Bogie and straddle-type monorail vehicle having the same

Abstract

The present invention discloses a bogie and a straddle-type monorail vehicle having the same. The bogie includes: a bogie frame having an installation space that is open up and down, and running wheels are arranged in the installation space; a driving and braking device that is arranged on the right side of the bogie frame and can drive the running wheels to rotate and brake the running wheels; hourglass spring devices are arranged on both the left side and the right side of the bogie frame; the distance between the hourglass spring device on the right side and the center line of the running wheel is D1, and the distance between the hourglass spring device on the left side and the center line of the running wheel is D2, and D1 < D2, wherein the center line extends in the front-rear direction and passes through the center point of the running wheel. This bogie has the advantage of high balance.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and particularly to a bogie and a straddle monorail vehicle having the same. Background Art

[0002] A straddle monorail vehicle is a commonly used means of transportation. A bogie is usually provided at the bottom of the straddle monorail vehicle. A running wheel is provided in the bogie. It can be understood that when the running wheel rotates, the straddle monorail vehicle can move along the track.

[0003] Here, it is assumed that the straddle monorail vehicle moves in the front-rear direction. In practice, due to the need to arrange driving and braking devices (including a driving device and a foundation braking device), this will cause the bogie to be asymmetrical left and right, and the center of gravity will be biased towards the driving and braking devices, for example, the left side or the right side. It can be understood that this will cause uneven load bearing of the running wheels and eccentric wear, shortening the service life and replacement cycle of the running wheels, and will be unfavorable for the driving safety of the straddle monorail vehicle. Summary of the Invention

[0004] In view of this, the main object of the present invention is to provide a bogie and a straddle monorail vehicle having the same.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows: A bogie includes: a bogie frame, the bogie frame has an installation space that is open up and down, and a running wheel is provided in the installation space, and the running wheel can drive the bogie to move in the front-rear direction; a driving and braking device, the driving and braking device is provided on the right side of the bogie frame and can drive the running wheel to rotate; hourglass spring devices are provided on both the left side and the right side of the bogie frame; the distance between the hourglass spring device on the right side and the center line of the running wheel is D1, and the distance between the hourglass spring device on the left side and the center line of the running wheel is D2, D1 < D2, wherein the center line extends in the front-rear direction and passes through the center point of the running wheel.

[0006] As an improvement of an embodiment of the present invention, the hourglass spring device on the right side includes two hourglass springs. Among them, one hourglass spring is provided at the front end of the upper surface of the right side of the bogie frame, and the other hourglass spring is provided at the rear end of the upper surface of the right side of the bogie frame; the hourglass spring device on the left side includes two hourglass springs. Among them, one hourglass spring is provided at the front end of the upper surface of the left side of the bogie frame, and the other hourglass spring is provided at the rear end of the upper surface of the left side of the bogie frame.

[0007] As an improvement of an embodiment of the present invention, vertical dampers are provided at both the front end and the rear end of the right side surface of the bogie frame, and vertical dampers are provided at both the front end and the rear end of the left side surface of the bogie frame.

[0008] As an improvement of an embodiment of the present invention, a traction rod is provided at the front end of the bogie frame.

[0009] As an improvement of an embodiment of the present invention, a U-shaped opening with an upward opening is provided at the left side portion of the bogie frame. In the left-right direction, the U-shaped opening penetrates the left side portion, the U-shaped opening faces the running wheel, and the size of the U-shaped opening is larger than the diameter of the running wheel.

[0010] As an improvement of an embodiment of the present invention, the drive and braking device is located on the right side of the running wheel.

[0011] As an improvement of an embodiment of the present invention, stabilizer wheels are provided below both the left side portion and the right side portion of the bogie frame.

[0012] As an improvement of an embodiment of the present invention, a lateral damper is provided at the front end of the left side portion of the bogie frame, and a lateral damper is provided at the rear end of the right side portion of the bogie frame.

[0013] As an improvement of an embodiment of the present invention, guide wheels are provided at both the front end and the rear end of the left side portion of the bogie frame, and guide wheels are provided at both the front end and the rear end of the right side portion of the bogie frame.

[0014] As an improvement of an embodiment of the present invention, the above-mentioned bogie is provided.

[0015] The bogie provided by the embodiment of the present invention and the straddle-type monorail vehicle having the same have the following advantages: The embodiment of the present invention discloses a bogie and a straddle-type monorail vehicle having the same. The bogie includes: a bogie frame having an installation space that is open up and down, and running wheels are provided in the installation space; a drive and braking device provided on the right side portion of the bogie frame and capable of driving the running wheels to rotate; hourglass spring devices are provided on both the left side portion and the right side portion of the bogie frame; the distance between the hourglass spring device on the right side and the center line of the running wheel is D1, and the distance between the hourglass spring device on the left side and the center line of the running wheel is D2, D1 < D2, wherein the center line extends in the front-rear direction and passes through the center point of the running wheel. This bogie has the advantage of high balance. Description of the Drawings

[0016] Figure 1 and Figure 2 is a perspective view including the bogie and the track beam;

[0017] Figure 3 is a side view including the bogie and the track beam;

[0018] Figure 4A top view including a bogie and a track beam;

[0019] Figure 5 It is a three-dimensional diagram including running wheels, traction motors and gear boxes. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on the embodiments are all within the protection scope of the present invention.

[0021] The following description and accompanying drawings fully illustrate the specific embodiments of this article so that those skilled in the art can practice them. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The scope of the embodiments of this article includes the entire scope of the claims, as well as all available equivalents of the claims. Herein, the terms "first", "second", etc. are only used to distinguish one element from another, without requiring or implying any actual relationship or order between these elements. In fact, the first element can also be called the second element, and vice versa. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the structure, device or equipment including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also include elements inherent to such structure, device or equipment. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the structure, device or equipment including the elements. Each embodiment is described in a progressive manner herein, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other.

[0022] The terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used herein to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this document and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description herein, unless otherwise specified and limited, the terms "installed", "connected", and "electrically connected" should be understood in a broad sense, for example, it can be a mechanical electrical connection or an electrical electrical connection, or it can be the internal connection of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] Embodiment 1 of the present invention provides a bogie for a straddle-type monorail vehicle, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, including:

[0024] A bogie frame 1, the bogie frame 1 has an installation space that is open up and down, and running wheels 2 are arranged in the installation space, and the running wheels 2 can drive the bogie to move in the front-rear direction; here, as Figure 1 and Figure 2 shown, the bogie frame 1 can be a square frame composed of two cross beams 12 and two longitudinal beams 11 (for example, the cross beam 12 and the longitudinal beam 11 are welded to each other to form a square frame), and an installation space is formed in the middle area of the square frame, and the running wheels 2 are arranged in the installation space. Optionally, the running wheels 2 are rubber tires.

[0025] A driving and braking device, the driving and braking device is arranged on the right side of the bogie frame 1 and can drive the running wheels 2 to rotate; here, it can be understood that since the driving and braking device is arranged on the right side of the bogie frame 1, the running wheels bear a large load, so the bogie has a tendency to tilt to the right. Optionally, the driving and braking device may include a basic braking device 31 and a driving device, and the driving device generally includes: a traction motor 32, a gear box 33, etc.

[0026] Hourglass spring devices are arranged on both the left side and the right side of the bogie frame 1; the distance between the hourglass spring device on the right side and the center line of the running wheels 2 is D1, and the distance between the hourglass spring device on the left side and the center line of the running wheels 2 is D2, D1 < D2, wherein, the center line extends in the front-rear direction and passes through the center point of the running wheels 2. Here, in practice, the upper end of the hourglass spring device will be connected to the bottom of the straddle-type monorail vehicle, so the hourglass spring device will buffer the vibration of the straddle-type monorail vehicle. Since D1 < D2, that is, relative to the center line of the running wheels 2, the support point of the hourglass spring device at the bottom of the straddle-type monorail vehicle will be offset to the left a little, and the formed moment can balance the moment of the weight of the bogie offset to the right, so as to achieve balanced load bearing of the two running wheels.

[0027] In this embodiment, the hourglass spring device on the right side includes two hourglass springs 4, wherein, one hourglass spring 4 is arranged at the front end of the upper surface of the right side of the bogie frame 1, and the other hourglass spring 4 is arranged at the rear end of the upper surface of the right side of the bogie frame 1;

[0028] The hourglass spring device on the left side includes two hourglass springs 4, wherein, one hourglass spring 4 is arranged at the front end of the upper surface of the left side of the bogie frame 1, and the other hourglass spring 4 is arranged at the rear end of the upper surface of the left side of the bogie frame 1.

[0029] Here, it can be understood that the running wheel 2 is located in the middle of the four hourglass springs 4, so that the stability of the bogie can be greatly improved. Optionally, the two hourglass springs 4 located at the front end of the bogie frame 1 are arranged opposite to each other, and the two hourglass springs 4 located at the rear end of the bogie frame 1 are arranged opposite to each other; Figure 1 and Figure 2 As shown, the bogie frame 1 is a square frame composed of two cross beams 12 and two longitudinal beams 11 , and an hourglass spring 4 is provided at the connection between the cross beam 12 and the longitudinal beam 11 .

[0030] In this embodiment, the front and rear ends of the right side of the bogie frame 1 are both provided with vertical shock absorbers 14, and the front and rear ends of the left side of the bogie frame 1 are both provided with vertical shock absorbers 14. Here, the vertical shock absorber 14 can effectively buffer the rolling motion of the straddle-type monorail vehicle, and under the joint action of the vertical shock absorber 14 and the hourglass spring 4, the dynamic nodding and rolling motion between the straddle-type monorail vehicle and the bogie are effectively suppressed, and the hourglass spring has a simple structure and the three-way stiffness is easy to reasonably match according to the running performance, so that the bogie does not need to be provided with an anti-nodding device and an anti-rolling device.

[0031] In this embodiment, a traction rod 15 is provided at the front end of the bogie frame 1 .

[0032] In this embodiment, a U-shaped opening 13 with an opening facing upward is provided on the left side of the bogie frame 1. In the left-right direction, the U-shaped opening 13 passes through the left side. The U-shaped opening 13 faces the running wheel 2, and the size of the U-shaped opening 13 is larger than the diameter of the running wheel 2. Here, in actual use, the running wheel 2 needs to be repaired. At this time, it may be necessary to remove the running wheel 2 from the right side. After the repair, the running wheel 2 needs to be installed to the right side. It can be understood that since the size of the U-shaped opening 13 is larger than the diameter of the running wheel 2, the user can easily remove or install the running wheel 2. Here, as Figure 1-Figure 4 As shown, the running wheel includes two rubber wheels which are symmetrically distributed on the left and right.

[0033] Here, if Figure 3 As shown, in actual use, since the straddle-type monorail vehicle will apply downward pressure to the running wheel 2, the contact portion of the running wheel 2 with the track beam will be deformed. Therefore, the bottom surface of the U-shaped opening 13 needs to be lower than the upper surface of the track beam, and the dimension A of the U-shaped opening 13 in the front-to-back direction is greater than the diameter of the running wheel 2.

[0034] In this embodiment, the driving and braking device is located on the right side of the running wheel. Here, the rotor of the driving and braking device can be inserted into the running wheel 2 from right to left, that is, the extended line of the rotor is the axis line of the running wheel 2.

[0035] In this embodiment, stabilizing wheels 16 are provided below the left and right sides of the bogie frame 1. Figure 4 As shown, the stabilizing wheel 16 can be located directly below the axis of the running wheel 2 .

[0036] In this embodiment, a lateral shock absorber 17 is provided at the front end of the left side of the bogie frame 1, and a lateral shock absorber 17 is provided at the rear end of the right side of the bogie frame 1. Here, a lateral shock absorber 14 is arranged at both the front and rear ends of the bogie frame 1, which can effectively suppress the dynamic shaking motion between the car body and the bogie by utilizing the front and rear span while buffering the lateral force, thereby improving the running stability of the straddle-type monorail vehicle.

[0037] In this embodiment, guide wheels 18 are provided at the front end and the rear end of the left side of the bogie frame 1 , and guide wheels 18 are provided at the front end and the rear end of the right side of the bogie frame 1 .

[0038] Here, if Figure 1-Figure 4 As shown, a protrusion 19 is extended forward and backward from both the left and right sides of the bogie frame 1, and a guide wheel 18 is provided on the lower surface of the protrusion 19. It can be understood that at the front end of the left side, the guide wheel 18 is located in front of the hourglass spring 4; at the rear end of the left side, the guide wheel 18 is located behind the hourglass spring 4; at the front end of the right side, the guide wheel 18 is located in front of the hourglass spring 4; at the rear end of the right side, the guide wheel 18 is located behind the hourglass spring 4. It can be understood that this can greatly improve the stability of the bogie. In addition, as Figure 1-Figure 4 As shown, in the direction away from the bogie frame 1, the height of the upper surface of the protrusion 19 gradually becomes lower, the upper surface of the protrusion 19 at the front end of the left side of the bogie frame 1 is connected to one end of the lateral shock absorber 17, and the upper surface of the protrusion 19 at the right side of the bogie frame 1 is connected to one end of the lateral shock absorber 17.

[0039] Here, if Figure 1-Figure 4 As shown, in the left side, the vertical vibration absorber 14 is on the left side of the hourglass spring 4, and in the right side, the vertical vibration absorber 14 is on the right side of the hourglass spring 4.

[0040] The second embodiment of the present invention provides a straddle-type monorail vehicle, which is provided with the bogie in the first embodiment.

[0041] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0042] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bogie, characterized in that: Comprising: A bogie frame (1), the bogie frame (1) having an upwardly and downwardly open mounting space, in which running wheels (2) are arranged, and the running wheels (2) can drive the bogie to move in the front-rear direction; A drive and braking device, the drive and braking device being arranged on the right side of the bogie frame (1) and capable of driving the running wheels (2) to rotate and braking the running wheels (2); Hourglass spring devices are arranged on both the left side and the right side of the bogie frame (1); The distance between the hourglass spring device on the right side and the center line of the running wheel (2) is D1, and the distance between the hourglass spring device on the left side and the center line of the running wheel (2) is D2, D1 < D2, wherein the center line extends in the front-rear direction and passes through the center point of the running wheel (2); the hourglass spring device on the right side includes two hourglass springs (4), wherein one hourglass spring (4) is arranged at the front end of the upper surface of the right side of the bogie frame (1), and the other hourglass spring (4) is arranged at the rear end of the upper surface of the right side of the bogie frame (1); the hourglass spring device on the left side includes two hourglass springs (4), wherein one hourglass spring (4) is arranged at the front end of the upper surface of the left side of the bogie frame (1), and the other hourglass spring (4) is arranged at the rear end of the upper surface of the left side of the bogie frame (1); vertical shock absorbers (14) are arranged at both the front end and the rear end of the right side surface of the bogie frame (1), and vertical shock absorbers (14) are arranged at both the front end and the rear end of the left side surface of the bogie frame (1); a lateral shock absorber (17) is arranged at the front end of the left side of the bogie frame (1), and a lateral shock absorber (17) is arranged at the rear end of the right side of the bogie frame (1).

2. The bogie according to claim 1, characterized in that: A traction pull rod (15) is arranged at the front end of the bogie frame (1).

3. The bogie according to claim 1, characterized in that: The left side of the bogie frame (1) is provided with a U-shaped opening (13) with an upward opening, and in the left-right direction, the U-shaped opening (13) penetrates the left side, the U-shaped opening (13) faces the running wheel (2), and the size of the U-shaped opening (13) is larger than the diameter of the running wheel (2).

4. The bogie according to claim 3, characterized in that: The drive and braking device is located on the right side of the running wheel.

5. The bogie according to claim 1, characterized in that: Stabilizing wheels (16) are arranged below both the left side and the right side of the bogie frame (1).

6. The bogie according to claim 1, characterized in that: Guide wheels (18) are arranged at both the front end and the rear end of the left side of the bogie frame (1), and guide wheels (18) are arranged at both the front end and the rear end of the right side of the bogie frame (1).

7. A straddle-type monorail vehicle, characterized in that: It is provided with the bogie according to any one of claims 1-6.

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