CN108163002B - A kind of straddle type monorail vehicle framework and its bogie - Google Patents

A kind of straddle type monorail vehicle framework and its bogie Download PDF

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Publication number
CN108163002B
CN108163002B CN201810001111.2A CN201810001111A CN108163002B CN 108163002 B CN108163002 B CN 108163002B CN 201810001111 A CN201810001111 A CN 201810001111A CN 108163002 B CN108163002 B CN 108163002B
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CN
China
Prior art keywords
mounting base
crossbeam
hollow cavity
base
mounting
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Application number
CN201810001111.2A
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Chinese (zh)
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CN108163002A (en
Inventor
刘余龙
沈龙江
李冠军
彭爱林
吴才香
刘金菊
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中车株洲电力机车有限公司
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Priority to CN201810001111.2A priority Critical patent/CN108163002B/en
Publication of CN108163002A publication Critical patent/CN108163002A/en
Application granted granted Critical
Publication of CN108163002B publication Critical patent/CN108163002B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F5/00Constructional 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
    • B61F5/50Other details
    • B61F5/52Bogie frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F1/00Underframes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F5/00Constructional 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

Abstract

The invention discloses a kind of straddle type monorail vehicle frameworks, a pair of of curb girder including inverted T-shape while the crossbeam connecting with the vertical portion upper end of two curb girders;A driving device mounting base is equipped on the longitudinal terminal surface of each curb girder and crossbeam join domain, and two driving device mounting bases are symmetrical relative to the vertical central axis of crossbeam;The outside of driving device mounting base is equipped with traction electric machine installation base, inside is equipped with axle installation base, and traction electric machine installation base is equipped with axis hole, and the axis hole is parallel with crossbeam, and penetrates through to axle installation base.The bogie equipped with this kind of framework is additionally provided simultaneously.The present invention is while improving transmission efficiency, so that driving device is abutted with axle, entire drive system assembly is more compact, and frame construction is simpler, reduces amount of parts, reduces costs, and improves a traveling comfort and comfort.

Description

A kind of straddle type monorail vehicle framework and its bogie

Technical field

The invention belongs to field of track traffic, and in particular to a kind of straddle type monorail vehicle framework and its bogie.

Background technique

There are mainly two types of structure types at present for straddle-type monorail bogie, and one is each bogies to be equipped with two axles, Every axle installs the twin axle bogie of two travelling wheels;Another is that each bogie is equipped with an axle, every axis peace Fill the single axle bogie of two travelling wheels.No matter twin shaft or single shaft, sit-astride bogie is both needed to configuration directive wheel and stabilization Wheel.General orientation wheel is four, and the top half of track girder is clamped in each two of the two sides of track girder.Steady wheel be two or Four, clamp the lower half portion of track girder.Directive wheel, steady wheel embrace track girder from three directions together with travelling wheel, to protect Hold vehicle stabilization operation.

In the prior art, straddle type monorail vehicle framework generally uses " day " character form structure, by curb girder, crossbeam and end carriage group At curb girder is used for installation center pin, traction device and lateral suspension for installing directive wheel, steady wheel and driving device, crossbeam Device, end carriage is for installing urgent wheel.For the ease of the installation and removal of tire, cantilevered axle, cantilevered vehicle are generally used The connection of axis and framework is the difficult point of frame design, and in addition more stringent requirements are proposed to bearing type selecting for cantilevered axle.

Chinese patent ZL201520516445.5 discloses a kind of single-rail power bogie frame, and framework is by crossbeam, curb girder And end carriage composition, four directive wheel mounting bases of coupling part setting of truck side sill and end carriage extend downwardly one in curb girder bottom Root cantilever is for installing directive wheel.Motor installation direction is parallel with curb girder, and axle mounting hole is located at one end of curb girder, with another Curb girder is arranged at skew symmetry.

Chinese patent ZL201620580467.2 discloses a kind of gyrocar bogie, the framework and patent of the patent ZL201520516445.5 is substantially similar.

