CN209925468U - Carbon pottery wheel dress brake disc and wheel suitable for high-speed EMUs - Google Patents
Carbon pottery wheel dress brake disc and wheel suitable for high-speed EMUs Download PDFInfo
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- CN209925468U CN209925468U CN201920361470.9U CN201920361470U CN209925468U CN 209925468 U CN209925468 U CN 209925468U CN 201920361470 U CN201920361470 U CN 201920361470U CN 209925468 U CN209925468 U CN 209925468U
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Abstract
The utility model discloses a carbon pottery wheel dress brake disc and wheel suitable for high-speed EMUs, carbon pottery wheel dress brake disc suitable for high-speed EMUs includes carbon pottery frictional body (3) and isolation support body (2) that the range upon range of connection is fixed, and the surface that isolation support body (2) faced carbon pottery frictional body (3) is equipped with thermal-insulated ceramic coating; the carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit comprises a plurality of connecting areas along the circumferential direction of the isolation support body (2), and in the connecting areas, the carbon-ceramic friction body (3) and the isolation support body (2) are fixedly connected through a connecting part (4). This carbon pottery wheel dress brake disc suitable for high-speed EMUs has adopted the combined type structure, can lighten the weight of wheel dress brake disc, satisfies under the service strength requirement prerequisite, can bear higher brake temperature to improve the life of brake disc, guaranteed the long-term reliability of high-speed EMUs operation.
Description
Technical Field
The utility model relates to a vehicle braking technical field, specific is a carbon pottery wheel dress brake disc suitable for high-speed EMUs, still one kind contains this carbon pottery wheel dress brake disc's wheel 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.
After a traditional cast steel brake disc is heated, buckling deformation can occur, so that bolts are caused to bear large bending fatigue stress, and further, the risk of bolt fracture can be caused, and the safe operation of a train is influenced.
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 all-carbon ceramic is applied to a high-speed motor train unit, on one hand, the carbon ceramic material is difficult to bear high braking torque, on the other hand, the carbon ceramic material cannot resist the expansion of a bolt caused by heating, so that a brake disc rotates, and the temperature transmitted from a third brake disc to wheels or even axles is high, so that the axle temperature of the vehicle is possibly alarmed, and the safety of the train is further influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the EMUs brake disc thermal load more than 350km/h not enough, alleviate the unsprung mass of train, reduce the deformation of brake disc and for the fracture risk that the bolt brought, reduce to wheel axletree transmission heat, the utility model provides a carbon pottery wheel dress braking and dish wheel suitable for high-speed EMUs, this carbon pottery wheel dress brake disc suitable for high-speed EMUs has adopted the combined type structure, can improve the life of brake disc greatly, has guaranteed the long-term reliability of high-speed EMUs operation.
The utility model provides a technical scheme that its technical problem adopted is: a carbon-ceramic wheel-mounted brake disc suitable for a high-speed motor train unit comprises a carbon-ceramic friction body and an isolation supporting body which are arranged in a stacked mode, wherein the isolation supporting body and the carbon-ceramic friction body are both of annular structures, and a heat insulation ceramic coating is arranged on the surface, facing the carbon-ceramic friction body, of the isolation supporting body; the carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit comprises a plurality of connecting areas along the circumferential direction of the isolation supporting bodies, and the carbon-ceramic friction bodies and the isolation supporting bodies are fixedly connected through the connecting parts in the connecting areas.
In one connecting area, the connecting part comprises two first bolts which sequentially penetrate through the carbon ceramic friction body and the isolation support body, the two first bolts are arranged at intervals along the circumferential direction of the isolation support body, and the isolation support body is in clearance fit with the first bolts.
The inner side surface of the isolation supporting body is provided with a protruding ring which is sleeved outside the first bolt, and a protruding strip which is arranged along the diameter direction of the isolation supporting body is connected outside the protruding ring.
The connecting part also comprises four second bolts penetrating through the carbon ceramic friction body and the isolation supporting body, countersunk through holes for mounting the second bolts are formed in the carbon ceramic friction body, mounting through holes for the second bolts to penetrate through are formed in the isolation supporting body, the four second bolts are located between the two first bolts, and the four second bolts are distributed in an isosceles trapezoid shape.
The pole portion of second bolt contains head section, interlude and the afterbody section that connects gradually, and the head section of second bolt all are located carbon pottery friction body, and the interlude of second bolt is located the isolation support internally, has the clearance between head section and the carbon pottery friction body, and the external diameter of interlude and the aperture hinge system cooperation of the installation through-hole of isolation support, the external diameter of interlude are greater than the external diameter of head section and the external diameter of afterbody section.
Keep apart the inboard surface of supporter and be equipped with bow-shaped arch, along the circumference of keeping apart the supporter, bow-shaped arch is located the both sides of second bolt, and bow-shaped arch contains straight face and arcwall face, and bow-shaped bellied straight face is parallel with the diameter direction who keeps apart the supporter towards the second bolt, bow-shaped bellied straight face.
The connecting part also comprises an inserting pin for connecting the carbon ceramic friction body and the isolation support body, the inserting pin is positioned in the middle of the four second bolts, raised lines are arranged on two sides of the inserting pin along the circumferential direction of the isolation support body, and the raised lines are fixed on the inner side surface of the isolation support body and the inner side surface of the carbon ceramic friction body.
Keep apart the outside surface of supporter and be equipped with many annular radiating grooves, adjacent two between the connection region, the inside surface of keeping apart the supporter is equipped with first bead, and first bead sets up along the diameter direction of keeping apart the supporter.
The first rib and the connecting area are arranged between the first rib and the second rib, the inner side surface of the isolation support body is also provided with the second rib, the second rib is arranged along the diameter direction of the isolation support body, and the middle part of the second rib is provided with an arc-shaped bending section corresponding to the protruding ring.
The utility model provides a wheel suitable for high-speed EMUs, contains including basic disk body, all is equipped with the annular mounting groove in the both sides of basic disk body, all is equipped with foretell carbon pottery wheel dress brake disc that is applicable to high-speed EMUs in every annular mounting groove, and carbon pottery frictional body, isolation supporter, basic disk body, isolation supporter and carbon pottery frictional body are laminated connection in proper order and are fixed.
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 composite structure, so that the service life of the brake disc can be greatly prolonged, and the long-term reliability of the operation of the high-speed motor train unit 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.
4. Reducing the amount of heat transferred to the wheel.
5. The influence of the thermal warping deformation of the brake disc on the bolts is reduced, and the use safety of the brake disc is improved.
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 wheel dress brake disc suitable for high-speed EMUs.
Fig. 2 is a front view of the carbon pottery wheel dress brake disc suitable for high-speed EMUs.
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 sectional view taken along the direction C-C in fig. 2.
Fig. 6 is a front view of the isolation support.
Fig. 7 is a sectional view taken along the direction D-D in fig. 6.
Fig. 8 is a sectional view taken along the direction E-E in fig. 6.
Fig. 9 is a sectional view taken along the direction F-F in fig. 6.
Fig. 10 is a front view of a carbon ceramic friction body.
Fig. 11 is a rear view of a carbon ceramic friction body.
Fig. 12 is a schematic view of a second bolt.
1. A base tray body; 2. isolating the support body; 3. a carbon-ceramic friction body; 4. a connecting member;
11. an annular mounting groove;
21. a raised ring; 22. a raised strip; 23. an arcuate projection; 24. a convex strip; 25. a first rib; 26. a second rib; 27. an annular heat dissipation groove;
41. a first bolt; 42. a second bolt; 43. a plug pin;
421. a head section; 422. a middle section; 423. a tail section.
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.
A carbon-ceramic wheel-mounted brake disc suitable for a high-speed motor train unit comprises a carbon-ceramic friction body 3 and an isolation support body 2 which are arranged in a stacked mode, wherein the isolation support body 2 and the carbon-ceramic friction body 3 are both of an annular structure, and a heat insulation ceramic coating is arranged on the surface, facing the carbon-ceramic friction body 3, of the isolation support body 2; the carbon ceramic wheel-mounted brake disc suitable for the high-speed motor train unit comprises a plurality of connecting areas along the circumferential direction of the isolation support body 2, and in each connecting area, the carbon ceramic friction body 3 and the isolation support body 2 are fixedly connected through a connecting part 4, as shown in fig. 1 to 4.
In the present embodiment, the isolation support body 2 and the carbon ceramic friction body 3 are both sheet-shaped structures, and the axis of the isolation support body 2 coincides with the axis of the carbon ceramic friction body 3, as shown in fig. 3 and 4. When the disc is installed and used, the axis of the isolation support body 2 and the axis of the carbon ceramic friction body 3 coincide with the axis of the base disc body 1.
In the embodiment, the carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit comprises a plurality of connecting areas along the circumferential direction of the isolation support body 2, and the connecting part 4 comprises a part for connecting and fixing the carbon-ceramic friction body 3 and the isolation support body 2 and also comprises a part for connecting and fixing the carbon-ceramic friction body 3, the isolation support body 2 and the base disc body 1 of the wheel. It is understood that the term in this connection region means the region in which the connecting part 4 is located. In this embodiment, the carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit comprises six identical connecting areas.
In this embodiment, in one of the connection regions, the connection member 4 includes two first bolts 41 sequentially passing through the carbon ceramic friction body 3 and the isolation support body 2 (the connection member 4 includes 12 first bolts 41 because of six connection regions), the two first bolts 41 are arranged at intervals along the circumferential direction of the isolation support body 2, and the isolation support body 2 is in clearance fit with the first bolts 41. A through hole for installing the first bolt 41 is formed in the carbon ceramic friction body 3, and a counter bore for installing the first bolt 41 is formed in the isolation supporting body 2. The first bolt 41 is used for connecting and fixing the carbon ceramic friction body 3, the isolation support body 2 and the basic disc body 1 of the wheel.
In this embodiment, the inner side surface of the isolation support body 2 (i.e. the surface of the isolation support body 2 facing the base disc body 1) is provided with a protruding ring 21, the protruding ring 21 is sleeved outside the first bolt 41, the protruding ring 21 is externally connected with a protruding strip 22 arranged along the diameter direction of the isolation support body 2, and when in use, both the protruding ring 21 and the protruding strip 22 are abutted against the base disc body 1, as shown in fig. 6 and 7. The main function of the raised rings 21 and the raised strips 22 is to increase the strength of the support body while increasing the contact area with air to dissipate heat.
In the present embodiment, the connecting member 4 further includes four second bolts 42 penetrating through the carbon ceramic friction body 3 and the isolation support body 2, the four second bolts 42 are located between the two first bolts 41, and the four second bolts 42 are distributed in an isosceles trapezoid shape, as shown in fig. 2. A countersunk through hole for mounting the second bolt 42 is formed in the carbon ceramic friction body 3, and a mounting through hole for the second bolt 42 to pass through is formed in the isolation support body 2, as shown in fig. 10 and 11. The second bolt 42 is used for connecting and fixing the carbon ceramic friction body 3 and the isolation support body 2.
In this embodiment, the rod portion of the second bolt 42 includes a head section 421, an intermediate section 422 and a tail section 423 that are connected in sequence, the head and the head section 421 of the second bolt 42 are both located in the countersunk head through hole of the carbon ceramic friction body 3, the intermediate section 422 of the second bolt 42 is located in the mounting through hole of the isolation support body 2, a gap exists between the head section 421 and the carbon ceramic friction body 3, the outer diameter of the intermediate section 422 is in hinged fit with the mounting through hole of the isolation support body 2, and the outer diameter of the intermediate section 422 is greater than the outer diameter of the head section 421 and the outer diameter of the tail section 423, as shown in fig. 12.
The pole portion of second bolt 42 adopts the design of syllogic, its advantage lies in, because the material of carbon pottery frictional body and isolation support body is different, when the train braking, the deflection of carbon pottery frictional body 3 when the braking friction is heated is less than the deflection of isolation support body 2, the cooperation is twisted with the installation through-hole of isolation support body 2 in second bolt 42 interlude, can drive the bolt along radial outside motion, the deflection of carbon pottery frictional body 3 can be adapted to in the clearance between second bolt 42 and the carbon pottery frictional body 3, under the condition of guaranteeing second bolt 42 axial force, the frictional force that provides can satisfy braking torque, can avoid receiving of second bolt 42 shearing simultaneously, the driving safety of train has been guaranteed.
In this embodiment, the inner side surface of the isolation support body 2 is provided with the arch-shaped protrusion 23, the arch-shaped protrusion 23 is located on both sides of the second bolt 42 along the circumferential direction of the isolation support body 2, the arch-shaped protrusion 23 has a straight surface and an arc surface, the straight surface of the arch-shaped protrusion 23 faces the second bolt 42, the straight surface of the arch-shaped protrusion 23 is parallel to the diameter direction of the isolation support body 2, and preferably, the diameter of the isolation support body 2 is in the straight surface of the arch-shaped protrusion 23. The main function of the arcuate projections 23 is to increase the rigidity of the insulating support 2, to support the friction surface and to increase the contact area with air for heat dissipation.
In this embodiment, the connection part 4 further includes an insertion pin 43 for connecting the carbon ceramic friction body 3, the isolation support body 2 and the base disc body 1, the insertion pin 43 is located in the middle of the four second bolts 42, and the diameter of the middle of the insertion pin 43 is larger than that of the two ends. Along the circumferential direction of the isolation support body 2, two sides of the insertion pin 43 are provided with protruding strips 24, and the protruding strips 24 are fixed on the inner side surface of the isolation support body 2 and the inner side surface of the carbon ceramic friction body 3, as shown in fig. 1 to 8. The function of the inserting pin 43 is to facilitate the installation between the carbon ceramic friction body 3, the isolation support body 2 and the base disc body 1 and to improve the shear resistance of the second bolt 42. The main function of the ribs 24 is to increase the rigidity of the insulating support body 2, to support the friction surface, and to increase the contact area with air to dissipate heat.
