CN216467820U - Bogie and railway vehicle - Google Patents
Bogie and railway vehicle Download PDFInfo
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- CN216467820U CN216467820U CN202122479169.8U CN202122479169U CN216467820U CN 216467820 U CN216467820 U CN 216467820U CN 202122479169 U CN202122479169 U CN 202122479169U CN 216467820 U CN216467820 U CN 216467820U
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- bogie
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Abstract
The utility model relates to a bogie and a railway vehicle, which comprise at least two wheel shafts, wherein wheels are arranged at two ends of the wheel shafts, the wheel shafts are rotatably connected with a framework through axle boxes, the framework is positioned at the inner sides of the wheels, a brake disc is arranged in the middle of the wheel shafts, a brake mechanism capable of being matched with the brake disc is arranged on the framework, a suspension damping mechanism is also arranged on the framework, the suspension damping mechanism is connected with a swing bolster mechanism, and the swing bolster mechanism is connected with the framework through a traction pull rod.
Description
Technical Field
The utility model relates to the technical field of railway vehicles, in particular to a bogie and a railway vehicle.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The bogie is one of the most important parts in the structure of the railway vehicle, the conventional bogie mostly adopts an outer side framework, namely a structural form that the framework is positioned on the outer side of a wheel, the volume of the outer side framework is large, and the conventional bogie mostly adopts a steel welding structure, so that the self weight is large. These are disadvantageous in light weight design and improvement of service life of the bogie.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a bogie, which reduces the volume and the weight of the bogie and is beneficial to the light weight design of the bogie.
In order to achieve the purpose, the utility model adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a bogie, including at least two wheel shafts, wheels are mounted at two ends of the wheel shafts, the wheel shafts are rotatably connected to a frame through axle boxes, the frame is located inside the wheels, a brake disc is mounted in the middle of the wheel shafts, a brake mechanism capable of cooperating with the brake disc is mounted on the frame, a suspension damping mechanism is further mounted on the frame, the suspension damping mechanism is connected to a bolster mechanism, and the bolster mechanism is connected to the frame through a traction pull rod.
Optionally, the frame includes a first side beam and a second side beam arranged in parallel, the first side beam is arranged on the inner side of a wheel at one end of the wheel shaft, the second side beam is arranged on the inner side of a wheel at the other end of the wheel shaft, the first side beam and the second side beam are provided with connecting grooves, axle boxes are installed in the connecting grooves, the axle boxes are rotatably connected with the wheel shaft through bearings, a first cross beam and a second cross beam arranged in parallel are further arranged between the first side beam and the second side beam, and the first cross beam and the second cross beam are both provided with a brake mechanism.
Optionally, the first side beam and the second side beam are made of carbon fiber materials.
Optionally, the first cross beam and the second cross beam are made of a metal material.
Optionally, an axle box rubber gasket is arranged between the axle box and the groove surface of the connecting groove.
Optionally, the swing bolster mechanism is arranged in the middle of the framework, the swing bolster mechanism comprises a pillow body, two ends of the pillow body are connected with the suspension damping mechanism arranged on the framework, a center plate is arranged in the middle of the pillow body, and side bearings are arranged at two ends of the pillow body.
Optionally, the pillow body is made of a carbon fiber material.
Optionally, the suspension damping mechanism includes a mounting base, and further includes a spring set and an oil pressure damper which are arranged between the mounting base and the bolster mechanism.
Optionally, the number of the wheel axles is two, the wheel axles are respectively a first wheel axle and a second wheel axle, the bogie further comprises a self-guiding mechanism, the self-guiding mechanism comprises a first pull rod and a second pull rod which are arranged in a crossed manner, one end of the first pull rod is connected with the axle box at one end of the first wheel axle through a spherical hinge, the other end of the first pull rod is connected with the axle box at one end of the second wheel axle through a spherical hinge, one end of the second pull rod is connected with the axle box at the other end of the first wheel axle through a spherical hinge, and the other end of the second pull rod is connected with the axle box at the other end of the second wheel axle through a spherical hinge.
In a second aspect, embodiments of the present invention provide a railway vehicle provided with a bogie as described in the first aspect.
The beneficial effects of the utility model are as follows:
1. according to the bogie, the framework is arranged on the inner side of the wheel, and compared with the traditional bogie, the volume of the framework is reduced, so that the mass of the framework is reduced, the volume and the mass of the whole bogie are reduced, and the lightweight design of the bogie is facilitated.