The framework and bogie of the prior art including above-mentioned cited patents are primarily present following defect:

1. traction electric machine is generally arranged with drive shaft angle in 90 ° for twin axle single rail bogie, need to be arranged cone Tooth transmission, influences transmission efficiency.

2. anti-side rolling ability is poor, vehicle traveling comfort and comfort are influenced.

3. bogie structure is complicated and layout is unreasonable, space not enough optimizes.

In addition, being defined to the direction vocabulary being previously mentioned in this case, in track vehicular field, technical staff usually recognizes There are three types of fixed directions:

It is vertical: vertically perpendicular to the direction of rail level.

It is longitudinal: along the direction of track.

Laterally: horizontal vertical is in the direction of track.

Summary of the invention

In view of the above-mentioned problems, the present invention is intended to provide it is simple and compact for structure, transmission efficiency is high, can guarantee vehicle operation peace The straddle type monorail vehicle framework and its bogie of full property and stationarity.

The technical solution that the present invention solves the problems, such as is: a kind of straddle type monorail vehicle framework, the opposite side including inverted T-shape Beam, the crossbeam being connect simultaneously with the vertical portion upper end of two curb girders;

A driving device mounting base, and two are equipped on the longitudinal terminal surface of each curb girder and crossbeam join domain Driving device mounting base is symmetrical relative to the vertical central axis of crossbeam;

The outside of the driving device mounting base is equipped with traction electric machine installation base, inside is equipped with axle installation base, leads Draw motor installation base equipped with axis hole, the axis hole is parallel with crossbeam, and penetrates through to axle installation base.

In above scheme, traditional stud framework is replaced using the framework for being similar to gantry shape, structure it is simpler and It is compact, reduce amount of parts.Significant improvement has been done in its driving device installation holder structure and position, so that driving device is installed Position is more reasonable, more compact.

The curb girder of inverted T-shape includes horizontal part and the vertical portion vertical with horizontal part.Horizontal part and vertical portion joining place circle Arc transition.

Further, it is equipped with the first hollow cavity of perforation in the crossbeam, is equipped with mounting rail in the first hollow cavity, the peace The both ends of dress beam are stretched out out of first hollow cavity, and the second hollow cavity of perforation is equipped in mounting rail;

Draw bar attachment base is equipped in the area segments that mounting rail stretches out the first hollow cavity.

Preferably, the 4th hollow cavity for arranging shaft coupling is set in the driving device mounting base.

Preferably, the curb girder is box-structure, and pantagraph current collector mounting hole is equipped in the middle part of curb girder.Traditional frame construction is used for The structure of installation pantagraph current collector generally requires additionally to extend downwardly an arms beam, then installs pantagraph current collector in arm beam medial surface.It improves Framework afterwards is mountable pantagraph current collector, more compact structure directly on curb girder.

Further, it is equipped with directive wheel mounting base in the upper surface at the horizontal part both ends of each curb girder, at each The lower surface at the horizontal part both ends of curb girder is equipped with steady wheel mounting base;

Sky spring mounting base is respectively equipped at the top of crossbeam both ends;Position is equipped with lateral stop and transverse direction among cross rail top Damper mounting base.

Correspondingly, the present invention also provides a kind of bogie, including travelling wheel, traction electric machine, axle and above-mentioned straddle-type Gyrocar framework;

Traction electric machine is fixedly installed on traction electric machine installation base, the output shaft of traction electric machine is inserted into axis hole;

The axle include one end be fixedly connected with axle installation base the cantilevered axle with third hollow cavity, be set to The first transmission shaft and second driving shaft in three hollow cavities pass through gear pair one between the first transmission shaft and second driving shaft proximal end One end insertion axis hole of grade transmission, the first transmission shaft is interior and docks with the output shaft of traction electric machine, and the distal end of second driving shaft is set There is planetary gear, which is connected by the wheel hub of rotating cylinder and travelling wheel, is led between rotating cylinder inner wall and cantilevered axle outer surface Cross bearing support connection.

In above scheme, traditional cone tooth kind of drive is eliminated, original cantilevered axle is subjected to structure improvement, Built-in a set of transmission system in axle, and traction electric machine output shaft and axle are arranged in the same direction, improving transmission effect While rate, so that driving device is abutted with axle, entire drive system assembly is more compact.

Preferably, set the 4th hollow cavity for arranging shaft coupling in the driving device mounting base, the first transmission shaft with The output shaft of traction electric machine is connected by shaft coupling.

Further, directive wheel mounting base, directive wheel peace are equipped in the upper surface at the horizontal part both ends of each curb girder Directive wheel is installed on dress seat, the axis of directive wheel is vertically;

It is equipped with steady wheel mounting base in the lower surface at the horizontal part both ends of each curb girder, is installed in steady wheel mounting base There is steady wheel, the axis of steady wheel is vertically;

Sky spring mounting base is respectively equipped at the top of crossbeam both ends, installation is free spring in empty spring mounting base;

Position is equipped with lateral stop and lateral damper mounting base among cross rail top, sets in lateral damper mounting base There is lateral damper.

Further, it is equipped with the first hollow cavity of perforation in the crossbeam, is equipped with mounting rail in the first hollow cavity, the peace The both ends of dress beam are stretched out out of first hollow cavity, and the second hollow cavity of perforation is equipped in mounting rail;

It is equipped with draw bar attachment base in the area segments that mounting rail stretches out the first hollow cavity, is installed on the draw bar attachment base There is draw bar;

Sky spring mounting base is respectively equipped at the top of crossbeam both ends, installation is free spring in empty spring mounting base;

Further include anti-rolling device, anti-rolling device include laterally wear and be fixed in the second hollow cavity torsion bar, with The connecting rod and strut and tie that torsion bar both ends are connected by bearing;Hinged, lower end and connecting rod at the top of the strut and tie upper end and empty spring Hingedly.

Traditional straddle type monorail vehicle causes anti-side to roll ability since the limitation in space does not install anti-rolling device Difference.The improved structure of the present invention has installed anti-rolling device additional due to reasonable utilization architecture space, improves an operation Stationarity and comfort.

Further, the curb girder is box-structure, pantagraph current collector mounting hole is equipped in the middle part of curb girder, in pantagraph current collector mounting hole Pantagraph current collector is installed.

Remarkable result of the invention is:

1. eliminating traditional cone tooth kind of drive, original cantilevered axle is subjected to structure improvement, it is interior in axle A set of transmission system is set, and traction electric machine output shaft and axle are arranged in the same direction, while improving transmission efficiency, So that driving device is abutted with axle, entire drive system assembly is more compact.

2. replacing traditional stud framework using the framework for being similar to gantry shape, structure is more simple and compact, reduces Amount of parts, reduces costs.

3. having installed anti-rolling device additional, reduce vehicle and shake in operation, improves a traveling comfort and comfortable Property.

Detailed description of the invention

The present invention will be further explained below with reference to the attached drawings.

Fig. 1 is frame construction figure of the present invention.

Fig. 2 is side beam structure figure.

Fig. 3 is beam structure figure.

Fig. 4 is steering frame solid figure.

Fig. 5 is bogie side view.

Fig. 6 is transmission system internal structure chart.

In figure: 1- curb girder, 2- crossbeam, 3- sky spring mounting base, 4- lateral damper mounting base, the installation of 5- traction electric machine are convex Platform, 6- axle installation base, 7- pantagraph current collector mounting hole, 8- directive wheel mounting base, 9- steady wheel mounting base, 10- driving device peace Fill seat, 11- anti-rolling device, 12- shaft coupling, the 4th hollow cavity of 13-, 14- travelling wheel, 15- traction electric machine, 16- axle, 17- Output shaft, 18- cantilevered axle, the first transmission shaft of 19-, 20- second driving shaft, 21- mounting rail, the second hollow cavity of 22-, 23- traction Bar mounting base, 24- planetary gear, 25- rotating cylinder, 27- directive wheel, 28- steady wheel, 29- sky spring, 30- draw bar, 31- torsion bar, 32- connecting rod, 33- strut and tie, 50- axis hole.

Specific embodiment

As shown in Figures 1 to 3, a kind of straddle type monorail vehicle framework, a pair of of curb girder 1 including inverted T-shape, simultaneously with two sides The crossbeam 2 of the vertical portion upper end connection of beam 1.

A driving device mounting base 10 is equipped on the longitudinal terminal surface of 2 join domain of each curb girder 1 and crossbeam, and Two driving device mounting bases 10 are symmetrical relative to the vertical central axis of crossbeam 2.

The outside of the driving device mounting base 10 is equipped with traction electric machine installation base 5, inside is equipped with axle installation base 6, traction electric machine installation base 5 is equipped with axis hole 50, and the axis hole 50 is parallel with crossbeam 2, and penetrates through to axle installation base 6.

It is equipped with the first hollow cavity of perforation in the crossbeam 2, is equipped with mounting rail 21 in the first hollow cavity, the mounting rail 21 Both ends stretched out out of first hollow cavity, and mounting rail 21 in be equipped with perforation the second hollow cavity 22.

Draw bar attachment base 23 is equipped in the area segments that mounting rail 21 stretches out the first hollow cavity.

The 4th hollow cavity 13 for arranging shaft coupling 12 is set in the driving device mounting base 10.

The curb girder 1 is box-structure, and pantagraph current collector mounting hole 7 is equipped in the middle part of curb girder 1.

Directive wheel mounting base 8 is equipped in the upper surface at the horizontal part both ends of each curb girder 1.In each curb girder 1 The lower surface at horizontal part both ends is equipped with steady wheel mounting base 9.

Sky spring mounting base 3 is respectively equipped at the top of 2 both ends of crossbeam;2 top center position of crossbeam be equipped with lateral stop and Lateral damper mounting base 4.

As shown in figures 4-6, the present embodiment also provides a kind of bogie, including travelling wheel 14, traction electric machine 15, axle 16 And above-mentioned straddle type monorail vehicle framework.

Traction electric machine 15 is fixedly installed on traction electric machine installation base 5, the output shaft 17 of traction electric machine 15 is inserted into axis In hole 50.

The axle 16 include one end be fixedly connected with axle installation base 6 the cantilevered axle 18 with third hollow cavity, set The first transmission shaft 19 and the second driving shaft 20 being placed in third hollow cavity.First transmission shaft 19 and 20 proximal end of second driving shaft it Between pass through gear pair primary transmission.It is in one end insertion axis hole 50 of first transmission shaft 19 and logical with the output shaft of traction electric machine 15 17 Cross the docking of shaft coupling 12.The distal end of second driving shaft 20 is equipped with planetary gear 24, which passes through rotating cylinder 25 and travelling wheel 14 wheel hub connection.It is connected between 18 outer surface of 25 inner wall of rotating cylinder and cantilevered axle by bearing support.

Directive wheel 27 is installed in directive wheel mounting base 8, the axis of directive wheel 27 is vertically.

Steady wheel 28 is installed in steady wheel mounting base 9, the axis of steady wheel 28 is vertically.

Installation is free spring 29 in empty spring mounting base 3.Lateral damper is equipped in lateral damper mounting base 4.

Draw bar 30 is installed on draw bar attachment base 23.

It further include anti-rolling device 11, anti-rolling device 11 includes the torsion for laterally wearing and being fixed in the second hollow cavity 22 Bar 31, the connecting rod 32 and strut and tie 33 being connect with 31 both ends of torsion bar by bearing.33 upper end of strut and tie and empty spring 29 push up Portion is hinged, lower end and connecting rod 32 are hinged.

Pantagraph current collector is installed in the pantagraph current collector mounting hole 7.

