CN209925469U - Carbon pottery axle dress brake disc suitable for high-speed EMUs - Google Patents
Carbon pottery axle dress brake disc suitable for high-speed EMUs Download PDFInfo
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- CN209925469U CN209925469U CN201920363478.9U CN201920363478U CN209925469U CN 209925469 U CN209925469 U CN 209925469U CN 201920363478 U CN201920363478 U CN 201920363478U CN 209925469 U CN209925469 U CN 209925469U
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Abstract
The utility model discloses a carbon pottery axle dress brake disc suitable for high-speed EMUs, including hub (1), hub (1) external fixation cover is equipped with isolation supporter (2), first carbon pottery frictional body (3), second carbon pottery frictional body (4) and clamping ring (5), isolation supporter (2), first carbon pottery frictional body (3), second carbon pottery frictional body (4) and clamping ring (5) are the ring shape, first carbon pottery frictional body (3), isolation supporter (2) and second carbon pottery frictional body (4) stack gradually the setting along the axis direction of hub (1), clamping ring (5) cover is located in first carbon pottery frictional body (3), clamping ring (5) and isolation supporter (2) stack up the setting. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit adopts a heat insulation composite structure, so that the service life of the brake disc can be greatly prolonged, and the long-term reliability of locomotive running is ensured.
Description
Technical Field
The utility model relates to a vehicle braking technical field, specific is a carbon pottery axle dress brake disc suitable for high-speed EMUs.
Background
The braking system is one of the key technologies of the rolling stock and is directly related to the running safety of the train. At present, disc brake research and application in China have been greatly developed, and disc brake devices are installed on all high-speed motor train units. The most critical device of the braking mode is a brake disc. According to the installation mode, the brake disc for the high-speed motor train unit is generally divided into a shaft-mounted brake disc and a wheel-mounted brake disc. The loads experienced during braking are: the brake disc works under complex working conditions of strong friction, high thermal load, larger braking force, centrifugal force and the like such as self weight, braking torque, thermal load, vibration impact load and the like, the reliability of the working of the brake disc almost determines the reliability level of the structure of the whole basic brake device, and the driving safety of the railway locomotive vehicle is directly influenced.
The brake disc and the brake pad are used as a pair of friction pairs for basic braking, during the braking process, according to the energy conservation theory, the kinetic energy of the train in high-speed motion is in direct proportion to the square of the speed of the train, when the train brakes, the mutual friction of the brake disc and the brake pad converts the kinetic energy of the train into heat energy, one part of the heat energy is dissipated in the air, and the other part of the heat energy forms the heat load of the brake disc and the brake pad. As the speed of the train increases, the thermal load generated during braking increases significantly.
The traditional cast steel brake disc is currently applied to a high-speed train with the speed per hour of 350km/h, hot spots and thermal fatigue cracks are easily formed under the high-temperature environment of long-time braking, the thermal load is close to the use limit of the cast steel brake disc, and the cast steel brake disc is difficult to meet the use requirement along with the increase of the train speed.
The traditional cast steel brake disc is heavy, and is unfavorable to the heavy weight that subtracts of the heavy requirement of train especially unsprung mass, and utility model light, high temperature resistance brake disc are to train speed-up, energy saving and emission reduction, have important guiding significance.
If the pure carbon ceramic brake disc is used for a high-speed motor train unit, the safety is not considered. Firstly, because the carbon ceramic material is brittle and has low strength, if the whole carbon ceramic shaft-mounted brake disc structure is applied to a high-speed motor train unit, the carbon ceramic shaft-mounted brake disc structure is difficult to bear high brake pressure and brake torque; if fastening bolt puts at brake disc annular center, this department's temperature is the highest among the braking process, and high temperature can make the bolt inflation, and then the axial force descends for brake disc uses inefficacy or bolt emergence fatigue fracture, and then influences driving safety.
