CN109248929A - A kind of hot-strip loop tension difference measuring device - Google Patents
A kind of hot-strip loop tension difference measuring device Download PDFInfo
- Publication number
- CN109248929A CN109248929A CN201811259200.3A CN201811259200A CN109248929A CN 109248929 A CN109248929 A CN 109248929A CN 201811259200 A CN201811259200 A CN 201811259200A CN 109248929 A CN109248929 A CN 109248929A
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- China
- Prior art keywords
- swing arm
- loop
- pressure measurement
- back roll
- tension difference
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to a kind of hot-strip loop tension difference measuring devices, including loop back roll, two sets of device for pressure measurement, swing arm shaft, adjust hydraulic cylinder, the both ends of the loop back roll are respectively equipped with a set of device for pressure measurement, the device for pressure measurement includes swing arm ontology, linking arm, pressure measurement sensor, connect pin shaft, the swing arm shaft is equipped with driving swing arm, the piston rod of the adjustment hydraulic cylinder and driving swing arm are hinged, the bottom of adjustment hydraulic cylinder is hinged in hydraulic fixing seat, rolled piece is in loop back roll length direction both ends Tensity size when energy on-line measurement steel rolling of the present invention, and calculate the tension difference value at both ends, judge strip in the thickness branch unevenness and plate shape situation of change of width direction with this, then this tension difference value is converted into thickness differential signal, milling train thickness control (HGC before loop is fed back to again ) system, constantly to carry out the thickness control of rolled piece, be effectively improved rolled piece thickness be evenly distributed with property, plate shape and improve production rolling when stability.
Description
Technical field
The present invention relates to steel and iron manufacturing equipment technical fields, and in particular to a kind of hot-strip loop tension difference measurements dress
It sets.
Background technique
Conventional looper is mainly used to be tensioned the rolled piece loop amount occurred between each milling train, and rolled piece is prevented to be folded into milling train
Roll causes roll breakage or piling of steel, it is ensured that Rolling Production is gone on smoothly.When front and back, there is deviation in mill milling speed, loop back roll pendulum
Arm generates displacement (corner), and issuing signal makes Main Drive of Rolling Mill revolving speed generate micro change, to correct the speed of roll appearance
Difference guarantees that hot tandem is rolled under stable small tension receiving coil state.But when rolled piece uneven thickness, deformed steel strip situation go out
Now, loop back roll fluctuation can be larger, but the reason of fluctuation can not detect, also can not just solve.
The Chinese patent literature of Patent No. CN94112404.5 specifically discloses a kind of belt plate shape detection device, packet
Include loop back roll, loop back roll inner shaft, loop back roll crossbeam, loop back roll crossbeam vertical shaft, the swing arm with bearing housing, balance staff, balance staff bearing housing,
Loop backplate, Spring balancer and corresponding angle signal testing agency and balance staff power device, which is characterized in that the loop
Roller is the segmented loop back roll respectively assembled by collars, ball bearing, door type frame, and loop back roll inner shaft is " hollow
Axis " in " in hollow shaft ", is mounted on band spring with other each section of loop back roll corresponding positions in addition to each one section of both ends head
Bearing mechanism, pressure-detecting device, apparatus for adjusting position and corresponding lubrication and hydraulic oil pipeline, and in former loop back roll
Directly couple through bearing between axis and loop back roll crossbeam and is changed to " hollow shaft " through crank axle hanging on loop back roll crossbeam both ends
In the bearing box of side.It can be such that loop back roll well contacts with strip holding under any circumstance, thus both can detect potential template
Shape can detect again appears template shape, also detectable strip " snake " and is avoided that or reduces " strip longitudinal direction folding bites " accident
And " strip whipping " accident.Although it has the disadvantage in that the case where capable of detecting rolled piece deformed steel strip, it is unable to detection limit
The tension difference parameter generated due to rolled piece deformed steel strip in loop back roll length direction, it can not be fed back to before loop milling train into
Row adjusts and solves the problems, such as plate shape.
Summary of the invention
To overcome the deficiency, the purpose of the present invention is to provide a kind of hot-strip loop tension difference measuring devices.
The technical solution adopted by the present invention to solve the technical problems is: a kind of hot-strip loop tension difference measurements dress
It sets, including loop back roll, two sets of device for pressure measurement, swing arm shaft, adjustment hydraulic cylinder, the both ends of the loop back roll are respectively equipped with one
Device for pressure measurement is covered, the device for pressure measurement includes swing arm ontology, linking arm, pressure measurement sensor, connection pin shaft, institute
The lower end for stating swing arm ontology is fixed in swing arm shaft, and the upper end of the swing arm ontology is connected with linking arm, the linking arm
Side far from swing arm ontology is equipped with loop bearing block, is equipped with loop back roll in loop bearing block, the loop back roll be it is passive from
By roller, is limited on the connecting arm by the first fixing bolt, pressure sensor is installed between the linking arm and swing arm ontology,
The swing arm shaft is equipped with driving swing arm, and the piston rod of the adjustment hydraulic cylinder and driving swing arm are hinged, adjusts liquid
The bottom of cylinder pressure is hinged in hydraulic fixing seat.
Specifically, the swing arm shaft is assemblied on shaft assembly pedestal, and assembly pedestal is fixed in fixing seat.
Specifically, a side of the upper end of the swing arm ontology is connected to one by a side of connection pin shaft and linking arm
It rises, the other side of the upper end of swing arm ontology is fixed together by the second fixing bolt with linking arm.
Specifically, the pressure sensor transmits a signal to the thickness control system (HGC) of rolling mill before loop.
The invention has the following advantages: rolled piece is at loop back roll length direction both ends when energy on-line measurement steel rolling of the present invention
Tensity size, and the tension difference value at both ends is calculated, judge strip in the thickness branch unevenness and plate of width direction with this
Then this tension difference value is converted into thickness differential signal by shape situation of change, then feed back to milling train thickness control (HGC) system before loop
System is effectively improved stabilization when rolled piece thickness is evenly distributed with property, plate shape and improves production rolling constantly to carry out the thickness control of rolled piece
Property.
Detailed description of the invention
Fig. 1 is structural schematic diagram in the prior art of the invention.
Fig. 2 is the structural schematic diagram of device for pressure measurement of the invention.
Fig. 3 is the main view of device for pressure measurement working condition of the invention.
Fig. 4 is the left view of device for pressure measurement working condition of the invention.
Rolling mill roll before 1 loop, 2 shafts assemble pedestal, and 3 adjustment hydraulic cylinders, 31 hydraulic fixing seats, 4 swing arm ontologies, 5 is living
Cover roller, 6 first fixing bolts, 7 rolled pieces, 8 loopingmill rolls, 9 linking arms, 10 second fixing bolts, 11 connection pin shafts, 12 pressures
Force measuring sensors, 13 vertical plates, 14 swing arm shafts.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, but embodiments of the present invention
It is without being limited thereto.
Loop structural schematic diagram in the prior art as shown in Figure 1, in the prior art, one end of swing arm ontology 4 is fixed
In swing arm shaft, the other end of swing arm ontology 4 is equipped with loop bearing block, is equipped with loop back roll 5, loop back roll in loop bearing block
5 are limited in the loop bearing block of swing arm ontology 4 by the first fixing bolt 6.
A kind of hot-strip loop tension difference measuring device shown in -4 according to fig. 2, including 5, two sets of pressure of loop back roll are surveyed
Device, swing arm shaft 14, adjustment hydraulic cylinder 3 are measured, the both ends of the loop back roll 5 are respectively equipped with a set of device for pressure measurement, described
Device for pressure measurement includes swing arm ontology 4, linking arm 9, pressure measurement sensor 12, connects pin shaft 11, the swing arm ontology 4
Lower end is fixed in swing arm shaft 14, and the upper end of the swing arm ontology 4 is connected with linking arm 9, and the linking arm 9 is far from swing arm
The side of ontology 4 is equipped with loop bearing block, is equipped with loop back roll 5 in loop bearing block, and the loop back roll 5 is passive free roll,
It is limited on linking arm 9 by the first fixing bolt 6, pressure sensor is installed between the linking arm 9 and swing arm ontology 4,
The swing arm shaft 14 is equipped with driving swing arm, and the piston rod of the adjustment hydraulic cylinder 3 and driving swing arm are hinged, adjustment
The bottom of hydraulic cylinder 3 is hinged in hydraulic fixing seat 31, and hydraulic fixing seat 31 is fixed on vertical plate 13.
Specifically, the swing arm shaft 14 is assemblied on shaft assembly pedestal 2, and shaft assembly pedestal 2 is fixed on vertical plate 13
On.
Specifically, a side of the upper end of the swing arm ontology 4 is connect by connecting pin shaft 11 with a side of linking arm 9
Together, the other side of the upper end of swing arm ontology 4 is fixed together by the second fixing bolt 10 with linking arm 9.
Specifically, the pressure measurement sensor 12 transmits a signal to the thickness control system (HGC) of milling train before loop.
Strip loop tension difference measuring device is located at before loop after milling train and loop between milling train, when producing rolling, is rolled
Part 7 pass through before loop after mill rolls 1 with 5 face contact of loop back roll, subsequently into mill rolls 8 after loop, rolled piece 7 width direction with
5 face contact of loop back roll drives driving swing arm by adjusting hydraulic cylinder 3 to realize the arm pivoted rotation of pendulum, to adjust loop back roll 5
Inclination angle size, so that it is guaranteed that rolled piece 7 keeps Minimal Tension production, in the case, rolled piece 7 and 5 face of loop back roll are in close contact, and work as plate
When shape uneven thickness and deformed steel strip, rolled piece 7 is not in the Tensity size distribution that width direction and 5 face contact of loop back roll generate
Identical, the pressure measurement sensor 12 between linking arm 12 and swing arm 4 measures loop back roll 5 in the pressure at length direction both ends
Force value, and pressure value is sent to mill control system by pressure measurement sensor 12, pressure difference value is then converted into rolled piece 7
Thickness difference signal, and when the thickness control system (HGC) that this thickness difference signal feeds back to rolling mill before loop is carried out
When adjust, be effectively improved rolled piece thickness be evenly distributed with property, plate shape and improve production rolling when stability.
The present invention is not limited to the embodiment, anyone should learn that the structure made under the inspiration of the present invention becomes
Change, the technical schemes that are same or similar to the present invention are fallen within the scope of protection of the present invention.
Technology not described in detail in the present invention, shape, construction portion are well-known technique.
Claims (4)
1. a kind of hot-strip loop tension difference measuring device, it is characterised in that: including loop back roll, two sets of device for pressure measurement,
Swing arm shaft, adjustment hydraulic cylinder, the both ends of the loop back roll are respectively equipped with a set of device for pressure measurement, the device for pressure measurement
Including swing arm ontology, linking arm, pressure measurement sensor, connection pin shaft, the lower end of the swing arm ontology is fixed on swing arm shaft
On, the upper end of the swing arm ontology is connected with linking arm, and the linking arm is equipped with loop bearing far from the side of swing arm ontology
, loop back roll is installed in loop bearing block, the loop back roll is passive free roll, is limited to connection by the first fixing bolt
On arm, pressure sensor is installed, the swing arm shaft is equipped with driving swing arm, described between the linking arm and swing arm ontology
Piston rod and the driving swing arm for adjusting hydraulic cylinder are hinged, and the bottom for adjusting hydraulic cylinder is hinged in hydraulic fixing seat.
2. a kind of hot-strip loop tension difference measuring device according to claim 1, it is characterised in that: the swing arm turns
Axis is assemblied on shaft assembly pedestal, and assembly pedestal is fixed in fixing seat.
3. a kind of hot-strip loop tension difference measuring device according to claim 1, it is characterised in that: the swing arm sheet
A side of the upper end of body is linked together by a side of connection pin shaft and linking arm, the other side of the upper end of swing arm ontology
It is fixed together by the second fixing bolt with linking arm.
