CN201632472U - Steel rail universal mill production line - Google Patents
Steel rail universal mill production line Download PDFInfo
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- CN201632472U CN201632472U CN2009203171444U CN200920317144U CN201632472U CN 201632472 U CN201632472 U CN 201632472U CN 2009203171444 U CN2009203171444 U CN 2009203171444U CN 200920317144 U CN200920317144 U CN 200920317144U CN 201632472 U CN201632472 U CN 201632472U
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- rail
- mill
- omnipotent
- inclination
- angle
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Abstract
The utility model discloses a steel rail universal mill production line, which can solve the problem of lower single-pass milling amount of horizontal rollers of a universal intermediate mill and a universal finishing mill by designing horizontal rollers of mills in the production line. The production line comprises a universal blooming mill, a universal intermediate mill and a universal finishing mill which are sequentially arranged. The inclination angles of rail bottoms of the horizontal rollers of different mills are gradually decreased to the inclination angle of a rail bottom of a standard cross section of a steel rail according to the milling sequence from the universal blooming mill, the universal intermediate mill and then to the universal finishing mill. The steel rail universal mill production line can effectively solve the problem of lower single-pass milling amount of the horizontal rollers of the universal intermediate mill U2 and the universal finishing mill UF, reduce production cost and improve product quality.
Description
Technical field
The utility model relates to rail universal mill production line.
Background technology
As shown in Figure 1, the rail standard section is made up of rail head 1, the web of the rail 2, the flange of rail 3 three parts.The standard section of the different defineds of rail standard is also different.As shown in Figure 2, the flange of rail nearside wheel profile of its standard sections of rail such as UIC60 of Chinese 60kg/m rail, UIC Standards constitutes by circular arc R 1, the inboard profile first straight line L1 of the flange of rail, circular arc R 2, the inboard profile second straight line L2 of the flange of rail, circular arc R 3.The angle of inboard profile first straight line L1 of the flange of rail and vertical line is the angle of inclination X of the inboard profile first straight line L1 of the flange of rail
S, the angle of inboard profile second straight line L2 of the flange of rail and vertical line is the angle of inclination Y of the inboard profile second straight line L2 of the flange of rail
SThe X of different rail standard codes
S, Y
SValue has nothing in common with each other.The application is with the angle of inclination X of the inboard profile first straight line L1 of the flange of rail
SAnd the angle of inclination Y of the inboard profile second straight line L2 of the flange of rail
SBe referred to as the flange of rail angle of inclination of rail standard section.
Shown in Fig. 3～5, when adopting omnipotent method to produce rail, the pass of omnipotent blooming mill U1, omnipotent middle milling train U2 is formed by four rolls, promptly goes up horizontal roller 401, rail head edger roll 502, following horizontal roller 402 and flange of rail edger roll 501.Omnipotent finishing mill UF pass is made up of three rolls, promptly goes up horizontal roller 401, flange of rail edger roll 501 and following horizontal roller 402.Inboard profile first straight line L1 of the described rail flange of rail and the inboard profile second straight line L2 of the flange of rail are by the flange of rail angle of inclination moulding of the horizontal roller 4 of each milling train.The flange of rail angle of inclination that is each milling train horizontal roller 4 comprises the first angle of inclination X of the inboard profile first straight line L1 of the corresponding flange of rail and the second angle of inclination Y of the inboard profile second straight line L2 of the corresponding rail flange of rail.
