CN201735588U - Safe balancing device for upper back-up roll of heavy plate rolling mill - Google Patents
Safe balancing device for upper back-up roll of heavy plate rolling mill Download PDFInfo
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- CN201735588U CN201735588U CN201020269697XU CN201020269697U CN201735588U CN 201735588 U CN201735588 U CN 201735588U CN 201020269697X U CN201020269697X U CN 201020269697XU CN 201020269697 U CN201020269697 U CN 201020269697U CN 201735588 U CN201735588 U CN 201735588U
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- hough circle
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Abstract
A safe balancing device for an upper back-up roll of a heavy plate rolling mill comprises a back-up roll balancing cylinder. The back-up roll balancing cylinder is arranged on a middle articulated beam of the mill housing of the rolling mill; the upper end of the back-up roll balancing cylinder is fixedly connected to a back-up roll balancing cross beam at the upper part of the rolling mill through a cylindrical pin; and a rotatable stepped Huff ring component controlled by a hydraulic cylinder component is arranged on the outer ring of the end cover of the back-up roll balancing cylinder. When the back-up roll is repaired or replaced, the back-up roll balancing can fall on the steps of the Huff ring component so long as the Huff ring component is rotated to the corresponding position. The save balancing device of the utility model has the advantages of simple structure, low cost, convenient installation and good practical application effect, can effectively prevent the back-up roll balancing cylinder and the back-up roll balancing cross beam from falling down, and is applicable to the field of safe balancing of the upper back-up rolls of heavy plate rolling mills.
Description
Technical field
The utility model relates to a kind of object that prevents and falls with safe servicing unit field, relate in particular to a kind of be applied to iron and steel in producing the balance safety device that uses of the upper support roller of heavy plate mill, play the safeguard protection effect of the upper support roller of milling train.
Background technology
The heavy plate mill of each tame steel production enterprise is extensive use of and has arrived a kind of backing roll at present, and this backing roll is the gap that is used for eliminating between upper support roller and pressure head and the screw mandrel screw.Backing roll equalizer bar itself is heavy 60 tons, hangs 60 tons of foreplates, hangs 400 tons on upper support roller, leans on the balance hydraulic cylinder of backing roll to keep when roll change at ordinary times or maintenance fully.
And the layout of the Support roller assembly of the heavy plate mill under the prior art is as described below: upper support roll bearing seat band the upper support roller and is hung over together on entrance side equalizer bar and the outlet side equalizer bar, the guiding gusset is to be fixed by welding on the entrance side equalizer bar, tie-beam is to be fixed on the memorial archway of milling train in the middle of the mill housing, upper support roller compensating cylinder is mounted in the middle tie-beam of mill housing, the jaw of upper support roller compensating cylinder with straight pin fixedly connected the backing roll equalizer, hang entrance side equalizer bar and outlet side equalizer bar respectively at two of backing roll equalizer, also be connected with two baffle plates with bolting at the two ends of backing roll equalizer.
Therefore; heavily about 400 tons upper support roller and heavily about 100 tons of gateway equalizer bars support by upper support roller compensating cylinder; other are without any Machine guarding; in case balance hydraulic cylinder is let out, is leaked or pipeline leakage as in taking place; cause hydraulic cylinder can't operate as normal the time or during hydraulic system fault; these heavy about more than 500 tons objects will be pounded down; smash parts such as roller mill main axle, roller oil cylinder; cause the production safety accident when serious; quite dangerous, just more dangerous in the time of especially when maintenance, need suspending hydraulic system.In addition, one-sided stressed owing to heavily about 60 tons of this breast roll when changing roll mill because of the backing roll equalizer, can cause crossbeam to tilt, make breast roll normally to change.
The utility model content
In sum, for the upper support roller work that solves existing heavy plate mill, the variety of problems when overhauling or changing, the utility model has improved the shortcoming of original milling train upper support roller balance sysmte, a kind of upper support roller balance safety device of heavy plate mill is provided, and its concrete structure is as described below:
A kind of upper support roller balance safety device of heavy plate mill comprises a backing roll compensating cylinder, it is characterized in that:
Described backing roll compensating cylinder is arranged on the middle tie-beam of mill housing of milling train, the upper end of backing roll compensating cylinder is fixedly connected on the backing roll equalizer on milling train top by a straight pin again, and the end cap outer ring of backing roll compensating cylinder is provided with a rotatable stepped Hough coil assembly;
Described Hough coil assembly is controlled by a hydraulic pressure cylinder assembly.
Upper support roller balance safety device according to a kind of heavy plate mill of the present utility model, it is characterized in that, described Hough coil assembly comprises the safety pin hanging feet, right half Hough circle, a left side half Hough circle, a bottom connecting plate, a top connecting plate, the outer-hexagonal bolt, No. two bottom connecting plates, No. two top connecting plates, hydraulic cylinder hanging feet and lifting are formed with screwed hole, it is specially, right half Hough circle is to encircle about mutually nested formula with left half Hough circle and is arranged on the end cap outer ring of backing roll compensating cylinder, the safety pin hanging feet is weldingly fixed on a side of right half Hough circle, the hydraulic cylinder hanging feet then is weldingly fixed on a side of left half Hough circle, two hanging feets are face-to-face setting, the one end employing outer-hexagonal bolt of right half Hough circle and left half Hough circle junction screws in a bottom connecting plate and the top connecting plate on two Hough circles respectively, the other end of right half Hough circle and left half Hough circle junction then adopts the outer-hexagonal bolt to screw in No. two bottom connecting plates and No. two top connecting plates on two Hough circles respectively, the right side half Hough circle and left half Hough circle are connected and fixed, and lifting then is separately positioned on the top of right half Hough circle and left half Hough circle with screwed hole.
The Hough coil assembly is divided into left and right sides two parts, has made things convenient for the handling installation, and adopts 4 connecting plate fitted bolts to connect, and is safe and reliable, lifts in addition with the top of screwed hole design with the Hough circle, handling when having made things convenient for installation.
Upper support roller balance safety device according to a kind of heavy plate mill of the present utility model, it is characterized in that, be provided with 4 steps altogether after the right side half Hough circle of described Hough coil assembly and the combination of left half Hough circle, the backing roll equalizer can drop on respectively on any one step of postrotational Hough coil assembly.
Upper support roller balance safety device according to a kind of heavy plate mill of the present utility model, it is characterized in that, described Hough coil assembly is controlled by a hydraulic pressure cylinder assembly, this hydraulic pressure cylinder assembly comprises double acting hydraulic cylinder, connects Hough circle straight pin, hanging feet straight pin, tie-beam hanging feet, it is specially double acting hydraulic cylinder one end and is connected on the hydraulic cylinder hanging feet of Hough coil assembly with straight pin with connecting the Hough circle, the other end is connected on the tie-beam hanging feet with the hanging feet straight pin, and the tie-beam hanging feet is installed to be provided with again and is fixed on the middle tie-beam of mill housing.
4 step positions of Hough circle rotation are equipped with 4 near limit switch; signal is connected to electric panel room and controls hydraulic system double acting hydraulic cylinder is moved; double acting hydraulic cylinder drives the Hough coil assembly and rotates; when turning an angle; limit switch touches; be a position of backing roll action; forward the Hough coil assembly to relevant position as when overhauling or changing backing roll, needing only; the backing roll equalizer just drops on each step of Hough coil assembly; can directly not drop, play a safeguard protection effect.
The upper support roller balance safety device of a kind of heavy plate mill of the present utility model, hydraulic pressure cylinder assembly also can use connatural electric machine assembly to replace using.
Electric machine assembly also can replace hydraulic pressure cylinder assembly to use, and only need have identical power, can allow the Hough coil assembly rotate and get final product.
Use the upper support roller balance safety device of heavy plate mill of the present utility model, obtain following beneficial effect:
1. really when roll change, backing roll keeps the tram to the upper support roller of heavy plate mill of the present utility model usefulness balance safety device;
2. the upper support roller of heavy plate mill of the present utility model when maintenance stops hydraulic pressure, guarantees that backing roll does not fall with the balance safety device, guarantees the safety of maintainer and equipment;
3. the upper support roller of heavy plate mill of the present utility model has solved the backing roll bascule of breast roll when changing and the problem of foreplate inclination generation with the balance safety device.
Description of drawings
Fig. 1 is the concrete structure schematic diagram of the upper support roller of heavy plate mill of the present utility model with the balance safety device;
Fig. 2 is the concrete structure schematic diagram of the upper support roller of heavy plate mill of the present utility model with the Hough coil assembly of balance safety device;
Fig. 3 is the concrete structure vertical view of the upper support roller of heavy plate mill of the present utility model with the Hough coil assembly of balance safety device;
Fig. 4 is the concrete structure schematic diagram of the upper support roller of heavy plate mill of the present utility model with the hydraulic pressure cylinder assembly of balance safety device.
Among the figure: A-Hough coil assembly, A1-safety pin hanging feet, the right half Hough circle of A2-, an A3-left side half Hough circle, bottom connecting plate of A4-, top connecting plate of A5-, A6-outer-hexagonal bolt, No. two bottom connecting plates of A7-, No. two top connecting plates of A8-, A9-hydraulic cylinder hanging feet, A10-lifting screwed hole, the B-hydraulic pressure cylinder assembly, B1-double acting hydraulic cylinder, B2-connect Hough circle straight pin, B3-hanging feet straight pin, B4-tie-beam hanging feet, 1-backing roll compensating cylinder, tie-beam in the middle of the 2-milling train, 3-mill housing, the 4-straight pin, 5-backing roll equalizer, 6-step.
The specific embodiment
Be described further with the balance safety device below in conjunction with the upper support roller of drawings and Examples a kind of heavy plate mill of the present utility model.
Embodiment
As shown in Figures 1 to 4, the upper support roller balance safety device of heavy plate mill of the present utility model, its general design idea is: increase a Sealing shield ring in the outer ring of backing roll compensating cylinder piston and fix equalizer bar, require this Sealing shield ring can be convenient to dismounting, the action of compensating cylinder can be guaranteed, several ad-hoc locations fixing of compensating cylinder can be satisfied.
In conjunction with above-mentioned design concept, the upper support roller of heavy plate mill of the present utility model has a rotatable stepped Hough coil assembly A with the balance safety device, the ladder of Hough coil assembly is regulated by the rotation of hydraulic pressure cylinder assembly B and is regulated, nearly spacing the realization is abutted against in the location, position, and can be by the operation of computer.
Extremely shown in Figure 4 as Fig. 2; this Hough coil assembly A has 4 grades of ladders: 1 grade of normal rolling position; 2 level work roller roll change positions; 3 grades of backing roll roll change positions; 4 grades of highest order roll mill change bits just; and can bear weight more than 500 tons; 4 step positions of Hough circle rotation are equipped with 4 near the limit switch (not shown); signal is connected to electric panel room and controls hydraulic system double acting hydraulic cylinder is moved; double acting hydraulic cylinder drives the Hough coil assembly and rotates; when turning an angle; limit switch touches; be a position of backing roll action; forward the Hough coil assembly to relevant position as when overhauling or changing backing roll, needing only; the backing roll equalizer just drops on each step of Hough coil assembly; can directly not drop, play a safeguard protection effect.
The upper support roller of heavy plate mill of the present utility model is simple in structure with the balance safety device, cost is low, easy for installation, and practical application effect is good, can prevent the tenesmus of backing roll compensating cylinder 1 and backing roll equalizer 5 effectively, the upper support roller of heavy plate mill of the present utility model is applicable to the balance security fields that the upper support roller of heavy plate mill uses with the balance safety device.
Claims (4)
1. the upper support roller balance safety device of a heavy plate mill comprises a backing roll compensating cylinder (1), it is characterized in that:
Described backing roll compensating cylinder (1) is arranged on the middle tie-beam of mill housing (3) of milling train (2), the upper end of backing roll compensating cylinder is fixedly connected on the backing roll equalizer (5) on milling train top by a straight pin (4) again, and the end cap outer ring of backing roll compensating cylinder is provided with a rotatable stepped Hough coil assembly (A);
Described Hough coil assembly (A) is controlled by a hydraulic pressure cylinder assembly (B).
