CN106964656B - A kind of super abrasive hot rolled strip production line side deflector roll - Google Patents
A kind of super abrasive hot rolled strip production line side deflector roll Download PDFInfo
- Publication number
- CN106964656B CN106964656B CN201710387675.XA CN201710387675A CN106964656B CN 106964656 B CN106964656 B CN 106964656B CN 201710387675 A CN201710387675 A CN 201710387675A CN 106964656 B CN106964656 B CN 106964656B
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- China
- Prior art keywords
- support shaft
- hot rolled
- deflector roll
- rolled strip
- collars
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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
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a kind of super abrasive hot rolled strip production line side deflector rolls, the mandrel includes support shaft and the connecting shaft positioned at support shaft upper and lower ends, the bottom of the support shaft has saddle, external screw thread is opened up at the top of the support shaft, the clamp nut is connected on the external screw thread of support shaft, the multiple collars sequentially coaxially heart is interference fitted in support shaft clamp nut between saddle, inwardly there is sunk structure, the sunk structure to be recessed to the connecting shaft of mandrel lower end along support shaft bottom margin for the bottom of the support shaft；The collars includes lined steel pipe and ceramic layer, and ceramic layer die casting is simultaneously sintered outer wall in lined steel pipe, and the ceramic layer is TiC/Fe layers.The present invention can improve the online usage time of all kinds of side guiders on hot rolled strip production line, and largely reduce time and the difficulty of its operation and maintenance, reduce maintenance number, improving repairing for side deflector roll remanufactures possibility simultaneously, it reduces and remanufactures difficulty, improve the lumber recovery of cold rolled sheet.
Description
Technical field
The present invention relates to a kind of hot rolled strip production line upper side edge support guide mechanism more particularly to a kind of super abrasive
Hot rolled strip production line side deflector roll.
Background technology
Currently, the mainly various guide and guards being oriented to for lateral support on hot rolled strip production line.Existing hot rolling
Strip production line early period always using the guide and guard with wearing plate, in steel band high speed (8m/s) operational process, guide and guard it is resistance to
Nog plate is contacted with steel band two sides, belongs to sliding friction, can be brought to strip two sides compared with macrolesion, especially be rolled silicon steel etc.
When the softer strip of hardness, wearing plate can scratch strip both sides, and (four oxidations three after oxidation of more spark can be formed by scratching
Iron or ferric oxide particle), it can splash and adhere to steel strip surface, in addition, strip both sides also will produce undaform deformation,
It is commonly called as scollop, scallop.After cold rolling, oxide particle can be embedded into cold-rolled strip due to hardness height, form steel band defect, sternly
Strip lumber recovery is affected again；Scollop, scallop can not also completely eliminate, it is ensured that the quality of strip, trimming that will be excessive also make
The lumber recovery for obtaining strip declines.
Occur adding the mode of side deflector roll in various guide and guard in the recent period to improve the negative effect caused by sliding friction,
But the problems such as due to the use of material, roller in use makes moderate progress to said effect, but roller service life is short, online
It replaces frequent.And in order to ensure that roll support effect barrel length generally can be relatively long, but its practical Fast Wearing
Region but all concentrates on a certain height section of roller, the i.e. centre line zone of strip operation, so as to cause roller reality
Only local section serious wear when use, other places are not worn substantially.But as long as, just must be right after this regions wear
Entire roller is replaced, this just significantly increases operation, maintenance cost.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of super abrasive hot rolled strip production line sides
Deflector roll can improve wear-resisting property.
The present invention is achieved by the following technical solutions, and a kind of super abrasive hot rolled strip production line of the present invention is led with side
Roller, including mandrel, clamp nut and multiple collars；The mandrel includes support shaft and the connection positioned at support shaft upper and lower ends
The bottom of axis, the support shaft has saddle, opens up external screw thread at the top of the support shaft, the clamp nut is connected to bearing
On the external screw thread of axis, the multiple collars sequentially coaxially heart is interference fitted in support shaft clamp nut between saddle, described
The bottom of support shaft inwardly has sunk structure, connecting shaft of the sunk structure along support shaft bottom margin to mandrel lower end recessed
It falls into；The collars includes lined steel pipe and ceramic layer, and ceramic layer die casting is simultaneously sintered outer wall in lined steel pipe, and the ceramic layer is
TiC/Fe layers.
The collars is laminated structure, and the height of the collars is 10~70mm.It can be selected according to the height of actual plate band
Select multiple collars sockets.
The sunk structure and the angle of mandrel radial direction are 15~75 °, and the sunk structure is along the depth of mandrel axial direction
20~50mm.Control angle and depth, it can be ensured that flow will not rise on collars.
The collars is laminated structure, and the height of the collars is 10~70mm.
The hardness of the ceramic layer is 300~450HB.The intensity that collars can be improved using ceramic layer, by sintering
The control to hardness is realized in the control of temperature and time.
The ceramic layer by weight, including following components：TiC 25~35%, Fe 55~65%, Mo 3~5%, Cr
2.2~4%, C 0.2~0.6%, impurity 0.5~1.5%.
The preparation method of the ceramic layer is as follows：It is sintered under the vacuum less than 30Pa after each component is mixed, 5~
1160~1220 DEG C are to slowly warm up within 7 hours, 1~2 hour aftershaping of heat preservation sintering.
The side guide and guard include two side guide bodies being oppositely arranged, and in each side guide body there are multiple sides to lead
Roller forms the transmission channel for hot rolled plate transmission between two side guide bodies, is opened up in the side guide body corresponding
Clamping mouth, the short transverse setting of clamping opening's edge side guide body, the side deflector roll is clamped in the clamping mouth, described
Clamping mouth cross section is major arc, is respectively equipped with bearing block at the top and bottom of the clamping mouth, the side deflector roll passes through upper and lower two
The connecting shaft at end is connected in the bearing block at the top and bottom of clamping mouth.
Wearing plate is set along its length in the side guide body, and the roll surface of collars is along side guide and guard sheet on the side deflector roll
Body width direction protrudes from plane where wearing plate.Can ensure with hot rolled plate be in direct contact be collars on the deflector roll of side roller
Face.
The bottom of transmission channel between described two side guide bodies is equipped with multiple rebounds.
The rebound is arranged under corresponding side deflector roll.Prevent hot rolled plate in side deflector roll position downwarp to influence plate
The quality of band.
The present invention has the following advantages compared with prior art：Guide and guard on the upside of its production line can be greatly improved in the present invention
Online usage time, and largely reduce time and the difficulty of its operation and maintenance, reduce maintenance number, carry simultaneously
High repairing for side deflector roll remanufactures possibility, reduces and remanufactures difficulty, significantly reduces spare parts purchasing and operation is tieed up
Shield expense.And the quality of hot rolled strip can be greatly improved, and then the larger lumber recovery for improving cold rolled sheet.
Description of the drawings
Fig. 1 is the side guide roller structure schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of collars；
Fig. 3 is the structural schematic diagram of side guide and guard.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
As shown in Figures 1 to 3, the side guide and guard of the present embodiment include two side guide bodies 1 being oppositely arranged, each side guide and guard
Tool forms the transmission channel for hot rolled plate transmission, the side there are three side deflector roll 2, between two side guide bodies 1 on ontology 1
Corresponding clamping mouth 11 is opened up in guide body 1, the clamping mouth 11 is arranged along the short transverse of side guide body 1, the side
Deflector roll 2 is clamped in the clamping mouth 11, and 11 cross section of clamping mouth is major arc, the top and bottom point of the clamping mouth 11
Not She You bearing block 12, the side deflector roll 2 is connected to the axis of the top and bottom of clamping mouth 11 by the connecting shaft 21 of upper and lower ends
In bearing 12.
Wearing plate 13 is set along its length in the side guide body 1 of the present embodiment, the roll surface of collars on the side deflector roll 2
13 place plane of wearing plate is protruded from along 1 width direction of side guide body.Can ensure to be in direct contact with hot rolled plate is that side is led
The roll surface of collars on roller 2.
The bottom of transmission channel between two side guide bodies 1 of the present embodiment is equipped with rebound 14, the rebound
14 are arranged under corresponding side deflector roll 2.Prevent hot rolled plate in the 2 position downwarp of side deflector roll to influence the quality of strip.
