CN108999898A - Bullet train axle-mounted brake disk - Google Patents
Bullet train axle-mounted brake disk Download PDFInfo
- Publication number
- CN108999898A CN108999898A CN201811182348.1A CN201811182348A CN108999898A CN 108999898 A CN108999898 A CN 108999898A CN 201811182348 A CN201811182348 A CN 201811182348A CN 108999898 A CN108999898 A CN 108999898A
- Authority
- CN
- China
- Prior art keywords
- radiating ribs
- disk body
- tooth
- ring
- hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention belongs to train braking device technical fields, and in particular to a kind of bullet train axle-mounted brake disk.It includes disk body, hub, pressure ring and fastener；The disk body is the Integral welded disk body with radiating ribs；Hub have 9 equal circumference distribution centre have bolt hole hub flange tooth, with have in pressure ring mating surface 3 equal circumference be distributed tooth socket；There are the bolt hole of 9 equal circumference distributions and the pressure ring flange tooth of 3 equal circumference distribution being adapted to the tooth socket on pressure ring.The present invention changes the processing method of former bullet train axle-mounted brake disk disk body, and existing forging type is replaced by way of forging and welding, the yield rate of product is improved, reduces the production cost of product, shorten the delivery cycle of product；The structure of primitive axis brake disk mounted hub and pressure ring is also improved simultaneously, all freedom degrees of the pressure ring in addition to longitudinal direction is constrained, reduces the moment of flexure that bolt is subject to, effectively increase brake disc service life, improve product core competitiveness.
Description
Technical field
The invention belongs to train braking device technical fields, and in particular to a kind of bullet train axle-mounted brake disk.
Background technique
Currently, country's CRH series EMU and " revive number " EMU all use disc brake mode, wherein trailer
All installation bullet train axle-mounted brake disks.Existing EMU axle-mounted brake disk is mainly by disk body, hub, pressure ring and fastening
Part is constituted.
Disk body is the integral cast steel structure with radiating ribs, by two panels drag ring, multiple radiating ribs and 9 equal circumference point
The flange tooth of cloth forms: drag ring is that have certain thickness entity annulus, plays and brake lining friction catch and absorbs friction and produce
The effect of raw heat；Radiating ribs are to be similar to cylindrical or elliptical cylinder-shape entity, are distributed according to certain queueing discipline
Between two drag rings, play the role of connecting two drag rings and heat dissipation；Flange tooth is the intermediate flange for having bolt hole, etc.
Circle distribution plays the role of connecting disk body and hub between two drag rings.Since radiating ribs are distributed in two panels drag ring
Centre, disk body can not use forging molding, can only use casting and forming.
Also the centre that there is hub 9 equal circumference to be distributed has the flange tooth of bolt hole, for brake disc to be fixed on vehicle
On axis；Pressure ring is that have certain thickness annulus, the bolt hole for having 9 equal circumference to be distributed on annulus；It, will when group is brake disk mounted
9 bolts hole alignment on disk body, hub and pressure ring, then penetrates screw bolt and nut and fixes；After brake disc is completed, pass through
Brake disc is fixed on axle by the mode of press fitting.Phase mutual friction is simultaneously after train applies braking, between brake disc disk body and brake lining
Braking friction torque is generated, braking friction torque is transmitted on axle by hub, to realize the braking function of train.
Currently, domestic integral casting process level is not high, and disk body requires the control of casting flaw very strict, causes
Country's casting disk body yield rate is very low and unstable quality, it is difficult to guarantee brake disc high-volume operation on locomotive, therefore domestic dynamic
Vehicle group brake disc disk body cast blank depends on import, and import disk body cast blank is at high cost and delivery cycle is long, is unfavorable for dropping
The cost of low EMU is also unfavorable for improving the product core competitiveness of EMU.
In addition, on the more severe Lan Xin line of line condition, EMU axle-mounted brake disk repeatedly occur bolt fracture or
The phenomenon that person loses.The reason of in order to find bolt fracture, has carried out physico-chemical analysis and fracture to the bolt being broken on the line
Macroscopic view and Optical microscopy, assert that the failure mode of bolt is crooked fatigue fracture.Moment of flexure is born in order to find bolt
Reason has carried out temperature and vibration-testing to the brake disc on existing vehicle, and discovery EMU is in operation and braking process, brake disc
Temperature and level of vibration are apparently higher than standard value.Vibration and temperature can cause pressure ring to generate relative displacement relative to hub, into
And bolt is made to bear moment of flexure, bolt bends fatigue fracture.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of the present invention is to provide a kind of bolt be not easy bear Moment,
And independent of casting and forming but use the bullet train axle-mounted brake disk forged with welding fabrication.
