Energy field acting device for assisting rolling of super-large h-shaped steel and using method thereof

CN118950694BActive Publication Date: 2026-09-18TAIYUAN UNIVERSITY OF TECHNOLOGY
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Patent Information

Application Number
CN202411086054.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-08
Publication Date
2026-09-18
Estimated Expiration
2044-08-08

AI Technical Summary

Technical Problem

轧制实践表明,温度会严重影响钢坯的延伸率,较大的温度差使得超大H型钢的腹板和翼板在轧制时产生明显的延伸差,导致翼板和腹板部位出现波浪,严重影响钢材质量

Benefits of technology

[0029]Compared with existing technologies, this invention has the following advantages and technical effects: The main function of the several energizing contacts is to allow current to flow into the extra-large H-beam by contacting the edge of its flange; the energizing contacts in two sets of electric field mechanisms are set as positive electrodes, and the energizing contacts in the other two sets are set as negative electrodes, allowing current to flow within the extra-large H-beam and utilizing the current heating effect to reheat it; the main function of the several electromagnetic coils is to generate a magnetic field, changing the current distribution within the extra-large H-beam and ensuring a uniform overall temperature of the rolled piece; the main function of the position adjustment assembly is to adjust the distance between the flexible groove and the extra-large H-beam, thereby changing the intensity of the magnetic field generated by each electromagnetic coil on the extra-large H-beam. Overall, this invention utilizes the heating effect and Hall effect of current to reheat the extra-large H-beam and ensure a uniform overall temperature of the rolled piece, thus improving the rolling quality of the extra-large H-beam.

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Abstract

The application belongs to the technical field of rolling of super H-shaped steel, and provides an energy field acting device for assisting in rolling of super H-shaped steel and a use method thereof. The device comprises a rack, wherein the super H-shaped steel penetrates through the rack; four groups of electric field acting mechanisms are respectively arranged at the top and bottom of the rack, and each electric field acting mechanism comprises a plurality of electric contact points which are arranged at the edge of the wing plate of the super H-shaped steel; four groups of magnetic field acting mechanisms are respectively arranged on the inner walls of the four sides of the rack, and each magnetic field acting mechanism comprises a flexible wire slot, a plurality of electromagnetic coils are arranged in the flexible wire slot, a plurality of position adjusting assemblies are arranged between the flexible wire slot and the rack along the direction of the flexible wire slot, and the position adjusting assemblies are used for adjusting the distance between the flexible wire slot and the super H-shaped steel. The application can improve the rolling quality of the super H-shaped steel.
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Description

Technical Field

[0001] This invention belongs to the field of ultra-large H-beam rolling technology, and particularly relates to an energy field device and its usage method for assisting in the rolling of ultra-large H-beams. Background Technology

[0002] In recent years, the steel structure industry has flourished, with breakthroughs continuously being made in the size and specifications of extra-large H-beams. However, larger H-beams are more prone to defects during rolling, with waviness in the flanges or web being one of the main quality problems. Extra-large H-beams are characterized by thin webs and thick flanges. During hot rolling, the thinner web cools faster than the thicker flanges, creating a temperature difference. Rolling practice shows that temperature significantly affects the elongation of the billet. A large temperature difference causes a noticeable difference in elongation between the web and flanges of the extra-large H-beam during rolling, resulting in waviness in the flanges and web, severely impacting the quality of the steel. Therefore, it is necessary to improve the rolling process by introducing new auxiliary equipment to enhance rolling quality. Summary of the Invention

[0003] The purpose of this invention is to provide an energy field application device and method for assisting in the rolling of extra-large H-beams, so as to solve the above-mentioned problems, ensure the overall temperature of the rolled piece is consistent, and improve the rolling quality of extra-large H-beams.

[0004] To achieve the above objectives, the present invention provides the following solution: an energy field application device for assisting in the rolling of extra-large H-beams, comprising:

[0005] The frame is constructed with extra-large H-beams running through it.

[0006] Four sets of electric field action mechanisms are respectively set at the top and bottom ends of the frame. Each electric field action mechanism includes several energizing contacts, which are respectively set corresponding to the edge of the wing plate of the extra-large H-beam.

[0007] Four sets of magnetic field action mechanisms are respectively arranged on the inner walls of the frame. Each magnetic field action mechanism includes a flexible wire groove, and a number of electromagnetic coils are arranged in the flexible wire groove. A number of position adjustment components are arranged between the flexible wire groove and the frame along the direction of the flexible wire groove. The number of position adjustment components are used to adjust the distance between the flexible wire groove and the extra-large H-beam at various points.

