An online detection furnace roller deformation structure

Abstract

The utility model provides an online detection furnace roller deformation structure, including conveying roller mechanism, detection mechanism and heat preservation mechanism, heat preservation mechanism has the heat preservation space, detection mechanism includes laser assembly, mirror component and a plurality of optical sensors, optical sensor connects on the steel sheet, mirror component is used for reflecting the light source that laser assembly shoots to the optical sensor on the steel sheet, and the mirror surface side of mirror component is adjustably arranged. Such through laser detection cooperation steel sheet optical sensor transmission data signal's mode can be in high temperature environment real -time, accurate measurement furnace roller's levelness and roundness, avoided the tedious operation of traditional method needing to stop furnace and cooling to normal temperature after manual measurement, improved production efficiency greatly, and through the heat preservation mechanism to the working environment of whole equipment constant temperature protection, improved the precision and reliability of detection, ensured the accuracy of detection result.

Description

Technical Field

[0001] This utility model relates to the field of furnace roll deformation detection technology, and in particular to an online furnace roll deformation detection structure. Background Technology

[0002] Steel plate is one of the most important products in steel production, and the annealing process is a crucial step in its production. Currently, cold-rolled steel plate annealing is mainly carried out in continuous annealing furnaces. The strip steel undergoes multiple furnace stages, including preheating, heating, homogenization, slow cooling, and flash cooling, to ultimately obtain the desired properties. However, in actual production, factors such as furnace roll wear and uneven contact between the strip steel and the furnace rolls can easily lead to furnace roll deformation, affecting the stable operation and surface quality of the strip steel.

[0003] In existing technologies, furnace roll deformation mainly manifests as changes in geometric shape such as roll body bending and shaft head bending. These deformations can cause strip steel to deviate from its designated path within the furnace and experience thermal warping, severely impacting product quality. Currently, the main method for detecting furnace roll deformation relies on manual measurement after the furnace has been shut down and cooled to room temperature. This method is not only time-consuming and labor-intensive but also affects production efficiency. Furthermore, due to the harsh high-temperature environment inside the furnace, directly observing furnace roll deformation also poses safety hazards.

[0004] Therefore, it is necessary to propose an online detection structure for furnace roll deformation to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of this invention is to provide an online detection structure for furnace roll deformation, so as to solve the problem that the existing furnace roll deformation detection methods rely on manual measurement, which is time-consuming and labor-intensive.

[0006] To achieve the above objectives, this utility model provides an online detection structure for furnace roller deformation, including a conveying roller mechanism, a detection mechanism, and a heat preservation mechanism; wherein,

[0007] The insulation mechanism has an insulation space, which covers the conveying roller mechanism. The detection mechanism is built into the insulation space and is spaced apart on the side of the conveying roller mechanism. The conveying roller mechanism is used to place steel plates, and the furnace rollers of the conveying roller mechanism are detachably installed.

[0008] The detection mechanism includes a laser assembly, a reflector assembly, and multiple optical sensors spaced apart along the width direction of the conveyor roller mechanism. The optical sensors are connected to a steel plate. The laser assembly and the reflector assembly are spaced apart. The reflector assembly is connected to the inner wall of the insulation mechanism. The light-emitting end of the laser assembly faces the mirror side of the reflector assembly. The reflector assembly is used to reflect the light source emitted by the laser assembly onto the optical sensors on the steel plate, and the mirror side of the reflector assembly is adjustable.

[0009] Preferably, the heat preservation mechanism includes a heat preservation box, which has an opening for the conveying roller mechanism to pass through, and the reflector assembly is connected to the inner wall of the heat preservation box.

[0010] Preferably, the reflector assembly includes a reflector, a hinge base, and a fixing frame. The fixing frame is fixed to the top corner of the insulation box, the hinge base is fixed to the fixing frame and is inclined downwards, and the back end of the reflector is hinged to the hinge base to adjust the orientation of the mirror side.

[0011] Preferably, the laser assembly includes a support frame and a laser. The support frame is spaced apart on the side of the conveyor roller mechanism. The laser is connected to the top of the support frame and is rotatably arranged in the horizontal direction. The laser's emitting end faces the mirror side of the reflector.

[0012] Preferably, the reflector assembly further includes a ball joint connected to the back end of the reflector, and the reflector is spherically hinged to the hinge seat via the ball joint.

[0013] Preferably, the insulation mechanism further includes a circulating fan and an air supply pipe. A ventilation opening is provided on the side wall of the insulation box. The circulating fan is connected to the inner side wall of the insulation box and communicates with the ventilation opening. The air supply pipe is connected to the outer side wall of the insulation box and communicates with the ventilation opening.

[0014] Preferably, there are two detection mechanisms, which are arranged opposite to each other along the width direction of the conveying roller mechanism.

[0015] Preferably, the number of optical sensors on the steel plate is three, and the three optical sensors are equidistantly arranged along the width direction of the conveying roller mechanism, and are respectively distributed at both ends and the middle of the steel plate.

[0016] Preferably, the spacing between two adjacent optical sensors is 300mm to 500mm.

[0017] Preferably, it also includes a temperature sensor, which is connected to the inner wall of the insulation box.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model provides an online detection structure for furnace roller deformation, including a conveying roller mechanism, a detection mechanism, and a heat preservation mechanism. The heat preservation mechanism has a heat preservation space and covers the outside of the conveying roller mechanism. The detection mechanism is built into the heat preservation space and is spaced apart on the side of the conveying roller mechanism. The conveying roller mechanism is used to place steel plates, and the furnace rollers of the conveying roller mechanism are detachably mounted. The detection mechanism includes a laser assembly, a reflector assembly, and multiple optical sensors spaced apart along the width direction of the conveying roller mechanism. The optical sensors are connected to the steel plate. The laser assembly and the reflector assembly are spaced apart. The reflector assembly is connected to the inner side wall of the heat preservation mechanism. The light-emitting end of the laser assembly faces the mirror side of the reflector assembly. The reflector assembly is used to reflect the light source emitted by the laser assembly onto the optical sensors on the steel plate, and the mirror side of the reflector assembly is adjustable. This method, which uses laser detection in conjunction with optical sensors on the steel plate to transmit data signals, enables real-time and accurate measurement of the levelness and roundness of furnace rollers in high-temperature environments. It avoids the cumbersome manual measurement required by traditional methods, which necessitate shutting down the furnace to cool to room temperature, thus greatly improving production efficiency. Furthermore, it only requires adjusting the reflector assembly to achieve real-time adjustment of different detection points, eliminating the need for frequent movement of the laser assembly and extending the equipment's lifespan. The insulation mechanism provides constant temperature protection for the overall working environment of the equipment, improving the accuracy and reliability of the detection and ensuring the accuracy of the test results. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention without the top of the insulated box, according to one embodiment of the present invention.

[0022] Figure 2 This is a plan view of the overall structure of the present invention without the top of the insulated box, according to one embodiment of the present invention.

[0023] Figure 3 This is a cross-sectional view of the overall structure of the present invention with the top of the insulated box removed, according to one embodiment of the present invention.

[0024] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0025] Explanation of icon numbers:

[0026] 10. Conveying roller mechanism; 20. Detection mechanism; 210. Laser assembly; 211. Support frame; 212. Laser; 220. Reflector assembly; 221. Reflector; 222. Hinge seat; 223. Fixing frame; 224. Ball joint; 230. Optical sensor; 30. Insulation mechanism; 310. Insulation box; 320. Circulating fan; 330. Air duct; 40. Steel plate. Detailed Implementation

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please see the appendix Figure 1-3 An online detection structure for furnace roller deformation provided in one embodiment of this utility model includes a conveying roller mechanism 10, a detection mechanism 20, and a heat preservation mechanism 30, the specific scheme of which is as follows:

[0032] The heat preservation mechanism 30 has a heat preservation space, which covers the conveying roller mechanism 10. The detection mechanism 20 is built into the heat preservation space and is spaced apart on the side of the conveying roller mechanism 10. The conveying roller mechanism 10 is used to place the steel plate 40, and the furnace roller of the conveying roller mechanism 10 is detachably mounted. The detection mechanism 20 includes a laser assembly 210, a reflector assembly 220, and a plurality of optical sensors 230 spaced apart along the width direction of the conveying roller mechanism 10. An optical sensor 230 is connected to a steel plate 40. The laser assembly 210 and the reflector assembly 220 are spaced apart. The reflector assembly 220 is connected to the inner wall of the insulation mechanism 30. The light-emitting end of the laser assembly 210 is arranged facing the mirror side of the reflector assembly 220. The reflector assembly 220 is used to reflect the light source emitted by the laser assembly 210 onto the optical sensor 230 on the steel plate 40, and the mirror side of the reflector assembly 220 is adjustable.

