CN208815354U - A kind of 400 kilometers of movable-point crossing wing rails of speed per hour - Google Patents
A kind of 400 kilometers of movable-point crossing wing rails of speed per hour Download PDFInfo
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- CN208815354U CN208815354U CN201821066233.1U CN201821066233U CN208815354U CN 208815354 U CN208815354 U CN 208815354U CN 201821066233 U CN201821066233 U CN 201821066233U CN 208815354 U CN208815354 U CN 208815354U
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Abstract
A kind of 400 kilometers of movable-point crossing wing rails of speed per hour, the wing rail rail top edge line direction is the first inclined-plane being gradually lifted to heart rail rail top 20mm section part from the practical throat of railway frog, to heart rail rail top 30mm section part it is the second inclined-plane being gradually lifted from the 20mm section part of heart rail rail top, is the third inclined-plane gradually decreased to heart rail rail top 50mm section part from the 30mm section part of heart rail rail top along line direction；The wing rail rail roof pendant straight line path direction is the 4th inclined-plane that inside is low, outside is high to heart rail rail top 50mm section part from the practical throat of railway frog.The utility model is by reducing the vertical irregularity in railway frog area and wheel-rail impact power, reducing railway frog area off-load rate and derailment coefficients to wing rail rail roof construction innovative design, the comfort that the security reliability and passenger for improving track switch are taken.
Description
Technical field
The utility model belongs to railway switch technical field, and in particular to a kind of 400 kilometers of movable-point crossing wings of speed per hour
Rail.
Background technique
Currently, movable-point crossing wing rail and the working edge gauge line of heart rail are continuous, heart rail can be engaged in converting system by electricity
System pulls conversion, realize the straight stock of track switch, side stock it is open-minded, eliminate stationarity railway frog harmful sky because caused by interrupting gauge line
Between, trouble is crossed for train high speed, and operation condition is provided.But in railway frog area, one tyre tread of vehicle wheel pair operates in guide rail rail top, and one
Tyre tread operates in wing rail or the rail top mutually closely connected with heart rail, in order to allow train wheel load gradually to transit to heart rail rail from wing rail
Certain rail top decreasing value is arranged in top, light section section of the heart rail at its tip~carry completely, so as to wheel tread gradually from
Wing rail, which is transferred to heart rail, has sufficient intensity deposit compared with big cross section, avoid the heart rail light section rail top due to directly bearing train wheel load by
Conquassation causes Exploration on Train Operation Safety.
The heart rail of existing movable-point crossing generally undertakes the load of train since 20mm section, in heart rail 40mm or
It is carried completely when 50mm section, only when rail top when section sufficiently large (40mm or 50mm section), heart rail rail heights of roofs just reaches
Highest can undertake the load of train completely.Heart rail rail withstands on the mesh that light section section setting decreasing value plays protection itself
, but because of the decreasing value on heart rail rail top, during wheel is transferred to heart rail rail top from wing rail, Railway wheelset is in heart rail side
Wheel tread it is hanging, cause wheel tread and shock that heart rail rail top reels, main cause be assembled with heart rail it is closely connected
Wing rail be relatively distant from wheel rim.Increase it follows that heart rail carries pervious light section completely because rail top is equipped with decreasing value
The big change rate of railway frog part vertical structure irregularity, wheel-rail impact effect is more violent, shortens heart rail, wing rail service life,
Increase railway frog area vertical impact power, off-load rate and derailment coefficients.
Existing movable-point crossing has the section of decreasing value not take to slow down the measure of wheel-rail impact power on heart rail rail top, i.e.,
When centripetal from the wing rail rail transition of wheel load, only local tyre tread operates in wing rail rail top to the wheel of heart trackside, relies primarily on the another of wheel pair
One wheel ran trouble on guide rail.Wheel tread is the inclined-plane for having certain taper, and its tyre tread gradient is got over further away from wheel rim
Greatly, it follows that having a section of decreasing value on heart rail rail top, wheel tread rail brace in order to obtain, hanging wheel will
It rotates and declines around axle, so that tyre tread is supported by wing rail, but thus cause wheel tread to be answered back to heart rail rail and hit, increase rut
Pitch the impact force and vertical irregularity of area's wheel track, off-load rate and derailment coefficients when train switch crossing speed is lower, under percussion
It can satisfy index request, the comfort that safety hazard and passenger will not be caused to take.