2. According to the bogie, the first side beam, the second side beam and the bolster body of the bolster mechanism are all made of carbon fiber materials, so that the mass of the framework and the mass of the bolster are greatly reduced, and the mass of the whole bogie is effectively reduced.
3. According to the bogie, the brake disc is arranged in the middle of the wheel shaft, and the number of the brake discs is reduced by adopting a single brake disc, so that the length of the wheel shaft is shortened, the quality of the wheel shaft is effectively reduced, and the light weight of the bogie is facilitated.
4. The bogie is provided with the self-guiding mechanism, so that the self-guiding function and the radial positioning function of a wheel pair consisting of wheels and wheel shafts when passing through a curve are realized, the abrasion of wheel rails is reduced, the service life is prolonged, and the maintenance cost is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a plan view of the whole structure of embodiment 1 of the present invention;
FIG. 2 is a front view of the overall structure of embodiment 1 of the present invention;
FIG. 3 is a schematic view of the assembly of a wheel set and a brake disc in embodiment 1 of the utility model;
FIG. 4 is a schematic structural view of the framework of embodiment 1 of the present invention;
FIG. 5 is a schematic view of an axle box structure according to embodiment 1 of the present invention;
FIG. 6 is a schematic structural view of a rubber pad of an axlebox in embodiment 1 of the utility model;
FIG. 7 is a schematic structural view of a bolster mechanism according to embodiment 1 of the present invention;
FIG. 8 is a schematic structural view of a suspension damping mechanism according to embodiment 1 of the present invention;
FIG. 9 is a schematic structural view of a drag link in embodiment 1 of the present invention;
FIG. 10 is a schematic structural view of a self-steering mechanism according to embodiment 1 of the present invention;
FIG. 11 is a schematic structural view of a brake mechanism according to embodiment 1 of the present invention;
the brake system comprises an axle 1, a wheel 2, a wheel 3, a first side beam, a second side beam 4, a first cross beam 5, a second cross beam 6, an axle box 7, a bearing 8, a bearing rubber pad 9, a bearing rubber pad 10, a brake hanging seat 11, a brake mechanism 12, a brake disc 13, a pillow body 14, a core disc 15, a side bearing 15, a mounting seat 16, a spring group 17, an oil pressure damper 18, a traction pull rod 19, a first pull rod 20 and a second pull rod 21;
11-1 parts of a brake mechanism mounting seat, 11-2 parts of a cylinder and 11-3 parts of a clamp.
Detailed Description
Example 1
The present embodiment provides a bogie for railway vehicles, as shown in fig. 1-2, which comprises wheel sets, a frame, a suspension damping mechanism, a bolster mechanism, a self-steering mechanism, a brake disc, a braking mechanism and the like.
The bogie comprises at least two wheel pairs, in the embodiment, the two wheel pairs are arranged in parallel, as shown in fig. 3, the wheel pairs comprise wheel shafts 1, wheels 2 are fixedly installed at two ends of each wheel shaft, and the wheels 2 can be matched with the guide rails to walk on the guide rails.
The framework is arranged on the inner side of the wheels 2, namely the framework is arranged at the space position among the four wheels 2, the framework part of the traditional bogie is arranged on the outer side of the wheels, and the size is large.
As shown in fig. 4 to 5, the frame includes a first side beam 3 and a second side beam 4 arranged in parallel, and a first cross beam 5 and a second cross beam 6 arranged in parallel are arranged between the first side beam 3 and the second side beam 4.
Further, in order to lighten the weight of the whole bogie, the first side beam 3 and the second side beam 4 are made of carbon fiber materials, and the bogie has certain flexibility and has auxiliary suspension and buffering functions.
Furthermore, the first cross beam 5 and the second cross beam 6 are used for installing the braking mechanism, and the requirement on the structural strength is high, so that the first cross beam 5 and the second cross beam 6 are made of metal materials.
Two end parts of the first side beam 3 and the second side beam 4 are respectively provided with a connecting groove, an axle box 7 is installed in the connecting grooves, the end parts of the same side of the first side beam 3 and the second side beam 4 are rotatably connected with one wheel axle 1 through the axle box 7 and a bearing 8, the other end parts of the first side beam 3 and the second side beam 4 are rotatably connected with the other wheel axle 1 through the axle box 7 and the bearing 8, and therefore the wheel axle 1 and the frame are assembled.
The axle box 7 and the frame may be assembled by a conventional truck axle box and frame assembly method, and will not be described in detail. The bottom of the axle box 7 is provided with a mounting hole for connecting a self-guiding mechanism.
