CN216237909U - Single switch lateral guard rail - Google Patents
Single switch lateral guard rail Download PDFInfo
- Publication number
- CN216237909U CN216237909U CN202120745466.XU CN202120745466U CN216237909U CN 216237909 U CN216237909 U CN 216237909U CN 202120745466 U CN202120745466 U CN 202120745466U CN 216237909 U CN216237909 U CN 216237909U
- Authority
- CN
- China
- Prior art keywords
- guard rail
- section
- rail
- lateral
- buffer
- Prior art date
- 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.)
- Active
Links
- 238000005452 bending Methods 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model provides a single turnout lateral guard rail, which comprises a lateral guard rail (1) and a curved basic rail (2), wherein the lateral guard rail (1) is longitudinally arranged on one side of the curved basic rail (2), the lateral guard rail (1) is a bent guard rail, the bending point is 1200-1300 mm away from the front end of the guard rail, the bending angle is 0.15-0.20 degrees, the central line of the lateral guard rail (1) is the same as the corresponding longitudinal position line of the curved basic rail (2), and the length of the lateral guard rail (1) is more than or equal to 5000 mm; the curved stock rail (2) comprises a first arc line section (21), a straight line gauge transition section (22), a second arc line section (23) and a straight line section (24) which are sequentially connected end to end, and the lateral guard rail (1) is arranged at the corresponding position of the second arc line section (23) and the straight line section (24). The utility model can obviously increase the length of the guard rail, simultaneously avoid the condition of track gauge widening in the guard rail area, reduce the difficulty of on-site maintenance and repair, simultaneously avoid the risk of the wheels impacting the opening section of the guard rail and ensure the driving safety.
Description
Technical Field
The utility model relates to the field of rails, in particular to a lateral guard rail of a single turnout.
Background
At present, the single turnout types with more main line applications in urban rail transit engineering in China mainly comprise three types, namely a 50kg/m steel rail No. 9 single turnout, a 60kg/m steel rail No. 9 single turnout and a 60kg/m steel rail No. 12 single turnout, and among the three turnout types, the 60kg/m steel rail No. 9 single turnout is most commonly applied.
Switches can be classified into linear and curved point switches according to the type of point. The straight point switch is technically characterized by that its point is relatively short, two points can be symmetrically made, its heel end is a movable joint, and its pulling is flexible, its stability is slightly poor, and it has need of configuring a point switch, and its side direction allowable speed is generally 30 km/h. The technical characteristics of the curved point switch are that the point is longer, two points are not symmetrically manufactured, the heel end is connected by a joint splint, the stability is good, two or more point switches are required to be configured, and the lateral allowable passing speed is generally 35 km/h. No. 9 linear switch rails and curved switch rails of 60kg/m steel rails are widely applied to urban rail transit engineering in China, and the technology is mature and reliable.
The existing No. 9 single turnout lateral guard rail of the 60kg/m steel rail is short in length, the attack angle of the guard rail buffer section is large, the impact effect is obvious when a vehicle passes through a frog zone, and the running stability of the vehicle and the service life of the guard rail and related components are unfavorable.
There is a need for a single switch lateral guardrail that solves the above problems.
Disclosure of Invention
The utility model provides a single-opening turnout lateral guard rail, aiming at solving the problems that the existing No. 9 single-opening turnout lateral guard rail of a 60kg/m steel rail is short in length, the attack angle of a guard rail buffer section is large, the impact effect is obvious when a vehicle passes through a frog zone, and the problems are unfavorable for the running stability of the vehicle and the service life of the guard rail and related parts.
The utility model provides a single turnout lateral guard rail which comprises a lateral guard rail and a curved stock rail, wherein the lateral guard rail is longitudinally arranged on one side of the curved stock rail and is a bent guard rail, the bending point is 1200-1300 mm away from the front end of the guard rail, the bending angle is 0.15-0.20 degrees, and the central line of the lateral guard rail is the same as the corresponding longitudinal position line of the curved stock rail; the curved stock rail comprises a first arc line section, a linear gauge transition section, a second arc line section and a straight line section which are sequentially connected end to end, and the lateral guard rail is arranged at the corresponding position of the second arc line section and the straight line section; the lateral guard rail comprises a lateral guard rail body and a lateral guard rail working edge, and the lateral guard rail working edge is arranged on one longitudinal side of the lateral guard rail and corresponds to the curved stock rail working edge; the side direction guardrail working edge is for digging the side cut for protecting the rail based on the type of buckling, and side direction guardrail working edge includes first opening section, first buffer section, straight section, second buffer section and second opening section, and first opening section, first buffer section, straight section, second buffer section and second opening section connect gradually, and first opening section, first buffer section, straight section, second buffer section and second opening section are the straightway.
