CN205110722U - Sufficient roller device of multidimension chamfer of chamfer continuous casting billet - Google Patents
Sufficient roller device of multidimension chamfer of chamfer continuous casting billet Download PDFInfo
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- CN205110722U CN205110722U CN201520830491.2U CN201520830491U CN205110722U CN 205110722 U CN205110722 U CN 205110722U CN 201520830491 U CN201520830491 U CN 201520830491U CN 205110722 U CN205110722 U CN 205110722U
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- chamfering
- fillet surface
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- chamfer
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Abstract
The utility model relates to a sufficient roller device of multidimension chamfer of chamfer continuous casting billet, include: bearing frame, axle, take chamfer roll body and end cover, the axle is worn to establish on the bearing frame, take the chamfer roll body to set up the tip at the axle, end cover and bearing frame cooperation fixed band chamfer roll body, the bight working face of taking the chamfer roll body includes: first chamfer face, second chamfer face and holding surface, first chamfer face links to each other on one side of second chamfer face, and the holding surface links to each other with the opposite side of second chamfer face, set up through arc -shaped surface between first chamfer face and the second chamfer face. The sufficient roller device of this multidimension chamfer can effectively support the casting blank, prevents chamfer casting blank chamfer face fish tail, avoids casting blank chamfer face fish tail and produces the longitudinal crack.
Description
Technical field
The utility model relates to metal smelt technical field, particularly a kind of multidimensional chamfering foot-roller unit of chamfering continuous casting billet.
Background technology
Along with the development of continuous casting technology, sheet billet continuous casting produces the steel grade that high-quality continually developed by line, and the peritectoid of casting and middle carbon progressively increase containing the element such as niobium, boron steel grade.Due in molten steel containing the element such as niobium, boron, this dvielement broadens steel grade the 3rd brittle zone, and at two cold bending sections and straightening section, strand bight temperature is easy to the brittle zone scope entering this kind of steel grade, is difficult to solve by continuous casting two cold water transfer.In order to solve strand transverse corner crack line problem, in recent years, part continuous casting crystallizer for plate billet starts to apply chamfer crystallizer and produces, and chamfer crystallizer makes strand 4 right angles become obtuse angle, improves the heat transfer of strand bight, decreases bight stress.But another difficulty that chamfer crystallizer brings is when producing containing steel grades such as niobium steel, boron-containing steels, strand bight easily produces longitudinal corner crack, foot roller is as a part for conticaster, and sufficient roller plays and goes out the support after crystallizer to base shell, is conducive to the surface quality improving strand.
In prior art, plate blank chamfering conticaster adopts fillet surface to be form of straight lines chamfering foot roller usually, and this sufficient roller fillet surface sharp corner easily scratches strand fillet surface, can produce longitudinal crack, had a strong impact on slab quality when scratching serious.
Utility model content
The multidimensional chamfering foot-roller unit of a kind of chamfering continuous casting billet that the application provides, to solve or part solves prior art mesopodium roller fillet surface sharp corner and easily scratches strand fillet surface, the technical problem of lobe can be produced when scratching serious, achieve the contact effectively improving strand fillet surface and sufficient roller fillet surface, prevent chamfering strand fillet surface from scratching, avoid strand fillet surface scratch and produce the technique effect of longitudinal crack.
This application provides a kind of multidimensional chamfering foot-roller unit of chamfering continuous casting billet, comprising: bearing block, axle, band chamfering roll body and end cap, described axle is located on described bearing block; Described band chamfering roll body is arranged on the end of described axle; Described end cap coordinates fixing described band chamfering roll body with described bearing block;
The bight working face of described band chamfering roll body comprises: the first fillet surface, the second fillet surface and supporting surface; Described first fillet surface is connected with described second fillet surface side, and described supporting surface is connected with the opposite side of described second fillet surface;
Between described first fillet surface and described second fillet surface, transition circle cambered surface is set.
