CN108501615A - A kind of bending disc rail wheel - Google Patents
A kind of bending disc rail wheel Download PDFInfo
- Publication number
- CN108501615A CN108501615A CN201810375749.2A CN201810375749A CN108501615A CN 108501615 A CN108501615 A CN 108501615A CN 201810375749 A CN201810375749 A CN 201810375749A CN 108501615 A CN108501615 A CN 108501615A
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- Prior art keywords
- flexure plane
- wheel
- disc
- connect
- flexure
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
- B60B17/0006—Construction of wheel bodies, e.g. disc wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/111—Weight
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention provides a kind of bending disc rail wheel applied to rail vehicle parts technical field,The wheel spoke (2) of the bending disc rail wheel is set as being in flexure plane structure,Disc (2) one end is connect with wheel hub (1),Disc (2) other end is connect with wheel rim (3),Wheel web (2) includes disc side I (4) and disc side II (5),Multiple I flexure planes of side (6) are arranged to one end is connect with wheel rim (3) from connecting one end with wheel hub (1) in disc side I (4),Multiple II flexure planes of side (7) are arranged to one end is connect with wheel rim (3) from connecting one end with wheel hub (1) in disc side II (5),Bending disc rail wheel of the present invention,Ensuring that there is good braking ability,While being easy to mass production,Realize wheel lightweight,Ensure that wheel has rational intensity,Rigidity and braking thermodynamic property,Improve competitiveness.
Description
Technical field
The invention belongs to rail vehicle parts technical fields, are to be related to a kind of bending disc railcar more specifically
Wheel.
Background technology
The car body weight of rail vehicle directly affects energy consumption, and vehicle forms optimization design and new material of the component by structure
Utilization can effectively reduce weight, and then reduce energy consumption.Rail wheel is mainly by wheel hub, disc, wheel rim three parts composition, wheel
Structure generally refers to web pattern.Web pattern is broadly divided into 5 kinds：S type disc, bell-shaped disc (also known as double S types disc), basin
Type disc, straight wheel plate, oblique disc.S type disc, bell type disc (also known as double S types disc), basin type disc can range curved arm again
Plate.Tread brake rail wheel is designed, must consider stress and deformation simultaneously.Web pattern is to the rigidity of rail vehicle wheel, strong
Degree and deformation have a direct impact.Straight wheel plate is usually used in the trolley coach vehicle of Multiple disc brake, but its power because being easily installed brake disc
It is poor to learn performance.Disc is bent because having smaller radial rigidity and optimal thermodynamic property, is usually used in tread brake track
Vehicle, it can also be used to reel braking orbit vehicle.Europe wheel design check standard UIC 510-5 and EN 13979-1 to by
The design of rail wheel is made that in terms of the mechanical load that wheel-rail contact generates and the thermal force by tread brake generation
Regulation.S types web wheel and basin type web wheel are because under the conditions of tread brake, axial deformation exceeds UIC 510-5 and EN
13979-1 standard prescribed limits, therefore it is not suitable for UIC 510-5 and EN 13979-1 standards.The ORE920 wheels in Europe are allusion quotations
The bell-shaped disc tread brake wheel of type, sizing is before the appearance of UIC 510-5 and EN 13979-1 standards, currently, safety fortune
Row decades carry out FEM calculation with UIC 510-5 and EN 13979-1 to its structure, and static strength and fatigue strength are equal
Beyond standard prescribed limit.Designed path wheel is especially easy to forge it is also contemplated that its structure is suitable for mass production.In life
It is found in production, certain rail wheels, excellent in mechanical performance, but forging has larger difficulty, forging qualification rate is relatively low, leads to cost liter
High, delivery date delay.And rail wheel in the prior art, lightweight requirements are cannot be satisfied, manufacturing process is complicated, cannot be satisfied
Batch production demand.
Invention content
The technical problem to be solved by the present invention is to：In view of the deficiencies of the prior art, a kind of simple in structure, manufacture work is provided
Skill is simple, and manufacturing cost is low, while ensuring to have good braking ability, being easy to mass production, can realize wheel light
Quantization ensures that wheel has sufficiently high radial flexibility and axial rigidity, with rational intensity, rigidity and brakes thermodynamics
Can, improve the bending disc rail wheel of the market competitiveness.
Solve the problems, such as that techniques discussed above, the technical solution that the present invention takes are：
The present invention be a kind of bending disc rail wheel, the bending disc rail wheel include wheel hub, wheel web,
Wheel rim, the wheel spoke are set as being in flexure plane structure, and disc one end is connect with wheel hub, and the disc other end connects with wheel rim
It connects, wheel web includes disc side I and disc side II, and disc side I connect one from connecting one end with wheel hub to wheel rim
End is arranged multiple I flexure planes of side, and multiple sides are arranged to one end is connect with wheel rim from connecting one end with wheel hub in disc side II
II flexure plane.
I flexure plane of side of the disc side I includes I flexure plane I of side, I flexure plane II of side, the bending of side I
Face III, I flexure plane I of side are set as the structure being inwardly recessed, and I flexure plane II of side is set as the structure outwardly protruded, side I
Flexure plane III is set as the structure being inwardly recessed.
II flexure plane of side of the disc side II includes II flexure plane I of side, II flexure plane II of side, side II
Flexure plane III, II flexure plane I of side are set as the structure outwardly protruded, and II flexure plane II of side is set as the knot being inwardly recessed
Structure, II flexure plane III of side are the structure outwardly protruded.
I flexure plane of side, I one end of I flexure plane of side is connect with wheel hub, I flexure plane of side, I other end and side
I flexure plane of face, II one end connects, and I flexure plane of side, II other end is connect with I flexure plane of side, III one end, I flexure plane III of side
The other end is connect with wheel rim.
II flexure plane of side, I one end of II flexure plane of side is connect with wheel hub, II flexure plane of side, I other end with
II flexure plane of side, II one end connects, and II flexure plane of side, II other end is connect with II flexure plane of side, III one end, and side II is curved
III other end of curved surface is connect with wheel rim.
Intermediate cross-section is arranged in I flexure plane of side and II flexure plane centre position of side, and intermediate cross-section includes
Cross sectional curve face I, cross sectional curve face II, cross sectional curve face III, the axial vertex tangent in cross sectional curve face II are set as
It is parallel to the structure of wheel hub medial axis.
The axial direction of the axial vertex tangent I and cross sectional curve face III in the cross sectional curve face I of the intermediate cross-section
Angle ψ between vertex tangent II is arranged between 100 ° -135 °.
The disc is set as from one end is connect with wheel hub to connecting thickness gradually thinning structure in one end with wheel rim.
The outer radius R1 of I flexure plane I of side of I flexure plane of side is arranged between 70mm-150mm, side
The outer radius R2 of II flexure plane I of side of II flexure plane is arranged between 70mm-150mm, and the side I of I flexure plane of side is curved
The outer radius R3 of curved surface II is arranged between 45mm-125mm, the outer radius of II flexure plane II of side of II flexure plane of side
R4 is arranged between 45mm-125mm, and the outer radius R5 of I flexure plane III of side of I flexure plane of side is arranged in 25mm-125mm
Between, the outer radius R6 of II flexure plane III of side is arranged between 25mm-125mm.
Technical solution using the present invention can obtain advantageous effect below：
Wheel web is designed as by bending disc rail wheel of the present invention when designing or manufacturing rail wheel
Segmented (such as three-stage) reduces stress, improves the overall performance of wheel so as to be effectively increased the radial flexibility of wheel,
And above structure so that forging and pressing production process difficulty reduces.At the same time, rail wheel of the present invention is applied to railway
On car or lorry, it is suitable for tread brake or reel is braked, be easy to produce in batches, be especially easy to solid forging.The present invention
The bending disc rail wheel, it is simple in structure, while ensuring there is good braking ability, being easy to mass production,
It can realize wheel lightweight, ensure that wheel has rational intensity, rigidity and braking thermodynamic property, improve market competition
Power.
Description of the drawings
Brief description is made to the content expressed by each attached drawing of this specification and the label in figure below：
Fig. 1 is the schematic cross-sectional view of bending disc rail wheel of the present invention；
Attached drawing acceptance of the bid, which is remembered, is respectively：1, wheel hub；2, wheel web；3, wheel rim；4, disc side I；5, disc side II；6、
I flexure plane of side；7, II flexure plane of side；8, I flexure plane I of side；9, I flexure plane II of side；10, I flexure plane III of side；
11, II flexure plane I of side；12, II flexure plane II of side；13, II flexure plane III of side；14, intermediate cross-section；15, cross section
Flexure plane I；16, cross sectional curve face II；17, cross sectional curve face III；18, wheel hub medial axis；19, axial vertex tangent I；
20, axial vertex tangent II；21, wheel rim；22, tread；23, wheel hub-disc transition region；24, wheel rim-disc transition region.
Specific implementation mode
Below against attached drawing, by the description of the embodiment, each structure for example involved to the specific implementation mode of the present invention
The works such as mutual alignment and connection relation, the effect of each section and operation principle between the shape of part, construction, each section are further
Detailed description：
As shown in Fig. 1, the present invention is a kind of bending disc rail wheel, and the bending disc rail wheel includes wheel
Hub 1, wheel web 2, wheel rim 3, the wheel spoke 2 are set as being in flexure plane structure, and 2 one end of disc is connect with wheel hub 1, spoke
2 other end of plate is connect with wheel rim 3, wheel web 2 include disc side I 4 and disc side II 5, disc side I 4 from wheel hub 1
Connection one end to connecting setting multiple I flexure planes 6 of side in one end with wheel rim 3, disc side II 5 from connect with wheel hub 1 one end to
It connect one end with wheel rim 3, multiple II flexure planes 7 of side are set.Above structure, when designing or manufacturing rail wheel, by wheel spoke
Plate is designed as segmented (such as three-stage), so as to be effectively increased the radial flexibility of wheel, reduces stress, improves the whole of wheel
Body performance, and above structure so that forging and pressing production process difficulty reduces.At the same time, rail wheel of the present invention, is answered
For passenger train or lorry, it is suitable for tread brake or reel is braked, be easy to produce in batches, be especially easy to whole forging
It makes.Bending disc rail wheel of the present invention, it is simple in structure, ensuring that there is good braking ability, be easy to batch metaplasia
While production, wheel lightweight can be realized, ensure that wheel has rational intensity, rigidity and braking thermodynamic property, improve
The market competitiveness.
I flexure plane 6 of side of the disc side I 4 includes I flexure plane I 8 of side, I flexure plane II 9 of side, side I
Flexure plane III 10, I flexure plane I 8 of side are set as the structure being inwardly recessed, and I flexure plane II 9 of side is set as the knot outwardly protruded
Structure, I flexure plane III 10 of side are set as the structure being inwardly recessed.
II flexure plane 7 of side of the disc side II 5 include II flexure plane I 11 of side, II flexure plane II 12 of side,
II flexure plane III 13 of side, II flexure plane I 11 of side are set as the structure outwardly protruded, II flexure plane II 12 of side be set as to
Interior recessed structure, II flexure plane III 13 of side are the structure outwardly protruded.
I flexure plane of side, I 8 one end of I flexure plane 6 of side is connect with wheel hub 1, I flexure plane of side, I 8 other end
It is connect with I flexure plane of side, II 9 one end, I flexure plane of side, II 9 other end is connect with I flexure plane of side, III 10 one end, side I
III 10 other end of flexure plane is connect with wheel rim 3.
II flexure plane of side, I 11 one end of II flexure plane 7 of side is connect with wheel hub 1, and II flexure plane I 11 of side is another
One end is connect with II flexure plane of side, II 12 one end, and II flexure plane of side, II 12 other end connects with II flexure plane of side, III 13 one end
It connects, II flexure plane of side, III 13 other end is connect with wheel rim 3.
Intermediate cross-section 14, intermediate cross-section is arranged in I flexure plane 6 of side and II flexure plane of side, 7 centre position
14 include cross sectional curve face I 15, cross sectional curve face II 16, cross sectional curve face III 17, and cross sectional curve face II 15 is axial
Vertex tangent is arranged in parallel to the structure of wheel hub medial axis 18.
The axial vertex tangent I 19 in the cross sectional curve face I 15 of the intermediate cross-section 14 and cross sectional curve face III
Angle ψ between 17 axial vertex tangent II 20 is arranged between 100 ° -135 °.Above structure is arranged, and can effectively reduce
Stress at outer radius R3 and at outer radius R4, and reduce disc maximum stress.If angle ψ is too small, maximum stress will
Present in R3 or R4, and maximum static strength or maximum fatigue strength can exceed that threshold value as defined in EN 13979-1 standards.If
Angle ψ is excessive, then stress will increase, and causes maximum static strength or maximum fatigue strength that can exceed that EN 13979-1 standards provide
Threshold value.
The disc 2 is set as from one end is connect with wheel hub 1 to connecting thickness gradually thinning knot in one end with wheel rim 3
Structure.Above structure is ensuring wheel strength meanwhile, it is capable to effectively reduce wheel weight, is realizing lightweight, when saving vehicle operation
Energy consumption and production process raw materials consumption, energy conservation and environmental protection.If disc is designed as uniform thickness structure, disc is by leaning on and wheel hub
Connection one end connect with wheel rim at one end stress and is much smaller than and wheel hub company to connecting the stress of one end with wheel rim or gradually reduce
One end is connect, to cause structure to waste.
The outer radius R1 of I flexure plane I 8 of side of I flexure plane 6 of side is arranged between 70mm-150mm, side
The outer radius R2 of II flexure plane I 11 of side of II flexure plane 7 of face is arranged between 70mm-150mm, the side of I flexure plane 6 of side
The outer radius R3 of I flexure plane II 9 of face is arranged between 45mm-125mm, II flexure plane II 12 of side of II flexure plane 7 of side
Outer radius R4 be arranged between 45mm-125mm, the outer radius R5 of I flexure plane III 10 of side of I flexure plane 6 of side is set
It sets between 25mm-125mm, the outer radius R6 of II flexure plane III 13 of side is arranged between 25mm-125mm.Above-mentioned size
It is combined together, wheel radial direction flexibility can be increased, be conducive to reduce stress, improve performance.
The wheel of the present invention provides a kind of lightweight wheel, and the wheel is easily fabricated, and with sufficiently high radial
Flexibility and axial rigidity.The present invention between wheel hub and wheel rim by introducing a kind of new structural bending disc realization.The disc
Adjustable design, to be balanced between low stress and small wheel rim axial deformation.
The present invention is a kind of rail wheel being used for passenger train and lorry.The wheel includes wheel hub, disc and with stepping on
The wheel rim of face and wheel rim.Disc is the structure type of bending, and disc has an intermediate cross-section, positions and assist to make for disc
Figure.Disc intermediate cross-section originates in wheel hub, terminates at wheel rim.Disc intermediate cross-section section start and termination are straight line,
Disc and disc intermediate cross-section are connected by three curves, and there are two inflection points altogether, are located at the both sides of disc intermediate projections,
First inflection point is close to wheel hub, and Second Inflexion Point is close to wheel rim.Disc intermediate projections have the center of curvature positioned at wheel side.Disc
Also have positioned at the first inflection point and in the engaging zones of wheel hub between first end part, and positioned at Second Inflexion Point and with wheel
Second end part between the engaging zones of rim, the two end sections have relative to disc intermediate projections, are located at vehicle
Take turns the center of curvature of opposite side.As shown in Fig. 1, in the present invention, X-X axis are wheel axis of rotation, also referred to as axially.Y-axis
Line is wheel hub medial axis, indicates the radial direction perpendicular to X-X axial directions.X-X axis arrow directions are outside, X-X axis arrows
The negative direction of head is inside.The intermediate cross-section of disc 5 extends along curve A-G.And the point A in region 6 and the point in region 7
There are three sections of bendings between G.B-C is that first segment is bent (cross sectional curve face I 15), and C-E is that second segment is bent (cross sectional curve face
II 16), and E-F is that third section is bent (cross sectional curve face III 17).The intermediate cross-section A-G of disc 5 is by X1 and X2 in axial direction
Positioning, wherein straight line A-B is biased outward, and straight line F-G is biased to inside, axial distance X2 >=16mm of straight line A-B and straight line F-G.
X2 >=16mm improves wheel overall performance, increases the axial drop of disc, increases the radial flexibility of wheel, is conducive to subtract
Small stress.If X2 is too small, stress will increase, and cause disc maximum static strength or maximum fatigue strength that can exceed that EN
Threshold value as defined in 13979-1 standards.
Wheel web is designed as by bending disc rail wheel of the present invention when designing or manufacturing rail wheel
Segmented (such as three-stage) reduces stress, improves the overall performance of wheel so as to be effectively increased the radial flexibility of wheel,
And above structure so that forging and pressing production process difficulty reduces.At the same time, rail wheel of the present invention is applied to railway
On car or lorry, it is suitable for tread brake or reel is braked, be easy to produce in batches, be especially easy to solid forging.The present invention
The bending disc rail wheel, it is simple in structure, while ensuring there is good braking ability, being easy to mass production,
It can realize wheel lightweight, ensure that wheel has rational intensity, rigidity and braking thermodynamic property, improve market competition
Power.
Illustrative description is carried out to the present invention above in conjunction with attached drawing, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, if the various improvement of inventive concept and technical scheme of the present invention progress are used, or it is not improved by this
The design of invention and technical solution directly apply to other occasions, are within the scope of the invention.
Claims (9)
1. a kind of bending disc rail wheel, it is characterised in that：The bending disc rail wheel includes wheel hub (1), wheel
Disc (2), wheel rim (3), the wheel spoke (2) are set as being in flexure plane structure, and disc (2) one end is connect with wheel hub (1),
Disc (2) other end is connect with wheel rim (3), and wheel web (2) includes disc side I (4) and disc side II (5), disc side
Multiple I flexure planes of side (6), disc side II is arranged to one end is connect with wheel rim (3) from connecting one end with wheel hub (1) in face I (4)
(5) multiple II flexure planes of side (7) are set to one end is connect with wheel rim (3) from connecting one end with wheel hub (1).
2. bending disc rail wheel according to claim 2, it is characterised in that：The side I of disc side I (4) is bent
Face (6) includes I flexure plane I (8) of side, I flexure plane II (9) of side, I flexure plane III (10) of side, and I flexure plane I (8) of side is set
It is set to the structure being inwardly recessed, I flexure plane II (9) of side is set as the structure outwardly protruded, the setting of I flexure plane III (10) of side
For the structure being inwardly recessed.
3. bending disc rail wheel according to claim 1, it is characterised in that：The side II of disc side II (5) is curved
Curved surface (7) includes II flexure plane I (11) of side, II flexure plane II (12) of side, II flexure plane III (13) of side, and side II is bent
Face I (11) is set as the structure outwardly protruded, and II flexure plane II (12) of side is set as the structure being inwardly recessed, and side II is bent
Face III (13) is the structure outwardly protruded.
4. bending disc rail wheel according to claim 1, it is characterised in that：The side of I flexure plane of side (6)
I flexure plane I (8) one end of face is connect with wheel hub (1), and I flexure plane I (8) other end of side connects with side I flexure plane II (9) one end
It connects, I flexure plane II (9) other end of side is connect with side I flexure plane III (10) one end, side I flexure plane III (10) other end
It is connect with wheel rim (3).
5. bending disc rail wheel according to claim 1, it is characterised in that：The side of II flexure plane of the side (7)
II flexure plane I (11) one end of face is connect with wheel hub (1), II flexure plane I (11) other end of side and II flexure plane II (12) of side
One end connects, and II flexure plane II (12) other end of side is connect with side II flexure plane III (13) one end, II flexure plane III of side
(13) other end is connect with wheel rim (3).
