CN202638959U - Guard board device for hot rolling reeling machine - Google Patents
Guard board device for hot rolling reeling machine Download PDFInfo
- Publication number
- CN202638959U CN202638959U CN 201120541647 CN201120541647U CN202638959U CN 202638959 U CN202638959 U CN 202638959U CN 201120541647 CN201120541647 CN 201120541647 CN 201120541647 U CN201120541647 U CN 201120541647U CN 202638959 U CN202638959 U CN 202638959U
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- Prior art keywords
- pinch roll
- hot rolling
- roller
- approaching face
- guard plate
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Abstract
A guard board device for a hot rolling reeling machine is arranged after a side guide device (30) and end roller-ways (20) and before a reeling machine. The guard board device comprises a pinch roll (40) and a pinch roll archway (41) which are arranged after the side guide device (30) and the end roller-ways (20), and an upper pinch roll frame (42), an upper pinch roll (43) and a lower pinch roll (44) which are arranged on the pinch roll archway (41). The guard board device is characterized in that: a downward declined guide board (60) is arranged at one side of the end roller-ways (20). The guide board (60) is consisted of a downward declined leading-in face (61), reinforcing plates (62) and a base plate (63). The leading-in face (61) is supported by a plurality of reinforcing plates (62), the reinforcing plates are welded on the base plate (63), and the base plates are fixed on the pinch roll archway (41) through a plurality of bolts (64), enabling strip steels which come out from the end roller-ways (20) to move downwards along the downward declined leading-in face (61) of the guide board (60).
Description
Technical field
The utility model relates to metallurgical hot rolling field, more particularly, the utility model relates to a kind of hot rolling coiler guard plate apparatus, before described hot rolling coiler guard plate apparatus is arranged at hot-rolled coiler pinch roll, is used for eliminating steel scrap accident and the impression defective of jumping up and causing because of coiling machine band steel head.
Background technology
The operations such as the technological process of metallurgical hot rolling roughly comprises heating, roughing, finish rolling, batches, transportation, finishing.As shown in Figure 1, band is after steel 10 shuts out by mm finishing mill unit, and the side that is delivered to coiling machine by roller-way 20 is led device 30, and side is led device in order to the up band steel that advances of roller-way is led, and with steel head 11 by later it being applied certain clamping force, to obtain good scroll quality.
As shown in Figure 1, the pinch roll 40 of the coiling machine after the finish rolling is located at side and is led after the device 30.Top pinch roll framework 42 and upper and lower pinch roll 43,44 are installed on the pinch roll memorial archway 41, and top pinch roll 43 is realized lifting and depress action by withdrawal roll oil cylinder 45, and bottom pinch roll 44 is fixed in the bearing block.The Main Function of pinch roll is to sting the steel stage with steel head to apply certain clamping force with steel, simultaneously it is implemented for the first time flexural deformation effect; In addition, pinch roll batches the stage to apply stable tension force with steel, to guarantee good scroll quality at afterbody.
In theory, the roller-way spacing is inversely proportional to band steel threading speed, and namely the roller-way spacing is less, and is more stable with the threading of steel head, allows the threading of use higher; Otherwise the roller-way spacing is larger, and is then more unstable with the threading of steel head, allows the threading of use lower.In fact, be limited to the needs of process flow, the takers-in track pitch of some hot rolling line is excessive, and on certain iron company's hot rolling line, the diameter of roller-way is 300mm, and roller axle is 420mm apart from minimum, is 470mm to the maximum.Under large like this roller-way spacing, use higher threading speed, with the very unstability of steel head operation.
The problem of jumping up and causing steel scrap to produce with steel head.
In the situation that the roller spacing is larger, it is very unsettled using higher threading speed, when the band steel head is bent downwardly, takes the lead not to be the tangential direction operation along roller, but to hit at a high speed roller-way, easily jumps up after being rebounded.When impinging upon on the equipment such as pinch roll memorial archway when the band steel head of jumping up, probably can't nip pinch roll smoothly and produce the steel scrap accident.Coiling machine band steel head is jumped up steel scrap one to being to batch the steel scrap accidents that unit is sent out at most, and the direct indexs such as the whole main rolling line of impact and even production capacity, the percent defective of whole hot rolling mill, the rate of becoming a useful person of steel scrap accident.
Pinch roll impression defect problem.
Simultaneously, usually, in order to obtain good scroll quality, side lead device with steel head by applying certain clamping force to it later on.Side is led device and steel edge portion can produce friction inevitably like this, can cause thus two problems: at first, side leads device and the steel edge portion friction can produce a large amount of metal fragments, and in a single day these chips enter pinch roll, very easily forms the impression defective at belt steel surface; Secondly, side is led device and is rubbed for a long time with the band steel, can cause that also side leads unit temp and have rising, affects wearability and the service life of device.
