CN111054752A - High-precision annular strip mill - Google Patents
High-precision annular strip mill Download PDFInfo
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- CN111054752A CN111054752A CN201911348735.2A CN201911348735A CN111054752A CN 111054752 A CN111054752 A CN 111054752A CN 201911348735 A CN201911348735 A CN 201911348735A CN 111054752 A CN111054752 A CN 111054752A
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- 238000005096 rolling process Methods 0.000 claims abstract description 106
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B5/00—Extending closed shapes of metal bands by rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/021—Twin mills
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Abstract
The invention relates to a high-precision annular strip mill, which consists of a main mill, a roll changing device, a mill base, a tension roll device, a side push roll system and a mill transmission, wherein the main mill comprises an assembling rack, an upper supporting roll balancing mechanism, an upper supporting roll, a lower supporting roll, an upper middle roll, a lower middle roll, an upper working roll and a lower working roll; when the rolling mill starts to work, firstly, the rolling mill is in an unloading state, then the annular strip is sleeved into the upper working roll and the tension roll, then the roll gap and the given tension are closed, the main rolling mill is started to rotate, and the rolling is finished through the combined action of the upper working roll, the lower working roll and the tension roll.
Description
Technical Field
The invention relates to the technical field of rolling mills, in particular to a high-precision annular strip rolling mill.
Background
The steel industry has made significant developments in the 20 th century, making steel materials the primary base material for global applications. In the development of the metallurgical industry for centuries, the steel rolling industry and technology, which is highly efficient, has made rolling always the main way of shaping steel in the steel industry. The rolling method for producing the steel has the advantages of high production rate, multiple varieties, strong continuity in the production process, easiness in realizing mechanization and automation and the like, and about 90 percent of the steel is produced by the rolling method. The rolling mill is equipment for realizing a metal rolling process, and generally refers to equipment for completing the whole process of rolled material production. The rolling mill mainly comprises a roller, a rolling mill housing, a bearing seat, a bearing, a workbench, a steel rolling guide, a rail seat, a roller adjusting device, an upper roller balancing device, a roller changing device and the like.
The first 18-high rolling mill in the world, called the Zhigh type rolling mill, was developed by sendzimir in 1979, and its core technology was the use of small diameter work rolls with side supports, and the intermediate rolls were movable. The first eighteen high roll mill of sendzimir corporation was a four high roll mill retrofit from the Waterbury Rolling Mills, retaining the original housing and back-up rolls, and replacing the work roll sections with Z-type assemblies assembled from side back-up rolls, backing bearings and smaller diameter work rolls. The research on the eighteen-roller rolling mill in China starts earlier, but is limited to the experimental property stage for a long time and is not applied to industrial production in a large scale. Of all the steel products demanded by the market, the plate and strip materials have a considerable specific gravity. The 1700mm is introduced from Japan in 1981 in China, and then a large number of hot continuous rolling and cold continuous rolling plate strip factories with advanced production processes rise rapidly. In 1990, the Beijing institute of metallurgical facilities transformed a four high mill from Lingyuan iron and steel company to an eighteen high mill. In 2011, the research institute of heavy machinery in china was a 1250mm hcs eighteen-roller single-stand reversible cold rolling mill unit developed by the compound material limited company of the south of the river, the dove tail. The eighteen-roller machine type technology has become mature through continuous improvement and perfection.
In recent years, with the further increase in the demand of cold-rolled thin materials in the market and the increasing demand of thin materials of stainless steel, plain carbon steel and nonferrous metals, multi-roll mills are becoming more and more popular among customers. The foreign Sendzimir type 20-roller rolling mill has the advantages of large rigidity of the rolling mill, smaller diameter of a working roller and capability of rolling thinner products. But also has its disadvantages: the opening degree of the rolling mill is small, the lubrication of rollers and strips is poor, the equipment is inconvenient to maintain, and the equipment cost is high; at present, no complete rolling mill equipment specially aiming at rolling of the annular strip is available in China.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a first rolling mill applied to rolling of annular strips, and the annular strip rolling mill can be used for rolling of all the annular strips, and the size of the roller can be changed according to the annular strips with different widths. The invention mainly aims at rolling of the annular strip, and adopts a constant tension control one-way rolling mode after the annular strip is sleeved into the upper working roll and the tension roll facing to the ultrathin narrow-width annular strip steel.
