CN208685351U - Railroad track rubber shock-absorbing structure and Rubber shock-absorbing pad - Google Patents
Railroad track rubber shock-absorbing structure and Rubber shock-absorbing pad Download PDFInfo
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- CN208685351U CN208685351U CN201821241881.6U CN201821241881U CN208685351U CN 208685351 U CN208685351 U CN 208685351U CN 201821241881 U CN201821241881 U CN 201821241881U CN 208685351 U CN208685351 U CN 208685351U
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Abstract
Railroad track rubber shock-absorbing structure, the tie prefabricated components including cement substrate and above cement substrate, and the Rubber shock-absorbing pad between the cement substrate and the tie prefabricated components；The Rubber shock-absorbing pad is from top to bottom followed successively by trapezoidal rubber equalizing and buffering layer, the first fiber support net, the first pressure-bearing rigidity damping conductor glue-line, the second fiber support net, the second pressure-bearing rigidity damping conductor glue-line, third fiber support net, third pressure-bearing rigidity damping conductor glue-line, the 4th fiber support net and grid frame adhesive layer, passes through sulfuration adhesion between each layer；One group of trapezoidal item is uniformly provided on the trapezoidal rubber equalizing and buffering layer.According to the railroad track rubber shock-absorbing structure construction railway of the utility model, railroad ties levelness is high, and lateral, longitudinal direction and vertical vibration are all lower in use process, meanwhile, so that noise is greatly reduced.
Description
Technical field
The utility model relates to railway technologies, and in particular to a kind of railroad track rubber shock-absorbing structure and a kind of rubber
Resilient cushion.
Background technique
Rubber is that one kind can be restored rapidly to deform and have elastomeric high molecular material under large deformation, rich at room temperature
Elasticity can generate larger deformation under the external force of very little, remove resilient after external force.Rubber product is answered extensively
For all aspects of industry or life.
Rail traffic (railway transportation) is a kind of land transportation mode, with locomotive traction rail vehicle in two parallel iron
It is travelled on rail.According to mid-long term railway network plan, the year two thousand twenty is arrived, the length of railroad lines in service is up to 150,000 kilometers or more.Control rail
Road traffic noise and vibration are to improve the important topic of passenger comfort and environmental protection.A large number of studies show that track structure is
An important factor for leading to vibration and noise.In order to control vibration and noise, in the prior art, it will usually which rubber is set below rail
Rubber cushion plate.For example, Chinese patent CN203836046U discloses a kind of novel high-speed rail shock-absorption backing plate, it successively include being padded outside first
Layer, the first clamping layer, central suspension layer, the second clamping layer and the second outer bed course；First outer bed course and the second outer bed course are poly-
Urethane plate, with a thickness of 5mm；First clamping layer and the second clamping layer are polypropylene board, with a thickness of 10mm；Central suspension layer is to subtract
Rubber slab is shaken, with a thickness of 10mm；Two surfaces of central suspension layer are equidistantly provided with the latch of protrusion；First clamping layer and
Two clamping layers are equipped with and the one-to-one groove of the latch on one side close to central suspension layer.But existing railway rubber
Backing plate using effect is still not ideal enough, causes railroad ties to there is a problem of levelness unevenness, and railroad ties are in use process
In be easy to happen transverse direction, longitudinal direction and vertical vibration.
Summary of the invention
A kind of railroad track rubber shock-absorbing structure that in order to overcome the deficiencies of the prior art, the utility model provides.According to
The railroad track rubber shock-absorbing structure construction railway of the utility model, railroad ties levelness is high, and lateral, vertical in use process
To and vertical vibration it is all lower, meanwhile, so that noise is greatly reduced.Corresponding, the utility model additionally provides a kind of iron
The Rubber shock-absorbing pad of rail road damping.
For shock-damping structure, the technical solution of the utility model is: railroad track rubber shock-absorbing structure, including cement substrate
With the tie prefabricated components being set to above cement substrate, and between the cement substrate and the tie prefabricated components
Rubber shock-absorbing pad；The Rubber shock-absorbing pad is from top to bottom followed successively by trapezoidal rubber equalizing and buffering layer, the first fiber support net, first
Pressure-bearing rigidity damping conductor glue-line, the second fiber support net, the second pressure-bearing rigidity damping conductor glue-line, third fiber support net, third
Pressure-bearing rigidity damping conductor glue-line, the 4th fiber support net and grid frame adhesive layer pass through sulfuration adhesion between each layer；The ladder
One group of trapezoidal item is uniformly provided on shape rubber equalizing and buffering layer.
