CN108380672B - A kind of self-reacting device adjusting roll chock and rack gap - Google Patents
A kind of self-reacting device adjusting roll chock and rack gap Download PDFInfo
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- CN108380672B CN108380672B CN201810137638.8A CN201810137638A CN108380672B CN 108380672 B CN108380672 B CN 108380672B CN 201810137638 A CN201810137638 A CN 201810137638A CN 108380672 B CN108380672 B CN 108380672B
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- hydraulic cylinder
- disc spring
- spring hydraulic
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- roll
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention belongs to mechanical equipment of steel rolling technical fields, and in particular to a kind of self-reacting device for adjusting roll chock and rack gap.Including being opened in groove body compatible with disc spring hydraulic cylinder body on the outside of framework pillar, working hole through framework pillar and with disc spring hydraulic cylinder piston rod clearance fit, magnetostrictive displacement sensor.Self-reacting device of the present invention eliminates the side clearance between rolling mill roller bearing seat and framework pillar, improves the static determinacy of milling train.The stability and intrinsic frequency for substantially increasing milling train, reduce Mill chattering phenomenon.The invention of self-reacting device, can guarantee in the design of four-high mill roll system structure upper working rolls and lower working rolls will not relatively upper lower support roll crossing operation, and then the drawbacks of eliminate the axial movement of working roll clamping plates band.
Description
Technical field
The invention belongs to mechanical equipment of steel rolling technical fields, and in particular to a kind of to adjust roll chock and rack gap
Self-reacting device.
Background technique
The generally existing working roll clamping plates band of four-high mill that China's hot rolling mill uses at present moves axially phenomenon.By reality
Discovery, certain steel mill 3000mm heavy and medium plate mill working roll axial baffle and its frequent fracture damage of fixing bolt are investigated in ground, can not
It is used for a long time；Certain steel mill 1200mm roughing mill even with square steel with respect to ground withstand working roll bearing block prevent its axial movement come
Maintain production.The axial movements such as working roll linkage roller drive set, cardan axis, motor shaft, it might even be possible to straight with Steel Ruler
It connects and measures.The wear-resisting problem of rack liner plate is focused on solving for a long time, but effect is not obvious, and is ultimately failed to find and be asked
The root of topic.
According to traditional design theory, there are two important design parameters for four-roller strip-mill strip, as shown in Figure 1, respectively roll
The eccentricity ε of side clearance δ and roll arrangement design between bearing block 11 and the window of framework pillar 3.It is set according to micro-scale static
Meter is theoretical, this two parameters have significant impact to roller system of rolling mill stability.Between roll chock 11 and the window of framework pillar 3
Minim gap δ (then increased with wear liner) so that roller system is in static indeterminacy state, and then generated between working roll and support roller
Intersect operating condition, working roll clamping plates band axial movement phenomenon can occur under given conditions.
The invention of self-reacting device, it is ensured that rolling mill roll is parallel, firm position, operates reliable, elimination working roll folder
Firmly strip moves axially bring energy consumption, and the ability of milling train is enable effectively to play, when working under heavy reduction, production
Intensity height, strip product best in quality carry out upgrading to conventional mill to reduce cost, increase benefit.
Summary of the invention
The object of the present invention is to provide a kind of devices using adaptive principle control roll chock and rack gap, can
To overcome the problems, such as static indeterminacy existing for existing milling train and the axial movement of working roll clamping plates band.
The present invention is achieved by the following technical solutions: a kind of adaptive dress adjusting roll chock and rack gap
Set, including be opened in groove body compatible with disc spring hydraulic cylinder body on the outside of framework pillar, run through framework pillar and with disc spring liquid
The working hole and magnetostrictive displacement sensor of pressure cylinder piston bar clearance fit；
The piston rod of the disc spring hydraulic cylinder can pass through working hole and its extension end is connected with by pressure sensor
With the limit plate of roll chock limit cooperation, the cylinder body of disc spring hydraulic cylinder is equipped with the limit with framework pillar immovable fitting outside
Cover, the test side of magnetostrictive displacement sensor is mounted on the piston rod inner of disc spring hydraulic cylinder, magnetostrictive displacement sensor
Electronic signal transmission end displacement signal is fed back into host computer, the rodless cavity of the disc spring hydraulic cylinder is attached to solenoid directional control valve
A mouth, the P mouth of solenoid directional control valve is attached to fuel tank, the rodless cavity of disc spring hydraulic cylinder and the A mouth of solenoid directional control valve by hydraulic pump
Between pipeline on be connected in parallel to proportional pressure control valve.