For overcoming the problems referred to above, before pinch roll, designed various side-spraying devices, but these side-spraying devices exist all and can not adapt to side and lead the shortcomings such as band steel head bump damage that the device aperture changes, easily jumped up in the past.
The method of line is produced in other hot rollings
Learn by interchange and data check, a lot of newly-built hot rollings product lines have been considered the impact of roller-way spacing on threading stability when design in the world., for example, the engineers of Nippon Steel thinks, for overcoming the problems referred to above, the distance of shaft centers of roller-way diameter and adjacent two rollers should be designed to 3:4.But still have at present a lot of hot rolling lines to exist the roller spacing to design problem excessive, the threading poor stability.In addition, because the needs of technique, it is impossible improving threading stability by the approach that reduces threading speed, and it is very huge to reduce the improvement expenses of roller-way spacing, does not have effectively solution so lines are produced at present these hot rollings.
The utility model content
For overcoming the problems referred to above, the utility model purpose is, a kind of hot rolling coiler guard plate apparatus is provided, and the anti-device of jumping up with the steel band steel head of design prevented the steel scrap accident before described hot rolling coiler guard plate apparatus tied up to pinch roll, reduced the excessive impact on threading stability of roller-way spacing.In addition, in this device, hide and designed top spray water, be used on the one hand purging side and lead the metal fragment that device produces with the steel edge portion friction, reduce therefore and the belt steel surface impression defective of generation; Can the effective cooling side lead device on the other hand, improve its wearability.
Hot rolling coiler guard plate apparatus technical scheme of the present utility model is as follows:
A kind of hot rolling coiler guard plate apparatus, the side that is arranged at the finish rolling operation of hot rolling leads after device 30 and the end roller-way 20, before the coiling machine, comprise: be located at side and lead pinch roll 40, pinch roll memorial archway 41 after device 30 and the end roller-way 20, be installed on top pinch roll framework 42, top pinch roll 43 and bottom pinch roll 44 on the pinch roll memorial archway 41, it is characterized in that
The backplate 60 that has a down dip in the 20 1 side settings of the end of pinch roll memorial archway 41 roller-way, backplate 60 is made of the approaching face 61 that has a down dip, gusset 62, base plate 63 parts, approaching face 61 is supported by some gussets 62, gusset is welded on the base plate 63, base plate is fixed on the pinch roll memorial archway 41 by some bolts 64, makes to draw the descending along the approaching face 61 that backplate 60 has a down dip with steel of end roller-way 20.
Because almost being 90 with the roller-way face, the equipment such as pinch roll memorial archway spends, so when impinging upon on the equipment such as pinch roll memorial archway when the band steel head of jumping up, probably can't nip pinch roll smoothly and produce the steel scrap accident.According to the hot rolling coiler of the present utility model backplate that has a down dip, its approaching face and roller plane form the angle that has a down dip of a 20-60 degree, can play smooth importing with the descending effect of steel.
According to hot rolling coiler guard plate apparatus of the present utility model, it is characterized in that, wherein, the approaching face 61 that has a down dip and roller plane form the angle of 20-60 degree.
According to hot rolling coiler guard plate apparatus of the present utility model, above-mentioned angle 20-60 degree can play smooth importing with the effect of steel.Approaching face 61 is supported by some gussets 62, and gusset is welded on the base plate 63, and base plate is fixed on the pinch roll memorial archway 41 by some bolts 64.
According to hot rolling coiler guard plate apparatus of the present utility model, it is characterized in that, the inside of backplate 60 is equipped with the built-in nozzle 65 that 2-4 nozzle do not expose approaching face 61.
Owing to changing the front side spray of pinch roll in the past into top spray, and being built in backplate inside, can not be subjected to side to lead the impact with steel head that the device aperture changes and jumps up, the effect of purging and cooling is good than side spray.
According to hot rolling coiler guard plate apparatus of the present utility model, it is characterized in that, the approaching face 61 that has a down dip is 40 degree with the angle that roller plane forms.
According to hot rolling coiler guard plate apparatus of the present utility model, the anti-device of jumping up with the steel band steel head of design prevented the steel scrap accident before described hot rolling coiler guard plate apparatus tied up to pinch roll, reduced the excessive impact on threading stability of roller-way spacing.In addition, in this device, hide and designed nozzle, be used on the one hand purging side and lead the metal fragment that device produces with the steel edge portion friction, reduce therefore and the belt steel surface impression defective of generation; Can the effective cooling side lead device on the other hand, improve its wearability.
Description of drawings
Fig. 1 is pinch roll and the guard plate apparatus schematic diagram thereof of hot rolling coiler.
Fig. 2 is a kind of hot rolling coiler guard plate apparatus front view of the present utility model.
Fig. 3 is the top view of Fig. 2 hot rolling coiler guard plate apparatus.
