CN104001722A - Roll for hot rolling - Google Patents
Roll for hot rolling Download PDFInfo
- Publication number
- CN104001722A CN104001722A CN201410024647.8A CN201410024647A CN104001722A CN 104001722 A CN104001722 A CN 104001722A CN 201410024647 A CN201410024647 A CN 201410024647A CN 104001722 A CN104001722 A CN 104001722A
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- China
- Prior art keywords
- roll
- roller shell
- section
- hot
- roller
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Abstract
The invention discloses a roll for hot rolling. The roll for hot rolling comprises a roll core and a roll sleeve. The roll core comprises a roll body, a roll neck and a joint; the roll sleeve is sleeved on the roll body; the outer diameter of the roll neck is smaller than the outer diameter of the roll body; the roll body is provided with a limiting convex section; the limiting convex section is arranged at one end of the roll body far away from the roll neck; one end of the roll body opposite to the roll neck is provided with a limiting roll ring. As the limiting convex section is arranged at one end of the roll body far away from the roll neck, the roll sleeve after being sleeved into the roll body by the joint is limited by the limiting convex section; furthermore, as the limiting roll ring is sleeved on the roll body, the limiting roll ring and the limiting convex section cooperate to fix the roll sleeve in the axial direction. The roll sleeve is fixed efficiently and is prevented from sliding axially; the roll for hot rolling is good in working stability, firm as well as reliable in structure and long in service life.
Description
Technical field
The present invention relates to a kind of roll, more particularly, it relates to a kind of roll for hot-rolling.
Background technology
Hot rolling can significantly reduce energy consumption, reduces costs.During hot rolling, plastic deformation is high, and resistance of deformation is low, has greatly reduced the energy consumption of flow of metal.Important devices when roll is hot-rolled metal material, is arranged in frame and uses.When metal material is deformed bulk or other shapes, by two parallel gaps that are fixed on the roll in frame of axis, passed, be rolled into the metal sheet or the band that reach user's required thickness.
Roll can be divided into solid roll, metallurgical composite roll and assembly roller by manufacturing process.Edge cover assembly roller is by adopting roller core and roller shell two parts shrink-on of interference fit to form, belonging to a kind of of assembly roller.Roll mainly comprises roller core and roller shell, and roller shell is socketed on roller core, and metal material is mainly through the space rolling processing of two roll top roll inner rooms, and roller core comprises the body of roll, roll neck and joint.Prior art is generally tended to try every possible means from roller case material and heat treatment method, or flow to, improve cooling effectiveness and set about from improving roller shell and the water-cooled of roller core contact-making surface, but for the economic and practical replaceable roller shell of employing and select rational roller shell mounting means etc. also not relate to.When metal material passes through roll, roll will be subject to the combined stress of tangential stretching and radial compression, thereby cause roller shell easily to produce heat fatigue cracking in addition; Thereby between roller surface and processed metal material, produce besides the shortening that relative rolling and friction cause roll working life.
Summary of the invention
The deficiency existing for prior art, the object of the present invention is to provide a kind of roll for hot-rolling, and this kind of roll good operating stability sound construction is reliable, long service life.
For achieving the above object, the invention provides following technical scheme:
A kind of roll for hot-rolling, comprise roller core and roller shell, described roller core comprises the body of roll, roll neck and joint, described roller shell is sheathed on the body of roll, described roll neck external diameter is less than body of roll external diameter, the described body of roll is provided with limit convex section, and described limit convex section is located at the body of roll away from one end of roll neck, and one end of the relative roll neck of the described body of roll is arranged with spacing collars.
By adopting technique scheme, at the body of roll, away from the one end of rolling roll neck, limit convex section is set, roller shell is inserted in after the body of roll protruding section of limited location by joint place end roller shell is played to position-limiting action like this, again at the sheathed spacing collars of the body of roll, spacing collars and limit convex section cooperate at axial direction fixes roller shell, effectively fixedly roller shell prevents roller shell axial slip, and good operating stability sound construction is reliable, and roll working life is long.
Further improvement as technique scheme: the described body of roll is provided with construction section and the compression section for coordinating with spacing collars, the body of roll is located near one end of roll neck in described compression section, described construction section is located between compression section and limit convex section, and described limit convex section external diameter is greater than compression section external diameter.
By adopting technique scheme, limit convex section external diameter is greater than compression section external diameter, roller shell not joint axial displacement dorsad after being socketed on the body of roll like this, compression section is set and connects spacing collars, roller shell is socketed in after construction section like this, conflict and be connected with limit convex section in roller shell one end, the other end is undertaken spacing by the spacing collars being socketed on compression section, thereby carry out spacing at axial pair roller cover, when needing the metal material process roll of hot rolling, relative rolling between roll outer wall and metal material reduces, the relative minimizing of combined stress of the suffered tangential stretching of roll and radial compression, effectively improve the service life of roll.
The present invention is further set to: described construction section outer wall is provided with contact layer, described contact layer gap is provided with the installation fixed strip that some cross section semicirculars in shape arrange, described roller shell inwall gap is provided with some cross section semicirculars in shape roller shell fixed strip is set, and the summit of described any roller shell fixed strip is on the gap of installing between fixed strip.
By adopting technique scheme, contact layer is set to be contacted with roller shell, some roller shell fixed strips that contact layer arranges some installation fixed strips and the setting of roller shell inwall cooperatively interact, the summit of any roller shell fixed strip is arranged on the gap of installing between fixed strip, so any one summit that fixed strip is installed also will be arranged on the gap between roller shell fixed strip, metal material is when Roller Machining, the axial tensile force producing between roller surface and metal material and being born by limit convex section and spacing collars, effectively prevent the axial rolling of roller shell, frictional force between roller surface and metal material and radial compression force are born and are decomposed by some installation fixed strips and some roller shell fixed strips of matched in clearance, effectively prevent the circumferential rolling of roller shell, at axial and circumferential, decompose suffered power the fixed hub of roll, structural design is solid and reliable stable, effectively improve the service life of roll.
The present invention is further set to: described roller shell and spacing collars all coordinate with roller core hot jacket.
By adopting technique scheme, roller shell and spacing collars coordinate with roller core hot jacket, adopt principle of expanding with heat and contracting with cold, roller shell and spacing collars hot jacket are on roller core, at the cooling rear roller shell of temperature and spacing collars, all reach the object of interference fit with roller core, further strengthen coupling stiffness and structural strength between roller shell and spacing collars and roller core.
The present invention is further set to: described construction section external diameter is less than compression section external diameter.
By adopting technique scheme, construction section external diameter is less than compression section external diameter, construction section is depression and arranges on the body of roll like this, roller shell be socketed on construction section after compression section and limit convex section pair roller cover carry out spacingly, further strengthen the structural strength between roller shell and roller core.
The present invention is further set to: described construction section axial length and roller shell axial length are suitable.
By adopting technique scheme, easier for installation when construction section axial length and roller shell axial length are suitable between construction section and roller shell, structure is more stable.
The present invention is further set to: described roller core adopts No. 45 steel fine finishining to form.
By adopting technique scheme, No. 45 hardness of steel is high, has good machinability, and obtaining good toughness and wearability through after suitable heat treatment, can effectively guarantee firmness and abrasion resistance between roller core and roller shell.
The present invention is further set to: described roller shell and spacing collars all adopt 42 Cr Mo Ni alloys to make.
By adopting technique scheme, it is small that 42 Cr Mo Ni alloys have stronger wearability, non-oxidizability, corrosion resistance and machining deformation, anti-fatigue performance is good, can better guarantee to be not easy wearing and tearing and be corroded, roller shell and spacing collars longer service life when rolled metal material.
The present invention is further set to: described roller shell and spacing collars all coordinate with roller core hot jacket.
By adopting technique scheme, roller shell and spacing collars all have good processing characteristics, with firm stable more after the moulding of roller core hot jacket.
The present invention is further set to: described construction section external diameter is less than compression section external diameter.
By adopting technique scheme, construction section external diameter is less than compression section external diameter, construction section is depression and arranges on the body of roll like this, roller shell be socketed on construction section after compression section and limit convex section pair roller cover carry out spacingly, further strengthen the structural strength between roller shell and roller core.
