CN202989694U - Minor-radius curve railway track capable of resisting corrugation - Google Patents
Minor-radius curve railway track capable of resisting corrugation Download PDFInfo
- Publication number
- CN202989694U CN202989694U CN 201220725702 CN201220725702U CN202989694U CN 202989694 U CN202989694 U CN 202989694U CN 201220725702 CN201220725702 CN 201220725702 CN 201220725702 U CN201220725702 U CN 201220725702U CN 202989694 U CN202989694 U CN 202989694U
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- radius curve
- rail
- corrugation
- track
- sharp radius
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Abstract
The utility model discloses a minor-radius curve railway track capable of resisting corrugation. The track comprises a steel rail (1), a sleeper (2) and a road bed (3), wherein the steel rail (1)is arranged at the minor-radius curve corner. The track is characterized in that a hydraulic damper (4) is installed between the bottom of the sleeper (2) and the road bed. When vehicles pass on the track, the vibration of wheel tracks can be decayed effectively, the track corrugation is controlled or removed, and the safety of railway transport is improved.
Description
Technical field
The utility model relates to a kind of railway sharp radius curve rail system.
Background technology
Railway especially subway unavoidably to have the sharp radius curve track of radius R≤350m, a general length be that the long subway line of 20～40km namely exists the such sharp radius curve in 5～8 places.Under centrifugal action, when the wheel rim of train wheel in the curve outside during by sharp radius curve can be near Rail elongation zone; Also can produce horizontal force of sliding friction between interior outboard wheels and rail, this horizontal force of sliding friction is under certain accidental system defect (as rail joint, rail level scratch, wheel tread flat etc.) excitation, the interior system that forms with interior rail of taking turns just easily produces a kind of self-excited vibration, this self-excited vibration causes that the fluctuation of wheel track normal direction contact force changes, and causes that namely the fluctuation of wheel-rail friction merit changes.Therefore, the frictional work of this fluctuation will produce a kind of wavy abrasion, i.e. rail corrugation at the working surface of the inner side of curve rail.According to investigation, the inboard rail of the sharp radius curve subway line of China radius R≤350m is 100% generation rail corrugation almost.Rail corrugation can cause serious wheel-rail noise and tunnel vibration, even can cause the vehicle derailing accident, and the normal operation of railway transportation is caused serious harm.
At present, polish only for the rail that the generation ripple is ground to the processing method of rail corrugation in countries in the world, but this mode is not to eradicate the ripple mill from the source, and people's generation of yet can't real-time monitored grinding to ripple and then in time polish, and has serious potential safety hazard.
The utility model content
The purpose of this utility model is, a kind of sharp radius curve railroad track that suppresses the ripple mill is provided, this kind track vehicle by the time, vibration component that can the effective attenuation wheel track is even eliminated rail corrugation thereby control, and improves the safety of railway transportation.
The technical scheme that its technical problem that solves the utility model adopts is, a kind of sharp radius curve railroad track that suppresses the ripple mill, comprise rail, sleeper and the railway roadbed at sharp radius curve bend place, it is characterized in that: the rail at described sharp radius curve bend place is equipped with hydraulic buffer between the bottom surface between sleeper and railway roadbed.
Compared with prior art, the beneficial effects of the utility model are:
By between rail foot surface and railway roadbed, hydraulic buffer being installed, increased the vibration-proof structure of friction system, adjust the asymmetry of this system damping coupling matrix and stiffness coupling matrix, make it to become as far as possible symmetrical matrix, can suppress the friction self-excited vibration that in wheel and curve, the horizontal force of sliding friction between rail causes, whole system becomes a dynamic stabilization system, can better suppress the unstable vibration composition, thereby control generation and the development of rail corrugation, even eliminate rail corrugation, improve the safety of railway transportation.
Above-mentioned sharp radius curve bend place is the whole interval from the point of tangent to spiral that advances curve to the point of spiral to tangent that goes out curve, the hydraulic buffer that described rail is installed between the bottom surface between sleeper and railway roadbed is 3～4 and the damped coefficient of each hydraulic buffer 〉=5 * 10 evenly is installed
5Ns/m.
3～4, damped coefficient 〉=5 * 10 of evenly installing between sleeper in twos
5The hydraulic buffer of Ns/m can more effective change wheel and the state of rail friction coupling, makes it friction self-excited vibration can not occur.
The utility model is described in further detail below in conjunction with accompanying drawing and concrete embodiment.
Description of drawings
Fig. 1 is perspective view of the present utility model.
Fig. 2 is main TV structure schematic diagram of the present utility model.
The specific embodiment
Embodiment
Fig. 1,2 illustrates, a kind of specific embodiment of the present utility model is, a kind of sharp radius curve railroad track that suppresses the ripple mill, comprise rail 1, sleeper 2 and the railway roadbed 3 at sharp radius curve bend place, it is characterized in that: the rail 1 at described sharp radius curve bend place is equipped with hydraulic buffer 4 between the bottom surface of 2 of sleepers and railway roadbed.
This routine sharp radius curve bend place is the whole interval from the point of tangent to spiral that advances curve to the point of spiral to tangent that goes out curve, the hydraulic buffer 4 that described rail 1 is installed between the bottom surface of 2 of sleepers and railway roadbed is 3～4 and the damped coefficient of each hydraulic buffer 4 〉=5 * 10 evenly is installed
5Ns/m.
The damped coefficient of hydraulic buffer 4 of the present utility model is got 5-10 * 10 usually
5Ns/m.Like this, vibration component that can the effective attenuation wheel track is controlled and is even eliminated rail corrugation, and hydraulic buffer is easy to purchase simultaneously, and small investment is convenient to implement.
Claims (2)
1. one kind can be suppressed the sharp radius curve railroad track that ripple grinds, comprise rail (1), sleeper (2) and the railway roadbed (3) at sharp radius curve bend place, it is characterized in that: the rail (1) at described sharp radius curve bend place is equipped with hydraulic buffer (4) between the bottom surface between sleeper (2) and railway roadbed.
2. a kind of sharp radius curve railroad track that suppresses ripple mill according to claim 1, it is characterized in that: described sharp radius curve bend place is the whole interval from the point of tangent to spiral that advances curve to the point of spiral to tangent that goes out curve, the hydraulic buffer (4) that described rail (1) is installed between the bottom surface between sleeper (2) and railway roadbed is for installing 3～4 and evenly installation, the damped coefficient of each hydraulic buffer (4) 〉=5 * 105Ns/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725702 CN202989694U (en) | 2012-12-25 | 2012-12-25 | Minor-radius curve railway track capable of resisting corrugation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725702 CN202989694U (en) | 2012-12-25 | 2012-12-25 | Minor-radius curve railway track capable of resisting corrugation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202989694U true CN202989694U (en) | 2013-06-12 |
Family
ID=48560888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725702 Withdrawn - After Issue CN202989694U (en) | 2012-12-25 | 2012-12-25 | Minor-radius curve railway track capable of resisting corrugation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202989694U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979010A (en) * | 2012-12-25 | 2013-03-20 | 西南交通大学 | Railway minor-radius curve track system capable of inhibiting corrugation |
| CN106609487A (en) * | 2015-10-21 | 2017-05-03 | 中铁二院工程集团有限责任公司 | Urban rail transit track structure capable of restraining corrugation |
| CN107761480A (en) * | 2016-08-18 | 2018-03-06 | 洛阳双瑞橡塑科技有限公司 | A kind of method for reducing rail undulatory wear |
-
2012
- 2012-12-25 CN CN 201220725702 patent/CN202989694U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979010A (en) * | 2012-12-25 | 2013-03-20 | 西南交通大学 | Railway minor-radius curve track system capable of inhibiting corrugation |
| CN106609487A (en) * | 2015-10-21 | 2017-05-03 | 中铁二院工程集团有限责任公司 | Urban rail transit track structure capable of restraining corrugation |
| CN107761480A (en) * | 2016-08-18 | 2018-03-06 | 洛阳双瑞橡塑科技有限公司 | A kind of method for reducing rail undulatory wear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20150520 |
|
| RGAV | Abandon patent right to avoid regrant |