CN210822273U

CN210822273U - Bogie and rail vehicle

Info

Publication number: CN210822273U
Application number: CN201921689728.4U
Authority: CN
Inventors: 李余江; 周耀斌; 郭宝建; 刘春洋; 张丽君; 王琳
Original assignee: CRRC Tangshan Co Ltd
Current assignee: CRRC Tangshan Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-23
Anticipated expiration: 2029-10-10

Abstract

The embodiment of the application provides a bogie and rail vehicle, this bogie includes: a frame made of composite material; the frame includes: the truss structure comprises a truss cross beam extending along the transverse direction and truss longitudinal beams extending from the middle of the truss cross beam to two sides along the longitudinal direction; a wheel set; the wheel pair comprises an axle and wheels arranged on the axle; the braking hanging seat is arranged on the framework cross beam; the brake clamp is connected with the brake hanging seat; the braking clamp can clamp two sides of the wheel for braking in a braking state. The bogie and the rail vehicle provided by the embodiment of the application can solve the problem that the traditional bogie vibrates greatly.

Description

Bogie and rail vehicle

Technical Field

The application relates to a rail vehicle walking technology, in particular to a bogie and a rail vehicle.

Background

The rail vehicle is an important traffic tie connecting cities, is gradually a main vehicle in the cities, and is also a main carrier for realizing goods transportation. The rail vehicle mainly includes: the bogie is used for bearing the vehicle body and realizing walking and steering functions.

The conventional bogie mainly includes: the power bogie comprises a framework, wheel pairs, a traction device, a braking device and a buffering device, and further comprises a driving device. The framework is a main framework of the bogie, and many parts of the bogie are fixed with the framework through a metal bogie mounting seat. The conventional frame is an H-shaped frame formed by welding stainless steel materials. Conventional frames are not only heavy, but the rigid connection between the components of the bogie and the frame results in greater vibration of the bogie, which in turn results in less comfort of the rail train.

Disclosure of Invention

The embodiment of the application provides a bogie and a rail vehicle, and the problem that the traditional bogie vibrates greatly can be solved.

An embodiment of a first aspect of the present application provides a bogie, set up in the below of rail vehicle automobile body, the bogie includes:

a frame made of composite material; the frame includes: the truss structure comprises a truss cross beam extending along the transverse direction and truss longitudinal beams extending from the middle of the truss cross beam to two sides along the longitudinal direction;

a wheel set; the wheel pair comprises an axle and wheels arranged on the axle;

the braking hanging seat is arranged on the framework cross beam;

the brake clamp is connected with the brake hanging seat; the braking clamp can clamp two sides of the wheel for braking in a braking state.

The bogie as described above, the frame being of unitary construction comprising: the composite material layer comprises a framework main body made of metal materials and a composite material layer coated outside the framework main body.

The bogie as described above, wherein the frame cross beam and the frame longitudinal beam form a cross-shaped structure;

the height of the end part of the truss longitudinal beam is higher than that of the truss cross beam, the end part of the truss longitudinal beam and the truss cross beam are transited through an inclined part, and the upper surface of the inclined part and the truss cross beam form a preset angle.

The bogie as described above, wherein the thickness of the end of the frame rail is smaller than that of the frame cross beam;

the thickness of the inclined portion gradually increases in a direction from the end of the frame side member toward the frame cross member.

The bogie as described above, the brake spider having a frame connection portion for connection to a frame and a caliper connection portion for connection to a brake caliper; the frame connecting part is provided with a frame connecting surface extending in the vertical direction so as to be assembled with a vertical surface facing the longitudinal direction in the frame beam.

The bogie as described above, further comprising:

one end of the brake mounting insert is embedded in the framework cross beam, and the other end of the brake mounting insert is exposed out of a vertical surface facing to the longitudinal direction in the framework cross beam; the end of the exposed framework beam is provided with a brake mounting structure for connecting with a brake hanging seat.

According to the bogie, the framework connecting part is provided with the framework connecting hole of which the center line is vertical to the framework connecting surface, and the brake mounting structure is provided with the connecting hole matched with the framework connecting hole.

The bogie as described above, the brake caliper comprising:

a hoisting part used for being connected with the brake hoisting seat;

the brake clamping arm is connected with the hoisting part;

and the brake pad is connected to the end part of the brake clamping arm.

The bogie as described above, the clamp connecting part extends in the longitudinal direction, and is provided with a clamp connecting hole of which the center line is parallel to the vertical direction;

and the hoisting part is provided with a hoisting hole matched with the clamp connecting hole.

An embodiment of a second aspect of the present application provides a rail vehicle, including: a bogie as described above.