The side deflector roll 2 of the present embodiment includes mandrel, clamp nut 23 and multiple collars 24；The mandrel includes support shaft 22
There is saddle 25 with the bottom of the connecting shaft 21 positioned at 22 upper and lower ends of support shaft, the support shaft 22, the support shaft 22
Top opens up external screw thread, and the clamp nut 23 is connected on the external screw thread of support shaft 22, and the multiple collars 24 is sequentially coaxially
The heart is interference fitted in clamp nut 23 in support shaft 22, and, between saddle 25, the bottom of the support shaft 22 inwardly has recess knot
Structure 26, the sunk structure 26 are recessed along 22 bottom margin of support shaft to the connecting shaft 21 of mandrel lower end；The collars 24 includes
Lined steel pipe 241 and ceramic layer 242,242 die casting of ceramic layer are simultaneously sintered outer wall in lined steel pipe 241, and the ceramic layer 242 is
TiC/Fe layers.
The collars 24 is laminated structure, and the height of the collars 24 is 50mm.It can be selected according to the height of practical plank
Select the socket of multiple collars 24.
Sunk structure and the angle α of mandrel radial direction are 20 °, and the sunk structure is 20mm along the depth of mandrel axial direction.Control
Controlling angle and depth, it can be ensured that flow will not rise on collars 24.
The ceramic layer 242 by weight, including following components：TiC 30%, Fe 60%, Mo 5%, Cr 3%, C
0.5%, impurity 1.5%.
The preparation method of the ceramic layer 242 is as follows：It is sintered under the vacuum less than 30Pa after each component is mixed,
1200 DEG C are to slowly warm up within 6 hours, 1~2 hour aftershaping of heat preservation sintering.
The hardness of the ceramic layer 242 is 400HB.The intensity that collars 24 can be improved using ceramic layer 242, by burning
The control to hardness is realized in the control of junction temperature and time.
The collars 24 of sheet can rationally be adjusted according to roller using the thickness of location plate band, the piece that collars 24 uses
Number, i.e. wear-resistant surface range, then be adjusted according to collars 24 using the range that slides up and down of location plate band.One is used in collars 24
It reaches the standard grade again use after being adjusted to installation site of the collars 24 on mandrel according to 24 abrasion condition of collars after the section time.
In order to ensure the impact resistance of collars 24, using interference fit between collars 24 and mandrel, it is ensured that between collars 24 and mandrel
It is very close to each other.And it is compressed by clamp nut 23, it is ensured that collars 24 is held against state between each other.Because of production
There is shower water on line, so in order to ensure that the sealing performance of bearing block 12, the bottom of support shaft 22 inwardly have sunk structure 26,
It can effectively prevent spray aqueous reflux.
In order to improve the wear-resisting property of collars 24, TiC/Fe ceramic materials is selected to make collars 24.Collars 24 is with liner
Steel pipe 241 is matrix, in the outside die casting TiC/Fe ceramic layers 242 of lined steel pipe 241, and through high-temperature vacuum sinter molding.It is logical
The hardness of burning junction temperature and sintering time control collars 24.Ensure the super wear resistance energy of collars 24, while ensureing that it has again
Good toughness and impact resistance lead to 24 fragmentation of collars when strip being avoided to hit collars 24.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of super abrasive hot rolled strip production line side deflector roll, which is characterized in that including mandrel, clamp nut and multiple rollers
Ring；The mandrel includes support shaft and the connecting shaft positioned at support shaft upper and lower ends, and the bottom of the support shaft has saddle, institute
It states and opens up external screw thread at the top of support shaft, the clamp nut is connected on the external screw thread of support shaft, and the multiple collars is successively
For the concentric clamp nut that is interference fitted in support shaft between saddle, the bottom of the support shaft inwardly has sunk structure,
The sunk structure is recessed along support shaft bottom margin to the connecting shaft of mandrel lower end；The collars includes lined steel pipe and ceramics
In the outer wall of lined steel pipe, the ceramic layer is TiC/Fe layers for layer, ceramic layer die casting and sintering.
2. a kind of super abrasive hot rolled strip production line side deflector roll according to claim 1, which is characterized in that the recess
The angle of structure and mandrel radial direction is 15~75 °, and the sunk structure is 20~50mm along the depth of mandrel axial direction.
3. a kind of super abrasive hot rolled strip production line side deflector roll according to claim 1, which is characterized in that the collars
Height for laminated structure, the collars is 10~70mm.
4. a kind of super abrasive hot rolled strip production line side deflector roll according to claim 3, which is characterized in that the ceramics
The hardness of layer is 300~450HB.
5. a kind of super abrasive hot rolled strip production line side deflector roll according to claim 1, which is characterized in that the ceramics
Layer by weight, including following components：TiC 25~35%, Fe 55~65%, Mo 3~5%, Cr 2.2~4%, C 0.2
~0.6%, impurity 0.5~1.5%.
6. a kind of super abrasive hot rolled strip production line side deflector roll according to claim 5, which is characterized in that the ceramics
The preparation method of layer is as follows：It is sintered, is to slowly warm up under the vacuum less than 30Pa after each component is mixed within 5~7 hours
1160~1220 DEG C, 1~2 hour aftershaping of heat preservation sintering.
7. a kind of hot rolled strip side guide and guard using side deflector roll described in claim 1, which is characterized in that the side guide and guard include
Two side guide bodies being oppositely arranged, have multiple side deflector rolls in each side guide body, shape between two side guide bodies
At the transmission channel transmitted for hot rolled plate, corresponding clamping mouth is opened up in the side guide body, clamping opening's edge side is led
The short transverse setting of ontology is defended, the side deflector roll is clamped in the clamping mouth, and clamping mouth cross section is major arc, described
Bearing block is respectively equipped at the top and bottom of clamping mouth, the side deflector roll is connected to clamping mouth top by the connecting shaft of upper and lower ends
In the bearing block of portion and bottom.
8. a kind of hot rolled strip side guide and guard according to claim 7, which is characterized in that the side guide body upper edge length
Wearing plate is arranged in direction, on the side deflector roll roll surface of collars along side guide body width direction protrude from wearing plate where it is flat
Face.
9. a kind of hot rolled strip side guide and guard according to claim 7, which is characterized in that between described two side guide bodies
Transmission channel bottom be equipped with multiple rebounds.
10. a kind of hot rolled strip side guide and guard according to claim 9, which is characterized in that the rebound is arranged in correspondence
Side deflector roll under.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710387675.XA CN106964656B (en) | 2017-05-27 | 2017-05-27 | A kind of super abrasive hot rolled strip production line side deflector roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710387675.XA CN106964656B (en) | 2017-05-27 | 2017-05-27 | A kind of super abrasive hot rolled strip production line side deflector roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106964656A CN106964656A (en) | 2017-07-21 |
| CN106964656B true CN106964656B (en) | 2018-08-14 |
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ID=59326827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710387675.XA Active CN106964656B (en) | 2017-05-27 | 2017-05-27 | A kind of super abrasive hot rolled strip production line side deflector roll |
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| CN (1) | CN106964656B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3552723A1 (en) * | 2018-04-12 | 2019-10-16 | Primetals Technologies Austria GmbH | Device and method for guiding metal strips with grinding bodies having a carrier member |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2533708B2 (en) * | 1991-12-13 | 1996-09-11 | 新日本製鐵株式会社 | Winding device for hot rolled steel sheet |
| JP2005014057A (en) * | 2003-06-26 | 2005-01-20 | Jfe Steel Kk | Hot-rolling equipment and method for passing hot-rolled steel strip |
| CN203900115U (en) * | 2014-05-13 | 2014-10-29 | 武汉钢铁(集团)公司 | Strip steel centering set with side guide rolls |
| CN204503788U (en) * | 2015-03-25 | 2015-07-29 | 武汉钢铁(集团)公司 | A kind of cold-strip steel dynamic correcting side guide and guards |
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- 2017-05-27 CN CN201710387675.XA patent/CN106964656B/en active Active
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| CN106964656A (en) | 2017-07-21 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 243003 Intersection of Zhaoming Road and Xinhua Road, Cihu High-tech Zone, Ma'anshan City, Anhui Province Co-patentee after: Ma'anshan Iron and Steel Co., Ltd. Patentee after: Anhui Masteel Surface Technology Co., Ltd. Address before: 243003 Intersection of Zhaoming Road and Xinhua Road, Cihu High-tech Zone, Ma'anshan City, Anhui Province Co-patentee before: Ma'anshan Iron and Steel Co., Ltd. Patentee before: Ma'anshan Ma Steel Surface Engineering Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |