CN1282820A - Wing rail with special cross section for frog of movable rail and its manufacture - Google Patents
Wing rail with special cross section for frog of movable rail and its manufacture Download PDFInfo
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- CN1282820A CN1282820A CN 99115836 CN99115836A CN1282820A CN 1282820 A CN1282820 A CN 1282820A CN 99115836 CN99115836 CN 99115836 CN 99115836 A CN99115836 A CN 99115836A CN 1282820 A CN1282820 A CN 1282820A
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Abstract
A wing rail with special cross section for movable switch fork of railway is made up of steel rail 60 AT as raw-material through forging through forging into shape. The obtained wing rail features that its central segment has a special cross section, that is, at one end, the rail waist is same as the standard rail, the width of rail bottom is less than that of standard rail and the width of rail head is same as the standard rail, and at another end, the rail waist is thicker than standard rail, the width of rail bottom is same as the standard rail and the width of rail heat is greater than that of standard rail. Its advantages include high strength, long service life and meeting the high-speed requirement.
Description
The present invention relates to a kind of Wing rail with special cross section for frog of movable rail and manufacture method thereof.
At present, the wing rail in the movable-point crossing that uses on the railway is at the flange of rail of the throat excision working edge of railway frog and form with the standard gauge of 60kg/m.Because excision flange of rail section forms the short value of cross section inertia of wing rail and reduces, the bending resistant section coefficient reduces, the more important thing is, the vertical principal axis of inertia generation of the vertical principal axis of inertia deflection of this wing rail with rail, cause the stress distribution of the wing rail flange of rail unbalanced, excision flange of rail place stress increases considerably, and stress is poor, intensity reduces, can not be by fatigue test.Make this wing rail become the weak link of whole railway frog, directly influence the application life of railway movable-point crossing.
The object of the present invention is to provide a kind of Wing rail with special cross section for frog of movable rail and manufacture method thereof, the vertical principal axis of inertia of its wing rail special cross section is approximate parallel with the vertical principal axis of inertia of standard rail, thereby make the stress distribution of the wing rail flange of rail in a basic balance, and intensity height, life-span is long, and service condition is good.
The design scheme of Wing rail with special cross section for frog of movable rail of the present invention is: a kind of Wing rail with special cross section for frog of movable rail, the both ends rail bodies (1) of described wing rail are the 60AT rail, the web of the rail thickness of the one section rail body in middle part (2) is thicker than the web of the rail of standard gauge, and flange of rail thickness is thicker than the flange of rail of standard gauge; And the web of the rail thickness of a side and the web of the rail thickness of standard gauge equate, flange of rail width is littler than the flange of rail width of standard gauge, the rail head width of rail head width and standard gauge equates, the web of the rail thickness of opposite side is thicker than the web of the rail of standard gauge, the flange of rail width of flange of rail width and standard gauge equates that the rail head width is bigger than the rail head width of standard gauge.
The flange of rail width of one section rail body (2) one side in middle part is than the little 55mm of flange of rail width of standard gauge, flange of rail thickness is than the big 16～20mm of flange of rail thickness of standard gauge relevant position, the web of the rail thickness of opposite side is than the big 7.5～10mm of web of the rail thickness of standard gauge, flange of rail thickness is than the big 7～10mm of flange of rail thickness of standard gauge, and the rail head width is than the big 19.5～22.5mm of rail head width of standard gauge.The changeover portion (3) of the web of the rail of the wide variety Duan Yuqi both ends 60AT rail (1) of the big thickness section of the web of the rail, the flange of rail of the one section rail body in middle part (2) and rail head, the flange of rail, the flange of rail, rail head is type linearly.Length 〉=the 400mm of the one section special cross section rail body in middle part (2), the rail body length of both sides changeover portion (3) is about 150mm, described standard gauge is the 60kg/m standard gauge.
The manufacture method of Wing rail with special cross section for frog of movable rail: with the 60AT rail is raw material, its middle part one section rail body (2) and changeover portion rail body (3) are heated to initial forging temperature, forging and pressing make the distortion of the one section rail body in middle part (2) substep make special cross section then, and make the middle part one section rail body (2) the web of the rail, big thickness section of the flange of rail and rail head, the web of the rail of the wide variety section of the flange of rail and both ends 60AT rail (1), the flange of rail, the changeover portion of rail head (3) is type linearly, to spoil directly after the wing rail normalizing of excellent suitability for press forming, and the bottom surface machine of middle part one section special cross section rail body (2) flange of rail will be added the planeness that guarantees special cross section rail height and flange of rail bottom surface.
The substep deformation process is:
1. the part of drawing money on credit of the 60AT rail flange of rail is crooked to flange of rail aspect, and be pressed into the web of the rail and the compression its flange of rail weak point prop up part length;
2. the short branch of the flange of rail is divided to be compressed to the position, simultaneously the compression section web of the rail thickness web of the rail that grows tall;
3.) web of the rail flange of rail is shaped;
4. the jumping-up rail head is shaped comprehensively.
