CN111254757A - Railway turnout switch - Google Patents
Railway turnout switch Download PDFInfo
- Publication number
- CN111254757A CN111254757A CN202010163692.7A CN202010163692A CN111254757A CN 111254757 A CN111254757 A CN 111254757A CN 202010163692 A CN202010163692 A CN 202010163692A CN 111254757 A CN111254757 A CN 111254757A
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- CN
- China
- Prior art keywords
- rail
- straight
- curved
- switch
- point
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/18—Combinations of switches and crossings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/02—Tongues; Associated constructions
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/20—Safety means for switches, e.g. switch point protectors, auxiliary or guiding rail members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention provides a railway turnout switch, which comprises a stock rail and a switch rail, wherein the switch rail is arranged on the inner side of the stock rail; the stock rail comprises a straight stock rail and a curved stock rail, the switch rail comprises a curved switch rail and a linear switch rail, the straight stock rail and the curved switch rail are on the same side, and the curved stock rail and the linear switch rail are on the same side; the curved switch rail comprises a curved switch rail straight line section and a guide curve, the curved switch rail straight line section is connected with the guide curve, the curved switch rail straight line section and the guide curve are integrated, the curved switch rail straight line section is linear, and the guide curve is arc-shaped; and planing and cutting a straight basic rail head by 4-6 mm, increasing the thickness of a straight-line section rail head of the curved switch rail by 4-6 mm, and setting the contact position of the wheel rail to be 16mm downward from the highest point of the straight basic rail head. The curved switch rail of the point switch adopts a straight-curved combined line type, and the length of a straight line section of the switch rail is prolonged as much as possible within the size of a linear frame of the switch rail, so that the point switch is beneficial to reducing the impact force and the transverse force at the tip of the switch rail and protecting a weak section; the width of the rail head of the curved switch rail is increased, so that the thickness of the curved switch rail is improved, the wear resistance is improved, and the service life is prolonged.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a subway turnout switch.
Background
The rail transit has the advantages of large transport capacity, high speed, comfort, novelty, flexibility and the like, has complementarity with the traditional traffic such as high-speed rail, aviation, public transport and the like, and is a traffic tool with good development prospect.
Turnouts are important devices of track systems, and directly affect the safe operation of the track systems and even the whole track traffic system. The switches can be divided into different numbers according to different frog angles, including 9 switches, 7 switches, 12 switches and the like. The bigger the number of the turnout number, the larger the straight and side passing speed, and vice versa. According to different forms of the point switch, the point switch can be divided into an elastically bendable point switch and a heel end movable joint hinged point switch. The urban railway turnout has the problem of short service life.
There is a need for a railroad switch structure that effectively extends the service life of the switch.
Disclosure of Invention
The invention provides a railway turnout switch, aiming at solving the problem that the service life of a city railway turnout switch in the prior art is short, and the problem is solved by adopting a straight and curved combination linear mode for switch rails, slicing straight stock rails and thickening the thickness of curved switch rails.
The invention provides a railway turnout switch, which comprises a stock rail and a switch rail, wherein the switch rail is arranged on the inner side of the stock rail; the stock rail comprises a straight stock rail and a curved stock rail, the switch rail comprises a curved switch rail and a linear switch rail, the straight stock rail and the curved switch rail are on the same side, and the curved stock rail and the linear switch rail are on the same side; the curved point rail comprises a curved point rail straight line section and a guide curve, the curved point rail straight line section is longitudinally connected with the guide curve, the curved point rail straight line section and the guide curve are integrated, the curved point rail straight line section is a straight line type, the guide curve is a circular arc type, the curved point rail straight line section is the front end of the curved point rail, and the length of the curved point rail straight line section is the theoretical maximum.
The curved switch rail is a straight-curved combined line type, the straight line section of the curved switch rail is a straight line type, and the rear end of the curved switch rail is a circular curve. Within the size of the linear frame of the turnout, the length of the straight section of the curved switch rail is prolonged as much as possible, and the linear frame is beneficial to reducing the impact force and the transverse force of the tip of the switch rail and protecting the weak section.
