CN217081199U - Brake disc, bogie and rail vehicle - Google Patents
Brake disc, bogie and rail vehicle Download PDFInfo
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- CN217081199U CN217081199U CN202120925042.1U CN202120925042U CN217081199U CN 217081199 U CN217081199 U CN 217081199U CN 202120925042 U CN202120925042 U CN 202120925042U CN 217081199 U CN217081199 U CN 217081199U
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Abstract
The utility model provides a brake disc, bogie and rail vehicle. The brake disc comprises a brake disc body and a fastening assembly, wherein the brake disc body comprises two sub disc bodies which are arranged in a split mode, and the two sub disc bodies are spliced with each other to form a disc-shaped structure; the inner ring of each sub-disc body is provided with a disc hub, the axial length of the disc hub is greater than that of the sub-disc body, and the two disc hubs mutually enclose to form an axial inner hole; the fastening components are respectively arranged on two sides of the brake disc body, each fastening component comprises two fastening sleeves which are mutually buckled and connected, and the fastening sleeves are correspondingly sleeved on the outer sides of two ends of each disc hub so as to connect the two sub disc bodies into a whole. The utility model provides a brake disc, it is rational in infrastructure, convenient assembling is convenient for maintain, can ensure that friction torque passes through stable, reliable transmission to axletree of brake disc, and then has improved the brake performance of brake disc.
Description
Technical Field
The utility model relates to a rail transit brake braking technical field especially relates to a brake disc, bogie and rail vehicle.
Background
As a key component of a high-speed train, a brake disc generally includes the following two types: shaft-mounted brake disks and wheel-mounted brake disks.
At present, a shaft-mounted brake disc used for a high-speed train is generally made of metal materials, and has the characteristics of high technical maturity, low cost and wide application speed range, but the problem that the heat of the brake disc cannot be dissipated in time during braking exists, and the friction coefficient of the brake disc is reduced along with the increase of the braking temperature, so that the heat failure occurs, and the braking performance is obviously reduced. And the rise of braking temperature can also make the dish hub inflation, reduces the interference magnitude of dish hub and axletree, has the not hard up risk between dish hub and the axletree, and then influences braking performance.
In addition, the structural style that current high-speed train's axle dress brake disc adopted, mostly links into an organic whole through backup pad with brake disc and dish hub, and when the brake disc temperature rose the back, lead to the bolt not hard up easily, pretension load reduces, makes the bolt bear the shearing force to greatly reduced the connection reliability of bolt and the life of bolt.
SUMMERY OF THE UTILITY MODEL
The utility model provides a brake disc, it is rational in infrastructure, the installation of being convenient for is maintained, and brake performance is stable, reliable.
An embodiment of the utility model provides a brake disc, include:
the brake disc body comprises two sub disc bodies which are arranged in a split mode, and the two sub disc bodies are spliced with each other to form a disc-shaped structure; the inner ring of each sub-disc body is provided with a disc hub, the axial length of each disc hub is greater than that of each sub-disc body, and the two disc hubs mutually enclose to form an axial inner hole;
and the fastening assemblies are respectively arranged on two sides of the brake disc body, each fastening assembly comprises two fastening sleeves which are mutually buckled and connected, and each fastening sleeve is correspondingly sleeved on the outer sides of two ends of each hub so as to connect the two sub-discs into a whole.
According to the utility model provides a brake disc the medial surface of dish hub is equipped with the carborundum layer.
According to the utility model provides a pair of brake disc, each all be equipped with a plurality of radiating grooves that are fan-shaped distribution in the sub-disk body, each the open end of radiating groove all set up in on the outer peripheral face of sub-disk body.
According to the utility model provides a brake disc, the cross-sectional area of radiating groove is from being close to the first end of dish hub is to keeping away from the second end of dish hub increases gradually.
According to the utility model provides a pair of brake disc the both sides of sub-disc body all be equipped with a plurality of louvres of radiating groove one-to-one, each the one end of louvre respectively with each the radiating groove corresponds the intercommunication, each the other end of louvre communicates with outside respectively.
According to the utility model provides a brake disc, each the louvre all set up in be close to on the sub-disc body the position department of dish hub, and set up in a plurality of with one side of brake disc body the louvre is circular arrangement.