As preferably, the radius of described transition circle cambered surface is 1 ~ 15mm.
As preferably, the length of described first fillet surface accounts for 1 ~ 15% of the leptoprosopy entire length of described chamfering foot-roller unit;
The length of described first fillet surface and the length sum of described second fillet surface account for 3 ~ 25% of the leptoprosopy entire length of described chamfering foot-roller unit.
As preferably, described first fillet surface, the second fillet surface and supporting surface are all plane;
The angle of described first fillet surface and described supporting surface controls to be 30 ~ 70 °;
The angle of described second fillet surface and described supporting surface controls to be 20 ~ 60 °.
As preferably, described bearing block is hollow ring structures;
Described axle is located in described bearing block;
Two described band chamfering roll bodies are suspended on the two ends of described axle respectively;
Two described band chamfering roll bodies are fixed on described bearing block by two described end caps respectively.
As preferably, described first fillet surface, the second fillet surface and supporting surface are all curved surface.
As preferably, described foot-roller unit is applicable to the strand that thickness is 150 ~ 450mm.
As preferably, when the described chamfering foot-roller unit of many groups uses, what the described chamfering foot-roller unit axle of many groups was parallel is arranged on below crystallizer leptoprosopy;
When described chamfering foot-roller unit and routine foot roller combinationally use, what described chamfering foot-roller unit was parallel with the sufficient roll shaft of described routine is arranged on below described crystallizer leptoprosopy; Described chamfering foot-roller unit is close to the below being arranged on strand.
The one or more technical schemes provided in the application, at least have following technique effect or advantage:
Owing to have employed, the bight working face of band chamfering roll body is set to the first fillet surface, the second fillet surface and supporting surface respectively, transition circle cambered surface is set between the first fillet surface and the second fillet surface.Like this, efficiently solve prior art mesopodium roller fillet surface sharp corner and easily scratch strand fillet surface, the technical problem of lobe can be produced when scratching serious, achieve the contact effectively improving strand fillet surface and sufficient roller fillet surface, make this chamfering foot-roller unit can effective supporting casting blank, prevent chamfering strand fillet surface from scratching, avoid strand fillet surface scratch and produce longitudinal crack.
Accompanying drawing explanation
The configuration diagram of the multidimensional chamfering foot-roller unit that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the size marking figure of Fig. 1.
(in diagram, the parts of each label representative are followed successively by: 1 bearing block, 2 band chamfering roll bodies, 3 axles, 4 end caps, 5 first fillet surfaces, 6 second fillet surfaces, 7 supporting surfaces, 8 transition circle cambered surfaces, 9 strands)
Detailed description of the invention
The multidimensional chamfering foot-roller unit of a kind of chamfering continuous casting billet that the embodiment of the present application provides, to solve or part solves prior art mesopodium roller fillet surface sharp corner and easily scratches strand fillet surface, the technical problem of lobe can be produced when scratching serious, by arranging transition circle cambered surface between the first fillet surface and the second fillet surface, transition circle cambered surface is set between the second fillet surface and supporting surface, and the angle of the first fillet surface and supporting surface is rationally set, the angle of the second fillet surface and supporting surface, achieve the contact effectively improving strand fillet surface and sufficient roller fillet surface, make this chamfering foot-roller unit can effective supporting casting blank, prevent chamfering strand fillet surface from scratching, avoid strand fillet surface to scratch and produce the technique effect of longitudinal crack.
See accompanying drawing 1, the embodiment of the present application provides a kind of multidimensional chamfering foot-roller unit of chamfering continuous casting billet, and comprise bearing block 1, axle 3, band chamfering roll body 2 and end cap 4, axle 3 is located on bearing block 1; The end of axle 3 is arranged on chamfering roll body 2; End cap 4 coordinates fixed band chamfering roll body 2 with bearing block 1; Bight working face with chamfering roll body 2 comprises: the first fillet surface 5, second fillet surface 6 and supporting surface 7; First fillet surface 5 is connected with the second fillet surface 6 side, and supporting surface 7 is connected with the opposite side of the second fillet surface 6; Between first fillet surface 5 and the second fillet surface 6, transition circle cambered surface 8 is set; The wedge angle of the first fillet surface 5, second fillet surface 6 and supporting surface 7 link position can be effectively avoided to scratch strand 9 bight like this.