The present invention compared with prior art, because this wing rail is to be raw material with the 60AT rail, using the forging and pressing plastic forming process makes, and make its middle part form special cross section, and the vertical principal axis of inertia of special cross section is approximate parallel with the vertical principal axis of inertia of standard rail, make the stress distribution of the wing rail flange of rail in a basic balance, the moment of inertia of its special cross section, intensity and fatigue limit are all than existing wing rail height after tested, therefore its service condition is good, long service life can satisfy speed-raising, the high-speed railway requirement to the movable-point crossing wing rail.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1.
1,2 embodiments of the invention are described in conjunction with the accompanying drawings.
Described wing rail both ends rail bodies (1) are the 60AT rail, the web of the rail thickness of one section 400mm rail body (2) one siding track waist thickness in middle part and standard gauge equates, flange of rail width is than the little 55mm of flange of rail width of standard gauge, flange of rail thickness is than the big 16～20mm of flange of rail thickness of standard gauge relevant position, the rail head width of rail head width and standard gauge equates, the web of the rail thickness of opposite side is than the big 7.5～10mm of web of the rail thickness of standard gauge, the flange of rail width of flange of rail width and standard gauge equates that flange of rail thickness is than the big 7～10mm of flange of rail thickness of standard gauge; The rail head width is than the big 19.5～22.5mm of rail head width of standard gauge.The 150mm changeover portion (3) of the web of the rail of the 60AT rail (1) at the wide variety Duan Yuqi both ends of the big thickness section of the web of the rail, the flange of rail and rail head, the flange of rail, the flange of rail, rail head type linearly in addition, described standard gauge is the 60kg/m standard gauge.
Manufacture method: with the 60AT rail is raw material, one section rail body in middle part (2) and changeover portion rail body (3) are heated to initial forging temperature (about 1200 ℃), pass through Forging Technology, at first that the part of drawing money on credit of the flange of rail is crooked to flange of rail aspect, and the weak point that is pressed at the bottom of the web of the rail and the compressed tracks props up part length, short branch branch with the flange of rail is compressed to the position then, the compression section web of the rail thickness web of the rail that grows tall simultaneously, make the web of the rail again, the flange of rail is shaped, last jumping-up rail head is shaped comprehensively and makes special cross section, and make the middle part one section rail body (2) the web of the rail, big thickness section of the flange of rail and rail head, the web of the rail of the wide variety section of the flange of rail and both ends 60AT rail (1), the flange of rail, the changeover portion of rail head (3) is type linearly, it is straight to be spoilt in wing rail normalizing (about the 830 ℃) back of excellent suitability for press forming, and the bottom surface machine of middle part one section special cross section rail body (2) flange of rail is added the planeness that guarantees special cross section rail height and flange of rail bottom surface.So just made the one section rail body in middle part (2) and be special cross section, both ends rail bodies (1) are the Wing rail with special cross section for frog of movable rail of 60AT rail.The characteristic parameter of its special cross section is:
1. the long flange of rail and 60kg/m standard rail are isometric to be 75mm, thickness is 20 ±
Mm;
2. with the adjacent wide 20mm of the flange of rail of long heart rail conversion flange, thickness is 40
Mm;
3. the web of the rail thick 24
Mm;
4. rail head is wide by 93.5
Mm;
5. the rail head lower jaw all adopts 1: 3 gradient;
6. the high identical 176mm that is of rail with the 60kg/m standard gauge;
7. total basal area 9057mm
2
8. every meter quality is 71.1kg;
9. the moment of inertia to horizontal axis is 3345.53cm
4
10. the moment of inertia to vertical axis is 486.00cm
4
Claims (6)
1, a kind of Wing rail with special cross section for frog of movable rail is characterized in that: the both ends rail bodies (1) of described wing rail are the 60AT rail, and the web of the rail thickness of the one section rail body in middle part (2) is thicker than the web of the rail of standard gauge, and flange of rail thickness is thicker than the flange of rail of standard gauge; And the web of the rail thickness of a side and the web of the rail thickness of standard gauge equate, flange of rail width is littler than the flange of rail width of standard gauge, the rail head width of rail head width and standard gauge equates, the web of the rail thickness of opposite side is thicker than the web of the rail of standard gauge, the flange of rail width of flange of rail width and standard gauge equates that the rail head width is bigger than the rail head width of standard gauge.
2, Wing rail with special cross section for frog of movable rail according to claim 1, it is characterized in that: the flange of rail width of middle part one section rail body (2) one sides is than the little 55mm of flange of rail width of standard gauge, flange of rail thickness is than the big 16～20mm of flange of rail thickness of standard gauge relevant position, the web of the rail thickness of opposite side is than the big 7.5～10mm of web of the rail thickness of standard gauge, flange of rail thickness is than the big 7～10mm of flange of rail thickness of standard gauge, and the rail head width is than the big 19.5～22.5mm of rail head width of standard gauge.