According to the utility model provides a brake disc, each the both ends of adapter sleeve all are equipped with engaging lug, two of mutual lock on the adapter sleeve the engaging lug one-to-one sets up, and corresponding two link to each other through the connecting piece between the engaging lug.
According to the brake disc provided by the embodiment of the utility model, each connecting lug is provided with a connecting hole; the connecting piece is a connecting bolt, and the connecting bolt sequentially penetrates through the two corresponding connecting holes to be connected with the connecting nut.
According to the brake disc provided by the embodiment of the utility model, the brake disc body is a carbon ceramic brake disc body; the fastening component is a metal fastening component.
The embodiment of the utility model provides a still provide a bogie, including foretell brake disc.
The embodiment of the utility model provides a still provide a rail vehicle, including foretell brake disc, or including foretell bogie.
The embodiment of the utility model provides a brake disc, including brake disc body and fastening assembly, wherein the brake disc body includes two sub-disc bodies that separate body set up, and two sub-disc bodies are spliced each other and can form the disk structure; the inner rings of the sub-disc bodies are respectively provided with the disc hubs, so that the axial length of the disc hubs is greater than that of the sub-disc bodies, and the two disc hubs are mutually enclosed to form an axial inner hole; the fastening components are arranged on the two sides of the brake disc body respectively, each fastening component comprises two fastening sleeves which are mutually buckled and connected, and the fastening sleeves are correspondingly sleeved on the outer sides of the two ends of each disc hub so as to connect the two sub discs into a whole. Therefore, the utility model provides a brake disc, rational in infrastructure, convenient assembling is convenient for maintain, can carry out the pressure equipment fastening to two sub-discs through two fastening components to make two sub-discs interconnect form the brake disc of an integral structure, ensure that friction torque can pass through the brake disc stable, reliable transmission to axletree, and then improved the brake performance of brake disc.
Further, the utility model provides a brake disc sets up the carborundum layer through the medial surface at the dish hub, when can making dish hub suit on the axletree, further improves friction torque's transmission performance, and then has improved the brake performance of brake disc.
The utility model provides a bogie, including foretell brake disc. Because the bogie is provided with the brake disc, the bogie has all the advantages of the brake disc, and the use performance of the bogie is further improved.
The utility model provides a rail vehicle, including foretell brake disc, or including foretell bogie. As the railway vehicle is provided with the brake disc or the bogie, the railway vehicle has all the advantages of the brake disc or the bogie, and the service performance of the railway vehicle is further improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view structural diagram of a brake disc provided by the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a side view structural diagram of a brake disc provided by the present invention;
FIG. 4 is a sectional view taken along line B-B of FIG. 3;
fig. 5 is an axonometric view of a brake disc provided by the present invention.
Reference numerals:
1: a brake disc body; 101: a sub-tray body; 102: a hub;
103: an axial inner bore; 104: a silicon carbide layer; 105: a heat sink;
106: heat dissipation holes; 2: a fastening assembly; 201: fastening sleeves;
202: and (5) connecting lugs.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Specific embodiments of the brake disc of the present invention are described below with reference to fig. 1 to 5.
The utility model discloses brake disc, including brake disc body 1 and fastening components 2, brake disc body 1 includes the sub-disc body 101 that two components of a whole that can function independently set up, and two sub-disc bodies 101 splice each other and form the disc structure. The inner ring of each sub-disc body 101 is provided with a hub 102, and the two hubs 102 mutually enclose to form an axial inner hole 103, and the inner hole 103 is used for being connected with a wheel shaft in an assembling way.
Wherein the axial length of the hub 102 is greater than that of the sub-disc body 101 so that both ends of the hub 102 can respectively extend out of the left and right end faces of the sub-disc body 101.
Wherein, fastening components 2 are equipped with two, and two fastening components 2 set up respectively in the left and right sides of brake disc body 1, and each fastening component 2 all includes the adapter sleeve 201 that two mutual lock are connected, and each adapter sleeve 201 corresponds the cover and locates the both ends outside of each hub 102 to when making two adapter sleeve 201 lock of matched with connect, two sub-discs 101 can be connected as an organic wholely.
That is, the utility model discloses the brake disc can make two sub-discs 101 interconnect form a whole brake disc through two fastening components 2 to make the assembly connection between two sub-discs 101 more stable, reliable. Because the brake disc body 1 is formed by assembling the two sub-disc bodies 101, the installation without wheel withdrawal can be realized, professional press-fitting equipment is not needed during assembly, and the disassembly and the assembly at any time can be realized.
When the rail vehicle brakes, the brake pads apply friction torque to the brake disc body 1, and the brake disc body 1 can transmit the friction torque to the wheel axle of the rail vehicle through the hub 102, so that the effective braking of the rail vehicle is realized.
Therefore, the utility model provides a brake disc, rational in infrastructure, convenient assembling is convenient for maintain, can effectively improve the whole life and the brake performance of brake disc.
Specifically, a silicon carbide layer 104 is provided on the inner surface of the hub 102. By providing the silicon carbide layer 104, the frictional resistance between the hub 102 and the wheel shaft can be effectively increased.
That is, when the rail vehicle brakes, the brake pads apply a friction torque to the brake disc body 1, and the brake disc body 1 can transmit the friction torque to the wheel axle of the rail vehicle through the silicon carbide layer 104 disposed on the hub 102 under the pressing force of the two fastening assemblies 2, so as to finally realize effective braking of the rail vehicle.
The utility model discloses the brake disc through frictional force transmission moment of torsion, has greatly alleviateed the whole weight of brake disc, has avoided the risk that hub 102 and axletree interference became invalid when the inflation under emergency braking high temperature.
Specifically, the brake disc body 1 is a carbon ceramic brake disc body, that is, each sub disc body 101 is made of carbon ceramic. Compare with traditional metal material's brake disc, because the density of carbon pottery material is about 1/4 ~ 1/3 of metal material, consequently the carbon pottery material brake disc with the volume is littleer than the metal material brake disc thermal capacity, makes from this the utility model discloses a brake disc, high temperature resistant performance is better, and the high temperature decay is still less, and wear resistance and fatigue resistance can be better, have further improved the brake performance of brake disc. In addition, the carbon-ceramic material brake disc is lighter than a metal material brake disc, and the whole weight of the brake disc can be reduced by more than 50%, so that the energy consumption of running and braking of the rail vehicle is effectively reduced, and the operation and maintenance cost of the rail vehicle is greatly saved.
Specifically, the fastening member 2 is a metal fastening member, that is, the fastening member 2 is made of metal. Through fastening components 2 of metal material, can improve structural strength, and then ensure structural stability and reliability after two sub-disk bodies 101 are to the dress.
In some embodiments of the present invention, a plurality of heat dissipation grooves 105 are disposed in each sub-tray body 101, and the opening end of each heat dissipation groove 105 is disposed on the outer peripheral surface of the sub-tray body 101. That is, the sub-discs 101 are radially arranged on the disc body 1.
A plurality of heat dissipation holes 106 corresponding to the heat dissipation grooves 105 one to one are formed in both sides of the sub-disc 101, one end of each heat dissipation hole 106 is correspondingly communicated with each heat dissipation groove 105, and the other end of each heat dissipation hole 106 is communicated with the outside. Through set up a plurality of radiating grooves 105 and a plurality of louvre 106 on brake disc body 1, be convenient for to the brake disc ventilation of dispelling the heat, not only can effectively reduce the temperature of dish hub 102, ensure the interference fit of dish hub 102 and axletree, be convenient for simultaneously increase the brake disc when rotating stir the air, reinforcing circulation of air makes the heat that the braking produced discharge with higher speed, has further improved the whole life and the performance of brake disc.
Wherein, the cross-sectional area of the heat dissipation groove 105 gradually increases from a first end close to the hub 102 to a second end far from the hub 102, so as to maximize the effective heat dissipation area.
Each heat dissipation hole 106 is disposed at a position on the sub disc body 101 close to the hub 102, and the plurality of heat dissipation holes 106 disposed at the same side of the brake disc body 1 are circularly arranged, so as to further improve the heat dissipation effect of the brake disc.
The utility model discloses an in some embodiments, the both ends of each adapter sleeve 201 all are equipped with engaging lug 202, and the engaging lug 202 one-to-one on two adapter sleeves 201 of mutual lock sets up, and links to each other through connecting piece (not shown) between two corresponding engaging lugs 202 to ensure connection stability and reliability between two adapter sleeves 201 of mutual lock, and then ensure two structural stability and the reliability after assembling between the sub-disk 101 to the dress.
