CN216709303U

CN216709303U - Rail vehicle and rail transit system

Info

Publication number: CN216709303U
Application number: CN202122389064.3U
Authority: CN
Inventors: 许玉红; 刘俊杰; 张安庆; 朱伟; 毛光丙
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-06-10
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a rail vehicle, comprising: a vehicle body adapted to travel along a track, the track comprising two track beams each having a track beam flange thereon extending to at least one side of the track beam; and the anti-rollover mechanism is fixed on the vehicle body and used for grasping the track beam flange to stabilize the vehicle body on the track beam. According to the rail vehicle provided by the utility model, the anti-rollover mechanism fixed on the vehicle body grasps the flange of the rail beam to stabilize the vehicle body on the rail beam, so that the rail vehicle is prevented from rollover when working on the rail beam, and the safety of high-altitude operation of the rail vehicle is improved.

Description

Rail vehicle and rail transit system

Technical Field

The utility model relates to the technical field of rail transit, in particular to a rail vehicle.

Background

When a rail vehicle, such as a rubber-tyred tram engineering vehicle, stops for operation, the legs are usually supported directly on a flat ground or a flat rail beam. However, as shown in fig. 1, when the railway vehicle 10 is operated in a section where the track beam 21 is curved and has an ultrahigh height, since the track beam surface is a circular arc and has a certain angle with the horizontal plane, there are cases where the legs 12 do not contact the beam surface or the vehicle body 11 is uneven, and the effect of stabilizing the vehicle body 11 cannot be obtained, and when the railway vehicle 10 is operated at high altitude and the working arm is extended to the side, the vehicle is liable to unstably roll down the track beam.

Therefore, it is necessary to provide a new rail vehicle to solve 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 of the present invention is not intended to define key features or essential features of the claimed solution, nor is it intended to be used to limit the scope of the claimed solution.

The utility model provides a rail vehicle, comprising:

a vehicle body adapted to travel along a track, the track comprising two track beams each having a track beam flange thereon extending to at least one side of the track beam;

and the anti-rollover mechanism is fixed on the vehicle body and used for grasping the track beam flange to stabilize the vehicle body on the track beam.

Further, the rollover prevention mechanism includes:

the mounting base is used for fixing one end of the anti-rollover mechanism on the vehicle body;

mechanical pulling claws for gripping the rail beam flange to stabilize the vehicle body on the rail beam;

and the retraction device is arranged between the mounting base and the mechanical pulling claw and is used for adjusting the distance between the mechanical pulling claw and the vehicle body so as to retract or put down the mechanical pulling claw.

Furthermore, the mechanical gripper comprises a first gripper arm and a second gripper arm, one end of the first gripper arm is hinged to one end of the second gripper arm, and the other end of the first gripper arm and the other end of the second gripper arm are provided with clamping parts used for hooking the track beam flange.

Further, the mechanical gripper further comprises a return spring, and the return spring is arranged between the first grabbing arm and the second grabbing arm and used for controlling the distance between the first grabbing arm and the second grabbing arm to be smaller than the width of the track beam.

Further, the retraction device comprises:

the distance between the mechanical pulling claw and the vehicle body is adjusted by adjusting the length of the extension line;

and the stay wire tightener is used for adjusting the length of the extension wire by controlling the stay wire tightener.

Further, a hanging piece is arranged on the vehicle body, hole grooves are formed in the first grabbing arm and the second grabbing arm, and when the mechanical pulling claw is folded, the first grabbing arm and the second grabbing arm are hung on the vehicle body.

Further, the rail vehicle comprises a driving mode and a working mode:

when the railway vehicle is in a running mode, the mechanical pulling claw is retracted by the anti-rollover mechanism and is not in contact with the track beam;

when the railway vehicle is in an operation mode, the anti-rollover mechanism lowers the mechanical pulling claw, and the mechanical pulling claw grasps the flange of the railway beam.

Further, the rail vehicle further includes:

the walking wheels are used for supporting the vehicle body to walk on the two track beams;

the guide wheels are used for being matched with the two track beams for guiding;

a leg for bracing the rail vehicle on the rail beam.

Further, the rail vehicle at least comprises two rollover prevention mechanisms which act on the two rail beams respectively, and each rail beam is provided with a flange extending towards two sides of the rail beam.

The utility model also provides a rail transit system comprising a rail vehicle and a rail, wherein the rail vehicle comprises:

According to the rail vehicle provided by the utility model, the anti-rollover mechanism fixed on the vehicle body grasps the flange of the rail beam to stabilize the vehicle body on the rail beam, so that the rail vehicle is prevented from rollover when working on the rail beam, and the safety of the high-altitude operation of the rail vehicle is improved.

Drawings

The following drawings of the utility model are included to provide a further understanding of the utility model. The drawings illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

In the drawings:

fig. 1 shows a schematic structural diagram of a rail vehicle according to the prior art;

FIG. 2 shows a schematic structural diagram of a rail vehicle according to an embodiment of the utility model;

FIG. 3 shows a schematic view of a rail vehicle in a driving mode according to an embodiment of the utility model;

fig. 4 shows a schematic view of a rail vehicle according to an embodiment of the utility model in a working mode.

Reference numerals

10. Rail vehicle

11. Vehicle body

12. Supporting leg

13. Rollover prevention mechanism

131. Mounting base

132. Retraction device

133. Mechanical pulling claw

1331. Clamping piece

1332. Reset spring

1333. Hole groove

20. Track

21. Track beam

22. Rail beam flange

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 utility model.

In the following description, a detailed description will be given to illustrate the rail vehicle of the present invention in order to thoroughly understand the present invention. It is apparent that the utility model is not limited in its application to the specific details known to those skilled in the art of rail transit. The following detailed description of the preferred embodiments of the utility model, however, the utility model is capable of other embodiments in addition to those detailed.

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 exemplary embodiments according to the utility model. 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.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. 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. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same elements are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 2, the present invention provides a rail vehicle 10, which includes:

a vehicle body 11, said vehicle body 11 being adapted to travel along a track 20, said track 20 comprising two track beams 21, each of said track beams 21 having a track beam flange 22 thereon extending to at least one side of said track beam;

the anti-rollover mechanism 13 is fixed on the vehicle body 11, and the anti-rollover mechanism 13 is used for grasping the track beam flange 22 to stabilize the vehicle body 10 on the track beam 21.

Illustratively, the rail vehicle 10 further comprises running wheels for supporting the vehicle body 10 to run on the two rail beams 21, and guide wheels for guiding in cooperation with the two rail beams 21.

In one embodiment, the vehicle body 11 is adapted to travel along the track 20, the track 20 comprises two track beams 21, a passage is defined between the two track beams 21, the passage can be used as an escape passage, an access passage or the like, running wheels of the vehicle body 11 are adapted to be supported on the two track beams 21, then the upper surface of the track beam 21 can be formed into a running surface, guiding wheels of the vehicle body 11 are adapted to be matched with the two track beams 21 for guiding, then the track beams 21 can be provided with guiding surfaces, and the guiding wheels are matched with the guiding surfaces for realizing guiding; each track beam 21 is provided with a track beam flange 22 extending towards at least one side of the track beam, and when the car body 11 turns over accidentally, the rollover prevention mechanism 13 can hook the track beam flange 22 to stabilize the car body 11 on the track beam 21, thereby preventing the railway vehicle 10 from being accidentally turned over and ensuring the running safety of the railway vehicle 10.

In one embodiment, the rail vehicle 10 further comprises at least four legs 12, as shown in fig. 1, the legs 12 being used to support the rail vehicle 10 on the rail beam 21.

Illustratively, as shown in fig. 2, the rollover prevention mechanism 13 includes:

a mounting base 131 for fixing one end of the rollover prevention mechanism 13 to the vehicle body 11;

a mechanical pulling claw 133 for grasping the rail beam flange 22 to stabilize the vehicle body 11 on the rail beam 21;

and a retraction device 132 disposed between the mounting base 131 and the mechanical pulling claw 133, for adjusting a distance between the mechanical pulling claw 133 and the vehicle body 11, so as to retract or put down the mechanical pulling claw.

In one embodiment, the rail vehicle 10 comprises at least two rollover protection mechanisms 13, each acting on one of the two rail beams 21.

In one embodiment, the vehicle body 11 may be a generally rectangular parallelepiped, and generally comprises a bottom frame, side walls, end walls, and a roof, although different types of vehicle bodies may comprise only one or more of the foregoing structures. The mounting base 131 is fixedly connected to the vehicle body 11 and located below the vehicle body 11, the mounting base 131 may be disposed at any suitable position below the vehicle body, for example, directly below the middle of the vehicle body 11, and the mounting base 131 may be fixedly connected to the vehicle body 11 by any suitable means, for example, welding, or screwing.

