CN103498391B - Section rod friction type stepless automatic height-adjustment sleeper - Google Patents
Section rod friction type stepless automatic height-adjustment sleeper Download PDFInfo
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- CN103498391B CN103498391B CN201310454923.XA CN201310454923A CN103498391B CN 103498391 B CN103498391 B CN 103498391B CN 201310454923 A CN201310454923 A CN 201310454923A CN 103498391 B CN103498391 B CN 103498391B
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- sleeper
- friction
- section
- type stepless
- stepless automatic
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
A section rod friction type stepless automatic height-adjustment sleeper is a concrete sleeper arranged on a transition section of a railway line. The section rod friction type stepless automatic height-adjustment sleeper is characterized in that friction section rods are evenly distributed on the bottom face, provided with steel rail sections, on the sleeper, each friction section rod comprises more than 2 sections of single-way reversed cones, the friction section rods are welded with stress steel ribs prearranged in the sleeper, after concrete pouring, the friction section rods are integrally with the sleeper, the friction section rods are buried in railway ballast and are made of common low-carbon steel, and die forging or casting forming can be achieved. The section rod friction type stepless automatic height-adjustment sleeper has the advantages of being simple in structure, automatic in adjusting, reliable in working and the like, the section rod friction type stepless automatic height-adjustment sleeper can be used on ballast track beds on transition sections of different line structures, and the unsmooth problem caused by differential settlement of a line is solved.
Description
Technical field
The present invention relates to the stepless automatic adjustment height sleeper of a kind of pole friction-type.
Background technology
Rail track structure is made up of line (roadbed circuit), bridge, tunnel, station, and the track structure of circuit, according to the difference of classification of rail and technical standard, can lay Ballast track and non-fragment orbit.The stiffness difference of different line construction is remarkable, train by time cause the dynamic respond of rail level inconsistent, meanwhile, the foundation settlement of different structure thing is also uneven, very easily produces distortion and cause rail level to bend near transition point.When train passes through at a high speed, vehicle and the mutual dynamic action of circuit aggravate, and cause the serious irregularity of rail level, the deterioration of acceleration line line state, increase the maintenance cost of circuit, even threaten traffic safety time serious.
For reducing the sudden change of circuit rigidity between different line construction, need to arrange changeover portion in the junction of non-fragment orbit and Ballast track, roadbed and bridges and culverts, roadbed and tunnel and embankment and cutting, to realize the gradual transition of circuit rigidity within the scope of changeover portion.The processing method that changeover portion is conventional has: 1, increase track vertical rigidity in the softer side of changeover portion, such as adopt and within the scope of changeover portion, to adjust length of sleeper and spacing to improve orbit rigidity, by using the overlength sleeper that progressively increases and reducing the progressively transition that sleeper pitch can realize orbit rigidity.2, reduce track vertical rigidity in the harder side of changeover portion, generally adopt at the softer rubber cushion of the rail underlay of track; At the large rubber cushion of pillow underlay high resiliency; Increase railway ballast thickness on bridge, overlay railway ballast pad etc.3, arrange auxiliary rail and improve track structure frame stiffness, auxiliary rail is made up of the rail that four are attached on sleeper, and two are being run between rail, and two outside operation rail.Said method has good effect for the stiffness variation rate reduced between different line construction, but can not solve the rail level bending problem caused by differential settlement between different structure, therefore has certain limitation, can not solve the irregularity problem of changeover portion completely.
Summary of the invention
Object of the present invention is just to provide that a kind of structure is simple, reliable operation, can be used on the Ballast track railway roadbed in different line construction transition location, solves the stepless automatic adjustment height sleeper of pole friction-type of the irregularity problem that circuit differential settlement causes.
The stepless automatic adjustment height sleeper of pole friction-type of the present invention, it is a kind of concrete sleeper be arranged in railway line on changeover portion, it is characterized in that, the bottom surface of sleeper being installed rail section is provided with equally distributed friction pole, and friction pole contains the unidirectional back taper of more than 2 joints, the stress reinforcement welding that friction pole is preset with sleeper inside, be linked into one with sleeper after concreting, friction pole is embedded in railway ballast, is ordinary low-carbon steel with material, can die forging or casting.