The technical scheme that this application embodiment provided, through adopting combined material to make the framework, the framework includes the framework crossbeam that extends along the transverse direction and follows the framework longeron that the longitudinal direction extends to both sides respectively along the middle part of framework crossbeam, still adopts the braking hanger setting on the framework crossbeam, and the braking clamp links to each other with the braking hanger, and the braking clamp can press from both sides tight wheel when braking state brake. Compare with the traditional "H" shape framework that adopts the steel sheet to weld, the framework in this embodiment adopts combined material to make, and the framework longeron extends to both sides from the middle part of framework crossbeam moreover, and its quantity reduces half, can reduce weight by a wide margin, is favorable to reducing the weight of bogie, can improve rail vehicle's traction efficiency. And the framework made of the composite material has certain flexibility, and can absorb part of vibration energy through bending deformation so as to reduce the vibration transmitted to the vehicle body and improve the riding comfort.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a bogie provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a frame, a braking device and a wheel set assembly in the bogie provided by the embodiment of the application;

FIG. 3 is a top view of the frame, braking device and wheelset assembly of the truck according to the exemplary embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a frame in a bogie provided in an embodiment of the present application;

FIG. 5 is a schematic top view of a brake hanger in a truck according to an embodiment of the present disclosure;

FIG. 6 is a schematic bottom view of a brake hanger in a truck according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a brake caliper in a bogie according to an embodiment of the present application.

Reference numerals:

100-a framework; 121-a frame beam; 122-truss stringers; 123-brake mounting inserts;

210-a leaf spring set;

300-wheel pair; 311-axle; 312-a wheel;

410-axle boxes;

500-secondary suspension;

600-a traction device;

700-a braking device; 701-braking hanging seat; 7011-a frame connection; 7011 a-framework joint face; 7011 b-frame attachment holes; 7012-clamp connection; 7012 a-clamp attachment hole; 702-brake caliper; 7021-hoisting part; 7021 a-lifting hole; 7022-brake grip arm; 7023-brake pad.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. 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 embodiment provides a bogie, which can be applied to a railway vehicle, wherein the railway vehicle can be a diesel locomotive or an electric locomotive, and can be a motor train unit, a subway, a light rail or a tramcar. The bogie provided by the embodiment is arranged below the body of the railway vehicle and is used for supporting the body and transmitting traction force and braking force to the body.

The longitudinal direction mentioned in this embodiment is a direction parallel to the railway line, the transverse direction is a direction perpendicular to the railway line, and the vertical direction is a vertical direction.

Fig. 1 is a schematic structural diagram of a bogie provided in an embodiment of the present application, fig. 2 is a schematic structural diagram of an assembly of a frame, a braking device and a wheel set in the bogie provided in the embodiment of the present application, and fig. 3 is a top view of the assembly of the frame, the braking device and the wheel set in the bogie provided in the embodiment of the present application. As shown in fig. 1 to 3, the present embodiment provides a bogie including: frame 100, wheel pair 300, traction device 600, brake device 700.

Wherein, framework 100 includes: a frame cross member 121 and a frame longitudinal member 122, wherein the frame cross member 121 extends in a transverse direction and the frame longitudinal member 122 extends in a longitudinal direction. The frame longitudinal beams 122 extend from the middle of the frame cross beam 121 to both sides, respectively, and extend to above the wheel sets 300. The frame 100 is made of a composite material, which may be: carbon fiber composite materials, glass fiber composite materials, or carbon fiber and glass fiber composite materials. The composite material has light weight, and the frame has certain flexibility, and can absorb vibration via bending deformation to improve the buffering effect.

The number of the wheel pairs 300 is two, and the two wheel pairs are respectively arranged on both longitudinal sides of the frame 100. Wheel pair 300 includes: an axle 311 and wheels 312, the axle 311 extending in a lateral direction. The number of wheels 312 is two, and the wheels are symmetrically disposed on the axle 311. The axle 311 is further provided with an axle box 410, and a bearing is arranged in the axle box 410 so as to realize relative rotation with the axle 311 through the bearing. A suspension system may be provided between the axleboxes 410 and the frame 100 to support the frame 100 and to dampen vertical forces between the frame 100 and the axleboxes 410.

The traction device 600 has a top end connected to the vehicle body and a bottom end engaged with the frame cross member 121 for transmitting traction or braking force to the vehicle body.

The braking device 700 includes: a brake spider 701 and a brake caliper 702. Wherein, the brake hanging seat 700 is arranged on the framework beam 121, and the brake clamp 702 is connected with the brake hanging seat 701. The brake caliper 702 is used to clamp the wheels 312 on both sides for braking when in a braking state.

