CN102979010A - Railway minor-radius curve track system capable of inhibiting corrugation - Google Patents
Railway minor-radius curve track system capable of inhibiting corrugation Download PDFInfo
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- CN102979010A CN102979010A CN2012105718885A CN201210571888A CN102979010A CN 102979010 A CN102979010 A CN 102979010A CN 2012105718885 A CN2012105718885 A CN 2012105718885A CN 201210571888 A CN201210571888 A CN 201210571888A CN 102979010 A CN102979010 A CN 102979010A
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- corrugation
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Abstract
The invention discloses a railway minor-radius curve track system capable of inhibiting corrugation, which comprises rails (1), sleepers (2) and a track bed (3) that are located at the minor-radius curve bend. The system is characterized in that hydraulic dampers (4) are mounted on the rails (1) at the minor-radius curve bend and between the bottom of the sleepers (2) and the track bed. When a train runs on the track system, the track system can effectively damp vibration of wheel tracks, thereby controlling, even eliminating the rail corrugation and improving the safety of rail transport.
Description
Technical field
The present invention 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 the rail, this horizontal force of sliding friction is under certain accidental system defect (such as rail joint, rail level scratch, wheel tread flat etc.) excitation, the interior system that forms with interior rail of taking turns just produces a kind of self-excited vibration easily, 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 at the working surface of the inner side of curve rail a kind of wavy abrasion, i.e. rail corrugation.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.
Summary of the invention
The objective of the invention is, a kind of railway sharp radius curve rail system that suppresses ripple mill is provided, this kind rail system vehicle by the time, vibration component that can the effective attenuation wheel track, thereby control even eliminate rail corrugation improve the safety of railway transportation.
The technical solution adopted for the present invention to solve the technical problems is, a kind of railway sharp radius curve rail system 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 invention has the beneficial effects as follows:
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 the horizontal force of sliding friction between the rail causes in wheel and the curve, whole system becomes a dynamic stabilization system, can better suppress the unstable vibration composition, thereby generation and the development of control rail corrugation, even the elimination rail corrugation, the safety of raising 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 evenly the damped coefficient of each hydraulic buffer 〉=5 * 10 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 present invention 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 invention.
Fig. 2 is main TV structure schematic diagram of the present invention.
The specific embodiment
Embodiment
Fig. 1,2 illustrates, a kind of specific embodiment of the present invention is, a kind of railway sharp radius curve rail system 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 evenly the damped coefficient of each hydraulic buffer 4 〉=5 * 10 is installed
5Ns/m.
The damped coefficient of hydraulic buffer 4 of the present invention is got 5-10 * 10 usually
5Ns/m.Like this, vibration component that can the effective attenuation wheel track, control even eliminate rail corrugation, hydraulic buffer is easy to purchase simultaneously, and small investment is convenient to implement.
Claims (2)
1. one kind can be suppressed the railway sharp radius curve rail system 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 railway sharp radius curve rail system 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 * 10
5Ns/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571888.5A CN102979010B (en) | 2012-12-25 | 2012-12-25 | Railway minor-radius curve track system capable of inhibiting corrugation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571888.5A CN102979010B (en) | 2012-12-25 | 2012-12-25 | Railway minor-radius curve track system capable of inhibiting corrugation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102979010A true CN102979010A (en) | 2013-03-20 |
| CN102979010B CN102979010B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210571888.5A Expired - Fee Related CN102979010B (en) | 2012-12-25 | 2012-12-25 | Railway minor-radius curve track system capable of inhibiting corrugation |
Country Status (1)
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| CN (1) | CN102979010B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292177A (en) * | 2015-11-26 | 2016-02-03 | 唐智科技湖南发展有限公司 | Method for measuring track corrugation by utilizing axle box vibration and impact information |
| CN117684422A (en) * | 2023-10-20 | 2024-03-12 | 河北路通铁路器材有限公司 | Railway track shock absorber |
Citations (7)
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|---|---|---|---|---|
| EP0456147A1 (en) * | 1990-05-07 | 1991-11-13 | Getzner-Chemie Gesellschaft m.b.H. | Railwaytrack structure |
| JP2001124683A (en) * | 1999-10-27 | 2001-05-11 | Nippon Steel Corp | Experimental method for reproducing corrugated wear |
| KR20120037158A (en) * | 2010-10-11 | 2012-04-19 | 이용봉 | Apparatus for reducing friction noise from flanged wheel entering curved rail |
| CN102619145A (en) * | 2011-01-26 | 2012-08-01 | 北京易科路通铁道设备有限公司 | Longitudinal beam type sleeper system |
| CN202369868U (en) * | 2011-12-29 | 2012-08-08 | 中国船舶重工集团公司第七一一研究所 | Combined type compression type rail vibration damper |
| CN202482713U (en) * | 2012-01-30 | 2012-10-10 | 重庆信合塑胶有限公司 | Damping and vibration isolating device for traffic tracks |
| CN202989694U (en) * | 2012-12-25 | 2013-06-12 | 西南交通大学 | Minor-radius curve railway track capable of resisting corrugation |
-
2012
- 2012-12-25 CN CN201210571888.5A patent/CN102979010B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456147A1 (en) * | 1990-05-07 | 1991-11-13 | Getzner-Chemie Gesellschaft m.b.H. | Railwaytrack structure |
| JP2001124683A (en) * | 1999-10-27 | 2001-05-11 | Nippon Steel Corp | Experimental method for reproducing corrugated wear |
| KR20120037158A (en) * | 2010-10-11 | 2012-04-19 | 이용봉 | Apparatus for reducing friction noise from flanged wheel entering curved rail |
| CN102619145A (en) * | 2011-01-26 | 2012-08-01 | 北京易科路通铁道设备有限公司 | Longitudinal beam type sleeper system |
| CN202369868U (en) * | 2011-12-29 | 2012-08-08 | 中国船舶重工集团公司第七一一研究所 | Combined type compression type rail vibration damper |
| CN202482713U (en) * | 2012-01-30 | 2012-10-10 | 重庆信合塑胶有限公司 | Damping and vibration isolating device for traffic tracks |
| CN202989694U (en) * | 2012-12-25 | 2013-06-12 | 西南交通大学 | Minor-radius curve railway track capable of resisting corrugation |
Non-Patent Citations (2)
| Title |
|---|
| 周亮: "上海地铁曲线轨道减磨措施试验研究", 《城市轨道交通研究》 * |
| 郭建平: "北京地铁4号线钢轨异常波磨调查及整治措施", 《都市快轨交通》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292177A (en) * | 2015-11-26 | 2016-02-03 | 唐智科技湖南发展有限公司 | Method for measuring track corrugation by utilizing axle box vibration and impact information |
| CN105292177B (en) * | 2015-11-26 | 2017-12-29 | 唐智科技湖南发展有限公司 | It is a kind of vibrated with axle box, impact information measure track ripple mill method |
| CN117684422A (en) * | 2023-10-20 | 2024-03-12 | 河北路通铁路器材有限公司 | Railway track shock absorber |
| CN117684422B (en) * | 2023-10-20 | 2024-05-07 | 河北路通铁路器材有限公司 | Railway track shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102979010B (en) | 2015-05-20 |
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Granted publication date: 20150520 Termination date: 20171225 |