As the further improvement of technical solution of the present invention, limit plate includes wear-resistant backing plate and intermediate pads, described wear-resistant
One end of backing plate is engaged with roll chock, and the other end is connected by intermediate pads with pressure sensor.
Advantage of the present invention and good effect are:
(1) self-reacting device eliminates the side clearance between rolling mill roller bearing seat and framework pillar, improves milling train
Static determinacy.
(2) stability and intrinsic frequency for substantially increasing milling train, reduce Mill chattering phenomenon.
(3) invention of self-reacting device can guarantee that upper working rolls and lower working rolls will not phase in the design of four-high mill roll system structure
To upper lower support roll crossing operation, and then eliminate the drawbacks of working roll clamping plates band moves axially.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is four-high mill roller system gap schematic diagram.
Fig. 2 is the structural schematic diagram of self-reacting device of the present invention.
Fig. 3 is the side view of the self-reacting device.
Fig. 4 is the self-reacting device schematic view of the mounting position.
Fig. 5 is the hydraulic system principle figure of self-reacting device.
In figure: the wear-resistant backing plate of 1-；2- intermediate pads；3- framework pillar；4- pressure sensor；5- disc spring hydraulic cylinder；6- magnetic
Cause telescopic displacement sensor；7- proportional pressure control valve；8- solenoid directional control valve；9- hydraulic pump；10- self-reacting device；11- roll bearing
Seat；12- fuel tank, 13- position-limiting cover.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Technical solution of the present invention is described in detail with reference to the accompanying drawing.
A kind of self-reacting device adjusting roll chock and rack gap, including it is opened in 3 outside of framework pillar and dish
The compatible groove body of 5 cylinder body of spring hydraulic cylinder, the working hole through framework pillar 3 and with 5 piston rod clearance fit of disc spring hydraulic cylinder,
And magnetostrictive displacement sensor 6,
The piston rod of the disc spring hydraulic cylinder 5 can pass through working hole and its extension end is connected by pressure sensor 4
There is the limit plate with the limit cooperation of roll chock 11, is equipped with and 3 immovable fitting of framework pillar outside the cylinder body of disc spring hydraulic cylinder 5
Position-limiting cover 13, the test side of magnetostrictive displacement sensor 6 is mounted on the piston rod inner of disc spring hydraulic cylinder 5, magnetostriction
Displacement signal is fed back to host computer, the rodless cavity connection of the disc spring hydraulic cylinder 5 by the electronic signal transmission end of displacement sensor 6
To the A mouth of solenoid directional control valve 8, the P mouth of solenoid directional control valve 8 is attached to fuel tank 12 by hydraulic pump 9, disc spring hydraulic cylinder 5 without bar
Proportional pressure control valve 7 is connected in parallel on pipeline between the A of chamber and solenoid directional control valve 8 mouth.