[0033] Specifically, the online furnace roll deformation detection structure in this application includes a conveying roller mechanism 10, a detection mechanism 20, and a heat preservation mechanism 30. The conveying roller mechanism 10 is used to support the steel plate 40. The deformation degree of the furnace roll is detected by detecting the change and displacement of the steel plate 40 on the furnace roll in the conveying roller mechanism 10. The furnace roll on the conveying roller mechanism 10 can be disassembled and replaced at any time to replace it with a normal furnace roll for operation, or it can be replaced with a furnace roll with certain defects to detect the specific deformation location for targeted monitoring and subsequent maintenance. The heat preservation mechanism 30 is used to maintain a constant internal temperature to ensure that the equipment operates within a suitable temperature range, thereby ensuring detection accuracy. Therefore, the detection mechanism 20 is built into the heat preservation space of the heat preservation mechanism 30 to operate under a suitable constant temperature, while the conveying roller mechanism 10 passes through the heat preservation mechanism 30 to facilitate the entry and exit of the steel plate 40. The detection mechanism 20 is equivalent to detecting the furnace roll by cooperating with the detection steel plate 40.

[0034] The detection mechanism 20 includes a laser assembly 210, a reflector assembly 220, and multiple optical sensors 230. This non-contact "laser irradiation-reflected light collection" mode is well-suited for direct detection in high-temperature environments, eliminating the need for manual measurement after furnace shutdown and cooling, significantly improving production efficiency while avoiding interference with the normal operation of the furnace rollers. The laser 212 can be a semiconductor laser 212, outputting a near-infrared laser with a wavelength of 650 nanometers and a power of 5-50 milliwatts. The stability of the laser wavelength and power can be avoided. To prevent interference from light source fluctuations in the detection signal and provide a stable foundation for accurate detection, the laser assembly 210 is configured so that its emitting end faces the mirror side of the reflector assembly 220 to facilitate light reflection, which then reaches the optical sensor 230 on the steel plate 40. The reflector assembly 220 can collimate and focus the laser beam through reflection, with a focused spot size of 0.5-5 mm. This allows the laser to be precisely projected onto the designated detection point on the steel plate 40 (where the optical sensor 230 is located), avoiding detection deviations caused by optical path offset. Furthermore, the use of a reflector... The reflection of component 220 allows for adjustment of the mirror side of the reflector component 220 only, eliminating the need to adjust the laser component 210 and avoiding frequent adjustments to high-precision instruments such as the laser 212, thus protecting the instrument. The optical sensor 230 can be a high-precision optical encoder with a resolution of 0.1 micrometers and a range of ±100 millimeters, capable of capturing minute displacement changes in the furnace roller, ensuring accurate and reliable calculation of the furnace roller deformation. In a preferred embodiment of this application, the optical sensor 230 on the steel plate 40... The number of optical sensors is three. The three optical sensors 230 are equidistantly arranged along the width direction of the conveying roller mechanism 10 and are respectively distributed at both ends and the middle of the steel plate 40. Thus, the three detection points correspond to the inner edge, outer edge and center line of the furnace roller, respectively, and are used to detect the lateral offset and roundness error of the furnace roller. Preferably, the distance between two adjacent optical sensors 230 is 300mm to 500mm. The specific value can be selected by those skilled in the art according to the actual size of the furnace roller (corresponding to the length of the steel plate 40) and the actual points to be detected.

[0035] It is worth mentioning that, in order to achieve the requirement of high-precision detection, the steel plate 40 used for detection can be made of high-strength alloy steel with a thickness of 20-50 mm and a length of 500-1000 mm (which can be flexibly set according to the furnace roller size of the conveyor roller mechanism 10). The surface of the steel plate 40 is polished to a roughness Ra≤0.4 micrometers to ensure that the surface of the steel plate 40 is smooth and does not affect the detection, so that the test is accurate after the optical sensor 230 is installed. The detection mechanism 20 can be arranged in two opposite directions along the width direction of the conveyor roller mechanism 10 to improve the coverage and the ability to detect multiple lines simultaneously, thereby improving the detection efficiency.

