CN107354830A - External suspension type rail beam and external suspension type sky iron traffic system - Google Patents
External suspension type rail beam and external suspension type sky iron traffic system Download PDFInfo
- Publication number
- CN107354830A CN107354830A CN201710470988.1A CN201710470988A CN107354830A CN 107354830 A CN107354830 A CN 107354830A CN 201710470988 A CN201710470988 A CN 201710470988A CN 107354830 A CN107354830 A CN 107354830A
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- CN
- China
- Prior art keywords
- suspension type
- external suspension
- rut
- wheel
- rail beam
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/22—Tracks for railways with the vehicle suspended from rigid supporting rails
- E01B25/24—Supporting rails; Auxiliary balancing rails; Supports or connections for rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
- B61B13/04—Monorail systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B3/00—Elevated railway systems with suspended vehicles
- B61B3/02—Elevated railway systems with suspended vehicles with self-propelled vehicles
Abstract
The present invention discloses external suspension type rail beam and external suspension type sky iron traffic system, is related to field of track traffic.Two sides of external suspension type rail beam supply the wheels travel of suspension type monorail vehicle both sides, it includes the baffle assembly that can separate the wheel of both sides and the Liangping plate for the wheel sliding for both sides, and the bottom of the baffle assembly is fixedly connected with the top surface of Liangping plate；The top surface of the both sides of the Liangping plate is respectively formed with rut portion, and the top surface in the rut portion is inclined plane, and the wheel sliding is in inclined plane.The present invention has filled up the blank of undisclosed external suspension type sky iron traffic system both at home and abroad, and track girder dismounting wheel is more more convenient.
Description
Technical field
The present invention relates to field of track traffic, more particularly to external suspension type rail beam and there is external suspension type rail beam
External suspension type sky iron traffic system.
Background technology
Ground public transport system has that freight volume is small, pollution is big, it is more and surface road insufficient space natural to take road
Defect.Subway freight volume is big, pollution-free, is also not take up surface road space, but faces the finite sum subway cost of the underground space
The limitation of height, economy deficiency and geological conditions etc..Suspended rail traffic, it can solved effectively using space more than ground
Certainly there is oneself unique advantage in terms of traffic problems.The mankind have had the history of more than 100 years using suspended rail traffic system,
China, Germany and Japan have circuit runing at present.
By years development up to the present, only occur built-in suspension formula Rail Transit System, built-in suspension formula both at home and abroad
The track girder of Rail Transit System, which is commonly bottom, has the semi-enclosed structure of opening, and such track beam structure dismounts wheel
Complicated inconvenience.Therefore, finding a kind of dismounting wheel simply and easily external suspension type rail beam and has its external suspension type
Empty iron traffic system is imperative.
In addition, the rut face of the running rail of existing built-in suspension Rail Transit System is horizontal, two groups of wheels
Abreast travel on two rut faces of track.Horizontal rut face can not produce necessarily to wheel during due to wheels travel
Horizontal force, therefore, when car body is had a great influence by crosswind and unbalance loading, transverse shifting can occur for car body.For that purpose it is necessary to
Directive wheel and steady wheel are set, deflected with solving the problems, such as car body to be influenceed by external force.But the stability force of steady wheel and
The guiding force of directive wheel is larger, larger to the active force of track beam sides, so as to have impact on the lateral stability of track girder, reduces
Security performance, meanwhile, cost is not only increased, and due to larger guiding force and stability force, generate noise, especially
High-frequency noise.And the external suspension type rail beam urgently studied and also it is badly in need of gram with its external suspension type sky iron traffic system
Take drawbacks described above.
The content of the invention
(1) technical problems to be solved
The present invention provides a kind of dismounting wheel simply and easily external suspension type rail beam.
The present invention also provides a kind of external suspension type sky iron traffic system including above-mentioned external suspension type rail beam.
(2) technical scheme
In order to achieve the above object, the main technical schemes that the present invention uses include：
The present invention provides a kind of external suspension type rail beam, and two sides of the track girder supply suspension type monorail vehicle both sides
Wheels travel, the track girder includes the baffle assembly that can separate the wheel of both sides and for the wheel sliding for both sides
Liangping plate, the bottom of the baffle assembly is fixedly connected with the top surface of Liangping plate；
The top surface of the both sides of the Liangping plate is respectively formed with rut portion, and the top surface in the rut portion is a plane, the car
Wheel slides on this plane.
As the preferred scheme of external suspension type rail beam, the top surface in the rut portion is the plane parallel to Liangping plate.
As the preferred scheme of external suspension type rail beam, the top surface in the rut portion be from away from baffle assembly to close
The plane that baffle assembly tilts down, the positive angle less than or equal to 30 ° is formed between the top surface and Liangping plate in the rut portion.
As the preferred scheme of external suspension type rail beam, the top surface in the rut portion be from close to baffle assembly away from
The plane that baffle assembly tilts down, the positive angle less than or equal to 60 ° is formed between the top surface and Liangping plate in the rut portion.
As the preferred scheme of external suspension type rail beam, the rut portion includes the scuff-resistant coating and shape positioned at top surface
Into the structure sheaf of main body, the scuff-resistant coating is made using high-abrasive material, the structure sheaf using load steel material make and
Into.
As the preferred scheme of external suspension type rail beam, the rut portion and Liangping plate are integral type structure.
As the preferred scheme of external suspension type rail beam, the rut portion is fixedly connected by connector with Liangping plate,
And damping layer is set between rut portion and Liangping plate.
As the preferred scheme of external suspension type rail beam, the baffle assembly includes at least one dividing plate, the dividing plate
Axially symmetric structure is formed between all dividing plates of component.
The present invention also provides a kind of external suspension type sky iron traffic system, including car body and the multipair wheel that is arranged in pairs,
Also include the external suspension type rail beam as described in any of the above scheme；
The wheel is connected with axletree, and axletree is set perpendicular to connected wheel, and the axletree passes through hanger bar
It is connected with car body.
As the preferred scheme of external suspension type sky iron traffic system,
Connected between two wheels of each pair by being enclosed in axletree outside the plate of Liangping, the axletree include middle shaft part and
Two end axle portions at middle shaft part both ends are symmetrically connected to, the middle part of the middle shaft part is connected by hanger bar with car body, two
End axle portion vertically connects the wheel of each respective end respectively.
(3) beneficial effect
The beneficial effects of the invention are as follows：
Compared with existing built-in suspension formula Rail Transit System, external suspension type rail beam disclosed by the invention and have
The external suspension type sky iron traffic system of the track girder has advantages below：
1st, the blank of undisclosed external suspension type sky iron traffic system both at home and abroad has been filled up, track girder dismounting wheel is simply square
Just.
2nd, in addition, the top surface (hereinafter referred to as rut face) in rut portion may be designed to inclined plane, have self- steering and
Self-stabilization function, solve the problems, such as that transverse shifting occurs because being influenceed by external force for car body, so as to improve stability and
Security.
3rd, because inclined rut face has self- steering function, guiding force is reduced, the setting of directive wheel can be reduced, even
It is not provided with directive wheel；Meanwhile inclined rut face also has self-stabilization function, it is possible to reduce the setting of steady wheel, does not set even
Steady wheel is put, further saves cost.
4th, based on being not provided with or set directive wheel and steady wheel less, reduce due to the guiding force of directive wheel and steady wheel and
Noise caused by stability force, especially high-frequency noise, protect environment.
Brief description of the drawings
Fig. 1 is the structural representation one of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is single pole
Formula, rut face are lower tilting；
Fig. 2 is the structural representation two of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is single pole
Formula, rut face are upper tilting；
Fig. 3 is the structural representation three of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double-rod
Formula, rut face are lower tilting；
Fig. 4 is the structural representation four of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double-rod
Formula, rut face are upper tilting；
Fig. 5 is the structural representation five of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is single pole
Formula, rut face are lower tilting；
Fig. 6 is the structural representation six of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is single pole
Formula, rut face are upper tilting；
Fig. 7 is the structural representation seven of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double-rod
Formula, rut face are lower tilting；
Fig. 8 is the structural representation eight of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double-rod
Formula, rut face are upper tilting；
Fig. 9 is the structural representation nine of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double-rod
Formula, rut face are lower tilting；
Figure 10 is the structural representation ten of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double-rod
Formula, rut face are upper tilting；
Figure 11 is the structural representation 11 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double
Rod-type, rut face are lower tilting；
Figure 12 is the structural representation 12 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double
Rod-type, rut face are upper tilting；
Figure 13 is the structural representation 13 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is single
Rod-type, rut face are lower tilting；
Figure 14 is the structural representation 14 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is single
Rod-type, rut face are upper tilting；
Figure 15 is the structural representation 15 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double
Rod-type, rut face are lower tilting；
Figure 16 is the structural representation 16 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double
Rod-type, rut face are upper tilting；
Figure 17 is the structural representation 17 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is single
Rod-type, rut face are lower tilting；
Figure 18 is the structural representation 18 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is single
Rod-type, rut face are upper tilting；
Figure 19 is the structural representation 15 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double
Rod-type, rut face are lower tilting；
Figure 20 is the structural representation 16 of the external suspension type sky iron traffic system of the present invention, wherein, hanger bar is double
Rod-type, rut face are upper tilting.
In figure：
1st, car body；2nd, wheel；3rd, hanger bar；4th, axletree；5th, rut portion；6th, Liangping plate；7th, baffle assembly；
41st, middle shaft part；42nd, axle portion is held.
Embodiment
In order to preferably explain the present invention, in order to understand, below in conjunction with the accompanying drawings, by embodiment, to this hair
It is bright to be described in detail.
As shown in Fig. 1 to Figure 20, the invention discloses a kind of external suspension type sky iron traffic system, the system includes car body
1st, external suspension type rail beam and it is slidably arranged in the multipair wheel 2 of the external side of suspension type rail beam two.Above-mentioned track girder
Set up in the air, the top of car body 1 is installed with hanger bar 3, and the top of hanger bar 3 is be hinged with axletree 4, and wheel 2 is arranged on axletree 4
End.Axletree 4 is connected with drive device, and drive device electrically connects with the vehicle control device in car body 1.
The track girder of the present invention includes the baffle assembly 7 and beam that can separate the wheel 2 of suspension type monorail vehicle both sides
Flat board 6.Liangping plate 6 is horizontal positioned flat board, i.e., the top surface of the both sides of Liangping plate 6 is equivalent to horizontal plane, for for both sides
Multipair wheel 2 slides.The bottom of baffle assembly 7 is fixedly connected with the top surface of Liangping plate 6.Baffle assembly 7 is integrated with Liangping plate 6
Formula structure, so as to improve track girder overall structural strength and stability.
The baffle assembly 7 of track girder includes at least one dividing plate.Wherein, baffle assembly 7 can be simple in construction vertical
Riser (see Figure 17-20).In order to lift the aesthetic of vision, baffle assembly 7 can be designed to：Baffle assembly 7 includes
The top plate being be arranged in parallel with Liangping plate 6, and two vertical risers being connected between top plate and Liangping plate 6, two inclinations
Formula riser is symmetrical arranged, and inverted U-shaped is formed between top plate (see Fig. 1-8).Certainly, in order to strengthen overall structural strength
And stability, while the aesthetic feeling of vision is lifted, baffle assembly 7 can be designed to following two structure types：1st, baffle assembly 7
Including positioned at the top of Liangping plate 6 and symmetrically arranged two tilting risers, shape between two tilting risers and Liangping plate 6
Into firm triangular structure.Both structure types make it that the structural strength of track girder is higher, extend the use of track girder
Life-span (see Fig. 9-12)；2nd, baffle assembly 7 includes the top plate being be arranged in parallel with Liangping plate 6, and is connected to top plate and Liangping plate 6
Between two tilting risers, two tilting risers are symmetrical arranged, and firm triangular structure is formed between top plate
(see Figure 13-16).Certainly, according to the actual requirements baffle assembly be integrally also designed to other forms (be such as staggered, formed
Trapezoidal, infundibulate etc.).
Respectively formed with rut portion 5, rut portion 5 includes being located at top surface (hereinafter referred to as rut the top surface of the both sides of Liangping plate 6
Face) scuff-resistant coating and form the structure sheaf of the main body of rut portion 5, scuff-resistant coating is made using high-abrasive material, can pass through machinery peace
The modes such as dress, application or bonding method laying are installed.In order to improve the load-carrying of structure sheaf endurance, structure sheaf uses load steel
Matter is made.Wheel 2 can be slided on rut face.
Rut face can be a plane parallel to Liangping plate 6, i.e., rut face is parallel with the top surface of the both sides of Liangping plate 6 sets
Put.
Rut face can also be inclined plane, and wheel 2 is slided in inclined plane.This inclined rut face has certainly
Guiding and self-stabilization function, solve the problems, such as that transverse shifting occurs because being influenceed by external force for car body, steady so as to improve
Qualitative and security.Because above-mentioned inclined rut face has self- steering function, guiding force is reduced, setting for directive wheel can be reduced
Put, or even be not provided with directive wheel；Meanwhile above-mentioned inclined rut face also has self-stabilization function, it is possible to reduce steady wheel is set
Put, or even be not provided with steady wheel, so as to save cost.Based on being not provided with or set directive wheel and steady wheel less, greatly reduce
Due to noise, especially high-frequency noise caused by the guiding force and stability force of directive wheel and steady wheel, environment is protected.
