Roller horizontal centrifugal casting multi-degree-of-freedom intelligent infrared temperature measuring device and process method
By integrating a multi-degree-of-freedom intelligent infrared temperature measurement device with a control system, the problem of accurate temperature detection during the horizontal centrifugal casting process of rolls was solved, thereby improving the forming quality of rolls and ensuring production safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANGANG ROLLER CO LTD
- Filing Date
- 2026-03-12
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies make it difficult to achieve precise temperature control during the horizontal centrifugal casting process of rolls, resulting in poor roll forming quality and microstructure, and easily leading to defects such as coarse grains, compositional segregation, porosity, and shrinkage cavities.
Design a multi-degree-of-freedom intelligent infrared temperature measurement device, including lifting, horizontal feeding and axial feeding moving mechanisms, combined with a multi-degree-of-freedom infrared measurement mechanism, to realize three-dimensional spatial movement in X, Y and Z and omnidirectional multi-angle rotation, and to perform real-time temperature monitoring and automatic decision-making through PLC and DCS control systems.
It enables multi-directional, blind-angle-free temperature detection during the centrifugal casting process of rolls, reduces single-point temperature measurement errors, improves temperature detection accuracy, avoids casting defects caused by abnormal temperatures, and ensures roll quality and production safety.
Smart Images
Figure CN122016053A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of intelligent infrared temperature measurement technology, specifically to a multi-degree-of-freedom intelligent infrared temperature measurement device and process method for horizontal centrifugal casting of rolls. Background Technology
[0002] As a key industrial consumable in the steel industry, rolling mill rolls are consumed annually at a rate of approximately 800,000 to 1.2 million tons, creating a market space of about 30 to 40 billion yuan. In terms of product structure, hot-rolled work rolls account for the largest share, at about 55%, followed by cold-rolled work rolls at 25%, and support rolls at about 20%. Meanwhile, approximately 600,000 to 700,000 tons of scrap rolling mill rolls are generated annually. Of these, 30% are directly scrapped and recycled due to problems such as cracks or spalling, 40% can be recycled through remelting, and the remaining 30% can be downgraded and reused after being repaired through remanufacturing processes such as welding and surface cladding.
[0003] Rolls are the core components of steel rolling production lines. Their service environment must withstand high loads, strong wear, and severe thermal shocks. The uniformity of internal structure, surface hardness, and metallurgical bonding quality directly determine the service life of the rolls and the precision of the rolled steel products. Horizontal centrifugal casting is the mainstream technology for preparing composite layer rolls. This process uses the centrifugal force generated by the high-speed rotating mold to make the high-alloy outer layer of molten metal spread evenly and solidify in a directional manner along the inner wall of the mold, while achieving metallurgical bonding with the inner matrix.
[0004] In the horizontal centrifugal casting process, temperature is the core control parameter that affects the forming quality, microstructure and metallurgical bonding effect of the rolls. Infrared temperature measurement technology combined with multi-degree-of-freedom intelligent control is a key technical path to overcome the limitations of traditional temperature measurement methods and achieve precise temperature control in the roll casting process.
[0005] The outer layer of the roll needs to form a uniform and fine martensitic or bainitic structure to ensure wear resistance, while the inner layer needs to form a tough pearlitic or ferrite structure to withstand rolling loads. During centrifugal casting, the solidification rate of the melt under centrifugal force is directly related to the temperature gradient. Excessive temperature leads to a slow solidification rate, resulting in coarse grains, compositional segregation, and reduced roll hardness and wear resistance. Insufficient temperature results in insufficient melt fluidity, easily causing defects such as porosity and shrinkage cavities. Simultaneously, the metallurgical interface between the outer and inner alloy layers is prone to forming brittle phases, leading to spalling and cracking during roll service. Therefore, accurately measuring the casting timing of the intermediate and core layers, i.e., the cooling temperature, through a temperature measurement system has a significant impact on the quality of centrifugal casting. Summary of the Invention
[0006] The purpose of this invention is to provide a multi-degree-of-freedom intelligent infrared temperature measurement device and process method for horizontal centrifugal casting of rolls, which can achieve flexible movement in three directions: X, Y, and Z axes, and simultaneously support omnidirectional multi-angle rotation. Based on this adjustment capability, the device can collect multi-point, dead-angle-free temperature data from different parts of the alloy layer on the inner wall of the cold mold in centrifugal casting of rolls. By averaging multiple sets of measurement data, the error of single-point temperature measurement is effectively reduced, and the accuracy of temperature detection is significantly improved.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-degree-of-freedom intelligent infrared temperature measurement device for horizontal centrifugal casting of rolls, comprising a cold mold, a temperature measurement component, a cold mold drive motor, a cold mold universal coupling, and a cold mold idler roller, and further comprising: The lifting mechanism is used to drive the temperature measuring component to move up and down along the Z-axis. The horizontal feed mechanism can drive the temperature measuring component to move in the Y-axis direction; An axial feed mechanism is used to drive the temperature measuring component to move along the X direction, and cooperates with the lifting mechanism and the horizontal feed mechanism to realize three-dimensional spatial movement in X, Y, and Z directions. The multi-degree-of-freedom infrared measurement mechanism has a temperature measuring head that supports omnidirectional and multi-angle rotation.
[0008] Preferably, the lifting mechanism consists of a base, a lifting screw, a lifting rotary motor, a lifting plate, and a lifting coupling. The lifting rotary motor is fixed to the surface of the base, the output shaft of the lifting rotary motor is fixed to the input end of the lifting coupling, the output end of the lifting coupling is fixed to the lifting screw, and the lifting plate is threadedly connected to the surface of the lifting screw.
[0009] Preferably, the multi-degree-of-freedom infrared measurement mechanism consists of a rotating long plate, a drive motor, a triangular base, a rotating middle plate, a rotating short plate, and an infrared temperature measuring device probe. The rotating long plate is fixed to the output shaft of the drive motor, and the infrared temperature measuring device probe is fixed to the surfaces of the rotating long plate, the rotating middle plate, and the rotating short plate.
[0010] Preferably, the axial feed movement mechanism consists of a slide rail, a slider, a horizontal moving screw, a horizontal coupling, and a horizontal rotary motor. The V-shaped slider is slidably connected to the inner wall of the V-shaped slide rail. The output shaft of the horizontal rotary motor is fixed to the input end of the horizontal coupling. The output shaft end of the horizontal coupling is fixed to the horizontal moving screw.
[0011] Preferably, the configuration of the horizontal feed moving mechanism is the same as that of the axial feed moving mechanism.
[0012] Preferably, the number of drive motors is three, and the total number of rotating long plates, rotating middle plates and rotating short plates is three, and their lengths are different.
[0013] Preferably, the slide and slider are designed in a V-shape.
[0014] A multi-degree-of-freedom intelligent infrared temperature measurement process for horizontal centrifugal casting of rolls includes the following steps: Step 1: Drive the infrared temperature probe to move flexibly along the three-dimensional directions of X-axis, Y-axis and Z-axis through the lifting mechanism, horizontal feed moving mechanism and axial feed moving mechanism, so as to cover different detection areas on the inner wall surface of the centrifugal casting rotating cold mold and achieve comprehensive temperature monitoring without dead angles; Step 2: The infrared temperature probe monitors the surface temperature of the melt and the temperature at the interface between the inner and outer layers in real time during the centrifugal casting process of the rolls. The probe position is dynamically adjusted to ensure the accuracy of key data such as alloy solidification temperature and liquidus temperature. Step 3: Deeply integrate multi-degree-of-freedom infrared temperature measurement with PLC and DCS control systems to form closed-loop control. When the monitored temperature reaches the preset threshold, the system triggers an alarm. Step 4: Relying on the remote control of the multi-degree-of-freedom parallel adjustment mechanism and the non-contact characteristics of infrared temperature measurement, all-weather, unmanned temperature measurement is achieved. When the equipment malfunctions or the temperature is abnormal, the multi-degree-of-freedom mechanism drives the probe to a safe position and issues an early warning.
[0015] Preferably, in step two, the temperature signal collected by the infrared thermometer is used to precisely control the timing of adding the barium silicate inoculant to the core layer casting and the cold-type shutdown time.
[0016] Preferably, in step three, the PLC and DCS control system can automatically identify risks caused by abnormal temperatures, such as casting defects like porosity, shrinkage cavities, cracking, and looseness caused by temperature runaway.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention is equipped with an infrared temperature measuring device. Compared with traditional temperature measuring devices, this intelligent infrared temperature measuring device has a multi-angle rotation adjustment function, which can realize multi-directional and multi-angle temperature detection without dead angles. It can accurately collect differentiated temperature data for different parts of the alloy layer on the inner wall surface of the centrifugal casting rotating cold mold, and transmit the collected temperature information to the central control center in real time. The control system analyzes and judges according to the preset process parameters, and then automatically makes decisions and issues execution instructions for subsequent processes. Based on the temperature signal, it can accurately control the timing of adding the barium silicon inoculant in the core layer casting and the cold mold stop time.
[0018] 2. This invention innovatively integrates the intelligent infrared temperature measurement device with the lifting mechanism, the horizontal moving device, and the axial feeding moving mechanism, giving the temperature measurement system flexible movement capabilities with multiple degrees of freedom, thereby greatly expanding the coverage and accuracy of temperature detection.
[0019] 3. This intelligent infrared temperature measurement device can transmit the collected temperature data to the central control center in real time. Once the temperature reaches the preset threshold, the system will immediately trigger an alarm, thereby effectively avoiding casting defects caused by abnormal temperature and ensuring and improving the quality of the finished products from the centrifugal casting of rolls.
[0020] 4. The infrared temperature measurement system equipped in this invention can realize all-weather, unmanned, and precise temperature monitoring in centrifugal casting of rolls. It can not only extend the continuous operation time and improve production efficiency, but also significantly reduce the input of human resources. At the same time, it can effectively avoid workers working in high-temperature and dangerous environments and effectively protect the lives of personnel. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure in this invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 For the present invention Figure 1 Enlarged structural diagram at point I; Figure 4 For the present invention Figure 1 Enlarged structural diagram at point II; Figure 5 This is a top view of the structure in this invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point III; Figure 7 This is a partial structural diagram of the present invention.
[0022] In the diagram: 1. Base; 2. Lifting plate; 3. Lifting screw; 4. Lifting coupling; 5. Lifting rotary motor; 6. Position sensor; 7. Drive motor; 8. Triangular seat; 9. Rotating long plate; 10. Rotating middle plate; 11. Rotating short plate; 12. Infrared temperature measuring device probe; 13. Horizontal rotary motor; 14. Cold-type drive motor; 15. Cold-type universal coupling; 16. Cold-type idler roller; 17. Horizontal shaft; 18. Cold-type; 19. Horizontal moving screw; 20. Slide rail; 21. Slider; 22. Horizontal coupling. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-7 As shown, a multi-degree-of-freedom intelligent infrared temperature measurement device for horizontal centrifugal casting of rolls includes a cold mold 18, a temperature measuring component, a cold mold drive motor 14, a cold mold universal coupling 15, and a cold mold idler roller 16. It also includes a lifting mechanism, a horizontal feed moving mechanism, an axial feed moving mechanism, and a multi-degree-of-freedom infrared measurement mechanism. The lifting mechanism is used to drive the temperature measuring component to move up and down along the Z-axis. The horizontal feed moving mechanism can drive the temperature measuring component to move in the Y-axis direction. The axial feed moving mechanism is used to drive the temperature measuring component to move along the X-axis. It works in conjunction with the lifting mechanism and the horizontal feed moving mechanism to realize three-dimensional spatial movement in X, Y, and Z. The temperature measuring head of the multi-degree-of-freedom infrared measurement mechanism supports omnidirectional and multi-angle rotation. The surface of the cold mold idler roller 16 is also provided with a horizontal shaft 17 to transmit power to another set of cold mold idler rollers 16.
[0025] Specifically, the lifting mechanism consists of a base 1, a lifting screw 3, a lifting rotary motor 5, a lifting plate 2, and a lifting coupling 4. The lifting rotary motor 5 is fixed to the surface of the base 1. The output shaft of the lifting rotary motor 5 is fixed to the input end of the lifting coupling 4. The output end of the lifting coupling 4 is fixed to the lifting screw 3. The lifting plate 2 is threadedly connected to the surface of the lifting screw 3. When the synchronous motor starts, it drives the lifting screw to rotate, thereby driving the lifting support plate to move smoothly up and down, realizing displacement adjustment in the Z-axis direction.
[0026] Furthermore, the multi-degree-of-freedom infrared measurement mechanism consists of a rotating long plate 9, a drive motor 7, a triangular base 8, a rotating middle plate 10, a rotating short plate 11, and an infrared temperature measuring device probe 12. The rotating long plate 9 is fixed to the output shaft of the drive motor 7, and the infrared temperature measuring device probe 12 is fixed to the surfaces of the rotating long plate 9, the rotating middle plate 10, and the rotating short plate 11. When the drive motor rotates, it drives the three rotating plates to rotate synchronously. The rotating plates are connected to the infrared temperature measuring probe, and the infrared temperature measuring probe can be rotated in all directions through the linkage of the rotating plates. There are three drive motors 7 and three rotating long plates 9 of different lengths.
[0027] Furthermore, the axial feed movement mechanism consists of a slide rail 20, a slider 21, a horizontal moving screw 19, a horizontal coupling 22, and a horizontal rotary motor 13. The slider 21 is slidably connected to the inner wall of the slide rail 20. The output shaft of the horizontal rotary motor 13 is fixed to the input end of the horizontal coupling 22. The output shaft end of the horizontal coupling 22 is fixed to the horizontal moving screw 19. When the horizontal rotary motor rotates, it drives the horizontal moving screw to rotate, driving the V-shaped slider to move along the V-shaped slide rail, thereby realizing the horizontal displacement adjustment in the X-axis direction. The slide rail 20 and the slider 21 are designed in a V-shape. A position sensor 6 is fixed at the end of the slide rail 20 to monitor the position of the slider 21.
[0028] Furthermore, the configuration of the horizontal feed moving mechanism is the same as that of the axial feed moving mechanism.
[0029] A multi-degree-of-freedom intelligent infrared temperature measurement process for horizontal centrifugal casting of rolls includes the following steps: Step 1: First, the cold forming device starts working. The cold forming drive motor 14 drives the cold forming universal coupling 15 to rotate, and the cold forming universal coupling 15 drives the cold forming roller 16 to rotate. The cold forming 18 rotates with the roller 16 by its own friction, thus realizing horizontal centrifugal casting. Step 2: At the same time, the lifting mechanism begins to function. The lifting rotary motor 5 drives the lifting coupling 4 to rotate, and the lifting coupling 4 drives the lifting screw 3 to rotate. At this time, the lifting plate 2 will move up and down, driving the multi-degree-of-freedom infrared measurement mechanism, the horizontal feed moving mechanism, and the axial feed moving mechanism to move up and down, thus realizing the Z-axis up and down movement function. Step 3: At the same time, when the lifting mechanism is working, the axial feed moving mechanism also starts to move. The horizontal rotary motor 13 drives the horizontal coupling 22 to rotate, causing the horizontal moving screw 19 to rotate, allowing the slider 21 to move axially. The axial feed moving mechanism and the horizontal feed moving mechanism cooperate with each other. When the axial feed moving mechanism moves, the horizontal feed moving mechanism will also move accordingly, thereby realizing the movement in the X-axis direction. Step 4: At the same time, when the axial feed moving mechanism is working, the horizontal feed moving mechanism also begins to move. The horizontal rotary motor 13 drives the horizontal coupling 22 to rotate, causing the horizontal moving screw 19 to rotate, allowing the V-shaped slider 21 to move axially. The horizontal feed moving mechanism cooperates with the multi-degree-of-freedom infrared measurement mechanism. When the horizontal feed moving mechanism is working, it will drive the multi-degree-of-freedom infrared measurement mechanism to achieve movement in the Y-axis direction. Step 5: At the same time, the multi-degree-of-freedom infrared measurement mechanism will perform temperature measurement. By driving the motor 7 to rotate, the rotating long plate 9 will rotate together, and the rotating middle plate 10 and the rotating short plate 11 will rotate. The infrared temperature measuring rotating short plate 11 is connected to the infrared temperature measuring device probe 12. The infrared temperature measuring motor 7 will measure the temperature from multiple directions at different speeds.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-degree-of-freedom intelligent infrared temperature measurement device for horizontal centrifugal casting of rolls, comprising a cold mold (18), a temperature measurement component, a cold mold drive motor (14), a cold mold universal coupling (15), and a cold mold idler roller (16), characterized in that, Also includes: The lifting mechanism is used to drive the temperature measuring component to move up and down along the Z-axis. The horizontal feed mechanism can drive the temperature measuring component to move in the Y-axis direction; An axial feed mechanism is used to drive the temperature measuring component to move along the X direction, and cooperates with the lifting mechanism and the horizontal feed mechanism to realize three-dimensional spatial movement in X, Y, and Z directions. The multi-degree-of-freedom infrared measurement mechanism has a temperature measuring head that supports omnidirectional and multi-angle rotation.
2. The multi-degree-of-freedom intelligent infrared temperature measuring device for horizontal centrifugal casting of rolls according to claim 1, characterized in that: The lifting mechanism consists of a base (1), a lifting screw (3), a lifting rotary motor (5), a lifting plate (2), and a lifting coupling (4). The lifting rotary motor (5) is fixed to the surface of the base (1). The output shaft of the lifting rotary motor (5) is fixed to the input end of the lifting coupling (4). The output end of the lifting coupling (4) is fixed to the lifting screw (3). The lifting plate (2) is threadedly connected to the surface of the lifting screw (3).
3. The multi-degree-of-freedom intelligent infrared temperature measuring device for horizontal centrifugal casting of rolls according to claim 1, characterized in that: The multi-degree-of-freedom infrared measurement mechanism consists of a rotating long plate (9), a drive motor (7), a triangular seat (8), a rotating middle plate (10), a rotating short plate (11), and an infrared temperature measuring device probe (12). The rotating long plate (9) is fixed to the output shaft of the drive motor (7), and the infrared temperature measuring device probe (12) is fixed to the surfaces of the rotating long plate (9), the rotating middle plate (10), and the rotating short plate (11).
4. The multi-degree-of-freedom intelligent infrared temperature measuring device for horizontal centrifugal casting of rolls according to claim 1, characterized in that: The axial feed movement mechanism consists of a slide rail (20), a slider (21), a horizontal moving screw (19), a horizontal coupling (22), and a horizontal rotary motor (13). The V-shaped slider (21) is slidably connected to the inner wall of the V-shaped slide rail (20). The output shaft of the horizontal rotary motor (13) is fixed to the input end of the horizontal coupling (22). The output shaft end of the horizontal coupling (22) is fixed to the horizontal moving screw (19).
5. The multi-degree-of-freedom intelligent infrared temperature measuring device for horizontal centrifugal casting of rolls according to claim 1, characterized in that: The configuration of the horizontal feed moving mechanism is the same as that of the axial feed moving mechanism.
6. The multi-degree-of-freedom intelligent infrared temperature measuring device for horizontal centrifugal casting of rolls according to claim 3, characterized in that: The number of drive motors (7) is three, and the total number of rotating long plates (9), rotating middle plates (10) and rotating short plates (11) is three, and their lengths are different.
7. The multi-degree-of-freedom intelligent infrared temperature measuring device for horizontal centrifugal casting of rolls according to claim 4, characterized in that: The slide (20) and slider (21) are designed in a V-shape.
8. A multi-degree-of-freedom intelligent infrared temperature measurement process for horizontal centrifugal casting using rolls, characterized in that, The process includes the following steps: Step 1: Drive the infrared temperature probe to move flexibly along the three-dimensional directions of X-axis, Y-axis and Z-axis through the lifting mechanism, horizontal feed moving mechanism and axial feed moving mechanism, so as to cover different detection areas on the inner wall surface of the centrifugal casting rotating cold mold and achieve comprehensive temperature monitoring without dead angles; Step 2: The infrared temperature probe monitors the surface temperature of the melt and the temperature at the interface between the inner and outer layers in real time during the centrifugal casting process of the rolls. The probe position is dynamically adjusted to ensure the accuracy of key data such as alloy solidification temperature and liquidus temperature. Step 3: Deeply integrate multi-degree-of-freedom infrared temperature measurement with PLC and DCS control systems to form closed-loop control. When the monitored temperature reaches the preset threshold, the system triggers an alarm. Step 4: Relying on the remote control of the multi-degree-of-freedom parallel adjustment mechanism and the non-contact characteristics of infrared temperature measurement, all-weather, unmanned temperature measurement is achieved. When the equipment malfunctions or the temperature is abnormal, the multi-degree-of-freedom mechanism drives the probe to a safe position and issues an early warning.
9. The multi-degree-of-freedom intelligent infrared temperature measurement process for horizontal centrifugal casting of rolls according to claim 8, characterized in that: In step two, the timing of adding the barium silicon inoculant and the cold-type shutdown time are precisely controlled by the temperature signal collected by the infrared temperature measuring device.
10. The multi-degree-of-freedom intelligent infrared temperature measurement process for horizontal centrifugal casting of rolls according to claim 8, characterized in that: In step three, the PLC and DCS control system can automatically identify risks caused by abnormal temperatures, such as casting defects like porosity, shrinkage cavities, cracking, and looseness caused by uncontrolled temperature.