[0036] In a preferred embodiment of the present invention, the heat preservation mechanism 30 includes a heat preservation box 310, the heat preservation box 310 having an opening through which the conveying roller mechanism 10 passes, and the reflector assembly 220 being connected to the inner wall of the heat preservation box 310.

[0037] It should be noted that the entire testing environment is enclosed by an insulated box 310 to form an insulated chamber. The internal insulated space is used for the installation of the testing mechanism 20 and the conveyor roller mechanism 10 is built through it. The opening on the insulated box 310 can be designed according to the structural dimensions of the conveyor roller mechanism 10 to ensure better insulation performance. The inner side wall of the insulated box 310 is used for the installation and fixation of the reflector assembly 220. Preferably, the insulated box 310 can be made of high-temperature ceramic fiber felt with a thickness of 50-100 mm, thus having good heat insulation performance.

[0038] In a preferred embodiment of the present invention, the reflector assembly 220 includes a reflector 221, a hinge seat 222, and a fixing frame 223. The fixing frame 223 is fixed to the top corner of the insulation box 310. The hinge seat 222 is fixed to the fixing frame 223 and is inclined downward. The back end of the reflector 221 is hinged to the hinge seat 222 to adjust the orientation of the mirror side.

[0039] It should be noted that the fixing bracket 223 serves as a support point for fixing the entire assembly. It is fixed to the top corner of the insulation box 310 so that the reflector 221, after installation, has a downward tilt orientation, which better reflects the laser onto the optical sensor 230 of the steel plate 40. In addition to mounting the reflector 221, the hinge seat 222 can also be used to rotate and adjust the reflector 221 to adjust the mirror side orientation of the reflector 221, thereby changing the reflection point of the light source as needed. In a preferred embodiment of this application, a ball joint 224 can be installed and connected to the back end (back of the mirror side) of the reflector 221, and the hinge seat 222 also adopts a spherical hinge seat 222. In this way, the reflector 221 is ball-jointed with the hinge seat 222 through the ball joint 224 (spherical hinge), thereby realizing multi-angle flexible adjustment to improve the applicability and flexibility of the equipment.

[0040] In a preferred embodiment of the present invention, the laser assembly 210 includes a support frame 211 and a laser 212. The support frame 211 is spaced apart on the side of the conveying roller mechanism 10. The laser 212 is connected to the top of the support frame 211 and is rotatably arranged in the horizontal direction. The light-emitting end of the laser 212 faces the mirror side of the reflector 221.

[0041] It is worth noting that the support frame 211 is used to support the laser 212 to a certain height, so as to facilitate the cooperation between the laser 212's emitting end and the reflector 221. Preferably, the laser 212 can be installed with a horizontally rotating base at the bottom to finely adjust the orientation of the laser 212's emitting end when needed.

[0042] Furthermore, the insulation mechanism 30 also includes a circulating fan 320 and an air duct 330. A ventilation opening is provided on the side wall of the insulation box 310. The circulating fan 320 is connected to the inner side wall of the insulation box 310 and communicates with the ventilation opening. The air duct 330 is connected to the outer side wall of the insulation box 310 and communicates with the ventilation opening.

[0043] It should be noted that the circulating fan 320 can drive the air circulation inside the insulation box 310 to eliminate the problem of "uneven local temperature" inside, thereby maintaining a constant temperature environment inside the insulation box 310 and stabilizing the performance of the testing equipment. Connecting the air supply pipe 330 to the outside can facilitate the transfer of excess hot air to other places where it is needed in other processes, maintaining the repeated use of energy.

[0044] Furthermore, it also includes a temperature sensor, which is connected to the inner wall of the insulation box 310.

[0045] Understandably, the temperature sensor inside the insulation box 310 can monitor the temperature of the insulation space in real time to ensure that the internal temperature is stable and constant, and adjust the circulating fan 320 to regulate the temperature as needed.