Further, in order to improve the shock resistance of the whole bogie, an axle box rubber gasket 9 is arranged between the top surface of the axle box 7 and the groove surface of the connecting groove. As shown in fig. 6, the bearing rubber pads 9 are provided with mounting holes for connection to the frame.
The middle parts of the first cross beam 5 and the second cross beam 6 are respectively provided with a brake hanging seat 10, the first cross beam 5 is provided with a brake mechanism 11 through the brake hanging seat 10, the second cross beam 6 is provided with a brake mechanism 11 through the brake hanging seat 10, the brake mechanism 11 can be matched with a brake disc 12 arranged in the middle of the wheel shaft 1 to brake the brake disc 12, and then the whole bogie is braked.
In the embodiment, only one brake disc 12 is arranged in the middle of the wheel shaft 1, so that the length of the wheel shaft 1 is reduced, the mass of the wheel shaft 1 is further reduced, and the lightweight design of the bogie is realized.
As shown in fig. 7, the bolster mechanism includes a pillow body 13, the pillow body 13 is disposed at a middle position of the frame, that is, between the first cross member 5 and the second cross member 6, and the first cross member 5 and the second cross member 6 are symmetrically disposed with respect to a center line of the pillow body 13.
The center position of the pillow body 13 is provided with a core plate 14, the core plate 14 is a metal core plate, and two end parts of the pillow body 13 are provided with side bearings 15.
Further, in order to reduce the weight of the bolster mechanism, the pillow body 13 is made of a carbon fiber material and is designed to be of a middle closed section structure.
One end part of the pillow body 13 is connected with a suspension damping mechanism arranged at a concave part in the middle of the first side beam 3, and the other end part of the pillow body 13 is connected with a suspension damping mechanism arranged at a concave part in the middle of the second side beam 4.
The suspension damping mechanisms mounted on the first side beam 3 and the second side beam 4 have the same structure, and the suspension damping mechanism mounted on the first side beam 3 is taken as an example for explanation: as shown in fig. 8, the suspension damping mechanism includes a mounting base 16, the mounting base 16 is fixed to the first side beam 3, and a spring group 17 and an oil damper 18 are disposed between the mounting base 16 and the pillow body 13.
The spring set 17 includes a plurality of springs, and in this embodiment, the number of the springs is four, and it can be understood that a person skilled in the art can set the number of the springs in the spring set 17 according to actual needs, and one end of each spring is fixed to the mounting seat 16, and the other end of each spring is fixed to the pillow body 13.
The hydraulic damper 18 may be a conventional hydraulic damper, and the specific structure thereof will not be described in detail herein, the bottom end of the hydraulic damper 18 is mounted on the support of the mounting seat 16, and the top end of the hydraulic damper 18 is fixedly connected to the pillow body 13 by a bolt.
A traction pull rod 19 is arranged between the pillow body 13 and the framework and used for transmitting traction force. As shown in fig. 9, the traction rod includes a rod body, and both ends of the rod body are provided with spherical hinges.
In this embodiment, the pillow body 13 is connected to two traction pull rods 19, one end of one traction pull rod 19 is connected to one end of the pillow body 13 through a ball hinge, the other end of the traction pull rod is connected to the first side beam 3 through a ball hinge, one end of the other traction pull rod 19 is connected to the other end of the pillow body 13 through a ball hinge, and the other end of the traction pull rod is connected to the second side beam 4 through a ball hinge.
In this embodiment, two traction rods 19 are located on either side of the centerline of the pillow body 13.
Further, in order to reduce the wear of the wheel pair to the wheel rail when the wheel pair passes through a curve, the bogie further comprises a self-guiding mechanism, and two wheel shafts 1 are defined as a first wheel shaft and a second wheel shaft respectively.
As shown in fig. 10, the self-steering mechanism includes a first pull rod 20 and a second pull rod 21 that are arranged in a crossing manner, one end of the first pull rod 20 is connected to the axle box 7 at one end of the first axle through a spherical hinge, the other end of the first pull rod is connected to the axle box 7 at one end of the second axle through a spherical hinge, one end of the second pull rod 21 is connected to the axle box 7 at the other end of the first axle through a spherical hinge, and the other end of the second pull rod is connected to the axle box 7 at the other end of the second axle through a spherical hinge.
Through setting up self-steering mechanism, realized the self-steering function and the radial positioning function when the wheel pair passes through the curve, reduced the wheel rail wearing and tearing, prolonged life, reduced the maintenance cost.