Specifically, each of the engaging lugs 202 is provided with an engaging hole. According to the actual use demand, the connecting piece can adopt connecting bolt, and this connecting bolt passes two corresponding connecting holes in proper order and links to each other with coupling nut to the realization is to the fastening connection of two adapter sleeves 201.
It should be understood that the form of the connecting member is not limited to the above-mentioned type, and other forms of connecting member may be adopted as long as a secure fastening connection between the two fastening sleeves 201 can be achieved.
On the other hand, the embodiment of the utility model provides a still provide a bogie, including the brake disc of above-mentioned embodiment. As the bogie is provided with the brake disc of the embodiment, the bogie has all the advantages of the brake disc of the embodiment, and the service performance of the bogie is further improved
In another aspect, the present invention also provides a rail vehicle, including the brake disc of the above embodiment, or the bogie of the above embodiment. Since the railway vehicle is provided with the brake disc of the embodiment or the bogie of the embodiment, the railway vehicle has all the advantages of the brake disc of the embodiment or the bogie of the embodiment, and the service performance of the railway vehicle is further improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A brake disc, comprising:
the brake disc body comprises two sub disc bodies which are arranged in a split mode, and the two sub disc bodies are spliced with each other to form a disc-shaped structure; the inner ring of each sub-disc body is provided with a disc hub, the axial length of each disc hub is greater than that of each sub-disc body, and the two disc hubs mutually enclose to form an axial inner hole;
and the fastening assemblies are respectively arranged on two sides of the brake disc body, each fastening assembly comprises two fastening sleeves which are mutually buckled and connected, and each fastening sleeve is correspondingly sleeved on the outer sides of two ends of each hub so as to connect the two sub-discs into a whole.
2. Brake disc according to claim 1, wherein a silicon carbide layer is provided on the inner side of the hub.
3. The brake disc of claim 1, wherein each of the sub-disc bodies has a plurality of heat dissipation grooves arranged in a fan shape, and an open end of each of the heat dissipation grooves is disposed on an outer circumferential surface of the sub-disc body.
4. The brake disc of claim 3, wherein the cross-sectional area of the heat sink increases from a first end proximate the hub to a second end distal the hub.
5. The disc as claimed in claim 3, wherein a plurality of heat dissipating holes corresponding to the heat dissipating grooves are formed on both sides of the sub-disc body, one end of each heat dissipating hole is communicated with each heat dissipating groove, and the other end of each heat dissipating hole is communicated with the outside.
6. The brake disc of claim 5, wherein each of the heat dissipation holes is disposed on the sub disc body at a position close to the hub, and the plurality of heat dissipation holes disposed on the same side of the brake disc body are arranged in a circle.
7. The brake disc as claimed in any one of claims 1 to 6, wherein both ends of each fastening sleeve are provided with connecting lugs, the connecting lugs on the two fastening sleeves which are fastened with each other are arranged in a one-to-one correspondence manner, and the two corresponding connecting lugs are connected with each other through a connecting piece;
each connecting lug is provided with a connecting hole; the connecting piece is a connecting bolt, and the connecting bolt sequentially penetrates through the two corresponding connecting holes to be connected with the connecting nut.
8. Brake disc according to any of claims 1 to 6, wherein the brake disc body is a carbon ceramic brake disc body; the fastening component is a metal fastening component.
9. A bogie, comprising: a brake disc according to any one of claims 1 to 8.
10. A rail vehicle, comprising: a brake disc as claimed in any one of claims 1 to 8, or comprising: a bogie as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120925042.1U CN217081199U (en) | 2021-04-29 | 2021-04-29 | Brake disc, bogie and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120925042.1U CN217081199U (en) | 2021-04-29 | 2021-04-29 | Brake disc, bogie and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217081199U true CN217081199U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120925042.1U Active CN217081199U (en) | 2021-04-29 | 2021-04-29 | Brake disc, bogie and rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217081199U (en) |
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2021
- 2021-04-29 CN CN202120925042.1U patent/CN217081199U/en active Active
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