Omnipotent blooming mill U1 in the existing rail universal mill production line, omnipotent in the first angle of inclination X of each horizontal roller 4 among milling train U2 and the omnipotent finishing mill UF and the second angle of inclination Y respectively with the angle of inclination X of the inboard profile first straight line L1 of the flange of rail of rail standard section
SAnd the angle of inclination Y of the inboard profile second straight line L2 of the flange of rail
SEquate, i.e. X
1=X
2=X
n=X
S(N is the milling train numbering, is 1,2,3 by rolling order value successively ...), Y
1=Y
2=Y
n=Y
S(N represents the milling train numbering, is 1,2,3 by rolling order value successively ...).This design causes the leg point drafts maximum of omnipotent middle milling train U2 and omnipotent finishing mill UF, drafts takes second place in the leg, and the force-bearing situation of leg root drafts minimum, rolled piece leg tip temperature is minimum in addition, thereby cause taking second place in the leg point serious wear, leg of horizontal roller 4, and the leg root is the lightest.Simultaneously, because the gradient of the inboard profile second straight line L2 of the flange of rail of the close web of the rail is 5 times away from the inboard profile first straight line L1 of the flange of rail of the web of the rail, because the wearing and tearing of the inboard profile first straight line L1 of the flange of rail are serious than the inboard profile second straight line L2 of the flange of rail, thereby roll use back turning recovery difficulty, single diameter turning amount reaches 40mm.Therefore, in order to guarantee the qualified and roll turning recovery of specification, must reduce roll single amount of rolling, increase the roll change frequency, thereby cause production cost to increase, product quality decline.
The utility model content
The technical problem that the utility model solved provides a kind of rail universal mill production line, can solve the horizontal roll single amount of rolling problem on the low side of omnipotent middle milling train U2 and omnipotent finishing mill UF by the design to each milling train horizontal roller in this production line.
The technical scheme that solves the problems of the technologies described above is: rail universal mill production line, comprise the omnipotent blooming mill that sets gradually, omnipotent middle milling train and omnipotent finishing mill, according to milling train is again to the rolling order of omnipotent finishing mill to omnipotent from omnipotent blooming mill, the flange of rail angle of inclination of different milling train horizontal roller is decreased to the flange of rail angle of inclination of rail standard section gradually.
The beneficial effects of the utility model are: the utility model can effectively solve the horizontal roll single amount of rolling problem on the low side of omnipotent middle milling train U2 and omnipotent finishing mill UF, reduces production costs, and has improved product quality.
Description of drawings
Fig. 1 is a rail standard section schematic diagram.
Fig. 2 is the partial enlarged drawing at a place among Fig. 1.
Fig. 3 is that the pass of omnipotent blooming mill is formed schematic diagram.
Fig. 4 is that the pass of omnipotent middle milling train is formed schematic diagram.
Fig. 5 is that the pass of omnipotent finishing mill is formed schematic diagram.
The specific embodiment
Below in conjunction with the utility model being described further with the embodiment accompanying drawing.
Shown in Fig. 3～5, rail universal mill production line, comprise the omnipotent blooming mill U1 that sets gradually, omnipotent middle milling train U2 and omnipotent finishing mill UF, according to milling train U2 is again to the rolling order of omnipotent finishing mill UF to omnipotent from omnipotent blooming mill U1, the flange of rail angle of inclination of different milling train horizontal roller 4 is decreased to the flange of rail angle of inclination of rail standard section gradually.That is to say, the flange of rail angle of inclination maximum of the horizontal roller 4 of omnipotent blooming mill U1, omnipotent in the flange of rail angle of inclination of milling train U2 take second place, and the flange of rail angle of inclination of omnipotent finishing mill UF is minimum and equal the flange of rail angle of inclination of rail standard section.Background technology part at this specification specifies the notion at " flange of rail angle of inclination of each milling train horizontal roller 4 " and " flange of rail angle of inclination of rail standard section ", so repeat no more.
The Chinese 60kg/m rail of being introduced at this specification background technology part, rail flange of rail nearside wheel profile forms such as the UIC60 of UIC Standards, the flange of rail angle of inclination of each the milling train horizontal roller 4 in the utility model rail universal mill production line comprises the first angle of inclination X of the inboard profile first straight line L1 of the corresponding rail flange of rail and the second angle of inclination Y of the inboard profile second straight line L2 of the corresponding rail flange of rail, according to described rolling order, the first angle of inclination X of each milling train horizontal roller 1 is decreased to the angle of inclination X of the inboard profile first straight line L1 of the flange of rail of rail standard section successively
S, the second angle of inclination Y of each milling train horizontal roller 1 is decreased to the angle of inclination Y of the inboard profile second straight line L2 of the flange of rail of rail standard section successively
SBelow in conjunction with following three embodiment it is specifically described.