To realize the above-mentioned technical purpose, the following technical solution is employed: bullet train axle-mounted brake disk, including disk by the present invention
Body, hub, pressure ring and fastener；The disk body is the Integral welded disk body with radiating ribs, and has 9 equal circumference distributions
Centre have bolt hole disk body flange tooth；The hub flange that there is hub the centre of 9 equal circumference distribution to have bolt hole
Tooth, with have in pressure ring mating surface 3 equal circumference be distributed tooth socket；Have on pressure ring the distribution of 9 equal circumference bolt hole and 3 etc.
The pressure ring flange tooth of circle distribution being adapted to the tooth socket.
The disk body includes two panels drag ring, the multiple radiating ribs being distributed between drag ring described in two panels and 9 etc.
The disk body flange tooth of circle distribution；The drag ring, radiating ribs, disk body flange tooth are difference forging molding；The radiating ribs, institute
Disk body flange tooth is stated mutually to weld with two drag rings respectively.
The radiating ribs are cylindrical masses as a preferred technical solution, and the diameter of each radiating ribs is identical with length.
The radiating ribs circle distributions such as on drag ring as a preferred technical solution, according to radiating ribs distribution circle
Size is divided into outer ring radiating ribs, centre circle radiating ribs and inner ring radiating ribs.
The number of outer ring radiating ribs is not more than the number of centre circle radiating ribs, centre circle radiating ribs as a preferred technical solution,
Number be not more than inner ring radiating ribs number, and the distance between two neighboring radiating ribs be 20mm~35mm.
It is machined on the drag ring as a preferred technical solution, opposite respectively with the radiating ribs, disk body flange tooth
The groove answered.
The depth of the groove is 1mm~2mm as a preferred technical solution,.
The welding method of the radiating ribs, disk body flange tooth and drag ring is as follows as a preferred technical solution: first by institute
State radiating ribs and disk body flange tooth ends correspondence be inserted into the groove of drag ring, two panels drag ring in the state of compression, then
Radiating ribs and disk body flange tooth are welded on drag ring, pressure maintaining processing is carried out after the completion of welding.
The bolthole circle diameter of disk body flange tooth and the bolthole circle of pressure ring are straight as a preferred technical solution,
Diameter is equal, and 1mm~2mm smaller than the bolthole circle diameter of hub flange tooth；The diameter of bolt hole of pressure ring is than hub flange
Big 1mm~the 2mm of the diameter of bolt hole of tooth.
20 ° of pressure ring flange tooth adjacent on pressure ring and bolt hole interval are arranged as a preferred technical solution, phase in hub
The tooth socket of adjacent tooth socket and the arrangement of 20 ° of hub flange tooth bolt hole interval, pressure ring flange tooth and hub belongs to clearance fit.
Due to the adoption of the above technical scheme, the present invention have it is at least following the utility model has the advantages that
(1) present invention changes the processing method of former bullet train axle-mounted brake disk disk body, passes through the side forged and welded
Formula replaces existing forging type.The yield rate of product can be improved in forging method, is conducive to control and the product of product quality
Production domesticization, reduces the production cost of product, shortens the delivery cycle of product, reduce the cost of EMU, improve the production of EMU
Product core competitiveness；
(2) radiating ribs are the cylindrical and circle distributions such as on drag ring in the present invention, advantageously reduce brake disc in height
With the frictional resistance of air in fast rotation process, thus energy loss can be reduced.In addition, radiating ribs section circular diameter is φ 15
~φ 20mm, and the distance between two neighboring radiating ribs are 20mm~35mm, are conducive to mechanical strength, the thermal diffusivity of brake disc
And the comprehensive performance of three aspect of lightweight is optimal；
(3) number of outer ring radiating ribs is no more than the number of centre circle radiating ribs in the present invention, and the number of centre circle radiating ribs is not
Greater than the number of inner ring radiating ribs, in this way radiating ribs spacing under the same conditions, the quantity of inner ring radiating ribs is more, ensure that interior
The ratio that circle radiating ribs heat dissipation accounts for, conducive to the heat dissipation performance for improving brake disc；The quantity of outer ring radiating ribs is few, thus reduces outer
The windage resistance proportion that radiating ribs generate is enclosed, conducive to the windage resistance for reducing brake disc；
(4) groove in the present invention on drag ring is convenient for the positioning of radiating ribs and flange tooth；In drag ring, radiating ribs and method
It is welded under blue tooth pressured state, conducive to effect by initial compression after the completion of welding brake disc, and offsets disk body
The part tensile stress being subject in braking process, can reduce the stress amplitude of disk body, improve the fatigue behaviour of disk body；
(5) invention also improves the structures of primitive axis brake disk mounted hub and pressure ring.Pressure ring increases 3 equal circumference distributions
Flange tooth, the corresponding tooth socket for increasing the distribution of 3 equal circumference of hub, pressure ring flange tooth and hub tooth socket cooperate, constraint
All freedom degrees of the pressure ring in addition to longitudinal direction.Brake disc is tested in the vibration test of testing stand and is proved, the tooth of pressure ring and hub
Slot cooperates the relative displacement that can be substantially reduced pressure ring and hub, and the relative displacement of pressure ring and hub reduces, and bolt is subject to curved
Square will also reduce, conducive to the service life for improving brake disc and bolt；
(6) present invention in junk ring bolt pore size distribution circular diameter it is 1mm smaller than the bolthole circle diameter of hub flange tooth~
2mm, junk ring bolt bore dia are 1mm~2mm bigger than hub flange tooth diameter of bolt hole, allow for after pressure ring is heated relative to disk
Hub can generate the radial expansion volume of 1mm~2mm, the bolt pore size distribution due to junk ring bolt pore size distribution circular diameter than hub flange tooth
Circular diameter is small and junk ring bolt bore dia is bigger than hub flange tooth diameter of bolt hole, therefore even if pressure ring generates diameter relative to hub
To expansion, bolt will not be by moment of flexure.
Detailed description of the invention
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein:
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of disk body；
Fig. 3 is the structural schematic diagram of hub；
Fig. 4 is the structural schematic diagram of pressure ring；
Fig. 5 is the structural schematic diagram of drag ring.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is further explained.In the following detailed description, only pass through explanation
Mode describes certain exemplary embodiments of the invention.Undoubtedly, those skilled in the art will recognize,
In the case where without departing from the spirit and scope of the present invention, described embodiment can be repaired with a variety of different modes
Just.Therefore, attached drawing and description are regarded as illustrative in nature, and are not intended to limit the scope of the claims.
Embodiment
As shown in Figure 1, bullet train axle-mounted brake disk, comprising: welding disk body 1, hub 2, the harness fastener of pressure ring 3 and 94.
Referring to figs. 2 and 5, welding disk body 1 is including in 2 drag rings 11, the distribution of multiple radiating ribs 12 and 9 equal circumference
Between have bolt hole disk body flange tooth 13；11 unilateral side of drag ring process equal circumference distribution outer ring radiating ribs groove 14, in
Enclose radiating ribs groove 15, inner ring radiating ribs groove 16 and 9 flange mark of mouth slots 17, depth of groove is consistent and depth be 1mm~
2mm, the number of outer ring radiating ribs groove 14 are not more than the number of centre circle radiating ribs groove 15, the number of centre circle radiating ribs groove 15
No more than the number of inner ring radiating ribs groove 16, and the distance between two neighboring radiating ribs groove is 20mm~35mm；Each
12 section circular diameter of radiating ribs is identical with length and is cylinder, and section circular diameter is φ 15mm~φ 20mm, radiating ribs 12
Quantity is equal with the quantity of drag ring radiating ribs groove, radiating ribs 12 is sequentially inserted into the radiating ribs groove of drag ring；By 9
A disk body flange tooth 13 is sequentially inserted into the flange mark of mouth slot 17 of drag ring；In the state that drag ring 11 is pressurized, it will radiate
Muscle 12 and disk body flange tooth 13 are welded on drag ring 11, and pressure maintaining is carried out after the completion of welding.
With reference to Fig. 3, the hub flange tooth 21 that there is hub 2 centre of 9 equal circumference distribution to have bolt hole, disk body flange
18 diameter of tooth bolthole circle is 1mm~2mm smaller than hub flange tooth 22 diameters of bolthole circle, and hub 2 is waited there are also 3 justifies
The tooth socket 23 of week distribution, adjacent tooth socket 23 and hub flange tooth bolt hole 24 are spaced 20 ° of arrangements.
With reference to Fig. 4, pressure ring 3 has the pressure ring flange tooth of the junk ring bolt hole 31 and 3 equal circumference distribution of 9 equal circumference distributions
32, junk ring bolt pore size distribution 33 diameters 3 of circle are equal with disk body flange tooth 18 diameters of bolthole circle, 31 diameter of junk ring bolt hole
1mm~2mm bigger than hub flange tooth 24 diameters of bolt hole, adjacent pressure ring flange tooth 32 and junk ring bolt hole 31 are spaced 20 ° of rows
Cloth, pressure ring flange tooth 32 and tooth socket 23 belong to clearance fit.
When group is brake disk mounted, disk body flange tooth 13 is contacted with hub flange tooth 21, disk body flange tooth bolt hole 19 and hub
Flange tooth bolt hole 24 is aligned, and junk ring bolt hole 31 is aligned with disk body flange tooth bolt hole 19, and pressure ring flange tooth 32 is inserted into disk
In hub tooth socket 23；Bolt is finally successively penetrated to junk ring bolt hole 31, disk body flange tooth bolt hole 19 and hub flange tooth bolt
It is in hole 24 and fixed.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.It is any
Those skilled in the art, made equivalent changes and modifications under the premise of not departing from design and the principle of the present invention,
It should belong to the scope of protection of the invention.
Claims (10)
1. bullet train axle-mounted brake disk, including disk body, hub, pressure ring and fastener；Be characterized in that: the disk body is with scattered
The Integral welded disk body of hot muscle, and the centre with the distribution of 9 equal circumference has the disk body flange tooth of bolt hole；Hub has
9 equal circumference distribution centre have bolt hole hub flange tooth, with have in pressure ring mating surface 3 equal circumference be distributed tooth
Slot；There are the bolt hole of 9 equal circumference distributions and the pressure ring flange tooth of 3 equal circumference distribution being adapted to the tooth socket on pressure ring.
2. bullet train axle-mounted brake disk as described in claim 1, it is characterised in that: the disk body include two panels drag ring,
The multiple radiating ribs being distributed between drag ring described in two panels and the disk body flange tooth of 9 equal circumference distribution；The drag ring,
Radiating ribs, disk body flange tooth are difference forging molding；The radiating ribs, the disk body flange tooth respectively with two drag rings
Mutually weld.
3. bullet train axle-mounted brake disk as claimed in claim 2, it is characterised in that: the radiating ribs are cylindrical masses,
The diameter of each radiating ribs is identical with length.
4. bullet train axle-mounted brake disk as claimed in claim 2, it is characterised in that: the radiating ribs equal circle on drag ring
Week distribution is divided into outer ring radiating ribs, centre circle radiating ribs and inner ring radiating ribs according to the size of radiating ribs distribution circle.
5. bullet train axle-mounted brake disk as claimed in claim 4, it is characterised in that: during the number of outer ring radiating ribs is not more than
The number of radiating ribs is enclosed, the number of centre circle radiating ribs is not more than the number of inner ring radiating ribs, and between two neighboring radiating ribs
Distance is 20mm~35mm.
6. bullet train axle-mounted brake disk as claimed in claim 4, it is characterised in that: the drag ring is equipped with to be dissipated with described
Hot muscle, disk body flange tooth distinguish corresponding groove.
7. bullet train axle-mounted brake disk as claimed in claim 6, it is characterised in that: the depth of the groove be 1mm~
2mm。
8. bullet train axle-mounted brake disk as claimed in claims 6 or 7, it is characterised in that: the radiating ribs, disk body flange tooth
It is as follows with the welding method of drag ring: first by the radiating ribs and the corresponding groove for being inserted into drag ring of disk body flange tooth ends
In, two panels drag ring is welded on drag ring in the state of compression, then by radiating ribs and disk body flange tooth, and welding is completed laggard
Row pressure maintaining processing.
9. bullet train axle-mounted brake disk as described in claim 1, it is characterised in that: the bolthole circle of disk body flange tooth
Diameter is equal with the bolthole circle diameter of pressure ring, and 1mm~2mm smaller than the bolthole circle diameter of hub flange tooth；
The diameter of bolt hole of pressure ring is 1mm~2mm bigger than the diameter of bolt hole of hub flange tooth.
10. bullet train axle-mounted brake disk as described in claim 1, it is characterised in that: adjacent pressure ring flange tooth on pressure ring
It arranges for 20 ° with bolt hole interval, adjacent tooth socket and the arrangement of 20 ° of hub flange tooth bolt hole interval, pressure ring flange tooth in hub
Belong to clearance fit with the tooth socket of hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811182348.1A CN108999898A (en) | 2018-10-11 | 2018-10-11 | Bullet train axle-mounted brake disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811182348.1A CN108999898A (en) | 2018-10-11 | 2018-10-11 | Bullet train axle-mounted brake disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108999898A true CN108999898A (en) | 2018-12-14 |
Family
ID=64589389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811182348.1A Pending CN108999898A (en) | 2018-10-11 | 2018-10-11 | Bullet train axle-mounted brake disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108999898A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307277A (en) * | 2019-08-05 | 2019-10-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of brake disc arrangement and braking system |
| CN110552981A (en) * | 2019-09-27 | 2019-12-10 | 南京中盛铁路车辆配件有限公司 | novel railway vehicle shaft-mounted brake disc |
| CN111594559A (en) * | 2020-06-10 | 2020-08-28 | 南京中车浦镇海泰制动设备有限公司 | Split wheel-mounted brake disc |
| CN114738403A (en) * | 2022-04-08 | 2022-07-12 | 中国铁道科学研究院集团有限公司 | Brake disc |
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| DE4125701A1 (en) * | 1991-08-02 | 1993-02-04 | Knorr Bremse Ag | AXLE BRAKE DISC FOR RAIL VEHICLES |
| CN1786507A (en) * | 2005-10-24 | 2006-06-14 | 北京交通大学 | Shaft mounted brake disk of SiC granule enhanced aluminium based composite material |
| CN201335115Y (en) * | 2008-12-09 | 2009-10-28 | 北京纵横机电技术开发公司 | Brake disc device installed on axle and brake disc hub thereof |
| CN201335113Y (en) * | 2008-12-09 | 2009-10-28 | 北京纵横机电技术开发公司 | Brake disc device installed on shaft |
| CN103912612A (en) * | 2012-12-31 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake disc and friction ring thereof |
| CN204140717U (en) * | 2014-08-27 | 2015-02-04 | 常州南车铁马科技实业有限公司 | A kind of track traffic brake disc device installed on shaft |
| CN105065515A (en) * | 2015-07-21 | 2015-11-18 | 青岛四方车辆研究所有限公司 | High-speed train shaft-mounted brake disc with slider structure |
| CN205118081U (en) * | 2015-10-12 | 2016-03-30 | 汶上海纬机车配件有限公司 | High -speed EMUs axle dress brake disc |
| WO2016058792A1 (en) * | 2014-10-15 | 2016-04-21 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Shaft brake disk, in particular for a rail vehicle |
| CN205371393U (en) * | 2016-02-02 | 2016-07-06 | 李红梅 | Automobile brake disk |
| CN106151322A (en) * | 2016-08-30 | 2016-11-23 | 常州中车铁马科技实业有限公司 | Axle-mounted brake disk |
| CN207777471U (en) * | 2017-12-08 | 2018-08-28 | 常州中车铁马科技实业有限公司 | Brake disc and rail traffic vehicles |
-
2018
- 2018-10-11 CN CN201811182348.1A patent/CN108999898A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4125701A1 (en) * | 1991-08-02 | 1993-02-04 | Knorr Bremse Ag | AXLE BRAKE DISC FOR RAIL VEHICLES |
| CN1786507A (en) * | 2005-10-24 | 2006-06-14 | 北京交通大学 | Shaft mounted brake disk of SiC granule enhanced aluminium based composite material |
| CN201335115Y (en) * | 2008-12-09 | 2009-10-28 | 北京纵横机电技术开发公司 | Brake disc device installed on axle and brake disc hub thereof |
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| WO2016058792A1 (en) * | 2014-10-15 | 2016-04-21 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Shaft brake disk, in particular for a rail vehicle |
| CN105065515A (en) * | 2015-07-21 | 2015-11-18 | 青岛四方车辆研究所有限公司 | High-speed train shaft-mounted brake disc with slider structure |
| CN205118081U (en) * | 2015-10-12 | 2016-03-30 | 汶上海纬机车配件有限公司 | High -speed EMUs axle dress brake disc |
| CN205371393U (en) * | 2016-02-02 | 2016-07-06 | 李红梅 | Automobile brake disk |
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| CN207777471U (en) * | 2017-12-08 | 2018-08-28 | 常州中车铁马科技实业有限公司 | Brake disc and rail traffic vehicles |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307277A (en) * | 2019-08-05 | 2019-10-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of brake disc arrangement and braking system |
| CN110552981A (en) * | 2019-09-27 | 2019-12-10 | 南京中盛铁路车辆配件有限公司 | novel railway vehicle shaft-mounted brake disc |
| CN110552981B (en) * | 2019-09-27 | 2020-09-08 | 南京中盛铁路车辆配件有限公司 | Novel railway vehicle shaft-mounted brake disc |
| CN111594559A (en) * | 2020-06-10 | 2020-08-28 | 南京中车浦镇海泰制动设备有限公司 | Split wheel-mounted brake disc |
| CN114738403A (en) * | 2022-04-08 | 2022-07-12 | 中国铁道科学研究院集团有限公司 | Brake disc |
| CN114738403B (en) * | 2022-04-08 | 2024-04-26 | 中国铁道科学研究院集团有限公司 | Brake disc |
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Application publication date: 20181214 |