CN208559368U - A kind of locomotive rubber metal pad improving anti-fatigue performance - Google Patents
A kind of locomotive rubber metal pad improving anti-fatigue performance Download PDFInfo
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- CN208559368U CN208559368U CN201820914224.7U CN201820914224U CN208559368U CN 208559368 U CN208559368 U CN 208559368U CN 201820914224 U CN201820914224 U CN 201820914224U CN 208559368 U CN208559368 U CN 208559368U
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Abstract
A kind of locomotive rubber metal pad improving anti-fatigue performance, including upper padding plate, lower bolster, metal partion (metp) and rubber layer；Metal partion (metp) and rubber layer are between upper padding plate and lower bolster, and according to one layer of rubber layer, one layer of metal layer is staggered, form the rubber-metal rubber metal pad of multilayer rubber and metal composite；It is characterized in that the rubber layer with a thickness of not uniform thickness, and it is also anisodiametric rubber layer that the diameter of rubber layer, which is,.The utility model uses with a thickness of not uniform thickness, and it is also anisodiametric rubber layer that diameter, which is, can effectively change the stress situation of each layer rubber in this way, so that each layer of rubber ply stress is substantially uniform, so as to improve the strained situation of end layers.The fatigue behaviour of entire rubber metal pad can be greatly improved in this way, make rubber in transverse movement, end layers intensity is higher, deformation is smaller, and strain is transferred to middle layer, reduces the stress of end layers, the phenomenon that improve whole anti-fatigue performance, end edge rubber layer is effectively prevent to tear.
Description
Technical field
The utility model relates to a kind of elastic damping method and devices of two systems to locomotive, refer in particular to a kind of raising machine
Vehicle rubber metal pad anti-fatigue performance, the elastic damping method and device for preventing rubber metal pad rubber from tearing, the rubber metal pad bullet of this kind of locomotive
Property oscillation damping method and device can greatly improve locomotive rubber metal pad fatigue resistance, durability, prevent rubber metal pad rubber layer from tearing
Split phenomenon；Belong to locomotive elastic damping technical field.
Background technique
Rubber metal pad side bearing is widely used in the secondary suspension of locomotive, is the attachment device between locomotive car body and bogie,
Effect be make locomotive top uniform quality be assigned on bogie with guarantee axis weight evenly distribute, the normal transmitting of cross force,
And so that bogie is turned round when locomotive crosses curve relative to car body, mitigate guideway irregularity to the impact of locomotive and guarantee machine
Vehicle has preferable running stability and stability.Therefore, rigidity property and fatigue behaviour to the dynamic performance of locomotive and
Reliability has a major impact.
Rubber metal pad is divided by its shape mainly 2 kinds, rectangular rubber heap (as being side bearing rubber metal pad for DF8B bis-) and circle
Rubber metal pad comes out a kind of spherical structure round rubber heap improved on round rubber heap again recently；Round rubber heap is application
Most wide form, structure is as shown in Figure 1；It can learn that the fatigue condition of rubber metal pad side bearing is disliked very much from the actual conditions of application
Bad, vertical load is big (maximum load has reached 184 k N), and shear displacemant is big (maximum displacement has reached ± 65 mm), in compression shear
Under combined load, the stress of rubber layer considerably beyond rubber can tolerance range, therefore rubber metal pad is easy in use
There is fatigue phenomenon；Especially in the process of running, the phenomenon that being easy to appear rubber metal tearing, it is necessary to be subject to this
It improves.
The patent literature report for not finding there is with the utility model same technique by patent retrieval, has with the utility model
The patent of certain relationship mainly has following:
1, Patent No. CN201710454346.2, a kind of entitled " two systems that conical rubber pile is combined with permanent magnetic spring
Resilient suspension vibration absorber ", applicant are as follows: the utility application of Southwest Jiaotong University, the patent application disclose one
Planting conical rubber pile is combined with permanent magnetic spring two is resilient suspension vibration absorber, is arranged in railway vehicle bogie frame and vehicle
Between body (or bolster), for transmitting the vibration of the three directional loads between car body (or bolster) and framework and Vehicular system of decaying.
The device includes permanent magnetic spring and conical rubber pile.The utility model permanent magnetic spring upper end vertical series cone rubber pile structure,
Make system obtain needed for longitudinally, laterally and vertical stiffness.Wherein longitudinal and transverse direction rigidity is mainly provided by conical rubber pile,
Vertical stiffness is then mainly provided by permanent magnetic spring.The specific magnetic Circuit Design of permanent magnetic spring can provide anti-vibration performance excellent non-thread
Property vertical stiffness.
2, Patent No. CN201420455519.4, entitled " rubber metal pad used for rail vehicle ", applicant are as follows: Zhuzhou epoch
The utility model patent of new material Science and Technology Co., Ltd., which disclose a kind of rubber metal pads used for rail vehicle, comprising: top
Plate, partition, rubber layer and bottom plate, rubber metal pad are vulcanized by top plate, partition, bottom plate and rubber layer, top plate, partition and bottom plate it
Between be rubber layer, it is characterised in that the contact of the rubber layer and the top plate, the partition and the bottom plate
The shape of the longitudinal section in face be raise upward it is trapezoidal.
By carefully analyzing to these above-mentioned patents, although these patents are directed to rubber metal pad, it was also proposed that some
Improved technology scheme, but by carefully analyzing, these rubber metal pads proposed and preparation method thereof, all still without the existing rubber of improvement
The fatigue resistance of Jiao Dui still needs further to be studied so the phenomenon that tearing in use still will appear.
Utility model content
The purpose of this utility model is that aiming at the problem that rubber metal pad of two system of rail traffic is easy to appear rubber tearing,
It proposes a kind of method that can effectively improve rubber metal pad fatigue resistance and its product, prevents the rubber layer of rubber metal pad in use
The phenomenon that tearing meets the needs of locomotive scene uses.
In order to reach this purpose, the utility model provides a kind of locomotive rubber metal pad for improving anti-fatigue performance, including
Upper padding plate, lower bolster, metal partion (metp) and rubber layer；Metal partion (metp) and rubber layer are between upper padding plate and lower bolster, according to one layer
Rubber layer, one layer of metal layer is staggered, forms the rubber-metal rubber metal pad of multilayer rubber and metal composite；It is characterized in that
The rubber layer with a thickness of not uniform thickness, and it is also anisodiametric rubber layer that the diameter of rubber layer, which is,.
Further, the rubber layer is according to the finite element analysis of rubber metal pad stress, by rubber with a thickness of not uniform thickness
The rubber layer of Jiao Dui is using not equal thickness structure, the stress for by the rubber layer of not equal thickness each layer of rubber being born
It is more uniform.
Further, the thickness of the rubber layer is the layer on the basis of middle layer, and intermediate layer thickness is most thick, by middle layer
The thickness of rubber layer is gradually thinned respectively toward up or down, on side or upper and lower rubber layer thickness is most thin.
It is further, described that from middle layer toward up or down, gradually the thickness of thinned rubber layer is according to middle layer rubber respectively
Glue-line is 1, and the rubber layer close to middle layer reduces thickness 0.1-0.3, then outer one layer of rubber layer with respect to internal layer with respect to middle layer
Rubber layer reduces 0.1-0.3 again, and so on, until outermost layer rubber layer is successively decreased with this, reduce rubber layer thickness, to improve end
The strained situation of portion's layer.
Further, the anisodiametric rubber layer is using anisodiametric rubber layer, and the rubber of middle layer
Layer diameter is minimum, and rubber layer diameter more outward is bigger；
Further, it is described use anisodiametric rubber layer be on the basis of the diameter of middle layer rubber layer, it is more past
The diameter of outer or upper and lower rubber layer is bigger, so that the line on entire rubber metal pad rubber layer inner arc top forms an arc to concave
Line improves the anti-fatigue performance of rubber metal pad by adjusting arc curvature of a curve.
Further, the camber line of the indent is interior concave arc symmetrical above and below.
Further, the camber line of the indent is concave arc in upper and lower asymmetry.
Utility model has the advantages that
Existing locomotive rubber metal pad occurs according to applicant the finite element analysis of rubber layer tearing phenomenon, actually locomotive
It is placed on bogie with rubber metal pad, bearing body weight.Simultaneously to provide horizontal direction displacement when motor sport, such as car body mistake
When bend, the horizontal movement of car body and bogie is provided by the rubber metal pad, in addition, equal when other movements such as locomotive brake, acceleration
Horizontal applied force can be generated to rubber metal pad.These active forces are mainly shown as that vertical, horizontal, torsion etc. is made to rubber metal pad product
With.Since locomotive applying working condition is more severe, for current product using 1-3, there is top and bottom end
The case where rubber layer cracks；Finite element analysis passed through to this, discovery locomotive deposits between the different layers that ess-strain is not with rubber metal pad
Uniform problem, and the ess-strain for being proximate to end face is maximum, therefore main improvement direction is to improve the rubber of end layer by layer
Glue stress condition.
The utility model uses with a thickness of not uniform thickness, and it is also anisodiametric rubber layer that diameter, which is, so that rubber metal pad is whole
Body structure integrally becomes similar hourglass-shaped, by increasing upper and lower level diameter, the mode of end layers thickness is thinned, it is rigid to improve the layer
Degree, so as to improve the ply stress strained situation.The stress situation that each layer rubber can effectively be changed in this way, so that each layer of rubber
Glue-line stress is substantially uniform, so as to improve the strained situation of end layers.The fatigability of entire rubber metal pad can be greatly improved in this way
Can, make rubber in transverse movement, end layers intensity is higher, and deformation is smaller, and strain is transferred to middle layer, reduces end layers
Stress, thus the phenomenon that improving whole anti-fatigue performance, end edge rubber layer is effectively prevent to tear.
Detailed description of the invention
Fig. 1 is existing locomotive rubber metal pad structural schematic diagram；
Fig. 2 is one embodiment structural schematic diagram of the utility model；
Fig. 3 is the rubber layer moulding surface structure schematic diagram of the utility model.
Specific embodiment
It is further described the utility model in the following with reference to the drawings and specific embodiments.
Embodiment one
By attached drawing 2 and 3 as can be seen that the utility model relates to a kind of locomotive rubber metal pads, including upper padding plate 1, lower bolster
2, metal partion (metp) 3 and rubber layer 4；Metal partion (metp) 3 and rubber layer 4 are between upper padding plate 1 and lower bolster 2, according to one layer of rubber layer
4, one layer of metal partion (metp) 3 is staggered, forms the rubber-metal rubber metal pad of multilayer rubber and metal composite；It is characterized in that institute
The rubber layer 4 stated with a thickness of not uniform thickness, and it is also anisodiametric rubber layer that the diameter of rubber layer 4, which is,.
The thickness of the rubber layer 4 is the layer on the basis of middle layer 5, and 5 thickness of middle layer is most thick, up by middle layer 5
Or the thickness of rubber layer is gradually thinned in lower difference, on side or upper and lower 6 thickness of rubber layer is most thin.
It is 1 that the thickness that rubber layer is gradually thinned respectively from middle layer 5 toward up or down, which is according to middle layer rubber layer,
Reduce thickness 0.1-0.2 thickness with respect to middle layer 5 close to rubber layer 7 close to middle layer 6, then outer one layer of rubber layer 8 is relatively
Internal layer rubber layer reduces 0.1-0.2 thickness again, and so on, until outermost layer rubber layer is successively decreased with this, reduce rubber layer thickness,
To improve the strained situation of end layers.
The anisodiametric rubber layer is to use anisodiametric rubber layer, and the rubber layer diameter of middle layer 5 is most
Small, rubber layer diameter more outward is bigger；The anisodiametric rubber layer that uses is to be with the diameter of middle layer rubber layer
The diameter of benchmark, rubber layer more outward or up and down is bigger, so that the line on entire rubber metal pad rubber layer inner arc vertex 9 forms one
The camber line 10 that item concaves, and be interior concave arc symmetrical above and below, the fatigue resistance of rubber metal pad is improved by adjusting arc curvature of a curve
Energy.The camber line is conic section camber line.
Embodiment two
For the basic structure of embodiment two as embodiment one, the mode only made is different, is a kind of locomotive rubber
Jiao Dui, including upper padding plate, lower bolster, metal partion (metp) and rubber layer；Metal partion (metp) and rubber layer between upper padding plate and lower bolster,
According to one layer of rubber layer, one layer of metal layer is staggered, forms the rubber-metal rubber metal pad of multilayer rubber and metal composite；It is special
Point is, the rubber layer with a thickness of not uniform thickness, and it is also anisodiametric rubber layer that the diameter of rubber layer, which is,.
Further, the thickness of the rubber layer is the layer on the basis of middle layer, and intermediate layer thickness is most thick, by middle layer
The thickness of rubber layer is gradually thinned respectively toward up or down, on side or upper and lower rubber layer thickness is most thin.
It is further, described that from middle layer toward up or down, gradually the thickness of thinned rubber layer is according to middle layer rubber respectively
Glue-line is 1, and the rubber layer close to middle layer is opposite with respect to middle layer reduction thickness 0.2-0.3 thickness, then outer one layer of rubber layer
Internal layer rubber layer reduces 0.2-0.3 thickness again, and so on, until outermost layer rubber layer is successively decreased with this, reduce rubber layer thickness,
To improve the strained situation of end layers.
Further, the anisodiametric rubber layer is using anisodiametric rubber layer, and the rubber of middle layer
Layer diameter is minimum, and rubber layer diameter more outward is bigger；The anisodiametric rubber layer that uses is with middle layer rubber layer
Diameter on the basis of, the diameter of rubber layer more outward or up and down is bigger, so that the line on entire rubber metal pad rubber layer inner arc top
A camber line to concave is formed, and is concave arc in asymmetry up and down, improves the anti-of rubber metal pad by adjusting arc curvature of a curve
Fatigue behaviour.
Above-mentioned listed embodiment, only carries out clear, complete description to the technical solution of the utility model in conjunction with attached drawing；
Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on this reality
It is obtained by those of ordinary skill in the art without making creative efforts all other with the embodiment in novel
Embodiment is fallen within the protection scope of the utility model.
Utility model has the advantages that
Existing locomotive rubber metal pad occurs according to applicant the finite element analysis of rubber layer tearing phenomenon, actually locomotive
It is placed on bogie with rubber metal pad, bearing body weight.Simultaneously to provide horizontal direction displacement when motor sport, such as car body mistake
When bend, the horizontal movement of car body and bogie is provided by the rubber metal pad, in addition, equal when other movements such as locomotive brake, acceleration
Horizontal applied force can be generated to rubber metal pad.These active forces are mainly shown as that vertical, horizontal, torsion etc. is made to rubber metal pad product
With.Since locomotive applying working condition is more severe, for current product using 1-3, there is top and bottom end
The case where rubber layer cracks；Finite element analysis passed through to this, discovery locomotive deposits between the different layers that ess-strain is not with rubber metal pad
Uniform problem, and the ess-strain for being proximate to end face is maximum, therefore main improvement direction is to improve the rubber of end layer by layer
Glue stress condition.
The utility model uses with a thickness of not uniform thickness, and it is also anisodiametric rubber layer that diameter, which is, so that rubber metal pad is whole
Body structure integrally becomes similar hourglass-shaped, by increasing upper and lower level diameter, the mode of end layers thickness is thinned, it is rigid to improve the layer
Degree, so as to improve the ply stress strained situation.The stress situation that each layer rubber can effectively be changed in this way, so that each layer of rubber
Glue-line stress is substantially uniform, so as to improve the strained situation of end layers.The fatigability of entire rubber metal pad can be greatly improved in this way
Can, make rubber in transverse movement, end layers intensity is higher, and deformation is smaller, and strain is transferred to middle layer, reduces end layers
Stress, thus the phenomenon that improving whole anti-fatigue performance, end edge rubber layer is effectively prevent to tear.
Claims (8)
1. a kind of locomotive rubber metal pad for improving anti-fatigue performance, including upper padding plate, lower bolster, metal partion (metp) and rubber layer；Metal
Partition and rubber layer are between upper padding plate and lower bolster, and according to one layer of rubber layer, one layer of metal layer is staggered, form multilayer rubber
The rubber-metal rubber metal pad of glue and metal composite；It is characterized in that the rubber layer with a thickness of not uniform thickness, and rubber layer
Diameter be also be anisodiametric rubber layer.
2. improving the locomotive rubber metal pad of anti-fatigue performance as described in claim 1, it is characterised in that: the thickness of the rubber layer
Degree for not uniform thickness, by the rubber layer of rubber metal pad using not equal thickness structure, is passed through according to the finite element analysis of rubber metal pad stress
The stress that rubber layer of equal thickness bears each layer of rubber is more uniform.
3. improving the locomotive rubber metal pad of anti-fatigue performance as claimed in claim 2, it is characterised in that: the thickness of the rubber layer
Degree is the layer on the basis of middle layer, and intermediate layer thickness is most thick, and the thickness of rubber layer is gradually thinned respectively from middle layer toward up or down,
On side or upper and lower rubber layer thickness is most thin.
4. as claimed in claim 3 improve anti-fatigue performance locomotive rubber metal pad, it is characterised in that: it is described from middle layer toward
Up or down respectively gradually be thinned rubber layer thickness be according to middle layer rubber layer be 1, close to middle layer rubber layer relatively in
Interbed reduces thickness 0.1-0.3, then outer one layer of rubber layer reduces 0.1-0.3 with respect to internal layer rubber layer again, and so on, until
Outermost layer rubber layer is successively decreased with this, reduces rubber layer thickness, to improve the strained situation of end layers.
5. improving the locomotive rubber metal pad of anti-fatigue performance as described in claim 1, it is characterised in that: described is anisodiametric
Rubber layer is to use anisodiametric rubber layer, and the rubber layer diameter of middle layer is minimum, and rubber layer diameter more outward is bigger.
6. improving the locomotive rubber metal pad of anti-fatigue performance as claimed in claim 5, it is characterised in that: the use does not wait straight
The rubber layer of diameter is on the basis of the diameter of middle layer rubber layer, and the diameter of rubber layer more outward or up and down is bigger, so that whole
The line on a rubber metal pad rubber layer inner arc top forms a camber line to concave, improves rubber metal pad by adjusting arc curvature of a curve
Anti-fatigue performance.
7. improving the locomotive rubber metal pad of anti-fatigue performance as claimed in claim 6, it is characterised in that: the camber line of the indent
For interior concave arc symmetrical above and below.
8. improving the locomotive rubber metal pad of anti-fatigue performance as claimed in claim 6, it is characterised in that: the camber line of the indent
For concave arc in asymmetry up and down.
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| CN201820914224.7U CN208559368U (en) | 2018-06-13 | 2018-06-13 | A kind of locomotive rubber metal pad improving anti-fatigue performance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639087A (en) * | 2018-06-13 | 2018-10-12 | 株洲时代新材料科技股份有限公司 | A kind of locomotive rubber metal pad Varying-thickness improves anti-fatigue performance method and locomotive rubber metal pad |
| CN108757796A (en) * | 2018-06-13 | 2018-11-06 | 株洲时代新材料科技股份有限公司 | A kind of method and locomotive rubber metal pad improving locomotive rubber metal pad anti-fatigue performance |
| CN108749847A (en) * | 2018-06-13 | 2018-11-06 | 株洲时代新材料科技股份有限公司 | A kind of locomotive rubber metal pad variable diameters improve anti-fatigue performance method and locomotive rubber metal pad |
-
2018
- 2018-06-13 CN CN201820914224.7U patent/CN208559368U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639087A (en) * | 2018-06-13 | 2018-10-12 | 株洲时代新材料科技股份有限公司 | A kind of locomotive rubber metal pad Varying-thickness improves anti-fatigue performance method and locomotive rubber metal pad |
| CN108757796A (en) * | 2018-06-13 | 2018-11-06 | 株洲时代新材料科技股份有限公司 | A kind of method and locomotive rubber metal pad improving locomotive rubber metal pad anti-fatigue performance |
| CN108749847A (en) * | 2018-06-13 | 2018-11-06 | 株洲时代新材料科技股份有限公司 | A kind of locomotive rubber metal pad variable diameters improve anti-fatigue performance method and locomotive rubber metal pad |
| WO2019237899A1 (en) * | 2018-06-13 | 2019-12-19 | 株洲时代新材料科技股份有限公司 | Method for improving fatigue resistance of locomotive rubber stack by means of changing diameter thereof, and locomotive rubber stack |
| WO2019237897A1 (en) * | 2018-06-13 | 2019-12-19 | 株洲时代新材料科技股份有限公司 | Method for improving anti-fatigue performance of locomotive rubber-metal pad, and locomotive rubber-metal pad |
| WO2019237898A1 (en) * | 2018-06-13 | 2019-12-19 | 株洲时代新材料科技股份有限公司 | Method for improving anti-fatigue performance by changing thicknesses for locomotive rubber-metal pad and locomotive rubber-metal pad |
| US11479274B2 (en) | 2018-06-13 | 2022-10-25 | Zhuzhou Times New Material Technology Co., Ltd. | Method for improving fatigue resistance performance of locomotive rubber-metal pad and locomotive rubber-metal pad |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200608 Address after: 412007 No.301, physical and chemical building, Liyu Industrial Park, no.639, Heilongjiang Road, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: Zhuzhou Times Ruiwei damping equipment Co., Ltd Address before: 412007 No. 18 Haitian Road, Tianyuan District, Hunan, Zhuzhou Patentee before: Zhuzhou Times New Material Technology Co.,Ltd. |