Straightening roll bilateral driving device and straightening machine

Abstract

The invention discloses a straightening roll double-side driving device and a straightening machine, and relates to the technical field of rolling finishing equipment.The straightening roll double-side driving device comprises a driving rack which is provided with two bearing platforms and used for being arranged on the two sides of a straightening machine rack in the axis direction of a straightening roll; the two groups of transmission distribution boxes are respectively mounted on the two bearing platforms; the transmission distribution box is provided with an input end and a plurality of synchronous transmission output ends; the output ends of the two transmission distribution boxes are at least partially arranged correspondingly, and the two corresponding output ends of the two transmission distribution boxes are used for being connected to the two ends of the same straightening roller in a synchronous transmission mode respectively. The input ends of the two transmission distribution boxes are in synchronous transmission connection; and the rotation driving mechanism is arranged on any bearing platform, and the output end of the rotation driving mechanism is in transmission connection with the input end of the transmission distribution box on the corresponding bearing platform, so that the roller diameter of a single straightening roller can be reduced, a wave-shaped plate is straightened, the roller bending driving force is reduced, resources are saved, and development to high-precision end equipment is facilitated.

Description

Technical Field

[0001] This invention relates to the field of rolling finishing equipment technology, and in particular to a double-sided drive device for straightening rolls and a straightening machine. Background Technology

[0002] With the rapid development of the automotive and aerospace industries, the demand for high-strength, wide-width, lightweight materials is increasing. However, thin-gauge high-strength steel sheets are prone to twisting and deformation during rolling and cooling, resulting in defects such as bending, edge waviness, and center waviness. Current straightening equipment cannot meet the straightening requirements for high-strength thin sheets. In particular, as strength increases, the power required by the straightening equipment increases, leading to larger straightening roller diameters, making it difficult to achieve roller bending and straighten waviness defects. Furthermore, while smaller roller diameters provide better straightening for high-strength sheets, single-sided drive and small roller diameters result in larger rotation angles, causing uneven stress on the longitudinal surface of the sheet, leading to additional defects and hindering finishing processes, thus affecting sheet precision. Moreover, single-sided drive transmits large torques, requiring friction couplings that are too bulky and cannot provide overload protection. Additionally, high-strength steel straightening equipment is bulky and difficult to change rollers. Summary of the Invention

[0003] The purpose of this invention is to provide a double-sided drive device for straightening rollers and a straightening machine to solve the problems existing in the prior art. It can reduce the diameter of a single straightening roller, reduce the driving force of the bending roller for straightening corrugated plates, save resources, achieve low carbon effect, and is conducive to the development of high-precision equipment.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides a double-sided driving device for a straightening roller, comprising: The drive frame has two support platforms, which are arranged on both sides of the straightening machine frame along the axial direction of the straightening roller; The transmission distribution box has two sets and is respectively installed on the two bearing platforms; the transmission distribution box has an input end and multiple synchronous transmission output ends; each output end on the two transmission distribution boxes is at least partially corresponding, and the corresponding two output ends on the two transmission distribution boxes are respectively used for synchronous transmission connection to both ends of the same straightening roller; the input ends of the two transmission distribution boxes are synchronously connected. A rotation drive mechanism is mounted on any of the aforementioned support platforms, and its output end is connected to the input end of the transmission distribution box on the corresponding support platform.

[0005] Optional, also includes: A synchronous shaft is rotatably mounted between the two bearing platforms, and the synchronous shaft is synchronously connected to the input end of each of the transmission distribution boxes, and the output end of the rotation drive mechanism is connected to the synchronous shaft.

[0006] Optionally, the middle part of the synchronous shaft is rotatably mounted on the straightening machine frame, with its two ends extending out from both sides of the straightening machine frame and synchronously connected to the input end of each of the transmission distribution boxes.

[0007] Optionally, the input end of the transmission distribution box includes an input transmission component, which has two input ends. One input end of the input transmission component is connected to one end of the synchronous shaft, and the other input end of the input transmission component is connected to the output end of the rotary drive mechanism.

[0008] Optionally, the rotation drive mechanism includes a drive motor and a reducer, and the output end of the drive motor is connected to the input end of the corresponding transmission distribution box through the reducer.

[0009] Optionally, a universal joint mechanism is connected between the output end of the transmission distribution box and the end of the straightening roller.

[0010] Optionally, the universal joint mechanism may employ, but is not limited to, a universal coupling.

[0011] Optionally, at least one of the transmission distribution boxes is provided with an overload protector on the transmission path from its output end to the corresponding universal joint transmission mechanism.