The invention relates to a subway turnout switch, which is characterized in that as a preferred mode, a straight stock rail comprises a straight stock rail head and a straight stock rail bottom, wherein the straight stock rail head is arranged at the upper end of the straight stock rail bottom; the straight-line section of the curved switch rail comprises a straight-line section head of the curved switch rail and a straight-line section rail bottom of the curved switch rail, the straight-line section head of the curved switch rail is arranged at the upper end of the straight-line section rail bottom of the curved switch rail, and the straight basic head of the curved switch rail is in contact with the straight-line section head of the curved switch rail.
The invention relates to a subway turnout switch, which is characterized in that as a preferred mode, a curved stock rail comprises a curved stock rail head and a curved stock rail bottom, wherein the curved stock rail head is arranged at the upper end of the curved stock rail bottom; the straight switch rail comprises a straight switch rail head and a straight switch rail bottom, and the straight switch rail head is arranged at the upper end of the straight switch rail bottom.
The invention relates to a subway turnout switch, which is characterized in that as a preferred mode, a guide curve comprises a guide curve rail bottom and a guide curve rail head, the upper end of the guide curve rail bottom is provided with the guide curve rail head, the guide curve rail head is arranged at the top end of the guide curve rail bottom, the guide curve rail bottom comprises a guide curve rail bottom body and a guide curve bottom planing section, the length of the planing section of the guide curve bottom is smaller than that of the guide curve rail bottom body, and the guide curve bottom planing section is arranged on the inner side of the root end of the guide curve rail bottom body.
The rail bottom at the base end of the switch rail is planed to a certain thickness, so that the moving resistance of the switch is reduced. The prior movable joint design structure is replaced.
The invention relates to a subway turnout switch, which is used as an optimal mode, wherein a straight basic rail head is planed and cut by 4-6 mm, the thickness of a straight section rail head of a curved switch rail is increased by 4-6 mm, and the contact position of a wheel rail is that the highest point of the straight basic rail head is downward by 16 mm. .
The stock rail and the switch rail head are constructed in a mode that the width of the switch rail head is increased by additionally processing the stock rail head part closely attached to the stock rail and the switch rail head part on the premise of not changing the impact angle of the stock rail and the switch rail according to the characteristics of the tangent type switch rail, so that the strength of the switch rail is improved, and the wear resistance is improved.
The invention has the following beneficial effects:
(1) the curved switch rail adopts a straight and curved combined line type, which is beneficial to reducing the impact force and the transverse force at the tip of the switch rail and protecting the weak section;
(2) the width of the rail head of the curved switch rail is increased, so that the thickness of the switch rail is improved, the wear resistance is improved, and the service life is influenced;
(3) the rail bottom at the base end of the switch rail is planed to a certain thickness, so that the moving resistance of the switch is reduced.
Drawings
FIG. 1 is a schematic illustration of a railway turnout;
FIG. 2 is a schematic illustration of a railway turnout stock rail;
figure 3 is a schematic illustration of a railway turnout switch rail curve;
figure 4 is a schematic illustration of a railway turnout straight stock rail;
figure 5 is a schematic drawing of a straight section of a curved switch rail of a railway switch;
figure 6 is a schematic illustration of a railroad turnout stock rail;
figure 7 is a schematic view of a railway turnout switch linear point rail;
figure 8 is a schematic view of a railway turnout conductor curve;
figure 9 is a schematic view of the bottom of a railway turnout curve;
figure 10 is a schematic view of a railway point switch straight stock rail and curved point rail contact.
Reference numerals:
1. a stock rail; 11. a straight stock rail; 111. a straight basic railhead; 112. a straight basic rail bottom; 12. a curved stock rail; 121. curving a base railhead; 122. bending a basic rail bottom; 2. a point rail; 21. a curved switch rail; 211. straight-line segment of the curved switch rail; 2111. a curved switch rail straight line segment rail head; 2112. a straight-line section rail bottom of the curved switch rail; 212. leading the curve; 2121. a lead curve bottom; 21211. a guide curve rail bottom body; 21212. planing and cutting grooves at the bottoms of the guide curve rails; 2122. a guide curve railhead; 22. a linear point rail; 221. a straight point rail head; 222. straight tongue rail bottom.