Compared with prior art, the railroad track rubber shock-absorbing structure of the utility model has completely new construction, trapezoidal rubber
Under the pressure effect of tie prefabricated components adaptive deformation occurs for glue equalizing and buffering layer, keeps the holding of sleeper prefabricated components horizontal,
Grid frame adhesive layer, pressure-bearing rigidity damping conductor glue-line and fiber support net synergistic effect absorb caused when train passes through
Vibration, thus slow down the various dimensions vibration of sleeper prefabricated components and cement substrate horizontally and vertically, meanwhile, make
Noise is obtained to be greatly reduced.
As optimization, it is highly 3~20mm that the section of the trapezoidal item, which is isosceles trapezoid, and bottom length is 30~80mm；
The spacing of adjacent two trapezoidal item is 40~100mm；Experimental study discovery, at this point, the service life of Rubber shock-absorbing pad is relatively long.
As optimization, the first pressure-bearing rigidity damping conductor glue-line, the second pressure-bearing rigidity damping conductor glue-line and third pressure-bearing
Rigid damping conductor glue-line with a thickness of 17~25mm.
As optimization, the first fiber support net, the second fiber support net, third fiber support net and the 4th fiber branch
Support net is mutually perpendicular to be interwoven by polyester and steel wire respectively as warp and weft, through close and filling density be in 1~5mm it
Between, line footpath is between 0.3~0.8mm.Fiber support net plays the role of fixed each yielding rubber layer deflection, by hair
Bright people's long-felt, it is found that select above-mentioned specific material, bonded through close, filling density and line footpath, fiber support net and the vulcanization of rubber
Intensity it is higher, and the railroad track rubber shock-absorbing structure of the utility model generate shock-absorbing effect it is also preferable.
As optimization, the grid frame adhesive layer with a thickness of 8~20mm.
For Rubber shock-absorbing pad, the technical solution of the utility model is: in railroad track rubber shock-absorbing structure as the aforementioned
It is described.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the railroad track rubber shock-absorbing structure of the utility model；
Fig. 2 is the structural schematic diagram of A circular portion in Fig. 1；
Fig. 3 is the structural schematic diagram of the railroad track Rubber shock-absorbing pad of the utility model；
Fig. 4 and Fig. 5 is a kind of grid frame adhesive layer concrete structure schematic diagram in the horizontal direction respectively.
The label in accompanying drawing is: 1- cement substrate, 2- tie prefabricated components, 3- Rubber shock-absorbing pad, the trapezoidal rubber balance of 31-
Buffer layer, the trapezoidal item of 311-, 32- the first fiber support net, 33- the first pressure-bearing rigidity damping conductor glue-line, the second fiber support of 34-
Net, 35- the second pressure-bearing rigidity damping conductor glue-line, 36- third fiber support net, 37- third pressure-bearing rigidity damping conductor glue-line, 38-
4th fiber support net, 39- grid frame adhesive layer, 4- rail.
Specific embodiment
(embodiment) is further described the utility model With reference to embodiment, but is not intended as to this
The foundation of utility model limitation.
In the utility model, fiber support net can by one of nylon, polyester or steel wire material weave form or by
Above-mentioned material is blended.It is preferred that being blended by polyester and steel wire, i.e., warp and weft are respectively polyester and steel wire, and research shows,
At this point, the effect of fixed rubber shock-absorbing deflection is best.
Embodiment:
Referring to Fig. 1 to Fig. 4, railroad track rubber shock-absorbing structure, including cement substrate 1 and above cement substrate 1
Tie prefabricated components 2, and the Rubber shock-absorbing pad 3 between the cement substrate 1 and the tie prefabricated components 2；It is described
Rubber shock-absorbing pad 3 is from top to bottom followed successively by trapezoidal rubber equalizing and buffering layer 31, the first fiber support net 32, the first pressure-bearing and rigidly hinders
Buddhist nun's core rubber layer 33, the second fiber support net 34, the second pressure-bearing rigidity damping conductor glue-line 35, third fiber support net 36, third are held
Rigid damping conductor glue-line 37, the 4th fiber support net 38 and grid frame adhesive layer 39 are pressed, passes through sulfuration adhesion between each layer；Institute
It states and is uniformly provided with one group of trapezoidal item 311 on trapezoidal rubber equalizing and buffering layer 31.
The section of the trapezoidal item 311 is isosceles trapezoid, is highly 20mm, and bottom length is 50mm；Adjacent two trapezoidal item
211 spacing is 60mm (i.e. the spacing of the axis of symmetry of two isosceles trapezoids).
The first pressure-bearing rigidity damping conductor glue-line 33, the second pressure-bearing rigidity damping conductor glue-line 35 and third pressure-bearing rigidly hinder
Buddhist nun's core rubber layer 37 is with a thickness of 20mm.
First fiber support net 32, the second fiber support net 34, third fiber support net 36 and the 4th fiber support net 38
It is mutually perpendicular to be interwoven respectively as warp and weft by polyester and steel wire, is 3mm through close and filling density, line footpath is
0.5mm.(in the utility model, through close the distance between the center line for referring to adjacent two warp, filling density refers in adjacent two weft
The distance between heart line)
The material prescription of each rubber layer of the Rubber shock-absorbing pad of the utility model can be such that
The material prescription of trapezoidal rubber equalizing and buffering layer 31 is by weight are as follows: and 20~30 parts of trans-polyisoprene, chlorine
30~70 parts of sulfonated polyethylene, 20~30 parts of high-cis butadiene, 1.5~6 parts of magnesia, 1~5 part of anti-aging agent, promotor 1~
5 parts, 1~3 part of stearic acid, carbon black N33010~50 part, carbon black N77010~50 part, carbon black N99010~50 part, softening agent 5~
15 parts, 3~10 parts of zinc oxide, 1~5 part and 1~3 part of vulcanizing agent of lead oxide.
First pressure-bearing rigidity damping conductor glue-line 33, the second pressure-bearing rigidity damping conductor glue-line 35 and third pressure-bearing rigidity damping conductor
The material prescription of glue-line 37 is by weight are as follows: and 10~20 parts of trans-polyisoprene, 30~50 parts of chlorosulfonated polyethylene, Gao Shun
30~60 parts of formula butadiene, 2~6 parts of magnesia, 1~5 part of anti-aging agent, 1~5 part of promotor, 1~3 part of stearic acid, staple fiber 5
~20 parts, carbon black N33030~50 part, carbon black N77020~40 part, 1~10 part of softening agent, 3~6 parts of zinc oxide, lead oxide 1~
5 parts, 1~5 part and 1~3 part of vulcanizing agent of adhesive.
The material prescription of the grid frame adhesive layer 39 is by weight are as follows: and 10~20 parts of trans-polyisoprene, chlorine
10~20 parts of sulfonated polyethylene, 60~80 parts of natural rubber, 1~5 part of magnesia, 1~3 part of anti-aging agent, 1~3 part of promotor, firmly
1~3 part of resin acid, carbon black N33010~50 part, carbon black N77020~50 part, 7~17 parts of softening agent, 3~8 parts of zinc oxide, oxidation
0.5~3 part of lead, 1~5 part and 1~3 part of vulcanizing agent of adhesive.
The Rubber shock-absorbing pad of the utility model can be made as follows:
(1) trapezoidal rubber equalizing and buffering layer preparation
One section of mixing: by trans-polyisoprene, chlorosulfonated polyethylene, high-cis butadiene and magnesia, anti-aging agent, rush
Mixer is added into agent, stearic acid, pressurization is kneaded 120-150 seconds, and temperature is 65 DEG C, adds carbon black N330, carbon black N770, charcoal
Black N990, softening agent, it is 90-100 DEG C that pressurization, which is kneaded to temperature, and dumping slice is cooling, obtains one section of rubber compound, it is small to park 24
When.
Two-stage mixing: putting into one section of rubber compound, zinc oxide, lead oxide and vulcanizing agent into mixer, and low speed pressurization is kneaded
It is 80-90 DEG C to temperature, dumping slice is cooling, obtains the trapezoidal glue of two-stage mixing, parks 24 hours.
Trapezoidal rubber equalizing and buffering layer squeezes out: installing trapezoidal rubber equalizing and buffering layer mouth mold on cross-head, preheats
Extruder.The two-stage mixing glue of trapezoidal rubber equalizing and buffering layer is fed into extruder, the trapezoidal rubber equalizing and buffering layer of extrusion is cold
But it is used after being formed.
(2) prepared by grid frame adhesive layer
One section of mixing: by trans-polyisoprene, chlorosulfonated polyethylene, natural rubber and magnesia, anti-aging agent, promotion
Mixer is added in agent, stearic acid, and pressurization is kneaded 120-150 seconds, and temperature is 65 DEG C, adds carbon black N330, carbon black N770, softening
Agent, it is 90-100 DEG C that pressurization, which is kneaded to temperature, and dumping slice is cooling, obtains one section of rubber compound, parks 24 hours.
Two-stage mixing: one section of rubber compound, zinc oxide, lead oxide, adhesive and vulcanizing agent, low speed are put into mixer and is added
It is 80-90 DEG C that pressure, which is kneaded to temperature, and dumping slice is cooling, obtains two-stage mixing adhesive glue, parks 24 hours.
The preparation of grid frame adhesive layer: preheating prepares to prolong machine and for two-stage mixing adhesive glue being fed and is supplied on rubber extruding machine
Rubber extruding machine after extruder plasticizing heating, for glue to calender, completes grid frame adhesive layer on calender and prepares (grid
Skeleton adhesive layer structure in the horizontal direction can be longitude and latitude pilotaxitic texture as shown in Figure 4, be also possible to bee as shown in Figure 5
Nest shape structure), it is used after cooling.
(4) prepared by pressure-bearing rigidity damping conductor glue-line
One section of mixing: by trans-polyisoprene, chlorosulfonated polyethylene, high-cis butadiene and magnesia, anti-aging agent, rush
Mixer is added into agent, stearic acid, staple fiber, pressurization is kneaded 120-150 seconds, and temperature is 65 DEG C, adds carbon black N330, carbon black
N770, softening agent, it is 90-100 DEG C that pressurization, which is kneaded to temperature, and dumping slice is cooling, obtains one section of rubber compound, parks 24 hours.
Two-stage mixing: one section of rubber compound, zinc oxide, lead oxide, adhesive and vulcanizing agent, low speed are put into mixer and is added
It is 80-90 DEG C that pressure, which is kneaded to temperature, and dumping slice is cooling, obtains two-stage mixing damping core rubber, parks 24 hours.
Pressure-bearing rigidity damping conductor glue-line tabletting: preheating prepares to prolong machine and on rubber extruding machine, two sections of damping core rubbers are fed
, for glue to calender, multilayer pressure-bearing rigidity damping conductor glue-line is completed on calender after extruder plasticizing heating for rubber extruding machine
Tabletting uses after cooling.
(4) resilient cushion forms
By grid frame adhesive layer, pressure-bearing rigidity damping conductor glue-line, trapezoidal rubber equalizing and buffering layer and fiber support
Net together according to the molding of the patch of structure combination layer shown in attached drawing constitutes the multilayered structure semi-finished product of resilient cushion.
(5) resilient cushion vulcanizes
Curing temperature is set, resilient cushion sulfurizing mould is installed, preheating vulcanization board puts the molding semi-finished product of resilient cushion
Enter in vulcanizer mold, molds press cure, by the vulcanization time vulcanization forming of setting, cooling and shaping after demoulding, shape after inspection
At final railroad track Rubber shock-absorbing pad finished product.
Referring to figs. 2 and 3, rail 4 is mounted on tie prefabricated components 2.Trapezoidal rubber equalizing and buffering layer 31 is by tie
When the pressure of prefabricated components 2, different distortion amount is adaptively made, so that sleeper prefabricated components is kept higher level degree, meets railway
Installation requirement.When train passes through, each rubber layer synergistic effect effectively absorbs vibration, slows down tie prefabricated components 2 and cement base
The various dimensions vibration of seat 1 horizontally and vertically.