As shown in fig. 11, the brake mechanism 11 may be a conventional brake mechanism for a bogie, and includes a brake mechanism mounting seat 11-1, a cylinder 11-2, a clamp 11-3, a lever, a clamp holder, and the like, and the specific structure of the brake mechanism 11 is not described in detail herein, the brake mechanism 11 is mounted at the bottom of the brake hanger 10 through the brake mechanism mounting seat 11-1, and the cylinder 11-2 can drive the clamp 11-3 to move through the lever, thereby clamping or releasing the brake disc 12 to perform braking and releasing.
According to the bogie of the embodiment, the single brake disc and the wheel pair with built-in bearings are adopted, so that the number of the brake discs is reduced, the length of a wheel shaft is shortened, and the quality of the wheel pair is effectively reduced; the framework positioned on the inner side of the wheel and the side beam made of the carbon fiber material are adopted, so that the quality of the framework is greatly reduced; the swing bolster made of the carbon fiber material is adopted, so that the quality of the swing bolster is greatly reduced; therefore, the quality of the whole bogie is effectively reduced, the light weight design of the bogie is facilitated, and the service life of the bogie is prolonged.
Example 2:
in the present embodiment, a railway vehicle is provided with the bogie described in embodiment 1, and other structures of the railway vehicle may be conventional structures, which will not be described in detail herein.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. The utility model provides a bogie, includes two at least shaft, and the wheel is installed at the shaft both ends, the shaft passes through the axle box and rotates with the framework to be connected, its characterized in that, the framework is located the wheel inboard, and the mid-mounting of shaft has the brake disc, and the framework is installed can with brake disc complex arrestment mechanism, and the framework is still installed and is hung damping mechanism, hangs damping mechanism and is connected with the bolster mechanism, and the bolster mechanism passes through the traction pull rod and is connected with the framework.
2. The bogie according to claim 1, wherein the frame comprises a first side beam and a second side beam arranged in parallel, the first side beam is arranged on the inner side of the wheel at one end of the wheel shaft, the second side beam is arranged on the inner side of the wheel at the other end of the wheel shaft, the first side beam and the second side beam are provided with connecting grooves, axle boxes are arranged in the connecting grooves, the axle boxes are rotatably connected with the wheel shaft through bearings, a first cross beam and a second cross beam arranged in parallel are further arranged between the first side beam and the second side beam, and the first cross beam and the second cross beam are both provided with brake mechanisms.
3. A bogie as claimed in claim 2, wherein the first and second side beams are formed of carbon fibre.
4. A bogie as claimed in claim 2 wherein the first and second beams are formed from a metallic material.
5. A bogie as claimed in claim 2, in which journal box rubber pads are provided between the journal boxes and the slot faces of the attachment slots.
6. The bogie of claim 1, wherein the bolster mechanism is disposed at a middle position of the frame, the bolster mechanism comprises a pillow body, two ends of the pillow body are connected with the suspension damping mechanism mounted on the frame, a center plate is disposed at the middle of the pillow body, and side bearings are disposed at two ends of the pillow body.
7. A bogie as claimed in claim 6 in which the pillow body is formed from carbon fibre material.
8. A bogie as claimed in claim 1 in which the suspension damping means comprises a mounting block and further comprising a spring pack and oleo damper disposed between the mounting block and the bolster mechanism.
9. The bogie according to claim 1, wherein the two axles are a first axle and a second axle, and the bogie further comprises a self-steering mechanism, wherein the self-steering mechanism comprises a first pull rod and a second pull rod which are arranged in a crossed manner, one end of the first pull rod is connected with the axle box at one end of the first axle through a spherical hinge, the other end of the first pull rod is connected with the axle box at one end of the second axle through a spherical hinge, one end of the second pull rod is connected with the axle box at the other end of the first axle through a spherical hinge, and the other end of the second pull rod is connected with the axle box at the other end of the second axle through a spherical hinge.
10. A railway vehicle, characterized in that a bogie as claimed in any one of claims 1 to 9 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122479169.8U CN216467820U (en) | 2021-10-14 | 2021-10-14 | Bogie and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122479169.8U CN216467820U (en) | 2021-10-14 | 2021-10-14 | Bogie and railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216467820U true CN216467820U (en) | 2022-05-10 |
Family
ID=81441484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122479169.8U Active CN216467820U (en) | 2021-10-14 | 2021-10-14 | Bogie and railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216467820U (en) |
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2021
- 2021-10-14 CN CN202122479169.8U patent/CN216467820U/en active Active
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