, and then the parts are immersed in water to cool areas that are difficult to reach with the spray. After water spraying, the cooling water absorbs heat from the parts, causing its temperature to rise, which may affect the cooling water in the cooling tank 2. However, the circulating pump 18 and heat exchanger 9 continuously cool the water, effectively lowering its temperature and bringing it back to a suitable cooling range. Therefore, even if the cooling water temperature rises due to falling into the lower part during spraying, it can still maintain a low temperature after being cooled by the heat exchanger 9, allowing it to continue to be used for spraying or immersion cooling. Simultaneously, the cooling water volume in the cooling tank 2 is relatively large, so even if some cooling water temperature rises due to spraying, the overall water temperature change is relatively small. Therefore, after air cooling and water spraying, the part temperature has dropped significantly, and the cooling water immersed in the cooling tank 2 can still effectively cool the internal areas of the parts. The circulation pump 18 and heat exchanger 9 ensure that the cooling water maintains a good cooling effect even after multiple cycles.

[0021] In operation, the heat-treated parts are placed in the material frame 8. The motor 12 and winch 7 are started to move the material frame 8 above the cooling box 2. When the material frame 8 is lowered into the upper part of the cooling box 2, the fan 15 is started for initial air cooling. After air cooling is completed, the water spray pump 21 and circulation pump 18 are started, and the nozzles 20 spray water to cool the parts. At the same time, the cooling water in the cooling box 2 is kept at a stable temperature within a certain range through the heat exchanger 9. After water cooling, the material frame 8 is lowered into the cooling box 2 for immersion cooling. After immersion cooling, it is lifted and the fan 15 is started again for air drying. Finally, it is removed under the action of the motor 12 and winch 7. This invention has a good cooling effect on heat-treated parts and is easy to use.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A cooling device for heat-treated parts, comprising a base plate (1) and a cooling box (2) disposed on top of the base plate (1), characterized in that, The top end of the base plate (1) is provided with a first support frame (3), the top end of the cooling box (2) away from the first support frame (3) is provided with a second support frame (4), the top of the first support frame (3) and the second support frame (4) is provided with a pair of guide rails (5), a moving plate (6) is slidably sleeved on the guide rails (5), the first support frame (3) and the second support frame (4) are provided with a power mechanism to drive the moving plate (6) to move, a winch (7) is installed at the bottom of the moving plate (6), a material frame (8) is suspended on the wire rope of the winch (7), the upper part of the inner wall on both sides of the cooling box (2) is provided with an air cooling mechanism, the upper part of the inner wall on the front and rear sides is provided with a water spray cooling mechanism, the lower part of the interior of the cooling box (2) is filled with cooling water, and the top end of the base plate (1) away from the first support frame (3) is provided with a heat exchanger (9) connected to the cooling box (2).

2. The cooling device for heat-treated parts according to claim 1, characterized in that, The bottom of the movable plate (6) is fixed with a hanger (10), and the winch (7) is installed inside the hanger (10).

3. The cooling device for heat-treated parts according to claim 1, characterized in that, The power mechanism includes a lead screw (11) rotatably connected to the top of the opposite surfaces of the first support frame (3) and the second support frame (4). The lead screw (11) is located between a pair of guide rails (5) and is threadedly connected to the moving plate (6). A motor (12) for driving the lead screw (11) to rotate is provided on the outside of the second support frame (4).

4. A cooling device for heat-treated parts according to claim 1, characterized in that, The air-cooled cooling mechanism includes an air inlet pipe (13), an air outlet (14), and a fan (15). The air inlet pipe (13) is arranged in a serpentine shape inside the inner walls on both sides of the cooling box (2). Several air outlets (14) are arranged on the air inlet pipe (13) and connected to the interior of the cooling box (2). The outlet end of the air outlet (14) is inclined downward. The fan (15) is installed on both sides of the cooling box (2) and connected to the air inlet pipe (13).

5. A cooling device for heat-treated parts according to claim 1, characterized in that, The cooling tank (2) has an inlet (16) on one side and a drain (17) at the bottom on the other side. A circulation pump (18) is provided on one side of the cooling tank (2). The drain (17) and the heat exchanger (9) are connected through the circulation pump (18), and the cold water outlet of the heat exchanger (9) is connected to the cooling tank (2).

6. A cooling device for heat-treated parts according to claim 1, characterized in that, The water spray cooling mechanism includes a water spray pipe (19), nozzles (20), and a water spray pump (21). The water spray pipe (19) is arranged in a serpentine manner inside the inner wall of the front and rear sides of the cooling box (2). Several nozzles (20) are embedded in the inner wall of the cooling box (2) and connected to the water spray pipe (19). The water spray pump (21) is respectively arranged on the front and rear sides of the cooling box (2) and connected to the water spray pipe (19). The water inlet pipe of the water spray pump (21) is connected to the cooling box (2).

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