[0008] An energy field control component, comprising a temperature detection mechanism, a distance detection mechanism, and an energy field adjustment system, wherein the energy field adjustment system is electrically connected to the temperature detection mechanism and the distance detection mechanism.

[0009] Preferably, the electric field action mechanism further includes a contact bracket fixedly connected to the frame, with an insulating plate fixedly connected to the top and both sides of the contact bracket, and a plurality of energized contacts respectively disposed on three sets of the insulating plates, with the plurality of energized contacts on the three sets of the insulating plates corresponding to the sides and ends of the extra-large H-shaped steel wing plate.

[0010] Preferably, the insulating plate has several through holes, and a sliding rod is slidably connected to each of the several through holes. The energizing contact is disposed at one end of the sliding rod, and a buffer spring abuts against the energizing contact and the insulating plate.

[0011] Preferably, the magnetic field action mechanism further includes four sets of tension springs, one end of each of the four sets of tension springs is fixedly connected to the two ends of the two opposite side walls of the flexible wire groove, and several spring supports are fixedly connected to the frame, with the other end of each tension spring being fixedly connected to the spring supports.

[0012] Preferably, the position adjustment assembly includes a plurality of pressing rods, which are disposed on the side of the flexible cable tray away from the frame. Each pressing rod has a pull lug hinged to both sides. A hydraulic cylinder is fixedly connected to one pull lug, and a telescopic rod is fixedly connected to the other pull lug. The hydraulic cylinder and the telescopic rod are fixedly connected to the frame. The pressing rod is driven by the hydraulic cylinder and the telescopic rod to press the flexible cable tray toward the frame.

[0013] Preferably, the position adjustment assembly further includes a plurality of cams rotatably connected to the frame, the plurality of cams being disposed on the side of the flexible wire groove near the frame, and a plurality of servo motors being fixedly connected to the frame, the plurality of servo motors being respectively connected to the plurality of cams, the cams being driven by the servo motors to press the flexible wire groove away from the frame.

[0014] Preferably, the temperature detection mechanism includes several temperature sensors fixedly connected to the inner walls around the frame, and the temperature sensors are used to monitor the surface temperature of the extra-large H-beam in real time.

[0015] Preferably, the distance detection mechanism includes several laser reflection sensors fixedly connected to the inner walls around the frame, and the laser reflection sensors are used to obtain the distance between the flexible cable tray and the extra-large H-beam.

[0016] A method for using an energy field application device to assist in the rolling of extra-large H-beams, comprising the following operating steps:

[0017] The extra-large H-beam is conveyed into the frame, and current is applied to the extra-large H-beam through the energizing contacts. At the same time, current is applied to several electromagnetic coils to generate a magnetic field of appropriate strength.

[0018] The energy field regulation system adjusts the output current intensity of the energizing contacts and the output electric field intensity of the electromagnetic coil based on the surface temperature value of the extra-large H-beam detected by the temperature detection mechanism and the distance value between the flexible trough and the extra-large H-beam detected by the distance detection mechanism. It also adjusts the distance between different positions on the flexible trough and the extra-large H-beam through several position adjustment components.

[0019] A method for using an energy field regulating device to assist in the rolling of extra-large H-beams, the construction process of the energy field regulating system includes:

[0020] Based on the temperature information fed back by the temperature detection agency and finite element simulation, the initial temperature distribution of different parts on the same cross section of the super-large H-beam is obtained, and the temperature difference distribution curve is constructed with the lowest temperature as the benchmark.

[0021] Initialize the output pulse current parameters of the energized contact, including the pulse amplitude I. m Pulse width w, pulse frequency f, duty cycle q, magnetic field strength H generated by the electromagnetic coil, and curvature ρ of the flexible groove;

[0022] Based on finite element simulation, a control function related to the electric field is established:

[0023] ΔT Ei =θ(I m (w, f, q)

[0024] Based on finite element simulation, a control function related to the magnetic field is established:

[0025] ΔT Hi =Φ(H, ρ, d) i )

[0026] Based on finite element simulation, the control function of the energy field control system is established:

[0027] ΔT i =Π(T) Ei T Hi )

[0028] The above control functions are used to adjust the output pulse current parameters of the energized contacts; adjust the magnetic field strength H generated by the electromagnetic coil; adjust the curvature ρ of the flexible cable tray; and adjust the distance d between different parts of the flexible cable tray and the extra-large H-beam. i .

[0029] Compared with existing technologies, this invention has the following advantages and technical effects: The main function of the several energizing contacts is to allow current to flow into the extra-large H-beam by contacting the edge of its flange; the energizing contacts in two sets of electric field mechanisms are set as positive electrodes, and the energizing contacts in the other two sets are set as negative electrodes, allowing current to flow within the extra-large H-beam and utilizing the current heating effect to reheat it; the main function of the several electromagnetic coils is to generate a magnetic field, changing the current distribution within the extra-large H-beam and ensuring a uniform overall temperature of the rolled piece; the main function of the position adjustment assembly is to adjust the distance between the flexible groove and the extra-large H-beam, thereby changing the intensity of the magnetic field generated by each electromagnetic coil on the extra-large H-beam. Overall, this invention utilizes the heating effect and Hall effect of current to reheat the extra-large H-beam and ensure a uniform overall temperature of the rolled piece, thus improving the rolling quality of the extra-large H-beam. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is a schematic diagram of the overall assembly of the auxiliary rolling device of the present invention;

[0032] Figure 2 This is a schematic diagram of the electric field action mechanism of the present invention;

[0033] Figure 3 This is a schematic diagram of the energizing contact mechanism of the present invention;

[0034] Figure 4 This is a schematic diagram of the magnetic field action mechanism of the present invention;

[0035] Figure 5 This is a schematic diagram of the cam, temperature detection mechanism, and distance detection mechanism of the present invention;

[0036] Figure 6 This is a schematic diagram of the working state of the magnetic field action mechanism of the present invention;

[0037] Figure 7 This is a flowchart illustrating the energy field regulation system of the present invention.

[0038] Figure 8 This is a flowchart illustrating the energy field interaction process for rolling ultra-large H-beams according to the present invention.

[0039] The components include: 1. Extra-large H-beam; 2. Pusher; 3. Centering roller; 4. Frame; 501. Contact bracket; 502. Insulating board; 503. Buffer spring; 504. Power contact; 505. Sliding rod; 506. Pin; 601. Flexible cable tray; 602. Electromagnetic coil; 603. Tension spring; 604. Spring bracket; 605. Hydraulic cylinder; 606. Pull lug; 607. Pressing rod; 608. Telescopic rod; 609. Servo motor; 610. Cam bracket; 611. Drive belt; 612. Driven pulley; 613. Drive pulley; 614. Cam; 615. Drive shaft; 616. Bearing; 701. Sensor bracket; 702. Temperature sensor; 703. Laser reflection sensor. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] Reference Figures 1-8 This invention provides an energy field application device for assisting in the rolling of extra-large H-beams, comprising:

[0043] Frame 4, extra-large H-beam 1 runs through frame 4;

[0044] Four sets of electric field action mechanisms are respectively set at the top and bottom ends of the frame 4. Each electric field action mechanism includes several energized contacts 504, which are respectively set with corresponding edges of the wing plates of the extra-large H-beam 1.

[0045] Four sets of magnetic field action mechanisms are respectively set on the inner walls of the frame 4. The magnetic field action mechanism includes a flexible wire trough 601, and several electromagnetic coils 602 are set in the flexible wire trough 601. Several position adjustment components are set between the flexible wire trough 601 and the frame 4 along the direction of the flexible wire trough 601. The position adjustment components are used to adjust the distance between the flexible wire trough 601 and the extra-large H-beam 1 at various points.

[0046] The energy field control component includes a temperature detection mechanism, a distance detection mechanism, and an energy field regulation system. The energy field regulation system is electrically connected to the temperature detection mechanism and the distance detection mechanism.

[0047] The main function of several energizing contacts 504 is to allow current to flow into the extra-large H-beam 1 by contacting the edge of the flange. Two sets of energizing contacts 504 in the electric field mechanism are set as positive terminals, while the other two sets are set as negative terminals, allowing current to flow through the extra-large H-beam 1 and utilizing the current heating effect to supplement the heat of the extra-large H-beam 1. Several electromagnetic coils 602 primarily generate magnetic fields to change the current distribution in the extra-large H-beam 1, ensuring a uniform overall temperature of the rolled piece. The main function of the position adjustment assembly is to change the intensity of the magnetic field generated by each electromagnetic coil on the extra-large H-beam 1 by adjusting the distance between the flexible groove 601 and the extra-large H-beam 1 at various points. The main function of the temperature detection mechanism is to detect the temperature distribution of the extra-large H-beam 1, and the main function of the distance detection mechanism is to detect the distance between the flexible groove 601 and the extra-large H-beam 1 at various points. Overall, this invention utilizes the thermal effect of electric current and the Hall effect to reheat extra-large H-beams and ensure consistent overall temperature of the rolled piece, thereby improving the rolling quality of extra-large H-beams.

[0048] Further optimization of the scheme: a pusher bed 2 is set on one side of the frame 4, and several centering rollers 3 are set on both sides of the top of the pusher bed 2. The extra-large H-beam 1 is set in correspondence with the pusher bed 2 and the several centering rollers 3.

[0049] like Figure 1 As shown, several centering rollers 3 on both sides are vertically mounted on the pusher bed 2 via adjusting brackets. The extra-large H-beam 1 is placed on the pusher bed 2 with its flanges in a vertical position, and the flanges on both sides of the extra-large H-beam 1 are brought into contact with the centering rollers 3. By adjusting the position of the centering rollers 3, the flanges are aligned with the energizing contact 504. The extra-large H-beam 1 is then pushed into the frame 4 using the equipment.

[0050] To further optimize the scheme, the electric field action mechanism also includes a contact bracket 501 fixedly connected to the frame 4. Insulating plates 502 are fixedly connected to the top and both sides of the top of the contact bracket 501. Several energized contacts 504 are respectively set on the three sets of insulating plates 502. The several energized contacts 504 on the three sets of insulating plates 502 are respectively set to correspond to the sides and ends of the wing plate of the extra-large H-beam 1.

[0051] In a further optimized design, the insulating plate 502 has several through holes, and a sliding rod 505 is slidably connected to each of the through holes. An energizing contact 504 is located at one end of the sliding rod 505, and a buffer spring 503 abuts against the energizing contact 504 and the insulating plate 502.

[0052] like Figure 2 and Figure 3As shown, when the extra-large H-beam 1 enters the frame 4, the upper and lower ends of the two sets of wing plates enter between several energizing contacts 504 between the three sets of insulating plates 502. The several energizing contacts 504 clamp the wing plates, so that the current can flow between the energizing contacts 504 and the extra-large H-beam 1.

[0053] One end of the sliding rod 505 is fixedly connected to a rotating seat. The energizing contact 504 is a cylindrical structure and rotatably connected to the rotating seat, ensuring rolling contact between the oversized H-beam 1 and the energizing contact 504, thus reducing pushing resistance. A pin 506 is provided at the end of the sliding rod 505 away from the energizing contact 504, and the pin 506 is located on the side of the insulating plate 502 away from the energizing contact 504. The buffer spring 503 pushes the energizing contact 504 inward, ensuring that the energizing contact 504 is always in contact with the flange of the oversized H-beam 1.

[0054] Because the extra-large H-beam 1 may have uneven flange thickness, resulting in temperature differences within the flanges, precise heating can be achieved through different current paths: On both sides of the frame 4, a pulsed positive current is simultaneously applied to the upper and lower energizing contacts 504 on one side, and a pulsed negative current is simultaneously applied to the upper and lower energizing contacts on the other side, causing current to flow simultaneously from the upper and lower flanges on the same side through the web to the upper and lower flanges on the other side; or, on both sides of the frame 4, a pulsed positive current is applied to the upper (or lower) energizing contact on one side, and a pulsed negative current is applied to the lower (or upper) energizing contact on the other side, causing current to flow from the upper (or lower) flange on one side through the web to the lower (or upper) flange on the other side of the left and right sides.

[0055] In a further optimized scheme, the magnetic field action mechanism also includes four sets of tension springs 603. One end of each of the four sets of tension springs 603 is fixedly connected to the two ends of the two opposite side walls of the flexible wire trough 601. Several spring supports 604 are fixedly connected to the frame 4, and the other end of each tension spring 603 is fixedly connected to the spring support 604.

[0056] like Figure 1 and Figure 4 As shown, the main function of the tension spring 603 is to fix the flexible wire groove 601 between the four sets of spring supports 604. At the same time, when the flexible wire groove 601 is deformed due to the position adjustment component, the tension spring 603 ensures the effective fixation of the flexible wire groove 601 through its own extension and contraction.

[0057] The scheme is further optimized. The position adjustment component includes several pressing rods 607. The pressing rods 607 are set on the side of the flexible wire trough 601 away from the frame 4. The two sides of the pressing rods 607 are respectively hinged with pull lugs 606. A hydraulic cylinder 605 is fixedly connected to one pull lug 606, and a telescopic rod 608 is fixedly connected to the other pull lug 606. The hydraulic cylinder 605 and the telescopic rod 608 are respectively fixedly connected to the frame 4. Under the action of the hydraulic cylinder 605 and the telescopic rod 608, the pressing rods 607 press the flexible wire trough 601 towards the frame 4.

[0058] like Figure 4 and Figure 6 As shown, the energy field adjustment system controls the retraction of the hydraulic cylinder 605, which in turn controls the pressing rod 607 to move closer to the flexible wire groove 601, thereby pressing down the flexible wire groove 601 and changing the curvature of the flexible wire groove 601 at the action position.

[0059] In a further optimized solution, the position adjustment component also includes several cams 614 rotatably connected to the frame 4. Several cams 614 are set on the side of the flexible wire groove 601 close to the frame 4. Several servo motors 609 are also fixedly connected to the frame 4. Several servo motors 609 are respectively connected to several cams 614 for transmission. Under the drive of the servo motors 609, the cams 614 press the flexible wire groove 601 away from the frame 4.

[0060] In a further optimized design, a cam support 610 is fixedly connected to the frame 4. A bearing 616 is mounted on the cam support 610. The drive shaft 615 of the cam 614 is rotatably connected to the cam support 610 via the bearing 616. A servo motor 609 is fixedly connected to the cam support 610. A driven pulley 612 is fixedly fitted onto one end of the drive shaft 615, and a driving pulley 613 is fixedly fitted onto the output shaft of the servo motor 609. A drive belt 611 is wound between the driving pulley 613 and the driven pulley 612.

[0061] like Figures 4-6 As shown, the energy field regulation system controls the servo motor 609 to rotate at a certain angle. The servo motor 609, via a belt, drives the cam 614 to rotate at a certain angle. The cam 614 pushes the flexible wire groove 601 away from the frame 4, changing the curvature of the flexible wire groove 601 at the action position. Through the combined action of several cams 614 and several pressing rods 607, the shape of the flexible wire groove 601 is changed, forming a shape as shown in the diagram. Figure 6 The curve shape shown ensures that the electromagnetic coils 602 on the flexible wire trough 601 are at a suitable distance from the extra-large H-beam 1.

[0062] The scheme is further optimized. The temperature detection mechanism includes several temperature sensors 702 that are fixedly connected to the inner walls of the frame 4. The temperature sensors 702 are used to monitor the surface temperature of the extra-large H-beam 1 in real time.

[0063] like Figure 5 As shown, a sensor frame 701 is fixedly connected to the cam support 610, and a temperature sensor 702 is fixedly connected to the sensor frame 701. Several temperature sensors 702 on the cam supports 610 simultaneously detect the temperature of the same cross-section of the extra-large H-beam 1.

[0064] The scheme is further optimized. The distance detection mechanism includes several laser reflection sensors 703 fixedly connected to the inner walls of the frame 4. The laser reflection sensors 703 are used to obtain the distance between the flexible wire trough 601 and the extra-large H-beam 1.

[0065] like Figure 5 As shown, the laser reflection sensor 703 is fixedly connected to the cam bracket 610, and the laser reflection sensor 703 on several cam brackets 610 detects the distance of the flexible wire groove 601 from the extra-large H-beam 1 at various points.

[0066] A method for using an energy field application device to assist in the rolling of extra-large H-beams, comprising the following operating steps:

[0067] The extra-large H-beam 1 is conveyed into the frame 4. Current is applied to the extra-large H-beam 1 through the energizing contact 504, and at the same time, current is applied to several electromagnetic coils 602 to generate a magnetic field of appropriate strength.

[0068] The extra-large H-beam 1 is conveyed to the inlet end of the frame 4 via the pusher 2, and its position is adjusted by the centering roller 3 so that the edges of its four sets of flanges accurately enter between the energizing contacts 504. As the extra-large H-beam 1 is pushed in, the energizing contacts 504 clamp the edges of the flanges of the extra-large H-beam 1 and precisely heat the extra-large H-beam 1 by controlling the current path. At the same time, the electromagnetic coil 602 is energized, forming an electromagnet and generating a magnetic field. The current flowing on the surface of the extra-large H-beam 1 is affected by the Lorentz force in the magnetic field, causing its trajectory to deviate, penetrate deeper into the steel section and flow, thereby changing the current distribution on the rolled piece and ensuring a uniform overall temperature of the rolled piece.