6. bending disc rail wheel according to claim 1, it is characterised in that：I flexure plane of side (6) and side
Face II flexure plane (7) centre position be arranged intermediate cross-section (14), intermediate cross-section (14) include cross sectional curve face I (15),
Cross sectional curve face II (16), cross sectional curve face III (17), cross sectional curve face II (15) axial direction vertex tangent are set as flat
Row is in the structure of wheel hub medial axis (18).
7. bending disc rail wheel according to claim 1, it is characterised in that：The cross of the intermediate cross-section (14)
The axial vertex tangent I (19) in section flexure face I (15) and the axial vertex tangent II (20) in cross sectional curve face III (17) it
Between angle ψ be arranged between 100 ° -135 °.
8. bending disc rail wheel according to claim 1, it is characterised in that：The disc (2) be set as from
Wheel hub (1) connection one end, which is arrived, connect thickness gradual thinning structure in one end with wheel rim (3).
9. bending disc rail wheel according to claim 1, it is characterised in that：The side of I flexure plane of side (6)
The outer radius R1 of I flexure plane I (8) of face is arranged between 70mm-150mm, II flexure plane I of side of II flexure plane of side (7)
(11) outer radius R2 is arranged between 70mm-150mm, the outside half of I flexure plane II (9) of side of I flexure plane of side (6)
Diameter R3 is arranged between 45mm-125mm, the outer radius R4 settings of II flexure plane II (12) of side of II flexure plane of side (7)
Between 45mm-125mm, the outer radius R5 of I flexure plane III (10) of side of I flexure plane of side (6) is arranged in 25mm-
Between 125mm, the outer radius R6 of II flexure plane III (13) of side is arranged between 25mm-125mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375749.2A CN108501615A (en) | 2018-04-25 | 2018-04-25 | A kind of bending disc rail wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375749.2A CN108501615A (en) | 2018-04-25 | 2018-04-25 | A kind of bending disc rail wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108501615A true CN108501615A (en) | 2018-09-07 |
Family
ID=63399098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810375749.2A Pending CN108501615A (en) | 2018-04-25 | 2018-04-25 | A kind of bending disc rail wheel |
Country Status (1)
| Country | Link |
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| CN (1) | CN108501615A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060834A (en) * | 2020-09-16 | 2020-12-11 | 宝武集团马钢轨交材料科技有限公司 | Locomotive integral wheel and design method thereof |
| CN114523803A (en) * | 2022-03-14 | 2022-05-24 | 宝武集团马钢轨交材料科技有限公司 | Lightweight heavy-duty wheel pair and design method thereof |
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| CN106142979A (en) * | 2016-06-29 | 2016-11-23 | 西南交通大学 | Rail vehicle S-shaped web pattern wheel with three sections of tangent arcs |
| CN206551788U (en) * | 2017-01-05 | 2017-10-13 | 扬州华铁铁路配件有限公司 | A kind of spoke of railcar wheel |
| CN208452697U (en) * | 2018-04-25 | 2019-02-01 | 马钢(集团)控股有限公司 | It is bent disc rail wheel |
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| CN101500822A (en) * | 2006-08-04 | 2009-08-05 | 卢基尼Rs公司 | Freight railway wheel with high braking capacity |
| CN104136235A (en) * | 2011-12-16 | 2014-11-05 | "维克萨"股份公司 | Railway wheel |
| CN106142979A (en) * | 2016-06-29 | 2016-11-23 | 西南交通大学 | Rail vehicle S-shaped web pattern wheel with three sections of tangent arcs |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060834A (en) * | 2020-09-16 | 2020-12-11 | 宝武集团马钢轨交材料科技有限公司 | Locomotive integral wheel and design method thereof |
| WO2022057272A1 (en) * | 2020-09-16 | 2022-03-24 | 宝武集团马钢轨交材料科技有限公司 | Locomotive integrated wheel and design method therefor |
| CN114523803A (en) * | 2022-03-14 | 2022-05-24 | 宝武集团马钢轨交材料科技有限公司 | Lightweight heavy-duty wheel pair and design method thereof |
| CN114523803B (en) * | 2022-03-14 | 2024-03-08 | 宝武集团马钢轨交材料科技有限公司 | Lightweight heavy-duty wheel set and design method thereof |
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