To better provide protection for the frog area while reducing the impact of the wheel on the guard rail buffer segment, it is desirable to increase the length of the guard rail, increasing the length of the guard rail buffer segment. The length of the guard rail is increased from 3800mm to over 5000 mm.
As an optimal mode, the first arc line segment is a 1445mm arc line, and the radius of the first arc line segment is 194272.5 mm; the second arc line segment is 1435mm arc line, and the second arc line segment radius is 194282.5 mm.
As an optimal mode, the length of the linear gauge transition section is more than or equal to 2500 mm.
The guard rail length can not simply increase, can bring a series of problems after guard rail length increases, needs to solve and optimal design correspondingly. Firstly, after the length of the guard rail is increased, the curve basic rail line type needs to be correspondingly adjusted to ensure that the curve track gauge widening section is finished before entering the guard rail area, namely, the guard rail area is ensured to be the standard track gauge. If the gauge of the guard rail area is widened, correspondingly, the guard rail opening section and the buffer section wheel edge groove also need to be correspondingly widened, but in the field maintenance process, the guard rail opening section and the buffer section wheel edge groove are generally controlled according to the existing fixed value. Therefore, the risk that the train wheels impact the end part of the guard rail is caused, and the driving safety is influenced. Therefore, the guard rail region should not have a track width widening.
After increasing side direction guardrail length, optimize 60kg/m rail 9 # single turnout curve stock rail line type simultaneously, in the region that closes on the guardrail, set up the straight line transition section that is not less than 2500mm, pass over the 1435mm gauge of 1445mm gauge in advance back to standard, like this, the curve of leading curve and frog district curve stock rail line type is: the track gauge is 1445mm circular arc line (radius 194272.5mm) + straight line track gauge transition section (length is more than or equal to 2500mm) + 1435mm circular arc line (radius 194282.5mm) + straight line.
As an optimal mode, the control values of the rim grooves of the first opening section and the second opening section are 80 mm; the control value of the rim grooves of the first buffer section and the second buffer section is 65 mm; the control value of the straight section wheel edge groove is 42 mm.
As a preferred mode, the length of the first opening section and the length of the second opening section are 150 mm; the length of the first buffer section is 2100 mm-2400 mm; the length of the second buffer section is 1500 mm-1800 mm; the length of the straight section is 1200 mm.
Generally, the guard rail is the linear type, and switch side direction guard rail length increases the back, and its and curved stock rail's matching relation will worsen, will grow gradually at the anterior segment of guard rail and curved stock rail's opening volume, mainly brings following problem: the guard rail backing plate with uniform model and size can not be applied to the front section of the guard rail, and needs to be designed separately, thereby increasing the difficulty of manufacturing and field maintenance of a processing plant and increasing the types and the quantity of spare parts.
Based on the problem, after the length of the guard rail is increased, the guard rail is designed into a bending type guard rail, the bending point is 1200 mm-1300 mm away from the front end of the guard rail, the bending angle is 0.15-0.20 degrees, the central line of the guard rail is basically consistent with the line type of the curved stock rail, the guard rail base plate with the uniform type can be normally used, and the type of the guard rail base plate is not additionally increased. In addition, the guard rail after buckling will cause guard rail working edge break points to increase, increase the maintenance degree of difficulty, consequently, carry out the slicing on working edge again after the guard rail buckles, ensure that working edge still comprises five sections straight lines: the control values of the rim grooves of the opening section (150mm), the buffer section (2100 mm-2400 mm), the flat section (1200mm), the buffer section (1500 mm-1800 mm) and the opening section (150mm) are ensured to be unchanged (80 mm, 65mm and 42mm respectively).
When a vehicle passes through the frog region, the wheels may collide with the guard rail, causing the wheels to change direction of travel, which affects the dynamic performance of the vehicle.
If the angle of attack of the guard rail buffer section is a, the speed of the wheel before the wheel is impacted with the guard rail is v, the speed direction after the impact is changed, the speed is reduced to vcosa by v, and the kinetic energy loss during the impact is as follows:
w＝v2sin2a
the greater the kinetic energy loss w, the poorer the dynamic performance of the vehicle when passing through the frog, the shorter the service life of the guard rail and the related components, and the greater the maintenance and repair workload.
The kinetic energy loss w and the attack angle a of the guard rail buffering section have a corresponding relation, and the larger the attack angle of the buffering section is, the larger the kinetic energy loss is.
The utility model can obviously increase the length of the lateral guard rail and the length of the buffer section, further can effectively reduce the attack angle of the guard rail buffer section (the attack angle is reduced from 1.10 degrees to 0.55 degrees), further effectively reduces the kinetic energy loss of the wheel impacting the guard rail (the kinetic energy loss is reduced from 0.45km2/h2 to 0.11km2/h2), improves the power performance of the vehicle when passing through the frog, can obviously prolong the service life of the guard rail and related components, and reduces the corresponding maintenance workload.
The utility model has the following beneficial effects:
(1) the length of the lateral guard rail is obviously increased, the attack angle of the buffer section of the guard rail can be reduced (the attack angle is reduced from 1.10 degrees to 0.55 degrees), the dynamic performance of a vehicle passing through the frog is improved, the service life of the guard rail and related parts can be obviously prolonged, and the corresponding maintenance workload is reduced.
(2) When showing increase guardrail length, avoided the regional condition that has the gauge to widen of guardrail, reduced the on-the-spot maintenance degree of difficulty, can avoid the risk of wheel striking guardrail opening section simultaneously, ensure driving safety.
(3) The guard rail base plate with the uniform model can be adopted while the length of the guard rail is obviously increased, the existing maintenance standard is adopted, and the difficulty in manufacturing, maintenance and repair is reduced.
Drawings
FIG. 1 is a schematic view of a side guard rail of a single turnout;
FIG. 2 is a schematic view of a single turnout lateral guard rail curved stock rail;
FIG. 3 is a schematic view of a side guard rail of a single turnout;
fig. 4 is a schematic view of the working edge of the lateral guard rail of the single turnout.
Reference numerals:
1. a lateral guard rail; 11. a lateral guard rail body; 12. a lateral guard rail working edge; 121. a first open section; 122. a first buffer section; 123. a straight section; 124. a second buffer section; 125. a second open section; 2. a curved stock rail; 21. a first arc segment; 22. a linear gauge transition section; 23. a second arc segment; 24. a straight line segment.
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 figure 1, the single turnout lateral guard rail comprises a lateral guard rail 1 and a curved stock rail 2, wherein the lateral guard rail 1 is longitudinally arranged on one side of the curved stock rail 2, the lateral guard rail 1 is a bent guard rail, the bending point is 1200 mm-1300 mm away from the front end of the guard rail, the bending angle is 0.15-0.20 degrees, the central line of the lateral guard rail 1 is the same as the corresponding longitudinal position line of the curved stock rail 2, and the length of the lateral guard rail 1 is more than or equal to 5000 mm.
As shown in fig. 2, the curved stock rail 2 includes a first arc segment 21, a straight-line gauge transition segment 22, a second arc segment 23 and a straight segment 24 which are connected end to end in sequence, and the lateral guard rail 1 is disposed at a position corresponding to the second arc segment 23 and the straight segment 24. The first arc line segment 21 is a 1445mm arc line, and the radius of the first arc line segment 21 is 194272.5 mm; the second arc segment 23 is a 1435mm arc, and the radius of the second arc segment 23 is 194282.5 mm. The length of the linear track gauge transition section 22 is more than or equal to 2500 mm.
As shown in FIG. 3, the side guard rail 1 comprises a side guard rail body 11 and a side guard rail working edge 12, wherein the side guard rail working edge 12 is arranged at one longitudinal side of the side guard rail 1 and is arranged corresponding to the working edge of the curved stock rail 2
As shown in fig. 4, the lateral guard rail working edge 12 is a bent guard rail planing edge, the lateral guard rail working edge 12 includes a first opening section 121, a first buffer section 122, a straight section 123, a second buffer section 124 and a second opening section 125, the first opening section 121, the first buffer section 122, the straight section 123, the second buffer section 124 and the second opening section 125 are sequentially connected, and the first opening section 121, the first buffer section 122, the straight section 123, the second buffer section 124 and the second opening section 125 are straight line sections. The control value of the rim groove of the first opening section 121 and the second opening section 125 is 80 mm; the control value of the rim grooves of the first buffer section 122 and the second buffer section 124 is 65 mm; the control value of the rim groove of the straight section 123 is 42 mm. The first opening section 121 and the second opening section 125 are 150mm in length; the length of the first buffer section 122 is 2100 mm-2400 mm; the length of the second buffer section 124 is 1500 mm-1800 mm; the straight section 123 is 1200mm in length.