[0012] Optionally, the overload protector may be, but is not limited to, a friction coupling.

[0013] A straightening machine is also provided, comprising: The straightening machine frame is equipped with a straightening roller system and an adjustment mechanism; the straightening roller system includes multiple straightening rollers arranged in parallel; the adjustment mechanism is used to drive the straightening roller system to adjust its position. As described above, the double-sided drive device for the straightening roller has two bearing platforms on the two sides of the straightening machine frame along the axial direction of the straightening roller, and the two bearing platforms are provided with transmission distribution boxes, the corresponding two output ends of which are used for synchronous transmission connection to both ends of the same straightening roller.

[0014] The present invention achieves the following technical effects compared to the prior art: This invention discloses a dual-sided drive device for straightening rollers. Power is synchronously transmitted to the input ends of two transmission distribution boxes via a rotational drive mechanism. The power is then transmitted from the input ends of the transmission distribution boxes to their respective output ends. The corresponding output ends of the two transmission distribution boxes are respectively connected to the two ends of the same straightening roller, synchronously driving the straightening roller to achieve dual-sided synchronous drive. Compared to existing single-sided drive straightening machines, this invention, by synchronously driving the straightening rollers on both sides, reduces the torque requirements of single-sided drive straightening rollers without reducing the total power input. This avoids the need to strengthen the roller neck and body to withstand the large torque on one side, allowing for the use of straightening rollers with smaller diameters. Simultaneously, under the same driving force, the design allows for a reduction in the diameter of individual straightening rollers. For straightening corrugated plates, this reduces the driving force of the bending rollers, saving resources and achieving a low-carbon effect, which is beneficial for the development of high-precision equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the overall structure of the straightening machine in an example disclosed in this invention; Figure 2 This is a front view of the overall structure of a straightening machine in an example disclosed in this invention; Figure 3 This is a side view of the overall structure of the straightening machine in an example disclosed in this invention; Among them, 1-bearing platform, 2-straightening machine frame, 3-drive motor, 4-reducer, 5-drive distribution box, 6-overload protector, 7-universal drive mechanism, 8-synchronous shaft, 9-upper housing, 10-adjustment mechanism, 11-straightening roller system, 12-straightening machine column, 13-lower housing. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The purpose of this invention is to provide a double-sided drive device for straightening rollers and a straightening machine to solve the problems existing in the prior art. It can reduce the diameter of a single straightening roller, reduce the driving force of the bending roller for straightening corrugated plates, save resources, achieve low carbon effect, and is conducive to the development of high-precision equipment.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 3 As shown, the present invention provides a double-sided driving device for a straightening roller, including a drive frame, a transmission distribution box 5, and a rotation drive mechanism. The drive frame is provided with two bearing platforms 1, which are arranged on both sides of the straightening machine frame 2 along the axial direction of the straightening roller. Two sets of transmission distribution boxes 5 are provided and respectively installed on the two bearing platforms 1. The transmission distribution box 5 is provided with an input end and multiple synchronous transmission output ends. Each output end on the two transmission distribution boxes 5 is at least partially corresponding, and the corresponding two output ends on the two transmission distribution boxes 5 are respectively used for synchronous transmission connection to both ends of the same straightening roller. The input ends of the two transmission distribution boxes 5 are synchronously connected. The rotation drive mechanism is arranged on any one of the bearing platforms 1, and its output end is connected to the input end of the corresponding transmission distribution box 5 on the bearing platform 1.

[0021] The present invention discloses a dual-sided drive device for straightening rollers. Power is synchronously transmitted to the input ends of two transmission distribution boxes 5 via a rotational drive mechanism, and then from the input ends of the transmission distribution boxes 5 to their respective output ends. The corresponding output ends of the two transmission distribution boxes 5 are respectively connected to the two ends of the same straightening roller to synchronously drive the straightening roller, thus achieving dual-sided synchronous drive of the straightening roller. Compared to the single-sided drive straightening machine in the prior art, the present invention, by using dual-sided synchronous drive of the straightening roller, reduces the torque requirement of the single-sided drive straightening roller without reducing the total power input. This avoids the need to strengthen the roller neck and roller body to withstand the huge torque on one side, thus allowing the use of straightening rollers with smaller diameters. Simultaneously, under the same driving force, the design allows for a reduction in the diameter of a single straightening roller. For straightening corrugated plates, this reduces the driving force of the bending roller, saves resources, achieves a low-carbon effect, and is conducive to the development of high-precision equipment.

[0022] It should be further explained that the formula for calculating the total torque of the straightening rollers is... Under the same material and straightening process, the result is Because the torque on one side is halved, the diameter of the straightening roller can be reduced to [missing value]. This reduces the waste of materials used in the manufacturing of straightening machines. Among them, The yield stress of the material, The Young's modulus of the material. The width of the board to be straightened. The thickness of the sheet material to be straightened. To straighten the roller diameter, This is the plastic deformation conversion factor.

[0023] It is understandable that, since the input ends of the two transmission distribution boxes 5 are synchronously connected, the driving torque acting on the straightening roller is naturally evenly distributed. Therefore, the torque transmitted to both ends of the straightening roller through each output end of the transmission distribution box 5 is half of the total torque required to drive the straightening roller. In the existing single-sided drive straightening machine technology, a single transmission shaft is used to independently transmit the total torque required to drive the straightening roller. Since the torque transmitted to both ends of the straightening roller through each output end of the transmission distribution box 5 in this invention is half of the total torque required to drive the straightening roller, if a transmission shaft is used to connect the output end of the transmission distribution box 5 to the end of the straightening roller, its diameter can be significantly reduced compared to the prior art, thereby achieving a lightweight transmission structure and reducing costs.

[0024] In this embodiment, the formula for calculating the rotation angle of a circular shaft is as follows: During the same torque transmission process, dual-sided drive reduces the rotation angle by 1 / 2 compared to single-sided transmission. If a drive shaft is used to connect the output end of the transmission distribution box 5 to the end of the straightening roller, the safety of the drive shaft is greatly improved. Torque transmission Torsional stiffness of a circular shaft The length of the drive shaft. This can solve the problem in existing technologies where small roller diameters cause large rotation angles, resulting in uneven stress on the longitudinal surface of the sheet material, causing additional defects, making it difficult to achieve finishing processes, and thus affecting the precision of the sheet material.

[0025] Furthermore, in this embodiment, the dual-sided drive straightening rollers reduce the rigidity requirements of the straightening rollers, including the drive shaft, thereby reducing the overall weight of the straightening roller system 11. This facilitates personnel operation, improves efficiency, and enhances personnel safety during the straightening roller system 11 installation. Moreover, the dual-sided drive straightening rollers allow for the transmission of power to the straightening rollers from both sides, achieving the rigidity requirements of a small roller diameter and long wheelbase, and meeting the performance requirements for straightening accuracy of high-width, high-strength strip materials.

[0026] To streamline the roll changing process, a support platform 1 without a rotary drive mechanism is movably mounted on the straightening machine frame 2 along the axis of the straightening roll. For example, a frame guide rail is installed on the straightening machine frame 2, and the support platform 1 is slidably mounted on the frame guide rail and detachably secured using bolts or similar means. Specifically, this support platform 1, its associated transmission distribution box 5, and the bearing seats of all the straightening rolls connected to it can be integrated into a single module. During roll changing, simply loosen the connection between the transmission distribution box 5 and the straightening roll head, and the entire module can be horizontally pulled out along the frame guide rail. This transforms the complex online roll changing operation into a simple, integrated lifting operation, which is extremely time-efficient and convenient. Furthermore, it allows for easy replacement of straightening rolls of the required specifications, fulfilling various straightening roll requirements.

[0027] Based on the above embodiments, the transmission distribution box 5 can be a gearbox or the like, with multiple bevel gears, multiple right-angle cylindrical gear pairs and multiple transmission shafts inside, but not limited to the aforementioned transmission components. It can synchronously output multiple outputs from one input end through gear meshing or transmission shaft transmission, and can also realize transmission connection with the rotation drive mechanism and transmission connection with the straightening roller, etc.

[0028] For the synchronous transmission of the input ends of the two transmission distribution boxes 5, synchronous gears or synchronous belts can be used. In a specific embodiment, the double-sided drive device for the straightening roller disclosed in this invention also includes a synchronous shaft 8, which is rotatably installed between the two bearing platforms 1. The synchronous shaft 8 is synchronously connected to the input ends of each transmission distribution box 5, and the output end of the rotation drive mechanism is connected to the synchronous shaft 8 so that the torque output by the rotation drive mechanism is transmitted to the input ends of each transmission distribution box 5 through the synchronous shaft 8, and then the output ends of the transmission distribution boxes 5 synchronously transmit torque to both ends of the straightening roller.

