CN204455726U - A kind of novel high-strength high shear composite sleeper - Google Patents
A kind of novel high-strength high shear composite sleeper Download PDFInfo
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- CN204455726U CN204455726U CN201520131510.2U CN201520131510U CN204455726U CN 204455726 U CN204455726 U CN 204455726U CN 201520131510 U CN201520131510 U CN 201520131510U CN 204455726 U CN204455726 U CN 204455726U
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Abstract
The utility model relates to a kind of novel high-strength high shear composite sleeper, comprises the first plate body, parent, the second plate body and some ribs; Described parent is between described first plate body and described second plate body, and described first plate body is connected with described second plate body by described parent.The utility model, by integral forming process, avoids during product uses the potential safety hazard caused that misplaces, reduces the cost of production of product.By increasing high strength high shear plate body on parent surface, greatly strengthen hardness and the intensity on composite sleeper surface, substantially increasing the fingerprinting stress of composite sleeper.By built-in rib, greatly strengthen bearing strength and the resistant to shearing performance of composite sleeper.
Description
Technical field
The utility model relates to a kind of novel high-strength high shear composite sleeper, especially relates to a kind of novel high-strength high shear composite sleeper being applied in the fields such as bridge, high ferro, heavy haul railway.
Background technology
Sleeper is the one of railway casting, plays vital effect in railway construction.In track structure, the effect of sleeper bear transmitted by rail loading, lateral force and longitudinal horizontal force, it spread equably on railway roadbed, meanwhile, sleeper also plays effects such as keeping rail direction, gauge and position.Therefore, require that sleeper will have certain soundness, elasticity and durability, and require that sleeper specification is convenient to fixing rail have the ability of opposing circuit vertical, horizontal displacement.
At present, almost all wooden sleeper is adopted in open bridge floors truss bridge, make sleeper to need to use a large amount of high-quality hard woods, and, wooden sleeper be subject to long-term wind shine drench with rain and river, seawater corrosion after, serious corrosion, and not resistance to insect bite etc., substantially, use and just must change afterwards for 5 years, considerably increase maintenance and the replacement cost of bridge.The maximum difficult problem that present countries in the world are all faced with is the supply continuous decrease of the high-quality timber for railroad sleeper; Secondly always sleeper adopts creosote to flood, and increases its decay resistance, uses the health of chemical preservative sleeper on environment and workman all to bring bad impact; In addition along with the increase gradually of freight volume, and the increase of time and human cost, the cost that sleeper is changed is more and more higher;
Then all use concrete sleeper at heavy haul railway, and concrete sleeper rigidity is too large, does not only possess damping effect, and after train is runed for a long time, after general 5 ~ 10 years, just easily there is crackle, cause potential safety hazard, then need a large amount of replacings, considerably increase maintenance and replacement cost.
In order to protect forest resources, people progressively abandon the excessive use to timber, and along with quick, safe, the comfortable requirement of people to trip, sleeper will progressively be abolished and change, then the new high-tech product-composite sleeper of functional performance excellence.
At present, start the research to composite sleeper both at home and abroad one after another, as the U.S. adopts waste and old PE plastics to make sleeper by surface peening, Korea S is that main material makes sleeper with junked tire, Russia with wood chip for the main research carrying out sleeper, the composite sleeper be made up of polyurethane foam and glass fiber of Japan.And these composite sleepers are be made into goods by the semiproduct made by simple plane bonding substantially, although these composite sleepers have all had both the processability of wooden sleeper, and its decay resistances etc. are all excellent than wooden sleeper, but its intensity, fatigue performance, bolt pulling test strength, anti-bolt relaxation, anti-shear performances etc. all only meet the requirement of urban track traffic sleeper, can not meet the requirement of railroad sleeper for technical indicators such as sleeper carrying and fatigue tests far away, especially heavy haul railway and railroad bridge are for the requirement of composite sleeper.
And current composite sleeper, owing to being by the composite sleeper of the semiproduct blank made by bonding, not only considerably increase the cost of manufacture of product, and in train is runed for a long time, composite sleeper adhesive surface easily misplaces, and causes potential safety hazard.
Utility model content
Technical problem to be solved in the utility model is to provide one and reduces cost of production, effectively avoids in train operation, by the novel high-strength high shear composite sleeper of the potential safety hazard of the composite sleeper adhesive surface dislocation of semiproduct bonding.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of novel high-strength high shear composite sleeper, comprises the first plate body, parent, the second plate body and some ribs; Described parent is between described first plate body and described second plate body, and described first plate body is connected with described second plate body by described parent; Wherein,
Described parent is made up of some layers of parent monomers; To be the base fabric layer that is made up of successively cloth, long glass fiber layer and glass chopped strands layer and resin be prepared from by mold pressing or pultrusion or injection moulding described parent monomers;
Described rib is evenly arranged in described resin, and the laying direction of the setting direction of described rib and described base fabric layer is perpendicular.
In described parent monomers, resin used comprises any one in polyurethane resin, epoxy resin, vinylite, adjacent benzene resin, isophthalic resin or phenolic resins etc.The weight ratio of described base fabric layer and described resin is 60% ~ 80%:20% ~ 40%.
Described cloth comprise in glass fiber, carbon fiber or aramid fiber etc. any one.
The beneficial effects of the utility model are:
1, the utility model is by integral forming process, avoids during product uses the potential safety hazard caused that misplaces, reduces the production and processing cost of product simultaneously;
2, by increasing high strength high shear plate body on parent surface, greatly strengthen hardness and the intensity on composite sleeper surface, substantially increasing the fingerprinting stress of composite sleeper;
3, by built-in rib, greatly strengthen bearing strength and the resistant to shearing performance of composite sleeper;
4, can effectively substitute current wooden sleeper and composite sleeper, railroad bridge, heavy haul railway can be widely used in, and extend in the construction of urban track traffic.
Cloth also known as carbon fiber sheet, carbon fiber cloth, carbon cloth, carbon fibre fabric, carbon fiber tape, carbon fiber plate (prepreg cloth) etc.
Glass fiber is by form and length, and can be divided into continuous fiber, staple fibre and glass wool, the fiber of the endless drawn with mechanical drawing process by platinum alloy plate, is called continuous glass fibre, common name long fibre.
Glass chopped strands is also known as fiberglas chopped strand.By long glass fiber by wet method online short cutting form.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described first plate body and described second plate body are any one in fibre resin substrate material, nylon sheet, polyethylene board, galvanized steel plain sheet, iron plate or stainless-steel sheet etc.
In described fibre resin substrate material, fiber used comprises any one in glass fiber, carbon fiber or aramid fiber etc., its resin used comprise in polyurethane resin, epoxy resin, vinylite, adjacent benzene resin, isophthalic resin or phenolic resins etc. any one.Described fibre resin substrate material can adopt the technique preparations such as pultrusion, mold pressing, hand paste, winding.
Further, the thickness of described first plate body and described second plate body is 3mm ~ 30mm.
Further, described rib is reinforcing bar or composite material bar.
Further, the shape of described rib comprise in cylinder, cuboid or square any one, and be solid.
Preparation method of the present utility model is specific as follows:
1) by coarse for the two-sided polishing of the two-sided of the first plate body and the second plate body, after drying with acetone cleaning, all brush adhesive at the one side of the first plate body and the one side of the second plate body, then the first plate body is put into mold bottom, be brushed with facing up of adhesive;
2) then cloth, long glass fiber layer and glass chopped strands layer are laid in the one side of described first plate body being brushed with adhesive successively, form base fabric layer, and then place upper rib, then at rib upper resin, obtained parent monomers; Wherein,
The setting direction of described rib and the laying direction of described base fabric layer perpendicular;
3) in step 2) in obtained described parent monomers re-lays one deck base fabric layer, and then place upper rib, then at rib upper resin, obtained parent monomers;
4) constantly repeat step 3) step, until arrive the position from mould upstream 3mm ~ 30mm;
5) described second plate body is placed on the parent monomers of most top layer, brushes and have the one side of adhesive to contact with this parent monomers;
6) close cope match-plate pattern, mold temperature is warming up to 90 DEG C ~ 120 DEG C, is cured 1 ~ 1.5 hour, then die sinking, taken out by goods.
Accompanying drawing explanation
Fig. 1 is the vertical section structure schematic diagram of the utility model novel high-strength high shear composite sleeper;
Fig. 2 is longitudinal section structure schematic diagram of the utility model novel high-strength high shear composite sleeper;
Fig. 3 is the structural representation of the base fabric layer of the utility model novel high-strength high shear composite sleeper;
In accompanying drawing, the list of parts representated by each label is as follows:
1, the first plate body, 2, parent, 3, base fabric layer, 3-1, cloth, 3-2, long glass fiber layer, 3-3, glass chopped strands layer, 4, rib, the 5, second plate body.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
A kind of novel high-strength high shear composite sleeper, as shown in Figure 1, Figure 2, Figure 3 shows, comprises the first plate body 1, parent 2, second plate body 5 and some ribs 4; Described parent 2 is between described first plate body 1 and described second plate body 5, and described first plate body 1 is connected with described second plate body 5 by described parent 2; Wherein,
Described parent 2 is made up of some layers of parent monomers; To be the base fabric layer 3 that is made up of cloth 3-1, long glass fiber layer 3-2 and glass chopped strands layer 3-3 be prepared from by mold pressing or pultrusion or injection moulding with resin described parent monomers, and wherein said base fabric layer 3 is 60% ~ 80%:20% ~ 40% with the weight ratio of described resin;
Described rib 4 is evenly arranged in described resin, and the laying direction of the setting direction of described rib 4 and described base fabric layer 3 is perpendicular.
Described first plate body 1 and described second plate body 5 be in fibre resin substrate material, nylon sheet, polyethylene board, galvanized steel plain sheet, iron plate or stainless-steel sheet etc. any one.
In described fibre resin substrate material, fiber used comprises any one in glass fiber, carbon fiber or aramid fiber etc., its resin used comprise in polyurethane resin, epoxy resin, vinylite, adjacent benzene resin, isophthalic resin or phenolic resins etc. any one.
Described fibre resin substrate material can adopt the technique preparations such as pultrusion, mold pressing, hand paste, winding.
The thickness of described first plate body 1 and described second plate body 5 is 3mm ~ 30mm.
In described parent monomers, resin used comprises any one in polyurethane resin, epoxy resin, vinylite, adjacent benzene resin, isophthalic resin or phenolic resins etc.
Described cloth comprise in glass fiber, carbon fiber or aramid fiber etc. any one.
Described rib 4 is reinforcing bar or composite material bar.
The shape of described rib 4 comprise in cylinder, cuboid or square any one, and be solid.
The preparation method of above-mentioned novel high-strength high shear composite sleeper is specific as follows:
1) according to product requirement shape, corresponding mould is made;
By coarse for the two-sided polishing of the two-sided of the first plate body 1 and the second plate body 5, after drying with acetone cleaning, all brush adhesive at the one side of the first plate body 1 and the one side of the second plate body 5, then the first plate body 1 is put into mold bottom, be brushed with facing up of adhesive;
2) then cloth 3-1, long glass fiber layer 3-2 and glass chopped strands layer 3-3 are laid in the one side of described first plate body 1 being brushed with adhesive successively, form base fabric layer 3, and then place upper rib 4, then at rib upper resin, obtained parent monomers; Wherein,
The setting direction of described rib 4 and the laying direction of described base fabric layer 3 perpendicular;
3) in step 2) in obtained described parent monomers re-lays one deck base fabric layer 3, and then place upper rib 4, then at rib upper resin, obtained parent monomers;
4) constantly repeat step 3) step, until arrive the position from mould upstream 3mm ~ 30mm;
5) described second plate body 5 is placed on the parent monomers of most top layer, brushes and have the one side of adhesive to contact with this parent monomers;
6) close cope match-plate pattern, mold temperature is warming up to 90 DEG C ~ 120 DEG C, is cured 1 ~ 1.5 hour, then die sinking, taken out by goods.
Below by way of several specific embodiment to be specifically described the utility model.
Specific embodiment 1
A kind of novel high-strength high shear composite sleeper, manufacturing specification is the bridge sleeper of 3200mm × 200mm × 240mm (long × wide × thick).This sleeper is applied on truss bridge, and the epoxy resin-matrix thickness first having prepared glass fiber reinforcement by pultrude process is the sheet material of 15mm, then by after sheet material polishing cleaning, brushes adhesive for polyurethane, is placed on mold bottom; Arrange the reinforcing bar of glass fabric, continuously long glass fiber, short glass fiber, lateral arrangement diameter ￠ 15mm in the above, cast polyurethane Foamex, then, arrange glass fabric, continuously long glass fiber, short glass fiber again, cast polyurethane Foamex, constantly repeat this step, until thickness is 225mm; And then above the sheet material being 15mm by the epoxy resin-matrix thickness being brushed with the glass fiber reinforcement of adhesive is placed on.Closed die, heating reaches temperature 90 DEG C, after solidification 1.5h, die sinking.This composite sleeper intensity is very high, anti-fatigue performance and high shear excellent performance, can effectively be used in heavy haul railway, bear the gravity of heavy-duty vehicle, relative to concrete sleeper, effectively reduce the load-bearing of bridge, and possessed certain effect of vibration and noise reduction, material is water-fast, corrosion-resistant, resistance to worm ant, and non-maintaining, application life can reach 50 years.
Its performance is in table 1.
Table 1
| Project | Unit | Test result |
| Apparent gross density | kg/m 3 | 816 |
| Bolt pulling test strength | kN | 98 |
| Counter-bending load | kN | 625 |
| Shear strength | MPa | 40 |
| Anti-fatigue performance | Secondary | 3000000 flawlesses |
| Decay resistance | Excellent |
Specific embodiment 2
A kind of novel high-strength high shear composite sleeper, manufacturing specification is the heavy haul railway sleeper of 5000mm × 300mm × 300mm (long × wide × thick).This sleeper is applied on heavy haul railway track switch, and first having prepared the polyurethane resin-based thickness of carbon fiber reinforced by mould pressing process is the sheet material of 30mm, then by after sheet material polishing cleaning, brushes epoxy resin adhesive, is placed on mold bottom; Arrange the reinforcing bar of carbon cloth, continuous carbon long fibre, chopped carbon fiber, lateral arrangement diameter ￠ 25mm in the above, cast epoxy Foamex, then, arrange carbon cloth, continuous carbon long fibre, chopped carbon fiber again, cast epoxy Foamex, constantly repeat this step, until thickness is 270mm; And then above the sheet material being 30mm by polyurethane resin-based for the carbon fiber reinforced being brushed with adhesive thickness is placed on.Closed die, heating reaches temperature 120 DEG C, after solidification 1h, die sinking.This composite sleeper intensity is very high, and fatigue performance and anti-shear performance excellence, effectively can bear the gravity of heavy-duty vehicle, and can effectively reduce vibration and the noise of heavy-duty vehicle wheel track, installation is convenient.
Its performance is in table 2.
Table 2
| Project | Unit | Test result |
| Apparent gross density | kg/m 3 | 834 |
| Bolt pulling test strength | kN | 110 |
| Counter-bending load | kN | 890 |
| Shear strength | MPa | 80 |
| Anti-fatigue performance | Secondary | 3000000 flawlesses |
| Decay resistance | Excellent |
Specific embodiment 3
A kind of novel high-strength high shear composite sleeper, manufacturing specification is the heavy haul railway sleeper of 6000mm × 300mm × 350mm (long × wide × thick).This sleeper is applied on heavy haul railway main track, and first making thickness is the galvanized steel plain sheet of 25mm, then by after sheet material polishing cleaning, brushes the agent of polyurethane resin gluing, is placed on mold bottom; Arrange aryl fiber cloth, continuously aramid fiber long fibre, the short reinforcing bar cutting aramid fiber, lateral arrangement diameter ￠ 30mm in the above, cast polyurethane Foamex, then, arrange carbon cloth, continuous carbon long fibre, chopped carbon fiber again, cast polyurethane Foamex, constantly repeat this step, until thickness is 270mm; And then above the galvanized steel plain sheet being 30mm by the thickness being brushed with adhesive is placed on.Closed die, heating reaches temperature 100 DEG C, after solidification 1h, die sinking.This composite sleeper intensity is very high, and anti-shear performance is excellent, effectively can bear the gravity of heavy-duty vehicle.
Its performance is in table 3.
Table 3
| Project | Unit | Test result |
| Apparent gross density | kg/m 3 | 930 |
| Bolt pulling test strength | kN | 91 |
| Counter-bending load | kN | 128 |
| Shear strength | MPa | 96 |
| Anti-fatigue performance | Secondary | 3000000 flawlesses |
| Decay resistance | Excellent |
The utility model high strength high shear composite sleeper, its combination property is far superior to wooden sleeper, and its intensity, anti-fatigue performance, bolt pulling test strength, shear strength are far superior to the composite sleeper of current urban track traffic.Have employed integral molding techniques, effectively avoid in train operation, by the potential safety hazard of the composite sleeper adhesive surface dislocation of semiproduct bonding, and greatly reduce cost of production.Effectively can replace wooden sleeper and the composite sleeper of current high-quality.The construction of bridge, heavy haul railway can be widely used in, and extend to the construction of city sleeper traffic track.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a novel high-strength high shear composite sleeper, is characterized in that, comprises the first plate body, parent, the second plate body and some ribs; Described parent is between described first plate body and described second plate body, and described first plate body is connected with described second plate body by described parent; Wherein,
Described parent is made up of some layers of parent monomers; To be the base fabric layer that is made up of successively cloth, long glass fiber layer and glass chopped strands layer and resin be prepared from by mold pressing or pultrusion or injection moulding described parent monomers;
Described rib is evenly arranged in described resin, and the laying direction of the setting direction of described rib and described base fabric layer is perpendicular.
2. novel high-strength high shear composite sleeper according to claim 1, it is characterized in that, described first plate body and described second plate body be in fibre resin substrate material, nylon sheet, polyethylene board, galvanized steel plain sheet, iron plate or stainless-steel sheet any one.
3. novel high-strength high shear composite sleeper according to claim 1 and 2, is characterized in that, the thickness of described first plate body and described second plate body is 3mm ~ 30mm.
4. novel high-strength high shear composite sleeper according to claim 1 and 2, is characterized in that, described rib is reinforcing bar or composite material bar.
5. novel high-strength high shear composite sleeper according to claim 4, is characterized in that, the shape of described rib comprise in cylinder, cuboid or square any one, and be solid.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746392A (en) * | 2015-03-09 | 2015-07-01 | 衡水冀军工程技术有限公司 | Novel high-strength and high-shearing-resistance composite sleeper and manufacturing method thereof |
| CN106120480A (en) * | 2016-08-17 | 2016-11-16 | 中国铁道科学研究院铁道建筑研究所 | A kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper and preparation method thereof |
| CN113085225A (en) * | 2021-03-31 | 2021-07-09 | 合肥工业大学 | Method for continuously preparing integral composite sleeper by using controllable polyurethane composite material |
-
2015
- 2015-03-09 CN CN201520131510.2U patent/CN204455726U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746392A (en) * | 2015-03-09 | 2015-07-01 | 衡水冀军工程技术有限公司 | Novel high-strength and high-shearing-resistance composite sleeper and manufacturing method thereof |
| CN104746392B (en) * | 2015-03-09 | 2016-07-06 | 衡水冀军工程技术有限公司 | A kind of novel high-strength high shear composite sleeper and preparation method thereof |
| CN106120480A (en) * | 2016-08-17 | 2016-11-16 | 中国铁道科学研究院铁道建筑研究所 | A kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper and preparation method thereof |
| CN113085225A (en) * | 2021-03-31 | 2021-07-09 | 合肥工业大学 | Method for continuously preparing integral composite sleeper by using controllable polyurethane composite material |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sha Lei Inventor after: Liu Jinying Inventor before: Sha Lei |
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| COR | Change of bibliographic data | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sha Lei Inventor after: Niu Jiahe Inventor after: Liu Jinying Inventor before: Sha Lei Inventor before: Liu Jinying |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180508 Address after: No. 1000, Jingheng North Street, Hengshui, Hebei Province, 053000 Patentee after: Hengshui Hebei Road and bridge maintenance Co. Ltd. Address before: 053000 rubber and plastics road 3, North Industrial Park, Hengshui, Hebei Co-patentee before: Sha Lei Patentee before: Hengshui Ji Jun engineering Technology Co., Ltd. |
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