Claims (9)

1. a kind of straddle type monorail vehicle framework, it is characterised in that: a pair of of curb girder (1) including inverted T-shape, simultaneously with two curb girders (1) crossbeam (2) of vertical portion upper end connection;
A driving device mounting base (10) is equipped on the longitudinal terminal surface of each curb girder (1) and crossbeam (2) join domain, And two driving device mounting bases (10) are symmetrical relative to the vertical central axis of crossbeam (2);
The outside of the driving device mounting base (10) is equipped with traction electric machine installation base (5), inside is equipped with axle installation base (6), traction electric machine installation base (5) is equipped with axis hole (50), and the axis hole (50) is parallel with crossbeam (2), and penetrates through to axle and pacify It fills boss (6);
It is equipped with the first hollow cavity of perforation in the crossbeam (2), is equipped with mounting rail (21), the mounting rail in the first hollow cavity (21) both ends are stretched out out of first hollow cavity, and the second hollow cavity (22) of perforation is equipped in mounting rail (21);
Draw bar attachment base (23) are equipped in the area segments that mounting rail (21) stretch out the first hollow cavity.
2. straddle type monorail vehicle framework according to claim 1, it is characterised in that: in the driving device mounting base (10) If for arranging the 4th hollow cavity (13) of shaft coupling (12).
3. straddle type monorail vehicle framework according to claim 1, it is characterised in that: the curb girder (1) is box-structure, Pantagraph current collector mounting hole (7) are equipped in the middle part of curb girder (1).
4. straddle type monorail vehicle framework according to claim 1, it is characterised in that: in the horizontal part of each curb girder (1) The upper surface at both ends is equipped with directive wheel mounting base (8), is equipped with surely in the lower surface at the horizontal part both ends of each curb girder (1) Fixed wheel mounting base (9);
Sky spring mounting base (3) is respectively equipped at the top of crossbeam (2) both ends;Lateral stop is equipped at crossbeam (2) top center position And lateral damper mounting base (4).
5. a kind of bogie, including travelling wheel (14), traction electric machine (15), it is characterised in that: further include axle (16) and on State straddle type monorail vehicle framework described in claim 1;
It is fixedly installed on traction electric machine installation base (5) traction electric machine (15), the output shaft (17) of traction electric machine (15) is inserted Enter in axis hole (50);
The axle (16) include one end be fixedly connected with axle installation base (6) the cantilevered axle (18) with third hollow cavity, The first transmission shaft (19) and second driving shaft (20) being set in third hollow cavity, the first transmission shaft (19) and second driving shaft (20) by gear pair primary transmission between proximal end, one end of the first transmission shaft (19) is inserted into axis hole (50) and and traction electric machine (15) output shaft (17) docking, the distal end of second driving shaft (20) are equipped with planetary gear (24), which passes through rotation Cylinder (25) is connect with the wheel hub of travelling wheel (14), passes through bearing support between rotating cylinder (25) inner wall and cantilevered axle (18) outer surface Connection.
6. bogie according to claim 5, it is characterised in that: set in the driving device mounting base (10) for arranging 4th hollow cavity (13) of shaft coupling (12), the first transmission shaft (19) and the output shaft (17) of traction electric machine (15) pass through shaft coupling (12) it connects.
7. bogie according to claim 5, it is characterised in that: the upper table at the horizontal part both ends of each curb girder (1) Face is equipped with directive wheel mounting base (8), is equipped in directive wheel mounting base (8) directive wheel (27), the axis edge of directive wheel (27) It is vertical;
It is equipped with steady wheel mounting base (9) in the lower surface at the horizontal part both ends of each curb girder (1), steady wheel mounting base (9) On be equipped with steady wheel (28), the axis of steady wheel (28) is vertically;
Sky spring mounting base (3) is respectively equipped at the top of crossbeam (2) both ends, installation there are free spring (29) on empty spring mounting base (3);
Lateral stop and lateral damper mounting base (4), lateral damper mounting base are equipped at crossbeam (2) top center position (4) it is equipped with lateral damper.
8. bogie according to claim 5, it is characterised in that: the first hollow cavity of perforation is equipped in the crossbeam (2), Mounting rail (21) are equipped in first hollow cavity, the both ends of the mounting rail (21) are stretched out out of first hollow cavity, and mounting rail (21) the second hollow cavity (22) of perforation is equipped in;
Draw bar attachment base (23) are equipped in the area segments that mounting rail (21) stretch out the first hollow cavity, the draw bar attachment base (23) draw bar (30) are installed on;
Sky spring mounting base (3) is respectively equipped at the top of crossbeam (2) both ends, installation there are free spring (29) on empty spring mounting base (3);
It further include anti-rolling device (11), anti-rolling device (11) includes laterally wearing and being fixed in the second hollow cavity (22) Torsion bar (31), the connecting rod (32) and strut and tie (33) being connect with torsion bar (31) both ends by bearing;On the strut and tie (33) End and hinged, lower end at the top of empty spring (29) and connecting rod (32) are hinged.
9. bogie according to claim 5, it is characterised in that: the curb girder (1) is box-structure, in curb girder (1) Portion is equipped with pantagraph current collector mounting hole (7), is equipped with pantagraph current collector in pantagraph current collector mounting hole (7).
CN201810001111.2A 2018-01-02 2018-01-02 A kind of straddle type monorail vehicle framework and its bogie CN108163002B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810001111.2A CN108163002B (en) 2018-01-02 2018-01-02 A kind of straddle type monorail vehicle framework and its bogie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810001111.2A CN108163002B (en) 2018-01-02 2018-01-02 A kind of straddle type monorail vehicle framework and its bogie
PCT/CN2018/115116 WO2019134443A1 (en) 2018-01-02 2018-11-13 Straddle type monorail vehicle framework and bogie thereof

Publications (2)

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CN108163002A CN108163002A (en) 2018-06-15
CN108163002B true CN108163002B (en) 2019-08-20

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WO (1) WO2019134443A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108163002B (en) * 2018-01-02 2019-08-20 中车株洲电力机车有限公司 A kind of straddle type monorail vehicle framework and its bogie
CN108639088A (en) * 2018-06-22 2018-10-12 中车株洲电力机车有限公司 Straddle-type monorail train and straddle-type monorail train bogie
CN108860202B (en) * 2018-08-03 2020-02-14 中车株洲电力机车有限公司 Low-floor straddle type monorail vehicle bogie and vehicle body layout
CN110155100A (en) * 2018-08-14 2019-08-23 比亚迪股份有限公司 Bogie assembly and rail vehicle
CN109178010A (en) * 2018-09-04 2019-01-11 中车株洲电力机车有限公司 A kind of straddle-type monorail train and its traction suspension

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GB1120160A (en) * 1967-03-20 1968-07-17 Alweg Gmbh Bogie for monorail vehicles
JPH04243659A (en) * 1991-01-21 1992-08-31 Toshiba Corp Straddle type monorail truck
JP2001260874A (en) * 2000-03-17 2001-09-26 Hitachi Ltd Monorail car
US7963229B2 (en) * 2008-05-29 2011-06-21 Bombardier Transportation Gmbh Monorail bogie assembly comprising a linking member
CN105905120A (en) * 2016-05-10 2016-08-31 西南交通大学 Single axle bogie transmission of straddle-type single rail vehicle
CN107499331A (en) * 2016-06-14 2017-12-22 中车长春轨道客车股份有限公司 A kind of single rail bogie and the rail vehicle with the single rail bogie
CN107499327A (en) * 2016-06-14 2017-12-22 中车长春轨道客车股份有限公司 A kind of single rail bogie and the rail vehicle with the single rail bogie
CN207631262U (en) * 2017-12-08 2018-07-20 中车株洲电力机车有限公司 A kind of connection structure of the car body and bogie of straddle-type single-track vehicle
CN108163002B (en) * 2018-01-02 2019-08-20 中车株洲电力机车有限公司 A kind of straddle type monorail vehicle framework and its bogie

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WO2019134443A1 (en) 2019-07-11

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