Deviation correcting device for stretching hot leveling section of oriented electrical steel

Abstract

The utility model relates to a deviation rectifying device for a stretching hot leveling section of oriented electrical steel, which is arranged between a drying furnace and a radiant tube heating furnace and comprises a deviation rectifying frame and a furnace bottom roller rotatably arranged on the deviation rectifying frame. The number of the furnace bottom roller is only one; the deviation rectifying frame comprises a main frame body; the rotary supporting structure is arranged at the bottom of the main frame body; the deviation rectifying driving device is used for driving the main frame body to rotate based on the rotary supporting structure, the deviation rectifying driving device is arranged at the bottom of the main frame body, and the rotary supporting structure and the deviation rectifying driving device are located on the two opposite sides of the bottom of the main frame body. According to the utility model, the deviation correction of the oriented electrical steel can be realized by only arranging one furnace bottom roller, and the furnace bottom roller has the characteristics of simple structure and small occupied space, and is particularly suitable for a stretching hot leveling section of the oriented electrical steel.

Description

Technical Field

[0001] The utility model relates to the technical field of oriented electrical steel production, in particular to a deviation correcting device for a stretching heat flattening section of oriented electrical steel. Background Art

[0002] In the production process of oriented electrical steel, due to multiple processes such as hot rolling, cold rolling, annealing, etc., a certain amount of residual stress will accumulate inside the material. The hot flattening section can release and homogenize the residual stress inside the steel plate by heating and applying tension. At the same time, the steel plate becomes flatter, improving the dimensional accuracy and appearance quality of the product, and providing a good foundation for subsequent processing and use.

[0003] However, as the speed of the strip continues to increase, the total length of the drying furnace is required to be continuously lengthened. In addition, due to the plate shape, the strip is prone to deviation in the drying furnace. Since the temperature between the drying furnace and the radiation tube heating furnace will reach between 600 and 1000°C, it is very easy to cause electrical steel processing defects. Therefore, it is necessary to correct the movement of the steel strip during the production process.

[0004] In order to solve the deviation problem, the Chinese invention patent with publication number CN117842751A discloses a strip roller correction device, including a base plate, a fixed shaft, a connecting plate, a telescopic rod, a bracket and two correction rollers, and the two correction rollers are used to manually adjust the axial direction of the correction rollers to achieve rapid correction; the Chinese utility model patent with publication number CN 210788613U discloses a galvanized strip three-roller correction device, including a base, a bearing seat and three correction rollers, and the three correction rollers are used to correct the deviation.

[0005] It can be seen that the deviation correction device in the prior art still has the following problems:

[0006] (1) Complex structure and cumbersome operation;

[0007] (2) The method of using multiple rollers in parallel for deviation correction occupies a large space and cannot be applied to the narrow space between the drying furnace and the radiant tube heating furnace;

[0008] (3) It is difficult to accurately control the angle used for correction, resulting in low accuracy or inability to complete correction. Utility Model Content

[0009] In order to solve the technical problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a correction device for the stretching hot flattening section of oriented electrical steel. Only one furnace bottom roller is required to realize the correction of oriented electrical steel. It has the characteristics of simple structure and small space occupation, and is particularly suitable for the stretching hot flattening section of oriented electrical steel.

[0010] In order to achieve the above-mentioned purpose of the utility model, the technical solution of the utility model is: a deviation correction device for the stretching heat flattening section of oriented electrical steel, the deviation correction device is arranged between the drying furnace and the radiant tube heating furnace, and includes a deviation correction frame and a furnace bottom roller rotatably arranged on the deviation correction frame; the furnace bottom roller has only one; the deviation correction frame includes:

[0011] Main frame;

[0012] A rotating support structure disposed at the bottom of the main frame;

[0013] A deviation correction driving device is used to drive the main frame to rotate based on the rotating support structure. The deviation correction driving device is arranged at the bottom of the main frame. The rotating support structure and the deviation correction driving device are located on opposite sides of the bottom of the main frame.

[0014] According to a technical solution of the utility model, the deviation correction driving device is a hydraulic cylinder, and the cylinder body of the hydraulic cylinder is rotatably arranged on the first base;

[0015] The extended end of the hydraulic cylinder is rotatably connected to the main frame.

[0016] According to a technical solution of the utility model, the main frame includes a first longitudinal frame, a second longitudinal frame and a transverse connecting frame arranged between the first longitudinal frame and the second longitudinal frame.

[0017] According to a technical solution of the utility model, a side connecting frame is further provided on the first longitudinal frame, and the extended end of the hydraulic cylinder is rotatably connected to the bottom end of the side connecting frame;

[0018] The side connecting frame is in a triangular structure.

[0019] According to a technical solution of the utility model, the extended end of the hydraulic cylinder is rotatably connected to the side connecting frame through a first short shaft;

[0020] The cylinder body of the hydraulic cylinder is rotatably connected to the first base via a second short shaft;

[0021] The first short axis and the second short axis are both perpendicular to the first base.

[0022] According to a technical solution of the utility model, the side connecting frame and the deviation correcting drive device are arranged on the outside of the first longitudinal frame.

[0023] According to a technical solution of the utility model, the fixed end of the rotating support structure is fixed to the second base, and the rotatable end is connected to the center position of the bottom end of the second vertical frame;

[0024] The bottom end of the second vertical frame is also provided with a universal wheel which moves on the second base.

[0025] According to a technical solution of the utility model, the bottom end of the first vertical frame is provided with running wheels that move on the first base.

[0026] According to a technical solution of the utility model, the furnace bottom roller is equipped with a driving motor, a supporting platform for fixing the driving motor is arranged on the top of the first longitudinal frame or the second longitudinal frame, and a reinforcing rib plate is arranged between the supporting platform and the first longitudinal frame or the second longitudinal frame.

[0027] According to a technical solution of the utility model, the furnace bottom roller is connected to the first longitudinal frame and / or the second longitudinal frame through a bearing and a bearing seat;

[0028] The furnace bottom roller is a water-cooled furnace bottom roller, and the bearing seat is a water-cooled bearing seat.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] The utility model discloses a deviation correction device for a stretching heat leveling section of oriented electrical steel. The utility model utilizes the characteristic of a long drying furnace in a stretching heat leveling process of the oriented electrical steel. When the strip steel passes through the drying furnace, the strip steel sags under the influence of its own gravity, thereby generating friction force when passing through a furnace bottom roller. Only one furnace bottom roller is provided to realize the deviation correction of the oriented electrical steel, which can greatly reduce the space occupied by the deviation correction device in a direction perpendicular to the furnace bottom roller. The utility model has the characteristics of simple structure and small space occupation, and is particularly suitable for the stretching heat leveling section of the oriented electrical steel.

[0031] By controlling the deviation correction drive device to realize the rotation of the main frame based on the rotating support structure, the operation process is simpler and more conducive to accurately controlling the deviation correction angle, thereby improving the deviation correction accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the drawings required for the implementation are briefly introduced below. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A three-dimensional diagram schematically showing a deviation-correcting device for a stretching heat-smoothing section of oriented electrical steel in an embodiment of the utility model;

[0034] Figure 2 A partial schematic diagram schematically showing a deviation-correcting device for a stretching heat-flattening section of oriented electrical steel in an embodiment of the utility model;

[0035] Figure 3 A partial schematic diagram schematically showing another angle of the deviation-correcting device for the stretching heat-flattening section of oriented electrical steel in an embodiment of the utility model;

[0036] Figure 4 A partial schematic diagram schematically showing another angle of the deviation correcting device for the stretching heat flattening section of oriented electrical steel in an embodiment of the utility model;

[0037] Figure 5 A schematic front view of a deviation-correcting device for a stretching heat-flattening section of oriented electrical steel in an embodiment of the utility model is shown;

[0038] Figure 6 A schematic top view of a deviation-correcting device for a stretching heat-flattening section of oriented electrical steel in an embodiment of the utility model;

[0039] Figure 7 A side view schematically shows a deviation-correcting device for a stretching heat-smoothing section of oriented electrical steel in an embodiment of the present utility model.