[0029] The middle portion of the synchronous shaft 8 is rotatably mounted on the straightener frame 2, with its two ends extending out from both sides of the straightener frame 2 and synchronously connected to the input ends of each transmission distribution box 5. This establishes a stable rotational reference for the entire transmission structure. The middle portion of the synchronous shaft 8 constrains its main position, effectively preventing bending and torsional deformation when transmitting large torques, thus ensuring that the rotation center heights at both ends of the synchronous shaft 8 are consistently stable. Furthermore, since the straightening roller system 11 is generally installed in the middle of the straightener frame 2, and the transmission distribution boxes 5 are correspondingly located at both ends of the straightening roller system 11, rotatably mounting the middle portion of the synchronous shaft 8 on the straightener frame 2 allows for torque transmission to the straightening rollers or directly to the transmission distribution boxes 5 using a small number of transmission components. This avoids the need for redundant transmission components to complete torque transmission between the synchronous shaft 8 and the transmission distribution boxes 5 if the synchronous shaft 8 is located on the outside of the straightener frame 2.

[0030] Based on the above embodiments, the input end of the transmission distribution box 5 includes an input transmission component. The input transmission component has two input ends, one of which is connected to one end of the synchronous shaft 8, and the other input end is connected to the output end of the rotary drive mechanism. It can be understood that in this invention, the transmission structure in the transmission distribution box 5, i.e., the input transmission component, is used to complete the transmission connection between the rotary drive mechanism and the synchronous shaft 8. This eliminates the need for other transmission mechanisms, which still require the transmission distribution box 5, inevitably complicating the transmission structure.

[0031] To increase the driving torque, the rotation drive mechanism includes a drive motor 3 and a reducer. The output end of the drive motor 3 is connected to the input end of the corresponding transmission distribution box 5 through the reducer. The output of the drive motor 3 is amplified and reduced in torque by the reducer. Specifically, when the drive motor 3 starts, the torque is amplified by the reducer and drives the transmission components and straightening rollers inside the transmission distribution box 5.

[0032] To compensate for the angular and axial displacements generated during the adjustment of the straightening rollers, a universal joint mechanism 7 is connected between the output end of the transmission distribution box 5 and the end of the straightening roller. The output end of each transmission distribution box 5 is not directly connected to the straightening roller, but rather connected via the universal joint mechanism 7. Furthermore, the universal joint mechanism 7 employs, but is not limited to, a universal coupling, and may include a splined telescopic sleeve to compensate for the angular and axial displacements generated during the adjustment of the straightening rollers.

[0033] It is also understandable that the universal drive mechanism 7, due to its angular and axial compensation capabilities, will automatically disengage during the roller changing process and when the entire bearing platform 1, which is not equipped with a rotation drive mechanism, is pulled out, thus ensuring the convenience of roller changing.

[0034] To achieve overload protection, at least one transmission distribution box 5 is equipped with an overload protector 6 on the transmission path from its output end to its corresponding universal joint transmission mechanism 7. In this embodiment, the overload protector 6 adopts, but is not limited to, a friction coupling. It can be understood that when the load is normal, the friction coupling is in a closed state and rigidly transmits torque. When an overload occurs and the transmitted torque exceeds its preset slip torque value, relative sliding occurs between the friction plates, the power transmission is cut off or significantly attenuated, and the equipment alarms and stops, thereby playing a protective role and protecting valuable components such as the motor, reducer 4, gearbox, transmission shaft, and straightening roller from damage.

[0035] In one specific implementation, an overload protector 6 is provided between the output end of any transmission distribution box 5 and its corresponding universal transmission mechanism 7, so as to fully play the role of overload protection.

[0036] Furthermore, it can be understood that, combined with the dual-side drive method adopted in this invention, compared with the previous single-side drive straightening machine, this invention can reduce the torque requirement of single-side transmission without reducing the total power input. Even with the use of friction couplings and an overload protection coefficient of 0.7, the input drive can be 1.4 times that of single-side drive.

[0037] A straightening machine is also provided, including a straightening machine frame 2 and a double-sided straightening roller drive device. The straightening machine frame 2 is provided with a straightening roller system 11 and an adjustment mechanism 10. The straightening roller system 11 includes multiple straightening rollers arranged in parallel. The adjustment mechanism 10 is used to drive the straightening roller system 11 to adjust its position. The double-sided straightening roller drive device drives two bearing platforms 1 of the frame, which are arranged on both sides of the straightening machine frame 2 along the axial direction of the straightening roller. The two bearing platforms 1 are provided with transmission distribution boxes 5, and their corresponding two output ends are used to synchronously drive and connect to both ends of the same straightening roller.

[0038] The straightener frame 2 is typically welded from steel plates to enhance its structural strength. Vertical straightener columns 12 extend from both sides of the frame 2. An upper housing 9 and a lower housing 13 are connected to the top and bottom of the frame 2, respectively. A straightening roller system 11 is installed between the upper housing 9 and the lower housing 13. An adjustment mechanism 10 is installed on the upper housing 9 and / or the lower housing 13 to precisely drive one row of straightening rollers for position adjustment to accommodate different plate shapes and thicknesses.

[0039] The sheet material enters the gap between the straightening rollers, and the adjusting mechanism 10 applies pressure to the sheet material according to the settings. The double-sided drive device of the straightening rollers is activated, so that both ends of all the straightening rollers are driven synchronously. The straightening rollers perform pure rolling, repeatedly bending the sheet material to eliminate its internal residual stress and achieve leveling.

[0040] In this embodiment, the adjustment mechanism 10 can be a pressing hydraulic device, which is installed in the upper housing 9 and used to precisely drive the upper row of straightening rollers to adjust their pressing position. Furthermore, the synchronous shaft 8 of the double-sided drive device for the straightening rollers can be rotatably mounted below the straightening roller system 11 to fully avoid the path of the pressing hydraulic device driving the upper row of straightening rollers. The input end of the transmission distribution box 5 is located at its bottom position to connect with the end of the synchronous shaft 8, and each output end of the transmission distribution box 5 is located at its top position to be connected to each straightening roller.

[0041] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0042] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A double-sided drive device for a straightening roller, characterized in that, include: The drive frame has two support platforms, which are arranged on both sides of the straightening machine frame along the axial direction of the straightening roller; The transmission distribution box has two sets and is respectively installed on the two bearing platforms; the transmission distribution box has an input end and multiple synchronous transmission output ends; each output end on the two transmission distribution boxes is at least partially corresponding, and the corresponding two output ends on the two transmission distribution boxes are respectively used for synchronous transmission connection to both ends of the same straightening roller; the input ends of the two transmission distribution boxes are synchronously connected. A rotation drive mechanism is mounted on any of the aforementioned support platforms, and its output end is connected to the input end of the transmission distribution box on the corresponding support platform.

2. The double-sided driving device for straightening rollers according to claim 1, characterized in that, Also includes: A synchronous shaft is rotatably mounted between the two bearing platforms, and the synchronous shaft is synchronously connected to the input end of each of the transmission distribution boxes, and the output end of the rotation drive mechanism is connected to the synchronous shaft.

3. The double-sided driving device for straightening rollers according to claim 2, characterized in that, The middle part of the synchronous shaft is rotatably mounted on the straightening machine frame, and its two ends extend out from both sides of the straightening machine frame and are synchronously connected to the input end of each of the transmission distribution boxes.

4. The double-sided driving device for straightening rollers according to claim 2, characterized in that, The input end of the transmission distribution box includes an input transmission component, which has two input ends. One input end of the input transmission component is connected to one end of the synchronous shaft, and the other input end of the input transmission component is connected to the output end of the rotation drive mechanism.

5. The double-sided driving device for straightening rollers according to claim 1, characterized in that, The rotation drive mechanism includes a drive motor and a reducer, and the output end of the drive motor is connected to the input end of the corresponding transmission distribution box through the reducer.

6. The double-sided drive device for straightening rollers according to claim 1, characterized in that, A universal drive mechanism is connected between the output end of the transmission distribution box and the end of the straightening roller.

7. The double-sided driving device for straightening rollers according to claim 6, characterized in that, The universal joint transmission mechanism employs, but is not limited to, a universal coupling.

8. The double-sided driving device for straightening rollers according to claim 1, characterized in that, An overload protector is provided on the transmission path from the output end of at least one of the transmission distribution boxes to its corresponding universal joint transmission mechanism.

9. The double-sided driving device for straightening rollers according to claim 8, characterized in that, The overload protector uses, but is not limited to, a friction coupling.

10. A straightening machine, characterized in that, include: The straightening machine frame is equipped with a straightening roller system and an adjustment mechanism; the straightening roller system includes multiple straightening rollers arranged in parallel; the adjustment mechanism is used to drive the straightening roller system to adjust its position. The double-sided drive device for straightening rollers as described in any one of claims 1 to 8, wherein the two bearing platforms of the drive frame are arranged on both sides of the straightening machine frame along the axial direction of the straightening roller, and the two bearing platforms are provided with transmission distribution boxes, the corresponding two output ends of which are used for synchronous transmission connection to both ends of the same straightening roller.

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