Detailed Description
The technical solutions in the embodiments of the present invention will be made clear below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1, a railway switch comprises a stock rail 1 and a point rail 2, the point rail 2 being arranged inside the stock rail 1.
As shown in fig. 2, the stock rail 1 comprises a straight stock rail 11 and a curved stock rail 12, and the point rail 2 comprises a curved point rail 21 and a straight point rail 22, the straight stock rail 11 and the curved point rail 21 being on the same side, and the curved stock rail 12 and the straight point rail 22 being on the same side.
As shown in fig. 3, the curved point rail 21 includes a curved point rail straight line section 211 and a lead curve 212, the curved point rail straight line section 211 is longitudinally connected with the lead curve 212, the curved point rail straight line section 211 and the lead curve 212 are integrated, the curved point rail straight line section 211 is a straight line type, the lead curve 212 is a circular arc type, the curved point rail straight line section 211 is the front end of the curved point rail 21, and the length of the curved point rail straight line section 211 is a theoretical maximum.
As shown in fig. 4, the straight stock rail 11 includes a straight stock rail head 111 and a straight stock rail foot 112, with the straight stock rail head 111 being disposed on an upper end of the straight stock rail foot 112.
As shown in fig. 5, the straight curved point rail section 211 includes a straight curved point rail section head 2111 and a straight curved point rail section foot 2112, the straight curved point rail section head 2111 being disposed at the upper end of the straight curved point rail section foot 2112, and the straight base rail head 111 being in contact with the straight curved point rail section head 2111.
As shown in fig. 6, the curved stock rail 12 includes a curved stock rail head 121 and a curved stock rail base 122, and the curved stock rail head 121 is disposed on the curved stock rail base 122.
As shown in fig. 7, the straight point rail 22 includes a straight point rail head 221 and a straight point rail base 222, and the straight point rail head 221 is disposed on the upper end of the straight point rail base 222.
As shown in fig. 8, the curve 212 includes a curve guide base 2121 and a curve guide head 2122, and the curve guide head 2122 is disposed at the upper end of the curve guide base 2121.
As shown in fig. 9, the guide curve bottom 2121 comprises a guide curve bottom body 21211 and a guide curve bottom sliced section 21212, the length of the guide curve bottom sliced section 21212 is smaller than the length of the guide curve bottom body 21211, and the guide curve bottom sliced section 21212 is disposed inside the root end of the guide curve bottom body 21211.
As shown in fig. 10, the straight basic rail head 1114-6 mm is planed, the thickness of the straight-line-section rail head 2111 of the curved-point rail is increased by 4-6 mm, and the wheel rail contact position is 16mm downward from the highest point of the straight basic rail head 111. .
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A railway turnout switch, comprising: comprising a stock rail (1) and a point rail (2), the point rail (2) being arranged inside the stock rail (1); the stock rail (1) comprises a straight stock rail (11) and a curved stock rail (12), the point rail (2) comprises a curved point rail (21) and a straight point rail (22), the straight stock rail (11) and the curved point rail (21) are on the same side, and the curved stock rail (12) and the straight point rail (22) are on the same side; the curve point rail (21) comprises a curved point rail straight line segment (211) and a guide curve (212), the curved point rail straight line segment (211) is longitudinally connected with the guide curve (212), the curved point rail straight line segment (211) and the guide curve (212) are integrated, the curved point rail straight line segment (211) is a straight line type, the guide curve (212) is an arc line type, the curved point rail straight line segment (211) is the front end of the curve point rail (21), and in the size of a turnout linear frame, the length of the curved point rail straight line segment (211) is the theoretical maximum value.
2. A railway turnout switch according to claim 1, wherein: the straight stock rail (11) comprises a straight stock rail head (111) and a straight stock rail base (112), and the straight stock rail head (111) is arranged at the upper end of the straight stock rail base (112); the bent point rail straight-line section (211) comprises a bent point rail straight-line section railhead (2111) and a bent point rail straight-line section railbase (2112), the bent point rail straight-line section railhead (2111) is arranged at the upper end of the bent point rail straight-line section railbase (2112), and the straight basic railhead (111) is in contact with the bent point rail straight-line section railhead (2111).
3. A railway turnout switch according to claim 1, wherein: the curved stock rail (12) comprises a curved stock rail head (121) and a curved stock rail bottom (122), and the curved stock rail head (121) is arranged at the upper end of the curved stock rail bottom (122); the straight point rail (22) comprises a straight point rail head (221) and a straight point rail bottom (222), and the straight point rail head (221) is arranged at the upper end of the straight point rail bottom (222).
4. A railway turnout switch according to claim 1, wherein: the guide curve (212) comprises a guide curve rail bottom (2121) and a guide curve rail head (2122), the upper end of the guide curve rail bottom (2121) is provided with the guide curve rail head (2122), the guide curve rail head (2122) is arranged at the top end of the guide curve rail bottom (2121), the guide curve rail bottom (2121) comprises a guide curve rail bottom body (21211) and a guide curve bottom planing and cutting section (21212), the length of the guide curve bottom planing and cutting section (21212) is smaller than that of the guide curve rail bottom body (21211), and the guide curve bottom planing and cutting section (21212) is arranged at the inner side of the root end of the guide curve rail bottom body (21211).
5. A railway turnout switch according to claim 2, wherein: and planing and cutting the rail head (111) of the straight stock rail for 4-6 mm, increasing the thickness of the rail head (2111) of the straight-line section of the curved switch rail for 4-6 mm, and setting the position of the contact surface to be 16mm downward from the highest point of the rail head (111) of the straight stock rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010163692.7A CN111254757A (en) | 2020-03-10 | 2020-03-10 | Railway turnout switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010163692.7A CN111254757A (en) | 2020-03-10 | 2020-03-10 | Railway turnout switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111254757A true CN111254757A (en) | 2020-06-09 |
Family
ID=70953075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010163692.7A Pending CN111254757A (en) | 2020-03-10 | 2020-03-10 | Railway turnout switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111254757A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162208A (en) * | 2011-01-21 | 2011-08-24 | 王平 | High-strength turnout switch |
| KR200456918Y1 (en) * | 2011-01-26 | 2011-11-28 | 주식회사베스트엔지니어링 | Rail Siliding Auxiliary Equipment at Railroad Switch Plate |
| CN203602971U (en) * | 2013-11-21 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Semi-linear type split switch |
| CN103757996B (en) * | 2014-02-10 | 2016-04-13 | 中铁山桥集团有限公司 | A kind of method for designing of track switch side direction switch rail plane linetype |
| CN107237221A (en) * | 2017-07-31 | 2017-10-10 | 西南交通大学 | Bent tongue, railway switch and track switch |
| CN110106746A (en) * | 2019-04-22 | 2019-08-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Counter-rail apparatus and rail system with it |
-
2020
- 2020-03-10 CN CN202010163692.7A patent/CN111254757A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162208A (en) * | 2011-01-21 | 2011-08-24 | 王平 | High-strength turnout switch |
| KR200456918Y1 (en) * | 2011-01-26 | 2011-11-28 | 주식회사베스트엔지니어링 | Rail Siliding Auxiliary Equipment at Railroad Switch Plate |
| CN203602971U (en) * | 2013-11-21 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Semi-linear type split switch |
| CN103757996B (en) * | 2014-02-10 | 2016-04-13 | 中铁山桥集团有限公司 | A kind of method for designing of track switch side direction switch rail plane linetype |
| CN107237221A (en) * | 2017-07-31 | 2017-10-10 | 西南交通大学 | Bent tongue, railway switch and track switch |
| CN110106746A (en) * | 2019-04-22 | 2019-08-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Counter-rail apparatus and rail system with it |
Non-Patent Citations (1)
| Title |
|---|
| 曾瑞东等: "跟端轨底刨切对尖轨转换影响的有限元分析", 《铁道建筑》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200609 |
|
| RJ01 | Rejection of invention patent application after publication |