4. a kind of hot-strip loop tension difference measuring device according to claim 1, it is characterised in that: the pressure passes
Sensor transmits a signal to the thickness control system of rolling mill before loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259200.3A CN109248929A (en) | 2018-10-26 | 2018-10-26 | A kind of hot-strip loop tension difference measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259200.3A CN109248929A (en) | 2018-10-26 | 2018-10-26 | A kind of hot-strip loop tension difference measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109248929A true CN109248929A (en) | 2019-01-22 |
Family
ID=65045022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811259200.3A Pending CN109248929A (en) | 2018-10-26 | 2018-10-26 | A kind of hot-strip loop tension difference measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109248929A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111085552A (en) * | 2019-12-25 | 2020-05-01 | 山东钢铁集团日照有限公司 | Height fine-adjustment device for loop roller of plate and strip rolling mill |
| CN112756403A (en) * | 2020-12-18 | 2021-05-07 | 攀钢集团攀枝花钢钒有限公司 | Strip steel deviation rectifying system and method |
| CN112846671A (en) * | 2021-01-26 | 2021-05-28 | 江苏省镔鑫钢铁集团有限公司 | Method and apparatus for producing metal bar |
| CN113102521A (en) * | 2021-04-09 | 2021-07-13 | 马鞍山钢铁股份有限公司 | Rolling mill loop roller swing corner detection system and control method thereof |
| CN113976636A (en) * | 2021-11-01 | 2022-01-28 | 沁阳市宏达钢铁有限公司 | Production device and method for hot-rolled deformed steel bar |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07164028A (en) * | 1993-11-24 | 1995-06-27 | Nippon Steel Corp | Method for controlling deviation of thickness and width of rolling sheet |
| CN1299713A (en) * | 1999-11-05 | 2001-06-20 | Sms迪马格股份公司 | Loop lifter |
| CN101116875A (en) * | 2006-08-03 | 2008-02-06 | 上海重型机器厂有限公司 | Hydraulic pressure looper gear |
| CN102085535A (en) * | 2009-12-03 | 2011-06-08 | 唐山国丰钢铁有限公司 | Leveling control method of finishing mill |
| CN103433297A (en) * | 2013-08-22 | 2013-12-11 | 攀钢集团攀枝花钢钒有限公司 | Tension stable control device for skin pass mill |
| CN205146900U (en) * | 2015-12-07 | 2016-04-13 | 常熟达涅利冶金设备有限公司 | Looper between finishing mill |
-
2018
- 2018-10-26 CN CN201811259200.3A patent/CN109248929A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07164028A (en) * | 1993-11-24 | 1995-06-27 | Nippon Steel Corp | Method for controlling deviation of thickness and width of rolling sheet |
| CN1299713A (en) * | 1999-11-05 | 2001-06-20 | Sms迪马格股份公司 | Loop lifter |
| CN101116875A (en) * | 2006-08-03 | 2008-02-06 | 上海重型机器厂有限公司 | Hydraulic pressure looper gear |
| CN102085535A (en) * | 2009-12-03 | 2011-06-08 | 唐山国丰钢铁有限公司 | Leveling control method of finishing mill |
| CN103433297A (en) * | 2013-08-22 | 2013-12-11 | 攀钢集团攀枝花钢钒有限公司 | Tension stable control device for skin pass mill |
| CN205146900U (en) * | 2015-12-07 | 2016-04-13 | 常熟达涅利冶金设备有限公司 | Looper between finishing mill |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111085552A (en) * | 2019-12-25 | 2020-05-01 | 山东钢铁集团日照有限公司 | Height fine-adjustment device for loop roller of plate and strip rolling mill |
| CN111085552B (en) * | 2019-12-25 | 2021-10-15 | 山东钢铁集团日照有限公司 | Height fine-adjustment device for loop roller of plate and strip rolling mill |
| CN112756403A (en) * | 2020-12-18 | 2021-05-07 | 攀钢集团攀枝花钢钒有限公司 | Strip steel deviation rectifying system and method |
| CN112846671A (en) * | 2021-01-26 | 2021-05-28 | 江苏省镔鑫钢铁集团有限公司 | Method and apparatus for producing metal bar |
| CN113102521A (en) * | 2021-04-09 | 2021-07-13 | 马鞍山钢铁股份有限公司 | Rolling mill loop roller swing corner detection system and control method thereof |
| CN113976636A (en) * | 2021-11-01 | 2022-01-28 | 沁阳市宏达钢铁有限公司 | Production device and method for hot-rolled deformed steel bar |
| CN113976636B (en) * | 2021-11-01 | 2024-04-16 | 沁阳市宏达钢铁有限公司 | Production device and method for hot-rolled deformed steel bar |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190122 |
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| RJ01 | Rejection of invention patent application after publication |