[0040] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0041] 1. Furnace bottom roller; 2. Main frame; 3. Rotating support structure; 4. Deviation correction drive device; 5. First base; 6. Second base; 7. Universal wheel; 8. Travel wheel; 9. Support platform; 10. Reinforcement rib plate; 21. First longitudinal frame; 22. Second longitudinal frame; 23. Transverse connecting frame; 24. Side connecting frame; 41. First short axis; 42. Second short axis. DETAILED DESCRIPTION

[0042] The description of the embodiments of this specification should be combined with the corresponding drawings, which should be considered as part of the complete specification. In the drawings, the shape or thickness of the embodiments may be enlarged and indicated for simplification or convenience. Furthermore, the parts of each structure in the drawings will be described separately. It is worth noting that the elements not shown in the drawings or not described in words are in a form known to ordinary technicians in the relevant technical field.

[0043] The description of the embodiments herein and any reference to directions and orientations are only for the convenience of description and are not to be construed as any limitation on the scope of protection of the present invention. The following description of the preferred embodiments may involve combinations of features, which may exist independently or in combination, and the present invention is not particularly limited to the preferred embodiments. The scope of the present invention is defined by the claims.

[0044] like Figures 1 to 7As shown, the utility model proposes a deviation correction device for the stretching heat flattening section of oriented electrical steel, which is arranged between a drying furnace and a radiation tube heating furnace, and comprises a deviation correction frame and a furnace bottom roller 1 rotatably arranged on the deviation correction frame; there is only one furnace bottom roller 1; the deviation correction frame comprises: a main frame body 2; a rotating support structure 3 arranged at the bottom of the main frame body 2;

[0045] A deflection correction drive device 4 is used to drive the main frame 2 to rotate based on the rotating support structure 3. The deflection correction drive device 4 is arranged at the bottom of the main frame 2. The rotating support structure 3 and the deflection correction drive device 4 are located on two opposite sides of the bottom of the main frame 2, preferably on two sides corresponding to the two ends of the furnace bottom roller 1.

[0046] During the stretching and hot flattening process of oriented electrical steel, the deviation correction device of the utility model is arranged between the drying furnace and the radiation tube heating furnace. When the oriented electrical steel deviates in the drying furnace, the deviation correction drive device 4 is used to correct the deviation according to the deviation situation. Specifically, under the action of the deviation correction drive device 4, the main frame 2 rotates based on the rotating support structure 3, that is, it rotates with the rotating support structure 3 as the center of the circle, adjusts the angle between the furnace bottom roller 1 and the strip steel, and realizes the deviation correction of the furnace bottom roller 1 on the oriented electrical steel.

[0047] The utility model has only one furnace bottom roller 1. When in use, the steel strip sags under the influence of its own gravity when passing through the drying furnace, so that friction can be generated when passing through the furnace bottom roller 1, so that a single roller can be used to transport and correct the steel strip. When one furnace bottom roller 1 is used, the space occupied by the correction device in the direction perpendicular to the furnace bottom roller 1 can be greatly reduced, and it is more suitable for the narrow space between the drying furnace and the radiation tube heating furnace.

[0048] The utility model utilizes the long length of the drying furnace in the stretching and hot flattening process of oriented electrical steel, and only one furnace bottom roller 1 is provided to realize the deviation correction of the oriented electrical steel. It has the characteristics of simple structure and small space occupation. At the same time, by controlling the deviation correction drive device 4, the main frame 2 is rotated based on the rotating support structure 3. Compared with the manual adjustment and the structure with movable ends, the operation process is simpler and more conducive to accurately controlling the deviation correction angle, thereby improving the deviation correction accuracy.

[0049] At the same time, the deviation correction drive device 4 can be controlled electronically, for example, by using sensors and control systems. The sensors are used to monitor the movement of the oriented electrical steel strip. The control system determines the deviation correction angle based on the movement feedback from the sensors. The rotation of the deviation correction device is controlled by controlling the movement of the hydraulic cylinder, and the deviation correction angle is controlled. This realizes the automation of deviation correction, improves production efficiency and work accuracy, reduces the complexity of manual operation, and makes the deviation correction process simpler and faster.

[0050] In some embodiments of the present utility model, the deviation correction driving device 4 is a hydraulic cylinder, and the cylinder body of the hydraulic cylinder is rotatably arranged on the first base 5;

[0051] The extended end of the hydraulic cylinder is rotatably connected to the main frame body 2.

[0052] The hydraulic cylinder can generate a large output force, and the power provided by the hydraulic cylinder is used to drive the movement of the main frame 2 to achieve the deviation correction function, while ensuring the stability of the strip transmission. More importantly, the hydraulic cylinder has stronger controllability.

[0053] When the hydraulic cylinder drives the main frame 2 to rotate, its extended end will also move with the main frame 2. The cylinder body of the hydraulic cylinder is hinged to the first base 5 and the extended end is hinged to the main frame 2, so that the rotation of the main frame 2 is smoother and has a larger rotation angle.

[0054] Among them, when the correcting device is in the initial position, the furnace bottom roller 1 is perpendicular to the moving direction of the strip steel, and the correcting drive device 4 is perpendicular to the furnace bottom roller 1. When the strip steel deviates, when the hydraulic cylinder is used as the correcting drive device 4, the protruding end of the hydraulic cylinder will extend or retract (it can be understood that the hydraulic cylinder is already in an extended state at the initial position) to complete the correction.

[0055] It is understandable that the deviation-correcting drive device 4 in the present invention can also be configured in other forms.

[0056] In some embodiments of the utility model, the main frame 2 includes a first longitudinal frame 21, a second longitudinal frame 22 and a transverse connecting frame 23 arranged between the first longitudinal frame 21 and the second longitudinal frame 22. The connection method between the transverse connecting frame 23 and the first longitudinal frame 21 and the second longitudinal frame 22 can be welding, etc. The main function of the transverse connecting frame 23 is to connect the first longitudinal frame 21 and the second longitudinal frame 22 together. The number of transverse connecting frames 23 is at least two, and at least one transverse connecting frame 23 is used to connect the bottom ends of the first longitudinal frame 21 and the second longitudinal frame 22, which can improve the stability of the main frame 2.

[0057] The structures of the first longitudinal frame 21 and the second longitudinal frame 22 may be the same or different. To improve stability, multiple steel columns may be welded to form the structures of the first longitudinal frame 21 and the second longitudinal frame 22. Figure 1 As shown, four steel columns are welded to form a first longitudinal frame 21, and the second longitudinal frame 22 has the same structure. Both ends of the four steel columns are connected by a connecting plate, which can reduce the gravity of the main frame 2 and is beneficial for the correction drive device 4 to drive the main frame 2 to rotate. The transverse connecting frame 23 is connected between the corresponding steel columns, which greatly improves the stability.

[0058] The main frame 2 can be assembled by only using steel columns, and has the characteristics of low cost and easy assembly.

[0059] In some embodiments of the utility model, a side connecting frame 24 is also provided on the first longitudinal frame 21, and the protruding end of the hydraulic cylinder is rotatably connected to the bottom end of the side connecting frame 24; the side connecting frame 24 and the correction drive device 4 are arranged on the outside of the first longitudinal frame 21, and the side connecting frame 24 has a triangular structure.

[0060] By setting a side connecting frame 24, the correcting drive device 4 and the connecting structure of the correcting drive device 4 are set on the side of the main frame 2, which is located on the outside of the first longitudinal frame 21 (the outside of the first longitudinal frame 21 refers to the side away from the main frame 2, or is understood as the side away from the strip steel). This can avoid interference between the main frame 2 and the correcting drive device 4 during movement, thereby ensuring the stability of the operation of the correcting device. In addition, the side connecting frame 24 is set on the outside of the first longitudinal frame 21, which is equivalent to extending the main frame 2, that is, increasing the force arm of the correcting drive device 4 on the main frame 2, so that the correcting drive device 4 can more easily adjust the angle of the main frame 2.

[0061] At the same time, the deviation correction drive device 4 and the side connecting frame 24 are both arranged on the outside of the first longitudinal frame 21, which can avoid occupying a larger space in the direction perpendicular to the furnace bottom roller 1, and is more suitable for the narrow space between the drying furnace and the radiation tube heating furnace.