Among the figure, 10 are the band steel, and 20 is roller-way, and 30 lead device for the side of coiling machine, side is led device in order to the up band steel that advances of roller-way is carried out descending guiding, 11 are the band steel head, and 40 is pinch roll, is located at side to lead after the device 30,41 is the pinch roll memorial archway, top pinch roll framework 42 is installed on it and top pinch roll 43,45 is withdrawal roll oil cylinder, lifts and depress action with what realize top pinch roll 43.44 is bottom pinch roll, and 60 is (bearing block) backplate, and 61 is approaching face, and 62 is gusset, and 63 base plates consist of the bearing block backplate, 64 bolts.
The specific embodiment
Below, with specific embodiment, describe hot rolling coiler guard plate apparatus of the present utility model in detail.
Embodiment
A kind of hot rolling coiler guard plate apparatus is implemented at 3 coiling machines that Baogang Stocks Trading Co.'s hot rolling mill 2050 produces line on August 8th, 2011.Wherein, the angle of approaching face and roller plane is designed to 40 degree.
The hot rolling coiler guard plate apparatus of the present embodiment is comprised of backplate and two parts of top spray water:
As shown in Figure 2, backplate 60 is comprised of parts such as approaching face 61, gusset 62, base plate 63 and bolts.Wherein, there is an angle in approaching face 61 with roller plane.Through overtesting and updating, this angle 20-60 degree can play smooth importing with the effect of steel.Approaching face 61 is supported by some gussets 62, and gusset is welded on the base plate 63, and base plate is fixed on the pinch roll memorial archway 41 by some bolts 64.
Only built-in nozzle 65 of 2-4 is installed in the inside of backplate 60, and nozzle does not expose approaching face 61, is the bump with steel head in order to prevent from jumping up like this.Nozzle is sprayed water from top to bottom, and pressure is 5-15bar.The nozzle scattering angle just in time can cover side and lead the minimum aperture of device and maximum opening.
According to hot rolling coiler guard plate apparatus of the present utility model, the anti-device of jumping up with the steel band steel head of design prevented the steel scrap accident before described hot rolling coiler guard plate apparatus tied up to pinch roll, reduced the excessive impact on threading stability of roller-way spacing.In addition, in this device, hide and designed top spray water, be used on the one hand purging side and lead the metal fragment that device produces with the steel edge portion friction, reduce therefore and the belt steel surface impression defective of generation; Can the effective cooling side lead device on the other hand, improve its wearability.
Claims (4)
1. hot rolling coiler guard plate apparatus, the side that is arranged at the finish rolling operation of hot rolling lead device (30) and end roller-way (20) afterwards, before the coiling machine, comprise: be located at side and lead afterwards pinch roll (40), pinch roll memorial archway (41) of device (30) and end roller-way (20), be installed on top pinch roll framework (42), top pinch roll (43) and bottom pinch roll (44) on the pinch roll memorial archway (41), it is characterized in that
The backplate (60) that has a down dip in end roller-way (20) the one side settings of pinch roll memorial archway (41), described backplate (60) is made of the approaching face that has a down dip (61), gusset (62), base plate (63) parts, approaching face (61) is supported by some gussets (62), gusset is welded on the base plate (63), base plate is fixed on the pinch roll memorial archway (41) by some bolts (64), makes the band steel that draws end roller-way (20) descending along the approaching face (61) that backplate (60) has a down dip.
2. hot rolling coiler guard plate apparatus as claimed in claim 1 is characterized in that, wherein, the described approaching face that has a down dip (61) and roller plane form the angle of 20-60 degree.
3. hot rolling coiler guard plate apparatus as claimed in claim 1 is characterized in that, the inside of described backplate (60) is equipped with the built-in nozzle (65) that 2-4 nozzle do not expose approaching face (61).
4. hot rolling coiler guard plate apparatus as claimed in claim 1 is characterized in that, the approaching face that has a down dip (61) is 40 degree with the angle that roller plane forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120541647 CN202638959U (en) | 2011-12-21 | 2011-12-21 | Guard board device for hot rolling reeling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120541647 CN202638959U (en) | 2011-12-21 | 2011-12-21 | Guard board device for hot rolling reeling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202638959U true CN202638959U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120541647 Expired - Fee Related CN202638959U (en) | 2011-12-21 | 2011-12-21 | Guard board device for hot rolling reeling machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202638959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111451196A (en) * | 2020-04-07 | 2020-07-28 | 山东钢铁集团日照有限公司 | Hot rolling coiling machine front roller table sweeps device |
-
2011
- 2011-12-21 CN CN 201120541647 patent/CN202638959U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111451196A (en) * | 2020-04-07 | 2020-07-28 | 山东钢铁集团日照有限公司 | Hot rolling coiling machine front roller table sweeps device |
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| 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: 20130102 Termination date: 20201221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |