CN215831007U - Brake disc, bogie and rail vehicle - Google Patents
Brake disc, bogie and rail vehicle Download PDFInfo
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- CN215831007U CN215831007U CN202121054950.4U CN202121054950U CN215831007U CN 215831007 U CN215831007 U CN 215831007U CN 202121054950 U CN202121054950 U CN 202121054950U CN 215831007 U CN215831007 U CN 215831007U
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Abstract
The utility model provides a brake disc, a bogie and a rail vehicle. The brake disc comprises a disc body and a disc hub, wherein the inner circumferential surface of the disc body is provided with a disc body connecting piece, and the disc body connecting piece extends towards the center of the disc body; the outer peripheral surface of the disk hub is provided with a disk hub connecting piece corresponding to the disk body connecting piece, and the disk hub connecting piece and the disk body connecting piece are pressed and in interference fit. According to the brake disc provided by the utility model, the connection between the disc body and the disc hub is realized without using a fastener, and the traditional shaft-mounted brake disc connected by a common fastener is replaced, so that the connection reliability and safety are improved, the safety problem caused by the failure of the connection fastener is avoided, the safety risk caused by severe working conditions is reduced, the reliability of the brake disc is improved, and the braking performance of the brake disc is further improved.
Description
Technical Field
The utility model relates to the technical field of railway vehicles, in particular to a brake disc, a bogie and a railway 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 railway vehicle has relatively high connection requirement on the shaft-mounted brake disc due to relatively poor service conditions. However, in the shaft-mounted brake disc in the prior art, the hub and the disc body are generally fastened and connected by the fastening piece, the fastening piece is prone to connection failure in the use process of the shaft-mounted brake disc connected by the fastening piece, the connection failure of the fastening piece is prone to safety risk, and the safety risk is higher when the number of the used fastening pieces is larger, so that the reliability of the shaft-mounted brake disc is reduced, and the braking performance is affected.
SUMMERY OF THE UTILITY MODEL
The brake disc provided by the utility model is reasonable in structure, the use of a fastener is omitted, the connection reliability is improved, and the brake performance is stable and reliable.
An embodiment of the present invention provides a brake disc, including:
the tray body connecting piece is arranged on the inner peripheral surface of the tray body and extends towards the center of the tray body;
the outer peripheral surface of the hub is provided with a hub connecting piece corresponding to the disk connecting piece, and the hub connecting piece and the disk connecting piece are in press fit and interference fit.
According to the brake disc provided by the embodiment of the utility model, the disc body connecting piece comprises a press-fitting bulge; the disk hub connecting piece comprises two oppositely arranged press plates, a press groove is formed by enclosing the press plates and the peripheral surface of the disk hub, and the press protrusions are press-mounted in the press groove through interference fit.
According to the brake disc provided by the embodiment of the utility model, the press-fitting protrusions are provided with the first press-fitting surface and the second press-fitting surface which are opposite, and the first press-fitting surface and the second press-fitting surface are respectively in corresponding interference fit with two opposite side surfaces of the two press-fitting plates.
According to the brake disc provided by the embodiment of the utility model, one side of the press-fitting protrusion, which faces the center of the disc body, is also provided with a third inclined surface and a fourth inclined surface, the third inclined surface and the fourth inclined surface are mutually connected to form a conical protrusion, and the conical protrusion is in clearance fit with the bottom surface of the press-fitting groove.
According to the brake disc provided by the embodiment of the utility model, the disc body comprises two circular end plates and a heat dissipation rib connected between the two circular end plates, the two circular end plates are parallel to each other, and the two circular end plates are coaxially arranged.
According to the brake disc provided by the embodiment of the utility model, the heat dissipation ribs comprise a plurality of inner side heat dissipation ribs close to the inner ring of the circular ring end plate, a plurality of outer side heat dissipation ribs close to the outer ring of the circular ring end plate, and a plurality of middle heat dissipation ribs arranged between the inner side heat dissipation ribs and the outer side heat dissipation ribs, wherein the inner side heat dissipation ribs are uniformly arranged in a ring shape, the outer side heat dissipation ribs are uniformly arranged in a ring shape, and the middle heat dissipation ribs are uniformly arranged in a ring shape.
According to the brake disc provided by the embodiment of the utility model, the cross section of the inner side heat dissipation rib is smaller than that of the middle heat dissipation rib, and the cross section of the middle heat dissipation rib is smaller than that of the outer side heat dissipation rib.
According to the brake disc provided by the embodiment of the utility model, the disc body connecting piece further comprises a fixing rib connected between the two circular end plates, and an integrally formed structure is formed between the fixing rib and the press-fitting protrusion.
The embodiment of the utility model also provides a bogie which comprises the brake disc of the embodiment.
The embodiment of the utility model also provides a railway vehicle, which comprises the brake disc of the embodiment or the bogie of the embodiment.
The brake disc provided by the embodiment of the utility model comprises a disc body and a disc hub, wherein a disc body connecting piece is arranged on the inner circumferential surface of the disc body, and the disc body connecting piece extends towards the center of the disc body; the outer peripheral surface of the disk hub is provided with a disk hub connecting piece corresponding to the disk body connecting piece, and the disk hub connecting piece and the disk body connecting piece are pressed and in interference fit. That is, the disk body carries out interference fit pressure equipment through the disk body connecting piece and the dish hub connecting piece on the dish hub and is in the same place, need not to use the fastener to realize being connected between disk body and the dish hub, replaced the traditional axle dress brake disc that ordinary fastener is connected, not only promoted connection reliability and security, avoided the safety problem because of the connecting fastener inefficacy leads to, reduced the safety risk because of abominable operating mode leads to, promoted the reliability of brake disc moreover, and then improved the brake performance of brake disc.
The bogie provided by the embodiment of the utility model comprises the 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 railway vehicle provided by the embodiment of the utility model comprises the brake disc or the 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 utility model 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 utility model.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a brake disc provided by the present invention;
FIG. 2 is a schematic structural view of the tray of the present invention;
fig. 3 is a schematic structural view of the hub of the present invention.
Reference numerals:
1: a tray body; 101: a circular ring end plate; 102: heat dissipation ribs;
102A: an inner side heat dissipation rib; 102B: an outer heat dissipating rib; 102C: middle heat dissipation ribs;
2: a hub; 3: a disk body connecting piece; 301: pressing the bulges;
301A: a first press-fit face; 301B: a second press-fit face; 301C: a third inclined plane;
301D: a fourth slope; 302: fixing the ribs; 4: a hub connection;
401: pressing and mounting the plate; 401A: a side surface.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, 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" are to 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. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. 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 utility model. 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 will be described below with reference to fig. 1 to 3.
The brake disc comprises a disc body 1 and a disc hub 2, wherein a disc body connecting piece 3 is arranged on the inner circumferential surface of the disc body 1, and the disc body connecting piece 3 extends towards the center direction of the disc body 1. The peripheral surface of the disk hub 2 is provided with a disk hub connecting piece 4 corresponding to the disk body connecting piece 3, and the disk hub connecting piece 4 and the disk body connecting piece 3 are pressed and in interference fit. That is, the disk body connecting piece 3 on the disk body 1 and the disk hub connecting piece 4 on the disk hub 2 are pressed together in an interference fit manner, so that stable and reliable assembling and fixing between the disk body 1 and the disk hub 2 are realized.
When the railway vehicle brakes, the brake pads apply friction torque to the disc body 1, the disc body 1 can transmit the friction torque to the disc hub 2 through an interference press-fitting surface between the disc body connecting piece 3 and the disc hub connecting piece 4, and then the friction torque is transmitted to a wheel shaft of the railway vehicle through the disc hub 2, so that the effective braking of the railway vehicle is realized.
Therefore, the brake disc provided by the embodiment of the utility model is reasonable in structure, the reliable connection between the disc body 1 and the disc hub 2 can be realized through a press fit connection mode between the disc body 1 and the disc hub 2 without using a fastener, and a fastener connection mode adopted by a traditional shaft-mounted brake disc is replaced, so that the connection reliability and safety are improved, the safety problem caused by the failure of the connection fastener is avoided, the safety risk caused by severe working conditions is reduced, the reliability of the brake disc is improved, and the braking performance of the brake disc is further improved.
Specifically, the specific number of the disc body connectors 3 provided on the inner circumferential surface of the disc body 1 and the specific number of the hub connectors 4 provided on the outer circumferential surface of the hub 2 may be set according to actual use requirements. However, a one-to-one correspondence in number between the disc connections 3 and the hub connections 4 should be ensured.
In order to ensure the structural stability and reliability of the press fit between the disc body 1 and the disc hub 2, at least three disc body connecting pieces 3 can be arranged on the inner peripheral surface of the disc body 1, and correspondingly, at least three disc hub connecting pieces 4 which are in one-to-one correspondence with the disc body connecting pieces 3 are arranged on the outer peripheral surface of the disc hub 2, so that the stability and reliability of the whole structure of the brake disc after the press fit of the disc body 1 and the disc hub 2 are improved.
Wherein, each disk body connecting piece 3 is the annular and evenly arranges in the inner peripheral surface of disk body 1, and each hub connecting piece 4 is the annular and evenly arranges in the outer peripheral surface of disk hub 2 to make the atress more even after the pressure equipment between disk body 1 and the disk hub 2, further improved the stability and the reliability of the structure of brake disc.
In some embodiments of the utility model, the disk connector 3 includes press-fitting projections 301. The disk hub connecting piece 4 comprises two oppositely arranged press-fitting plates 401, a press-fitting groove 402 is formed by enclosing between the outer peripheral surfaces of the two press-fitting plates 401 and the disk hub 2, and the press-fitting protrusion 301 is pressed in the press-fitting groove 402 through interference fit so as to realize the interference press-fitting fit between the disk connecting piece 3 and the disk hub connecting piece 4.
Specifically, the press-fitting protrusion 301 is provided with a first press-fitting surface 301A and a second press-fitting surface 301B which are opposite to each other, and the first press-fitting surface 301A and the second press-fitting surface 301B are respectively in corresponding interference fit with two side surfaces 401A of two press-fitting plates 401, so that interference press-fitting between the press-fitting protrusion 301 and the press-fitting groove 402 is realized. When the disc body 1 and the disc hub 2 are used, braking force is transmitted through the interference press-fitting surface between the press-fitting protrusion 301 and the press-fitting groove 402, and external force is borne by the interference press-fitting surface between the press-fitting protrusion 301 and the press-fitting groove 402 under severe working conditions.
Specifically, a third inclined surface 301C and a fourth inclined surface 301D are further arranged on one side of the press-fitting protrusion 301 facing the center of the tray body 1, the third inclined surface 301C and the fourth inclined surface 301D are connected with each other to form a conical protrusion, and the conical protrusion is in clearance fit with the bottom surface of the press-fitting groove 402, so that the interference press-fitting operation of the press-fitting protrusion 301 in the press-fitting groove 402 is facilitated.
Specifically, the hub connection member 4 and the hub 2 are integrally formed by casting, so as to ensure the structural stability and reliability of the hub connection member 4 on the hub 2.
In some embodiments of the present invention, the disk body 1 includes two circular end plates 101 and heat dissipation ribs 102 connected between the two circular end plates 101, the two circular end plates 101 are parallel to each other, and the two circular end plates 101 are coaxially disposed.
The heat dissipation ribs 102 include inner heat dissipation ribs 102A disposed at a plurality of intervals near the inner ring of the ring end plate 101, outer heat dissipation ribs 102B disposed at a plurality of intervals near the outer ring of the ring end plate 101, and middle heat dissipation ribs 102C disposed at a plurality of intervals between the inner heat dissipation ribs 102A and the outer heat dissipation ribs 102B. The plurality of inner side heat dissipation ribs 102A are uniformly arranged in a ring shape, the plurality of outer side heat dissipation ribs 102B are uniformly arranged in a ring shape, and the plurality of middle heat dissipation ribs 102C are uniformly arranged in a ring shape. That is, the inner heat dissipation rib 102A, the middle heat dissipation rib 102C, and the outer heat dissipation rib 102B are arranged in this order from the inside to the outside. Wherein, according to actual demand, middle heat dissipation muscle 102C can be arranged into one or more circles, and when setting up to the multiturn, heat dissipation muscle 102C arranges in proper order from inside to outside in the middle of each circle.
Through set up a plurality of heat dissipation muscle 102 between two ring end plate 101, not only can realize that reliable assembly between two ring end plate 101 is fixed, thereby form integrated into one piece's disk body 1, and be convenient for carry out the heat dissipation ventilation to the brake disc, not only can effectively reduce the temperature of dish hub 2, ensure the interference fit of dish hub 2 and axletree, be convenient for simultaneously increase the brake disc when rotating stir the air, the reinforcing circulation of air, the heat that makes the braking produce is discharged through the clearance acceleration between each heat dissipation muscle 102, the performance of brake disc has further been improved.
Specifically, the cross section of the inner heat dissipation rib 102A is smaller than the cross section of the middle heat dissipation rib 102C, and the cross section of the middle heat dissipation rib 102C is smaller than the cross section of the outer heat dissipation rib 102B, thereby ensuring the structural strength and reliability of the tray body 1.
In some embodiments of the present invention, the disk body connector 3 further includes a fixing rib 302 connected between the two circular end plates 101, and the fixing rib 302 and the press-fitting protrusion 301 are integrally formed, so as to achieve stable and reliable assembling and fixing of the press-fitting protrusion 301 on the inner side of the disk body 1.
In addition, in other embodiments of the present invention, a press-fitting groove with an opening facing the center of the disk body 1 may be further configured on the disk body connecting member 3, and the disk hub connecting member 4 is configured as a press-fitting protrusion, so that the press-fitting protrusion is press-fitted in the press-fitting groove by interference fit, thereby achieving interference press-fitting between the disk body connecting member 3 and the disk hub connecting member 4.
In another aspect, an embodiment of the present invention further provides a bogie, including the brake disc of the above 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 use performance of the bogie is further improved
In still another aspect, the embodiment of the present invention further provides a rail vehicle, including the brake disc of the above embodiment, or including 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 examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A brake disc, comprising:
the tray body connecting piece is arranged on the inner peripheral surface of the tray body and extends towards the center of the tray body;
the outer peripheral surface of the hub is provided with a hub connecting piece corresponding to the disk connecting piece, and the hub connecting piece and the disk connecting piece are in press fit and interference fit.
2. The brake disc of claim 1, wherein the disc body attachment members include press-fit projections; the disk hub connecting piece comprises two oppositely arranged press plates, a press groove is formed by enclosing the press plates and the peripheral surface of the disk hub, and the press protrusions are press-mounted in the press groove through interference fit.
3. The brake disc of claim 2, wherein the press-fitting protrusions are provided with a first press-fitting surface and a second press-fitting surface which are opposite to each other, and the first press-fitting surface and the second press-fitting surface are respectively in corresponding interference fit with two opposite side surfaces of the two press-fitting plates.
4. The brake disc as claimed in claim 2, wherein the press-fitting protrusion is further provided with a third inclined surface and a fourth inclined surface on a side facing the center of the disc body, the third inclined surface and the fourth inclined surface are connected with each other to form a tapered protrusion, and the tapered protrusion is in clearance fit with the bottom surface of the press-fitting groove.
5. Disc according to any of claims 2 to 4, characterized in that it comprises two annular end plates parallel to each other and arranged coaxially, and heat dissipating ribs connected between said two annular end plates.
6. The brake disc of claim 5, wherein the heat dissipating ribs include a plurality of inner side heat dissipating ribs near the inner ring of the ring end plate, a plurality of outer side heat dissipating ribs near the outer ring of the ring end plate, and a plurality of middle heat dissipating ribs disposed between the inner side heat dissipating ribs and the outer side heat dissipating ribs, wherein the plurality of inner side heat dissipating ribs are uniformly arranged in a ring shape, the plurality of outer side heat dissipating ribs are uniformly arranged in a ring shape, and the plurality of middle heat dissipating ribs are uniformly arranged in a ring shape.
7. The brake disc of claim 6, wherein the cross section of the inner heat dissipating ribs is smaller than the cross section of the intermediate heat dissipating ribs, which is smaller than the cross section of the outer heat dissipating ribs.
8. The disc of claim 5, wherein the disc body connecting member further comprises a fixing rib connected between the two annular end plates, and the fixing rib and the press-fitting protrusion are integrally formed.
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 a bogie as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054950.4U CN215831007U (en) | 2021-05-17 | 2021-05-17 | Brake disc, bogie and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054950.4U CN215831007U (en) | 2021-05-17 | 2021-05-17 | Brake disc, bogie and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215831007U true CN215831007U (en) | 2022-02-15 |
Family
ID=80188808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121054950.4U Active CN215831007U (en) | 2021-05-17 | 2021-05-17 | Brake disc, bogie and rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215831007U (en) |
-
2021
- 2021-05-17 CN CN202121054950.4U patent/CN215831007U/en active Active
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