The present invention can be as shown in Figure 4, the opposite side of two roll chocks 11 respectively install one it is of the invention adaptive
Device 10, or can also be in one self-reacting device 10 of the invention of ipsilateral each installation of two roll chocks 11.Specifically make
Used time, the electromagnet YVH2 of solenoid directional control valve 8 and the proportion electro-magnet YB1 of proportional pressure control valve obtain electric, and solenoid directional control valve 8 changes
To high pressure oil is flowed into the rodless cavity of disc spring hydraulic cylinder 5 by hydraulic pump 9 by the channel P-A of solenoid directional control valve 8, pushes disc spring liquid
The piston rod of cylinder pressure 5 stretches out, the position of 6 real-time detection piston rod of magnetostrictive displacement sensor, when piston rod pushes roll mandrel
When holding seat 11 against 3 side of framework pillar, displacement signal is transmitted to host computer by displacement sensor 6, and PC control electromagnetism changes
It is powered off to the electromagnet YVH2 of valve 8, solenoid directional control valve 8 is in middle position, and disc spring hydraulic cylinder 5 is in state of pressure keeping at this time, and protects
The gap for demonstrate,proving roll chock 11 and 3 side of framework pillar is zero.In the operation of rolling, the thermal expansion of roll chock 11 leads to backing plate
Increase with the contact pressure of roll chock 11, by pressure sensor 4 and 7 decomposition pressure closed loop of proportional pressure control valve come to disc spring
The pressure of 5 rodless cavity of hydraulic cylinder is adjusted in due course, keeps it forever equal in magnitude with the horizontal component of roll and remain to roll
The gap of roll bearing seat 11 and 3 side of framework pillar is zero.When replacing roll, the electromagnet YVH1 of solenoid directional control valve 8 obtains electric, dish
The high pressure oil off-load of 5 rodless cavity of spring hydraulic cylinder flows back to fuel tank 12, under the action of disc spring, piston by the A-T of solenoid directional control valve 8
Bar is restored to original position.
Preferably, limit plate includes wear-resistant backing plate 1 and intermediate pads 2, one end of the wear-resistant backing plate 1 and roll chock
11 are engaged, and the other end is connected by intermediate pads 2 with pressure sensor 4.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (2)
1. a kind of self-reacting device for adjusting roll chock and rack gap, which is characterized in that including being opened in framework pillar
(3) compatible with disc spring hydraulic cylinder (5) the cylinder body groove body in outside, run through framework pillar (3) and with disc spring hydraulic cylinder (5) piston rod
The working hole and magnetostrictive displacement sensor (6) of clearance fit,
The piston rod of the disc spring hydraulic cylinder (5) can pass through working hole and its extension end is connected by pressure sensor (4)
There is the limit plate with roll chock (11) limit cooperation, is equipped with outside the cylinder body of disc spring hydraulic cylinder (5) tight with framework pillar (3)
Admittedly the position-limiting cover (13) cooperated, the test side of magnetostrictive displacement sensor (6) are mounted in the piston rod of disc spring hydraulic cylinder (5)
Displacement signal is fed back to host computer, the disc spring hydraulic cylinder by the electronic signal transmission end in portion, magnetostrictive displacement sensor (6)
(5) rodless cavity is attached to the A mouth of solenoid directional control valve (8), and the P mouth of solenoid directional control valve (8) is attached to fuel tank by hydraulic pump (9)
(12), proportional overflow is connected in parallel on the pipeline between the rodless cavity of disc spring hydraulic cylinder (5) and the A mouth of solenoid directional control valve (8)
Valve (7)；By pressure sensor (4) and proportional pressure control valve (7) decomposition pressure closed loop come the pressure to disc spring hydraulic cylinder (5) rodless cavity
Power is adjusted in due course, is kept it equal in magnitude with the horizontal component of roll and is remained roll chock (11) and framework pillar
(3) gap of side is zero.