The invention relates to a high-precision annular strip mill, which consists of a main mill, a roll changing device, a mill base, a tension roll device, a side push roll system and a mill transmission device, wherein a support frame is arranged below the mill base, a fixed platform is arranged above the support frame, the main mill is arranged on the fixed platform, the main mill comprises an assembling frame, an upper support roll balancing mechanism, an upper support roll, a lower support roll, an upper middle roll, a lower middle roll, an upper working roll and a lower working roll, and the side push roll system is arranged on two sides of the upper working roll and the lower working roll; during rolling, the side pushing mechanism controlled precisely jacks the working rolls from two sides to the center through the side pushing beams and the back-up rolls at the front ends of the back-up bearings, the side pushing mechanism retracts during roll changing, the side pushing rolls are opened towards two sides, the roll changing device changes rolls, and the lower middle roll bearing block and the lower back-up roll bearing block of the roll changing device are both provided with rollers and provided with tracks on a rack; in a shutdown state, the upper supporting roll is lifted by using a balancing device, the opening degree is kept at about 20mm, a universal shaft coupling flange is tightly held by using a universal shaft clamping device, a rolling line of a rolling mill falls to the lowest position, the upper middle roll and the lower supporting roll fall on a track, and the lower middle roll is pulled out of a rack; when the rolling mill starts to work, the rolling mill is in an unloading state, the annular strip is sleeved into the upper working roll and the tension roll, then the roll gap and the given tension are closed, the main rolling mill is started to rotate, and the rolling is completed through the upper working roll, the lower working roll and the tension roll.
Furthermore, the tension roller device is arranged at the right end of the main rolling mill, a tension roller support is arranged at the lower end of the tension roller device, a tension device base is arranged above the tension roller support, a tension servo oil cylinder is arranged on the tension device base and fixed on the tension device base through bolts, and the front end of the tension servo oil cylinder is connected with the tension roller.
Further, the side pushing mechanism comprises a turntable, a telescopic rod, a side pushing rail, a side pushing beam and a telescopic fixed block; when the roller is replaced, the side pushing mechanism retracts back, and the side pushing roller system opens the two sides to replace the working roller; during installation, the rotary table is rotated to enable the side pushing blocks to move upwards along the side pushing rails, the side pushing beams are pushed upwards to enable the side pushing roller systems to be clamped towards the middle, and the roller systems are fixed.
Furthermore, the parts replaced by the roll changing device are an upper supporting roll, a lower supporting roll, an upper middle roll, a lower middle roll, an upper working roll and a lower working roll; the upper working roll and the lower working roll are small and have no bearing seats.
Furthermore, the side push roller system is positioned by two rows of backing bearings, the two rows of backing bearings are fixed on the side push beam through a mandrel and a saddle, and two ends of the side push beam are fixed on a lower middle roller bearing seat through a rotatable pin shaft; the side push roller system and the side push mechanism are fixed on the main rolling mill column through a pressure plate, and a metal bolt is installed on the pressure plate.
Furthermore, the upper supporting roller balance mechanism is of a balance beam type frame structure and is hung by two hydraulic cylinders, and the pressure of a hydraulic system is 8 MPa.
Further, the rolling mill transmission divides the transmission torque into the working rolls in the main rolling mill through the upper universal coupling and the lower universal coupling on the main reduction gearbox, and pushes the rolling mill to transmit.
The high-precision annular strip mill provided by the invention has the advantages that: the invention is a rolling mill applied to rolling annular strips, the rolling mode is that the annular strips are respectively sleeved on an upper working roll and a tension roll to carry out repeated circulating rolling so as to achieve the required length of the annular strips; secondly, the position moving speed of a tension roller in the annular strip rolling mill in the rolling process is synchronously matched with the rotating speed of a working roller, and a rolling mill roller system is more convenient to mount and dismount through a side pushing mechanism; and finally, a tension oil cylinder in the rolling mill is controlled by a servo oil cylinder, so that the stability of constant tension is ensured.