In this embodiment, between two adjacent connection regions, the inner side surface of the separation support 2 is provided with a first rib 25, and the first rib 25 is arranged along the diameter direction of the separation support 2, as shown in fig. 6 and 9. Between the first rib 25 and the connection region, the inner side surface of the isolation support body 2 is further provided with a second rib 26, the second rib 26 is arranged along the diameter direction of the isolation support body 2, and the middle part of the second rib 26 is provided with an arc-shaped bending section corresponding to the raised ring 21. The primary purpose of the first ribs 25 and the second ribs 26 is to increase the rigidity of the insulating support 2, to support the friction surface, and to increase the contact area with air to dissipate heat.
In this embodiment, the outer side surface (the surface facing the carbon ceramic friction body 3) of the isolation support body 2 is provided with a plurality of annular heat dissipation grooves 27, the plurality of annular heat dissipation grooves 27 are concentric, and along the axial direction of the isolation support body 2, the surface of the isolation support body 2, which is matched with the carbon ceramic friction body 3, is provided with a heat insulation ceramic coating (i.e., the left side surface of the left isolation support body 2 in fig. 3 is provided with the heat insulation ceramic coating, and the right side surface of the right isolation support body 2 is provided with the heat insulation ceramic coating) so as to prevent the carbon ceramic friction body 3 from conducting heat to the base disk body 1. The thickness of the heat insulation ceramic coating is 5 micrometers to 1000 micrometers, preferably 300 micrometers to 500 micrometers, and the heat insulation ceramic coating can achieve good bonding strength and heat resistance.
In this embodiment, the material of the base disc body 1 may be steel, the material of the isolation support body 2 may be steel, an aluminum-based composite material, a high-strength aluminum alloy, or the like, and the material of the carbon-ceramic friction body 3 is an existing carbon-ceramic composite material, which has better wear resistance and high-temperature deformation resistance. It is preferable that the ratio of the thickness of the carbon ceramic frictional body 3 to the thickness of the separation support body 2 is 0.85 to 1.
The carbon ceramic wheel-mounted brake disc suitable for the high-speed motor train unit adopts a composite structure, so that the service life of the brake disc can be greatly prolonged, and the long-term reliability of the operation of the high-speed motor train unit 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. Reducing the amount of heat transferred to the wheel. The influence of the thermal warping deformation of the brake disc on the bolts is reduced, and the use safety of the brake disc is improved.
The following introduces a wheel suitable for a high-speed motor train unit, and the wheel suitable for the high-speed motor train unit comprises a basic disc body 1, wherein annular mounting grooves 11 are formed in two sides of the basic disc body 1, each annular mounting groove 11 is internally provided with one carbon ceramic wheel-mounted brake disc suitable for the high-speed motor train unit, and a carbon ceramic friction body 3, an isolation support body 2, the basic disc body 1, the isolation support body 2 and the carbon ceramic friction body 3 are sequentially connected and fixed in a stacking mode.
Specifically, the first bolt 41 sequentially penetrates through the left carbon ceramic friction body 3, the left isolation support body 2, the base disc body 1, the right isolation support body 2 and the right carbon ceramic friction body 3, and an axis of the left carbon ceramic friction body 3, an axis of the left isolation support body 2, an axis of the base disc body 1, an axis of the right isolation support body 2 and an axis of the right carbon ceramic friction body 3 coincide with each other.
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 (10)
1. The carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit is characterized by comprising a carbon-ceramic friction body (3) and an isolation support body (2) which are arranged in a stacked mode, wherein the isolation support body (2) and the carbon-ceramic friction body (3) are both of annular structures, and a heat insulation ceramic coating is arranged on the surface, facing the carbon-ceramic friction body (3), of the isolation support body (2); the carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit comprises a plurality of connecting areas along the circumferential direction of the isolation support body (2), and in the connecting areas, the carbon-ceramic friction body (3) and the isolation support body (2) are fixedly connected through a connecting part (4).
2. The carbon-ceramic wheel-mounted brake disc suitable for high-speed motor train units according to claim 1, wherein in one of the connection regions, the connecting member (4) comprises two first bolts (41) sequentially penetrating through the carbon-ceramic friction body (3) and the isolating support body (2), the two first bolts (41) are arranged at intervals along the circumferential direction of the isolating support body (2), and the isolating support body (2) is in clearance fit with the first bolts (41).
3. The carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 2, wherein the inside surface of the isolation support body (2) is provided with a raised ring (21), the raised ring (21) is sleeved outside the first bolt (41), and the raised strip (22) arranged along the diameter direction of the isolation support body (2) is connected outside the raised ring (21).
4. The carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 2, wherein the connecting part (4) further comprises four second bolts (42) penetrating through the carbon-ceramic friction body (3) and the isolation support body (2), countersunk through holes for mounting the second bolts (42) are formed in the carbon-ceramic friction body (3), mounting through holes for the second bolts (42) to penetrate through are formed in the isolation support body (2), the four second bolts (42) are located between the two first bolts (41), and the four second bolts (42) are distributed in an isosceles trapezoid shape.
5. The carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 4, wherein the rod portion of the second bolt (42) comprises a head section (421), a middle section (422) and a tail section (423) which are sequentially connected, the head and head sections (421) of the second bolt (42) are both located in the carbon-ceramic friction body (3), the middle section (422) of the second bolt (42) is located in the isolation support body (2), a gap exists between the head section (421) and the carbon-ceramic friction body (3), the outer diameter of the middle section (422) is in hinged fit with the aperture of the installation through hole of the isolation support body (2), and the outer diameter of the middle section (422) is larger than the outer diameter of the head section (421) and the outer diameter of the tail section (423).
6. The carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit according to claim 4, wherein the isolating support body (2) is provided with an arch-shaped protrusion (23) on the inner side surface, the arch-shaped protrusion (23) is located on two sides of the second bolt (42) along the circumferential direction of the isolating support body (2), the arch-shaped protrusion (23) comprises a straight surface and an arc-shaped surface, the straight surface of the arch-shaped protrusion (23) faces the second bolt (42), and the straight surface of the arch-shaped protrusion (23) is parallel to the diameter direction of the isolating support body (2).
7. The carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 4, wherein the connecting member (4) further comprises an inserting pin (43) for connecting the carbon-ceramic friction body (3) and the isolation support body (2), the inserting pin (43) is located in the middle of the four second bolts (42), and a convex strip (24) is arranged on two sides of the inserting pin (43) along the circumferential direction of the isolation support body (2), and the convex strip (24) is fixed on the inner side surface of the isolation support body (2) and the inner side surface of the carbon-ceramic friction body (3).
8. The carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train unit as claimed in claim 4, wherein the outer side surface of the isolation support body (2) is provided with a plurality of annular heat dissipation grooves (27), and the inner side surface of the isolation support body (2) is provided with a first rib (25) between two adjacent connection areas, wherein the first rib (25) is arranged along the diameter direction of the isolation support body (2).
9. The carbon-ceramic wheel-mounted brake disc suitable for the high-speed motor train units as claimed in claim 8, wherein between the first rib (25) and the connection region, the inner side surface of the isolation support body (2) is further provided with a second rib (26), the second rib (26) is arranged along the diameter direction of the isolation support body (2), and the middle of the second rib (26) is provided with an arc-shaped bent section corresponding to the raised ring (21).
10. The wheel suitable for the high-speed motor train unit comprises a basic disc body (1), annular mounting grooves (11) are formed in two sides of the basic disc body (1), the carbon ceramic wheel-mounted brake disc suitable for the high-speed motor train unit is provided with the carbon ceramic friction bodies (3), the isolation supporting bodies (2), the basic disc body (1), the isolation supporting bodies (2) and the carbon ceramic friction bodies (3) which are sequentially connected in a stacking mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920361470.9U CN209925468U (en) | 2019-03-21 | 2019-03-21 | Carbon pottery wheel dress brake disc and wheel suitable for high-speed EMUs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920361470.9U CN209925468U (en) | 2019-03-21 | 2019-03-21 | Carbon pottery wheel dress brake disc and wheel suitable for high-speed EMUs |
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| CN209925468U true CN209925468U (en) | 2020-01-10 |
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| CN201920361470.9U Active CN209925468U (en) | 2019-03-21 | 2019-03-21 | Carbon pottery wheel dress brake disc and wheel suitable for high-speed EMUs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854643A (en) * | 2019-03-21 | 2019-06-07 | 中国铁道科学研究院集团有限公司 | A kind of carbon potter's wheel suitable for high-speed EMUs is brake disk mounted and wheel |
-
2019
- 2019-03-21 CN CN201920361470.9U patent/CN209925468U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854643A (en) * | 2019-03-21 | 2019-06-07 | 中国铁道科学研究院集团有限公司 | A kind of carbon potter's wheel suitable for high-speed EMUs is brake disk mounted and wheel |
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