Medium-temperature slow cooling device for heat-treated steel plate

Abstract

The utility model discloses a medium-temperature slow cooling device for a heat treatment steel plate, which comprises a rack and a heat preservation slow cooling box arranged at the upper end of the rack, and a heat preservation mechanism is arranged in the heat preservation slow cooling box. The heat preservation mechanism comprises a plurality of conveying rollers, a set of sealing shells, a set of rotating motors, a set of rotating shafts, two sets of winding wheels, two sets of steel wire connecting ropes and a set of sealing baffles. The heat preservation and slow cooling device has the advantages that the heat preservation mechanism is arranged in the heat preservation and slow cooling box, a rolled steel plate is fed into the heat preservation and slow cooling box through an external feeding frame, a set of rotating motors drive a set of sealing baffles to descend, the heat preservation and slow cooling box is sealed, and the heat preservation and slow cooling effect on the steel plate is achieved; and cracks are prevented from being generated in the steel plate cooling process.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology, specifically to a medium-temperature slow cooling device for heat-treated steel plates. Background Technology

[0002] Heat treatment of steel plates is a process that involves heating, holding, and cooling solid steel in an appropriate manner to obtain the desired microstructure and properties. Its key characteristic is that it alters the internal structure of parts or blanks without changing their shape and dimensions. It is an important means of achieving high strength, high toughness, wear resistance, high-temperature durability, and uniform performance across all dimensions in steel plates.

[0003] In the heat treatment of steel plates, heat preservation and slow cooling are important methods in the cooling stage. Traditionally, the cooling rate of hot steel plates is controlled by using insulated pits. These pits are constructed with reinforced concrete, with slab pads at the bottom. The inner walls are reinforced with guardrails, and the walls and bottom are constructed with thermal insulation material. Each pit is fitted with an insulated steel cover. However, these insulated pits are expensive to construct, and the insulation material is prone to detachment after prolonged exposure, affecting the effectiveness of heat preservation and slow cooling. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a medium-temperature slow cooling device for heat-treated steel plates to solve the problem of heat preservation and slow cooling of heat-treated steel plates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A medium-temperature slow cooling device for heat-treated steel plates includes a frame and an insulated slow cooling box installed on the upper end of the frame, wherein an insulation mechanism is provided inside the insulated slow cooling box;

[0007] The insulation mechanism includes several conveying rollers, a set of sealing shells, a set of rotary motors, a set of rotary shafts, two sets of winding reels, two sets of steel wire connecting ropes, and a set of sealing baffles. The several conveying rollers are movably installed inside the insulation and slow cooling box. The set of sealing shells is fixedly embedded on both sides of the insulation and slow cooling box. The set of rotary motors is installed at the top front end of the set of sealing shells. The set of rotary shafts is movably installed inside the top of the set of sealing shells, and its front end is connected to the rotating end of the corresponding rotary motor. The two sets of winding reels are installed on the set of rotary shafts. The two sets of steel wire connecting ropes are wound around the two sets of winding reels. The set of sealing baffles is movably installed inside the set of sealing shells, and its upper end is connected to the corresponding steel wire connecting rope.

[0008] Furthermore, a fixed horizontal plate is installed on the bottom right side of the heat preservation and slow cooling box, a servo cylinder is installed at the bottom of the fixed horizontal plate, a push plate is installed on the telescopic end of the servo cylinder, and a set of baffle rods are installed on both sides of the upper end of the push plate.

[0009] Furthermore, a set of guide cylinders are embedded on both sides of the fixed horizontal plate, and a set of material stop rods are movably inserted into the set of guide cylinders.

[0010] Furthermore, a drive motor is installed at the rear end of the heat preservation and slow cooling box. The rotating end of the drive motor is connected to one of the conveyor rollers, and adjacent sets of conveyor rollers are connected by a transmission chain.

[0011] Furthermore, a set of servo cylinders are respectively installed on one side of the upper end of the sealing shell. The telescopic end of the servo cylinder is movably inserted into the sealing shell, and a positioning plate corresponding to the sealing baffle is installed on the telescopic end of the servo cylinder.

[0012] Furthermore, the interior of the heat-insulating slow-cooling box, a set of sealed shells, and a set of sealed baffles are each filled with heat-insulating material.

[0013] This utility model provides a medium-temperature slow cooling device for heat-treated steel plates, which has the following beneficial effects: by setting up a heat preservation mechanism inside the heat preservation slow cooling box, the rolled steel plate is fed into the heat preservation slow cooling box through an external feeding rack. A set of rotating motors drives a set of sealing baffles to descend, sealing the heat preservation slow cooling box and achieving the effect of heat preservation and slow cooling of the steel plate, avoiding cracks in the steel plate during the cooling process, and making it convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a medium-temperature slow cooling device for heat-treated steel plates according to the present invention.

[0015] Figure 2 This is a schematic diagram of the rotating shaft of this utility model.

[0016] Figure 3 This is a schematic diagram of the two-stage transmission of the servo cylinder of this utility model.

[0017] Figure 4 This is an external view of the heat-insulating and slow-cooling box described in this utility model.

[0018] Figure 5 This is a top view of the heat-insulating and slow-cooling box described in this utility model.

[0019] In the diagram: 1. Frame; 2. Insulated cooling box; 3. Conveyor roller; 4. Sealing shell; 5. Rotary motor; 6. Rotary shaft; 7. Winding reel; 8. Steel wire connecting rope; 9. Sealing baffle; 10. Fixed cross plate; 11. Servo cylinder one; 12. Push plate; 13. Material stop bar; 14. Guide cylinder; 15. Drive motor; 16. Transmission chain; 17. Servo cylinder two; 18. Positioning plate. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] Please see Figures 1 to 5 As shown in the figure, this application provides a medium-temperature slow cooling device for heat-treated steel plates, including a frame 1 and a heat-insulating slow cooling box 2 installed on the upper end of the frame 1. The heat-insulating slow cooling box 2 is characterized by having a heat-insulating mechanism inside. The heat-insulating mechanism includes several conveying rollers 3, a set of sealing shells 4, a set of rotary motors 5, a set of rotary shafts 6, two sets of winding wheels 7, two sets of steel wire connecting ropes 8, and a set of sealing baffles 9. The several conveying rollers 3 are movably installed inside the heat-insulating slow cooling box 2 through fastening bearings. The set of sealing shells 4 is fixedly embedded on both sides of the heat-insulating slow cooling box 2. The set of rotary motors 5 is installed at the top front end of the set of sealing shells 4. The set of rotary shafts 6 is movably installed at the top of the set of sealing shells 4 through fastening bearings, and their front ends are respectively connected to the rotating ends of the corresponding rotary motors 5. The two sets of winding wheels 7 are installed on the set of rotary shafts 6. The two sets of steel wire connecting ropes 8 are wound on the two sets of winding wheels 7. The set of sealing baffles 9 is movably installed inside the set of sealing shells 4, and their upper ends are respectively connected to the corresponding steel wire connecting ropes 8.

[0022] In this embodiment, a set of sealing baffles 9 are initially located at the top of a set of sealing shells 4. The rolled steel plate is fed into several conveyor rollers 3 inside the heat-insulating and slow-cooling box 2 via an external feeding frame. This can be achieved using existing technology. Then, a set of rotary motors 5 drives a set of rotating shafts 6 to rotate, and through two sets of winding wheels 7 and two sets of steel wire connecting ropes 8, the set of sealing baffles 9 descends, passes between the opposing set of conveyor rollers 3, and extends into the bottom set of sealing shells 4. Figure 1 As shown, the heat preservation and slow cooling box 2 is sealed to achieve the effect of heat preservation and slow cooling of the steel plate, avoiding cracks in the steel plate during the cooling process. After the heat preservation and slow cooling of the steel plate is completed, a set of rotary motors 5 reverses and drives a set of sealing baffles 9 to reset. Several conveying rollers 3 can send the steel plate out of the heat preservation and slow cooling box 2 for convenient use.

[0023] In some embodiments, a fixed horizontal plate 10 is installed on the bottom right side of the heat-insulating and slow-cooling box 2. A servo cylinder 11 is installed at the bottom of the fixed horizontal plate 10. A push plate 12 is installed at the telescopic end of the servo cylinder 11. A set of baffle rods 13 are installed on both sides of the upper end of the push plate 12. Figure 3As shown, a set of baffle rods 13 is used to limit the front end of the steel plate on the conveying roller 3. The extension end of the servo cylinder 11 extends, driving the push plate 12 to move downward and causing the set of baffle rods 13 to descend, so that the steel plate can be sent out of the heat preservation and slow cooling box 2.

[0024] In some embodiments, a set of guide cylinders 14 are embedded on both sides of the fixed horizontal plate 10, and a set of baffle rods 13 are movably inserted into the set of guide cylinders 14, which serve as guides.

[0025] In some embodiments, a drive motor 15 is installed at the rear end of the heat preservation and slow cooling box 2. The rotating end of the drive motor 15 is connected to one of the conveying rollers 3, and adjacent sets of conveying rollers 3 are connected by transmission chains 16. The drive motor 15 can drive several conveying rollers 3 to rotate synchronously through several transmission chains 16, which facilitates the conveying of steel plates.

[0026] In some embodiments, a set of sealing shells 4 are respectively equipped with a second servo cylinder 17 on one side of the upper end. The telescopic end of the second servo cylinder 17 is movably inserted into the sealing shell 4, and the telescopic end of the second servo cylinder 17 is equipped with a positioning plate 18 corresponding to the sealing baffle 9. Figure 1 As shown, after a set of sealing baffles 9 descends, the servo cylinder 2 17 drives the positioning plate 18 to limit the sealing baffles 9, so that the sealing baffles 9 fit against the inner wall of the sealing shell 4 to improve the sealing effect.

[0027] In some embodiments, the heat-insulating slow-cooling box 2, a set of sealed shells 4 and a set of sealed baffles 9 are respectively filled with heat-insulating materials, and asbestos can be used as the heat-insulating material to achieve the purpose of slow cooling of the steel plate.

[0028] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A device for slow cooling in a heat treatment of a steel sheet, comprising a frame (1) and a slow cooling box (2) installed at the upper end of the frame (1), characterized in that, The heat preservation and slow cooling box (2) is equipped with a heat preservation mechanism; The heat preservation mechanism includes several conveying rollers (3), a set of sealing shells (4), a set of rotary motors (5), a set of rotating shafts (6), two sets of winding wheels (7), two sets of steel wire connecting ropes (8), and a set of sealing baffles (9). Several conveying rollers (3) are movably installed inside the heat preservation slow cooling box (2). A set of sealing shells (4) is fixedly embedded on both sides of the heat preservation slow cooling box (2). A set of rotary motors (5) is installed at the top front end of a set of sealing shells (4). A set of rotating shafts (6) is movably installed inside the top of a set of sealing shells (4), and the front ends are respectively connected to the rotating ends of the corresponding rotary motors (5). Two sets of winding wheels (7) are installed on a set of rotating shafts (6). Two sets of steel wire connecting ropes (8) are wound on two sets of winding wheels (7). A set of sealing baffles (9) is movably installed inside a set of sealing shells (4), and the upper ends are respectively connected to the corresponding steel wire connecting ropes (8).

2. The device for tempering a steel sheet at a medium temperature according to claim 1, wherein A fixed horizontal plate (10) is installed on the bottom right side of the heat preservation and slow cooling box (2). A servo cylinder (11) is installed at the bottom of the fixed horizontal plate (10). A push plate (12) is installed at the telescopic end of the servo cylinder (11). A set of baffle rods (13) are installed on both sides of the upper end of the push plate (12).

3. The device for tempering a steel sheet at a medium temperature according to claim 2, wherein A set of guide cylinders (14) are embedded on both sides of the fixed horizontal plate (10), and a set of baffle rods (13) are movably inserted into the set of guide cylinders (14).

4. The device for tempering a steel sheet at a medium temperature according to claim 1, wherein The heat preservation and slow cooling box (2) is equipped with a drive motor (15) at the rear end. The rotating end of the drive motor (15) is connected to one of the conveying rollers (3), and adjacent sets of conveying rollers (3) are connected by a transmission chain (16).

5. The device for tempering a steel sheet at a medium temperature according to claim 1, wherein A set of sealing shells (4) are respectively equipped with a servo cylinder two (17) on one side of the upper end. The extension end of the servo cylinder two (17) is movably inserted into the sealing shell (4), and the extension end of the servo cylinder two (17) is equipped with a positioning plate (18) corresponding to the sealing baffle (9).

6. The device for tempering a steel sheet at a medium temperature according to claim 1, wherein The heat-insulating slow-cooling box (2), a set of sealed shells (4) and a set of sealed baffles (9) are respectively filled with heat-insulating materials.

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