See accompanying drawing 2, the radius of transition circle cambered surface 8 is 1 ~ 15mm; The length L1 of the first fillet surface 5 accounts for 1 ~ 15% of the leptoprosopy entire length L of chamfering foot-roller unit; The length of the first fillet surface L1 and the length sum L2 of the second fillet surface account for 3 ~ 25% of the leptoprosopy entire length L of chamfering foot-roller unit.Meanwhile, the bight of band chamfering roll body 2 and strand 9 shape of actual production adapt, and are slightly less than the bight of actual production strand 9.
As a kind of preferred embodiment, the first fillet surface 5, second fillet surface 6 and supporting surface 7 are all plane; First fillet surface 5 controls to be 30 ~ 70 ° with the angle β of supporting surface 7; Second fillet surface 6 controls to be 20 ~ 60 ° with the angle α of supporting surface 7; Wherein, angle α and angle β can not be too little, and too little meeting causes strand 9 leptoprosopy length little, affects strand 9 and lifts by crane.As another kind of preferred embodiment, the first fillet surface 5, second fillet surface 6 and supporting surface 7 are all curved surface, three-dimensional surface or multidimensional face, can be the parabola of approximate arc transition when dimension increases.
Further, bearing block 1 is the T-type structure of hollow ring type, and axle is located in bearing block; Two band chamfering roll bodies 2 are suspended on the two ends of axle 3 respectively; Two band chamfering roll bodies 2 are fixed on bearing block 1 by two end caps 4 respectively, and the bolted mode of end cap 4 is fixed on axle 3, prevent band chamfering roll body 2 from dropping.
Further, this foot-roller unit is applicable to the strand 9 that thickness is 150 ~ 450mm.
Further, when many group chamfering foot-roller units use, what many group chamfering foot-roller unit axles were parallel is arranged on below crystallizer leptoprosopy; When chamfering foot-roller unit and routine foot roller combinationally use, what chamfering foot-roller unit was parallel with routine foot roll shaft is arranged on below crystallizer leptoprosopy; Chamfering foot-roller unit is close to the below being arranged on strand 9.
Be described in detail below by the structure of specific embodiment to the multidimensional chamfering foot-roller unit of the application:
Multidimensional chamfering foot-roller unit comprises bearing block 1, axle 3, band chamfering roll body 2 and end cap 4, and bearing block 1 is hollow ring structures, and axle 3 is through bearing block 1, and bearing block 1 is T-type structure.Two band chamfering roll bodies 2 are suspended on the two ends of axle 3, and are fixed by two end caps 4 respectively; Bight working face with chamfering roll body 2 comprises: the first fillet surface 5, second fillet surface 6 and supporting surface 7; Between first fillet surface 5 and the second fillet surface 6, transition circle cambered surface 8 is set.The radius of transition circle cambered surface 8 is 5mm; The length L1 of the first fillet surface 5 accounts for 5% of the leptoprosopy entire length L of chamfering foot-roller unit; The length of the first fillet surface 5 and the length sum L2 of the second fillet surface 6 account for 15% of the leptoprosopy entire length L of chamfering foot-roller unit.First fillet surface 5, second fillet surface 6 and supporting surface 7 are all planes, and the first fillet surface 5 controls to be 42 ° with the angle β of supporting surface 7; Second fillet surface 6 controls to be 25 ° with the angle α of supporting surface 7.By the strand 9 of this multidimensional chamfering foot-roller unit for the production of thickness 230mm, strand 9 surface quality of production is good.
The one or more technical schemes provided in the application, at least have following technique effect or advantage:
Owing to have employed, the bight working face of band chamfering roll body 2 is set to the first fillet surface 5, second fillet surface 6 and supporting surface 7 respectively, transition circle cambered surface 8 is set between the first fillet surface 5 and the second fillet surface 6.Like this, efficiently solve prior art mesopodium roller fillet surface sharp corner and easily scratch strand 9 fillet surface, the technical problem of lobe can be produced when scratching serious, achieve the contact effectively improving strand 9 fillet surface and sufficient roller fillet surface, make this chamfering foot-roller unit can effective supporting casting blank 9, prevent chamfering strand 9 fillet surface from scratching, avoid strand 9 fillet surface scratch and produce longitudinal crack.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only detailed description of the invention of the present utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a multidimensional chamfering foot-roller unit for chamfering continuous casting billet, comprising: bearing block, axle, band chamfering roll body and end cap, described axle is located on described bearing block; Described band chamfering roll body is arranged on the end of described axle; Described end cap coordinates fixing described band chamfering roll body with described bearing block; It is characterized in that,
The bight working face of described band chamfering roll body comprises: the first fillet surface, the second fillet surface and supporting surface; Described first fillet surface is connected with described second fillet surface side, and described supporting surface is connected with the opposite side of described second fillet surface;
Between described first fillet surface and described second fillet surface, transition circle cambered surface is set.
2. chamfering foot-roller unit as claimed in claim 1, is characterized in that,
The radius of described transition circle cambered surface is 1 ~ 15mm.
3. chamfering foot-roller unit as claimed in claim 1, is characterized in that,
The length of described first fillet surface accounts for 1 ~ 15% of the leptoprosopy entire length of described chamfering foot-roller unit;
The length of described first fillet surface and the length sum of described second fillet surface account for 3 ~ 25% of the leptoprosopy entire length of described chamfering foot-roller unit.
4. chamfering foot-roller unit as claimed in claim 1, is characterized in that,
Described first fillet surface, the second fillet surface and supporting surface are all plane;
The angle of described first fillet surface and described supporting surface controls to be 30 ~ 70 °;
The angle of described second fillet surface and described supporting surface controls to be 20 ~ 60 °.
5. chamfering foot-roller unit as claimed in claim 1, is characterized in that,
Described bearing block is hollow ring structures;
Described axle is located in described bearing block;
Two described band chamfering roll bodies are suspended on the two ends of described axle respectively;
Two described band chamfering roll bodies are fixed on described bearing block by two described end caps respectively.
6. chamfering foot-roller unit as claimed in claim 1, is characterized in that,
Described first fillet surface, the second fillet surface and supporting surface are all curved surface.
7. chamfering foot-roller unit as claimed in claim 1, is characterized in that,
Described foot-roller unit is applicable to the strand that thickness is 150 ~ 450mm.
8. chamfering foot-roller unit as claimed in claim 1, is characterized in that,
When the described chamfering foot-roller unit of many groups uses, what the described chamfering foot-roller unit axle of many groups was parallel is arranged on below crystallizer leptoprosopy;
When described chamfering foot-roller unit and routine foot roller combinationally use, what described chamfering foot-roller unit was parallel with the sufficient roll shaft of described routine is arranged on below described crystallizer leptoprosopy; Described chamfering foot-roller unit is close to the below being arranged on strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520830491.2U CN205110722U (en) | 2015-10-23 | 2015-10-23 | Sufficient roller device of multidimension chamfer of chamfer continuous casting billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520830491.2U CN205110722U (en) | 2015-10-23 | 2015-10-23 | Sufficient roller device of multidimension chamfer of chamfer continuous casting billet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205110722U true CN205110722U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520830491.2U Active CN205110722U (en) | 2015-10-23 | 2015-10-23 | Sufficient roller device of multidimension chamfer of chamfer continuous casting billet |
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| Country | Link |
|---|---|
| CN (1) | CN205110722U (en) |
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Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |