CN101787667B - Easy-maintenance floating ballast bed - Google Patents
Easy-maintenance floating ballast bed Download PDFInfo
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- CN101787667B CN101787667B CN2009100139634A CN200910013963A CN101787667B CN 101787667 B CN101787667 B CN 101787667B CN 2009100139634 A CN2009100139634 A CN 2009100139634A CN 200910013963 A CN200910013963 A CN 200910013963A CN 101787667 B CN101787667 B CN 101787667B
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Abstract
The invention belongs to a railway ballast bed and relates to a track structure of the railway. The railway ballast bed comprises a floating slab and an elastic vibration isolator, wherein the elastic vibration isolator is arranged in a reserved through hole of the floating slab; a support stop block is arranged on the inner wall of the through hole; the floating slab is supported on the elastic vibration isolator through the support stop block; a blind hole or a groove is reserved on a concrete structure of the inner wall of the through hole of the floating slab; and the support stop block is inserted in the blind hole or the groove. In the invention, the support stop block is separated from the floating slab, the support stop block can be maintained and replaced at any time under the condition of unchanged original vibration isolation performance of the floating ballast bed, the structure is more reasonable, and the service life of the floating ballast bed is beneficially prolonged.
Description
Technical field
The invention belongs to railway ballast, especially relate to a kind of track structure of railway, specifically can be railway roadbeds such as railway, subway, city railway, elevated railway, high-speed railway.
Background technology
Vibration and noise are the most a kind of public hazards of influence surface that people generally acknowledge, also are the difficult problems that needs to be resolved hurrily that the development of track traffic is in recent years faced.In the noise reduction technology of existing track traffic, what application in practice was the most successful is the member livitation, is typically floating ballast bed technology, its vibration isolation efficiency height, and stable work in work has become common recognition in the industry.The patent No. is that the Chinese patent of ZL2004100354411 discloses a kind of floating ballast bed structure, wherein the built-in type floating plate is provided with through hole on the plate of floating, support stop is set in the through hole, the plate of floating is supported on the spring vibration isolation device by support stop, described support stop can be to float concrete structure on the through-hole wall of plate, also can be to embed concrete metal embedded part, or the through hole of the plate of floating is embedded with joint sheeve, on the joint sheeve inwall, support stop is set again, wherein support stop can weld together with joint sheeve in advance, and joint sheeve pours into an integrated entity with the plate of floating then.The elastomeric bearing of plate though technique scheme can successfully realize floating, but because the key structure that is used to support--support stop connects or integrated setting with the plate curing of floating, and many floating ballast bed being in for a long time in the dark moist abominable working environment, therefore in case support stop damage or serious corrosion take place, maintain and replace will be very difficult, might directly cause floating ballast bed can't operate as normal, interrupt track operation traffic.And be 100 years the projected life of the plate of floating, the concrete structure that maintenance is good generally can satisfy above-mentioned requirements, but employing is sprayed paint or the life-span of the antiseptic ordinary carbon steel material of galvanizing is generally 20-30, obviously can't satisfy requirement projected life without changing.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, provide a kind of support stop and the plate split of floating to be provided with, can change the easy-maintenance floating ballast bed of support stop as required at any time.
The present invention is easy-maintenance floating ballast bed to be to realize like this, comprise float plate and elastic vibration isolation device, the elastic vibration isolation device is arranged in the reservation through hole of the plate of floating, on the inwall of through hole support stop is set, the plate of floating is supported on the elastic vibration isolation device by support stop, float and reserve blind hole or groove on the concrete structure of plate through-hole wall, support stop is local to be inserted in blind hole or the groove.
The easy-maintenance floating ballast bed employed elastic vibration isolation device of the present invention comprises various ways, for example can be steel spring vibration isolator, rubber shock absorber or air cushion shock absorber etc., wherein the flexible member of Cai Yonging can be helical steel springs, dish spring or rubber-metal complex spring, also can be the rubber elastomeric material, solid damping materials such as fluid damping materials such as silicone oil or rubber can also be set in the elastic vibration isolation device.
Jacking is for convenience installed, and can also on the reservation through-hole wall of the plate of floating the jacking block be set, or reserves through hole and be embedded with coupling sleeve, and the jacking block is set on coupling sleeve top or the inwall, and the position of the corresponding support stop of coupling sleeve is provided with through hole.When not using coupling sleeve, the jacking block also can be the same with support stop, and the local plate of floating that inserts is reserved in the blind hole of reserving on the concrete structure of through-hole wall or groove.
For protection the float blind hole that is provided with on the plate or the purpose of groove, can be on the sidewall of blind hole or groove at least the part lining is set.Described lining is made of wear-resistant, corrosion resistant metal or nonmetals, as stainless steel, pottery etc., also can be the high strength prefabricated component that high-grade concrete is made, the life-span of these materials all be higher than through spraying paint or the ordinary carbon steel material of galvanizing after handling.Perhaps around blind hole or groove, the stiffener net is set, improves local strength, also can realize protecting the function of blind hole or groove as lining.Described blind hole or groove can be horizontally disposed with, and also can be obliquely installed.When being obliquely installed, ponding in blind hole or the groove, the relative altitude of an open side should be lower.
Float between plate and the support stop or/and float between plate and the jacking block, between lining and the support stop or/and be provided with between lining and the jacking block and prevent the relative stopping means that moves horizontally.Stopping means is the default limiting plate on plate or the lining of floating, and links to each other by bolt or pin between limiting plate and support stop or the jacking block; Stopping means also can be embossing or the concaveconvex structure that is provided with on support stop or the jacking block, or between support stop and the lining and the concaveconvex structure of corresponding setting between jacking block and the lining.In addition, can also be chosen between the support stop to be provided with and prevent the limiting plate that moves horizontally.
In order between elastic vibration isolation device and support stop pad to be set from float plate and adjust the height and the levelness of floating plate of the plate top jacking of floating, the central authorities of pad leave the jacking through hole.Height and the gradient that just can regulate the plate of floating by the gross thickness of adjusting pad.
The upper and lower top board of the size of the central opening that support stop forms in the plate through hole of floating and shape and elastic vibration isolation device and pad big or small compatible, and the overlapping that can misplace, after promptly elastic vibration isolation device and/or pad being put into the support stop below from opening top, vibration isolator and/or pad are rotated to an angle around vertical pivot, and end face on support stop and the elastic vibration isolation device is or/and pad dislocation overlapping.
In order to prevent elastic vibration isolation device horizontal shift, be provided with coupling arrangement in the upper and lower surface of elastic vibration isolation device, the top coupling arrangement connects with pad or support stop, and the below coupling arrangement connects with the basis, and coupling arrangement is mechanical brakeman, bolt or concaveconvex structure.
The present invention is easy-maintenance floating ballast bed, critical component with supporting--support stop is arranged with the plate branch of floating, guaranteeing under the constant situation of floating ballast bed original anti-vibration performance, realized floating ballast bed middle support stop maintain and replace at any time, therefore overcome the deficiency in original railway ballast livitation, structure is more reasonable, helps prolonging floating ballast bed application life.Based on this principle, the present invention can also be applied in and build on float floor or the equipment elasticity basis, when obtaining good buffering vibration isolating effect, can prolong the life cycle and the application life of floating struction, has broad prospect for its application.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the cross-sectional drawing of Fig. 1.
Fig. 3 is the local enlarged diagram of Fig. 2.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the easy-maintenance floating ballast bed jacking schematic diagram of the present invention.
Fig. 6 is the structural representation of the embodiment of the invention 2.
Fig. 7 is the structural representation of the embodiment of the invention 3.
The specific embodiment
Embodiment 1
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the present invention is easy-maintenance floating ballast bed, comprise float plate 1 and elastic vibration isolation device 2, elastic vibration isolation device 2 is arranged in the reservation through hole of the plate 1 of floating, support stop 3 is set on the inwall of through hole, the plate 1 of floating is supported on the elastic vibration isolation device 2 by support stop 3, is reserved with four blind holes on the concrete structure of the plate through-hole wall of floating, support stop 3 local insertions in the blind hole.Employed elastic vibration isolation device 2 is the inner helical steel springs vibration isolator that is provided with silicone oil liquid damping material in this example, and support stop is by the ordinary carbon steel material, through the galvanizing preservative treatment.
In order to protect the support stop blind hole, in the hole, fixedly install the lining of making by stainless steel material 4, can satisfy the life requirements in 100 years application life.Support stop 3 places lining 4.Lining 4 can just be preset at when building in the plate 1 of floating.In order to prevent support stop 3 occurred level plaies, integrated setting limiting plate 7 on lining utilizes securing member 8 that limiting plate 7 and support stop 3 are constrained in together.Being provided with between elastic vibration isolation device 2 and the basis rubs examines the very high mechanical brakeman of coefficient 6, and its friction factor can prevent the displacement of elastic vibration isolation device horizontal direction up to 1.5.For preventing that foreign matter from falling into the plate of floating and reserving in the through hole, above reserving through hole, also be provided with end cap 9.
Referring to Fig. 4, two top boards up and down and pad 5 that four support stops 3 are reserved the centre bore size that forms in the through hole and elastic vibration isolation device 2 at the plate 1 of floating are compatible, and shape is square.When jacking is installed, as shown in Figure 5, earlier from the top with elastic vibration isolation device 2 and pad 5 successively after reserve through hole and put into the support stop below, the special tool 20 that utilization is fixed on the rail 21 provides support a little for jack 24 work, the direct elasticity of compression vibration isolator 2 of jacking through hole that the piston of jack 24 is provided with by pad 5 centers is after the end face of pad 5 is lower than the bottom surface of support stop 3, elastic vibration isolation device 2 and pad 5 are rotated to an angle around vertical pivot, and support stop 3 forms dislocation with pad 5 and overlaps.As shown in Figure 5, if when the piston stroke deficiency of jack 24 satisfies the jacking desired height, can supply by cushion block 23 is set.With jack 24 pressure releases, after 2 resiliences of elastic vibration isolation device, pad 5 is pressed on the support stop 3, the plate 1 of then floating is bearing on the elastic vibration isolation device 2, float the elastic vibration isolation device 2 of plate 1 when abundant when support, and the plate 1 of floating can leave surface of base, fully by elastic vibration isolation device elastomeric bearing.Like this, by adjusting the gross thickness of pad, just can realize from top jacking height and the levelness that plate and adjustment float plate of floating.In the jacking process, can utilize the stress point of support stop, also other force structure can be set additionally as jacking.Spring in the elastic vibration isolation device and damping and the plate of floating constitute the vibrating isolation system that intrinsic frequency is lower, and vibrational energy that can absorbing structure is isolated the medium-high frequency dynamic loading that is delivered on the plate of floating, thereby realize the purpose of vibration and noise reducing.
Present embodiment is that example describes so that four support stops 3 to be set only, also can be provided with two in the practical application, more than three or four, support stop reservation blind hole is set on the plate 1 of floating accordingly get final product.Except that default blind hole, the different and concrete instructions for use difference of form according to support stop, also can be chosen in the directly default annular groove in position that needs to be provided with support stop on the plate of floating, the local insertion of support stop is arranged in the groove, also can realize same effect.Limiting plate 7 except that with lining 4 integrated setting, can also when floating plate, cast directly independently be preset in the plate of floating, the connected mode of limiting plate and support stop also has multiple, except that the employing securing member described in the present embodiment, methods such as alignment pin connection can also be adopted, support stop occurred level play can be prevented.In addition, utilize the support stop embossed surface or between support stop and lining technical measures such as relative set concaveconvex structure, increase support stop to move horizontally resistance, also can effectively prevent support stop occurred level play.
The easy-maintenance floating ballast bed employed elastic vibration isolation device of the present invention comprises various ways, except that the steel spring vibration isolator, can also adopt the isolation mounting of forms such as rubber shock absorber or air cushion shock absorber, wherein the flexible member of Cai Yonging can be dish spring or rubber-metal complex spring, also can be the rubber elastomeric material.Except that being provided with the silicone oil, other fluid damping materials such as modified bitumen can also be set in the elastic vibration isolation device, solid damping materials such as rubber also can be set.
This example only describes with the lining of stainless steel; in the practical application; lining can also wear-resistant by other, corrosion resistant metal or nonmetals constitute; as pottery etc.; also can be the high strength prefabricated component that high-grade concrete is made, the life-span of these materials all be higher than through spraying paint or the ordinary carbon steel material of galvanizing after handling, and the stiffener net perhaps is set around blind hole or groove; improve local strength, also can realize protecting the function of blind hole or groove
By removable support stop is set, the present invention easy-maintenance floating ballast bed thorough solved after support stop damages in the prior art can't maintain and replace a difficult problem, have very strong economy and practicality.The preferred resistant material of lining is made, be difficult for taking place corrosion, in case corrosion or wearing and tearing take place, also can take out replacing, that is to say in floating ballast bed system of the present invention, in the prior art easily the element of generation problem all to have adopted replaceable or more durable technical scheme to give perfect, therefore, help reducing maintenance cost, guarantee floating ballast bed application life.And know-why of the present invention can also be applied to build the places such as floor, equipment elasticity basis of floating, and when obtaining good buffering vibration isolating effect, can prolong the life cycle and the application life of floating struction, has high application value.
As shown in Figure 6, the difference with embodiment 1 is that be embedded with coupling sleeve 10 in the reservation through hole of the plate 1 of floating, the position of corresponding support stop 3 is provided with the through hole of stepping down on the coupling sleeve 10.The part is provided with the lining 4 that pottery is made in the block blind hole of support stop.For preventing that support stop 3 occurred levels from moving, welding is provided with limiting plate 7 on coupling sleeve 10, and is anti-skidding with alignment pin 8 location between limiting plate 7 and the support stop 3.For the ease of jacking, also be provided with jacking block 11 on the top of coupling sleeve 10, dust cap 9 is fixed on the jacking block 11.The elastic vibration isolation device 2 that is adopted in the present embodiment is the inner helical steel springs vibration isolator that is provided with the rubber solids damping material.
For preventing to relatively move between pad and the elastic vibration isolation device, between pad 5 and elastic vibration isolation device 2, mechanical brakeman 6 is set.Simultaneously, in order to prevent elastic vibration isolation device 2 slippage taking place on the basis, in elastic vibration isolation device bottom a plurality of taper projectioies 12 is set.Certainly, also can adopt stone bolt etc. to fix herein, also can realize same effect.
Utilize the jacking block to carry out process existing description in patent documentation before this of floating ballast bed jacking, do not describe at this.Lining can also be made of the prefabricated component that high-grade concrete is made except that being made by ceramic materials, its life-span be higher than spray paint or galvanizing after the ordinary carbon steel material, can satisfy the requirement of 100 years projected lives.
As shown in Figure 7, be with the difference of embodiment 1, the plate of floating is reserved on the through hole concrete inner wall bare blind hole is set, in order to prevent water, blind hole all is obliquely installed, support stop 3 is inserted in the blind hole and since support stop 3 mainly be subjected to force direction upwards, such incline structure can also prevent effectively that support stop from scurrying out from the hole.But can play in order to ensure support stop, after jacking is finished, above pad 5, in the middle of the support stop, limiting plate 13 is set, support stop is withstood.In addition, convenient for jacking, on the plate 1 of floating, preset jacking block 11.In order to strengthen the intensity of blind hole, around blind hole, utilize stainless steel rebar that stiffener net 30 is set, to satisfy the requirement of 100 years projected lives.If adopt plain bars as the stiffener net, between stiffener net and the support stop one deck concrete cover should be arranged, in order to avoid corrosion of steel bar.Pre-groove on the plate 1 of floating embeds reservation through hole top with dust cap 9, and is more attractive in appearance like this.
Certainly; jacking block 11 also can be according to the set-up mode of support stop; employing is default blind hole or groove in the reservation through hole of the plate of floating; later stage is inserted the mode of jacking block; described blind hole or groove also can adopt the local at least lining that is made of wear-resistant, corrosion resistant metal or nonmetals that is provided with, and can effectively protect hole or groove structure to be without prejudice like this.Adopting the jacking block of dismantled and assembled structure also to have an advantage is, because the jacking block only uses in the jacking process, there is no actual application value during floating ballast bed operate as normal, therefore after adopting dismantled and assembled structure, as long as with jacking block and blind hole on the plate of floating or groove standardization, just can realize the use repeatedly of jacking block, insert in the respective aperture or groove of the plate of floating when being jacking, jacking finishes the back and takes out, be used further to jacking next time, can save material greatly like this, help reducing product cost.
In addition, support limit stop and form of grooves can be varied, based on know-why of the present invention, also can on the reservation through-hole wall circumference of the plate of floating, continuous groove be set, then, utilize two or more than two can be combined into support stop circular or that part is circular and be plugged in the groove, also can play same effect.Except circumferential groove, axial notch can also be set.Support stop can also be the complicated shape that welded construction is made except bar-shaped, tabular, but should try one's best simply in its part of inserting blind hole or groove.When support stop and jacking block use simultaneously, can also insert in blind hole or the groove by common sparing.
Claims (15)
- One kind easy-maintenance floating ballast bed, comprise float plate and elastic vibration isolation device, the elastic vibration isolation device is arranged in the reservation through hole of the plate of floating, on the inwall of through hole support stop is set, the plate of floating is supported on the elastic vibration isolation device by support stop, it is characterized in that floating and reserve blind hole or groove on the concrete structure of plate through-hole wall, support stop is local to be inserted in blind hole or the groove.
- 2. according to claim 1 easy-maintenance floating ballast bed, it is characterized in that floating and the jacking block is set on the reservation through-hole wall of plate, or reserve through hole and be embedded with coupling sleeve, the jacking block is set on coupling sleeve top or the inwall, the position of the corresponding support stop of coupling sleeve is provided with through hole.
- 3. according to claim 2 easy-maintenance floating ballast bed, it is characterized in that the local plate of floating that inserts of jacking block reserves in the blind hole or groove of through-hole wall.
- 4. according to claim 1 or 3 described easy-maintenance floating ballast bed, it is characterized in that the local at least lining of making by long life material that is provided with on the sidewall of blind hole or groove, long life material comprises stainless steel, pottery or concrete precast element, or around blind hole or groove the stiffener net is set.
- 5. according to claim 1 or 3 described easy-maintenance floating ballast bed, it is characterized in that blind hole or groove level or be obliquely installed that the open side of blind hole or groove is lower when being obliquely installed.
- 6. according to claim 1 and 2 easy-maintenance floating ballast bed, between it is characterized in that floating plate and the support stop or/and float to be provided with between plate and the jacking block and prevent the relative stopping means that moves horizontally.
- 7. according to claim 6 easy-maintenance floating ballast bed, it is characterized in that stopping means is the default limiting plate on the plate of floating, link to each other by bolt or pin between limiting plate and support stop or the jacking block.
- 8. according to claim 6 easy-maintenance floating ballast bed, it is characterized in that stopping means is embossing or the concaveconvex structure that is provided with on support stop or the jacking block.
- 9. according to claim 4 easy-maintenance floating ballast bed, it is characterized in that between lining and the support stop or/and be provided with between lining and the jacking block and prevent the relative stopping means that moves horizontally.
- 10. according to claim 9 easy-maintenance floating ballast bed, it is characterized in that stopping means is a limiting plate default on the lining, link to each other by bolt or pin between limiting plate and support stop or the jacking block.
- 11. according to claim 9 easy-maintenance floating ballast bed, it is characterized in that stopping means be support stop with lining between and the concaveconvex structure of corresponding setting between jacking block and the lining.
- 12. according to claim 1 and 2 easy-maintenance floating ballast bed, it is characterized in that between the support stop being provided with and prevent the limiting plate that moves horizontally.
- 13. according to claim 1 and 2 easy-maintenance floating ballast bed, it is characterized in that between elastic vibration isolation device and the support stop pad being set, the central authorities of pad leave the jacking through hole.
- 14. it is according to claim 13 easy-maintenance floating ballast bed, the upper and lower surface that it is characterized in that the elastic vibration isolation device is provided with the coupling arrangement that prevents its horizontal shift, the top coupling arrangement connects with pad or support stop, the below coupling arrangement connects with the basis, and coupling arrangement is mechanical brakeman, bolt or concaveconvex structure.
- 15. according to claim 13 easy-maintenance floating ballast bed, it is characterized in that the big or small compatible of the upper and lower top board of the size of the central opening that support stop forms and shape and elastic vibration isolation device and pad in the plate through hole of floating, and the overlapping that can misplace.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100139634A CN101787667B (en) | 2009-01-22 | 2009-01-22 | Easy-maintenance floating ballast bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100139634A CN101787667B (en) | 2009-01-22 | 2009-01-22 | Easy-maintenance floating ballast bed |
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| CN101787667A CN101787667A (en) | 2010-07-28 |
| CN101787667B true CN101787667B (en) | 2011-12-28 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147365A (en) * | 2013-03-29 | 2013-06-12 | 无锡恒畅铁路轨枕有限公司 | High-strength concrete sleeper |
| CN103696332B (en) * | 2013-12-11 | 2016-01-06 | 易科路通轨道设备有限公司 | Vibration isolator outer sleeve |
| CN107014274A (en) * | 2016-01-28 | 2017-08-04 | 北京道尔道振动控制设备有限公司 | A kind of steel spring floating slab road bed monitoring device |
| CN105970750B (en) * | 2016-05-09 | 2017-12-22 | 广东工业大学 | Assembled city vibration isolation roadnet and its installation construction |
| CN110528338A (en) * | 2019-07-30 | 2019-12-03 | 深圳大学 | A kind of floating plate rail structure for being used to container based on external and built-in hydraulic type |
| CN110820437B (en) * | 2019-10-22 | 2021-07-09 | 上海同研城铁减振技术有限公司 | Outer sleeve of channel type vibration isolator |
| CN114197254A (en) * | 2021-11-03 | 2022-03-18 | 株洲时代新材料科技股份有限公司 | Track shock absorber |
| CN114059580B (en) * | 2021-11-08 | 2023-06-20 | 北京九州一轨环境科技股份有限公司 | Equipment vibration reduction horizontal limiter and construction method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2421312Y (en) * | 1999-11-29 | 2001-02-28 | 铁道部鞍山工务器材厂 | Preburied plastic sleeve and screw spike for concrete sleeper |
| CN1707026A (en) * | 2004-07-23 | 2005-12-14 | 尹学军 | Floating road bed |
-
2009
- 2009-01-22 CN CN2009100139634A patent/CN101787667B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2421312Y (en) * | 1999-11-29 | 2001-02-28 | 铁道部鞍山工务器材厂 | Preburied plastic sleeve and screw spike for concrete sleeper |
| CN1707026A (en) * | 2004-07-23 | 2005-12-14 | 尹学军 | Floating road bed |
Non-Patent Citations (3)
| Title |
|---|
| JP特开平8-120601A 1996.05.14 |
| JP特开平8-277595A 1996.10.22 |
| JP特开平9-78740A 1997.03.25 |
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