Accompanying drawing explanation
Fig. 1 is the structural representation of roll for hot-rolling the first embodiment of the present invention;
Fig. 2 is the structural representation of roll for hot-rolling the second embodiment of the present invention;
Fig. 3 is the front view of roll for hot-rolling embodiment of the present invention;
Fig. 4 is A-A cutaway view in Fig. 3.
Reference numeral:
1, roller core; 11, joint; 12, roll neck; 13, the body of roll; 131, compression section; 132, construction section; 1321, fixed strip is installed; 133, limit convex section; 2, roller shell; 21, roller shell fixed strip; 3, spacing collars.
The specific embodiment
Referring to figs. 1 through Fig. 4, roll for hot-rolling embodiment of the present invention is described further.
A kind of roll for hot-rolling, comprise roller core 1 and roller shell 2, described roller core 1 comprises the body of roll 13, roll neck 12 and joint 11, described roller shell 2 is sheathed on the body of roll 13, described roll neck 12 external diameters are less than the body of roll 13 external diameters, the described body of roll 13 is provided with limit convex section 133, and described limit convex section 133 is located at the body of roll 13 away from one end of roll neck 12, and one end of the described body of roll 13 relative roll necks 12 is arranged with spacing collars 3.As shown in Figure 1, in the present embodiment, the body of roll 13 is provided with construction section 132 and the compression section 131 for coordinating with spacing collars 3, the body of roll 13 is located near one end of roll neck 12 in described compression section 131, described construction section 132 is located between compression section 131 and limit convex section 133, and described limit convex section 133 external diameters are greater than compression section 131 external diameters.
By adopting technique scheme, at the body of roll 13, away from the one end of rolling roll neck 12, limit convex section 133 is set, roller shell 2 is inserted in protruding section of 133 pairs of roller shells 2 of the rear limited location of the body of roll 13 by joint 11 place ends and plays position-limiting action like this, again at the sheathed spacing collars 3 of the body of roll 13, spacing collars 3 and limit convex section 133 cooperate at axial direction fixes roller shell 2, effectively fixedly roller shell 2 prevents roller shell 2 axial slips, and good operating stability sound construction is reliable, and roll working life is long.Limit convex section 133 external diameters are greater than compression section 131 external diameters, roller shell 2 not joint 11 axial displacements dorsad after being socketed on the body of roll 13 like this, compression section 131 is set and connects spacing collars 3, roller shell 2 is socketed in after construction section 132 like this, conflict and be connected with limit convex section 133 in roller shell 2 one end, the other end is undertaken spacing by the spacing collars 3 being socketed on compression section 131, thereby axially to roller shell 2, carrying out spacing, when needing the metal material process roll of hot rolling, relative rolling between roll outer wall and metal material reduces, the relative minimizing of combined stress of the suffered tangential stretching of roll and radial compression, effectively improve the service life of roll.
As shown in Figures 2 to 4, in the present embodiment, construction section 132 outer walls are provided with contact layer, described contact layer gap is provided with the installation fixed strip 1321 that some cross section semicirculars in shape arrange, described roller shell 2 inwall gaps are provided with some cross section semicirculars in shape roller shell fixed strip 21 are set, and the summit of described any roller shell fixed strip 21 is on the gap of installing between fixed strip 1321.By adopting technique scheme, contact layer is set to be contacted with roller shell 2, contact layer arranges some installation fixed strips 1321 and cooperatively interacts with some roller shell fixed strips 21 of roller shell 2 inwall settings, the summit of any roller shell fixed strip 21 is arranged on the gap of installing between fixed strip 1321, so any one summit that fixed strip 1321 is installed also will be arranged on the gap between roller shell fixed strip 21, metal material is when Roller Machining, the axial tensile force producing between roller surface and metal material and being born by limit convex section 133 and spacing collars 3, effectively prevent the axial rolling of roller shell 2, frictional force between roller surface and metal material and radial compression force are born and are decomposed by some installation fixed strips 1321 and some roller shell fixed strips 21 of matched in clearance, effectively prevent the circumferential rolling of roller shell 2, at axial and circumferential, decompose suffered power the fixed hub of roll, structural design is solid and reliable stable, effectively improve the service life of roll.