3, Wing rail with special cross section for frog of movable rail according to claim 1 is characterized in that: the changeover portion (3) of the web of the rail of the wide variety Duan Yuqi both ends 60AT rail (1) of big thickness section of the web of the rail, the flange of rail of the one section rail body in middle part (2) and rail head, the flange of rail, the flange of rail, rail head is type linearly.
4, Wing rail with special cross section for frog of movable rail according to claim 1 is characterized in that: the length 〉=400mm of middle part one section special cross section rail body (2), the length of both sides changeover portion rail bodies (3) is about 150mm.
5, a kind of manufacture method of Wing rail with special cross section for frog of movable rail, it is characterized in that: with the 60AT rail is raw material, its middle part one section rail body (2) and changeover portion rail body (3) are heated to initial forging temperature, forging and pressing make the distortion of the one section rail body in middle part (2) substep make special cross section then, and make the middle part one section rail body (2) the web of the rail, big thickness section of the flange of rail and rail head, the web of the rail of the wide variety section of the flange of rail and both ends 60AT rail (1), the flange of rail, the changeover portion of rail head (3) is type linearly, will be after the wing rail normalizing of excellent suitability for press forming tender straight, and the bottom surface machine of middle part one section special cross section rail body (2) flange of rail added the rail height that guarantees special cross section and the planeness of flange of rail bottom surface.
6, the manufacture method of Wing rail with special cross section for frog of movable rail according to claim 4 is characterized in that the substep deformation process is:
1. the part of drawing money on credit of the 60AT rail flange of rail is crooked to flange of rail aspect, and be pressed into the web of the rail and the compression its flange of rail weak point prop up part length;
2. the short branch of the flange of rail is divided to be compressed to the position, simultaneously the compression section web of the rail thickness web of the rail that grows tall;
3. make again with regard to the waist flange of rail and be shaped;
4. the jumping-up rail head is shaped comprehensively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99115836 CN1111226C (en) | 1999-08-02 | 1999-08-02 | Wing rail with special cross section for frog of movable rail and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99115836 CN1111226C (en) | 1999-08-02 | 1999-08-02 | Wing rail with special cross section for frog of movable rail and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1282820A true CN1282820A (en) | 2001-02-07 |
| CN1111226C CN1111226C (en) | 2003-06-11 |
Family
ID=5278740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99115836 Expired - Lifetime CN1111226C (en) | 1999-08-02 | 1999-08-02 | Wing rail with special cross section for frog of movable rail and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1111226C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642773B (en) * | 2009-08-31 | 2011-04-06 | 攀钢集团钢铁钒钛股份有限公司 | Production line of special section wing rail and manufacturing method thereof |
| CN102581192A (en) * | 2012-02-17 | 2012-07-18 | 天津市天锻压力机有限公司 | Wing rail upsetting device |
| CN109112907A (en) * | 2018-09-04 | 2019-01-01 | 中铁宝桥集团有限公司 | A kind of wing rail toe-end structure and its forming method |
-
1999
- 1999-08-02 CN CN 99115836 patent/CN1111226C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642773B (en) * | 2009-08-31 | 2011-04-06 | 攀钢集团钢铁钒钛股份有限公司 | Production line of special section wing rail and manufacturing method thereof |
| CN102581192A (en) * | 2012-02-17 | 2012-07-18 | 天津市天锻压力机有限公司 | Wing rail upsetting device |
| CN102581192B (en) * | 2012-02-17 | 2016-04-06 | 天津市天锻压力机有限公司 | A kind of Wing rail upsetting device |
| CN109112907A (en) * | 2018-09-04 | 2019-01-01 | 中铁宝桥集团有限公司 | A kind of wing rail toe-end structure and its forming method |
| CN109112907B (en) * | 2018-09-04 | 2023-08-25 | 中铁宝桥集团有限公司 | Wing rail toe end structure and forming method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1111226C (en) | 2003-06-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA RAILWAY BAOJI BRIDGE GROUP CO., LTD. Free format text: FORMER NAME: BAOQIAO CO., LTD., MINISTRY OF RAILWAYS |
|
| CP03 | Change of name, title or address |
Address after: 721006 Baoji Qing Jiang Road, Shaanxi, No. 80 Patentee after: China Railway Baoji Bridge Group Co., Ltd. Address before: Baoji City, Shaanxi Province, Sichuan Shaanxi Road 721006 Patentee before: Baoqiao Co., Ltd., Ministry of Railways |
|
| CX01 | Expiry of patent term |
Granted publication date: 20030611 |
|
| CX01 | Expiry of patent term |