CN2665195Y - Concrete sleeper rail support groove position straight slope trench retaining shoulder arrangement - Google Patents
Concrete sleeper rail support groove position straight slope trench retaining shoulder arrangement Download PDFInfo
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- CN2665195Y CN2665195Y CN 200320115106 CN200320115106U CN2665195Y CN 2665195 Y CN2665195 Y CN 2665195Y CN 200320115106 CN200320115106 CN 200320115106 CN 200320115106 U CN200320115106 U CN 200320115106U CN 2665195 Y CN2665195 Y CN 2665195Y
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- groove
- rail support
- shoulder block
- support groove
- apron
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Abstract
The utility model provides a straight grade groove shoulder structure arranged at the concrete sleeper rail ditch. The utility model, improved from original concrete sleeper shoulder, comprises a screw spike structure, a fastener, a gauge adjustment structure and a height adjustment structure, and is characterized in that the height between the sleeper end and the shoulder is increased by 20mm, the depth of the gauge baffle is increased by 10mm and the depth of the rubber bottom plate is increased by 14mm. The baffle seat matches with the groove of the rail ditch in shape and the height of the baffle seat can be increased according to assembling requirement; the gauge baffle matches with the groove of the baffle seat. The baffle seat can be configured to be a T-shaped or arc or ladle baffle seat. The beneficial effects are that: the shoulder concrete and the baffle seat of the original structure are under great stress under the coactions of horizontal force and vertical force, and the stressing is irrational; with reasonable stressing, the utility model requires less maintenance and damage is reduced, ensuring the long term service of the sleeper, therefore the utility model is an economical and applicable technique proposal.
Description
Technical field
The utility model belongs to the improvement of railway standard gauge concrete sleeper rail support groove shoulder block structure, to improve the stressed distribution situation of rail support groove position shoulder block, prevents from that fastener from producing to swash under the effect of lateral force, improves the life-span of concrete sleeper and fastener.
Background technology
Known to applicant's specialty: railway high speedization and heavy loading development cause train to produce bigger lateral force.Original structure can not be satisfied the demand, and excessive lateral force not only makes the track geometry size be difficult to keep, and reduces track component application life, and the destruction of causing track component when serious is particularly to the extruding and the shear failure of concrete shoulder block.Original structure is as shown in Figures 1 and 2: original structure mainly stresses to solve and improves rail down and the bearing capacity of pillow middle section, improve in length and breadth to resistance and stability, exists the gauge apron seat easily to get loose, and causes the concrete shoulder block to suffer the serious damage problem.Under the gauge apron seat b and vibration condition on the train horizontal force F sleeper a, gauge apron seat b is through regular meeting's c phenomenon that occurs swashing.The test of shoulder block lateral thrust shows that also when horizontal force F is 60kN, gauge apron seat b will swash, and make elastic bar fastener be in abnormal operating state, and effective buckle press can't be provided.Just because of the c that swashes of gauge apron seat b will make the shoulder block breakage.Horizontal force F and vertically act on component F1 and the effect of horizontal force component F2 under, gauge apron seat b swashes, swashes when serious along shoulder block slope direction, reduce with the sleeper contact area, contact area reduces, shear stress will increase, and cause shear stress to surpass concrete intensity and break.As seen, the structural shape and the stress of the shoulder block that only changes could fundamentally solve the shoulder block damaging problem.
The utility model content
The purpose of this utility model is intended to seek the above-mentioned problems of the prior art of a kind of solution, makes out all concrete sleeper rail support groove position shoulder block structures preferably of a kind of stress performance and economic performance.
The purpose of this utility model is based on such consideration and realizes: on the one hand from the sleeper physical dimension, satisfying under technology and the economic requirement prerequisite, sleeper end concrete is being increased as far as possible; From form of structure, do not influencing under the stressed prerequisite of each of fastener on the other hand, changing the form of structure of concrete sleeper shoulder block, and then changing the mode of transfer force of apron block, the lateral force that apron block is transmitted on the shoulder block tilts to vertical direction from horizontal direction.Its technical solution is:
The straight sloping groove shoulder block structure in a kind of concrete sleeper rail support groove position, the structure and fastener, gauge adjustment, the height that comprise screw spike are adjusted, it is characterized in that: 20mm is increased to the shoulder block concrete in the sleeper end, and gauge apron is thick to be 10mm, and the rubber pad thickness of slab is 14mm; The shape of apron block and the groove shape of rail support groove is suitable, its thickness is looked assembling require to increase, gauge apron and apron block groove are identical.
Described shoulder block structure, its shoulder block is made up of an oblique line, a vertical curve and a circular arc line in the projection of positive facade, and its bend is long to be 17-18mm, and vertically line length is 29-31mm, and rail support groove end ditch depth is 8-10mm, the wide 17-19mm of being, adopts T shape apron block structure.
Described shoulder block is long at the oblique line of the projection of positive facade to be 17.5mm, and vertically line length is 30mm.
Described rail support groove end ditch depth is 9mm, and wide is 18mm.
The utility model is compared with original structure, its beneficial effect: original structure is under the acting in conjunction of lateral force and vertical force, the stress of shoulder block concrete and apron block is all very big, force-bearing situation shortcoming reasonability, this straight sloping groove structure, stressed more reasonable, enough spaces are arranged between groove place and the screw spike, be convenient to the layout of spiral reinforcement, the railway spike surrounding concrete does not have excessive stresses, thereby reduce maintenance and destruction, can guarantee the permanently effective use of sleeper.This structure tension performance and original structure contrast see table 1 for details, and this structure member materials contrast sees table 2 for details, the production technology contrast sees table 3 for details.
This structure tension performance of table 1 and original structure contrast
| Structure | The maximum equivalent stress (Mpa) of shoulder block concrete | Apron block maximum stress (Mpa) |
| Original structure | 35 | 65 |
| Straight sloping groove structure | 17 | 20 |
| Permissible stress (Mpa) | 36 | 110 |
These structure member materials of table 2 and original structure contrast
| Structure | Apron block materials (kg/) | Gauge apron materials (kg/) | Sleeper apron block materials (kg/ root) | Sleeper gauge apron materials (kg/ root) |
| Original structure | 0.042 | 0.724 | 0.168 | 2.896 |
| Straight sloping groove structure | 0.131 | 0.926 | 0.528 | 3.704 |
This structure production technology of table 3 and original structure contrast
| Structure | The sleeper technical difficulty | The gauge apron technical difficulty | The apron block technical difficulty | Remarks |
| Original structure | Generally | Generally | Generally | |
| Straight sloping groove structure | Difficult | Easily | Easily | The anti-skidding apron block of gauge apron is anti-skidding |
Description of drawings
Fig. 1 is the original structure gauge apron seat schematic diagram that swashes.
Fig. 2 is that the gauge apron seat swashes to shoulder block stressing influence schematic diagram.
Fig. 3 is the straight sloping groove structure half section schematic diagram of the utility model.
The specific embodiment
Referring to Fig. 3: the utility model comprises that structure and material, fastener (spring 4), gauge adjustment, the height of screw spike 1 (and nut 2, plain washer 3) adjust.Shoulder block to sleeper end concrete is increased 20mm, shoulder block is made up of an oblique line, a vertical curve and a circular arc line in the projection of positive facade, its bend is long to be 17-18mm, vertically line length is 29-31mm, rail support groove end ditch depth is 8-10mm, the wide 17-19mm of being, the gauge apron 5 of thickening is thick be 10mm, and rubber mat plate 7 is thick to be 14mm, employing T shape apron block 6.Shoulder block is long at the best oblique line of the projection of positive facade to be 17.5mm, the best long 30mm that is of vertical curve.Rail support groove end ditch depth the best is 9mm, and wide the best is 18mm.Existing rubber mat plate effective bumper and absorbing shock under dynamic action in the application life of having reduced track component, has quickened the undulatory wear of rail and the accumulation of railway roadbed permanent deformation.After improving rubber mat plate 7 is increased to 14mm by existing 7mm, so that it gives full play to the bumper and absorbing shock performance for this reason.In view of the stress performance of spring comparatively complex technology improve the back fastener and still adopt 60Si
2The II type spring that CrA makes, and guarantee that the duty of spring 4 does not change.Gauge apron 5 thickness are increased to 10mm from 8mm, do the time spent so that circuit speed-raising back produces bigger lateral force, and gauge apron 5 also can satisfy instructions for use.Adapt to the variation of sleeper shoulder block form of structure and the increase of backing plate 7 thickness with the form of structure of apron block 6 and the variation of thickness, satisfying the upset use of considering apron block 6 under the prerequisite of structural requirement.The structure and material of screw spike is not changed, and it still adopts the sulfur cement mortar anchorage mode with concrete the connection.Consider the stress of bolt when changing the shoulder block structure, avoiding changing force-bearing situation deterioration of back bolt own and bolt periphery concrete stress increases, and guarantees that simultaneously lateral force is not delivered on the screw spike.The incompatible realization that matches of jack per station gauge apron and apron block is adopted in the gauge adjustment, and height adjustment is adopted to add at the flange of rail and heightened pad and realize that the adjustment amount of gauge and height all must not be lower than the adjustment amount of existing fastener.