Described roller shell 2 and spacing collars 3 all coordinate with roller core 1 hot jacket.By adopting technique scheme, roller shell 2 and spacing collars 3 coordinate with roller core 1 hot jacket, adopt principle of expanding with heat and contracting with cold, roller shell 2 and spacing collars 3 hot jackets are on roller core 1, at the cooling rear roller shell 2 of temperature, all reach the object of interference fit with roller core 1 with spacing collars 3, further strengthen coupling stiffness and the structural strength of 1 of roller shell 2 and spacing collars 3 and roller core.
It should be noted that in above-described embodiment, described construction section 132 external diameters are less than compression section 131 external diameters, construction section 132 external diameters are less than compression section 131 external diameters, construction section 132 is depression setting on the body of roll 13 like this, after roller shell 2 is socketed on construction section 132, compression section 131 and 133 pairs of roller shells of limit convex section 2 carry out spacingly, further strengthen the structural strength between roller shell 2 and roller core 1; Described construction section 132 axial lengths and roller shell 2 axial lengths are suitable; , construction section 132 axial lengths and roller shell 2 axial lengths easier for installation between construction section 132 and roller shell 2 when suitable, structure is more stable.
Separately it should be noted that, described roller core 1 adopts No. 45 steel fine finishining to form.No. 45 hardness of steel is high, has good machinability, and obtaining good toughness and wearability through after suitable heat treatment, can effectively guarantee firmness and abrasion resistance between roller core 1 and roller shell 2.Described roller shell 2 and spacing collars 3 all adopt 42 Cr Mo Ni alloys to make.By adopting technique scheme, it is small that 42 Cr Mo Ni alloys have stronger wearability, non-oxidizability, corrosion resistance and machining deformation, anti-fatigue performance is good, can better guarantee to be not easy wearing and tearing and be corroded, roller shell 2 and spacing collars 3 longer service life when rolled metal material.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment, and all technical schemes belonging under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a roll for hot-rolling, comprise roller core and roller shell, described roller core comprises the body of roll, roll neck and joint, described roller shell is sheathed on the body of roll, it is characterized in that: described roll neck external diameter is less than body of roll external diameter, the described body of roll is provided with limit convex section, and described limit convex section is located at the body of roll away from one end of roll neck, and one end of the relative roll neck of the described body of roll is arranged with spacing collars.
2. roll for hot-rolling according to claim 1, it is characterized in that: the described body of roll is provided with construction section and the compression section for coordinating with spacing collars, the body of roll is located near one end of roll neck in described compression section, described construction section is located between compression section and limit convex section, and described limit convex section external diameter is greater than compression section external diameter.
3. roll for hot-rolling according to claim 2, it is characterized in that: described construction section outer wall is provided with contact layer, described contact layer gap is provided with the installation fixed strip that some cross section semicirculars in shape arrange, described roller shell inwall gap is provided with some cross section semicirculars in shape roller shell fixed strip is set, and the summit of described any roller shell fixed strip is on the gap of installing between fixed strip.
4. according to the roll for hot-rolling described in any one in claims 1 to 3, it is characterized in that: described roller shell and spacing collars all coordinate with roller core hot jacket.
5. roll for hot-rolling according to claim 4, is characterized in that: described construction section external diameter is less than compression section external diameter.
6. according to the roll for hot-rolling described in claim 2 or 3, it is characterized in that: described construction section axial length and roller shell axial length are suitable.
7. roll for hot-rolling according to claim 6, is characterized in that: described roller core adopts No. 45 steel fine finishining to form.
8. roll for hot-rolling according to claim 7, is characterized in that: described roller shell and spacing collars all adopt 42 Cr Mo Ni alloys to make.
9. roll for hot-rolling according to claim 8, is characterized in that: described roller shell and spacing collars all coordinate with roller core hot jacket.
10. roll for hot-rolling according to claim 9, is characterized in that: described construction section external diameter is less than compression section external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024647.8A CN104001722A (en) | 2014-01-20 | 2014-01-20 | Roll for hot rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024647.8A CN104001722A (en) | 2014-01-20 | 2014-01-20 | Roll for hot rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104001722A true CN104001722A (en) | 2014-08-27 |
Family
ID=51362795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410024647.8A Pending CN104001722A (en) | 2014-01-20 | 2014-01-20 | Roll for hot rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104001722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127202A (en) * | 2015-08-28 | 2015-12-09 | 中钢集团邢台机械轧辊有限公司 | Combined vertical roll for 1450 hot-strip mill |
| CN106825054A (en) * | 2017-02-16 | 2017-06-13 | 郑州新交通汽车板簧有限公司 | A kind of new roller structure for manufacturing changeable section plate spring |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE824693A (en) * | 1975-01-23 | 1975-05-15 | MIXED ROLLER CYLINDER | |
| JPS63317206A (en) * | 1987-06-19 | 1988-12-26 | Kubota Ltd | Builtup roll for rolling h-shape steel flange end |
| CN1035964A (en) * | 1988-07-30 | 1989-10-04 | 郑州市上街有色金属合金厂 | Cold-rolling aluminium figured plate working roller and manufacturing process thereof |
| CN2361398Y (en) * | 1999-03-19 | 2000-02-02 | 郑建房 | Automatic stress-regulating combined roll |
| CN2399124Y (en) * | 1999-11-29 | 2000-10-04 | 刘晓星 | Roll for hot-rolling |
| CN101291751A (en) * | 2005-10-21 | 2008-10-22 | 西门子Vai金属科技有限公司 | Multiple piece roll |
| CN201862622U (en) * | 2010-11-23 | 2011-06-15 | 大连冶金工具厂有限公司 | Roller |
| CN202316504U (en) * | 2011-11-18 | 2012-07-11 | 南通惠通针布有限公司 | Roller |
| CN202683603U (en) * | 2012-07-30 | 2013-01-23 | 重庆镪镔实业有限公司 | Combined roller |
| CN203018458U (en) * | 2012-12-30 | 2013-06-26 | 重庆川深金属新材料股份有限公司 | Spline type locking composite roll |
| CN203343175U (en) * | 2013-06-21 | 2013-12-18 | 中钢集团邢台机械轧辊有限公司 | Horizontal roll of universal rolling mill |
-
2014
- 2014-01-20 CN CN201410024647.8A patent/CN104001722A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE824693A (en) * | 1975-01-23 | 1975-05-15 | MIXED ROLLER CYLINDER | |
| JPS63317206A (en) * | 1987-06-19 | 1988-12-26 | Kubota Ltd | Builtup roll for rolling h-shape steel flange end |
| CN1035964A (en) * | 1988-07-30 | 1989-10-04 | 郑州市上街有色金属合金厂 | Cold-rolling aluminium figured plate working roller and manufacturing process thereof |
| CN2361398Y (en) * | 1999-03-19 | 2000-02-02 | 郑建房 | Automatic stress-regulating combined roll |
| CN2399124Y (en) * | 1999-11-29 | 2000-10-04 | 刘晓星 | Roll for hot-rolling |
| CN101291751A (en) * | 2005-10-21 | 2008-10-22 | 西门子Vai金属科技有限公司 | Multiple piece roll |
| CN201862622U (en) * | 2010-11-23 | 2011-06-15 | 大连冶金工具厂有限公司 | Roller |
| CN202316504U (en) * | 2011-11-18 | 2012-07-11 | 南通惠通针布有限公司 | Roller |
| CN202683603U (en) * | 2012-07-30 | 2013-01-23 | 重庆镪镔实业有限公司 | Combined roller |
| CN203018458U (en) * | 2012-12-30 | 2013-06-26 | 重庆川深金属新材料股份有限公司 | Spline type locking composite roll |
| CN203343175U (en) * | 2013-06-21 | 2013-12-18 | 中钢集团邢台机械轧辊有限公司 | Horizontal roll of universal rolling mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127202A (en) * | 2015-08-28 | 2015-12-09 | 中钢集团邢台机械轧辊有限公司 | Combined vertical roll for 1450 hot-strip mill |
| CN106825054A (en) * | 2017-02-16 | 2017-06-13 | 郑州新交通汽车板簧有限公司 | A kind of new roller structure for manufacturing changeable section plate spring |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140827 |