Tempering device for intelligently measuring tempering temperature of roller

Abstract

The invention discloses a tempering device for intelligently measuring the tempering temperature of a roller, which comprises a bracket, a cylindrical furnace body horizontally placed is erected on the bracket, and one end of the furnace body is provided with a split furnace cover capable of being opened and closed; the rotating shaft is rotationally arranged in the furnace body, one end of the rotating shaft is far away from the furnace cover and penetrates through the furnace body to the outside, and the end is connected with a driving motor; the plurality of laminating assemblies are arranged along the axial direction of the rotating shaft and are fixed on the rotating shaft, each laminating assembly comprises a rotating disc, a plurality of laminating assemblies and a plurality of laminating assemblies, the rotating disc is fixedly connected to the rotating shaft, and the laminating assemblies are arranged on the rotating shaft; the rollers are circumferentially distributed on the periphery of the rotary table and used for supporting the rollers; the heating device is arranged in a support below the furnace body, and a temperature sensor is arranged in the furnace body and used for monitoring temperature distribution in the furnace body and the tempering temperature of a roller in real time; the method has the advantages that heating and temperature control are efficient and accurate, the flexibility and adaptability are high, the tempering effect is optimized, and the roller performance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tempering devices, in particular to a tempering device for intelligently measuring the tempering temperature of a rolling mill roll. Background Art

[0002] As an important tool in the field of metal processing, the quality and performance of the roller directly determine the quality and production efficiency of metal rolled products. During the use of the roller, due to the huge pressure and friction, residual stress and microstructural changes will be generated, which will affect its service life and processing accuracy. In order to improve the performance of the roller and extend its service life, tempering treatment has become an indispensable process. Roller tempering is the process of heating the roller to a certain temperature, keeping it warm for a period of time, and then cooling it down at an appropriate speed. Through tempering treatment, the residual stress inside the roller can be eliminated or reduced, the microstructural structure can be optimized, and the toughness, hardness and wear resistance of the material can be improved, thereby improving the overall performance of the roller.

[0003] Roller tempering is mainly carried out in traditional box furnaces or pit furnaces. These furnaces usually stack the rolls in the furnace and heat the furnace through heating elements to make the rolls reach the predetermined tempering temperature.

[0004] Since the rolls are stacked in the furnace, the roll temperature near the heat source is higher, while the roll temperature far from the heat source is lower. This uneven temperature phenomenon will lead to inconsistent roll tempering effects. Some areas may be overburned or deformed due to excessive temperature, while some areas may fail to achieve the expected tempering effect due to insufficient temperature.

[0005] In addition, the residual stress inside the roll is complex and uneven, and it is difficult to completely release it by heating alone. During the tempering process, if the roll is in a stationary state, the stress inside it may not be fully released, thus affecting the tempering effect. In order to release the stress more effectively, a certain external force or vibration needs to be applied to promote microscopic plastic deformation and dislocation slip inside the roll.

[0006] Therefore, it is necessary to provide a tempering device for intelligently measuring the tempering temperature of the rolling mill roll to solve the problems raised in the above background technology. Summary of the invention

[0007] To achieve the above object, the present invention provides the following technical solution: a tempering device for intelligently measuring the tempering temperature of a rolling mill roll, comprising:

[0008] A bracket, on which a horizontally placed cylindrical furnace body is mounted, and one end of the furnace body is provided with an openable and closable split furnace cover;

[0009] A rotating shaft is rotatably disposed in the furnace body, one end of the rotating shaft is away from the furnace cover and penetrates the furnace body to the outside, and the end is connected to a driving motor;

[0010] A plurality of laminating components, the laminating components are arranged along the axial direction of the rotating shaft and fixed on the rotating shaft, each of the laminating components comprises:

[0011] A rotating disk, the rotating disk is fixedly connected to the rotating shaft;

[0012] Rollers, a plurality of which are circumferentially distributed on the periphery of the turntable and are used to support the rollers;

[0013] And, a heating device arranged in the bracket below the furnace body is used to heat the furnace body. A temperature sensor is arranged in the furnace body to monitor the temperature distribution in the furnace body and the tempering temperature of the rolling roller in real time to realize intelligent measurement and control.

[0014] Furthermore, a support ring is fixed at one end of the furnace body close to the furnace cover, and the rotating shaft is rotatably connected in the support ring.

[0015] Furthermore, an air inlet and an air outlet are respectively provided below the two ends of the furnace body, and the air inlet and the air outlet are connected to the heating device through a fan.

[0016] Furthermore, the fitting assembly also includes a slide rod, and a plurality of slide grooves extending radially are circumferentially distributed on both end surfaces of the turntable, a slide rod is slidably arranged in each slide groove, and the roller is rotatably arranged between the two slide rods on the two end surfaces of the turntable.

[0017] Furthermore, an inner shaft is slidably arranged inside the rotating shaft, and a plurality of through grooves are distributed circumferentially on the side wall of the rotating shaft corresponding to the position of each bonding component;

[0018] Each sliding rod on one end surface of the rotating disk is hinged with a connecting rod, and the other end of the connecting rod passes through a through slot and is hinged to the inner shaft.

[0019] Furthermore, a hole that can be penetrated by the inner shaft is opened in the center of the furnace cover, and the end of the inner shaft close to the furnace cover passes through the rotating shaft and extends outside the furnace cover. A telescopic cylinder is fixed to the end of the bracket close to the furnace cover, and the piston rod of the telescopic cylinder is rotatably connected to the inner shaft.

[0020] Furthermore, a plurality of wedge blocks are embedded in a circumferentially distributed manner in the inner wall of the furnace body at the corresponding position of each of the bonding components.

[0021] Furthermore, a spring washer is provided between one end of the inner shaft and the piston rod of the telescopic cylinder.

[0022] Furthermore, each of the wedge blocks can slidably penetrate the outer wall of the furnace body, and one side of the wedge block on the outer wall of the furnace body is an inclined surface.

[0023] Furthermore, a slip ring is threadedly connected to the outer wall of the furnace body corresponding to each circle of wedge blocks. The slip ring is made of magnetic material, and the wedge blocks are made of magnetic conductive material. One side of the slip ring fits with each wedge block of the same circle.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the present invention, through the design of the laminating assembly, the rollers both make circular motion and rotate in the furnace body. This dynamic heating method ensures that the surface and interior of the rollers are heated evenly, avoiding the problem of uneven heating that may be caused by traditional static heating, and significantly improving the heating efficiency and tempering quality. In addition, the rollers in the laminating assembly are connected to the inner shaft through a sliding rod and a connecting rod mechanism, so that the rollers can be radially adjusted according to rollers of different diameters, thereby achieving wide adaptability to rollers of different specifications.

[0026] In the present invention, during the tempering process, the roller moves in a circle around the furnace body between the rollers and generates vibrations. This dynamic process helps to release the residual stress inside the roller, improve the strength and toughness of the roller, and extend the service life of the roller. And by adjusting the embedding depth of the wedge block and the speed of the driving motor, the vibration amplitude and frequency of the roller in the furnace body can be flexibly controlled, meeting the tempering treatment requirements of different materials and process requirements.

[0027] In the present invention, the air in the furnace body forms a circulation flow through the fan, which improves the heating efficiency and reduces energy consumption. At the same time, by adjusting the power of the heating device or introducing external cold air, rapid and accurate cooling can be achieved, further improving energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a tempering device for intelligently measuring the tempering temperature of a rolling mill roll;

[0029] Figure 2 It is a schematic diagram of the half-section structure inside the furnace body;

[0030] Figure 3 It is a schematic diagram of the half-section structure of the bonding component;

[0031] Figure 4 It is a schematic diagram of the overall structure of the bonding component;

[0032] Figure 5 It is a schematic diagram of the projection plane structure of the bonding component;

[0033] In the figure: 1. bracket; 2. furnace body; 21. air inlet; 22. air outlet; 3. furnace cover; 4. rotating shaft; 41. through slot; 5. driving motor; 6. fitting component; 61. turntable; 62. roller; 63. slide slot; 64. slide rod; 65. connecting rod; 7. inner shaft; 8. telescopic cylinder; 9. support ring; 10. wedge block; 11. slip ring; 12. spring gasket. DETAILED DESCRIPTION

[0034] See also Figure 1-Figure 5 In an embodiment of the present invention, a tempering device for intelligently measuring the tempering temperature of a rolling mill roll includes:

[0035] A support 1, on which a horizontally placed cylindrical furnace body 2 is mounted, and one end of the furnace body 2 is provided with an openable and closable split furnace cover 3;

[0036] A rotating shaft 4 is rotatably disposed in the furnace body 2, one end of the rotating shaft 4 is away from the furnace cover 3 and penetrates the furnace body 2 to the outside, and the end is connected to a driving motor 5;

[0037] A plurality of laminating components 6 are arranged along the axial direction of the rotating shaft 4 and fixed on the rotating shaft 4. Each of the laminating components 6 includes:

[0038] A rotating disk 61, wherein the rotating disk 61 is fixedly connected to the rotating shaft 4;

[0039] Rollers 62, a plurality of rollers 62 are circumferentially distributed on the periphery of the turntable 61, and are used to support the rollers;

[0040] In addition, a heating device arranged in the bracket 1 below the furnace body 2 is used to heat the furnace body 2. A temperature sensor is arranged in the furnace body 2 to monitor the temperature distribution in the furnace body 2 and the tempering temperature of the rolling roller in real time to realize intelligent measurement and control.

[0041] Among them, the rollers to be tempered are placed in the furnace body 2 through the furnace cover 3 and distributed between two adjacent rollers 62. When the driving motor 5 drives the rotating shaft 4 to rotate, each roller is driven to make a circular motion in the furnace body 2. At the same time, each roller rotates under the action of the roller 62 to achieve dynamic and uniform heating of the roller. This dynamic heating method ensures that the surface of the roller is heated evenly, avoids uneven heating caused by being close to or far away from the heat source, thereby improving the tempering quality and the performance of the roller.

[0042] In this embodiment, a support ring 9 is fixed at one end of the furnace body 2 close to the furnace cover 3, and the rotating shaft 4 is rotatably connected in the support ring 9, so as to support the end of the rotating shaft 4 away from the driving motor 5.

[0043] In this embodiment, an air inlet 21 and an air outlet 22 are respectively provided below the two ends of the furnace body 2, and the air inlet 21 and the air outlet 22 are connected to the heating device through a fan. That is to say, driven by the fan, the air in the furnace body 2 can form a circulation flow, and when the heating device heats the flowing air, the temperature in the furnace body 2 can rise rapidly; conversely, when the temperature in the furnace needs to be lowered, rapid cooling can be achieved by adjusting the power of the heating device or introducing external cold air after appropriate pretreatment to avoid excessive impact on the temperature in the furnace. This circulation design enables the temperature in the furnace body 2 to respond quickly to the control command, realize fast and accurate adjustment, and can significantly reduce the temperature gradient in the furnace body, improve temperature uniformity, and further improve the tempering quality.

[0044] In this embodiment, the bonding component 6 also includes a slide rod 64, and a plurality of radially extending slide grooves 63 are circumferentially distributed on the two end surfaces of the turntable 61, and a slide rod 64 is slidably arranged in each of the slide grooves 63, and the roller 62 is rotatably arranged between the two slide rods 64 on the two end surfaces of the turntable 61.

[0045] That is to say, the radial position of the roller 62 can be changed by sliding the slide rod 64, so as to adapt to the rollers with different diameters.

[0046] In this embodiment, an inner shaft 7 is slidably disposed in the rotating shaft 4, and a plurality of through grooves 41 are distributed circumferentially on the side wall of the rotating shaft 4 corresponding to the position of each fitting component 6;

[0047] Each sliding rod 64 on one end surface of the rotating disk 61 is hinged with a connecting rod 65 , and the other end of the connecting rod 65 passes through the through slot 41 and is hinged to the inner shaft 4 .

[0048] That is to say, by sliding the inner shaft 7, the connecting rod 65 can drive the corresponding sliding rod 64 to slide, so that each roller 62 slides in the radial direction, so that the roller 62 can quickly fit into the rollers of different diameters.

[0049] In this embodiment, a hole that can be penetrated by the inner shaft 7 is opened in the center of the furnace cover 3, and the end of the inner shaft 7 close to the furnace cover 3 passes through the rotating shaft 4 and extends outside the furnace cover 3. A telescopic cylinder 8 is fixed to the end of the bracket 1 close to the furnace cover 3, and the piston rod of the telescopic cylinder 8 is rotatably connected to the inner shaft 7.

[0050] The inner shaft 7 can be driven to slide by the extension and retraction of the telescopic cylinder 8 .

[0051] In this embodiment, a plurality of wedge blocks 10 are embedded in a circumferentially distributed manner in the inner wall of the furnace body 2 at a position corresponding to each of the laminating components 6 .

[0052] That is to say, when the roller makes a circular motion around the furnace body 2 between the rollers 62, it will fit onto the raised wedge block 10, which can not only increase the friction to ensure that the roller can rotate, but also make the roller vibrate during the circular motion. Applying vibration during tempering is conducive to releasing residual stress. Due to the micro-plastic deformation caused by the dislocation slip inside the metal material during the vibration process, this micro-plastic deformation will release the high residual stress and eliminate or reduce stress concentration.

[0053] In this embodiment, a spring washer 12 is further provided between one end of the inner shaft 7 and the piston rod of the telescopic cylinder 8 .

[0054] The presence of the spring washer 12 allows the inner shaft 7 to slide slightly when the telescopic cylinder 8 is stationary, so that the roller 62 can also move slightly to adapt to the vibration of the roller under the action of the wedge block 10.

[0055] In this embodiment, each of the wedge blocks 10 can slidably penetrate the outer wall of the furnace body 2, and one side of the wedge block 10 on the outer wall of the furnace body 2 is an inclined surface.

[0056] In this embodiment, a slip ring 11 is threadedly connected to the outer wall of the furnace body 2 corresponding to each circle of wedge blocks 10. The slip ring 11 is made of magnetic material, and the wedge blocks 10 are made of magnetic conductive material. One side of the slip ring 11 fits with each wedge block 10 of the same circle.

[0057] That is, the axial position of the slip ring can be changed by rotating the slip ring 11, thereby changing the depth of the wedge 10 embedded in the furnace body 2. By changing the depth of the wedge 10 embedded, the amplitude of the roller moving in a circle around the furnace body 2 between the rollers 62 can be adjusted. In addition, the vibration frequency of the roller can be adjusted by adjusting the speed of the drive motor 5. In practical applications, the frequency, amplitude, and duration of the vibration can be adjusted and optimized according to specific conditions to achieve the best stress release effect.

[0058] The specific implementation includes:

[0059] Put the rolls to be tempered into the furnace body 2 in sequence, ensure that each roll is located between two adjacent rollers 62 and remains stable, close and lock the furnace cover 3 to ensure that the inside of the furnace body 2 is sealed, start the drive motor 5, drive the laminating assembly 6 and the roller 62 to rotate through the rotating shaft 4, and then drive the roll to make a circular motion in the furnace body 2, and at the same time, the roll rotates under the action of the roller 62 to achieve dynamic and uniform heating;

[0060] The temperature distribution in the furnace and the tempering temperature of the rolls are monitored in real time by the temperature sensor in the furnace body 2 to ensure that the temperature is controlled within the preset range. According to the feedback from the temperature sensor, the temperature in the furnace is adjusted by adjusting the power of the heating device or introducing external cold air to achieve fast and accurate adjustment.

[0061] In addition, according to the material and tempering requirements of the roll, the depth of the wedge 10 embedded in the furnace body 2 can be adjusted by rotating the slip ring 11, thereby changing the amplitude of the roll when it moves in a circle around the furnace body 2 between the rollers 62, and changing the frequency of the roll vibration by adjusting the speed of the drive motor 5;

[0062] When the rollers reach the preset tempering temperature and time, first stop the rotation of the drive motor 5, then turn off the heating device, and after the temperature inside the furnace body 2 drops to a safe range, open the furnace cover 3 and take out the tempered rollers one by one.

[0063] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tempering device for intelligently measuring the tempering temperature of a rolling mill roll, characterized in that: include: A support (1), wherein a cylindrical furnace body (2) placed horizontally is mounted on the support (1), and an openable and closable split furnace cover (3) is provided at one end of the furnace body (2); A rotating shaft (4) is rotatably disposed in the furnace body (2), one end of the rotating shaft (4) is away from the furnace cover (3) and passes through the furnace body (2) to the outside, and the end is connected to a driving motor (5); A plurality of laminating components (6), wherein the laminating components (6) are arranged along the axial direction of the rotating shaft (4) and fixed on the rotating shaft (4), and each of the laminating components (6) comprises: A rotating disk (61), wherein the rotating disk (61) is fixedly connected to the rotating shaft (4); Rollers (62), a plurality of rollers (62) are circumferentially distributed on the periphery of the turntable (61) and are used to support the rollers; And, a heating device arranged in the bracket (1) below the furnace body (2) is used to heat the furnace body (2), and a temperature sensor is arranged in the furnace body (2) to monitor the temperature distribution in the furnace body (2) and the tempering temperature of the roller in real time, so as to realize intelligent measurement and control.

2. A tempering device for intelligently measuring the tempering temperature of a roll according to claim 1, characterized in that: A support ring (9) is fixed at one end of the furnace body (2) close to the furnace cover (3), and the rotating shaft (4) is rotatably connected in the support ring (9).

3. The tempering device for intelligently measuring the tempering temperature of a roll according to claim 1, characterized in that: An air inlet (21) and an air outlet (22) are respectively arranged below the two ends of the furnace body (2), and the air inlet (21) and the air outlet (22) are connected to the heating device via a fan.

4. The tempering device for intelligently measuring the tempering temperature of a roll according to claim 1, characterized in that: The laminating assembly (6) further comprises a slide bar (64), and a plurality of slide grooves (63) extending radially are circumferentially distributed on both end surfaces of the turntable (61), and a slide bar (64) is slidably arranged in each of the slide grooves (63), and the roller (62) is rotatably arranged between the two slide bars (64) on the two end surfaces of the turntable (61).

5. A tempering device for intelligently measuring the tempering temperature of a roll according to claim 4, characterized in that: An inner shaft (7) is slidably disposed inside the rotating shaft (4), and a plurality of through grooves (41) are distributed circumferentially on the side wall of the rotating shaft (4) corresponding to the position of each bonding component (6); Each sliding rod (64) on one end surface of the rotating disk (61) is hingedly connected to a connecting rod (65), and the other end of the connecting rod (65) passes through the through slot (41) and is hingedly connected to the inner shaft (4).

6. A tempering device for intelligently measuring the tempering temperature of a roll according to claim 5, characterized in that: A hole capable of being penetrated by the inner shaft (7) is provided at the center of the furnace cover (3); the end of the inner shaft (7) close to the furnace cover (3) passes through the rotating shaft (4) and extends outside the furnace cover (3); a telescopic cylinder (8) is fixed to the end of the bracket (1) close to the furnace cover (3); and the piston rod of the telescopic cylinder (8) is rotatably connected to the inner shaft (7).

7. The tempering device for intelligently measuring the tempering temperature of a roll according to claim 1, characterized in that: A plurality of wedge blocks (10) are embedded in a circumferentially distributed manner in the inner wall of the furnace body (2) at a position corresponding to each of the laminating components (6).

8. The tempering device for intelligently measuring the tempering temperature of a roll according to claim 6, characterized in that: A spring washer (12) is also provided between one end of the inner shaft (7) and the piston rod of the telescopic cylinder (8).

9. The tempering device for intelligently measuring the tempering temperature of a roll according to claim 7, characterized in that: Each of the wedge blocks (10) can slidably penetrate the outer wall of the furnace body (2), and one side of the wedge block (10) on the outer wall of the furnace body (2) is an inclined surface.

10. A tempering device for intelligently measuring the tempering temperature of a roll according to claim 9, characterized in that: A slip ring (11) is threadedly connected to the outer wall of the furnace body (2) corresponding to each circle of wedge blocks (10); the slip ring (11) is made of a magnetic material, and the wedge blocks (10) are made of a magnetic conductive material; one side of the slip ring (11) is in contact with each wedge block (10) of the same circle.

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