CN204309790U - Track traffic air bellow - Google Patents
Track traffic air bellow Download PDFInfo
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- CN204309790U CN204309790U CN201420868013.6U CN201420868013U CN204309790U CN 204309790 U CN204309790 U CN 204309790U CN 201420868013 U CN201420868013 U CN 201420868013U CN 204309790 U CN204309790 U CN 204309790U
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- hourglass spring
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- air bellow
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Abstract
The utility model discloses a kind of track traffic air bellow, comprise the upper cover plate be fixedly connected with car body and the air bag be sealedly and fixedly connected with described upper cover plate, comprise the hourglass spring assembly be connected with described air sac sealing further, described hourglass spring assembly comprises hourglass spring and is arranged at the limiting component of its inside, described limiting component comprises the hard boss to downward-extension, the height of described hard boss is less than the height of described hourglass spring, and the vertical deflection of hourglass spring is restricted described in the height official post of the two, hourglass spring backstop gap and spatial joint clearance sum are the largest amount of subsidence that car body allows relative to bogie truck.The track traffic air bellow that theres is provided of application the utility model, can control the deflection of car body within the specific limits, avoids and that the car body that cause and bogie truck interfere danger excessive due to deflection.Meanwhile, the track traffic air spring constructions that the utility model provides is simply compact, and be easy to assembling, required installing space is little.
Description
Technical field
The utility model relates to technical field of rail traffic, more particularly, relates to a kind of track traffic air bellow.
Background technology
Air bellow, refers generally to fill with pressurized air in telescopic leakproof tank, utilizes the spring of aeroelastic effect.In rail traffic vehicles secondary suspension device, air bellow, as important constituent elements, is installed between car body and bogie truck, for transmitting vertical load, can bear simultaneously and to be vertically out of shape with horizontal direction.By the stiffness characteristics of air bellow, dynamics and passenger comfort can be run for vehicle provides.In the deflated condition, the cooperation of height adjusting valve, effectively can ensure that vehicle is under different loads, the unification of height of floor from rail top to air bellow in addition.Air bellow is without under gaseity, and car body will sink, and provide dynamics by assist spring.
In prior art, track traffic air bellow comprises air bag and assist spring more.Refer to Fig. 1, Fig. 1 is the structural representation of a kind of track traffic air bellow common in prior art.
Above-mentioned a kind of track traffic air bellow comprises upper cover plate 01, air bag 02 and hourglass spring 03, and three forms confined space.Thus, under inflation situation, deadlight load is passed to air bag 02 by upper cover plate 01, going down is to hourglass spring 03 again, distance between upper cover plate bottom surface and hourglass spring assembly end face is spatial joint clearance, and as shown in E in figure, this spatial joint clearance sets when empty wagons usually.Without in gas situation, because air bag 02 can not bearing load, upper cover plate 01 directly drops down onto on hourglass spring assembly, i.e. above-mentioned spatial joint clearance vanishing, and deadlight load is directly passed to hourglass spring 03 by upper cover plate 01.Though hourglass spring 03 can meet horizontal vertical stiffness demand, derailing risk when avoiding vehicle curved without cyclostrophic.But simultaneously, because the rigidity of hourglass spring 03 is less relative to stacked spring-like assist spring, easily on vertical, downward larger displacement is there is in the situations such as vehicle load is larger, simultaneously after creep occurs hourglass spring 03, the excursion of hourglass spring 03 in vertical direction is because vehicle load changes the displacement and vertical creep compliance sum produced, easily cause danger when this excursion and spatial joint clearance sum exceed the largest amount of subsidence that vehicle allows, and for different vehicles, generally different according to the largest amount of subsidence of the above-mentioned permission of the situations such as body construction.
In sum, how effectively solving track traffic air bellow and downward larger displacement may occur, and then cause the problem such as reduction of vehicle operating safety, is current those skilled in the art's urgent problem.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of track traffic air bellow, and this track traffic air bellow effectively can solve car body and the problem that downward larger displacement causes vehicle operating safety to reduce occurs.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of track traffic air bellow, comprises the upper cover plate be fixedly connected with car body and the air bag be sealedly and fixedly connected with described upper cover plate; Comprise further:
The hourglass spring assembly be connected with described air sac sealing, described hourglass spring assembly comprises hourglass spring and is arranged at the limiting component of its inside, described limiting component comprises the hard boss to downward-extension, the height of described hard boss is less than the height of described hourglass spring, and the diff-H of the two is the backstop gap of described hourglass spring assembly, gap between described upper cover plate and described hourglass spring assembly is spatial joint clearance, and the backstop gap sum of described spatial joint clearance and described hourglass spring assembly equals the largest amount of subsidence that described car body allows.
Preferably, in above-mentioned track traffic air bellow, described limiting component comprises the upper head plate being placed in described hourglass spring end face further, and described upper head plate is connected with described air sac sealing, and described upper head plate is fixedly connected with described hard boss.
Preferably, in above-mentioned track traffic air bellow, the lower surface of described upper head plate is downward-sloping to center by edge.
Preferably, in above-mentioned track traffic air bellow, described upper head plate is split-type structural, comprise the Part I be connected with described air sac sealing and the Part II be connected with described hourglass spring, and described Part I is fixedly connected with Part II.
Preferably, in above-mentioned track traffic air bellow, the bottom of described hourglass spring offers axisymmetric cavity, and the lower end of described hard boss extends to described cavity place, and described cavity is about the axisymmetrical of described hourglass spring.
Preferably, in above-mentioned track traffic air bellow, comprise the base plate supporting described hourglass spring further, described base plate is connected with bogie truck.
Preferably, in above-mentioned track traffic air bellow, comprise the bottom plate be arranged between described base plate and described hourglass spring further.
Preferably, in above-mentioned track traffic air bellow, described bottom plate offers through hole, and size and shape and the described cavity bottom of through hole are measure-alike, and described base plate offer air extractor vent, described air extractor vent and described cavity connects.
Preferably, in above-mentioned track traffic air bellow, the upper surface of described bottom plate is downward-sloping to center by edge, and the bottom surface of described hourglass spring and the upper surface of described bottom plate fit.
Preferably, in above-mentioned track traffic air bellow, described limiting component is connected through sulfuration with described hourglass spring, and described bottom plate is connected through sulfuration with described hourglass spring.
The track traffic air bellow that the utility model provides comprises upper cover plate, air bag and hourglass spring assembly.Wherein, upper cover plate, air bag and hourglass spring assembly are tightly connected, and form closed cavity, and upper cover plate are fixedly connected with car body.Gap between upper cover plate and hourglass spring assembly is spatial joint clearance, limiting component is provided with in hourglass spring assembly, and the hard boss comprised to downward-extension, the height of hard boss is less than the height of hourglass spring, and the diff-H of the two is the backstop gap of hourglass spring assembly, the backstop gap sum of spatial joint clearance and hourglass spring assembly equals the largest amount of subsidence that car body allows.
The track traffic air bellow that application the utility model provides, when the bladder inflates, upper cover plate, by the supporting role of air bag, supports car body further.When after bladder deflates, when being also namely in without gaseity, spatial joint clearance vanishing, upper cover plate is mainly by the supporting role of hourglass spring assembly, and deadlight load is directly passed to hourglass spring assembly by upper cover plate.In hourglass spring assembly, the height of limiting component is less than the height of hourglass spring again, and hourglass spring assembly can be compressed, so along with the increase of car body load-carrying and the generation of hourglass spring creep, the height of upper cover plate declines gradually.And when hourglass spring-compressed can not be compressed further to the supporting role due to limiting component, when namely reaching the backstop gap of hourglass spring assembly, upper cover plate can not decline simultaneously further, thus effectively the fall of car body is controlled within the specific limits, avoid its and that cause danger excessive due to fall, improve the safety of vehicle operating.
Meanwhile, the track traffic air bellow that the utility model provides has good lower rigidity and stronger displacement capabilities, and simple and compact for structure, and be easy to assembling, required installing space is little.
In a preferred embodiment, the track traffic air bellow that the utility model provides, its limiting component comprises the upper head plate being placed in described hourglass spring end face further, described upper head plate is connected with described air sac sealing, described upper head plate is fixedly connected with described hard boss, and the lower surface of described upper head plate is downward-sloping to outward flange one end of hard boss by one end of the outside edge contacts with described hourglass spring.By being obliquely installed, when vehicle crosses turnout, curve, air spring system is more firm under horizontal load.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of track traffic air bellow common in prior art;
The structural representation of a kind of detailed description of the invention of track traffic air bellow that Fig. 2 provides for the utility model.
In accompanying drawing, mark is as follows:
Upper cover plate 01, air bag 02, hourglass spring 03; Upper cover plate 1, air bag 2, wear plate 3, limiting component 4, stay bearing plate 5, hourglass spring assembly 6, bottom plate 7, base plate 8, clasp 9, hourglass spring 10, upper head plate 41, hard boss 42.
Detailed description of the invention
The utility model embodiment discloses a kind of track traffic air bellow, to avoid track traffic air bellow over-large displacement to occur downwards, improves the safety of vehicle operating.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 2, the structural representation of a kind of detailed description of the invention of track traffic air bellow that Fig. 2 provides for the utility model.
In a kind of detailed description of the invention, the track traffic air bellow that the utility model provides comprises upper cover plate 1, air bag 2 and hourglass spring assembly 6.
Wherein, upper cover plate 1 is fixedly connected with car body, thus by the weight transmitting of car body to air bellow.Upper cover plate 1, air bag 2 and hourglass spring assembly 6 are tightly connected, and form closed cavity, and thus when air bag 2 is inflated, car body is mainly by the supporting role of air bag 2.Concrete upper cover plate 1 please refer to prior art with the structure of air bag 2, repeats no more herein, and upper cover plate 1 and air bag 2 can pass through clasp 9 fixed seal connection.Gap between upper cover plate 1 and hourglass spring assembly 6 is spatial joint clearance, and as shown in E in figure, this spatial joint clearance sets when empty wagons usually.
Hourglass spring assembly 6 comprises hourglass spring 10, and what the profile of hourglass spring 10 was general is smooth curved surface, and curved surface upper end is less, transits to maximum position gradually downwards, and reduces gradually further to bottom.The hourglass spring 10 of said structure has good horizontal vertical stiffness, can meet vehicle at air bellow without horizontal vertical stiffness demand during gaseity, reduces the danger caused because rigidity is excessive when curve crossed by vehicle.
Be provided with limiting component 4 in hourglass spring assembly 6, namely limiting component 4 be set further in the inside of hourglass spring 10.Limiting component 4 comprises the hard boss 42 to downward-extension, and the height of hard boss 42 is less than the height of hourglass spring 10, and the diff-H of the two is the backstop gap of hourglass spring assembly 6.Herein to downward-extension, refer to that hard boss 42 is vertically arranged, can play a supportive role to car body.Here diff-H is not the difference of the absolute altitude of the hourglass spring 10 of narrow sense and the absolute altitude of hard boss 42, and refers to the distance that hourglass spring assembly 6 can sink.Thus, without under gaseity, deadlight load is directly passed to hourglass spring assembly 6 by upper cover plate 1, in hourglass spring assembly 6, the height of limiting component 4 is less than the height of hourglass spring 10, therefore hourglass spring assembly 6 can be compressed, so along with the increase of car body load-carrying and the generation of hourglass spring creep, the height of upper cover plate 1 declines gradually.And when hourglass spring assembly 6 be compressed to due to limiting component 4 supporting role can not further by compression time, when namely reaching the backstop gap of hourglass spring assembly 6, upper cover plate 1 can not decline simultaneously further, thus effectively the fall of car body is controlled within the specific limits.The backstop gap of hourglass spring assembly 6 here, the namely largest amount of subsidence of hourglass spring assembly 6 or vertical spacing amount, as shown in B in figure, refer to that hourglass spring assembly 6 by the maxim compressed, can not refer to the maximum compressibility of hourglass spring 10 itself under the effect of limiting component 4.The backstop gap B of hourglass spring assembly 6 and spatial joint clearance E sum equal the largest amount of subsidence that car body allows, and for different vehicles, may be different to the requirement of largest amount of subsidence, therefore, the environment for use different according to track traffic air bellow concrete setting need be carried out.
Concrete, hard boss 42 can be the rounding mesa-shaped that upper end diameter is comparatively large, lower end diameter is less.Certainly, cylindric or other shapes can be also set to.But general, the structure of inverted round stage when track traffic air bellow is compressed by car body Action of Gravity Field, more firmly.Hard boss 42 can be arranged at the axis place of hourglass spring assembly 6, for inverted round stage structure, i.e. and the axis of hard boss 42 and the axis collinear of hourglass spring assembly 6.Certainly, under the quantity of hard boss 42 is the situations such as two, concrete also can be arranged at the position such as symmetrical place in hourglass spring assembly 6.
Some further improvement can be carried out to the track traffic air bellow in above-mentioned a kind of detailed description of the invention.
Concrete, limiting component 4 can arrange the upper head plate 41 be fixedly connected with hard boss 42 further, what upper head plate 41 and hard boss 42 were general is set to integral structure, certainly also can be set to split-type structural as required, and be connected by conventional modes that is fixedly connected with such as welding.Upper head plate 41 is positioned on the end face of hourglass spring 10.Two ends and the air bag 2 of upper head plate 41 are tightly connected, thus form the cavity for inflating with upper cover plate 1 and air bag 2.It is to be noted, upper head plate 41 also can be set to split-type structural further, namely the Part I be tightly connected with air bag 2 and the Part II be connected with hourglass spring 10 is comprised, and two parts are connected by the conventional mode that is fixedly connected with, for the ease of removing and installing, concrete can adopt the detouchable connection mode such as riveted joint, bolt connection.Limiting component 4 is mainly used in the displacement limiting car body, and avoid the excessive danger caused of its fall, thus limiting component 4 can be metal piece, certainly, also can be set to the parts of the other materials that other intensity etc. satisfy the demands as required.
In order to make upper head plate 41 and hourglass spring 10 more firm in stressed decline process, what the lower surface of upper head plate 41 was concrete can comprise raised zones, and namely the lower surface of upper head plate 41 is downward-sloping to center by outer edge.Concrete, can be downward-sloping to hard boss 42 by the outward flange touching position of the lower surface of upper head plate 41 and hourglass spring 10.Accordingly, the upper surface of hourglass spring 10 can be arranged according to the angle of inclination of upper head plate 41 lower surface, makes the two fit tightly.The large I at concrete angle of inclination is arranged according to factors such as the rigidity of hourglass spring 10 and operating modes, is not specifically limited here.Certainly, the lower surface of upper head plate 41 also can be set to plane.
Axisymmetric cavity can be offered in the bottom of hourglass spring 10, and the lower end of hard boss 42 extends to axisymmetric cavity place, and cavity is about the axisymmetrical of described hourglass spring assembly 6.By offering cavity in the bottom of hourglass spring 10, the rigidity of hourglass spring 10 can be adjusted further, to meet vehicle needs.Meanwhile, the lower end of hard boss 42 extends to axisymmetric cavity place, concrete can the bottom surface of concordant with the bottom surface of cavity or a little higher than cavity.Limiting component 4 is comprised to the situation of upper head plate 41, due to the structure that limiting component 4 entirety is T-shaped in class, the lower end of hard boss 42 extends to axisymmetric cavity place, when air bag 2 is without gas, hourglass spring assembly 6 pairs of car bodies play a supportive role, when height of the carbody drops to largest amount of subsidence, the parts under the lower surface of hard boss 42 and hourglass spring assembly 6 offset, and play spacing effect.
Further, can arrange base plate 8 in the below of hourglass spring assembly 6, base plate 8 is connected with the bogie truck of vehicle, thus the weight of car body is passed to bogie truck through base plate 8, in some cases, be the plane of central solid as connected air bellow base plate joint face, also base plate 8 can not be set.Between base plate 8 and hourglass spring 10, can bottom plate 7 be set further, and through hole can be offered in the center of bottom plate 7, can being set to that the size shape of through hole is general is consistent with the cavity bottom size bottom hourglass spring 10, therefore, when limiting component 4 drops to and offsets with base plate 8, the vertical deviation of car body is limited.In this case, hard boss 42 and the diff-H of hourglass spring 10 refer to the distance B of lower surface apart from base plate 8 of hard boss 42, i.e. the backstop gap of hourglass spring assembly 6, and backstop gap B adds spatial joint clearance E, namely correspond to the largest amount of subsidence that car body allows.Concrete, base plate 8 can offer air extractor vent, and air extractor vent is connected with axisymmetric cavity, thus when hourglass spring 10 is by compression, air in buffering cavity can be discharged by air extractor vent, avoids air and is compressed the larger pressure of generation to the impact of integral structure stability.Base plate 8 and concrete being fixedly connected with by screw of bottom plate 7, also can adopt the mode that is fixedly connected with of other routines to connect certainly.
The upper surface of bottom plate 7 can arrange sunk area further, and namely the upper surface of bottom plate 7 is downward-sloping to center by edge.Concrete, can at the upper surface of bottom plate 7 by downward-sloping gradually with the outside edge contacts Chu Dao center of hourglass spring 10.The amplitude tilted can be arranged according to factors such as the rigidity of hourglass spring 10 and operating modes, can not certainly sunk area be set, planar structure also can play the supporting role to hourglass spring assembly 6, and the structure being arranged so that hourglass spring assembly 6 of sunk area is more firm.Accordingly, the bottom surface of hourglass spring 10 is arranged according to the shape of sunk area, makes the faying face contact of the two good.
Further, hourglass spring assembly 6 can arrange wear plate 3 and stay bearing plate 5.For the ease of the fixed installation of the two, the upper surface of upper head plate 41 can offer groove, and wear plate 3 is placed in groove, and stay bearing plate 5 is positioned at the below of wear plate 3, the position namely between wear plate 3 and upper head plate 41.To make wear plate 3, there is better carrying condition.The degree of depth of groove need be arranged according to the thickness of wear plate 3 with stay bearing plate 5, when being placed in groove to make wear plate 3 and stay bearing plate 5, the upper surface of wear plate 3 is higher than the notch of groove, namely wear plate 3 is projecting inward by the groove of upper head plate 41, thus will first contact with wear plate 3 without upper cover plate during gas 1.Certainly, according to actual needs, also wear plate 3 can be set separately on upper head plate 41.
In order to make hourglass spring assembly 6 better play support limit effect, concrete, hourglass spring 10 can be connected through sulphurization with limiting component 4.Certainly, hourglass spring 10 is same with bottom plate 7 adopts sulfuration to connect.Upper head plate 41 and the hard boss 42 of hourglass spring 10 and limiting component 4 sulfide, make the integral structure of hourglass spring assembly 6 when by vehicle body pressure effect generation compressive deformation, hard boss 42 can be more firm reach car body allow largest amount of subsidence time support limit effect is play to car body, not easily occur skew wait affects support effect.When the upper head plate 41 of limiting component 4 is the split-type structural be fixedly connected with by riveted joint etc., only need make its Part II and hourglass spring 10 sulfuration, another part and air bag 2 are tightly connected.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a track traffic air bellow, comprises the upper cover plate (1) be fixedly connected with car body and the air bag (2) be sealedly and fixedly connected with described upper cover plate (1); It is characterized in that, comprise further:
The hourglass spring assembly (6) be tightly connected with described air bag (2), described hourglass spring assembly (6) comprises hourglass spring (10) and is arranged at the limiting component (4) of its inside, described limiting component (4) comprises the hard boss (42) to downward-extension, the height of described hard boss (42) is less than the height of described hourglass spring (10), and the diff-H of the two is the backstop gap of described hourglass spring assembly (6), gap between described upper cover plate (1) and described hourglass spring assembly (6) is spatial joint clearance, the backstop gap sum of described spatial joint clearance and described hourglass spring assembly (6) equals the largest amount of subsidence that described car body allows.
2. track traffic air bellow according to claim 1, it is characterized in that, described limiting component (4) comprises the upper head plate (41) being placed in described hourglass spring (10) end face further, described upper head plate (41) and described air bag (2) are tightly connected, and described upper head plate (41) is fixedly connected with described hard boss (42).
3. track traffic air bellow according to claim 2, is characterized in that, the lower surface of described upper head plate (41) is downward-sloping to center by edge.
4. track traffic air bellow according to claim 2, it is characterized in that, described upper head plate (41) is split-type structural, comprise the Part I be tightly connected with described air bag (2) and the Part II be connected with described hourglass spring (10), and described Part I is fixedly connected with Part II.
5. the track traffic air bellow according to any one of claim 1-4, it is characterized in that, the bottom of described hourglass spring (10) offers axisymmetric cavity, the lower end of described hard boss (42) extends to described cavity place, and described cavity is about the axisymmetrical of described hourglass spring (10).
6. track traffic air bellow according to claim 5, is characterized in that, comprise the base plate (8) supporting described hourglass spring (10) further, described base plate (8) is connected with bogie truck.
7. track traffic air bellow according to claim 6, it is characterized in that, comprise the bottom plate (7) be arranged between described base plate (8) and described hourglass spring (10) further, and described bottom plate (7) is fixedly connected with described base plate (8).
8. track traffic air bellow according to claim 7, it is characterized in that, described bottom plate (7) offers through hole, size and shape and the described cavity bottom of through hole are measure-alike, and described base plate (8) offers air extractor vent, described air extractor vent and described cavity connects.
9. track traffic air bellow according to claim 8, it is characterized in that, the upper surface of described bottom plate (7) is downward-sloping to center by edge, and the upper surface of the bottom surface of described hourglass spring (10) and described bottom plate (7) fits.
10. track traffic air bellow according to claim 9, it is characterized in that, described limiting component (4) is connected through sulfuration with described hourglass spring (10), and described bottom plate (7) is connected through sulfuration with described hourglass spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868013.6U CN204309790U (en) | 2014-12-31 | 2014-12-31 | Track traffic air bellow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868013.6U CN204309790U (en) | 2014-12-31 | 2014-12-31 | Track traffic air bellow |
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| Publication Number | Publication Date |
|---|---|
| CN204309790U true CN204309790U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420868013.6U Withdrawn - After Issue CN204309790U (en) | 2014-12-31 | 2014-12-31 | Track traffic air bellow |
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| CN (1) | CN204309790U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527694A (en) * | 2014-12-31 | 2015-04-22 | 株洲时代新材料科技股份有限公司 | Air spring for rail transit |
| CN106891910A (en) * | 2015-12-18 | 2017-06-27 | 株洲时代新材料科技股份有限公司 | A kind of Air spring for rail traffic |
| EP3098472B1 (en) * | 2015-05-27 | 2018-02-14 | Toyo Tire&Rubber Co., Ltd. | Stopper for suspension system |
| CN107859708A (en) * | 2017-11-10 | 2018-03-30 | 中车青岛四方车辆研究所有限公司 | Covered on empty spring, lid test tool and its manufacture method on empty spring and empty spring |
| CN108569304A (en) * | 2017-03-08 | 2018-09-25 | 庞巴迪运输有限公司 | The secondary suspension that can adjust height for rolling stock |
-
2014
- 2014-12-31 CN CN201420868013.6U patent/CN204309790U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527694A (en) * | 2014-12-31 | 2015-04-22 | 株洲时代新材料科技股份有限公司 | Air spring for rail transit |
| WO2016106940A1 (en) * | 2014-12-31 | 2016-07-07 | 株洲时代新材料科技股份有限公司 | Air spring for rail transit |
| JP2018503554A (en) * | 2014-12-31 | 2018-02-08 | ジューチョウ・タイムズ・ニュー・マテリアル・テクノロジー・カンパニー・リミテッド（チャイナ・コーポレイション） | Air spring for rail transport |
| EP3098472B1 (en) * | 2015-05-27 | 2018-02-14 | Toyo Tire&Rubber Co., Ltd. | Stopper for suspension system |
| CN106891910A (en) * | 2015-12-18 | 2017-06-27 | 株洲时代新材料科技股份有限公司 | A kind of Air spring for rail traffic |
| CN108569304A (en) * | 2017-03-08 | 2018-09-25 | 庞巴迪运输有限公司 | The secondary suspension that can adjust height for rolling stock |
| CN107859708A (en) * | 2017-11-10 | 2018-03-30 | 中车青岛四方车辆研究所有限公司 | Covered on empty spring, lid test tool and its manufacture method on empty spring and empty spring |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20171208 |
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| AV01 | Patent right actively abandoned |