[0062] like Figure 2 As shown, in some embodiments of the present invention, the extended end of the hydraulic cylinder is rotatably connected to the side connecting frame 24 through the first short shaft 41, the bottom surface of the side connecting frame 24 is connected to a boss, and a bearing is provided on the connecting boss and / or the extended end of the hydraulic cylinder, and the first short shaft 41 is rotated through the bearing;

[0063] The cylinder body of the hydraulic cylinder is rotatably connected to the first base 5 via the second short shaft 42. Similarly, the first base 5 and the cylinder body of the hydraulic cylinder are also provided with connecting bosses, at least one connecting boss is provided with a bearing, and the second short shaft 42 is rotated via the bearing; the connecting boss of the cylinder body of the hydraulic cylinder can be provided on the side of the cylinder body or on the bottom of the cylinder body.

[0064] Furthermore, the first short axis 41 and the second short axis 42 are both perpendicular to the first base 5 .

[0065] The end without the bearing is fixedly connected to the first short shaft 41 / the second short shaft 42.

[0066] like Figure 3 As shown, in some embodiments of the present invention, the fixed end of the rotating support structure 3 is fixed to the second base 6, and the rotatable end is connected to the bottom end of the second vertical frame 22, and is located at the center of the bottom end of the second vertical frame 22, or its position is on the same plane as the furnace bottom roller in the vertical direction;

[0067] The bottom end of the second vertical frame 22 is also provided with a universal wheel 7 that moves on the second base 6 .

[0068] When using the correction device of the present invention, the main frame 2 needs to rotate. Therefore, the rotating support structure 3 needs to have a rotation function and also needs to support the main frame 2. By using the universal wheel 7 at the bottom end of the second longitudinal frame 22 and the universal wheel 7 and the rotating support structure 3 to support the main frame 2 at the same time, the stability and reliability of the correction device can be greatly improved, and the service life of the rotating support structure 3 can be improved.

[0069] The rotary support structure 3 may be a rotary support bearing, etc., which can bear large axial and radial loads at the same time and can meet the working requirements of various deviation correction devices.

[0070] There are two universal wheels 7 located on both sides of the rotating support structure 3 . The rotating support structure 3 is located at the center of the bottom end of the second longitudinal frame 22 . When the main frame rotates based on the rotating support structure 3 , the universal wheels 7 move on the second base 6 .

[0071] In addition, the first base 5 and the second base 6 may be the same base, and the first base 5 and / or the second base 6 may also be the ground.

[0072] In some embodiments of the utility model, the bottom end of the first longitudinal frame 21 is provided with a running wheel 8 that moves on the first base 5. The running wheel 8 can be set as a universal wheel, or can be set according to the moving direction of the main frame 2. The running wheel 8 has the same function as the universal wheel 7 at the bottom end of the second longitudinal frame 22. The main function of the running wheel 8 is to support the main frame 2, avoid the problem that the deviation correction drive device 4 and its connection structure are subjected to greater pressure and fail, and improve the stability of the deviation correction device.

[0073] The running wheel 8 at the bottom of the first longitudinal frame 21 and the universal wheel 7 at the bottom of the second longitudinal frame 22 are both high temperature resistant wheels to adapt to high temperature conditions. Similarly, the running wheel 8 can also be set to two.

[0074] In some embodiments of the utility model, the furnace bottom roller 1 is equipped with a driving motor (not shown in the figure), a supporting platform 9 for fixing the driving motor is arranged on the top of the first longitudinal frame 21 or the second longitudinal frame 22, and a reinforcing rib plate 10 is arranged between the supporting platform 9 and the first longitudinal frame 21 or the second longitudinal frame 22.

[0075] The driving motor of the furnace bottom roller 1 is adapted to the conveying speed of the strip, which can avoid speed difference, prevent rolling up, and ensure the stability of thermal flattening.

[0076] In some embodiments of the present invention, the furnace bottom roller 1 is connected to the first longitudinal frame 21 and / or the second longitudinal frame 22 via bearings and bearing seats;

[0077] The hearth roller 1 is a water-cooled hearth roller, which can work in a high temperature environment and maintain stable performance. It is suitable for high temperature conditions in the process of electrical steel stretching and hot leveling. Secondly, the temperature of the hearth roller 1 is reduced by the water cooling system, which can reduce material fatigue and wear caused by high temperature and extend the service life of the hearth roller 1.

[0078] The bearing seat is a water-cooled bearing seat, which can effectively control the bearing temperature, reduce bearing wear, extend its service life, reduce bearing failures caused by high temperature, and improve the reliability of the entire correction device.

[0079] The above is an explanation of the implementation mode of the present application by specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of introducing the application in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present application. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details are omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0080] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "outside", "inside", "circumferential", "radial", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0081] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "fitting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0082] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A deviation-correcting device for the stretching heat-flattening section of oriented electrical steel, characterized in that: The deflection correction device is arranged between the drying furnace and the radiation tube heating furnace, and comprises a deflection correction frame and a furnace bottom roller (1) rotatably arranged on the deflection correction frame; the furnace bottom roller (1) has only one; the deflection correction frame comprises: Main frame (2); A rotating support structure (3) arranged at the bottom of the main frame (2); A deviation correction driving device (4) is used to drive the main frame (2) to rotate based on the rotating support structure (3), wherein the deviation correction driving device (4) is arranged at the bottom of the main frame (2), and the rotating support structure (3) and the deviation correction driving device (4) are located on two opposite sides of the bottom of the main frame (2).

2. The deviation correcting device for the stretching heat flattening section of oriented electrical steel according to claim 1, characterized in that: The deviation-correcting driving device (4) is a hydraulic cylinder, and the cylinder body of the hydraulic cylinder is rotatably arranged on the first base (5); The extended end of the hydraulic cylinder is rotatably connected to the main frame (2).

3. The deviation correcting device for the stretching heat flattening section of oriented electrical steel according to claim 2, characterized in that: The main frame (2) comprises a first longitudinal frame (21), a second longitudinal frame (22), and a transverse connecting frame (23) arranged between the first longitudinal frame (21) and the second longitudinal frame (22).

4. The deviation correcting device for the stretching heat flattening section of oriented electrical steel according to claim 3, characterized in that: The first longitudinal frame (21) is also provided with a side connecting frame (24), and the extended end of the hydraulic cylinder is rotatably connected to the bottom end of the side connecting frame (24); The side connecting frame (24) has a triangular structure.

5. The deviation correcting device for the stretching heat flattening section of oriented electrical steel according to claim 4, characterized in that: The extended end of the hydraulic cylinder is rotatably connected to the side connecting frame (24) via a first short shaft (41); The cylinder body of the hydraulic cylinder is rotatably connected to the first base (5) via a second short shaft (42); The first short axis (41) and the second short axis (42) are both perpendicular to the first base (5).

6. The deviation correcting device for the stretching heat flattening section of oriented electrical steel according to claim 4, characterized in that: The side connecting frame (24) and the deviation-correcting driving device (4) are arranged on the outside of the first longitudinal frame (21).

7. The deviation-correcting device for the stretching heat-flattening section of oriented electrical steel according to claim 3, characterized in that: The fixed end of the rotating support structure (3) is fixed on the second base (6), and the rotatable end is connected to the center position of the bottom end of the second vertical frame (22); The bottom end of the second vertical frame (22) is also provided with a universal wheel (7) that moves on the second base (6).

8. The deviation-correcting device for the stretching heat-flattening section of oriented electrical steel according to claim 7, characterized in that: The bottom end of the first vertical frame (21) is provided with a running wheel (8) that moves on the first base (5).

9. The deviation-correcting device for the stretching heat-flattening section of oriented electrical steel according to claim 3, characterized in that: The hearth roller (1) is equipped with a drive motor, a support platform (9) for fixing the drive motor is arranged on the top of the first longitudinal frame (21) or the second longitudinal frame (22), and a reinforcing rib plate (10) is arranged between the support platform (9) and the first longitudinal frame (21) or the second longitudinal frame (22).

10. The deviation correcting device for the stretching heat flattening section of oriented electrical steel according to claim 9, characterized in that: The hearth roller (1) is connected to the first longitudinal frame (21) and / or the second longitudinal frame (22) via bearings and bearing seats; The furnace bottom roller (1) is a water-cooled furnace bottom roller, and the bearing seat is a water-cooled bearing seat.

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