[0069] The energy field regulation system adjusts the output current intensity of the energizing contact 504 and the output electric field intensity of the electromagnetic coil 602 based on the surface temperature value of the extra-large H-beam 1 detected by the temperature detection mechanism and the distance value of the flexible wire trough 601 from the extra-large H-beam 1 detected by the distance detection mechanism. It also adjusts the distance of different positions on the flexible wire trough 601 from the extra-large H-beam 1 based on several position adjustment components.

[0070] A method for using an energy field regulating device to assist in the rolling of extra-large H-beams, the construction process of the energy field regulating system includes:

[0071] Based on the temperature information fed back by the temperature detection agency and finite element simulation, the initial temperature distribution of different parts on the same cross section of the super-large H-beam 1 is obtained, and the temperature difference distribution curve is constructed with the lowest temperature as the benchmark.

[0072] Initialize the output pulse current parameters of the energized contact 504, including the pulse amplitude I. m Pulse width w, pulse frequency f, duty cycle q, magnetic field strength H generated by the electromagnetic coil, and curvature ρ of the flexible groove;

[0073] Based on finite element simulation, a control function related to the electric field is established:

[0074] ΔT Ei =θ(I m (w, f, q)

[0075] Based on finite element simulation, a control function related to the magnetic field is established:

[0076] ΔT Hi =Φ(H, ρ, d) i )

[0077] Based on finite element simulation, the control function of the energy field control system is established:

[0078] ΔT i =Π(T) Ei T Hi )

[0079] The control function adjusts the output pulse current parameters of the energized contact 504; adjusts the magnetic field strength H generated by the electromagnetic coil 602; adjusts the curvature ρ of the flexible cable tray 601; and adjusts the distance d between different parts of the flexible cable tray 601 and the extra-large H-beam 1. i .

[0080] As the extra-large H-beam 1 is continuously pushed in, the temperature sensor 702 monitors the surface temperature of the extra-large H-beam 1 in real time, and the laser reflection sensor 703 can obtain the distance between the flexible cable tray 601 and the extra-large H-beam 1. The temperature sensor 702 and the laser reflection sensor 703 feed back the acquired temperature and position information to the energy field regulation system. The energy field regulation system adjusts the output current of the energized contact 504, the output magnetic field strength H of the electromagnetic coil 602, and the distance between the flexible cable tray 601 and the extra-large H-beam at different positions in real time through the above construction process. Several hydraulic cylinders 605 and servo motors 609 are individually controlled and work independently, which can make the flexible cable tray 601 present various curved states, so that the temperature difference distribution of the extra-large H-beam 1 is within the preset temperature difference distribution threshold range.

[0081] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0082] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An energy field application device for assisting in the rolling of extra-large H-beams, characterized in that, include: The frame (4) is pierced by an extra-large H-beam (1); Four sets of electric field action mechanisms are respectively set at the top and bottom ends of the frame (4). Each electric field action mechanism includes several energized contacts (504), which are respectively set to correspond to the edge of the wing plate of the super-large H-beam (1). Four sets of magnetic field action mechanisms are respectively set on the inner walls of the frame (4). Each magnetic field action mechanism includes a flexible wire groove (601). Several electromagnetic coils (602) are set in the flexible wire groove (601). Several position adjustment components are set between the flexible wire groove (601) and the frame (4) along the direction of the flexible wire groove (601). The several position adjustment components are used to adjust the distance between the flexible wire groove (601) and the extra-large H-beam (1) at various points. The position adjustment assembly includes a plurality of pressing rods (607), which are disposed on the side of the flexible wire groove (601) away from the frame (4). Each pressing rod (607) has a pull lug (606) hinged to its two sides. A hydraulic cylinder (605) is fixedly connected to one pull lug (606), and a telescopic rod (608) is fixedly connected to the other pull lug (606). The hydraulic cylinder (605) and the telescopic rod (608) are fixedly connected to the frame (4). The pressing rod (607) is driven by the hydraulic cylinder (605) and the telescopic rod (608) to press the flexible wire groove (601) toward the frame (4). The position adjustment assembly also includes a plurality of cams (614) rotatably connected to the frame (4). The plurality of cams (614) are disposed on the side of the flexible wire groove (601) near the frame (4). The frame (4) is also fixedly connected to a plurality of servo motors (609). The plurality of servo motors (609) are respectively connected to the plurality of cams (614). The cams (614) are driven by the servo motors (609) to press the flexible wire groove (601) away from the frame (4). An energy field control component, comprising a temperature detection mechanism, a distance detection mechanism, and an energy field adjustment system, wherein the energy field adjustment system is electrically connected to the temperature detection mechanism and the distance detection mechanism; The temperature detection mechanism includes several temperature sensors (702) fixedly connected to the inner walls of the frame (4). The temperature sensors (702) are used to monitor the surface temperature of the extra-large H-beam (1) in real time. The distance detection mechanism includes several laser reflection sensors (703) fixedly connected to the inner walls of the frame (4). The laser reflection sensors (703) are used to obtain the distance between the flexible wire groove (601) and the extra-large H-beam (1).