According to the technical scheme, the framework is made of the composite materials, the framework comprises a framework cross beam extending in the transverse direction and a framework longitudinal beam extending from the middle of the framework cross beam to two sides in the longitudinal direction respectively, the braking hanging seat is arranged on the framework cross beam, the braking clamp is connected with the braking hanging seat, and the braking clamp can clamp two sides of a wheel to brake in a braking state. Compare with the traditional "H" shape framework that adopts the steel sheet to weld, the framework in this embodiment adopts combined material to make, and the framework longeron extends to both sides from the middle part of framework crossbeam moreover, and its quantity reduces half, can reduce weight by a wide margin, is favorable to reducing the weight of bogie, can improve rail vehicle's traction efficiency. And the framework made of the composite material has certain flexibility, and can absorb part of vibration energy through bending deformation so as to reduce the vibration transmitted to the vehicle body and improve the riding comfort.

On the basis of the above technical solution, the embodiment provides a specific implementation manner of the framework:

fig. 4 is a schematic structural diagram of a framework in a bogie provided in an embodiment of the present application. As shown in fig. 1 to 4, the frame 100 is a unitary structure including: the composite material layer is coated outside the framework main body. The frame main body can be made of a honeycomb aluminum material, the composite material layer is made of a carbon fiber material, and the frame 100 is a sandwich structure with a honeycomb aluminum rigid structure inside and the carbon fiber material coated outside. When a pulling or squeezing force is applied to a certain portion of the frame 100, it is transferred to the entire carbon fiber material layer, so that the force is more dispersed and the frame is more stable.

From the top view of the bogie, the frame cross member 121 and the frame side members 122 form a cross-shaped structure, and the frame cross member 121 extends in the lateral direction. The frame rails 122 extend in the longitudinal direction, above the wheel sets. The whole framework is in an axisymmetric structure, so that the weight of the two transverse sides and the two sides of the longitudinal beam is uniform, and the stability of the center of gravity is facilitated.

The height of the end part of the truss longitudinal beam 122 is higher than that of the truss cross beam 121, the end part of the truss longitudinal beam 122 and the truss cross beam 121 are transited through an inclined part, and the upper surface of the inclined part and the truss cross beam 121 form a preset angle. Raising the elevation of the end of the frame rail 122 for mounting a suspension between the end of the frame rail 122 and the axle housing 410. The height of the frame cross member 121 is low, which is beneficial to lowering the height of the center of gravity of the vehicle body.

The end of the frame rail 122 is thinner than the frame cross member 121. The thickness of the inclined portion gradually increases in a direction from the end of the frame side member 122 toward the frame cross member 121, that is: the thickness of the inclined portion is thick in the middle and thin at both ends, so that the strength of the center of the frame 100 is high, and the vehicle body can be supported.

For a series of suspension arrangements, a set of leaf springs 210 extending in the transverse direction may be used, with the ends extending above the two axle boxes, respectively, and the middle below the ends of the frame rails 122. The middle part of the plate spring group 210 is pressed downwards by the frame longitudinal beam 122, the two ends of the plate spring group 210 are supported upwards by the axle box, and the plate spring group 210 absorbs vibration energy through self bending deformation for buffering the vertical force between the frame and the axle box.

For the braking device, the embodiment also provides a specific implementation manner:

fig. 5 is a schematic top view, fig. 6 is a schematic bottom view, and fig. 7 is a schematic structural diagram of a brake caliper in a bogie according to an embodiment of the present invention.

As shown in fig. 2, 3, 5, 6, and 7, the braking device 700 includes: a brake spider 701 and a brake caliper 702. The brake hanger 701 is mounted on the frame beam 121, and the brake clamp 702 is connected to the brake hanger 701.

The brake spider 701 has an integrally formed frame attachment portion 7011 and a clamp attachment portion 7012. The frame attachment 7011 is connected to the frame cross member 121 and the clamp attachment 7012 is connected to the brake clamps 702. Specifically, the frame connecting portion 7011 is provided with a frame connecting surface 7011a extending in the vertical direction. The surfaces of the frame rails 121 facing in the longitudinal direction extend in a vertical direction, referred to as a vertical plane. During assembly, the brake hanger 701 is assembled to the frame rail 121 with the frame attachment face 7011a facing in the vertical direction.

The framework beam 121 is embedded with a brake mounting insert 123, the brake mounting insert 123 is a metal part, the bottom end of the brake mounting insert is arranged in the carbon fiber layer, and the top of the brake mounting insert is exposed from the vertical surface. The top of the brake mounting insert 123 exposed from the vertical surface is provided with a brake mounting structure for connecting with the brake hanging seat 701. In this embodiment, the frame attachment portion 7011 is provided with frame attachment holes 7011b, and the center line of the frame attachment holes 7011b is perpendicular to the frame attachment face 7011 a. The number of the frame attachment holes 7011b is four and is distributed at four top corners of the frame attachment face 7011 a. Correspondingly, a connecting hole corresponding to the frame connecting hole 7011b is formed in the top of the brake mounting insert 123, and bolts are respectively passed through the frame connecting hole 7011b and the connecting hole in the brake mounting insert 123 to fix the brake hanging seat 701 on the frame beam 121.

The brake caliper 702 includes: a hoisting part 7021, a brake clamping arm 7022 and a brake pad 7023. The hoisting part 7021 is connected with the brake hoisting seat 701, the brake clamping arm 7022 is connected with the hoisting part 7021, and the brake pad 7023 is installed at the end part of the brake clamping arm 7022.

Specifically, the structures and connection modes of the brake clamping arm 7022 and the brake pad 7023 can be realized by means commonly used in the field.

The hoisting part 7021 is provided with a hoisting hole 7021a, and the center line of the hoisting hole 7021a is parallel to the vertical direction. The number of the hoisting holes 7021a is four, and the specific position thereof can be set according to the structure and the center of gravity of the brake caliper 702. Correspondingly, the clamp connecting portions 7012 extend in the longitudinal direction and are provided with clamp connecting holes 7012a, and the number and positions of the clamp connecting holes 7012a correspond to the hoisting holes 7021 a. Bolts are used to pass through the clamp attachment holes 7012a and the lifting holes 7021a, respectively, to assemble the brake clamps 702 to the brake hangers 701.

The above fig. 5 shows that the brake hanging seat is provided with bolts, and the bolts are not shown in fig. 6.

The braking device provided in this embodiment is only one implementation manner, and those skilled in the art may also make an adaptive modification on the basis of the above contents, or may also implement the braking device in other manners, which is not limited in this embodiment.

The embodiment also provides a railway vehicle, which comprises the bogie. The rail vehicle that this embodiment provided adopts above-mentioned bogie, makes the framework through adopting combined material, and the framework includes the framework crossbeam that extends along the transverse direction and follows the framework longeron that the longitudinal direction extends to both sides respectively along the middle part of framework crossbeam, still adopts the braking hanger seat to set up on the framework crossbeam, and the braking clamp links to each other with the braking hanger seat, and the braking clamp can press from both sides tight wheel when braking state brake. Compare with the traditional "H" shape framework that adopts the steel sheet to weld, the framework in this embodiment adopts combined material to make, and the framework longeron extends to both sides from the middle part of framework crossbeam moreover, and its quantity reduces half, can reduce weight by a wide margin, is favorable to reducing the weight of bogie, can improve rail vehicle's traction efficiency. And the framework made of the composite material has certain flexibility, and can absorb part of vibration energy through bending deformation so as to reduce the vibration transmitted to the vehicle body and improve the riding comfort.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "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 used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A bogie provided below a railway vehicle body, the bogie comprising:

a wheel set; the wheel pair comprises an axle and wheels arranged on the axle;

the braking hanging seat is arranged on the framework cross beam;

2. The truck of claim 1 wherein the frame is a unitary structure comprising: the composite material layer comprises a framework main body made of metal materials and a composite material layer coated outside the framework main body.

3. The bogie according to claim 2, wherein the frame cross beams and frame side beams form a cross-shaped structure;

4. The truck of claim 3 wherein the frame rail ends are of a lesser thickness than the frame cross members;

5. A bogie as claimed in any one of claims 1 to 4 in which the brake spider has a frame connection portion for connection to a frame and a caliper connection portion for connection to a brake caliper; the frame connecting part is provided with a frame connecting surface extending in the vertical direction so as to be assembled with a vertical surface facing the longitudinal direction in the frame beam.

6. The bogie of claim 5, further comprising:

7. The truck of claim 6 wherein the frame attachment portion defines a frame attachment hole having a centerline perpendicular to the frame attachment surface, and the brake mounting structure defines an attachment hole for mating with the frame attachment hole.

8. The truck of claim 5, wherein the brake caliper comprises:

a hoisting part used for being connected with the brake hoisting seat;

the brake clamping arm is connected with the hoisting part;

and the brake pad is connected to the end part of the brake clamping arm.

9. The bogie according to claim 8, wherein the clamp connecting portion extends in a longitudinal direction, and is provided with a clamp connecting hole having a center line parallel to a vertical direction;

10. A rail vehicle, comprising: a bogie as claimed in any one of claims 1 to 9.