[0046] It should be noted that during actual testing, a data transmission system and a control system can be set up. The data transmission system is used to receive signals transmitted by the optical sensor 230 in real time. This is achieved through a communication connection, specifically including an industrial Ethernet switch and a wireless communication module. The industrial Ethernet switch supports the Gigabit Ethernet protocol and has 10 Gigabit ports for connecting various sensors, the control system, and the laser 212, etc. The wireless communication module uses 5G communication technology to transmit the detection data to the control system in real time. During testing, the laser emitted by the laser 212 illuminates the surface of the steel plate 40 through the reflector assembly 220. The optical sensor 230 collects the reflected light signal in real time, which is then processed by the data acquisition system and transmitted to the control system. The control system calculates the displacement of each detection point based on the received data and compares it with a standard value to obtain the deformation of the furnace roller. Simultaneously, the temperature control system adjusts the temperature of the insulation device based on the detected temperature data to ensure that the equipment operates within a suitable temperature range. The above module system uses commonly known technologies, so specific details will not be elaborated further.

[0047] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An online detection structure for furnace roller deformation, characterized in that, It includes a conveyor roller mechanism, a detection mechanism, and a heat preservation mechanism; among which, The insulation mechanism has an insulation space, which covers the conveying roller mechanism. The detection mechanism is built into the insulation space and is spaced apart on the side of the conveying roller mechanism. The conveying roller mechanism is used to place steel plates, and the furnace rollers of the conveying roller mechanism are detachably installed. The detection mechanism includes a laser assembly, a reflector assembly, and multiple optical sensors spaced apart along the width direction of the conveyor roller mechanism. The optical sensors are connected to a steel plate. The laser assembly and the reflector assembly are spaced apart. The reflector assembly is connected to the inner wall of the insulation mechanism. The light-emitting end of the laser assembly faces the mirror side of the reflector assembly. The reflector assembly is used to reflect the light source emitted by the laser assembly onto the optical sensors on the steel plate, and the mirror side of the reflector assembly is adjustable.

2. The online detection structure for furnace roller deformation according to claim 1, characterized in that, The insulation mechanism includes an insulation box with an opening for the conveying roller mechanism to pass through, and the reflector assembly is connected to the inner wall of the insulation box.

3. The online detection structure for furnace roller deformation according to claim 2, characterized in that, The reflector assembly includes a reflector, a hinge base, and a mounting bracket. The mounting bracket is fixed to the top corner of the insulation box. The hinge base is fixed to the mounting bracket and tilted downwards. The back end of the reflector is hinged to the hinge base to adjust the orientation of the mirror surface.

4. The online detection structure for furnace roller deformation according to claim 3, characterized in that, The laser assembly includes a support frame and a laser. The support frame is spaced apart on the side of the conveyor roller mechanism. The laser is connected to the top of the support frame and is rotatably arranged in the horizontal direction. The laser's emitting end faces the mirror side of the reflector.

5. The online detection structure for furnace roller deformation according to claim 3, characterized in that, The reflector assembly also includes a ball joint connected to the back end of the reflector, and the reflector is spherically hinged to the hinge seat via the ball joint.

6. The online detection structure for furnace roller deformation according to claim 2, characterized in that, The insulation mechanism also includes a circulating fan and an air supply pipe. A ventilation opening is provided on the side wall of the insulation box. The circulating fan is connected to the inner side wall of the insulation box and communicates with the ventilation opening. The air supply pipe is connected to the outer side wall of the insulation box and communicates with the ventilation opening.

7. The online detection structure for furnace roller deformation according to claim 1, characterized in that, The number of detection mechanisms is two, and the two detection mechanisms are arranged opposite each other along the width direction of the conveying roller mechanism.

8. The online detection structure for furnace roller deformation according to claim 1, characterized in that, The steel plate has three optical sensors, which are equidistantly arranged along the width of the conveying roller mechanism and distributed at both ends and the middle of the steel plate.

9. The online detection structure for furnace roller deformation according to claim 8, characterized in that, The spacing between two adjacent optical sensors is 300mm to 500mm.

10. The online detection structure for furnace roller deformation according to claim 2, characterized in that, It also includes a temperature sensor, which is connected to the inner wall of the insulation box.

Images