Owing to take above-mentioned technical pattern measure, particularly change the structure of concrete sleeper shoulder block, and then change the mode of transfer force of apron block, the lateral force that apron block is transmitted on the shoulder block tilts to vertical direction from horizontal direction.This structure shoulder block is under the synergy of vertical force and lateral force, and stress is little everywhere, and stress is concentrated not obvious, stressed comparatively reasonable.Enough spaces are arranged between groove place and the screw spike, be convenient to the layout of spiral reinforcement, the railway spike surrounding concrete does not have excessive stress.Shortcoming is sleeper on making technical requirements is higher, is not easy the demoulding, and apron block uses of can not overturning must be disposed the requirement that more number adapts to different gauges.
Claims (4)
1. straight sloping groove shoulder block structure in concrete sleeper rail support groove position, the structure and fastener, gauge adjustment, the height that comprise screw spike are adjusted, it is characterized in that: 20mm is increased to the shoulder block concrete in the sleeper end, and gauge apron is thick to be 10mm, and the rubber pad thickness of slab is 14mm; The shape of apron block and the groove shape of rail support groove is suitable, its thickness is looked assembling require to increase, gauge apron and apron block groove are identical.
2. the straight sloping groove shoulder block structure in concrete sleeper rail support groove according to claim 1 position, it is characterized in that: described shoulder block structure, its shoulder block is made up of an oblique line, a vertical curve and a circular arc line in the projection of positive facade, its bend is long to be 17-18mm, vertically line length is 29-31mm, rail support groove end ditch depth is 8-10mm, the wide 17-19mm of being, adopts T shape apron block structure.
3. the straight sloping groove shoulder block structure in concrete sleeper rail support groove according to claim 2 position is characterized in that: described shoulder block is long at the oblique line of the projection of positive facade to be 17.5mm, and vertically line length is 30mm.
4. the straight sloping groove shoulder block structure in concrete sleeper rail support groove according to claim 1 and 2 position, it is characterized in that: described rail support groove end ditch depth is 9mm, wide is 18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320115106 CN2665195Y (en) | 2003-11-28 | 2003-11-28 | Concrete sleeper rail support groove position straight slope trench retaining shoulder arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320115106 CN2665195Y (en) | 2003-11-28 | 2003-11-28 | Concrete sleeper rail support groove position straight slope trench retaining shoulder arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665195Y true CN2665195Y (en) | 2004-12-22 |
Family
ID=34345736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320115106 Expired - Fee Related CN2665195Y (en) | 2003-11-28 | 2003-11-28 | Concrete sleeper rail support groove position straight slope trench retaining shoulder arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665195Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952513B (en) * | 2008-02-22 | 2013-03-20 | 沃斯洛工厂有限公司 | System for fastening a rail on a base |
| CN104313952A (en) * | 2014-08-04 | 2015-01-28 | 太仓中博铁路紧固件有限公司 | Track elastic strip fastener system capable of being heightened |
-
2003
- 2003-11-28 CN CN 200320115106 patent/CN2665195Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952513B (en) * | 2008-02-22 | 2013-03-20 | 沃斯洛工厂有限公司 | System for fastening a rail on a base |
| US9103073B2 (en) | 2008-02-22 | 2015-08-11 | Vossloh-Werke Gmbh | System for fastening a rail, and fastening of a rail on a substrate |
| CN104313952A (en) * | 2014-08-04 | 2015-01-28 | 太仓中博铁路紧固件有限公司 | Track elastic strip fastener system capable of being heightened |
| CN104313952B (en) * | 2014-08-04 | 2016-06-22 | 太仓中博铁路紧固件有限公司 | A kind of track elastic bar fastener system of adjustable height |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041222 Termination date: 20101128 |