2. The energy field application device for assisting in the rolling of extra-large H-beams according to claim 1, characterized in that: The electric field action mechanism also includes a contact bracket (501) fixedly connected to the frame (4). Insulating plates (502) are fixedly connected to the top and both sides of the contact bracket (501). A number of energized contacts (504) are respectively arranged on three sets of insulating plates (502). The number of energized contacts (504) on the three sets of insulating plates (502) are respectively arranged corresponding to the sides and ends of the wing plate of the extra-large H-beam (1).

3. The energy field application device for assisting in the rolling of extra-large H-beams according to claim 2, characterized in that: The insulating plate (502) has several through holes, and a sliding rod (505) is slidably connected in each of the several through holes. The power-on contact (504) is located at one end of the sliding rod (505), and a buffer spring (503) abuts against the power-on contact (504) and the insulating plate (502).

4. The energy field application device for assisting in the rolling of extra-large H-beams according to claim 1, characterized in that: The magnetic field action mechanism also includes four sets of tension springs (603). One end of each of the four sets of tension springs (603) is fixedly connected to the two ends of the two opposite side walls of the flexible wire groove (601). Several spring supports (604) are fixedly connected to the frame (4). The other end of each tension spring (603) is fixedly connected to the spring support (604).

5. A method of using an energy field application device for assisting in the rolling of extra-large H-beams, based on the energy field application device for assisting in the rolling of extra-large H-beams as described in claim 1, characterized in that, The operating steps include: The extra-large H-beam (1) is transported into the frame (4), and current is applied to the extra-large H-beam (1) through the power contact (504), while current is applied to several electromagnetic coils (602) to generate a magnetic field of appropriate strength. The energy field regulation system adjusts the output current intensity of the energizing contact (504) and the output electric field intensity of the electromagnetic coil (602) based on the surface temperature value of the extra-large H-beam (1) detected by the temperature detection mechanism and the distance value of the flexible wire trough (601) from the extra-large H-beam (1) detected by the distance detection mechanism. It also adjusts the distance of different positions on the flexible wire trough (601) from the extra-large H-beam (1) based on several position adjustment components.

6. A method of using the energy field application device for assisting in the rolling of extra-large H-beams according to claim 5, characterized in that: The construction process of an energy field regulation system includes: Based on the temperature information fed back by the temperature detection agency and finite element simulation, the initial temperature distribution of different parts on the same section of the super-large H-beam (1) is obtained, and the temperature difference distribution curve is constructed with the lowest temperature as the benchmark. Initialize the output pulse current parameters of the energized contact (504), including the pulse amplitude I. m Pulse width w, pulse frequency f, duty cycle q, magnetic field strength H generated by the electromagnetic coil, and curvature ρ of the flexible groove; Based on finite element simulation, a control function related to the electric field is established: ΔT Ei =θ(I m ,w,f,q) Based on finite element simulation, a control function related to the magnetic field is established: ΔT Hi =Φ(H、ρ、d) i ) Based on finite element simulation, the control function of the energy field control system is established: ΔT i =Π(T Ei 、T Hi ) The output pulse current parameters of the energized contact (504) are adjusted through the above control function; the magnetic field strength H generated by the electromagnetic coil (602) is adjusted; the curvature ρ of the flexible wire groove (601) and the distance d between different parts of the flexible wire groove (601) and the super-large H-beam (1) are adjusted. i .

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