2. the upper support roller balance safety device of a kind of heavy plate mill as claimed in claim 1, it is characterized in that, described Hough coil assembly (A) comprises safety pin hanging feet (A1), right half Hough circle (A2), a left side half Hough circle (A3), a bottom connecting plate (A4), a top connecting plate (A5), outer-hexagonal bolt (A6), No. two bottom connecting plates (A7), No. two top connecting plates (A8), hydraulic cylinder hanging feet (A9) and lifting are formed with screwed hole (A10), it is specially, right half Hough circle is to encircle about mutually nested formula with left half Hough circle and is arranged on the end cap outer ring of backing roll compensating cylinder, the safety pin hanging feet is weldingly fixed on a side of right half Hough circle, the hydraulic cylinder hanging feet then is weldingly fixed on a side of left half Hough circle, two hanging feets are face-to-face setting, the one end employing outer-hexagonal bolt of right half Hough circle and left half Hough circle junction screws in a bottom connecting plate and the top connecting plate on two Hough circles respectively, the other end of right half Hough circle and left half Hough circle junction then adopts the outer-hexagonal bolt to screw in No. two bottom connecting plates and No. two top connecting plates on two Hough circles respectively, the right side half Hough circle and left half Hough circle are connected and fixed, and lifting then is separately positioned on the top of right half Hough circle and left half Hough circle with screwed hole.
3. as the upper support roller balance safety device of claim 1 or the described a kind of heavy plate mill of claim 2, it is characterized in that, be provided with 4 steps (6) altogether after the right side half Hough circle of described Hough coil assembly (A) and the combination of left half Hough circle, backing roll equalizer (5) can drop on respectively on any one step of postrotational Hough coil assembly.
4. the upper support roller balance safety device of a kind of heavy plate mill as claimed in claim 1, it is characterized in that, described Hough coil assembly (A) is controlled by a hydraulic pressure cylinder assembly (B), this hydraulic pressure cylinder assembly comprises double acting hydraulic cylinder (B1), connect Hough circle straight pin (B2), hanging feet straight pin (B3), tie-beam hanging feet (B4), it is specially double acting hydraulic cylinder one end and is connected on the hydraulic cylinder hanging feet (A9) of Hough coil assembly (A) with straight pin with connecting the Hough circle, the other end is connected on the tie-beam hanging feet with the hanging feet straight pin, and the tie-beam hanging feet is installed to be provided with again and is fixed on the middle tie-beam of mill housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020269697XU CN201735588U (en) | 2010-07-23 | 2010-07-23 | Safe balancing device for upper back-up roll of heavy plate rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020269697XU CN201735588U (en) | 2010-07-23 | 2010-07-23 | Safe balancing device for upper back-up roll of heavy plate rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735588U true CN201735588U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020269697XU Expired - Fee Related CN201735588U (en) | 2010-07-23 | 2010-07-23 | Safe balancing device for upper back-up roll of heavy plate rolling mill |
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| CN (1) | CN201735588U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521527A (en) * | 2013-10-09 | 2014-01-22 | 鞍钢股份有限公司 | Device and method for replacing balance cylinder of backup roll of heavy plate mill |
| CN104588416A (en) * | 2014-12-03 | 2015-05-06 | 攀钢集团攀枝花钢钒有限公司 | Safety supporting device |
| CN105382032A (en) * | 2015-12-07 | 2016-03-09 | 天津市新宇彩板有限公司 | Bending cylinder piston rod ejecting heads for roll bearing seats |
| CN111451284A (en) * | 2020-04-22 | 2020-07-28 | 山东钢铁集团日照有限公司 | Method for improving hydraulic balance loop of hot rolling finishing mill back-up roll balance system |
-
2010
- 2010-07-23 CN CN201020269697XU patent/CN201735588U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521527A (en) * | 2013-10-09 | 2014-01-22 | 鞍钢股份有限公司 | Device and method for replacing balance cylinder of backup roll of heavy plate mill |
| CN103521527B (en) * | 2013-10-09 | 2015-11-18 | 鞍钢股份有限公司 | Device and method for replacing balance cylinder of backup roll of heavy plate mill |
| CN104588416A (en) * | 2014-12-03 | 2015-05-06 | 攀钢集团攀枝花钢钒有限公司 | Safety supporting device |
| CN105382032A (en) * | 2015-12-07 | 2016-03-09 | 天津市新宇彩板有限公司 | Bending cylinder piston rod ejecting heads for roll bearing seats |
| CN111451284A (en) * | 2020-04-22 | 2020-07-28 | 山东钢铁集团日照有限公司 | Method for improving hydraulic balance loop of hot rolling finishing mill back-up roll balance system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20160723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |