CN217124799U

CN217124799U - Bogie, railway vehicle, track beam and straddle type track system

Info

Publication number: CN217124799U
Application number: CN202220456558.0U
Authority: CN
Inventors: 杨春; 刘俊杰; 张安庆; 夏文艳
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-08-05
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a bogie, rail vehicle, track roof beam and straddle formula track system, bogie include support frame, installation axle, two rubber tyers and steel wheel, installation hub connection to support frame, and two rubber tyers and steel wheel all overlap and establish to the installation axle, and the rubber tyer is used for contacting with the rubber tyer walking face, and the steel wheel is used for contacting with the steel tyer walking face, and the steel wheel is located between two rubber tyers, and the radius of steel wheel is less than the radius of rubber tyer. According to the utility model discloses, rubber tyer and steel wheel have been combined to through laying the variable roof beam of isostructure, realize rail vehicle to the control of the use of steel wheel and rubber tyer, freely switch in single double round system, with the demand that satisfies various highway sections.

Description

Bogie, railway vehicle, track beam and straddle type track system

Technical Field

The utility model relates to a straddle type track field particularly relates to a bogie, rail vehicle, track roof beam and straddle type track system.

Background

The wheel rail system that general straddle type monorail adopted is suitable for the scene singlely, because the rubber material of rubber tyer can't be high-speed when the heavy load moves, the rubber tyer system can only be used for urban environment, and the steel wheel system is high although intensity is but the noise is also high, is not suitable for the regional long-term practicality in city.

Accordingly, there is a need for a bogie, a railway vehicle, a track beam and a straddle type track system that at least partially address the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

To at least partially solve the above problems, an aspect of the present invention provides a bogie including:

a support frame;

a mounting shaft connected to the support frame;

the two rubber wheels are sleeved on the mounting shaft and are used for being in contact with a rubber wheel walking surface; and

the steel wheel, the steel wheel cover is established extremely the installation axle to be located between two rubber tyers, the radius of steel wheel is less than the radius of rubber tyer, the steel wheel with two rubber tyer coaxial arrangement, the steel wheel is used for contacting with the steel wheel walking face.

Optionally, two sides of the support frame are respectively provided with two beam embracing wheels, and the beam embracing wheels are rotatably mounted on the support frame around a beam embracing wheel rotation axis.

Optionally, a driving motor is arranged on one side of the supporting frame, and the driving motor is connected with the mounting shaft to drive the rubber wheel and the steel wheel to rotate.

Optionally, the support frame includes the base, the base is used for bearing driving motor, the both sides of support frame are equipped with two linking arms respectively, it is connected to embrace the roof beam wheel, it is used for contacting with the side of track roof beam to embrace the roof beam wheel.

Optionally, the outer circumferential surface of the steel wheel comprises an arcuate face which is inwardly concave in the radial direction.

Optionally, the steel wheel and the rubber wheel are fixedly connected together through a pin shaft.

According to another aspect of the present invention, there is provided a rail vehicle, including the bogie.

According to another aspect of the utility model, a track roof beam is provided for rail vehicle, include:

a variable beam, the top surface of which comprises two rubber wheel walking surfaces configured to be a plane and a steel wheel walking surface at least partially configured to be a curved surface, the steel wheel walking surface is positioned between the two rubber wheel walking surfaces and protrudes upwards from the rubber wheel walking surfaces, and

the variable beam comprises a first track section and a second track section, the distance between the steel wheel walking surface and the two rubber wheel walking surfaces which are protruded from the first track section is larger than the difference value between the radius of the rubber wheels and the radius of the steel wheels, so that the steel wheels are in contact with the steel wheel walking surfaces,

in the second track section, the distance of the steel wheel walking surface protruding out of the two rubber wheel walking surfaces is smaller than the difference value between the radius of the rubber wheel and the radius of the steel wheel, so that the rubber wheel is in contact with the rubber wheel walking surface; and

a foundation beam to which the variable beam is detachably connected.

Optionally, the foundation beam comprises:

a top surface for supporting the variable beam; and

the first side face is connected with the top face and extends downwards from the top face in an inclined mode and is used for being contacted with the beam embracing wheel, and the first side face is parallel to the rotating axis of the beam embracing wheel.

Optionally, the foundation beam further includes a second side surface, the second side surface is connected to the first side surface and extends downward from the first side surface, and the second side surface is perpendicular to the top surface.

The utility model also provides a straddle type track system, include:

the rail vehicle; and

the track beam;

wherein, in the first track section, the steel wheel is contacted with the steel wheel running surface, the rubber wheel is separated from the rubber wheel running surface,

and in the second track section, the rubber wheel is in contact with the rubber wheel traveling surface, and the steel wheel is separated from the steel wheel traveling surface.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.

In the drawings:

fig. 1 is a perspective view of a bogie according to a preferred embodiment of the present invention placed on a track beam;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front cross-sectional view of FIG. 1;

FIG. 4 is a cross-sectional view of an embodiment of a deformable beam;

FIG. 5 is a cross-sectional view of another embodiment of a deformable beam;

FIG. 6 is a cross-sectional view of one embodiment of a foundation beam;

FIG. 7 is a schematic top view of a steel wheel and a rubber wheel; and

fig. 8 is a cross-sectional view of fig. 7.

Description of reference numerals:

100: straddle-type track system 110: track beam

111: the foundation beam 112: variable beam

113: top surface 114: first side surface

115: steel wheel tread 116: rubber wheel walking surface

117: second side 120: steering frame

121: the support frame 122: rubber wheel

123: steel wheel 124: beam holding wheel

125: mounting shaft 126: driving motor

127: rim 128: base seat

129: connecting arm 130: pin shaft

140: rail vehicle

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In the following description, a detailed description will be given for a thorough understanding of the present invention. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal words such as "first" and "second" are referred to in this application as labels only, and do not have any other meanings, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for purposes of illustration only and are not limiting.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings.

Referring to fig. 3, the bogie 120 includes a support frame 121, a mounting axle 125, and a steel wheel 123 and two rubber wheels 122. The steel wheel 123 is located between the two rubber wheels 122, and the two rubber wheels 122 and the steel wheel 123 are both sleeved on the mounting shaft 125 and are mounted on the bogie 120 through the mounting shaft 125. The steel wheel 123 is placed on the steel wheel running surface 115, and the rubber wheel 122 is placed on the rubber wheel running surface 116. The radius of the steel wheel 123 is slightly smaller than the radius of the two rubber wheels 122.

In this way, the use of steel wheels 123 greatly increases the load bearing capacity and durability of the wheel sets of the bogie 120, which can be used in high speed driving situations with high loads. Because the rubber wheel 122 and the steel wheel 123 are respectively arranged on different walking surfaces, when the rubber wheel walking surface 115 and the rubber wheel walking surface 116 face different, the rubber wheel 122 and the steel wheel 123 can be allocated to be used independently by the rubber wheel 122, the steel wheel 123 or the combination of the rubber wheel 122 and the steel wheel 123, and can be freely switched between a single-wheel system and a double-wheel system.

Referring to fig. 1 to 3, each bogie 120 includes 4 embrace wheels 124, and is rotatable about an axis of rotation AX of the embrace wheels 124. In this way, the four embrace wheels 124 clamp the base beam 111 and move on the sides of the track beam, so that the bogie 120 does not roll over when walking on the variable beam 112, maintaining the horizontal balance of the bogie 120.

With continued reference to fig. 1 and 3, the support frame 121 includes a base 128 and four connecting arms 129. The base 128 is used for carrying a driving motor 126 arranged at one side of the supporting frame 121, and an output shaft (not shown) of the driving motor 126 is connected with the mounting shaft 125. Two connecting arms 129 are respectively arranged on two sides of the supporting frame 121, and each connecting arm 129 is connected with one beam holding wheel 124.

In this way, the four symmetrical link arms 129 maintain the balance of the bogie 120, and the drive motor 126 rotates the mounting shaft 125, thereby rotating the rubber wheel 122 and the steel wheel 123 coaxially.

Referring to fig. 7 and 8, the outer circumferential surface of the steel wheel 123 includes an arc-shaped surface depressed inward in a radial direction so that the steel wheel 123 can be more stably engaged with the steel wheel tread surface 115 of the variable beam 112. Referring to fig. 8, the rubber wheel 122 also has a rim 127. The steel wheel 123 and the rubber wheel 122 are connected by a pin 130. In this way, the strength of the rubber wheel 122 is enhanced, and the risk that the rubber wheel 122 is deformed and damaged under high-speed carrying of high load is reduced. Meanwhile, the separation of the steel wheel 123 and the rubber wheel 122 is avoided through the action of the pin shaft 130

According to another aspect of the present invention, a rail vehicle 140 is provided, the rail vehicle 140 comprising a bogie 120.

As can be seen in fig. 3, the track beam 110 comprises a variable beam 112 and a base beam 111, and the variable beam 112 is detachably connected to the base beam 111, for example by means of a bolt connection. The top surface of the variable beam 112 includes two rubber wheel running surfaces 116 configured as a plane and a steel wheel running surface 115 configured at least partially as a curved surface, the steel wheel running surface 115 being located between the two rubber wheel running surfaces 116 and protruding upward from the rubber wheel running surfaces 116.

Further, as can be seen in fig. 6, the foundation beam 111 comprises a top surface 113 and two first side surfaces 114. Wherein the top surface 113 is used to support the variable beam 112. The base beam 111 further has 2 side surfaces, wherein a first side surface 114 is connected to the top surface 113 and extends obliquely downward from the top surface 113, and the first side surface 114 is used for contacting the beam holding wheel 124. The first side 114 is parallel to the rotational axis AX of the bridge wheel 124.

Further, the base beam 111 further includes a second side 115, and the second side 115 is connected to the first side 114 and extends downward from the first side 114. In the illustrated embodiment, the second side 115 is perpendicular to the top 113.

Alternatively, the material of the foundation beam 111 is concrete, and the material of the variable beam 112 is metal. In this way, the foundation beam 111 can stably carry the variable beam 112 while saving a volume. In addition, the foundation beam 111 is disposed on a pier stud (not shown), and such structure and material ensure the strength of the beam body while also saving costs.

The utility model also provides a straddle formula track system 100, including rail vehicle 140 and track roof beam 110.

Referring to fig. 3, the distance that the steel wheel running surface 115 protrudes from the running surfaces of the two rubber wheels 122 is greater than, equal to or less than the difference between the radius of the rubber wheels 122 and the radius of the steel wheel 123. The variable beam 112 includes at least a first track segment (not shown) and a second track segment (not shown), and the variable beam 112 of the first track segment and the second track segment have different structures, so that the stress mode of the steel wheel 123 and the rubber wheel 122 can be controlled.

For the first track segment, the height of the projection of the variable beam 112 shown in fig. 5 is greater than the difference between the radii of the steel wheel 123 and the rubber wheel 122, so that the steel wheel 123 is used as the only stressed wheel, and the rubber wheel 122 is not in contact with the rubber wheel tread 116, so that the suburban road segment is suitable, unnecessary wear of the rubber wheel 122 is reduced, and the faster-speed road segment is also suitable.

For the second track segment, the height of the projection of the variable beam 112 shown in fig. 4 is less than the difference in the radii of the steel wheel 123 and the rubber wheel 122, whereby the rubber wheel 122 acts as the sole stressed wheel and the steel wheel 123 is not in contact with the steel wheel tread 115. The steel wheel is suitable for urban road sections, main carrying is completed by the rubber wheel 122, and noise of the steel wheel 123 in carrying is avoided.

Different from the variable beam 112 which is a single-wheel system, the projection height of the variable beam 112 is also in a condition between the two, the rubber wheel 122 and the steel wheel 123 are respectively in contact with the rubber wheel traveling surface 116 and the steel wheel traveling surface 115, and the rubber wheel 122 and the steel wheel 123 are stressed, namely, the double-wheel system. Here, the amount of radial deformation of the rubber wheel 122 in a load situation needs to be considered.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A bogie, characterized in that the bogie comprises:

a support frame;

a mounting shaft connected to the support frame;

2. The bogie according to claim 1, wherein two embrace beam wheels are provided on either side of the support frame, the embrace beam wheels being rotatably mounted to the support frame about an embrace beam wheel rotation axis.

3. The bogie of claim 2, wherein a drive motor is provided on one side of the support frame, and the drive motor is connected to the mounting shaft to drive the rubber wheel and the steel wheel to rotate.

4. The bogie according to claim 3, wherein the supporting frame comprises a base, the base is used for bearing the driving motor, two connecting arms are respectively arranged on two sides of the supporting frame, the beam embracing wheel is connected to the connecting arms, and the beam embracing wheel is used for contacting with the side face of the track beam.

5. The bogie according to claim 1, wherein the outer circumferential surface of the steel wheel comprises an arc-shaped face inwardly depressed in a radial direction.

6. The bogie of claim 1, wherein the steel wheel and the rubber wheel are fixedly connected together by a pin.

7. A rail vehicle, characterized in that it comprises a bogie according to any one of claims 1 to 6.

8. A rail beam for a rail vehicle according to claim 7, comprising:

a variable beam, the top surface of which comprises two rubber wheel running surfaces configured as planes and a steel wheel running surface at least partially configured as a curved surface, the steel wheel running surface is positioned between the two rubber wheel running surfaces and protrudes upwards from the rubber wheel running surfaces along the extension direction of the track beam, and

a foundation beam to which the variable beam is detachably connected.

9. The track beam of claim 8, wherein the foundation beam comprises:

a top surface for supporting the variable beam; and

10. The track beam of claim 9, wherein the foundation beam further includes a second side surface connected to and extending downwardly from the first side surface, the second side surface being perpendicular to the top surface.

11. A straddle-type track system, comprising:

the rail vehicle according to claim 7; and

the track beam according to any one of claims 8 to 10;