In one embodiment, the winding and unwinding device 132 includes an extension line and a pull line tightener, the pull line tightener includes a ratchet, a pawl and a wrench, the length of the extension line is adjusted by the pull line tightener, the distance between the mechanical pulling claw 133 and the car body 11 is further adjusted by controlling the length of the extension line, the pull line tightener pays out a part or all of the extension line when the car body 11 needs to be stabilized on the track beam 21 by the mechanical pulling claw 133, and the pull line tightener withdraws a part or all of the extension line when the mechanical pulling claw 133 is not needed.

In one embodiment, the ratchet mechanism is integrated with a wrench, the ratchet mechanism is used for limiting the rotation direction of the ratchet wheel, and the wrench is used for driving the ratchet wheel to rotate. When the mechanical pulling claw 133 is required to grasp the track beam 21, the process of lowering the mechanical pulling claw 133 includes: the pawl is pulled away from the position blocking the rotation of the ratchet wheel, the mechanical pulling claw 133 is pulled to pull the extension line to a proper length, and the pawl is pulled back to the position blocking the rotation of the ratchet wheel. The mechanical pulling pawl 133 then grips the track beam 21 and the rotary wrench rotates the ratchet (e.g., in a clockwise direction) to properly retract a portion of the extension line to tighten the extension line so that the mechanical pulling pawl 133 grips the track beam 21. Similarly, when the mechanical pulling claw 133 is not required to be used continuously, the process of retracting the mechanical pulling claw 133 includes: poking the pawl away from the position blocking the rotation of the ratchet, removing the mechanical pull pawl 133 from the track beam 21, and poking the pawl back to the position blocking the rotation of the ratchet; the rotating wrench drives the ratchet wheel to rotate so as to partially or completely withdraw the extension line; in addition, before the mechanical pulling claw 133 is removed from the track beam 21, a process of paying out the extension cord appropriately to loosen the tensioned extension cord is also included, and will not be described in detail herein.

Illustratively, the mechanical gripper 133 includes a first gripper arm and a second gripper arm, one end of the first gripper arm is hinged to one end of the second gripper arm, and the other end of the first gripper arm and the other end of the second gripper arm are both provided with a locking piece 1331 for locking the track beam flange 22.

Illustratively, the mechanical gripper 133 further comprises a return spring 1332, and the return spring 1332 is disposed between the first and second gripping arms for controlling the distance between the first and second gripping arms to be smaller than the width of the track beam 21.

Illustratively, the first and second gripping arms are provided with hole slots 1333, and the vehicle body 11 is provided with hanging members for hanging the first and second gripping arms on the vehicle body 11 when the mechanical gripper 133 is retracted.

In one embodiment, when the mechanical gripper 133 is not needed, the first and second gripping arms are preferably attached together with a minimum distance under the action of the return spring 1332, and the mechanical gripper is hooked to the vehicle body 11, for example, to the underframe of the vehicle body 11, by using the hole slots 1333 of the first and second gripping arms and the hanging piece of the vehicle body 11.

In one embodiment, when it is desired to grasp the track beam 21 using the mechanical gripper 133, the mechanical gripper 133 is first lowered by the retracting device 132, the first and second gripping arms that are engaged together by the return spring 1332 are opened, so that the separation between the first and second gripping arms is greater than the width of the track beam 21, then, the stoppers 1331 provided at the distal ends of the first and second gripping arms catch the rail beam flanges 22, the rail beam flange 22 may extend towards the inner side (the side close to the passage) of the rail beam 21, or towards the outer side of the rail beam, preferably, the track beam flanges 22 extend towards both sides of the track beam 21, the mechanical pulling claw grips the track beam 21 by the first gripping arm and the second gripping arm, and further the extension line is tensioned by the retracting device 122, so that the mechanical pulling claw grips the track beam 21. Similarly, the mechanical gripper 133 can be removed from the track beam 21 by opening the first and second gripping arms so that the opening distance between the first and second gripping arms is greater than the width of the track beam 21, and the detailed process is not repeated here.

It should be noted that the first and second gripping arms may grip the track beam 21 through an electrical control or the like, which is not limited in this application.

The mechanical pulling claw is used for grasping the track beam to replace a supporting leg to support so as to stabilize the track vehicle, the requirement of the track vehicle on the width of a beam surface is reduced, the quantity of the track beam is reduced, and the engineering cost is reduced.