When train directly reaches 400km/h to highest switch crossing speed, by 400 kilometers of 1520mm gauge P65 steel of speed per hour
No. 25 track switches of rail have carried out vehicle-railway points system dynamic response theory analysis, and calculated result see the table below:
400 kilometers of the speed per hour track switch coupled system dynamic response calculated result of 1520mm gauge P65 rail 25
Although by upper table calculated result it is found that the movable-point crossing routinely designed its derailment coefficients, rate of wheel load reduction,
Body oscillating acceleration etc. meets safety index requirement, but railway frog head of district's heart rail vertical wheel rail force is larger, increases railway frog area wheel track
Impact force, it is necessary to take measures, to reduce the wheel-rail impact power of movable-point crossing.
The high-speed switch of 400 kilometers of grades of speed per hour is a blank in the world at present, needs to go deep into railway points system
Research, breaks traditional design theory, is attached most importance in the wheel rail relation design at railway frog position with eliminating vertical structure irregularity, is mentioned
High track switch integral level.
Summary of the invention
The purpose of this utility model is to provide a kind of 400 kilometers of movable-point crossing wing rails of speed per hour, by wing rail rail
Roof construction innovative design reduces the vertical irregularity in railway frog area and wheel-rail impact power, reduces railway frog area off-load rate and derailment coefficients, mention
The comfort that the security reliability of high track switch and passenger take.
The mentality of designing of the utility model: movable-point crossing is to guarantee that train wheel load is gradually transferred to heart rail from wing rail,
In heart rail rail top light section region there are certain decreasing value so that the change rate of railway frog area vertical structure irregularity compared with
Greatly, wheel-rail impact effect is more violent.There is wheel existing for the light section section of decreasing value on heart rail rail top for movable-point crossing
The mutual Impact Problems of rail are engaged relationship according to wheel tread and rail, will have decreasing value section to assemble with heart rail rail top
Wing rail rail top is lifted and is designed as inclined-plane, to ensure train by obtaining wing rail rail top on the outside of taper wheel tread when railway frog area
Support avoids wheel inside (being close to central lines of track) tyre tread from answering back to heart rail rail and hits, to slow down the vertical injustice in railway frog area
It is suitable, comfortable seating environment is provided for passenger.
Heart rail is usually carried since 20mm section, is carried completely in 40mm section or 50mm section, complete loaded section
It is that decreasing value terminates section.Wheel rail relation when wing rail rail of the present invention top bevel structure is assembly closely connected with heart rail by simulation wing rail
Design, i.e., under wing rail and heart rail close-fitting state, by wheel inside tyre tread respectively with the practical tip section of heart rail, 20mm section,
When the highest point contact of 30mm section, 40mm section or 50mm section, i.e., when tyre tread and heart rail rail top highest point are point contact, the wing
Rail gives the support of a length of 10mm of lateral wheel tyre tread respectively to design.
The technical solution of the utility model: usual wheel tread is the inclined-plane for having certain taper, with connecing for rail
Touching is an oval spot, and long axis about 10mm, i.e. rail top of steel rail provide the face support of length about 10mm for tyre tread.In order to slow down railway frog
Wheel-rail impact power, the wing rail rail roof construction with the closely connected assembly of heart rail decreasing value section is by wheel tread and heart rail highest point contact
When, wing rail rail top provides the Wheel Rail Contact spot design that length is 10mm support for wheel tread.In addition, because wheel tread is oblique
Face, so the wing rail rail top contacted with wheel tread also must be designed to the inclined-plane of identical taper.
The specific structure scheme of wing rail described in the utility model are as follows: the wing rail rail top edge line direction is from the practical pharynx of railway frog
Being risen at larynx to heart rail rail top 20mm section part is the first inclined-plane being gradually lifted, and wing rail rail withstands on the lift of the practical throat of railway frog
Appreciating is 0.0mm, and on heart rail rail top, the lifting value of 20mm section part is 0.5-1.2mm；The wing rail rail top edge line direction from
It is the second inclined-plane being gradually lifted that heart rail rail top 20mm section part, which rises to heart rail rail top 30mm section part, and wing rail rail withstands on heart rail
The lifting value of rail top 30mm section part is 1.8-2.5mm；The wing rail rail top edge line direction is from heart rail rail top 30mm section part
Rising to heart rail rail top 50mm section part is the third inclined-plane gradually decreased, and wing rail rail withstands on the lift of heart rail rail top 50mm section part
Appreciating is 0.0mm；The wing rail rail roof pendant straight line path direction is to heart rail rail top 50mm section part from the practical throat of railway frog
The 4th inclined-plane that inside is low, outside is high, and the 4th inclined-plane taper is consistent with the taper on the outside of wheel tread, makes wing rail rail top vehicle
Wheel tread at least provides the support of length 10mm.
It advanced optimizes, the lifting value that the wing rail rail withstands on heart rail rail top 20mm section part is 0.7mm；The wing rail
The lifting value that rail withstands on heart rail rail top 30mm section part is 2.2mm.
The utility model has the advantage that and effect:
1, the vertical irregularity in railway frog area and wheel-rail impact power are reduced.
2, reduce railway frog area off-load rate and derailment coefficients.
3, the comfort that the security reliability and passenger for improving track switch are taken.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model,
Fig. 2 is Fig. 1 partial enlargement diagram,
Fig. 3 is the inclined-plane Fig. 2 position wing rail sectional schematic diagram,
Fig. 4 is the utility model wheel rail relation schematic diagram.
Description of symbols:
1, the first inclined-plane 2, the second inclined-plane
3, third inclined-plane 4, the 4th inclined-plane
5, the practical throat 6 of corresponding railway frog, corresponding heart rail 20mm section
7, corresponding heart rail 30mm section 8, corresponding heart rail 50mm section
9, lateral wheel tyre tread is by tyre tread and heart rail rail top contact on the inside of wing rail rail top support 10, wheel
11, wing rail 12, long heart rail
13, wheel 14, rail are high
Specific embodiment
1,2,3,4 an embodiment of the present invention is described with reference to the accompanying drawing.
A kind of No. 25 simple turnout movable-point crossing wing rails of 400 kilometers of 1520mm gauge P65 rail of speed per hour, the wing rail
Rail top edge line direction is the first inclined-plane being gradually lifted to heart rail rail top 20mm section part from the practical throat of railway frog, and the wing
The lifting value that rail rail withstands on the practical throat of railway frog is 0.0mm, and on heart rail rail top, the lifting value of 20mm section part is 0.7mm；Institute
It is be gradually lifted to heart rail rail top 30mm section part that wing rail rail top edge line direction, which is stated, from the 20mm section part of heart rail rail top
Two inclined-planes, and it is 2.2mm that wing rail rail, which withstands on the lifting value of heart rail rail top 30mm section part,；The wing rail rail top edge line direction from
It is the third inclined-plane gradually decreased that heart rail rail top 30mm section part, which rises to heart rail rail top 50mm section part, and wing rail rail withstands on heart rail
The lifting value of rail top 50mm section part is 0.0mm；The wing rail rail roof pendant straight line path direction is from the practical throat of railway frog to the heart
Rail rail top 50mm section part is inside is low, outside is high the 4th inclined-plane, and the taper on the outside of the 4th inclined-plane taper and wheel tread
Unanimously, wing rail rail top wheel tread is made at least to provide the support of length 10mm.