The stepless automatic adjustment height sleeper of pole friction-type of the present invention, utilizes friction pole to save the principle that unidirectional back taper can form unidirectional supporting and frictional resistance in railway ballast, by the trigger action of steel rail spring restoring force, and automatic controlled height, the unsettled amount of compensating sleeper.Specific works principle is as follows: sleeper is pressed common process and laid, and sleeper is bearing on railway ballast, and friction pole is compressed in the railway ballast of making firm by ramming.When train wheel is through out-of-date, wheel passes on railway roadbed via sleeper, friction pole and railway ballast the active force that rail produces, if sedimentation appears in railway roadbed, rail will produce elastic bending deflection downwards.When train wheel leaves, the elastic deformation of rail is recovered, and produces a very large elastic force upwards, rail drive sleeper moves upward, and makes voided sleeper.Because sleeper and friction pole are one, therefore, the friction pole with the unidirectional back taper of more piece is upwards twitched from railway ballast, just in time compensate for the settling amount of railway roadbed.When train wheel is again through out-of-date, because railway ballast is respectively to the randomness of size and the extruding of railway ballast, supporting force upwards and frictional resistance are produced to the unidirectional back taper of friction pole, and every root friction pole has multiple unidirectional back taper structure, increase bearing area and friction force, be enough to the active force that supporting rail transmits, that is the height of sleeper remains unchanged, now, wheel passes on railway roadbed via sleeper, friction pole and railway ballast the active force that rail produces.If now railway roadbed is without sedimentation, then sleeper height is constant; If now sedimentation appears in railway roadbed, then again repeat above-mentioned adjustment process.
The stepless automatic adjustment height sleeper of pole friction-type of the present invention, has structure simple, automatically regulates, the features such as reliable operation, can be used on the Ballast track railway roadbed in different line construction transition location, solves the irregularity problem that circuit differential settlement causes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the side structure schematic diagram of Fig. 1.
Detailed description of the invention
The stepless automatic adjustment height sleeper of a kind of pole friction-type, it is characterized in that, the bottom surface of sleeper 2 being installed rail 1 section is provided with equally distributed friction pole 4, friction pole 4 is containing unidirectional back tapers more than 2 joints, the stress reinforcement welding that friction pole 4 is inner preset with sleeper 2, be linked into one with sleeper 2 after concreting, friction pole 4 is embedded in railway ballast 3, friction pole 4 in length and breadth to center distance be 80-120mm, be conducive to when sleeper laying between 20-70mm railway ballast engaging friction pole 4, and do not affect railway ballast and make firm by ramming.
Claims (1)
1. the stepless automatic adjustment height sleeper of pole friction-type, it is characterized in that: the bottom surface of sleeper (2) being installed rail (1) section is provided with equally distributed friction pole (4), friction pole (4) is containing unidirectional back tapers more than 2 joints, the stress reinforcement welding that friction pole (4) is inner preset with sleeper (2), be linked into one with sleeper (2) after concreting, friction pole (4) is embedded in railway ballast (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454923.XA CN103498391B (en) | 2013-09-30 | 2013-09-30 | Section rod friction type stepless automatic height-adjustment sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454923.XA CN103498391B (en) | 2013-09-30 | 2013-09-30 | Section rod friction type stepless automatic height-adjustment sleeper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103498391A CN103498391A (en) | 2014-01-08 |
| CN103498391B true CN103498391B (en) | 2015-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310454923.XA Expired - Fee Related CN103498391B (en) | 2013-09-30 | 2013-09-30 | Section rod friction type stepless automatic height-adjustment sleeper |
Country Status (1)
| Country | Link |
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| CN (1) | CN103498391B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237219B (en) * | 2016-03-28 | 2020-01-24 | 北京知易普道技术有限责任公司 | Horizontal and composite direction displacement adjusting and compensating device and mechanism |
| CN108978359A (en) * | 2018-08-17 | 2018-12-11 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of anti-railway ballast splashing type concrete sleeper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5863147A (en) * | 1996-05-14 | 1999-01-26 | David E. Pressler | Pavement for conveying vehicular traffic |
| JP2002004201A (en) * | 2000-06-16 | 2002-01-09 | Takehiko Takasaki | Metallic sleeper and railway capable of reducing compaction of ballast |
| JP2008190165A (en) * | 2007-02-02 | 2008-08-21 | Railway Technical Res Inst | Support structure of statically indeterminate structure |
| CN202595581U (en) * | 2012-04-24 | 2012-12-12 | 长江航运规划设计院 | Improved sleeper railway ballast structure |
| CN203546526U (en) * | 2013-09-30 | 2014-04-16 | 华东交通大学 | Friction-type automatic stepless heightening sleeper employing section bars |
-
2013
- 2013-09-30 CN CN201310454923.XA patent/CN103498391B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5863147A (en) * | 1996-05-14 | 1999-01-26 | David E. Pressler | Pavement for conveying vehicular traffic |
| JP2002004201A (en) * | 2000-06-16 | 2002-01-09 | Takehiko Takasaki | Metallic sleeper and railway capable of reducing compaction of ballast |
| JP2008190165A (en) * | 2007-02-02 | 2008-08-21 | Railway Technical Res Inst | Support structure of statically indeterminate structure |
| CN202595581U (en) * | 2012-04-24 | 2012-12-12 | 长江航运规划设计院 | Improved sleeper railway ballast structure |
| CN203546526U (en) * | 2013-09-30 | 2014-04-16 | 华东交通大学 | Friction-type automatic stepless heightening sleeper employing section bars |
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| Publication number | Publication date |
|---|---|
| CN103498391A (en) | 2014-01-08 |
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Granted publication date: 20150624 Termination date: 20200930 |