SUMMERY OF THE UTILITY MODEL
In order to satisfy the speed of a motor train unit user demand at a high speed of 350km/h above, reduce train unsprung mass, energy saving and emission reduction, guarantee train safety operation, the utility model provides a carbon pottery axle dress brake disc suitable for high-speed motor train unit, this carbon pottery axle dress brake disc suitable for high-speed motor train unit has adopted thermal-insulated combined type structure, can improve the life of brake disc greatly, has guaranteed the long-term reliability of high-speed motor train unit operation.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a carbon pottery axle dress brake disc suitable for high-speed EMUs, includes the hub, and the hub external fixation cover is equipped with keeps apart supporter, first carbon pottery frictional body, second carbon pottery frictional body and clamping ring, keeps apart the supporter, first carbon pottery frictional body, second carbon pottery frictional body and clamping ring and is the ring shape, and first carbon pottery frictional body, keep apart supporter and second carbon pottery frictional body stack gradually the setting along the axis direction of hub, and the clamping ring cover is located in the first carbon pottery frictional body, and the clamping ring sets up with keeping apart the supporter range upon range of.
Along the circumference of keeping apart the supporter, keep apart and be equipped with a plurality of bolt through-holes in the supporter, be equipped with the bolt in the bolt through-hole, the both ends of bolt are pegged graft respectively in first carbon pottery frictional body and second carbon pottery frictional body.
The bolt through-hole overcoat is equipped with first protruding ring, and first protruding ring is located the both sides surface of keeping apart the supporter, and the section at the middle part of bolt is oval, and the both ends of bolt are the cuboid structure, and the surface of first carbon pottery frictional body and second carbon pottery frictional body all is equipped with the blind groove of bolt, and this blind groove length direction of bolt is the same with the diameter direction who keeps apart the supporter.
Between two adjacent bolt through-holes, all be equipped with a plurality of bar beads on keeping apart the both sides surface of supporter, the length direction of bar bead is the same with the diameter direction who keeps apart the supporter.
The outer side edges of the isolation support body, the first carbon ceramic friction body and the second carbon ceramic friction body are respectively provided with an outer side bolt hole, and the outer side bolts sequentially penetrate through the outer side bolt holes of the first carbon ceramic friction body, the isolation support body and the second carbon ceramic friction body.
The inner side edges of the isolation support body, the first carbon ceramic friction body and the second carbon ceramic friction body are respectively provided with an inner side bolt hole, and the inner side second bolt sequentially penetrates through the inner side bolt holes of the first carbon ceramic friction body, the isolation support body and the second carbon ceramic friction body.
Keep apart the both sides outward flange of supporter and all be equipped with the protruding ring of second, outside the protruding ring cover of second was located outside bolt, the protruding outer convex ring of second was connected with protruding strip, and protruding strip is located the both sides of keeping apart the supporter, and protruding strip is located between first protruding ring and the bar bead.
The dish hub is equipped with a plurality of outside and connects the claw outward, and a plurality of outside are connected the claw and are followed the circumference evenly distributed of dish hub, and the inboard of keeping apart the supporter is equipped with a plurality of first connecting claws, and first connecting claw is connected through inboard first bolt one-to-one with the outside connection claw.
Keep apart the inboard edge of supporter and still be equipped with a plurality of second and connect the claw, a plurality of second are connected the claw and are followed isolation supporter circumference evenly distributed, and the second is connected the claw and is crisscross the arranging with first connection claw.
The inboard edge of first carbon pottery frictional body is equipped with a plurality of first inboard connection claws, and the inboard edge of second carbon pottery frictional body is equipped with a plurality of second inboard connection claws, and the inboard edge of keeping apart the supporter is equipped with inboard second bolt, and first inboard connection claw, second connection claw and the inboard connection claw of second are passed in proper order to inboard second bolt, and the volume of first connection claw is greater than the volume of second connection claw.
The structures of the surfaces on the two sides of the isolation support body are mirror images, the first carbon ceramic friction body and the second carbon ceramic friction body are mirror images, and the surfaces on the two sides of the isolation support body are provided with heat insulation ceramic coatings.
The utility model has the advantages that:
1. the carbon ceramic wheel-mounted brake disc suitable for the high-speed motor train unit adopts a heat insulation composite structure, so that the service life of the brake disc can be greatly prolonged, and the long-term reliability of the operation of a locomotive is ensured.
2. Compared with the existing brake disc, the weight can be reduced by 30-50%.
3. The device is particularly suitable for motor train unit trains with the speed per hour of more than 350 kilometers.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a perspective view of carbon pottery axle dress brake disc suitable for high-speed EMUs.
Fig. 2 is a front view of the carbon pottery axle dress brake disc suitable for high-speed EMUs of the utility model.
Fig. 3 is a sectional view taken along a-a in fig. 2.
Fig. 4 is a sectional view taken along the direction B-B in fig. 2.
Fig. 5 is a front view of the isolation support.
Fig. 6 is a perspective view of an isolation support.
Fig. 7 is a front view of the first carbon ceramic friction body.
Fig. 8 is a rear view of the first carbon ceramic friction body.
Fig. 9 is a perspective view of the first carbon ceramic friction body.
1. A hub; 2. isolating the support body; 3. a first carbon ceramic friction body; 4. a second carbon pottery friction body; 5. pressing a ring;
11. an outer connecting claw;
21. a bolt through hole; 22. a strip-shaped rib; 23. a first raised ring; 24. isolating the inner side of the support body; 25. a second raised ring; 26. a raised strip; 27. a first connecting claw; 28. a second connecting claw; 29. an outer bolt hole; 210. an inner bolt hole;
31. a first inner connecting claw; 32. a first blind slot for a bolt;
41. a second inner connecting claw; 42. a second bolt blind slot;
51. a bolt; 52. an outer bolt; 53. an inner first bolt; 54. and an inboard second bolt.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides a carbon pottery axle dress brake disc suitable for high-speed EMUs, including hub 1, hub 1 external fixation cover is equipped with isolation supporter 2, first carbon pottery frictional body 3, second carbon pottery frictional body 4 and clamping ring 5, isolation supporter 2, first carbon pottery frictional body 3, second carbon pottery frictional body 4 and clamping ring 5 are the ring shape, first carbon pottery frictional body 3, isolation supporter 2 and second carbon pottery frictional body 4 stack gradually the setting along the axis (the chain line in figure 3) direction of hub 1, clamping ring 5 cover is located in first carbon pottery frictional body 3, clamping ring 5 stacks up the setting with isolation supporter 2, as shown in figures 1-3.
In this embodiment, the isolation support body 2, the first carbon ceramic friction body 3, and the second carbon ceramic friction body 4 are all sheet structures, and the center line of the pressing ring 5, the center line of the hub 1, the center line of the first carbon ceramic friction body 3, the center line of the isolation support body 2, and the center line of the second carbon ceramic friction body coincide with each other. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit can be 80-110 mm in overall thickness.
In this embodiment, along the circumferential direction of the isolation support body 2, a plurality of plug pin through holes 21 are formed in the isolation support body 2, plug pins 51 are formed in the plug pin through holes 21, and two ends of the plug pins 51 are respectively inserted into the first carbon ceramic friction body 3 and the second carbon ceramic friction body 4, as shown in fig. 4.
In this embodiment, the first protruding ring 23 is sleeved outside the bolt through hole 21, the first protruding ring 23 is located on two side surfaces of the isolation support body 2, the middle section of the bolt 51 is oval, two ends of the bolt 51 are of rectangular structures, the area of the middle section of the bolt 51 is about the area of the two end sections of the bolt 51, bolt blind grooves (including the first bolt blind groove 32 included in the first carbon ceramic friction body 3 and the second bolt blind groove 42 included in the second carbon ceramic friction body 4) are both arranged on the surfaces of the first carbon ceramic friction body 3 and the second carbon ceramic friction body 4, the bolt blind grooves are in a long strip shape, and the length direction of the bolt blind grooves is the same as the diameter direction of the isolation support body 2, as shown in fig. 4 to 9.
The middle part of the bolt 51 is located in the bolt through hole 21, and two ends of the bolt 51 are respectively located in the first bolt blind groove 32 and the second bolt blind groove 42, as shown in fig. 4, the bolt 51 has the function of facilitating installation and connection of the isolation support body 2 and the first carbon ceramic friction body 3 and the second carbon ceramic friction body 4, and improving the anti-shearing capability of the connecting bolt in the carbon ceramic shaft-mounted brake disc suitable for the high-speed motor train unit. The first raised ring 23 serves to increase the contact area to facilitate heat dissipation.
In this embodiment, a plurality of strip-shaped ribs 22 are provided on both side surfaces of the isolating support body 2 between two adjacent plug through holes 21, and the length direction of the strip-shaped ribs 22 is the same as the diameter direction of the isolating support body 2. The main function of the ribs 22 is to increase the contact area for heat dissipation, as shown in fig. 5 and 6.