The above-mentioned generality to utility model involved in the application is described and should not be managed the description of its specific embodiment
It solves to be the limitation constituted to the utility model technical solution.Those skilled in the art, can be with according to disclosure herein
Under the premise of without prejudice to related utility model constituent element, to the disclosure in above-mentioned general description or/and embodiment
Technical characteristic is increased, reduced or is combined, and the other technical solutions belonged within the application protection scope are formed.
Claims (5)
1. railroad track rubber shock-absorbing structure, it is characterised in that: including cement substrate (1) and be set to above cement substrate (1)
Tie prefabricated components (2), and the Rubber shock-absorbing pad being set between the cement substrate (1) and the tie prefabricated components (2)
(3)；The Rubber shock-absorbing pad (3) be from top to bottom followed successively by trapezoidal rubber equalizing and buffering layer (31), the first fiber support net (32),
First pressure-bearing rigidity damping conductor glue-line (33), the second fiber support net (34), the second pressure-bearing rigidity damping conductor glue-line (35), third
Fiber support net (36), third pressure-bearing rigidity damping conductor glue-line (37), the 4th fiber support net (38) and grid frame adhesive layer
(39), pass through sulfuration adhesion between each layer；One group of trapezoidal item is uniformly provided on the trapezoidal rubber equalizing and buffering layer (31)
(311)。
2. railroad track rubber shock-absorbing structure according to claim 1, it is characterised in that: the trapezoidal item (311) is cut
Face is isosceles trapezoid, is highly 3~20mm, and bottom length is 30~80mm；The spacing of adjacent two trapezoidal item (311) be 40~
100mm。
3. railroad track rubber shock-absorbing structure according to claim 1, it is characterised in that: the pressure-bearing rigidly damps core rubber
Layer (3) is with a thickness of 17~25mm.
4. railroad track rubber shock-absorbing structure according to claim 1, it is characterised in that: the first fiber support net
(32), the second fiber support net (34), third fiber support net (36) and the 4th fiber support net (38) are by polyester and steel wire point
Not Zuo Wei warp and weft be mutually perpendicular to be interwoven, be between 1~5mm through close and filling density, line footpath is in 0.3~
Between 0.8mm.
5. railroad track rubber shock-absorbing structure according to claim 1, it is characterised in that: the grid frame adhesive layer
(1) with a thickness of 8~20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821241881.6U CN208685351U (en) | 2018-08-02 | 2018-08-02 | Railroad track rubber shock-absorbing structure and Rubber shock-absorbing pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821241881.6U CN208685351U (en) | 2018-08-02 | 2018-08-02 | Railroad track rubber shock-absorbing structure and Rubber shock-absorbing pad |
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| Publication Number | Publication Date |
|---|---|
| CN208685351U true CN208685351U (en) | 2019-04-02 |
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| CN201821241881.6U Active CN208685351U (en) | 2018-08-02 | 2018-08-02 | Railroad track rubber shock-absorbing structure and Rubber shock-absorbing pad |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108589435A (en) * | 2018-08-02 | 2018-09-28 | 浙江三维橡胶制品股份有限公司 | Railroad track rubber shock-absorbing structure and rubber |
-
2018
- 2018-08-02 CN CN201821241881.6U patent/CN208685351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108589435A (en) * | 2018-08-02 | 2018-09-28 | 浙江三维橡胶制品股份有限公司 | Railroad track rubber shock-absorbing structure and rubber |
| CN108589435B (en) * | 2018-08-02 | 2024-02-27 | 三维控股集团股份有限公司 | Rubber shock-absorbing structure and rubber for railway track |
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Address after: 317100 No. 518, Guangming Middle Road, Haiyou street, Sanmen County, Taizhou City, Zhejiang Province Patentee after: Sanwei Holding Group Co.,Ltd. Address before: Xiakeng village, Haiyou street, Sanmen County, Taizhou City, Zhejiang Province 317100 Patentee before: ZHEJIANG SANWEI RUBBER ITEM Co.,Ltd. |