The processing method of the wing rail is: first by CNC milling machine to the wing rail from toe-end to the practical throat of railway frog
Locate the rail top of section by Milling Process, reduce the section wing rail height by 1.8-2.5mm, then to the wing rail from railway frog
Practical throat rises to the rail top of heart rail rail top 50mm section part and carries out Milling Process, formed first inclined-plane, the second inclined-plane,
Third inclined-plane；Milling Process finally is carried out to the wing rail rail top at the first inclined-plane, the second inclined-plane and third inclined-plane again, makes wing rail rail
Withstand at the first inclined-plane, the second inclined-plane and third inclined-plane and form that inside is low, the 4th inclined-plane that outside is high, and the 4th inclined-plane taper with
Taper on the outside of wheel tread is consistent.
The utility model heart rail rail top cross dimensions is shown in Fig. 2 shown in A.The utility model is not changing the existing wing
Under the premise of path type, by passing through Milling Process to the rail top of the practical throat section of railway frog from toe-end to the wing rail,
It reduces the section wing rail height by 2.2mm, keeps the wing rail from the practical throat of railway frog to heart rail rail top 50mm section part
Only the wing rail height of section is constant, to create to form first inclined-plane, the second inclined-plane, third inclined-plane by Milling Process
Condition, not only manufacturing cost is low, and can guarantee the contact precision at Wheel Rail Contact position.Need to only it increase when online use described
The railway rail pad thickness of wing rail can compensate for wing rail height decreasing value, easy to install and use.
The utility model in wing rail and rail top by there is closely connected section of rail top of heart rail of decreasing value that bevel structure is arranged, by the long heart
Rail wheel load crossover position is delayed, and is reduced impact of the wheel load to long heart rail, is slowed down railway frog vertical structure irregularity, can
Heart rail is offset because of the vertical irregularity of railway frog caused by reducing, it is ensured that wheel tread does not carry pervious small disconnected completely in heart rail
Face region can be supported by wing rail rail top bevel structure always, to slow down the vertical irregularity in railway frog area, reduce wheel track
Impact force reduces railway frog area rate of wheel load reduction and derailment coefficients, improves the security reliability of track switch, provides comfortably for passenger
Take environment.
To the rail top difference of speed per hour No. 25 simple turnout movable-point crossing wing rails of 400 kilometers of 1520mm gauge P65 rail
Railway frog area vehicle-railway points system dynamic response theoretical calculation is carried out by the two schemes for taking no action to, being arranged inclined-plane, calculates knot
Fruit see the table below:
400 kilometers of the speed per hour track switch coupled system dynamic response calculated result of 1520mm gauge P65 rail 25
By upper table calculated result it is found that behind the setting inclined-plane of wing rail rail top, the straight stock of long heart rail, the side stock of movable-point crossing hang down
Have dropped 10.03%, 11.5% respectively to power, straight stock, side stock derailment coefficients have dropped 11.1%, 9.1% respectively, straight stock, side
Stock rate of wheel load reduction has dropped 14.5%, 17.8% respectively, and body oscillating vertical acceleration has dropped 25%, 5.7% respectively,
Body oscillating transverse acceleration has dropped 2.7%, 12.8% respectively.It follows that the wing rail rail top to movable-point crossing is set
After setting inclined-plane, railway frog area wheel-rail impact power can significantly reduce, improve traffic safety reliability.
Above-described embodiment, the only preferred embodiment of the utility model not are used to limit the implementation model of the utility model
It encloses, therefore all equivalent variationss done with content described in the utility model claims, the utility model right should all be included in and wanted
Within the scope of asking.
Claims (2)
1. a kind of 400 kilometers of movable-point crossing wing rails of speed per hour, it is characterized in that: the wing rail rail top edge line direction is real from railway frog
It is the first inclined-plane being gradually lifted that border throat, which rises to heart rail rail top 20mm section part, and wing rail rail withstands on the practical throat of railway frog
Lifting value be 0.0mm, on the heart rail rail top lifting value of 20mm section part be 0.5-1.2mm；The wing rail rail top edge route side
It is the second inclined-plane being gradually lifted that Xiang Congxin rail rail top 20mm section part, which rises to heart rail rail top 30mm section part, and wing rail rail is withstood on
The lifting value of heart rail rail top 30mm section part is 1.8-2.5mm；The wing rail rail top edge line direction is disconnected from heart rail rail top 30mm
Being risen at face to heart rail rail top 50mm section part is the third inclined-plane gradually decreased, and wing rail rail withstands on heart rail rail top 50mm section part
Lifting value be 0.0mm；The wing rail rail roof pendant straight line path direction is from the practical throat of railway frog to heart rail rail top 50mm section
Place is the 4th inclined-plane that inside is low, outside is high, and the 4th inclined-plane taper is consistent with the taper on the outside of wheel tread, makes wing rail rail top
The support of length 10mm is at least provided for wheel tread.
2. 400 kilometers of movable-point crossing wing rails of a kind of speed per hour according to claim 1, it is characterized in that: the wing rail rail
The lifting value for withstanding on heart rail rail top 20mm section part is 0.7mm；The wing rail rail withstands on the lifting of heart rail rail top 30mm section part
Value is 2.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066233.1U CN208815354U (en) | 2018-07-06 | 2018-07-06 | A kind of 400 kilometers of movable-point crossing wing rails of speed per hour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066233.1U CN208815354U (en) | 2018-07-06 | 2018-07-06 | A kind of 400 kilometers of movable-point crossing wing rails of speed per hour |
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| Publication Number | Publication Date |
|---|---|
| CN208815354U true CN208815354U (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821066233.1U Withdrawn - After Issue CN208815354U (en) | 2018-07-06 | 2018-07-06 | A kind of 400 kilometers of movable-point crossing wing rails of speed per hour |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978361A (en) * | 2018-07-06 | 2018-12-11 | 中铁宝桥集团有限公司 | A kind of 400 kilometers of movable-point crossing wing rails of speed per hour and processing method |
-
2018
- 2018-07-06 CN CN201821066233.1U patent/CN208815354U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978361A (en) * | 2018-07-06 | 2018-12-11 | 中铁宝桥集团有限公司 | A kind of 400 kilometers of movable-point crossing wing rails of speed per hour and processing method |
| CN108978361B (en) * | 2018-07-06 | 2024-06-07 | 中铁宝桥集团有限公司 | Wing rail of movable point frog with speed of 400 km per hour and processing method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 721006 No.80 Qingjiang Road, Weibin District, Baoji City, Shaanxi Province Patentee after: CHINA RAILWAY BAOJI BRIDGE GROUP Co.,Ltd. Country or region after: China Patentee after: SOUTHWEST JIAOTONG University Patentee after: Sichuan tietuo Technology Co.,Ltd. Address before: 721006 No.80 Qingjiang Road, Weibin District, Baoji City, Shaanxi Province Patentee before: CHINA RAILWAY BAOJI BRIDGE GROUP Co.,Ltd. Country or region before: China Patentee before: SOUTHWEST JIAOTONG University Patentee before: SICHUAN TUOHUI TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240407 Address after: 721006 No.80 Qingjiang Road, Weibin District, Baoji City, Shaanxi Province Patentee after: CHINA RAILWAY BAOJI BRIDGE GROUP Co.,Ltd. Country or region after: China Patentee after: SOUTHWEST JIAOTONG University Patentee after: SICHUAN TUOHUI TECHNOLOGY Co.,Ltd. Address before: 721006 No.80 Qingjiang Road, Weibin District, Baoji City, Shaanxi Province Patentee before: CHINA RAILWAY BAOJI BRIDGE GROUP Co.,Ltd. Country or region before: China Patentee before: SOUTHWEST JIAOTONG University Patentee before: SICHUAN RUITIE TECHNOLOGY Co.,Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190503 Effective date of abandoning: 20240607 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190503 Effective date of abandoning: 20240607 |