Specifically, inclined rut face can be from away from baffle assembly 7 to the plane tilted down close to baffle assembly 7
(the rut face for hereinafter referred to as descending tilting), can also be from flat to being tilted down away from baffle assembly 7 close to baffle assembly 7
Face (the rut face of hereinafter referred to as upper tilting).In order to ensure trouble-free operation of the wheel 2 on inclined rut face, upper tilting
Rut face and lower tilting rut face angle of inclination according to vehicle sound load and track beam structure size, through dynamics
Model and simulation calculation are determined, the positive angle less than or equal to 30 ° is formed between the rut face of lower tilting and Liangping plate 6 (see figure
All odd number figures in 1-20).The positive angle less than or equal to 60 ° is formed between the rut face of upper tilting and Liangping plate 6 (see figure
All even number figures in 1-20).The consideration of the factors such as speed, cost and noise based on vehicle, the preferably upper tilting in rut face
Rut face, and 5-20 ° of angle is formed between the rut face of upper tilting and Liangping plate 6, stability and security are also relatively more
It is high.
Rut portion 5 can be integral type structure with Liangping plate 6, improve the stability of total.Certainly, in order to tear open at any time
Change, improve the service life of track girder, rut portion 5 can also be separate structure with Liangping plate 6, i.e. rut portion 5 passes through connection
Part is fixedly connected with corresponding Liangping plate 6, common stress.In order to improve damping capacity, rut portion 5 and corresponding Liangping plate 6 it
Between be provided with damping layer, the damping slurry that can pour may be selected in the damping layer.
Attachment structure between wheel 2 and car body 1 mainly has following two forms：
One kind is that the wheel 2 of left and right two of each pair can be connected with an axletree 4 respectively, and each axletree 4 connects perpendicular to it
The wheel 2 connect is set, each axletree 4 be connected respectively with car body 1 by least one hanger bar 3 again (referring to Fig. 3,4,7,8,11,
12、15、16、19、20).Another kind is to be connected between two wheels 2 of each pair by being enclosed in the axletree 4 outside Liangping plate 6,
Wherein, axletree 4 includes the middle shaft part 41 at middle part and connects two end axle portions 42 in the left and right ends portion of middle shaft part 41 respectively.Axis
Portion 41 can be segmental arc, or U section (see Fig. 1,2,5,6,9,10,13,14,17,18), can also set as needed
It is calculated as other shapes (such as trapezoidal).The middle part of middle shaft part 41 is connected by least one hanger bar 3 with car body 1.The end axle of left end
The wheel 2 in the end of portion 42 and left side is connected, and wheel 2 of the end axle portion 42 of left end perpendicular to left side is set.The end axle portion of right-hand member
The wheel 2 on 42 ends and right side is connected, and wheel 2 of the end axle portion 42 of right-hand member perpendicular to right side is set.That is, when design
Into upper tilting rut face when, two of left and right end end axle portions 42 are also in and tilted structure in the identical of rut face to tilt
Angle is consistent with the angle of inclination in rut face, and compared with the end axle portion of horizontal, this end axle portion 42 improves stress, can
Less shearing force is born, can also bear strong pressure.When being designed to the rut face of lower tilting, two ends at left and right end
Axle portion 42 also be in tilted structure under the identical of rut face, angle of inclination is consistent with the angle of inclination in rut face, with horizontal
End axle portion compare, this end axle portion 42 improves stress, can bear less shearing force, can also bear strong drawing
Power.
With for the quantity of hanger bar 3 that is directly connected to the top of car body 1, hanger bar 3 can be single lever-type (see Fig. 1,2,5,
6th, 9,10,13,14,17, any 18), in double rod type (referring to Fig. 3,4,7,8,11,12,15,16,19,20) and multi-rod
Kind.
In the present invention, whole external suspension type sky iron traffic system can only be set by 1 section car body according to passenger flow size
Individually organized into groups, 2 sections, 4 sections, 6 sections, 8 section car bodies can also be set to be organized into groups, to form a permutation car.
The present invention has filled up the blank of undisclosed external suspension type sky iron traffic system both at home and abroad, with existing built-in suspension
Formula Rail Transit System is compared, and track girder of the invention dismounting wheel is more more convenient.
It is to be appreciated that the description carried out above to the specific embodiment of the present invention is simply to illustrate that the skill of the present invention
Art route and feature, its object is to allow those skilled in the art to understand present disclosure and implement according to this, but
The present invention is not limited to above-mentioned particular implementation.Every various change made within the scope of the claims is repaiied
Decorations, it should all cover within the scope of the present invention.
Claims (10)
1. a kind of external suspension type rail beam, it is characterised in that two sides of the track girder supply suspension type monorail vehicle both sides
Wheel (2) traveling, the track girder includes the baffle assembly (7) that can separate the wheel (2) of both sides and for for both sides
The Liangping plate (6) that slides of wheel (2), the bottom of the baffle assembly (7) is fixedly connected with the top surface of Liangping plate (6)；
The top surface of the both sides of the Liangping plate (6) is respectively formed with rut portion (5), and the top surface of the rut portion (5) is a plane, institute
Wheel (2) is stated to slide on this plane.
2. external suspension type rail beam according to claim 1, it is characterised in that：The top surface of the rut portion (5) is flat
Row is in the plane of Liangping plate (6).
3. external suspension type rail beam according to claim 1, it is characterised in that：The top surface of the rut portion (5) be from
Away from baffle assembly (7) to the plane tilted down close to baffle assembly (7), top surface and the Liangping plate (6) of the rut portion (5)
Between formed less than or equal to 30 ° of positive angle.
4. external suspension type rail beam according to claim 1, it is characterised in that：The top surface of the rut portion (5) be from
Close to baffle assembly (7) to the plane tilted down away from baffle assembly (7), top surface and the Liangping plate (6) of the rut portion (5)
Between formed less than or equal to 60 ° of positive angle.
5. the external suspension type rail beam according to claim any one of 1-4, it is characterised in that：Rut portion (5) bag
The structure sheaf of the scuff-resistant coating and formation main body positioned at top surface is included, the scuff-resistant coating is made using high-abrasive material, the structure
Layer is made using load steel material.
6. external suspension type rail beam according to claim 5, it is characterised in that：The rut portion (5) and Liangping plate (6)
For integral type structure.
7. external suspension type rail beam according to claim 5, it is characterised in that：The rut portion (5) passes through connector
It is fixedly connected with Liangping plate (6), and damping layer is set between rut portion (5) and Liangping plate (6).
8. external suspension type rail beam according to claim 1, it is characterised in that：The baffle assembly (7) is included at least
One dividing plate, axially symmetric structure is formed between all dividing plates of the baffle assembly (7).
9. a kind of external suspension type sky iron traffic system, including car body (1) and the multipair wheel (2) that is arranged in pairs, its feature exist
In：Also include the external suspension type rail beam as described in claim any one of 1-8；
The wheel (2) is connected with axletree (4), and axletree (4) is set perpendicular to connected wheel (2), the axletree (4)
It is connected by hanger bar with car body (1).
10. external suspension type sky iron traffic system according to claim 9, it is characterised in that：Two wheels (2) of each pair
Between connected by being enclosed in the outside axletree (4) of Liangping plate (6), the axletree (4) includes middle shaft part (41) and symmetrical connection
Two end axle portions (42) at middle shaft part (41) both ends, the middle part of the middle shaft part (41) are connected by hanger bar and car body (1)
Connect, two end axle portions (42) connect the wheel (2) of each respective end with being respectively perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470988.1A CN107354830A (en) | 2017-06-20 | 2017-06-20 | External suspension type rail beam and external suspension type sky iron traffic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470988.1A CN107354830A (en) | 2017-06-20 | 2017-06-20 | External suspension type rail beam and external suspension type sky iron traffic system |
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| Publication Number | Publication Date |
|---|---|
| CN107354830A true CN107354830A (en) | 2017-11-17 |
Family
ID=60272941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710470988.1A Pending CN107354830A (en) | 2017-06-20 | 2017-06-20 | External suspension type rail beam and external suspension type sky iron traffic system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107757633A (en) * | 2017-11-21 | 2018-03-06 | 中车长江车辆有限公司 | A kind of stream carrier vehicle system |
| CN107792110A (en) * | 2017-11-21 | 2018-03-13 | 中车长江车辆有限公司 | A kind of bogie and stream carrier vehicle |
| CN107878475A (en) * | 2017-11-21 | 2018-04-06 | 中车长江车辆有限公司 | A kind of underground piping system |
| CN108301260A (en) * | 2018-04-02 | 2018-07-20 | 中唐空铁集团有限公司 | A kind of novel air rail road and application thereof |
| CN108297883A (en) * | 2018-04-02 | 2018-07-20 | 中唐空铁集团有限公司 | It is a kind of sky iron driving with suspension integral structure |
| CN108301262A (en) * | 2018-04-04 | 2018-07-20 | 中唐空铁集团有限公司 | A kind of sky iron running gear |
| CN108340926A (en) * | 2018-04-04 | 2018-07-31 | 中唐空铁集团有限公司 | Hang traffic running gear |
| CN114808558A (en) * | 2022-04-13 | 2022-07-29 | 山东启和云梭物流科技有限公司 | Composite special-shaped flange track system |
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