Drawings
FIG. 1 is a partial schematic view of a high precision ring strip mill according to the present invention;
FIG. 2 is a global view of a high precision ring strip mill according to the present invention;
fig. 3 is a diagram of a high-precision backing bearing of an annular strip mill according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to fig. 1, 2 and 3 and the working principle.
Referring to fig. 1 and 2, the high-precision annular strip mill comprises a main mill 100, a roll changing device 200, a mill base 300, a tension roll device 400, a side push roll system 500 and a mill transmission 600, wherein a support frame 301 is arranged below the mill base 300, a fixed platform 302 is arranged above the support frame 301, the main mill 100 is arranged on the fixed platform 302, and the fixed platform 302 plays a role in supporting the whole main mill 100, so that the operation of the device is more stable; a machine frame 101, an upper supporting roll balancing mechanism 120, an upper supporting roll 102, a lower supporting roll 112, an upper middle roll 103, a lower middle roll 113, an upper working roll 104 and a lower working roll 114 in the main rolling mill 100 cooperate with each other to finish rolling, and a side push roll system 500 is arranged on two sides of the upper working roll 104 and the lower working roll 114; during rolling, the side pushing mechanism 510 which is precisely controlled supports the working roll from two sides to the center through the side pushing beam 514 and the supporting roll 506 at the front end of the backing bearing 501, so that the stability of the working roll is ensured, the side pushing mechanism 510 retracts during roll changing, the side pushing roll system 500 is opened towards two sides, so that the roll changing device 200 is convenient to change rolls, the lower middle roll bearing seat 1131 and the lower supporting roll bearing seat 1121 of the roll changing device 200 are both provided with rollers 117, and a track is arranged on the frame 110; in a shutdown state, the upper supporting roll 102 is lifted by using a balancing device, the opening degree is kept at about 20mm, a universal shaft coupling flange is tightly held by using a universal shaft clamping device, a rolling line of a rolling mill falls to the lowest position, the upper middle roll 103 and the lower supporting roll 112 fall on a track, the lower middle roll 113 is manually pulled out from the frame 110, after a roll system is pulled out by changing the roll frame, the roll system is manually taken away, and the reverse operation is carried out according to the steps during roll loading; when the rolling mill starts to work, the rolling mill is in an unloading state, the annular strip is sleeved on the upper working roll 104 and the tension roll 401, then the roll gap and the given tension are closed, the main rolling mill 100 is started to rotate, and the required annular strip is rolled to the required length through the effect of the rolling force and the tension force of the upper working roll 104, the lower working roll 114 and the tension roll 401 together through repeated and cyclic rolling.
The tension roller device 400 is arranged at the right end of the main rolling mill 100, a tension roller support 401 is arranged at the lower end of the tension roller device 400, a tension device base 402 is arranged above the tension roller support 401, a tension servo oil cylinder 403 is arranged on the tension device base 402, the tension servo oil cylinder 403 is fixed on the tension device base 402 through a bolt 405, and the front end of the tension servo oil cylinder 403 is connected with the tension roller 404.
The side pushing mechanism 510 comprises a turntable 511, a telescopic rod 512, a side pushing rail 513, a side pushing beam 514 and a telescopic fixed block 515; when the roller is replaced, the side pushing mechanism 510 retracts back, and the side pushing roller system 500 opens the replacement working roller to two sides; during installation, the turntable 511 is rotated to move the side pushing block 516 upwards along the side pushing track 513, so as to push the side pushing beam 514 upwards to clamp the side pushing roller system 500 towards the middle and fix the roller system. In operation, the turntable 511 in the side pushing mechanism 510 is rotated clockwise, and the telescopic rod 512 moves upwards to drive the side pushing beam 514 above the telescopic fixed block 515 to move in the side pushing track 513, so that the mandrel 502 connected with the pin 504 and the two rows of backing bearings 501 of the saddle 503 push and clamp the working rollers.
The roller changing device 200 comprises an upper supporting roller 102, a lower supporting roller 112, an upper middle roller 103, a lower middle roller 113, an upper working roller 104 and a lower working roller 114, the upper working roller 104 and the lower working roller 114 are small and have no bearing seats, so that manual replacement is convenient during roller changing work, the side pushing mechanism 510 retracts during the roller changing device work, the side pushing roller system 500 is opened towards two sides, the roller changing device 200 is convenient to change rollers, and the lower middle roller bearing seat 1131 and the lower bearing seat 1121 of the roller changing device 200 are both provided with rollers 117 and provided with tracks on the frame 110; under the shutdown state, use balancing unit to lift upper supporting roll 102, the opening degree keeps about 20mm, use cardan shaft clamping device to hold the cardan shaft coupling flange tightly, the rolling mill rolling line falls to the lowest position, upper intermediate roll 103 and lower supporting roll 112 fall on the track, the artifical lower intermediate roll 113 of pulling out from the frame 110, through the roll change frame with the roll system back of pulling out, the manual work is taken away, when the roller, according to the opposite operation of above-mentioned step, roll change device 200 and side push roll system 500 and side push mechanism 510 combined action make roll change installation and dismantlement more convenient.
The side push roller system 500 is positioned by two rows of backing bearings 501, the two rows of backing bearings 501 are fixed on a side push beam 541 through a mandrel 502 and a saddle 503, and two ends of the side push beam 514 are fixed on a lower middle roller bearing seat 1131 through a rotatable pin 504; the side-push roller system 500 and the side-push mechanism 510 are fixed on a main rolling mill upright 521 through a pressure plate 520, metal bolts 522 are installed on the pressure plate 520, and the pressure plate 520 is fixed on the upright 521 through the metal bolts 522, so that the side-push roller system 500, the side-push mechanism 510 and various roller devices are more stable.
The upper supporting roll balancing mechanism 120 is of a balanced beam type frame structure and is hung by two hydraulic cylinders 121, the pressure of a hydraulic system is 8MPa, the upper supporting roll balancing mechanism 120 is arranged, the upper working roll and the upper supporting roll cannot fall down even if a rolling mill does not roll steel, meanwhile, the upper working roll and the upper supporting roll are tightly pressed by balancing force, the phenomenon that the upper working roll and the upper supporting roll are unstable in contact and vibrate when rolling is avoided, and the rolling stability is ensured.
The mill drive 600 distributes drive torque to work rolls in the main mill 100 through an upper universal coupling and a lower universal coupling on the main reduction gearbox, pushing the mill to drive. Because the annular strip is sleeved on the upper working roll 104 and the tension roll 404 to work, the tension servo oil cylinder 403 drives the tension roll 404 to work, the stability of constant tension is ensured, and the rolling mill is prevented from fluctuating during rolling.
A high-precision annular strip mill is composed of a main mill 100, a roll changing device 200, a mill base 300, a tension roll device 400, a side push roll system 500 and a mill transmission 600. When the rolling mill works, a tension servo oil cylinder 403 is arranged on a base 402 of a tension device of the tension roller device 400, the tension servo oil cylinder 403 is fixed on the base 402 of the tension device through a bolt 405, the front end of the tension servo oil cylinder 403 is connected with a tension roller 404, transmission torque is distributed into the main rolling mill 100 through the tension roller 404 under the action of the tension servo oil cylinder 403, then a roll gap and given tension are closed, the main rolling mill 100 is started to rotate, and the required length of the endless belt is rolled through repeated circulating rolling under the common rolling force and tension action of an upper working roller 104, a lower working roller 114 and the tension roller 401. When roll changing is carried out, the rotating disc 511 in the side pushing mechanism 510 rotates anticlockwise, the telescopic rod 512 moves downwards to drive the side pushing mechanism 510 to retract when the roll changing device works, the side pushing roll system 500 is opened towards two sides at the moment, roll changing of the roll changing device 200 is facilitated, the roll system is pulled out through the roll changing rack and then taken away, and roll changing is finished. When the roller is loaded, the rotating disc 511 in the side pushing mechanism 510 rotates clockwise, the telescopic rod 512 moves upwards to drive the side pushing beam 514 above the telescopic fixed block 515 to move in the side pushing track 513, so that the mandrel 502 connected with the pin 504 and the two lines of backing bearings 501 of the saddle 503 push and clamp the working roller, and the roller loading is finished.
The invention relates to a rolling mill applied to rolling annular strips, which is characterized in that the rolling mode is that the annular strips are respectively sleeved on an upper working roll and a tension roll to be repeatedly and circularly rolled so as to achieve the required length of the annular strips. Compared with four-roller and six-roller rolling mills, the eighteen-roller rolling mill has smaller roller diameter, small deformation area during rolling, small rolling force, suitability for rolling materials difficult to deform and thin strip steel, high single-rolling-pass reduction rate, capability of reducing annealing times and energy consumption. Compared with a twenty-high roll mill, the rolling mill has the advantages of no problems of small opening degree, difficult threading and the like, high response speed of pressing action and higher thickness control precision. In addition, the eighteen-roller rolling mill has great advantages in terms of equipment weight and equipment processing difficulty and easiness in view of economy.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A high-precision annular strip rolling mill comprises a main rolling mill (100), a roll changing device (200), a rolling mill base (300), a tension roll device (400), a side push roll system (500) and a rolling mill transmission (600), and is characterized in that a support frame (301) is arranged below the rolling mill base (300), a fixed platform (302) is arranged above the support frame (301), the main rolling mill (100) is installed on the fixed platform (302), the main rolling mill (100) comprises an assembling rack (101), an upper support roll balancing mechanism (120), an upper support roll (102), a lower support roll (112), an upper middle roll (103), a lower middle roll (113), an upper working roll (104) and a lower working roll (114), and the side push roll system (500) is arranged on two sides of the upper working roll (104) and the lower working roll (114); during rolling, a side pushing mechanism (510) which is precisely controlled supports working rolls from two sides to the center through a side pushing beam (514) and a supporting roll (506) at the front end of a backing bearing (501), the side pushing mechanism (510) retracts during roll changing, a side pushing roll system (500) is opened towards two sides, a roll changing device (200) changes rolls, a lower middle roll bearing seat (1131) and a lower supporting roll bearing seat (1121) of the roll changing device (200) are both provided with rollers (117) and a track is arranged on a rack (110); in a shutdown state, the upper supporting roll (102) is lifted by using a balancing device, the opening degree is kept at about 20mm, a universal shaft coupling flange is clasped by using a universal shaft clamping device, a rolling line of a rolling mill falls to the lowest position, an upper intermediate roll (103) and a lower supporting roll (112) fall on a track, and the lower intermediate roll (113) is pulled out from a rack (110); when the rolling mill starts to work, the rolling mill is in an unloading state, the annular strip is sleeved into the upper working roll (104) and the tension roll (401), then the roll gap is closed and the tension is given, the main rolling mill (100) is started to rotate, and the rolling is completed through the upper working roll (104), the lower working roll (114) and the tension roll (401) together.
2. A high precision circular strip mill according to claim 1, characterized in that the tension roller device (400) is arranged at the right end of the main mill (100), the tension roller bracket (401) is arranged at the lower end of the tension roller device (400), the tension device base (402) is arranged above the tension roller bracket (401), the tension servo cylinder (403) is arranged on the tension device base (402), the tension servo cylinder (403) is fixed on the tension device base (402) through a bolt (405), and the front end of the tension servo cylinder (403) is connected with the tension roller (404).
3. A high precision endless strip rolling mill according to claim 1, characterized in that said side push mechanism (510) comprises a turntable (511), a telescopic rod (512), a side push rail (513), a side push beam (514) and a telescopic fixed block (515); when the roller is replaced, the side pushing mechanism (510) retracts back, and the side pushing roller system (500) opens the two sides to replace the working roller; during installation, the rotary disc (511) is rotated to enable the side pushing block (516) to move upwards along the side pushing rail (513), and the side pushing beam (514) is pushed upwards to enable the side pushing roller system (500) to clamp towards the middle so as to enable the roller system to be fixed.
4. A high precision endless strip rolling mill according to claim 1, characterized in that the roll changing device (200) changes the parts of the upper backup roll (102), the lower backup roll (112), the upper intermediate roll (103), the lower intermediate roll (113), the upper work roll (104) and the lower work roll (114) being small and bearing-free.
5. A high precision endless strip rolling mill according to claim 1, characterized in that said side push roll system (500) is positioned by two rows of backing bearings (501), the two rows of backing bearings (501) are fixed to the side push beam (514) by means of a mandrel (502) and a saddle (503), the two ends of the side push beam (514) are fixed to the lower middle roll chock (1131) by means of a rotatable pin (504); the side push roller system (500) and the side push mechanism (510) are fixed on a main rolling mill stand column (521) through a pressure plate (520), and a metal bolt (522) is installed on the pressure plate (520).
6. A high precision endless strip rolling mill according to claim 1, characterized in that said upper backup roll balancing mechanism (120) is a balanced beam frame structure suspended by two hydraulic cylinders (121) with a hydraulic system pressure of 8 MPa.
7. A high precision endless strip rolling mill as claimed in claim 1, characterized in that said mill drive (600) distributes the drive torque to the work rolls in the main mill (100) through the upper and lower universal couplings on the main reduction gearbox, pushing the mill drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911348735.2A CN111054752A (en) | 2019-12-24 | 2019-12-24 | High-precision annular strip mill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911348735.2A CN111054752A (en) | 2019-12-24 | 2019-12-24 | High-precision annular strip mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015005A (en) * | 1983-07-07 | 1985-01-25 | テイ−・センジミア−，インコ−ポレ−テツド | Rolling mill |
| JPS6163307A (en) * | 1984-09-03 | 1986-04-01 | Toyota Motor Corp | Endless belt rolling method and equipment |
| EP1721685A1 (en) * | 2005-05-10 | 2006-11-15 | T.Sendzimir Inc. | Improved side supported 6-high rolling mill |
| CN1890035A (en) * | 2003-12-08 | 2007-01-03 | 罗伯特·博世有限公司 | Method and apparatus for forming a metal endless strip with a surface profile |
| CN102781599A (en) * | 2010-03-03 | 2012-11-14 | 西门子奥钢联冶金技术有限公司 | Rolling rack |
| CN102886382A (en) * | 2012-10-15 | 2013-01-23 | 中国重型机械研究院股份公司 | Eighteen-roller rolling mill structure |
| CN103316921A (en) * | 2013-07-11 | 2013-09-25 | 陶洪瑞 | Inclined iron adjustment device of eighteen rolling mill working roll side supports |
| CN103316920A (en) * | 2013-07-11 | 2013-09-25 | 陶洪瑞 | Hydraulic cylinder adjustment device of eighteen rolling mill working roll side supports |
| CN107252822A (en) * | 2017-07-21 | 2017-10-17 | 中冶南方工程技术有限公司 | A kind of eighteen-high mill |
-
2019
- 2019-12-24 CN CN201911348735.2A patent/CN111054752A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015005A (en) * | 1983-07-07 | 1985-01-25 | テイ−・センジミア−，インコ−ポレ−テツド | Rolling mill |
| JPS6163307A (en) * | 1984-09-03 | 1986-04-01 | Toyota Motor Corp | Endless belt rolling method and equipment |
| CN1890035A (en) * | 2003-12-08 | 2007-01-03 | 罗伯特·博世有限公司 | Method and apparatus for forming a metal endless strip with a surface profile |
| EP1721685A1 (en) * | 2005-05-10 | 2006-11-15 | T.Sendzimir Inc. | Improved side supported 6-high rolling mill |
| CN102781599A (en) * | 2010-03-03 | 2012-11-14 | 西门子奥钢联冶金技术有限公司 | Rolling rack |
| CN102886382A (en) * | 2012-10-15 | 2013-01-23 | 中国重型机械研究院股份公司 | Eighteen-roller rolling mill structure |
| CN103316921A (en) * | 2013-07-11 | 2013-09-25 | 陶洪瑞 | Inclined iron adjustment device of eighteen rolling mill working roll side supports |
| CN103316920A (en) * | 2013-07-11 | 2013-09-25 | 陶洪瑞 | Hydraulic cylinder adjustment device of eighteen rolling mill working roll side supports |
| CN107252822A (en) * | 2017-07-21 | 2017-10-17 | 中冶南方工程技术有限公司 | A kind of eighteen-high mill |
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Application publication date: 20200424 |
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| RJ01 | Rejection of invention patent application after publication |