Quick heating device for heavy haul railway frozen clamp plate processing

Abstract

The utility model discloses a kind of quick heating devices for heavy load railway frozen splint processing, frozen splint is the shape of thin edge and medium thickness, quick heating device includes induction heating furnace body, arc induction loop and workpiece rotating mechanism, arc induction loop is horizontally arranged and symmetrically installed in the heating cavity of induction heating furnace body, workpiece rotating mechanism is arranged at the both ends of induction heating furnace body, and the workpiece mounting portion of workpiece rotating mechanism is located in heating cavity and between two arc induction loops.The heating device is heated to frozen splint, arc induction loop first heats the middle part of frozen splint, workpiece rotating mechanism rotates a certain angle with frozen splint, then heats the two thinner sides of frozen splint.The device can rotate the workpiece to be heated to ensure that the workpiece is heated sufficiently, prevent a part of workpiece from overheating, ensure the heating effect of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a rapid heating device for processing frozen steel plates for heavy-duty railways. Background Technology

[0002] Heavy-haul railway frozen rail joints (also known as fishplates) are rail joints that keep the rail ends constantly in a tight abutment state. Because they are subjected to large loads and frequent impacts, these frozen rail joints are typically designed with thin edges and a thicker middle section to improve strength and ensure stability. The edges are designed for better contact with the top and bottom of the rail sides, while the thicker middle section increases the cross-sectional area. To improve the mechanical properties of the frozen rail joints, a heating process is used to alter their internal structure, thereby increasing their strength, toughness, and wear resistance. This is crucial for the frozen rail joints to withstand the enormous impacts and friction forces of train travel. Heat treatment also eliminates internal stresses generated during casting or rolling, preventing breakage due to stress concentration during use. This ensures the safe and stable operation of the railway track.

[0003] Heating of frozen clamps is generally achieved using an induction heating furnace. The frozen clamps are placed in the heating chamber of the induction heating furnace, left to stand for a period of time, and then removed. During the heating process, the frozen clamps are fixed in position within the spiral induction coil. The edges are heated first, while the thicker middle part heats up more slowly, resulting in inconsistent heating and uneven heating, which affects the heating effect of the frozen clamps and the quality of the product. Utility Model Content

[0004] The purpose of this invention is to provide a rapid heating device for processing frozen steel plates for heavy-duty railways, so as to solve the problem that the existing frozen steel plates have inconsistent heating between the edges and the middle, resulting in uneven heating.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rapid heating device for processing frozen clamps for heavy-haul railways, wherein the frozen clamps are thin at the edges and thick in the middle, the rapid heating device includes an induction heating furnace body, an arc-shaped induction coil and a workpiece rotating mechanism, the arc-shaped induction coil is horizontally arranged and symmetrically installed in the heating cavity of the induction heating furnace body, the workpiece rotating mechanism is arranged at both ends of the induction heating furnace body, and the workpiece mounting part of the workpiece rotating mechanism is located in the heating cavity and between the two arc-shaped induction coils.

[0006] A further technical solution is as follows: the workpiece rotation mechanism includes a motor, a rotating disk, and a workpiece fixture. The motor is mounted on the induction heating furnace body. The rotating disks are symmetrically arranged and rotatably mounted at both ends of the induction heating furnace body. The two ends of the workpiece fixture are respectively connected to the two rotating disks. The power output end of the motor is connected to one of the rotating disks in a transmission connection.

[0007] A further technical solution is that the workpiece fixture is made of a non-metallic high-temperature resistant material.

[0008] A further technical solution is: the workpiece fixture includes end plates and connecting rods, and a plurality of the connecting rods are arranged in a ring and their two ends are connected to two end plates.

[0009] A further technical solution is that the arc length of the arc-shaped induction coil is between the thickness and width of the freezing clamp.

[0010] A further technical solution is: the feeding end of the induction heating furnace body is provided with a feeding mechanism, the feeding mechanism includes a roller conveyor and a pushing assembly, the pushing assembly is disposed on the roller conveyor, and the discharge end of the roller conveyor and the working end of the pushing assembly both face the feeding end of the induction heating furnace body.

[0011] A further technical solution is as follows: the pushing assembly includes a track, a slider, a shifting cylinder, and a pushing cylinder. The track is set on the roller conveyor and is horizontally arranged with the rotating roller. The slider is slidably mounted on the track. The shifting cylinder is set at one end of the track, and the power output end of the shifting cylinder is connected to the slider. The pushing cylinder is set on the slider, and the power output end of the pushing cylinder is perpendicular to the rotating roller.

[0012] A further technical solution is that the top of the track does not exceed the top of the roller.

[0013] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: This invention proposes a rapid heating device for processing frozen clamps for heavy-duty railways. When heating the frozen clamps, an arc-shaped induction coil first heats the middle portion of the clamp. A workpiece rotation mechanism rotates the clamp at a certain angle, then heats the thinner sides of the clamp. This device allows for rotation of the workpiece to ensure sufficient heating, prevent overheating of any part of the workpiece, and guarantee effective heating. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a rapid heating device for processing frozen steel plates for heavy-duty railways, according to the present invention.

[0015] Figure 2 This utility model Figure 1 A structural diagram from a side view.

[0016] Figure 3 This utility model Figure 1 A schematic diagram of the structure of the workpiece fixture.

[0017] Reference numerals: 1. Freezing clamp; 2. Induction heating furnace body; 3. Arc-shaped induction coil; 4. Workpiece rotation mechanism; 5. Motor; 6. Rotating disk; 7. Workpiece fixture; 8. End plate; 9. Connecting rod; 10. Feeding mechanism; 11. Roller conveyor; 111. Rotating roller; 12. Pushing assembly; 13. Track; 14. Slider; 15. Shifting cylinder; 16. Pushing cylinder. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] 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.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0024] This implementation example Figure 1 and Figure 2 As shown, a rapid heating device for processing frozen clamps for heavy-duty railways is provided. The frozen clamp 1 is thin at the edges and thick in the middle. The rapid heating device includes an induction heating furnace body 2, an arc-shaped induction coil 3, and a workpiece rotation mechanism 4. The arc-shaped induction coil 3 is horizontally arranged and symmetrically installed in the heating chamber of the induction heating furnace body 2. The workpiece rotation mechanism 4 is located at both ends of the induction heating furnace body 2. The workpiece mounting part of the workpiece rotation mechanism 4 is located in the heating chamber and between the two arc-shaped induction coils 3.

[0025] The arc-shaped induction coil 3 first heats a localized area of ​​the freezing clamp 1. Then, with the help of the workpiece rotation mechanism 4, the freezing clamp 1 is rotated by a certain angle, and the arc-shaped induction coil 3 heats another part of the freezing clamp 1. This rotational heating continues until the entire freezing clamp 1 is fully heated. This prevents the workpiece from being underheated or overheated in one part.

[0026] Preferably, the workpiece rotation mechanism 4 includes a motor 5, a rotating disk 6, and a workpiece fixture 7. The motor 5 is mounted on the induction heating furnace body 2. The rotating disks 6 are symmetrically arranged and rotatably mounted at both ends of the induction heating furnace body 2. The two ends of the workpiece fixture 7 are respectively connected to the two rotating disks 6. The power output end of the motor 5 is connected to one of the rotating disks 6 for transmission.

[0027] The motor 5 starts and rotates the rotating disk 6, which in turn rotates the workpiece fixture 7 and the freezing clamp 1 inside it, so as to ensure that the freezing clamp 1 is fully heated.

[0028] Preferably, the workpiece fixture 7 is made of a non-metallic high-temperature resistant material.

[0029] The workpiece fixture 7 is made of non-metallic high-temperature resistant material. While supporting the freezing clamp 1, it can also prevent high temperatures and avoid being heated itself.

[0030] Preferably, such as Figure 3 As shown, the workpiece fixture 7 includes end plates 8 and connecting rods 9. Several connecting rods 9 are arranged in a ring and their two ends are connected to two end plates 8.

[0031] There are hollows between the connecting rods 9 to reduce the presence of impurities and prevent impurities from affecting the frozen clamp 1 after heating.

[0032] Preferably, the arc length of the arc-shaped induction coil 3 is between the thickness and width of the freezing clamp 1.

[0033] The arc-shaped induction coil 3 provides localized heating to the freezing clamp 1, and works in conjunction with the workpiece rotation mechanism 4 to fully heat the freezing clamp 1, preventing localized overheating.

[0034] Preferably, the induction heating furnace body 2 is provided with a feeding mechanism 10 at the feeding end. The feeding mechanism 10 includes a roller conveyor 11 and a pushing assembly 12. The pushing assembly 12 is disposed on the roller conveyor 11. The discharge end of the roller conveyor 11 and the working end of the pushing assembly 12 are both facing the feeding end of the induction heating furnace body 2.

[0035] The feeding mechanism 10 replaces manual labor, achieving automatic feeding and pushing. It places the frozen clamp plate 1 to be heated on the roller conveyor 11 and transports it into the workpiece fixture 7 of the workpiece rotation mechanism 4. Next, the arc-shaped induction coil 3 heats the frozen clamp plate 1 in the workpiece fixture 7. After the frozen clamp plate 1 is fully heated, the arc-shaped induction coil 3 stops working, and the pushing component 12 pushes the frozen clamp plate 1 out of the workpiece fixture 7, and then prepares to send the next frozen clamp plate 1 into the workpiece fixture 7 of the workpiece rotation mechanism 4.

[0036] Preferably, the feeding assembly 12 includes a track 13, a slider 14, a shifting cylinder 15, and a feeding cylinder 16. The track 13 is arranged on the roller conveyor 11 and is horizontally arranged with the rotating roller 111. The slider 14 is slidably mounted on the track 13. The shifting cylinder 15 is arranged at one end of the track 13, and the power output end of the shifting cylinder 15 is connected to the slider 14. The feeding cylinder 16 is arranged on the slider 14, and the power output end of the feeding cylinder 16 is perpendicular to the rotating roller 111.

[0037] When the roller conveyor 11 is feeding material, the shifting cylinder 15 pulls the slider 14 on the track 13 to the side of the roller conveyor 11 without interfering with the conveyor 11's transport of the frozen clamp plate 1. The frozen clamp plate 1 enters the workpiece fixture 7. The arc-shaped induction coil 3 heats the frozen clamp plate 1 inside the workpiece fixture 7. After the frozen clamp plate 1 is fully heated, the arc-shaped induction coil 3 stops working. The shifting cylinder 15 pushes the slider 14 to the middle of the track 13. The pushing cylinder 16 faces the inlet of the workpiece fixture 7 and extends to push out the frozen clamp plate 1 inside the workpiece fixture 7. Then, the shifting cylinder 15 and the pushing cylinder 16 reset, ready to send the next frozen clamp plate 1 into the workpiece fixture 7 of the workpiece rotating mechanism 4.

[0038] Preferably, the top of the track 13 does not exceed the top of the roller 111.

[0039] The top of track 13 must not interfere with the conveying of the frozen clamp 1 by the roller 111.

[0040] The working process of this utility model is as follows: First, the freezing clamp 1 is placed on the rotating roller 111 of the roller conveyor 11. The freezing clamp 1 is sent into the heating chamber of the induction heating furnace body 2 and located in the workpiece fixture 7 of the workpiece rotation mechanism 4. The arc-shaped induction coil 3 heats the freezing clamp 1 in the workpiece fixture 7. After the freezing clamp 1 is fully heated, the arc-shaped induction coil 3 stops working. The shifting cylinder 15 of the pushing assembly 12 pushes the slider 14 to the middle of the track 13. The pushing cylinder 16 faces the inlet of the workpiece fixture 7. The pushing cylinder 16 extends to push out the freezing clamp 1 in the workpiece fixture 7. Then, the shifting cylinder 15 and the pushing cylinder 16 are reset, ready to send the next freezing clamp 1 into the workpiece fixture 7 of the workpiece rotation mechanism 4.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid heating device for processing frozen clamps for heavy-haul railways, wherein the frozen clamp (1) is thin at the edges and thick in the middle, characterized in that: The rapid heating device includes an induction heating furnace body (2), an arc-shaped induction coil (3), and a workpiece rotation mechanism (4). The arc-shaped induction coil (3) is horizontally arranged and symmetrically installed in the heating cavity of the induction heating furnace body (2). The workpiece rotation mechanism (4) is located at both ends of the induction heating furnace body (2). The workpiece mounting part of the workpiece rotation mechanism (4) is located in the heating cavity and between the two arc-shaped induction coils (3).

2. The rapid heating device for processing frozen steel plates for heavy-haul railways according to claim 1, characterized in that: The workpiece rotation mechanism (4) includes a motor (5), a rotating disk (6), and a workpiece fixture (7). The motor (5) is mounted on the induction heating furnace body (2). The rotating disks (6) are symmetrically arranged and rotatably mounted at both ends of the induction heating furnace body (2). The two ends of the workpiece fixture (7) are respectively connected to the two rotating disks (6). The power output end of the motor (5) is connected to one of the rotating disks (6) in a transmission connection.

3. The rapid heating device for processing frozen steel plates for heavy-haul railways according to claim 2, characterized in that: The workpiece fixture (7) is made of a non-metallic high-temperature resistant material.

4. The rapid heating device for processing frozen steel plates for heavy-haul railways according to claim 3, characterized in that: The workpiece fixture (7) includes an end plate (8) and a connecting rod (9), with several connecting rods (9) arranged in a ring and connected at both ends to two end plates (8).

5. The rapid heating device for processing frozen steel plates for heavy-haul railways according to claim 1, characterized in that: The arc length of the arc-shaped induction coil (3) is between the thickness and width of the freezing clamp (1).

6. The rapid heating device for processing frozen steel plates for heavy-haul railways according to claim 1, characterized in that: The induction heating furnace body (2) is provided with a feeding mechanism (10) at the feeding end. The feeding mechanism (10) includes a roller conveyor (11) and a pushing assembly (12). The pushing assembly (12) is mounted on the roller conveyor (11). The discharge end of the roller conveyor (11) and the working end of the pushing assembly (12) are both facing the feeding end of the induction heating furnace body (2).

7. The rapid heating device for processing frozen steel plates for heavy-haul railways according to claim 6, characterized in that: The pushing assembly (12) includes a track (13), a slider (14), a shifting cylinder (15), and a pushing cylinder (16). The track (13) is set on the roller conveyor (11) and is horizontally set with respect to the rotating roller (111). The slider (14) is slidably mounted on the track (13). The shifting cylinder (15) is set at one end of the track (13), and the power output end of the shifting cylinder (15) is connected to the slider (14). The pushing cylinder (16) is set on the slider (14), and the power output end of the pushing cylinder (16) is perpendicular to the rotating roller (111).

8. The rapid heating device for processing frozen steel plates for heavy-haul railways according to claim 7, characterized in that: The top of the track (13) does not exceed the top of the roller (111).

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