Embodiment 1
This embodiment produces the test of UIC60 rail for adopting omnipotent method.Now flange of rail angle of inclination, each frame flange of rail drafts and three aspects of each frame amount of rolling and the existing method from each milling train horizontal roller compares.
(1) flange of rail angle of inclination of each milling train horizontal roller (seeing Table 1)
Table 1:U1, U2, UF milling train horizontal roll flange of rail angle of inclination contrast situation (unit degree)
(2) U2, UF milling train flange of rail drafts (seeing Table 2)
Table 2:U2, UF milling train flange of rail drafts contrast situation (mm of unit)
(3) U2, UF rolling mill roll single amount of rolling (seeing Table 3)
Table 3:U2, UF rolling mill roll single amount of rolling contrast situation
As seen, present embodiment U2, UF rolling mill roll single amount of rolling improve 60%, 50% respectively, and U2 roll single turning amount descends 50%.
This embodiment produces Chinese 60kg/m rail for adopting omnipotent method.Now flange of rail angle of inclination, each frame flange of rail drafts and three aspects of each frame amount of rolling and the existing method from each milling train horizontal roller compares.
(1) flange of rail angle of inclination of each milling train horizontal roller (seeing Table 4)
Table 4.U1, U2, UF milling train horizontal roll flange of rail gradient contrast situation (unit degree)
(2) flange of rail drafts (seeing Table 5)
Table 5:U2, UF milling train flange of rail drafts contrast situation (mm of unit)
(3) U2, UF rolling mill roll single amount of rolling (seeing Table 6)
Table 6:U2, UF rolling mill roll single amount of rolling contrast situation
As seen, present embodiment U2, UF rolling mill roll single amount of rolling improve 12.5%, 25% respectively.
This embodiment produces Chinese 43kg/m rail for adopting omnipotent method.Now flange of rail angle of inclination, each frame flange of rail drafts and three aspects of each frame amount of rolling and the existing method from each milling train horizontal roller compares.
(1) flange of rail angle of inclination of each milling train horizontal roller (seeing Table 7)
Table 7:U1, U2, UF milling train horizontal roll flange of rail gradient contrast situation (unit degree)
(2) flange of rail drafts (seeing Table 8)
Table 8:U2, UF milling train flange of rail drafts contrast situation (mm of unit)
(3) U2, UF rolling mill roll single amount of rolling (seeing Table 9)
Table 9:U2, UF rolling mill roll single amount of rolling contrast situation
As seen, present embodiment U2, UF rolling mill roll single amount of rolling improve 10%, 12.5% respectively.
More than among three embodiment, according to milling train U2 is again to the rolling order of omnipotent finishing mill UF to omnipotent from omnipotent blooming mill U1, the first angle of inclination X of adjacent two horizontal roller 1 differs 0.5 °～2 °; According to the rolling order from omnipotent blooming mill U1 milling train U2 to omnipotent, the second angle of inclination Y of adjacent two horizontal roller 1 differs 0.5 °～2 °; According to the rolling order of milling train U2 from omnipotent to omnipotent finishing mill UF, the second angle of inclination Y of adjacent two horizontal roller 1 differs 1 °～4 °.
Claims (6)
1. rail universal mill production line, comprise the omnipotent blooming mill (U1) that sets gradually, omnipotent middle milling train (U2) and omnipotent finishing mill (UF), it is characterized in that: according to milling train (U2) is again to the rolling order of omnipotent finishing mill (UF) to omnipotent from omnipotent blooming mill (U1), the flange of rail angle of inclination of different milling train horizontal roller (4) is decreased to the flange of rail angle of inclination of rail standard section gradually.
2. rail universal mill production line as claimed in claim 1, it is characterized in that: the flange of rail angle of inclination of each milling train horizontal roller (4) comprises first angle of inclination (X) of inboard profile first straight line of the corresponding rail flange of rail (L1) and second angle of inclination (Y) of inboard profile second straight line of the corresponding rail flange of rail (L2), according to described rolling order, first angle of inclination (X) of each milling train horizontal roller (1) is decreased to the angle of inclination (X of inboard profile first straight line of the flange of rail (L1) of rail standard section successively
s), second angle of inclination (Y) of each milling train horizontal roller (1) is decreased to the angle of inclination (Y of inboard profile second straight line of the flange of rail (L2) of rail standard section successively
s).
3. rail universal mill production line as claimed in claim 2, it is characterized in that: according to milling train (U2) is again to the order of omnipotent finishing mill (UF) to omnipotent from omnipotent blooming mill (U1), first angle of inclination (X) of adjacent two horizontal roller (1) differs 0.5 °～2 °.
4. as claim 2 or 3 described rail universal mill production lines, it is characterized in that: according to the order from omnipotent blooming mill (U1) milling train (U2) to omnipotent, second angle of inclination (Y) of adjacent two horizontal roller (1) differs 0.5 °～2 °.
5. as claim 2 or 3 described rail universal mill production lines, it is characterized in that: according to the order of milling train from omnipotent (U2) to omnipotent finishing mill (UF), second angle of inclination (Y) of adjacent two horizontal roller (1) differs 1 °～4 °.
6. rail universal mill production line as claimed in claim 4 is characterized in that: according to the order of milling train from omnipotent (U2) to omnipotent finishing mill (UF), second angle of inclination (Y) of adjacent two horizontal roller (1) differs 1 °～4 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203171444U CN201632472U (en) | 2009-12-11 | 2009-12-11 | Steel rail universal mill production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203171444U CN201632472U (en) | 2009-12-11 | 2009-12-11 | Steel rail universal mill production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201632472U true CN201632472U (en) | 2010-11-17 |
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ID=43076945
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203171444U Expired - Fee Related CN201632472U (en) | 2009-12-11 | 2009-12-11 | Steel rail universal mill production line |
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| CN (1) | CN201632472U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172631A (en) * | 2011-01-17 | 2011-09-07 | 攀钢集团钢铁钒钛股份有限公司 | Device for removing iron scales bonded on horizontal roller of universal rolling mill |
| CN102773260A (en) * | 2011-05-12 | 2012-11-14 | 攀钢集团有限公司 | Method for rolling steel rail by universal rolling mill |
| WO2014117519A1 (en) * | 2013-02-01 | 2014-08-07 | 中冶赛迪工程技术股份有限公司 | Compact universal vertical steel rail rolling method |
| CN108672498A (en) * | 2018-05-11 | 2018-10-19 | 鞍钢股份有限公司 | A kind of edging mill pass and rolling mill practice of the steel rail rolling with bottom edger roll |
| CN110280595A (en) * | 2019-04-15 | 2019-09-27 | 山东钢铁股份有限公司 | Novel combination type fashioned iron universal mill abnormity edger roll and fashioned iron universal mill |
-
2009
- 2009-12-11 CN CN2009203171444U patent/CN201632472U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172631A (en) * | 2011-01-17 | 2011-09-07 | 攀钢集团钢铁钒钛股份有限公司 | Device for removing iron scales bonded on horizontal roller of universal rolling mill |
| CN102773260A (en) * | 2011-05-12 | 2012-11-14 | 攀钢集团有限公司 | Method for rolling steel rail by universal rolling mill |
| WO2014117519A1 (en) * | 2013-02-01 | 2014-08-07 | 中冶赛迪工程技术股份有限公司 | Compact universal vertical steel rail rolling method |
| CN108672498A (en) * | 2018-05-11 | 2018-10-19 | 鞍钢股份有限公司 | A kind of edging mill pass and rolling mill practice of the steel rail rolling with bottom edger roll |
| CN110280595A (en) * | 2019-04-15 | 2019-09-27 | 山东钢铁股份有限公司 | Novel combination type fashioned iron universal mill abnormity edger roll and fashioned iron universal mill |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20161211 |