CN107618529A - A kind of straddle-type monorail train and its dual-axis bogie - Google Patents

A kind of straddle-type monorail train and its dual-axis bogie Download PDF

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Publication number
CN107618529A
CN107618529A CN201710963674.5A CN201710963674A CN107618529A CN 107618529 A CN107618529 A CN 107618529A CN 201710963674 A CN201710963674 A CN 201710963674A CN 107618529 A CN107618529 A CN 107618529A
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CN
China
Prior art keywords
dual
axis bogie
crossbeam
bogie
framework
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
Application number
CN201710963674.5A
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Chinese (zh)
Inventor
王湘涛
周飞
肖化友
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rail Track Vehicle Co Ltd
CRSC Railway Vehicle Co Ltd
Original Assignee
Rail Track Vehicle Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rail Track Vehicle Co Ltd filed Critical Rail Track Vehicle Co Ltd
Priority to CN201710963674.5A priority Critical patent/CN107618529A/en
Publication of CN107618529A publication Critical patent/CN107618529A/en
Pending legal-status Critical Current

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Abstract

The invention provides a kind of straddle-type monorail train and its dual-axis bogie, the dual-axis bogie includes the car body attachment means (4) above the crossbeam of framework body (2), the car body attachment means (4) include being used for the towing pin (41) being fixedly connected with the vehicle body, for installing the key seat (42) of the towing pin (41) and being arranged on the drawing pull bar (43) at the key seat (42) both ends, the both ends of the drawing pull bar (43) are connected with the framework body (2) and the key seat (42) respectively by rubber nodal point.Dual-axis bogie provided by the invention can make vertical stiffness between car body and bogie and lateral stiffness not be towed the influence of bar, consequently facilitating people make straddle-type monorail train obtain excellent riding quality by setting rational secondary spring stiffness parameters.

Description

A kind of straddle-type monorail train and its dual-axis bogie
Technical field
The present invention relates to monorail train technical field, is turned to more particularly to a kind of straddle-type monorail train and its twin shaft Frame.
Background technology
Cross-saddle single-track traffic, vehicle are run on single rail beam, and track girder is generally armored concrete or steel knot Structure, its orbit construction take ground resource it is few, landform is adaptable, can utilize ordinary road top space, while across Type monorail traffic has the unique advantages such as climbing capacity is big, radius of turn is small, the construction period is short, cost is low, has further Popularization and wide variety of space, can effectively alleviate Urban Traffic Jam Based.
At present, the dual-axis bogie of straddle-type monorail train is typically by setting traction rubber metal pad to be led to transmit to car body Gravitation, but using traction rubber metal pad stiffness parameters vertical and horizontal between car body and bogie would generally be made to be difficult to match, this Sample is unfavorable for relaxing the vibration of car body, therefore, how to improve the dual-axis bogie of straddle-type monorail train, makes car body and bogie Between vertical stiffness and lateral stiffness be not towed the influence of device, so as to be easy to the elasticity member such as secondary spring, horizontal backstop Part carries out parameter matching, improves vehicle ride comfort, becomes those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, the invention provides a kind of straddle-type monorail train and its dual-axis bogie, the dual-axis bogie can So that the vertical stiffness and lateral stiffness between car body and bogie are not towed the influence of bar, so as to be advantageous to straddle-type monorail Train obtains excellent riding quality.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of dual-axis bogie of straddle-type monorail train, including the car body connection dress above the crossbeam of framework body Put, the car body attachment means include be used for be fixedly connected with the vehicle body towing pin, the key seat for installing the towing pin and Be arranged on the drawing pull bar at the key seat both ends, the both ends of the drawing pull bar by rubber nodal point respectively with the framework body and The key seat connection.
Preferably, in above-mentioned dual-axis bogie, the framework body is included with Central Symmetry formal distribution in the crossbeam Front beam, end carriage and the arch curb girder of both sides, the drive device of Direct wheel drives type is installed below the arch curb girder, it is described The gear-box of drive device and lateral arrangement of the motor along the framework body.