In this embodiment, the outer side edges of the isolation support body 2, the first carbon ceramic friction body 3 and the second carbon ceramic friction body 4 are respectively provided with an outer side bolt hole 29, and the outer side bolt 52 sequentially passes through the outer side bolt holes 29 of the first carbon ceramic friction body 3, the isolation support body 2 and the second carbon ceramic friction body 4. The inner side edges of the isolation support body 2, the first carbon ceramic friction body 3 and the second carbon ceramic friction body 4 are respectively provided with an inner side bolt hole 210, and the inner side second bolt 54 sequentially penetrates through the inner side bolt holes 210 of the first carbon ceramic friction body 3, the isolation support body 2 and the second carbon ceramic friction body 4. Thereby connecting and fixing the first carbon ceramic friction body 3, the isolation support body 2 and the second carbon ceramic friction body 4.
In this embodiment, the outer edges of the two sides of the isolation support body 2 are both provided with the second protruding ring 25, the second protruding ring 25 is sleeved outside the outer bolt 52, the second protruding ring 25 is externally connected with the protruding strip 26, the protruding strip 26 is located at the two sides of the isolation support body 2, the protruding strip 26 is located between the first protruding ring 23 and the strip-shaped protruding rib 22, and the length direction of the protruding strip 26 is the same as the diameter direction of the isolation support body 2. The main function of the second raised ring 25 and the raised strips 26 is to increase the contact area to facilitate heat dissipation.
In this embodiment, a plurality of outside connection claws 11 are arranged outside the hub 1, the plurality of outside connection claws 11 are uniformly distributed along the circumferential direction of the hub 1, the isolation support body inner side 24 is provided with a plurality of first connection claws 27, the plurality of first connection claws 27 are uniformly distributed along the circumferential direction of the isolation support body 2, the pressure ring 5 is also provided with a plurality of outside connection claws, and the plurality of outside connection claws are uniformly distributed along the circumferential direction of the pressure ring 5. The outer connecting claws of the press ring 5, the first connecting claws 27 of the isolation support body 2 and the outer connecting claws 11 of the hub 1 are connected in a one-to-one correspondence manner through inner first bolts 53, that is, the inner first bolts 53 connect and fix the press ring 5, the isolation support body 2 and the hub 1, as shown in fig. 3.
In this embodiment, the inside 24 of the isolation support body is further provided with a plurality of second connection claws 28, the plurality of second connection claws 28 are uniformly distributed along the circumferential direction of the isolation support body 2, and the second connection claws 28 and the first connection claws 27 are arranged in a staggered manner. The second coupling claw 28 and the first coupling claw 27 each have a substantially rectangular parallelepiped structure, the first coupling claw 27 has a larger volume than the second coupling claw 28, and the second coupling claw 28 and the first coupling claw 27 are each provided with a through hole for passing a bolt (i.e., the above-described inner bolt hole 210), as shown in fig. 5 and 6.
In this embodiment, a plurality of first inner connecting claws 31 are arranged on an inner side edge of the first carbon ceramic friction body 3 (the first inner connecting claws 31 are arranged in a staggered manner with outer connecting claws of the pressing ring 5), a plurality of second inner connecting claws 41 are arranged on an inner side edge of the second carbon ceramic friction body 4, inner second bolts 54 are arranged on an inner side edge of the isolation support body 2, the inner second bolts 54 sequentially penetrate through the first inner connecting claws 31, the second connecting claws 28 and the second inner connecting claws 41, the inner second bolts 54 connect the first inner connecting claws 31, the second connecting claws 28 and the second inner connecting claws 41 in a one-to-one correspondence manner, and the inner second bolts 54 connect and fix inner sides of the first carbon ceramic friction body 3, the isolation support body 2 and the second carbon ceramic friction body 4.
In this embodiment, the first inner connecting claw 31, the second inner connecting claw 41 and the outer connecting claw 11 are all in a trapezoidal structure, the trapezoidal top end of the first inner connecting claw 31 faces the inner side of the first carbon ceramic friction body 3, the trapezoidal top end of the second inner connecting claw 41 faces the inner side of the second inner connecting claw 41, the trapezoidal shape of the outer connecting claw 11 faces the outer side of the outer connecting claw 11, and the second inner connecting claw 41 and the outer connecting claw 11 form a cross-complementary structure, as shown in fig. 2.
In this embodiment, the thickness ratio of the isolation support body 2, the first carbon ceramic friction body 3, and the second carbon ceramic friction body 4 is 1: 1: 1, the two side surfaces of the isolation support body 2 are configured as mirror images of each other, i.e. the front view and the back view of the isolation support body 2 are mirror images of each other. The first carbon ceramic friction body 3 and the second carbon ceramic friction body 4 are mirror images of each other.
In this embodiment, the insulating ceramic coating is disposed on the two side surfaces of the isolation support body 2 to block heat generated by the first carbon ceramic friction body 3 and the second carbon ceramic friction body. The thickness of the heat insulation ceramic coating is 5 microns to 1000 microns, preferably 300 microns to 500 microns, and good bonding strength and heat resistance can be achieved. The hub 1 and the isolation support body 2 can be made of steel or aluminum-based composite materials or other high-strength high-temperature-resistant materials, the first carbon ceramic friction body 3 and the second carbon ceramic friction body 4 are made of existing carbon ceramic composite materials, and the carbon ceramic composite materials have good wear resistance and high-temperature deformation resistance.
The carbon ceramic wheel-mounted brake disc suitable for the high-speed motor train unit adopts a heat insulation composite structure, so that the service life of the brake disc can be greatly prolonged, and the long-term reliability of the operation of a locomotive is ensured. Compared with the existing brake disc, the weight can be reduced by 30-50%. The device is particularly suitable for motor train unit trains with the speed per hour of more than 350 kilometers.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and the technical scheme all can the independent assortment use.
Claims (11)
1. The utility model provides a carbon pottery axle dress brake disc suitable for high-speed EMUs, a serial communication port, carbon pottery axle dress brake disc suitable for high-speed EMUs includes hub (1), hub (1) external fixation cover is equipped with keeps apart supporter (2), first carbon pottery frictional body (3), second carbon pottery frictional body (4) and clamping ring (5), keep apart supporter (2), first carbon pottery frictional body (3), second carbon pottery frictional body (4) and clamping ring (5) are the ring shape, first carbon pottery frictional body (3), keep apart supporter (2) and second carbon pottery frictional body (4) and stack gradually the setting along the axis direction of hub (1), clamping ring (5) cover is located in first carbon pottery frictional body (3), clamping ring (5) and keep apart supporter (2) range upon range of setting.
2. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 1, wherein a plurality of bolt through holes (21) are formed in the isolation support body (2) along the circumferential direction of the isolation support body (2), bolts (51) are arranged in the bolt through holes (21), and two ends of each bolt (51) are respectively inserted into the first carbon-ceramic friction body (3) and the second carbon-ceramic friction body (4).
3. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 2, wherein the first protruding ring (23) is sleeved outside the bolt through hole (21), the first protruding ring (23) is located on the two side surfaces of the isolation support body (2), the cross section of the middle portion of the bolt (51) is oval, the two ends of the bolt (51) are both of cuboid structures, bolt blind grooves are formed in the surfaces of the first carbon-ceramic friction body (3) and the second carbon-ceramic friction body (4), and the length direction of the bolt blind grooves is the same as the diameter direction of the isolation support body (2).
4. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 2, wherein a plurality of strip-shaped ribs (22) are arranged on the two side surfaces of the isolation support body (2) between two adjacent plug pin through holes (21), and the length direction of the strip-shaped ribs (22) is the same as the diameter direction of the isolation support body (2).
5. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 3, wherein the outer side edges of the isolation support body (2), the first carbon-ceramic friction body (3) and the second carbon-ceramic friction body (4) are provided with outer side bolt holes (29), and the outer side bolts (52) sequentially penetrate through the outer side bolt holes (29) of the first carbon-ceramic friction body (3), the isolation support body (2) and the second carbon-ceramic friction body (4).
6. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 3, wherein the inner side edges of the isolation support body (2), the first carbon-ceramic friction body (3) and the second carbon-ceramic friction body (4) are provided with inner side bolt holes (210), and the inner side second bolts (54) sequentially penetrate through the inner side bolt holes (210) of the first carbon-ceramic friction body (3), the isolation support body (2) and the second carbon-ceramic friction body (4).
7. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 5, wherein the two outer edges of the isolation support body (2) are provided with second protruding rings (25), the second protruding rings (25) are sleeved outside the outer bolts (52), the second protruding rings (25) are externally connected with protruding strips (26), the protruding strips (26) are located on two sides of the isolation support body (2), and the protruding strips (26) are located between the first protruding rings (23) and the strip-shaped protruding ribs (22).
8. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 1, wherein a plurality of outer side connecting claws (11) are arranged outside the hub (1), the outer side connecting claws (11) are uniformly distributed along the circumferential direction of the hub (1), a plurality of first connecting claws (27) are arranged on the inner side of the isolation supporting body (2), and the first connecting claws (27) are connected with the outer side connecting claws (11) in a one-to-one correspondence manner through inner side first bolts (53).
9. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 7, wherein a plurality of second connecting claws (28) are further arranged at the inner side edge of the isolation support body (2), the plurality of second connecting claws (28) are evenly distributed along the circumferential direction of the isolation support body (2), and the second connecting claws (28) and the first connecting claws (27) are arranged in a staggered manner.
10. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 8, wherein a plurality of first inner side connecting claws (31) are arranged on the inner side edge of the first carbon-ceramic friction body (3), a plurality of second inner side connecting claws (41) are arranged on the inner side edge of the second carbon-ceramic friction body (4), an inner side second bolt (54) is arranged on the inner side edge of the isolation supporting body (2), the inner side second bolt (54) sequentially penetrates through the first inner side connecting claws (31), the second connecting claws (28) and the second inner side connecting claws (41), and the volume of the first connecting claws (27) is larger than that of the second connecting claws (28).
11. The carbon-ceramic shaft-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 1, wherein the structures of the two side surfaces of the isolation support body (2) are mirror images of each other, the first carbon-ceramic friction body (3) and the second carbon-ceramic friction body (4) are mirror images of each other, and the two side surfaces of the isolation support body (2) are provided with heat-insulating ceramic coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363478.9U CN209925469U (en) | 2019-03-21 | 2019-03-21 | Carbon pottery axle dress brake disc suitable for high-speed EMUs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363478.9U CN209925469U (en) | 2019-03-21 | 2019-03-21 | Carbon pottery axle dress brake disc suitable for high-speed EMUs |
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| CN209925469U true CN209925469U (en) | 2020-01-10 |
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| CN201920363478.9U Active CN209925469U (en) | 2019-03-21 | 2019-03-21 | Carbon pottery axle dress brake disc suitable for high-speed EMUs |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869423A (en) * | 2019-03-21 | 2019-06-11 | 中国铁道科学研究院集团有限公司 | A kind of carbon pottery axle-mounted brake disk suitable for high-speed EMUs |
| CN111503184A (en) * | 2020-04-22 | 2020-08-07 | 西安航空制动科技有限公司 | Carbon ceramic brake disc for heavy-duty truck |
-
2019
- 2019-03-21 CN CN201920363478.9U patent/CN209925469U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869423A (en) * | 2019-03-21 | 2019-06-11 | 中国铁道科学研究院集团有限公司 | A kind of carbon pottery axle-mounted brake disk suitable for high-speed EMUs |
| CN109869423B (en) * | 2019-03-21 | 2024-07-02 | 中国国家铁路集团有限公司 | Carbon Tao Zhou-mounted brake disc suitable for high-speed motor train unit |
| CN111503184A (en) * | 2020-04-22 | 2020-08-07 | 西安航空制动科技有限公司 | Carbon ceramic brake disc for heavy-duty truck |
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Effective date of registration: 20230915 Address after: 100038 No. 10 Fuxing Road, Haidian District, Beijing Patentee after: China National Railway Group Co.,Ltd. Patentee after: CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Patentee after: BEIJING ZONGHENG ELECTRO-MECHANICAL TECHNOLOGY Co.,Ltd. Patentee after: LOCOMOTIVE & CAR RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Patentee before: CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Patentee before: BEIJING ZONGHENG ELECTRO-MECHANICAL TECHNOLOGY Co.,Ltd. Patentee before: LOCOMOTIVE & CAR RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. |
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