2. a kind of self-reacting device for adjusting roll chock and rack gap according to claim 1, which is characterized in that
The limit plate includes wear-resistant backing plate (1) and intermediate pads (2), one end and roll chock (11) of the wear-resistant backing plate (1)
It is engaged, the other end is connected by intermediate pads (2) with pressure sensor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810137638.8A CN108380672B (en) | 2018-02-10 | 2018-02-10 | A kind of self-reacting device adjusting roll chock and rack gap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810137638.8A CN108380672B (en) | 2018-02-10 | 2018-02-10 | A kind of self-reacting device adjusting roll chock and rack gap |
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| Publication Number | Publication Date |
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| CN108380672A CN108380672A (en) | 2018-08-10 |
| CN108380672B true CN108380672B (en) | 2019-07-26 |
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| CN201810137638.8A Active CN108380672B (en) | 2018-02-10 | 2018-02-10 | A kind of self-reacting device adjusting roll chock and rack gap |
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Families Citing this family (4)
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| CN110227720A (en) * | 2019-07-19 | 2019-09-13 | 太原理工大学 | A kind of bulging liner plate, clearance control method and system |
| CN113843273B (en) * | 2021-10-09 | 2023-10-20 | 燕山大学 | Universal rolling mill for corrugated rail web wing rail |
| CN114769318A (en) * | 2022-03-30 | 2022-07-22 | 湖北工业大学 | Roller bearing seat structure capable of detecting horizontal force with high precision |
| CN115990618B (en) * | 2023-03-23 | 2023-05-16 | 太原理工大学 | Rolling mill roll gap compensation device and method |
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| JPH0623409A (en) * | 1992-07-06 | 1994-02-01 | Hitachi Ltd | Methods for detecting and adjusting position of work roll of rolling mill and rolling mill |
| CN2928280Y (en) * | 2006-08-07 | 2007-08-01 | 郭聚民 | Flat and vertical two-purpose rolling mill disc spring locking cylinder |
| CN201086095Y (en) * | 2007-09-20 | 2008-07-16 | 攀枝花新钢钒股份有限公司 | Vertical Rolling Mill with Side Pressing Device |
| CN101733287A (en) * | 2009-12-17 | 2010-06-16 | 北京京诚之星科技开发有限公司 | Device for adjusting and positioning horizontal offset for working rollers of rolling mill |
| CN101869912A (en) * | 2010-05-26 | 2010-10-27 | 太原重工股份有限公司 | Pressure-maintaining and regulating hydraulic control system of roll balance gear |
| CN102089090A (en) * | 2008-07-10 | 2011-06-08 | Sms西马格股份公司 | Roller device with adjuster device |
| CN202606507U (en) * | 2012-06-18 | 2012-12-19 | 北京金自天成液压技术有限责任公司 | Automatic controlling and adjusting device for cross angle of rolls of rolling mill |
| CN203725494U (en) * | 2013-12-27 | 2014-07-23 | 中色科技股份有限公司 | Stabilizing structure of roller system of rolling mill |
| CN204912282U (en) * | 2015-09-17 | 2015-12-30 | 武汉钢铁(集团)公司 | Rolling mill memorial archway clearance adjustment compensation arrangement |
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2018
- 2018-02-10 CN CN201810137638.8A patent/CN108380672B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0623409A (en) * | 1992-07-06 | 1994-02-01 | Hitachi Ltd | Methods for detecting and adjusting position of work roll of rolling mill and rolling mill |
| CN2928280Y (en) * | 2006-08-07 | 2007-08-01 | 郭聚民 | Flat and vertical two-purpose rolling mill disc spring locking cylinder |
| CN201086095Y (en) * | 2007-09-20 | 2008-07-16 | 攀枝花新钢钒股份有限公司 | Vertical Rolling Mill with Side Pressing Device |
| CN102089090A (en) * | 2008-07-10 | 2011-06-08 | Sms西马格股份公司 | Roller device with adjuster device |
| CN101733287A (en) * | 2009-12-17 | 2010-06-16 | 北京京诚之星科技开发有限公司 | Device for adjusting and positioning horizontal offset for working rollers of rolling mill |
| CN101869912A (en) * | 2010-05-26 | 2010-10-27 | 太原重工股份有限公司 | Pressure-maintaining and regulating hydraulic control system of roll balance gear |
| CN202606507U (en) * | 2012-06-18 | 2012-12-19 | 北京金自天成液压技术有限责任公司 | Automatic controlling and adjusting device for cross angle of rolls of rolling mill |
| CN203725494U (en) * | 2013-12-27 | 2014-07-23 | 中色科技股份有限公司 | Stabilizing structure of roller system of rolling mill |
| CN204912282U (en) * | 2015-09-17 | 2015-12-30 | 武汉钢铁(集团)公司 | Rolling mill memorial archway clearance adjustment compensation arrangement |
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| CN108380672A (en) | 2018-08-10 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180810 Assignee: Taiyuan Silian Heavy Industry Co.,Ltd. Assignor: Taiyuan University of Technology Contract record no.: X2021990000338 Denomination of invention: An adaptive device for adjusting the clearance between roller bearing seat and frame Granted publication date: 20190726 License type: Common License Record date: 20210604 |
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