Illustratively, referring to fig. 3 and 4, the rail vehicle 10 includes a driving mode and a working mode:

In one embodiment, when the rail vehicle is in a running mode, under the action of the return spring, the distance between the first gripping arm and the second gripping arm is minimum, preferably, the first gripping arm and the second gripping arm are attached together, and the mechanical pulling claw is hung on the vehicle body, for example, on the underframe of the vehicle body by using the hole grooves arranged on the first gripping arm and the second gripping arm and the hanging piece arranged on the vehicle body, and the mechanical pulling claw is not in contact with the rail beam, as shown in fig. 3.

In one embodiment, when the rail vehicle is in the working mode, the retraction device 122 is deployed to let out the mechanical gripper, the first and second gripping arms grip the rail beam, further, the detents at the ends of the first and second gripping arms grip the rail beam flange, and the retraction device 122 pulls the extension line tight, thereby allowing the mechanical gripper to grip the rail beam flange, as shown in fig. 4.

In one embodiment, when the railway vehicle enters the operation mode from the driving mode, the rollover prevention mechanism lowers the mechanical pulling claw, and the mechanical pulling claw grips the flange of the railway beam, and the specific process comprises the following steps: and taking the mechanical pulling claw hung on the vehicle body off the vehicle body, pulling the pawl from the position blocking the rotation of the ratchet wheel, pulling the mechanical pulling claw to pull the extension line to a proper length, and pulling the pawl back to the position blocking the rotation of the ratchet wheel. Then, the first and second gripping arms, which are attached together by the return spring 1332, are opened such that the distance between the first and second gripping arms is greater than the width of the track beam, and then the catches at the ends of the first and second gripping arms catch the track beam flanges, which may extend to the inside of the track beam or to the outside of the track beam, preferably to both sides of the track beam, and the mechanical grippers grip the track beam by the first and second gripping arms. The wrench is then rotated to rotate the ratchet to properly retract a portion of the extension line to tighten the extension line so that the mechanical pull pawl grips the track beam.

In one embodiment, when the rail vehicle enters a driving mode from a working mode, the mechanical pulling claw releases the rail beam flange, and the rollover prevention mechanism retracts the mechanical pulling claw, and the specific process comprises the following steps: the pawl is pulled out from the position blocking the rotation of the ratchet wheel, the first grabbing arm and the second grabbing arm are opened, so that the opening distance between the first grabbing arm and the second grabbing arm is larger than the width of the track beam, the mechanical pulling claw is taken down from the track beam, the pawl is pulled back to the position blocking the rotation of the ratchet wheel, the spanner is rotated to drive the ratchet wheel to rotate, the extension line is partially or completely withdrawn, and the mechanical pulling claw is hung back to the vehicle body.

According to the rail vehicle provided by the utility model, the anti-rollover mechanism fixed on the vehicle body grasps the flange of the rail beam to stabilize the vehicle body on the rail beam, so that the rail vehicle is prevented from rollover when the rail beam is operated at a section with an ultrahigh curve, and the safety of high-altitude operation of the rail vehicle is improved.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the utility model to the scope of 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 variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A rail vehicle, comprising:

2. The rail vehicle of claim 1, wherein the rollover prevention mechanism comprises:

3. The railway vehicle as claimed in claim 2, wherein the mechanical gripper comprises a first gripper arm and a second gripper arm, one end of the first gripper arm is hinged to one end of the second gripper arm, and the other end of the first gripper arm and the other end of the second gripper arm are both provided with a catch for catching the flange of the railway beam.

4. The rail vehicle of claim 3, wherein the mechanical gripper further comprises a return spring disposed between the first gripper arm and the second gripper arm for controlling the first gripper arm to be spaced apart from the second gripper arm by less than the width of the rail beam.

5. The rail vehicle of claim 2, characterized in that the retraction device comprises:

6. The rail vehicle of claim 3, wherein the vehicle body is provided with a hanger, and the first and second gripping arms are provided with a slot to hang the first and second gripping arms on the vehicle body when the mechanical gripper is retracted.

7. The rail vehicle according to claim 2, characterized in that the rail vehicle comprises a driving mode and a working mode:

8. The rail vehicle of claim 1, further comprising:

a leg for bracing the rail vehicle on the rail beam.

9. The rail vehicle of claim 1, characterized in that the rail vehicle comprises at least two of the rollover prevention mechanisms acting on the two rail beams, respectively, each of the rail beams having flanges extending to both sides of the rail beam.

10. A rail transit system comprising a rail vehicle and a rail, the rail vehicle comprising: