CN110479771B - Electronic temperature control roller with flexible convexity regulation and control - Google Patents
Electronic temperature control roller with flexible convexity regulation and control Download PDFInfo
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- CN110479771B CN110479771B CN201910676190.1A CN201910676190A CN110479771B CN 110479771 B CN110479771 B CN 110479771B CN 201910676190 A CN201910676190 A CN 201910676190A CN 110479771 B CN110479771 B CN 110479771B
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- 230000033228 biological regulation Effects 0.000 title description 16
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 125000006850 spacer group Chemical group 0.000 claims abstract 4
- 239000004065 semiconductor Substances 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 239000000112 cooling gas Substances 0.000 claims description 3
- 238000007791 dehumidification Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
- B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
本发明提出了一种电子控温的辊凸度柔性调控轧辊，该轧辊包括带有通心孔的轧辊主体、电子温控环、定距环、冷却管路、滑环、温度传感器和温度检测与控制组件。其中电子温控环布置于轧辊主体的轴向通孔内，经由滑环独立供电，可在轧辊主体的中心通孔孔壁上产生局部冷端或热端，进而产生相应的局部负凸度或局部正凸度，并且冷端、热端可相互配合形成环流，具有较强的轴向热传递限制功能，相比于现有技术，本发明具有更强的局部板形调控能力，并可解决辊内温度轴向过度传递造成的辊型波动问题。
The invention provides an electronic temperature-controlled roll crown flexible control roll. The roll includes a roll body with a through-core hole, an electronic temperature control ring, a spacer ring, a cooling pipeline, a slip ring, a temperature sensor and a temperature detector. with control components. The electronic temperature control ring is arranged in the axial through hole of the main body of the roll, and is independently powered by the slip ring, which can generate a local cold end or hot end on the hole wall of the central through hole of the main body of the roll, and then generate the corresponding local negative convexity or The local positive convexity, and the cold end and the hot end can cooperate with each other to form a circulation, which has a strong axial heat transfer limiting function. The problem of roll shape fluctuation caused by excessive axial transfer of temperature in the roll.
Description
Technical Field
The invention relates to the technical field of steel rolling equipment in the metallurgical industry, in particular to an electronic temperature control roller with flexible regulation and control of roller convexity.
Background
The problem of plate shape is a core problem affecting the quality of the plate strip product. In order to further improve the quality of plate and strip products and the yield of the plate and strip products, the steel manufacturing industry generally adopts regulating and controlling technologies such as a hydraulic roll bending technology, a CVC series technology, a segmented cooling series technology, a VC series technology, a DSR series technology and the like to regulate and control the roll shape and further regulate and control the plate shape. The CVC series technology processes original roller convexity on a roller and changes the shape of a roller gap by matching with a shifting roller so as to realize plate shape regulation, but the technology has higher requirement on the original roller convexity, the roller abrasion damages the original roller shape of the CVC roller, the shape of the roller gap after the shifting roller is applied is changed, and the fluctuation of the plate shape regulation effect is further caused; the VC series technology and the DSR series technology realize the micro-scale roller convexity regulation and control by means of internal driving hydraulic pressure, but the technologies have high requirements on internal hydraulic elements, high manufacturing cost and limited regulation and control areas.
At present, various roll shape regulation technologies with electric heating sources are successively proposed in the United states, Japan and the like, and local convexity is formed on the roll surface in a mode of locally heating the inner hole of the roll so as to solve the problem of local plate shape. The inventor also provides a patent for a roller capable of flexibly adjusting the roller profile curve (CN102527727A), and the invention uses an internal source electromagnetic expansion rod as a regulating element and realizes the roller profile regulation by means of thermal expansion and an internal constraint mechanism. However, the electric heating internal source roll shape regulation technology proposed in the U.S. and Japan and the invention patent of 'a roll capable of flexibly regulating roll shape curve' (CN102527727A) proposed by the inventor are lack of roll axial temperature control mechanism, and the axial excessive transmission of the temperature in the roll is easy to occur during long-term service, so that the roll shape fluctuation is caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a roller which has lower manufacturing cost and reliable work and can stably maintain a roller profile curve.
In order to solve the technical problem, the invention provides an electronic temperature control roller with flexibly regulated convexity, which comprises a roller main body with a through hole, an electronic temperature control ring, a distance ring, a cooling pipeline, a slip ring, a temperature sensor and a temperature detection and control assembly, wherein the electronic temperature control ring is arranged on the roller main body;
the electronic temperature control ring is independently powered by a slip ring and is arranged in the axial through hole of the roller main body, the outer ring surface of the electronic temperature control ring is tightly matched with the axial through hole of the roller main body, and the inner ring surface of the electronic temperature control ring is tightly matched with the cooling pipeline; the temperature sensors are respectively arranged on the outer ring surface and the inner ring surface of the electronic temperature control ring and are used for monitoring the temperature of the inner ring surface and the outer ring surface in real time;
the cooling pipeline is provided with a radial through hole which penetrates through the through hole of the roller main body, and one end of the cooling pipeline is connected with the slip ring and is used as a passage of a connecting line of the electronic temperature control ring and the temperature sensor;
the distance rings are arranged between the electronic temperature control rings;
the slip ring is arranged at one end in the axial through hole of the roller main body and connected with one end of the cooling pipeline, the temperature sensor transmits the acquired temperature signal to the temperature detection and control assembly through the slip ring, and the electronic temperature control ring is connected with a power supply device through the slip ring.
Preferably, the electronic temperature control ring comprises an annular N-type semiconductor and an annular P-type semiconductor, and the two annular semiconductors generate temperature difference after being electrified to form a cold end or a hot end.
Preferably, the electronic temperature control rings are used in groups, each group has an odd number of the electronic temperature control rings, if the inner ring of the nth electronic temperature control ring in the group is an annular N-type semiconductor and the outer ring is an annular P-type semiconductor, the inner ring of the (N + 1) th electronic temperature control ring is an annular P-type semiconductor and the outer ring is an annular N-type semiconductor, and if the inner ring of the mth group of electronic temperature control rings at both ends is an annular N-type semiconductor and the outer ring is an annular P-type semiconductor, the inner ring of the (m + 1) th group of electronic temperature control rings at both ends is an annular N-type semiconductor and the outer ring is an annular P-type semiconductor.
Preferably, the roll body is made of forged steel or cast steel.
Preferably, the cooling pipeline is made of a material with strong heat conduction capability.
Preferably, the cooling line is cooled by a cooling gas.
Preferably, the distance ring is made of a material with a dehumidifying function.
Preferably, the distance ring surface is coated with a heat insulating material.
Compared with the prior art, the invention has the following beneficial effects:
the invention can generate local cold ends or hot ends on the wall of the central through hole of the roller main body by means of the electronic temperature control ring, the cold ends can form shrinkage on the radial direction of the roller main body, the hot ends form bulging on the roller main body, and then generate corresponding local negative convexity or local positive convexity, and then form high-order roller profile curves of various forms through multi-section combined regulation and control; the cold end and the hot end on the inner hole wall of the roller can form a temperature gradient in the axial direction of the roller, and a reverse temperature gradient can be formed on the cooling pipeline, so that the construction of local temperature circulation is facilitated, the transmission of temperature in the axial direction of the roller is limited, and the long-term maintenance of electronic temperature control is ensured.
Drawings
FIG. 1 is a front sectional view of embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 of the present invention;
FIG. 3 is a schematic view showing an arrangement of electronic temperature control rings and the numbering of the electronic temperature control rings in embodiment 1 of the present invention;
FIG. 4 is an electronic temperature control schematic diagram of embodiment 1 of the present invention;
FIG. 5 is a schematic view showing the installation position of a temperature sensor on the electronic temperature control ring in embodiment 1 of the present invention;
FIG. 6 is a positive crown conditioner roll profile plot of example 1 of the present invention; and
FIG. 7 is a graph showing a negative crown dancer profile in example 2 of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1: positive crown control of electronic temperature controlled roll
The roll with the electronic temperature control and the flexible convexity regulation is shown in figures 1 and 2 and comprises a roll main body 1 with a through hole, a distance ring 2, an electronic temperature control ring 3, a temperature sensor 4, a cooling pipeline 5, a slip ring 6, a current path 7 and a temperature signal wire 8.
The electronic temperature control ring 3 is an inner layer combined ring and an outer layer combined ring, the inner layer ring is sleeved in the outer layer ring, and the two layers of ring structures are tightly matched; the outer ring surface of the electronic temperature control ring 3 keeps clearance fit with the through hole of the roller body 1. The two layers of combined ring structures of the electronic temperature control ring 3 are respectively an annular N-type semiconductor and an annular P-type semiconductor, when the temperature is regulated, the electronic temperature control forms of the electronic temperature control rings 31, 33, 34, 36, 37 and 39 are opposite to the electronic temperature control forms of the electronic temperature control rings 32, 35 and 38, and the temperature difference is generated between the inner and outer ring surfaces of the two conductors after the two conductors are electrified.
And the slip ring 6 is arranged at the end part of the roller and used for supplying power and regulating and controlling the electronic temperature control ring 3. The number of the guide ways on the slip ring 6 corresponds to the number of the electronic temperature control rings arranged in the roller. In the present embodiment, the signal lines of the sensors are also derived from the slip ring 6.
The external power supply device supplies power to the electronic temperature control ring through the slip ring 6, the power supply mode is that the power supply supplies power to the annular N-type semiconductor and the annular P-type semiconductor of the electronic temperature control ring, and the two annular semiconductors form a temperature difference so as to realize electronic temperature control. The inner ring surface of the electronic temperature control ring 3 is tightly matched with the outer pipe surface of the cooling pipeline 5, and heat-conducting silica gel is added at the joint gap of the inner ring surface and the outer pipe surface to form a stable heat exchange mechanism.
The arrangement form of the electronic temperature control rings of the present embodiment is shown in fig. 3, the electronic temperature control rings are used in a multi-ring combination, and the present embodiment has 3 groups of electronic temperature control rings, each group consisting of 3 electronic temperature control rings; the outer rings of the electronic temperature control rings 31, 33, 34, 36, 37 and 39 are ring-shaped P-type semiconductors, the inner rings are ring-shaped N-type semiconductors, the outer rings of the electronic temperature control rings 32, 35 and 38 are ring-shaped N-type semiconductors, and the inner rings are ring-shaped P-type semiconductors; the temperature control forms of the electronic temperature control rings at two sides, such as the electronic temperature control rings 31 and 33, in each group are opposite to the temperature control form of the electronic temperature control ring at the middle position, such as the electronic temperature control ring 32, and are used for forming a heat flow closed loop in the roller and the cooling pipeline.
As shown in fig. 4, the outer ring of the electronic temperature control ring 31 is an annular N-type semiconductor, the inner ring is an annular P-type semiconductor, the outer ring of the adjacent electronic temperature control ring 32 is an annular P-type semiconductor, the inner ring is an annular N-type semiconductor, the annular P-type semiconductor is a hot end after being energized, and the annular N-type semiconductor is a cold end, so that inside the roll body 1, the heat conduction direction is from the annular P-type semiconductor of the electronic temperature control ring 32 to the annular N-type semiconductor of the electronic temperature control ring 32, and a circular current is formed inside the roll; in the cooling pipeline 5, the heat conduction direction is from the annular P-type semiconductor of the electronic temperature control ring 31 to the annular N-type semiconductor of the electronic temperature control ring 32, and a circulation is formed on the cooling pipeline; the circulating current forms a plurality of complete circulating closed circuits. The construction of the circulation mechanism can effectively reduce the axial propagation of the temperature in the roller, further prolong the roller convexity retention time and improve the roller shape regulation efficiency.
As shown in fig. 5, two temperature sensors 41 and 42 are symmetrically disposed on the end surface of the electronic temperature control ring 3, and the two temperature sensors 41 and 42 respectively correspond to the outer ring end surface and the inner ring end surface of the electronic temperature control ring 3, and extract the temperature values of the two ring end surfaces in real time, and convert the temperature values into temperature signals. The temperature sensors 41 and 42 transmit the temperature signals in the form of analog signals to the external temperature control module via built-in signal lines. The external temperature control module can regulate and control according to a preset temperature target value and in combination with a temperature measured value, and when the measured temperature exceeds a preset temperature, the external temperature control module drives the power supply to stop the power supply of the electronic temperature control ring 3; when the measured temperature is lower than the preset temperature, the external temperature control module drives the power supply to continuously supply power to the electronic temperature control ring 3, so that the stability of the electronic temperature control process is ensured.
The roller main body is made of forged steel or cast steel. The cooling pipeline adopts the material that heat-conducting capacity is strong, and this embodiment adopts red copper material. The distance ring is made of a material with a dehumidifying function, and the ring surface is coated with a heat insulating material.
Each electronic temperature control ring 3 is independently powered by a power supply, independently transmits real-time signals to an external control module and is independently regulated, and actions of the electronic temperature control rings 3 are not interfered with each other. The installation of the electronic temperature control ring 3 is determined according to the plate shape requirement of the plate strip, and a plurality of electronic temperature control rings 3 can be installed in a plate width section with more plate shape problems. If the plate shape problem occurs, power supply regulation and control are carried out on the electronic temperature control ring 3 of the section so as to regulate and control the plate shape.
The electronic temperature control ring 3 is made of semiconductor materials. The electronic temperature control ring 3 generates local temperature difference to form inner bulging or inner shrinkage in the roller, so as to adjust the roller shape. In this embodiment, the temperature difference range of the electronic temperature control ring 3 should not exceed-50 to 90 ℃.
The cooling pipeline 5 is provided with a radial through hole, and a circuit for connecting the electronic temperature control ring 3 and the temperature sensor 4 is arranged in the radial through hole. And one side of the cooling pipeline 5 is connected with a slip ring 6, and cooling gas is introduced into the cooling pipeline from an external gas source. The distance ring 2 is arranged between the electronic temperature control rings 3; the distance ring 2 is coated with heat insulating material on the ring surface.
The positive crown controlled roll profile of this example is shown in FIG. 6.
In this embodiment, after the ring-shaped N-type and P-type semiconductors are energized, a local cold end or hot end can be generated on the wall of the central through hole of the roller main body, the cold end can form a contraction shape in the radial direction of the roller main body, the hot end can form an expansion shape on the roller main body, and then corresponding local negative convexity or local positive convexity is generated, and various forms of high-order roller profile curves are formed through multi-section combined regulation; the cold end and the hot end on the inner hole wall of the roller can form a temperature gradient in the axial direction of the roller, and a reverse temperature gradient can be formed on the cooling pipeline, so that the construction of local temperature circulation is facilitated, and the temperature circulation forms a plurality of complete local circulation closed circuits. The construction of the circulation mechanism can effectively reduce the axial propagation of the temperature in the roller, further prolong the roller convexity retention time, limit the transmission of the temperature in the axial direction of the roller, ensure the long-term retention of electronic temperature control and improve the roller shape regulation efficiency.
Example 2
This embodiment is substantially the same as embodiment 1, and is different from embodiment 1 in that: the outer rings of the electronic temperature control rings 31, 33, 34, 36, 37, 39 are ring-shaped N-type semiconductors, the inner rings are ring-shaped P-type semiconductors, the outer rings of the electronic temperature control rings 32, 35, 38 are ring-shaped P-type semiconductors, and the inner rings are ring-shaped N-type semiconductors. The electronic temperature control rings 31, 33, 34, 36, 37 and 39 form a plurality of hot ends on the axial through hole of the roller main body, and the electronic temperature control rings 32, 35 and 38 form cold ends for regulating and controlling the negative convexity.
The roll profile curve for negative crown control of this example is shown in FIG. 7.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the invention, it should be understood that various modifications and adaptations can be made by those skilled in the art without departing from the principles of the present application and should be considered as within the scope of the present application.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910676190.1A CN110479771B (en) | 2019-07-25 | 2019-07-25 | Electronic temperature control roller with flexible convexity regulation and control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910676190.1A CN110479771B (en) | 2019-07-25 | 2019-07-25 | Electronic temperature control roller with flexible convexity regulation and control |
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| CN110479771A CN110479771A (en) | 2019-11-22 |
| CN110479771B true CN110479771B (en) | 2020-05-22 |
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| CN111671120B (en) * | 2020-05-26 | 2025-01-24 | 同济大学 | A rotating conductive slip ring device for a wire drying machine |
| CN111671119B (en) * | 2020-05-26 | 2024-11-26 | 同济大学 | A wire drying machine with a conductive slip ring device |
| CN113560350B (en) * | 2021-07-20 | 2022-07-01 | 燕山大学 | A kind of roll wear self-healing device and control method thereof |
| CN113953327B (en) * | 2021-10-09 | 2022-10-18 | 燕山大学 | An electronic temperature control loop for internal cooling of roller type electromagnetic regulation technology |
| CN115254972A (en) * | 2022-09-27 | 2022-11-01 | 江苏时代新能源科技有限公司 | Roller and rolling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856826A (en) * | 1981-09-30 | 1983-04-04 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for controlling shape of roll |
| JPH02263507A (en) * | 1989-03-31 | 1990-10-26 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling roll |
| JPH02280909A (en) * | 1989-04-24 | 1990-11-16 | Nippon Steel Corp | Rolling roll and rolling method using the same roll |
| CN1931460A (en) * | 2006-09-29 | 2007-03-21 | 燕山大学 | Split plate profile instrument with piezomagnetic internal pores |
| CN102527727A (en) * | 2012-01-13 | 2012-07-04 | 燕山大学 | Roller with flexibly adjustable roller type curves |
| CN103568166A (en) * | 2013-11-01 | 2014-02-12 | 苏州泰科尼光伏材料有限公司 | Temperature control plastic cooling roller |
-
2019
- 2019-07-25 CN CN201910676190.1A patent/CN110479771B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856826A (en) * | 1981-09-30 | 1983-04-04 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for controlling shape of roll |
| JPH02263507A (en) * | 1989-03-31 | 1990-10-26 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling roll |
| JPH02280909A (en) * | 1989-04-24 | 1990-11-16 | Nippon Steel Corp | Rolling roll and rolling method using the same roll |
| CN1931460A (en) * | 2006-09-29 | 2007-03-21 | 燕山大学 | Split plate profile instrument with piezomagnetic internal pores |
| CN102527727A (en) * | 2012-01-13 | 2012-07-04 | 燕山大学 | Roller with flexibly adjustable roller type curves |
| CN103568166A (en) * | 2013-11-01 | 2014-02-12 | 苏州泰科尼光伏材料有限公司 | Temperature control plastic cooling roller |
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