Preferably, in above-mentioned dual-axis bogie, on the lower surface of the arch curb girder two are symmetrically provided with to be used for The boss of the gear-box is installed, the both sides of the gear-box are provided with the positioning spigot coordinated with the boss.
Preferably, in above-mentioned dual-axis bogie, the lateral surface of the arch curb girder is set close to the position of the crossbeam There is lateral damper bearing.
Preferably, in above-mentioned dual-axis bogie, the crossbeam is provided at both ends with spring lower support, is propped up under the spring Vertical damper bearing, the vertical damper bearing and the nearer lateral damper bearing point are provided with the outer rim of seat Not Wei Yu the crossbeam both sides.
Preferably, in above-mentioned dual-axis bogie, the vertical damper bearing and the spring lower support are integral type Structure.
Preferably, in above-mentioned dual-axis bogie, the outer rim of the spring lower support is provided with and the spring lower support For the stopping seat of integral type structure, the stopping seat is used for the anti-overcharge backstop of air spring and framework body lifting backstop.
Preferably, in above-mentioned dual-axis bogie, two horizontal backstop installations are symmetrically provided with the middle part of the crossbeam , the horizontal backstop coordinated with the key seat is installed in the horizontal backstop mounting seat.
Preferably, in above-mentioned dual-axis bogie, the towing pin offers the through hole axially extended, is located in described The both ends of round bar in through hole have screw thread, and the upper end of the round bar is fixed by flanged (FLGD) top nut and the towing pin to be connected Connect, the lower end of the round bar is provided with flanged (FLGD) lower nut, and the lower nut is located in the cavity of the crossbeam, the cavity The waist round hole extended laterally along the framework body is offered between the upper surface of the crossbeam, the round bar passes through the waist Circular hole, the lower nut are used to stop that the round bar exits from the waist round hole.
A kind of straddle-type monorail train, including dual-axis bogie, the dual-axis bogie are disclosed in above-mentioned any one Dual-axis bogie.
It can be seen from above-mentioned technical proposal, provided by the present invention in the dual-axis bogie of straddle-type monorail train, structure Longitudinal force between support body and car body is by drawing pull bar, key seat and towing pin transmission, because the both ends of drawing pull bar pass through rubber Glue node is connected with framework body and key seat respectively, and the longitudinal rigidity of rubber nodal point is far longer than its torsional rigidity and lateral deviation is firm Degree, so that drawing pull bar can have car body laterally free with catenary motion while gapless transmits longitudinal force Degree, it can be seen that, after dual-axis bogie provided by the invention, longitudinal force transfering device is to hanging down between car body and bogie Influence to rigidity and lateral stiffness is smaller, and such people just can easily pass through Proper Match air spring and transverse direction The rigidity value of stop obtains excellent riding quality.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of arrangement signal for dual-axis bogie for straddle-type monorail train that the embodiment of the present invention one provides Figure;
Fig. 2 is that Fig. 1 is top view;
Fig. 3 is A-A sectional views in Fig. 2;
Fig. 4 is the schematic diagram of part 2 in Fig. 1;
Fig. 5 is the schematic diagram of part 6 in Fig. 1.
In figure mark for:
1st, track girder;2nd, framework body;21st, end carriage;211st, auxiliary wheel mounting seat;22nd, front beam;221st, the first mounting seat; 23rd, arch curb girder;231st, boss;232nd, draw bar mounting seat;233rd, the second mounting seat;234th, lateral damper bearing;24th, it is horizontal Beam supporting leg;241st, steady wheel mounting seat;242nd, spring lower support;2421st, stopping seat;2422nd, vertical damper bearing;243rd, it is horizontal To backstop mounting seat;3rd, travelling wheel;4th, car body attachment means;41st, towing pin;42nd, key seat;43rd, drawing pull bar;44th, on spring Bearing;45th, sliding bearing;46th, round bar;461st, top nut;462nd, lower nut;47th, air spring;5th, traveling auxiliary wheel;6th, drive Dynamic device;61st, motor;62nd, gear-box;621st, mounting hole;622nd, positioning spigot;63rd, wheel hub;7th, steady wheel;71st, stable auxiliary Wheel;8th, directive wheel;81st, it is oriented to auxiliary wheel;91st, lateral damper;92nd, vertical damper;93rd, horizontal backstop.
Embodiment
In order to make it easy to understand, the invention will be further described below in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 1~Fig. 3, Fig. 1 is that a kind of twin shaft for straddle-type monorail train that the embodiment of the present invention one provides turns To the arrangement schematic diagram of frame;Fig. 2 is that Fig. 1 is top view;Fig. 3 is A-A sectional views in Fig. 2.
The dual-axis bogie that embodiment one provides includes the car body above the crossbeam (unmarked in figure) of framework body 2 Attachment means 4, car body attachment means 4 include being used for towing pin 41, the pin for installing towing pin 41 being fixedly connected with the vehicle body Seat 42 and be arranged on the drawing pull bar 43 at the both ends of key seat 42, the both ends of drawing pull bar 43 by rubber nodal point respectively with framework body 2 Connected with key seat 42.
Towing pin 41 is arranged on key seat 42 by sliding bearing 45, and the upper end of towing pin 41 is fixedly connected with the vehicle body, structure Longitudinal force between support body 2 and car body is transmitted by drawing pull bar 43, key seat 42, sliding bearing 45 and towing pin 41, towing pin 41 can rotate and slide up and down in the sliding bearing 45, due to drawing pull bar 43 both ends by rubber nodal point respectively with framework body 2 and key seat 42 connect, and the longitudinal rigidity of rubber nodal point is far longer than its torsional rigidity and cornering stiffness, so that traction is drawn Bar 43 can make car body have the horizontal and catenary motion free degree while gapless transmits longitudinal force, it can be seen that, use After dual-axis bogie provided by the invention, longitudinal force transfering device is to the vertical stiffness and lateral stiffness between car body and bogie Influence it is smaller, such people just can easily pass through the rigidity value of Proper Match air spring 47 and horizontal stop 93 To obtain excellent riding quality.
In traditional dual-axis bogie, motor is mostly to be longitudinally arranged, because axletree is lateral arrangement, so in axletree Reduction box of the increase by one with bevel gear is needed between motor to realize the transmission of power, whole transmission system gear compared with It is more so that transmission efficiency is relatively low.And whole bogie deadweight increase, cause body oscillating to aggravate.It is therefore, provided by the invention In dual-axis bogie, framework body 2 is included with Central Symmetry formal distribution in the front beam 22, end carriage 21 and arch side of crossbeam both sides Beam 23, as shown in Figure 1, Figure 4 and Figure 5, the lower section of arch curb girder 23 are provided with the drive device 6 of Direct wheel drives type, drive device 6 Gear-box 62 and lateral arrangement of the motor 61 along framework body 2., can be in the upper of arch curb girder 23 in order to connect drawing pull bar 43 Surface sets draw bar mounting seat 232 close to the position of crossbeam.
Referring to Fig. 5, drive device 6 includes motor 61, gear-box 62 and the wheel hub 63 of lateral arrangement, using Direct wheel drives type Drive device 6, motor shaft is parallel with axletree, it is not necessary to bevel gear transmission, have it is compact-sized, it is in light weight the advantages of, Advantageously reduce the weight of bogie itself.
It is symmetrical on the lower surface of arch curb girder 23 in order to which drive device 6 is installed on framework body 2 in embodiment one Ground is provided with two boss 231 for being used to install gear-box 62, and the both sides of gear-box 62 are provided with the positioning coordinated with boss 231 Seam 622, as seen from Figure 5, mounting hole 621 is provided with the platform near positioning spigot 622, the housing of motor 61 passes through flange It is connected with gear-box 62.
Referring to Fig. 1 and Fig. 4, travelling wheel 3 is arranged between front beam 22 and arch curb girder 23, and front beam 22 is close to end carriage 21 Position be provided with the first mounting seat 221 for installing directive wheel 8, and arch curb girder 23 is provided with close to the position of end carriage 21 For installing the second mounting seat 233 of directive wheel 8, at the middle part of framework body 2, crossbeam is provided at both ends with crossbeam supporting leg 24, crossbeam The lower end of supporting leg 24 is provided with the steady wheel mounting seat 241 for installing steady wheel 7, and the upper end of crossbeam supporting leg 24 is provided with spring Undersetting 242, two horizontal backstop mounting seats 243 are symmetrically provided with the middle part of crossbeam.
In traditional dual-axis bogie, shock absorber is frequently disposed in framework central cavity, is unfavorable for repair and maintenance.For This, in dual-axis bogie provided by the invention, lateral vibration absorbing is provided with the lateral surface of arch curb girder 23 close to the position of crossbeam Device bearing 234, as shown in figure 4, being provided with vertical damper bearing 2422, Vertical Vibration Reduction in the outer rim of spring lower support 242 Device bearing 2422 is located at the both sides of crossbeam with nearer lateral damper bearing 234 respectively.
From Fig. 2 and Fig. 3, air spring 47 is located at upper bracket of the spring 44 (upper bracket of the spring 44 is fixedly connected with the vehicle body) Between spring lower support 242, upper bracket of the spring 44 is provided with the lateral damper branch corresponding with lateral damper bearing 234 Seat and the vertical damper bearing corresponding with vertical damper bearing 2422, the connecting spring upper bracket 44 of lateral damper 91 with Arch curb girder 23, the connecting spring upper bracket 44 of vertical damper 92 and spring lower support 242.So, by lateral damper 91 with Vertical damper 92 is arranged in the outside of framework body 2, and easy access is safeguarded.
In specific practical application, vertical damper bearing 2422 and spring lower support 242 can be integral type structure, implement In example one, the outer rim of spring lower support 242 is additionally provided with the stopping seat 2421 with spring lower support 242 for integral type structure, only Block seat 2421 is used for 47 anti-overcharge backstop of air spring and the lifting backstop of framework body 2.
Referring to Fig. 3, the horizontal backstop 93 coordinated with key seat 42 is installed in horizontal backstop mounting seat 243, towing pin 41 is opened Provided with the through hole (in figure unmarked) axially extended, the both ends for the round bar 46 being located in through hole have screw thread, round bar 46 Upper end is fixedly connected by flanged (FLGD) top nut 4661 with towing pin 41, and the lower end of round bar 46 is provided with flanged (FLGD) lower nut 462, lower nut 462 is located in the cavity (unmarked in figure) of crossbeam, is offered between cavity and the upper surface of crossbeam along framework The waist round hole (unmarked in figure) extended laterally of body 2, round bar 46 pass through waist round hole, lower nut 462 be used to stopping round bar 46 from Waist round hole exits.Waist round hole ensures that round bar 46 is not interfered in transverse movement with framework body 2, when air spring 47 occurs persistently to fill During gas failure, the flange of lower nut 462 contacts with framework body 2, prevents car body from persistently raising, in addition when car body is together with bogie During lifting, play a part of lifting.
Referring to Fig. 1, Fig. 3 and Fig. 4, in order to improve security, end carriage 21 is provided with auxiliary wheel mounting seat 211, so that Both ends (i.e. the longitudinal direction of track girder 1) the installation traveling auxiliary wheel 5 of framework body 2, support bogie is played in 3 deficency of travelling wheel Effect, and ensure that vehicle being capable of degraded running.
It is also equipped with stablizing auxiliary wheel 71 on framework body 2 and is oriented to auxiliary wheel 81, plays a part of preventing overload, and work as Directive wheel 8 is with ensureing that vehicle being capable of degraded running during 7 deficency of steady wheel.
Embodiment two
Embodiment two differs only in embodiment one, and the mounting structure between drive device 6 and framework body 2 is different, In embodiment two, in order to which drive device 6 is installed on framework body 2, the side with arch curb girder 23 is provided with gear-box 62 Surface engagement flange, drive device 6 is fixed on arch curb girder 23 by the mounting hole on flange.
The present invention also provides a kind of straddle-type monorail train, and the straddle-type monorail train includes double disclosed in above-described embodiment Axle bogie.Because dual-axis bogie disclosed in above-described embodiment has above-mentioned technique effect, therefore there is the dual-axis bogie Straddle-type monorail train equally there is above-mentioned technique effect, repeat no more herein.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention. A variety of modifications to embodiment will be apparent for those skilled in the art, as defined herein general Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not Embodiment illustrated herein can be restricted to, and is to fit to consistent with principles disclosed herein and features of novelty most wide Scope.

Claims (10)

1. a kind of dual-axis bogie of straddle-type monorail train, it is characterised in that including above the crossbeam of framework body (2) Car body attachment means (4), the car body attachment means (4) include be used for be fixedly connected with the vehicle body towing pin (41), be used for The key seat (42) of the towing pin (41) is installed and is arranged on the drawing pull bar (43) at the key seat (42) both ends, the traction is drawn The both ends of bar (43) are connected with the framework body (2) and the key seat (42) respectively by rubber nodal point.
2. dual-axis bogie according to claim 1, it is characterised in that the framework body (2) is included with Central Symmetry shape Formula is distributed in the front beam (22), end carriage (21) and arch curb girder (23) of the crossbeam both sides, under the arch curb girder (23) Side is provided with the drive device (6) of Direct wheel drives type, and the gear-box (62) of the drive device (6) and motor (61) are along the structure The lateral arrangement of support body (2).
3. dual-axis bogie according to claim 2, it is characterised in that symmetrical on the lower surface of the arch curb girder (23) Ground is provided with two boss (231) for being used to install the gear-box (62), and the both sides of the gear-box (62) are provided with and institute State the positioning spigot (622) of boss (231) cooperation.
4. dual-axis bogie according to claim 2, it is characterised in that the lateral surface of the arch curb girder (23) is close to institute The position for stating crossbeam is provided with lateral damper bearing (234).
5. dual-axis bogie according to claim 4, it is characterised in that the crossbeam is provided at both ends with spring lower support (242) vertical damper bearing (2422), the vertical damper branch, are provided with the outer rim of the spring lower support (242) Seat (2422) is located at the both sides of the crossbeam with the nearer lateral damper bearing (234) respectively.
6. dual-axis bogie according to claim 5, it is characterised in that the vertical damper bearing (2422) with it is described Spring lower support (242) is integral type structure.
7. dual-axis bogie according to claim 6, it is characterised in that the outer rim of the spring lower support (242) is set Have and be used for air bullet with the stopping seat (2421) that the spring lower support (242) is integral type structure, the stopping seat (2421) The anti-overcharge backstop of spring (47) and framework body (2) lifting backstop.
8. the dual-axis bogie according to any one in claim 1~7, it is characterised in that the middle part of the crossbeam is right It is provided with two horizontal backstop mounting seats (243) with claiming, is provided with and the key seat on the horizontal backstop mounting seat (243) (42) the horizontal backstop (93) coordinated.
9. dual-axis bogie according to claim 8, it is characterised in that the towing pin (41), which offers, to be axially extended Through hole, the both ends of the round bar being located in the through hole (46) have a screw thread, and the upper end of the round bar (46) passes through flanged Top nut (4661) be fixedly connected with the towing pin (41), the lower end of the round bar (46) is provided with flanged (FLGD) lower nut (462), the lower nut (462) is located in the cavity of the crossbeam, is opened up between the upper surface of the cavity and the crossbeam There is the waist round hole extended laterally along the framework body (2), the round bar (46) passes through the waist round hole, the lower nut (462) it is used to stop that the round bar (46) exits from the waist round hole.
10. a kind of straddle-type monorail train, including dual-axis bogie, it is characterised in that the dual-axis bogie is that right such as will Seek the dual-axis bogie described in any one in 1~9.
CN201710963674.5A 2017-10-17 2017-10-17 A kind of straddle-type monorail train and its dual-axis bogie Pending CN107618529A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357895A (en) * 2018-09-12 2019-02-19 中车长春轨道客车股份有限公司 The dedicated framework of train mould measurement simulates support device
CN110595806A (en) * 2019-10-29 2019-12-20 通号轨道车辆有限公司 Loading method and loading device for loads of monorail framework and axle
CN110654408A (en) * 2019-10-28 2020-01-07 中铁轨道交通装备有限公司 Bogie and tramcar with same
CN110654409A (en) * 2019-10-28 2020-01-07 中铁轨道交通装备有限公司 Bogie and tramcar with same
CN111003009A (en) * 2019-12-20 2020-04-14 中铁轨道交通装备有限公司 Bogie and straddle type monorail vehicle with same
CN111746577A (en) * 2019-03-29 2020-10-09 比亚迪股份有限公司 Bogie, monorail vehicle and monorail traffic system
CN112026840A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Central traction device for bogie, bogie and rail vehicle
CN112026819A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Internal combustion motor train unit
CN112026830A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Railway vehicle bogie frame, bogie and railway vehicle
CN112026829A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Railway vehicle bogie and railway vehicle
CN112477907A (en) * 2020-12-02 2021-03-12 中车南京浦镇车辆有限公司 Dual-purpose straddle type monorail bogie framework for workers and passengers
CN112477905A (en) * 2020-12-02 2021-03-12 中车南京浦镇车辆有限公司 Double-purpose straddle type monorail bogie for workers and passengers

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357895A (en) * 2018-09-12 2019-02-19 中车长春轨道客车股份有限公司 The dedicated framework of train mould measurement simulates support device
CN109357895B (en) * 2018-09-12 2020-05-22 中车长春轨道客车股份有限公司 Special framework simulation supporting device for train modal test
CN111746577A (en) * 2019-03-29 2020-10-09 比亚迪股份有限公司 Bogie, monorail vehicle and monorail traffic system
CN110654408A (en) * 2019-10-28 2020-01-07 中铁轨道交通装备有限公司 Bogie and tramcar with same
CN110654409A (en) * 2019-10-28 2020-01-07 中铁轨道交通装备有限公司 Bogie and tramcar with same
CN110595806A (en) * 2019-10-29 2019-12-20 通号轨道车辆有限公司 Loading method and loading device for loads of monorail framework and axle
CN110595806B (en) * 2019-10-29 2021-08-24 通号轨道车辆有限公司 Loading method and loading device for loads of monorail framework and axle
CN111003009A (en) * 2019-12-20 2020-04-14 中铁轨道交通装备有限公司 Bogie and straddle type monorail vehicle with same
CN112026830A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Railway vehicle bogie frame, bogie and railway vehicle
CN112026819A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Internal combustion motor train unit
CN112026829A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Railway vehicle bogie and railway vehicle
CN112026840B (en) * 2020-09-10 2021-11-12 中车青岛四方机车车辆股份有限公司 Central traction device for bogie, bogie and rail vehicle
CN112026819B (en) * 2020-09-10 2021-11-12 中车青岛四方机车车辆股份有限公司 Internal combustion motor train unit
CN112026840A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Central traction device for bogie, bogie and rail vehicle
CN112026829B (en) * 2020-09-10 2021-11-12 中车青岛四方机车车辆股份有限公司 Railway vehicle bogie and railway vehicle
CN112477907B (en) * 2020-12-02 2021-11-02 中车南京浦镇车辆有限公司 Dual-purpose straddle type monorail bogie framework for workers and passengers
CN112477905A (en) * 2020-12-02 2021-03-12 中车南京浦镇车辆有限公司 Double-purpose straddle type monorail bogie for workers and passengers
CN112477907A (en) * 2020-12-02 2021-03-12 中车南京浦镇车辆有限公司 Dual-purpose straddle type monorail bogie framework for workers and passengers

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