CN102476643A - Railway vehicle steering frame and railway vehicle - Google Patents
Railway vehicle steering frame and railway vehicle Download PDFInfo
- Publication number
- CN102476643A CN102476643A CN2010105573162A CN201010557316A CN102476643A CN 102476643 A CN102476643 A CN 102476643A CN 2010105573162 A CN2010105573162 A CN 2010105573162A CN 201010557316 A CN201010557316 A CN 201010557316A CN 102476643 A CN102476643 A CN 102476643A
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- CN
- China
- Prior art keywords
- cushion
- bogies
- side frame
- railway vehicles
- adapter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/32—Guides, e.g. plates, for axle-boxes
Abstract
The invention provides a railway vehicle steering frame and a railway vehicle. The railway vehicle steering frame comprises two groups of wheel pairs, a carrying saddle and a side frame, wherein the carrying saddle is arranged on a wheel pair bearing, the side frame is arranged on the carrying saddle at the same side, a first elastic pad is arranged between the horizontal contact surfaces of the carrying saddle and a side frame guide frame of the side frame, and a second elastic pad is respectively arranged between the two side contact surfaces of the carrying saddle and the side frame guide frame. The first elastic pad in the railway vehicle steering frame provided by the invention can provide an ideal vertical static flexibility for a suspension system, in addition, the limitation of the transverse rigidity value consideration is avoided, the normal rigidity value of the second elastic pads can provide higher longitudinal rigidity, and the first elastic pad and the two second elastic pads simultaneously provide the proper transverse rigidity. Therefore, the railway vehicle steering frame and the railway vehicle realize the sufficient elastic positioning and restriction of the wheel pair, so the three-direction rigidity values of the vertical direction, the longitudinal direction and the crosswise of the elastic restriction can be optimized, and the design requirements of vehicles with different performance can be met.
Description
Technical field
The present invention relates to the rolling stock manufacturing technology, relate in particular to a kind of bogies for railway vehicles and rolling stock.
Background technology
Bogies for railway vehicles is one and bears the deadweight of cargo weight and car body and also guide rolling stock at high-speed cruising on the rectilinear orbit and the vitals on the rolling stock of turning operation on the curve track simultaneously.
Figure 1A is existing cast steel three-major-items formula bogie structure scheme drawing; Figure 1B is that the single stage suspension of prior art bogies for railway vehicles is taken turns elasticity locate mode scheme drawing, and Fig. 1 C is the structural representation that prior art bogies for railway vehicles elastic positioning device major part is sheared rubber pad.Shown in Figure 1A (only provided a lateral plan among the figure, the opposite side structure is identical with it), two groups of wheels longitudinally arranging before and after (direction along ng a path) to 1, bogie side frame 2 and bolster 3 (bearing body it on) formation three-major-items formula bogie truck.Wherein, Every group of wheel comprises along two wheels of horizontal (perpendicular to the direction of track) straight-though arrangement 1; And fix as one by the axletree that passes two wheel centers 112; Each both sides of taking turns 1 is provided with wheel set bearing 111 and adapter 13, and 2 of bogie side frames are arranged on the adapter 13 of front and rear wheel to homonymy.Fwd wheel to 1 and bogie side frame 2 between be provided with single stage suspension device a, be provided with secondary suspension device b between bogie side frame 2 spring cushion caps and bolster 3 ends.Please more simultaneously with reference to Figure 1B and Fig. 1 C; Between the end face of adapter 13 end faces and side frame guide 211, be provided with one and shear rubber pad 14, respectively on the location pin 141 through being arranged at its upper and lower surface and said two planes little free-running fit of cooresponding knock hole with realize wheel to and bogie side frame between elasticity locate.When train orbits because vertical and the horizontal irregularity excitation of track forms a random vibration system, wherein, take turns to adapter be the spring lower component, and bogie side frame is the spring upper-part with upper-part and car body.In vibration processes, wheel will be to producing longitudinally (track alignment) directions X, horizontal (vertical track direction) Y direction, the elastic displacement of three directions of vertical Z direction.After shearing rubber pad according to the physical property appropriate design of rubber pad, can obtain rigidity value along three directions, that is: direction along ng a path vertically (X axle) shear rigidity, along track laterally (Y axle) shear rigidity, along the vertical stiffness of vertical (Z axle).The action strong correlation of exerting oneself between wheel-rail lateral force and the wheel track of the size of this three-way rigidity numerical value during directly with bogie truck straight line serpentine locomotion critical speed, curve negotiating.
But railway transportation more and more requires high-speed overload, and this makes wheel approach its critical speed more easily to when track rolls forward, producing unsettled serpentine locomotion, causes evoking the violent yawing of car body, also can cause the derail accident when serious.In order to guarantee that vehicle has higher serpentine locomotion stability when on straight line, moving, require to shear rubber pad 14 vertical (X axle) shear rigidities and want big; Has higher serpentine locomotion stability when guaranteeing linear running; Wheel-rail lateral force is not too big when taking into account curve negotiating simultaneously; Require shearing rubber pad 14 horizontal (Y axle) shear rigidities shown in Fig. 1 C to be less than longitudinal shear rigidity, both ratios are wanted suitably; And shear rubber pad 14 isolation from the high-frequency vibration under the spring in order to make full use of, the action that reduces between wheel track is exerted oneself, and requires one to be to shear rubber pad 14 along vertical suitable natural bow will be arranged, and comes to confirm its vertical stiffness value thus.But because structure space restriction; The longitudinal rigidity and the lateral stiffness of the shearing rubber pad in this elastic positioning device are approaching; And simultaneously if want to increase its vertical natural bow value; According to the characteristic of the rubber bodies of shearing rubber pad, just must thicken the thickness of rubber layer or adopt multiple-structure, the inevitable outcome of doing like this can significantly reduce to shear the shear rigidity of rubber pad again.Can find out that adopt the bogies for railway vehicles of this elasticity locate mode, the three-way rigidity value can not better be mated, seriously limit the performance of shearing the rubber pad effect in this single stage suspension device.
Summary of the invention
The present invention is directed to the above-mentioned defective of prior art, a kind of bogies for railway vehicles and rolling stock are provided.
The present invention provides a kind of bogies for railway vehicles, comprise two groups of wheels to, be arranged on the adapter on the wheel set bearing, and be arranged on the bogie side frame on two adapters of homonymy.Between the horizontal contact surface of the side frame guide of said adapter and bogie side frame, be provided with first cushion; Between the side direction contact surface of said adapter and said side frame guide, respectively be provided with one second cushion.
The present invention also provides a kind of rolling stock, comprises above-mentioned bogies for railway vehicles, and is arranged on the car body on the said bogies for railway vehicles.
Bogies for railway vehicles provided by the invention and rolling stock; Right abundant elasticity location and constraint have been realized taking turns; And make vertical, the vertical and horizontal three-way rigidity value of elastic restraint reach optimization; Satisfy the designing requirement of different performance vehicle, really realize the dreamboat of wheel track low dynamic action.
Description of drawings
Figure 1A is existing cast steel three-major-items formula bogie structure scheme drawing.
Figure 1B is that the single stage suspension of prior art bogies for railway vehicles is taken turns elasticity locate mode scheme drawing.
Fig. 1 C is the structural representation that the major part of prior art bogies for railway vehicles elastic positioning device is sheared rubber pad.
Fig. 2 is that the wheel taked of one embodiment of the invention bogies for railway vehicles is to elasticity locate mode scheme drawing.
Fig. 3 A is the structural representation of first cushion in one embodiment of the invention.
Fig. 3 B is the birds-eye view of first cushion shown in Fig. 3 A
Fig. 3 C is another design shape scheme birds-eye view of first cushion in one embodiment of the invention.
Fig. 4 A is that the AA of the second cushion scheme in one embodiment of the invention is to view.
Fig. 4 B is another conceptual schematic drawing of second cushion in one embodiment of the invention.
Fig. 5 is the main cutaway view of the second cushion scheme in one embodiment of the invention.
Reference numeral:
The 1-wheel is right; 14-shears rubber pad; The 111-wheel set bearing;
The 13-adapter; α, β-acute angle; The 2-bogie side frame;
The 3-bolster; A-single stage suspension device; B-secondary suspension device;
The 4-track; G1-first cushion; G2-second cushion;
141-locatees pin; G11-metal locating plate; G13-metal typing dividing plate;
The g0-rubber bodies; The g12-straight pin; The 211-side frame guide;
The 214-stop block; G21-is protruding.The 112-axletree.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 2 is that the wheel taked of one embodiment of the invention bogies for railway vehicles is to elasticity locate mode scheme drawing.Please refer to Fig. 2; One embodiment of the invention bogies for railway vehicles; Comprise two groups of wheels to 1, be arranged on the adapter 13 on the wheel set bearing 111; And be arranged on the bogie side frame 2 on two adapters 13 of homonymy, between the horizontal contact surface of the side frame guide 211 of adapter 13 and bogie side frame 2, be provided with the first cushion g1; Between the side direction contact surface of adapter 13 and side frame guide 211, respectively be provided with one second cushion g2.Wherein, Two groups of wheels are arranged before and after longitudinally 1; And every group of wheel is to comprising two wheels and axletree that passes two wheel centers and be fixed together with it of arranging along lateral symmetry; Wheel set bearing 111 is provided with adapter 13 near side frames drawing strickle guide 211 places, and 2 of bogie side frames are arranged on two adapters 13 of homonymy.Between the horizontal contact surface of adapter 13 and side frame guide 211, promptly between adapter shown in Figure 2 13 end faces and side frame guide 211 end faces, be provided with one first cushion g1; Between the side direction contact surface of adapter 13 and said side frame guide 211; Promptly, respectively be provided with one second cushion g2 respectively at the contact surface of side frame guide 211 facades that are positioned at adapter 13 front sides and this adapter facade be positioned between the contact surface of side frame guide 211 facades and this adapter facade of adapter rear side.Present embodiment is through being realized vertical, the vertical and horizontal three-way rigidity of bogie primary-suspension system respectively in vertical, vertical technical scheme that three cushions are set respectively by the different elasticity pad; The first cushion g1 can provide the single stage suspension system desirable vertical natural bow value; To isolate the high-frequency vibration that wheel track transmits, no longer receive the restriction that will take into account its lateral stiffness value.Two second cushion g2 play wheel carrying out the effect of vertical and horizontal elastic restraint.
The longitudinal rigidity utilization of bogie primary-suspension system is the normal stiffness value of the second cushion g2 in the present embodiment, can be known that by the caoutchouc elasticity bulk properties its normal stiffness can in very large range design, to satisfy the requirement of various longitudinal rigidity numerical value.The lateral stiffness of single stage suspension system then depends on the lateral stiffness sum of the lateral stiffness and the second cushion g2 of the first cushion g1, and the latter is provided by the lateral shear rigidity of the second cushion g2.Can know that by the caoutchouc elasticity bulk properties its shear rigidity is much smaller than normal stiffness.So, calculate the three-way rigidity value that just can obtain desirable single stage suspension system through appropriate design to first cushion and second cushion.At this moment, the vertical amount of deflection with secondary suspension system of bogie truck central authorities realizes matched well again, just possibly reach the purpose that increases substantially the vertical dynamic performance of vehicle.
Fig. 3 A is the structural representation of first cushion in one embodiment of the invention.Fig. 3 B is the birds-eye view of first cushion shown in Fig. 3 A.In the said embodiment bogies for railway vehicles, the inside of the first cushion g1 and the second cushion g2 is rubber bodies g0, above that, lower surface is provided with metal locating plate g11, vulcanizes between rubber bodies g0 and the metal locating plate g11 to bond together.
Can comprise single layer rubber bodies in first cushion in the foregoing description, also can comprise the multilayer rubber body, when comprising the multilayer rubber body, also be provided with metal typing dividing plate between the rubber bodies of adjacent layer.Fig. 3 A and Fig. 3 B are depicted as the first cushion g1 of a two-layer structure.Shown in figure, rubber bodies g0 places the inside of metal locating plate g11, and also is provided with metal typing dividing plate g13 wherein and rubber bodies g0 is divided into two-layer up and down, also vulcanizes between rubber bodies g0 and the metal typing dividing plate g13 and bonds together.Other multiple-structure is similar with diagram, does not illustrate with diagram at this.The flexible design of such multiple-structure can satisfy different vertical stiffness value demands.
Further, in the foregoing description the first cushion g1 can also according to cooperation adapter 13 end faces the shape needs and it is designed to circle, shown in Fig. 3 C, other structure is constant.
Further, respectively be provided with the straight pin g12 that the knock hole that is provided with on the horizontal contact surface that is used for adapter 13 and side frame guide 211 cooperates in the foregoing description on the upper and lower surfaces of the first cushion g1.Wherein, the corresponding knock hole on two straight pins of upper surface and side frame guide 211 end faces cooperates, and the corresponding knock hole on two straight pins on the lower surface and adapter 13 end faces cooperates, and cooperation has realized spacing to the first cushion g1.
Please be simultaneously with reference to Fig. 2 and Fig. 4 A, the side of the second cushion g2 in the foregoing description is provided with protruding g21, is respectively arranged with the groove that is used for laterally blocking the second cushion g2 on the side direction contact surface of adapter 13 and side frame guide 211.That is, contact at the second cushion g2 and side frame guide 211 back facades on the metal locating plate g11 of a side and be provided with a protruding g21, the back facade of cooresponding with it side frame guide 211 is provided with a groove, with realization side frame guide 211 horizontal backstops; Simultaneously, also be provided with a groove on cooresponding adapter 13 facades of opposite side metal locating plate g11 of the second cushion g2, this groove can cooperate with this side of second cushion to realize the horizontal backstop of adapter.
Fig. 5 is the main cutaway view of the second cushion scheme in the foregoing description.As shown in the figure, the two ends up and down of the side direction contact surface of side frame guide are provided with and are used for the vertical stop block 214 that blocks the second cushion g2.That is, respectively be provided with a stop block 214 in the upper and lower end parts of the back facade of side frame guide 211, its spacing is from just placing the second cushion g2, to realize the vertical backstop of side frame guide.Further, the side direction contact surface of the adapter 13 that contacts with the second cushion g2 is obliquely installed from the top down, and its degree of dip is with this face and vertically acutangulated α and measure, and with this fixing better second cushion g2, prevents its downslide.
Fig. 4 B is another conceptual schematic drawing of second cushion in the foregoing description; As can be seen from the figure; Rubber bodies g0 among the second cushion g2 presents horizontal splayed structure; The size at angle of inclination is measured to the acute angles beta value that is become with Y through the tangent line of any on the Eight characters face, can adjust the β value according to required rigidity value like this.This scheme is applicable to the occasion that needs big lateral stiffness value, more can make the present invention satisfy the designing requirement of different performance vehicle.
Another embodiment of the present invention provides a kind of rolling stock; This rolling stock comprises bogies for railway vehicles; And be arranged on the said bogies for railway vehicles car body wherein, this bogies for railway vehicles can be any one of bogies for railway vehicles that the foregoing description provides.This rolling stock realized wheel better elasticity location, and the three-way rigidity value of even more ideal single stage suspension system can be provided, and realizes the target of wheel track low dynamic action.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (10)
1. bogies for railway vehicles; Comprise two groups of wheels to, be arranged on the adapter on the wheel set bearing; And be arranged on the bogie side frame on two adapters of homonymy, and it is characterized in that, between the horizontal contact surface of the side frame guide of said adapter and bogie side frame, be provided with first cushion; Between the side direction contact surface of said adapter and said side frame guide, respectively be provided with one second cushion.
2. bogies for railway vehicles according to claim 1 is characterized in that, the inside of said first cushion and said second cushion is rubber bodies, is provided with the metal locating plate on the upper and lower surface of said rubber bodies.
3. bogies for railway vehicles according to claim 2 is characterized in that, comprises the multilayer rubber body in said first cushion, and is provided with metal typing dividing plate between the adjacent two layers rubber bodies.
4. according to claim 1 or 2 or 3 described bogies for railway vehicles, it is characterized in that said first cushion is square structure or circular configuration.
5. bogies for railway vehicles according to claim 1 is characterized in that, is respectively arranged with the straight pin that the knock hole that is provided with on the horizontal contact surface that is used for said adapter and said side frame guide cooperates on the upper and lower surface of said first cushion.
6. bogies for railway vehicles according to claim 1; It is characterized in that; One side of said second cushion is provided with convexity, is respectively arranged with the groove that is used for laterally blocking said second cushion on the side direction contact surface of said adapter and said side frame guide.
7. according to claim 1 or 6 described bogies for railway vehicles, it is characterized in that the two ends up and down of the side direction contact surface of said side frame guide are provided with and are used for the vertical stop block that blocks said second cushion.
8. bogies for railway vehicles according to claim 2 is characterized in that, the rubber bodies in said second cushion is horizontal splayed structure.
9. bogies for railway vehicles according to claim 1 is characterized in that, said adapter the side direction contact surface be obliquely installed from the top down.
10. a rolling stock is characterized in that, comprises like the arbitrary described bogies for railway vehicles of claim 1 to 9, and is arranged on the car body on the said bogies for railway vehicles.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105573162A CN102476643A (en) | 2010-11-22 | 2010-11-22 | Railway vehicle steering frame and railway vehicle |
| PCT/CN2011/074761 WO2012068849A1 (en) | 2010-11-22 | 2011-05-27 | Bogie of railway vehicle and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105573162A CN102476643A (en) | 2010-11-22 | 2010-11-22 | Railway vehicle steering frame and railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102476643A true CN102476643A (en) | 2012-05-30 |
Family
ID=46089442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105573162A Pending CN102476643A (en) | 2010-11-22 | 2010-11-22 | Railway vehicle steering frame and railway vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102476643A (en) |
| WO (1) | WO2012068849A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975735A (en) * | 2012-08-27 | 2013-03-20 | 齐齐哈尔轨道交通装备有限责任公司 | Spring vibration attenuation damping device and bogie applying with the same |
| CN104334434A (en) * | 2012-06-14 | 2015-02-04 | 川崎重工业株式会社 | Railroad car platform car comprising axle spring |
| RU2545136C2 (en) * | 2012-12-06 | 2015-03-27 | Григорий Михайлович Кристалинский | Freight car bogie solebar |
| CN104724134A (en) * | 2015-04-09 | 2015-06-24 | 齐齐哈尔轨道交通装备有限责任公司 | Railway wagon bogie |
| CN108238061A (en) * | 2018-02-09 | 2018-07-03 | 中车长江车辆有限公司 | Flexible axle box and its assembly method and bogie |
| CN108463389A (en) * | 2016-02-15 | 2018-08-28 | 庞巴迪运输有限公司 | Wheel shaft guidance set with longitudinal hydraulic-mechanic converter and associated drive means |
| WO2019154439A1 (en) * | 2018-02-09 | 2019-08-15 | 中车长江车辆有限公司 | Flexible axle box, assembly method therefor and bogie |
| WO2021022901A1 (en) * | 2019-08-02 | 2021-02-11 | 中车唐山机车车辆有限公司 | Bogie and rail vehicle |
| CN112937625A (en) * | 2021-01-08 | 2021-06-11 | 江苏纽尔轨道车辆科技有限公司 | Railway wagon and bogie thereof |
| CN114228768A (en) * | 2022-01-04 | 2022-03-25 | 西南交通大学 | Bogie of inner axle box of railway vehicle |
| CN114312890A (en) * | 2022-01-24 | 2022-04-12 | 中国铁建高新装备股份有限公司 | Bogie and vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013224606A1 (en) * | 2013-11-29 | 2015-06-03 | Siemens Aktiengesellschaft | Connection of a secondary spring to a car body |
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| EP0613809A1 (en) * | 1993-03-01 | 1994-09-07 | INSTITUT FÜR SCHIENENFAHRZEUGE GmbH | High speed bogie for railway wagon |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104334434A (en) * | 2012-06-14 | 2015-02-04 | 川崎重工业株式会社 | Railroad car platform car comprising axle spring |
| CN102975735A (en) * | 2012-08-27 | 2013-03-20 | 齐齐哈尔轨道交通装备有限责任公司 | Spring vibration attenuation damping device and bogie applying with the same |
| CN102975735B (en) * | 2012-08-27 | 2015-11-25 | 齐齐哈尔轨道交通装备有限责任公司 | A kind of spring damping damping arrangement and apply the bogie truck of this device |
| RU2545136C2 (en) * | 2012-12-06 | 2015-03-27 | Григорий Михайлович Кристалинский | Freight car bogie solebar |
| CN104724134A (en) * | 2015-04-09 | 2015-06-24 | 齐齐哈尔轨道交通装备有限责任公司 | Railway wagon bogie |
| CN108463389A (en) * | 2016-02-15 | 2018-08-28 | 庞巴迪运输有限公司 | Wheel shaft guidance set with longitudinal hydraulic-mechanic converter and associated drive means |
| CN108463389B (en) * | 2016-02-15 | 2020-09-25 | 庞巴迪运输有限公司 | Wheel axle guide assembly with longitudinal hydromechanical converter and associated transmission |
| CN108238061A (en) * | 2018-02-09 | 2018-07-03 | 中车长江车辆有限公司 | Flexible axle box and its assembly method and bogie |
| WO2019154439A1 (en) * | 2018-02-09 | 2019-08-15 | 中车长江车辆有限公司 | Flexible axle box, assembly method therefor and bogie |
| WO2021022901A1 (en) * | 2019-08-02 | 2021-02-11 | 中车唐山机车车辆有限公司 | Bogie and rail vehicle |
| CN112937625A (en) * | 2021-01-08 | 2021-06-11 | 江苏纽尔轨道车辆科技有限公司 | Railway wagon and bogie thereof |
| CN114228768A (en) * | 2022-01-04 | 2022-03-25 | 西南交通大学 | Bogie of inner axle box of railway vehicle |
| CN114228768B (en) * | 2022-01-04 | 2024-02-27 | 西南交通大学 | Axle box bogie in rail vehicle |
| CN114312890A (en) * | 2022-01-24 | 2022-04-12 | 中国铁建高新装备股份有限公司 | Bogie and vehicle |
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| Publication number | Publication date |
|---|---|
| WO2012068849A1 (en) | 2012-05-31 |
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Application publication date: 20120530 |