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 equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a singly open switch side direction guardrail which characterized in that: the bending type side guard rail comprises a side guard rail (1) and a curved stock rail (2), wherein the side guard rail (1) is longitudinally arranged on one side of the curved stock rail (2), the side guard rail (1) is a bending type guard rail, the bending point is 1200-1300 mm away from the front end of the guard rail, the bending angle is 0.15-0.20 degrees, and the central line of the side guard rail (1) is the same as the corresponding longitudinal position line type of the curved stock rail (2); the curved stock rail (2) comprises a first arc line section (21), a straight line gauge transition section (22), a second arc line section (23) and a straight line section (24) which are sequentially connected end to end, and the lateral guard rail (1) is arranged at the corresponding position of the second arc line section (23) and the straight line section (24); the lateral guard rail (1) comprises a lateral guard rail body (11) and a lateral guard rail working edge (12), and the lateral guard rail working edge (12) is arranged on one longitudinal side of the lateral guard rail (1) and corresponds to the working edge of the curved stock rail (2); side direction guardrail work limit (12) are for being based on bending type guardrail digs the side cut, side direction guardrail work limit (12) include first opening section (121), first buffer segment (122), straight section (123), second buffer segment (124) and second opening section (125), first opening section (121) first buffer segment (122) straight section (123) second buffer segment (124) with second opening section (125) connect gradually, first opening section (121) first buffer segment (122) straight section (123) second buffer segment (124) with second opening section (125) are the straightway.
2. The single switch lateral guardrail of claim 1, wherein: the first arc line segment (21) is a 1445mm arc line, and the radius of the first arc line segment (21) is 194272.5 mm; the second arc line segment (23) is a 1435mm arc line, and the radius of the second arc line segment (23) is 194282.5 mm.
3. The single switch lateral guardrail of claim 2, wherein: the length of the linear track gauge transition section (22) is more than or equal to 2500 mm.
4. The single switch lateral guardrail of claim 1, wherein: the rim groove control value of the first opening section (121) and the second opening section (125) is 80 mm; the rim groove control value of the first buffer section (122) and the second buffer section (124) is 65 mm; the control value of the rim groove of the straight section (123) is 42 mm.
5. The single switch lateral guardrail of claim 4, wherein: the first opening section (121) and the second opening section (125) are 150mm in length; the length of the first buffer section (122) is 2100 mm-2400 mm; the length of the second buffer section (124) is 1500 mm-1800 mm; the length of the straight section (123) is 1200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120745466.XU CN216237909U (en) | 2021-04-13 | 2021-04-13 | Single switch lateral guard rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120745466.XU CN216237909U (en) | 2021-04-13 | 2021-04-13 | Single switch lateral guard rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216237909U true CN216237909U (en) | 2022-04-08 |
Family
ID=80939405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120745466.XU Active CN216237909U (en) | 2021-04-13 | 2021-04-13 | Single switch lateral guard rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216237909U (en) |
-
2021
- 2021-04-13 CN CN202120745466.XU patent/CN216237909U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112941977B (en) | Single-opening turnout lateral guard rail | |
| CN201330353Y (en) | Narrow gage cross-over switch device | |
| EP4053335A1 (en) | 1676 mm and 1000 mm dual-gauge mixed gauge turnout | |
| CN216237909U (en) | Single switch lateral guard rail | |
| CN109440548A (en) | Double crossover track switch suitable for tramcar and railcar tune-up shop | |
| CN2863858Y (en) | 43 kg/m rail switch point point-hiding switcher | |
| CN210134294U (en) | Switch structure of track line turnout area | |
| CN217601098U (en) | Single-opening turnout embedded wing rail type alloy steel combined frog | |
| CN104775335B (en) | A kind of guard rail | |
| CN103757996B (en) | A kind of method for designing of track switch side direction switch rail plane linetype | |
| CN116187030A (en) | Method for optimizing turnout structure and improving performance of passenger-cargo collinear railway | |
| CN203602971U (en) | Semi-linear type split switch | |
| US9453307B2 (en) | Rail switch having a main track and a branch track | |
| CN111254757A (en) | Railway turnout switch | |
| CN212505638U (en) | Railway turnout switch | |
| CN113263865B (en) | Wheel structure and rail grinding wagon | |
| CN201330354Y (en) | Narrow gage single-opened switch device | |
| CN114000381B (en) | Single-switch inlaid wing rail type alloy steel combined frog | |
| CN220665821U (en) | 1676mm gauge 8.5 single turnout | |
| CN1472391A (en) | Integral optimization for switch parts | |
| CN212000396U (en) | New Zealand steel rail and track gauge No. 7.5 compound intersection | |
| CN209602878U (en) | Simple turnout suitable for tramcar and railcar tune-up shop | |
| CN216404930U (en) | No. 7 single-open shoulder turnout of 60kg/m steel rail | |
| CN219032784U (en) | Novel elastic bendable switch rail | |
| CN217733617U (en) | No. 9 single-open switch wing rail strenghthened type alloy steel combination frog |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |