CN105946889A - Integrated wheel set positioning device used for radial bogie - Google Patents
Integrated wheel set positioning device used for radial bogie Download PDFInfo
- Publication number
- CN105946889A CN105946889A CN201610304174.6A CN201610304174A CN105946889A CN 105946889 A CN105946889 A CN 105946889A CN 201610304174 A CN201610304174 A CN 201610304174A CN 105946889 A CN105946889 A CN 105946889A
- Authority
- CN
- China
- Prior art keywords
- rubber
- mounting seat
- actuator
- metal pad
- rubber metal
- 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
Links
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
- B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
- B61F5/386—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles fluid actuated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to an integrated wheel set positioning device used for a radial bogie. The integrated wheel set positioning device is used for positioning and connecting of a wheel set and a bogie frame (1) and comprises a shaft box (2), an actuator longitudinal positioning unit and a rubber-metal pad transverse positioning unit. The wheel set and the bogie frame (1) are positioned and connected through the shaft box (2). The actuator longitudinal positioning unit is connected with the shaft box (2) and the bogie frame (1) to conduct longitudinal positioning. The rubber-metal pad transverse positioning unit is connected with the shaft box (2) and the bogie frame (1) to conduct transverse positioning. Compared with the prior art, the integrated wheel set positioning device used for the radial bogie has the advantages of being compact in layout, simple in structure, convenient to dissemble, assemble and maintain, good in longitudinal and transverse positioning effects and the like.
Description
Technical field
The present invention relates to a kind of wheel positioner, especially relate to a kind of integral type for radial steering and take turns
To positioner.
Background technology
Traditional rail vehicle truck is to ensure the operation stability under fair speed, and wheel is to longitudinal register rigidity all
The biggest.When vehicle orbits, the axletree of same bogie almost keeping parallelism.So, turn to
Frame when by curve (especially sharp radius curve), the outboard wheels of its front-wheel pair will and rail produce the angle of attack,
The existence of the angle of attack makes wheel rim contact with rail, on the one hand the abrasion inside wheel rim and rail is increased, and produces song
Line " is uttered long and high-pitched sounds ", on the other hand makes wheel be prone to climbing, increases the danger of derailing.
In order to improve speed and the performance that curve passing through (especially sharp radius curve) passes through, it is ensured that safety in operation,
Radial steering arises at the historic moment.When radial steering is by curve, front axle and rear axle are all to sweep direction deflection
And occupying radial position so that the angle of attack reduces.Actively radial steering is the one of radial steering, at bogie
During by curve, actuator is used to promote wheel to making it sentence curve radial position so that the angle of attack is zero.But it is traditional
The longitudinal rigidity of the axle-box positioning device of rail vehicle is bigger so that promotes wheel relatively big to the power of movement, so can increase
The size of big actuator, is unfavorable for the Integrated design of bogie.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of compact in design,
The integral type for radial steering of simple in construction is taken turns positioner.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of integral type for radial steering is taken turns positioner, for wheel to and bogie frame location even
Connecing, this device includes axle box, actuator longitudinal register unit and rubber metal pad located lateral unit, take turns to and bogie
Framework is located by connecting by described axle box, and wherein said actuator longitudinal register unit connects axle box and turns
Carrying out longitudinal register to framework frame, described rubber metal pad located lateral unit connects axle box and bogie frame carries out horizontal stroke
To location.
Described actuator longitudinal register unit include actuator body, the first rubber arthrosis, the second rubber arthrosis,
Actuator the first mounting seat and actuator the second mounting seat, described actuator the first mounting seat is arranged on axle box,
Described actuator the second mounting seat is arranged on bogie frame, and the first rubber is passed through in described actuator body one end
Glue joint is fixing with actuator the first mounting seat to be connected, and the actuator body other end passes through the second rubber arthrosis and start
Device the second mounting seat is fixing to be connected；
During this body action of actuator, the first rubber arthrosis and the second rubber arthrosis by actuator body two ends are carried out
Take turns to and the longitudinal register of bogie frame, when actuator body is failure to actuate, actuator body becomes two power bars, still
By first rubber arthrosis at actuator body two ends and the second rubber arthrosis carry out taking turns to and bogie frame indulge
To location.
Described actuator body two ends are correspondingly provided with installation the first rubber arthrosis and the installing hole of the second rubber arthrosis,
The first described rubber arthrosis and the second rubber arthrosis are connected through installing hole and actuator body are fixing, the first rubber
Two ends, joint respectively with actuator the first mounting seat clamping, the second rubber arthrosis two ends are installed with actuator second respectively
Seat clamping.
Described actuator the first mounting seat and actuator the second mounting seat are correspondingly provided with and the first rubber arthrosis respectively
Draw-in groove with the second rubber arthrosis two ends coupling.
Described rubber metal pad located lateral unit includes that rubber metal pad, rubber metal pad the first mounting seat and rubber metal pad second are installed
Seat, described rubber metal pad the first mounting seat is arranged on axle box, and described rubber metal pad the second mounting seat is arranged on and turns to
On framework frame, described rubber metal pad arranges two, and one end of two rubber metal pads is separately mounted to rubber metal pad first and installs
In seat, the other end is separately mounted in rubber metal pad the second mounting seat.
Described rubber metal pad the first mounting seat includes mounting seat body and the first circular counter bore of mounting seat body both sides,
Each rubber metal pad one end is respectively equipped with the first boss mated with the first described circular counter bore, and two rubber metal pad symmetries set
Putting in rubber metal pad the first mounting seat body both sides, the first described boss snaps in the first described circular counter bore to carry out determining
Position.
Each rubber metal pad other end is respectively equipped with the second boss, described rubber metal pad the second mounting seat correspondence position be provided with
Second circular counter bore of the second described boss coupling, the second described boss snaps in the second circular counter bore to carry out determining
Position.
Described rubber metal pad is multilayer steel plates and the rubber layer integrated elastic rubber metal pad through vulcanizing.
Compared with prior art, present invention have the advantage that
(1) positioner of the present invention is respectively by the actuator longitudinal register unit being integrated on axle box and rubber
Heap located lateral unit realize wheel to and bogie frame be located by connecting, actuator longitudinal register unit realizes longitudinally
Location, rubber metal pad located lateral unit realizes located lateral, and then longitudinal register function and located lateral function is divided
Untie, compact in design, simple in construction, dismount easy to maintenance；
(2) the actuator positioning unit of the present invention by the first rubber arthrosis and the second rubber arthrosis realize wheel to
Longitudinal register, when actuator is failure to actuate, oil cylinder self-locking, actuator becomes two power bars, by actuator body two ends
Rubber arthrosis provide take turns to longitudinal register, it is ensured that the safety of vehicle, the rubber at actuator body two ends
Joint is simple, just with the connected mode of actuator body and actuator the first mounting seat and actuator the second mounting seat
Replace in dismounting, can be by adjusting the structure of the rubber arthrosis at actuator body two ends so that wheel is at longitudinal tool
Having suitable rigidity, meet demanding kinetics when vehicle runs, longitudinal register is effective；
(3) rubber metal pad of the present invention is multilayer steel plates and the rubber layer integrated elastic rubber metal pad through vulcanizing,
Having the advantages that the big radial rigidity of axial rigidity is little, radial deformation capabilities is big, can meet stroke during actuator action
Requirement, simultaneously by adjusting the number of plies and the thickness of steel plate and rubber layer, so that wheel is to laterally having suitably
Rigidity, meets demanding kinetics when vehicle runs, and located lateral is effective.
Accompanying drawing explanation
Fig. 1 is that the integral type wheel of the present invention is to the overall structure schematic diagram after positioner and bogie frame installation；
Fig. 2 is that the integral type of the present invention is taken turns axle box, actuator longitudinal register unit and rubber metal pad in positioner
Located lateral unit installing structure schematic diagram；
Fig. 3 is the structural representation of axle box of the present invention.
In figure, 1 is bogie frame, and 2 is axle box, and 3 is actuator body, and 4 is the first rubber arthrosis, 5
Being the second rubber arthrosis, 6 is actuator the first mounting seat, and 7 is actuator the second mounting seat, and 8 is rubber metal pad, 9
For rubber metal pad the first mounting seat, 10 is rubber metal pad the second mounting seat.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in Figures 1 to 3, a kind of integral type for radial steering is taken turns positioner, for wheel to turn to
Being located by connecting of framework frame 1, this device includes axle box 2, actuator longitudinal register unit and rubber metal pad located lateral
Unit, take turns to and bogie frame 1 be located by connecting by axle box 2, wherein actuator longitudinal register unit is even
Spindle case 2 and bogie frame 1 carry out longitudinal register, and rubber metal pad located lateral unit connects axle box 2 and bogie
Framework 1 carries out located lateral.Longitudinal register function and the located lateral Function Decomposition of location are opened by wheel, leads to respectively
Cross actuator longitudinal register unit and rubber metal pad located lateral unit realizes, and by longitudinal register function with horizontal
Positioning function is integrated on axle box 2, compact in design, and simple in construction dismounts easy to maintenance.
Wherein, actuator longitudinal register unit includes that actuator body the 3, first rubber arthrosis the 4, second rubber closes
Joint 5, actuator the first mounting seat 6 and actuator the second mounting seat 7, actuator the first mounting seat 6 is arranged on axle
On case 2, actuator the second mounting seat 7 is arranged on bogie frame 1, and actuator body 3 one end passes through first
Rubber arthrosis 4 is fixing with actuator the first mounting seat 6 to be connected, and actuator body 3 other end is closed by the second rubber
Joint 5 is fixing with actuator the second mounting seat 7 to be connected；During actuator body 3 action, by actuator body 3
First rubber arthrosis 4 at two ends and the second rubber arthrosis 5 carry out taking turns to and the longitudinal register of bogie frame 1, make
When dynamic device body 3 is failure to actuate, actuator body 3 becomes two power bars, by first rubber at actuator body 3 two ends
Glue joint 4 and the second rubber arthrosis 5 carry out taking turns to and the longitudinal register of bogie frame 1.Actuator body 3
Two ends are correspondingly provided with installation the first rubber arthrosis 4 and installing hole of the second rubber arthrosis 5, the first rubber arthrosis 4
Being connected through installing hole is fixing with actuator body 3 with the second rubber arthrosis 5, the first rubber arthrosis 4 two ends are respectively
With actuator the first mounting seat 6 clamping, the second rubber arthrosis 5 two ends respectively with actuator the second mounting seat 7 clamping.
Actuator the first mounting seat 6 and actuator the second mounting seat 7 are correspondingly provided with and the first rubber arthrosis 4 and second respectively
The draw-in groove of rubber arthrosis 5 two ends coupling.By adjusting the first rubber arthrosis 4 and structure of the second rubber arthrosis 5,
And the corresponding draw-in groove in actuator the first mounting seat 6 and actuator the second mounting seat 7, can make to take turns vertical
To having suitable locating stiffness, meet demanding kinetics when vehicle runs.
Rubber metal pad located lateral unit includes rubber metal pad 8, rubber metal pad the first mounting seat 9 and rubber metal pad the second mounting seat
10, rubber metal pad the first mounting seat 9 is arranged on axle box 2, and rubber metal pad the second mounting seat 10 is arranged on steering structure
On frame 1, rubber metal pad 8 arranges two, and one end of two rubber metal pads 8 is separately mounted to rubber metal pad the first mounting seat 9
In, the other end is separately mounted in rubber metal pad the second mounting seat 10.Rubber metal pad the first mounting seat 9 includes mounting seat
Body and the first circular counter bore of mounting seat body both sides, each rubber metal pad 8 one end is respectively equipped with and the first circular counter bore
First boss of coupling, two rubber metal pads 8 are symmetricly set on rubber metal pad the first mounting seat 9 body both sides, and first is convex
Decometer enters the first circular counter bore and positions.Each rubber metal pad 8 other end is respectively equipped with the second boss, rubber metal pad second
Mounting seat 10 correspondence position is provided with the second circular counter bore mated with the second boss, and it is circular that the second boss snaps in second
Counterbore positions.Rubber metal pad 8 is multilayer steel plates and the rubber layer integrated elastic rubber metal pad through vulcanizing.Should
Rubber metal pad 8 has the advantages that the big radial rigidity of axial rigidity is little, and radial deformation capabilities is big, can meet actuator action
Time range demands, by adjusting the number of plies and the thickness of steel plate and rubber layer when additionally making rubber metal pad 8, it is possible to make
Must take turns laterally having suitable rigidity, meet demanding kinetics when vehicle runs.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use to send out
Bright.These embodiments obviously easily can be made various amendment by person skilled in the art, and at this
The General Principle illustrated is applied in other embodiments without through performing creative labour.Therefore, the present invention does not limits
In above-described embodiment, those skilled in the art are according to the announcement of the present invention, without departing from changing that scope is made
Entering and revise all should be within protection scope of the present invention.
Claims (8)
1. for radial steering integral type take turns to a positioner, for wheel to and bogie frame (1)
Be located by connecting, it is characterised in that this device includes that axle box (2), actuator longitudinal register unit and rubber metal pad are horizontal
To positioning unit, take turns to and bogie frame (1) be located by connecting by described axle box (2), Qi Zhongsuo
The actuator longitudinal register unit stated connects axle box (2) and bogie frame (1) carries out longitudinal register, described
Rubber metal pad located lateral unit connects axle box (2) and bogie frame (1) carries out located lateral.
A kind of integral type for radial steering the most according to claim 1 is taken turns positioner, and it is special
Levy and be, described actuator longitudinal register unit include actuator body (3), the first rubber arthrosis (4),
Two rubber arthrosis (5), actuator the first mounting seat (6) and actuator the second mounting seat (7), described start
Device the first mounting seat (6) is arranged on axle box (2), and described actuator the second mounting seat (7) is arranged on and turns
On framework frame (1), the first rubber arthrosis (4) and actuator are passed through in described actuator body (3) one end
First mounting seat (6) is fixing to be connected, and actuator body (3) other end is by the second rubber arthrosis (5) and work
Dynamic device the second mounting seat (7) is fixing to be connected；
During actuator body (3) action, by first rubber arthrosis (4) at actuator body (3) two ends and
Second rubber arthrosis (5) carry out taking turns to and the longitudinal register of bogie frame (1), actuator body (3) is no
During action, actuator body (3) becomes two power bars, and the first rubber yet by actuator body (3) two ends closes
Joint (4) and the second rubber arthrosis (5) carry out taking turns to and the longitudinal register of bogie frame (1).
A kind of integral type for radial steering the most according to claim 2 is taken turns positioner, and it is special
Levying and be, described actuator body (3) two ends are correspondingly provided with installation the first rubber arthrosis (4) and the second rubber
The installing hole in joint (5), described the first rubber arthrosis (4) and the second rubber arthrosis (5) pass installing hole
Fixing with actuator body (3) be connected, the first rubber arthrosis (4) two ends respectively with actuator the first mounting seat (6)
Clamping, the second rubber arthrosis (5) two ends respectively with actuator the second mounting seat (7) clamping.
A kind of integral type for radial steering the most according to claim 3 is taken turns positioner, and it is special
Levy and be, described actuator the first mounting seat (6) and actuator the second mounting seat (7) be correspondingly provided with respectively with
First rubber arthrosis (4) and the draw-in groove of the second rubber arthrosis (5) two ends coupling.
A kind of integral type for radial steering the most according to claim 1 is taken turns positioner, and it is special
Levy and be, described rubber metal pad located lateral unit include rubber metal pad (8), rubber metal pad the first mounting seat (9) and
Rubber metal pad the second mounting seat (10), described rubber metal pad the first mounting seat (9) is arranged on axle box (2), institute
The rubber metal pad the second mounting seat (10) stated is arranged on bogie frame (1), and described rubber metal pad (8) is arranged
Two, one end of two rubber metal pads (8) is separately mounted in rubber metal pad the first mounting seat (9), and the other end is respectively
It is arranged in rubber metal pad the second mounting seat (10).
A kind of integral type for radial steering the most according to claim 5 is taken turns positioner, and it is special
Levying and be, described rubber metal pad the first mounting seat (9) includes mounting seat body and the first of mounting seat body both sides
Circular counter bore, each rubber metal pad (8) one end is respectively equipped with the first boss mated with the first described circular counter bore,
Two rubber metal pads (8) are symmetricly set on rubber metal pad the first mounting seat (9) body both sides, the first described boss card
Enter the first described circular counter bore to position.
A kind of integral type for radial steering the most according to claim 6 is taken turns positioner, and it is special
Levying and be, each rubber metal pad (8) other end is respectively equipped with the second boss, described rubber metal pad the second mounting seat (10)
Correspondence position is provided with the second circular counter bore mated with the second described boss, and the second described boss snaps in the second circle
Shape counterbore positions.
A kind of integral type for radial steering the most according to claim 5 is taken turns positioner, and it is special
Levying and be, described rubber metal pad (8) is multilayer steel plates and the rubber layer integrated elastic rubber metal pad through vulcanizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304174.6A CN105946889A (en) | 2016-05-10 | 2016-05-10 | Integrated wheel set positioning device used for radial bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304174.6A CN105946889A (en) | 2016-05-10 | 2016-05-10 | Integrated wheel set positioning device used for radial bogie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105946889A true CN105946889A (en) | 2016-09-21 |
Family
ID=56914488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610304174.6A Pending CN105946889A (en) | 2016-05-10 | 2016-05-10 | Integrated wheel set positioning device used for radial bogie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105946889A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980222A (en) * | 2018-10-11 | 2018-12-11 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of gear-box and rail traffic vehicles |
| CN109178015A (en) * | 2018-09-27 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of axle box swivel arm system, one are positioning rubber heap and its installation method |
| CN110198879A (en) * | 2017-01-30 | 2019-09-03 | 川崎重工业株式会社 | Railcar bogie |
| CN111114575A (en) * | 2019-12-24 | 2020-05-08 | 同济大学 | Embedded butt-joint type axle box positioning device capable of actively adjusting longitudinal displacement |
| CN111232007A (en) * | 2020-01-08 | 2020-06-05 | 同济大学 | Elastic bag active longitudinal positioning and driving device arranged in axle box |
| WO2020173236A1 (en) * | 2019-02-28 | 2020-09-03 | 马鞍山蓝信环保科技有限公司 | High-speed train bogie |
| CN112977521A (en) * | 2021-04-22 | 2021-06-18 | 中车青岛四方机车车辆股份有限公司 | Radial bogie and rail vehicle |
| CN115195800A (en) * | 2022-08-11 | 2022-10-18 | 中车青岛四方机车车辆股份有限公司 | Active radial bogie and railway vehicle |
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| JPH08324426A (en) * | 1995-05-29 | 1996-12-10 | Sumitomo Metal Ind Ltd | Axle box supporting device for rolling stock |
| CN101223069A (en) * | 2005-07-13 | 2008-07-16 | 韩国铁道技术研究院 | Steering bogie for railway vehicles |
| KR20090059534A (en) * | 2007-12-06 | 2009-06-11 | 한국철도기술연구원 | The steering bogie with variable damper for railway vehicle |
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| JP5414313B2 (en) * | 2009-03-12 | 2014-02-12 | 川崎重工業株式会社 | Rail car axle box support device |
| CN103764476A (en) * | 2011-07-21 | 2014-04-30 | 新日铁住金株式会社 | Railway vehicle steering truck |
| CN105216821A (en) * | 2015-09-24 | 2016-01-06 | 南车南京浦镇车辆有限公司 | A kind of passenger car bogie |
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| JPH08324426A (en) * | 1995-05-29 | 1996-12-10 | Sumitomo Metal Ind Ltd | Axle box supporting device for rolling stock |
| CN101223069A (en) * | 2005-07-13 | 2008-07-16 | 韩国铁道技术研究院 | Steering bogie for railway vehicles |
| CN101489851A (en) * | 2006-05-31 | 2009-07-22 | 勃姆巴迪尔运输有限公司 | Method for regulating an active chassis of a tracked vehicle |
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| CN201300859Y (en) * | 2008-10-10 | 2009-09-02 | 长春轨道客车股份有限公司 | Primary suspension duplex pull rod positioning device of steering frame |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110198879A (en) * | 2017-01-30 | 2019-09-03 | 川崎重工业株式会社 | Railcar bogie |
| CN109178015A (en) * | 2018-09-27 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of axle box swivel arm system, one are positioning rubber heap and its installation method |
| CN108980222A (en) * | 2018-10-11 | 2018-12-11 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of gear-box and rail traffic vehicles |
| WO2020173236A1 (en) * | 2019-02-28 | 2020-09-03 | 马鞍山蓝信环保科技有限公司 | High-speed train bogie |
| CN111114575A (en) * | 2019-12-24 | 2020-05-08 | 同济大学 | Embedded butt-joint type axle box positioning device capable of actively adjusting longitudinal displacement |
| CN111232007A (en) * | 2020-01-08 | 2020-06-05 | 同济大学 | Elastic bag active longitudinal positioning and driving device arranged in axle box |
| CN111232007B (en) * | 2020-01-08 | 2021-05-11 | 同济大学 | Elastic bag active longitudinal positioning and driving device arranged in axle box |
| CN112977521A (en) * | 2021-04-22 | 2021-06-18 | 中车青岛四方机车车辆股份有限公司 | Radial bogie and rail vehicle |
| CN112977521B (en) * | 2021-04-22 | 2022-07-15 | 中车青岛四方机车车辆股份有限公司 | Radial bogie and rail vehicle |
| CN115195800A (en) * | 2022-08-11 | 2022-10-18 | 中车青岛四方机车车辆股份有限公司 | Active radial bogie and railway vehicle |
| CN115195800B (en) * | 2022-08-11 | 2024-09-20 | 中车青岛四方机车车辆股份有限公司 | Active radial bogie and railway vehicle |
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