A bogie, a rail vehicle, a monorail track and a monorail transportation system

Abstract

The embodiment of the application provides a bogie, a rail vehicle, a monorail track and a monorail traffic system, the bogie comprises a bogie body and a turning assisting device, the turning assisting device is arranged on the bogie body, and the turning assisting device comprises a swing arm, a turning wheel, a rotating mechanism and a controller. The swing arm structure is matched with the high track structure of the turnout area, so that when the vehicle enters the turnout, the vehicle can smoothly pass through the turnout through the contact between the turning wheel and the track side of the turnout area, and the structure is simple and reliable. The turning assisting device can also change the traditional movable turnout into a fixed turnout, and reduces the turnout failure rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, in particular to a bogie, a rail vehicle, a monorail track and a monorail transit system. BACKGROUND

[0002] Rail transit runs along a track, and at the end of the line, a station or a safety angle is considered, which inevitably uses a turnout. When the vehicle passes through the turnout, the signal system controls the turnout to perform relevant actions before the vehicle passes through, ensuring that the turnout area is in the required state, and the vehicle receives the relevant signal and drives through the turnout.

[0003] The turnout device is a component of the track system and is a special equipment for realizing the line switching of the vehicle. The monorail transit system plays an important role in the field of passenger rail transit due to its excellent climbing performance, lower noise, lower cost and larger carrying capacity. The existing monorail transit system turnouts mainly have two types: translation type and rotation type. Both types of turnouts need a driving unit, and in actual use, the close cooperation of the turnout, signal and vehicle is required to ensure that the vehicle passes through the turnout smoothly and achieves the purpose of line switching.

[0004] However, the existing monorail transit system turnout structure is relatively complex, has a high cost, and also causes a certain failure rate. When the vehicle passes through the turnout for line switching, multiple systems need to be closely coordinated, and a certain safety margin is required for the vehicle to pass through after the turnout is actuated, which increases the driving interval and reduces the carrying efficiency of the line. SUMMARY

[0005] In order to solve one of the above technical defects, a bogie, a rail vehicle, a monorail track and a monorail transit system are provided in the embodiments of the present application.

[0006] According to a first aspect of the embodiments of the present application, a bogie is provided, which comprises a bogie body and a turning auxiliary device, the turning auxiliary device is arranged on the bogie body, and the turning auxiliary device comprises:

[0007] a swing arm arranged at the front end and / or rear end of the bogie body;

[0008] a turning wheel rotatably arranged at the front end of the swing arm;

[0009] a rotating mechanism for rotatably connecting the swing arm to the bogie body and driving the swing arm to swing, and when the rotating mechanism drives the swing arm to swing, the moving plane of the turning wheel is higher than the top surface of the side edge of the track in a non-turnout area and lower than the top surface of the side edge of the track in a turnout area;

[0010] A controller is configured to receive a switch signal of a trackside device, obtain a running direction according to the switch signal, and control the rotating mechanism to drive the swing arm to swing to a working position according to the running direction.

[0011] According to a second aspect of the present application, a rail vehicle is provided, which comprises the bogie according to the first aspect of the present application.

[0012] According to a third aspect of the present application, a monorail track is provided, which comprises a switch region track and a non-switch region track connected to each other, the switch region track is used for the rail vehicle according to the second aspect of the present application to change lanes, the height of the side of the switch region track is greater than the height of the side of the non-switch region track, the moving plane of the steering wheel is higher than the top surface of the side of the non-switch region track, and the wheel surface of the steering wheel is in contact with the outer surface of the side of the switch region track when the swing arm is in the working position.

[0013] According to a fourth aspect of the present application, a monorail transportation system is provided, which comprises the rail vehicle according to the second aspect of the present application and the monorail track according to the third aspect of the present application.

[0014] The bogie provided in the present application uses the swing arm structure to cooperate with the high track structure of the switch region, so that the vehicle can smoothly pass through the switch region through the contact between the steering wheel and the track side of the switch region when the vehicle enters the switch region, and the structure is simple and reliable. The steering auxiliary device can also make the traditional movable switch become a fixed switch, thereby reducing the failure rate of the switch. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate certain illustrative embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0016] Figure 1 A structure schematic diagram of the bogie provided in the first embodiment of the present application, at this time, the working position of the swing arm is 0°;

[0017] Figure 2 A structure schematic diagram of the bogie provided in the first embodiment of the present application, at this time, the working position of the swing arm is 180°;

[0018] Figure 3 A schematic diagram of the rail vehicle before entering the switch region;

[0019] Figure 4 A three-dimensional schematic diagram of the rail vehicle driving in the switch region;

[0020] Figure 5A schematic view of a cross section of a rail vehicle driving in a non-switch region;

[0021] Figure 6 A schematic view of a cross section of a rail vehicle driving in a non-switch region;

[0022] Figure 7 A schematic view of a structure of a rotating mechanism.

[0023] Reference signs:

[0024] 1, swing arm, 2, steering wheel, 3, rotating mechanism, 4, bogie body, 5, top plate, 6, gap, 7, guide wheel, 8, non-switch region track side, 9, switch region track side, 10, rotating shaft, 11, stepping motor. DETAILED DESCRIPTION

[0025] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0026] Embodiment 1

[0027] As Figure 1 described, the present embodiment proposes a bogie, which comprises a bogie body 4 and a steering auxiliary device. The steering auxiliary device is arranged on the bogie body 4, wherein the steering auxiliary device comprises:

[0028] a swing arm 1 arranged at the front end and / or rear end of the bogie body 4;

[0029] a steering wheel 2 rotatably arranged at the front end of the swing arm 1;

[0030] a rotating mechanism 3 for rotatably connecting the swing arm 1 to the bogie body 4 and driving the swing arm 1 to swing, and when the rotating mechanism 3 drives the swing arm 1 to swing, the moving plane of the steering wheel 2 is higher than the top surface of the non-switch region track side 8 and lower than the top surface of the switch region track side 9;

[0031] a controller for receiving a switch signal of a trackside device, obtaining a running direction according to the switch signal, and controlling the rotating mechanism 3 to drive the swing arm 1 to swing to a working position according to the running direction.

[0032] Specifically, in the embodiment, the base structure of the bogie body 4 is the same as that of a conventional bogie. A device capable of achieving steering assistance is arranged at the front end, rear end or both ends of the bogie body 4. The device includes a swing arm 1, a steering wheel 2, a rotating mechanism 3 and a controller. The swing arm 1 is rotatably connected to the bogie body 4 through the rotating mechanism 3. The rotating mechanism 3 can drive the swing arm 1 to swing. The steering wheel 2 is rotatably arranged at the front end of the swing arm 1. The steering wheel 2 can rotate on the swing arm 1 under the action of an external force. The controller can be arranged inside the bogie body 4 and carried on a circuit board with a peripheral circuit. The controller can receive a turnout signal of a trackside device, analyze and process the turnout signal to obtain the running direction of the track vehicle in front, i.e. the turning direction of the turnout. Then, the controller controls the rotating mechanism 3 to drive the swing arm 1 to swing to a working position according to the running direction, so as to realize the running of the track vehicle in the turnout area.

[0033] More specifically, in order to maintain the stability of the track vehicle running in the turnout area, the embodiment preferably arranges a steering assistance device at the front end and the rear end of the bogie body 4. The two steering assistance devices can share one controller and realize synchronous action. Generally, the running direction of the track vehicle in the turnout area has only two directions, i.e. left turn and right turn. Therefore, in the embodiment, the working position of the swing arm 1 has only two positions, i.e. 0° and 180°, i.e. swinging to the leftmost side and the rightmost side, as shown in Figs. 2 and 3. Figure 1 and Figure 2 When the swing arm 1 swings to the above two working positions, it is necessary to ensure that the steering wheel 2 is located outside the track side, and at the same time, when the track vehicle is in the turnout area, it is also necessary to ensure that the steering wheel 2 is in contact with the outer side of the track side 9 of the turnout area. In this way, the auxiliary steering effect of the steering wheel 2 can be fully exerted when the track vehicle runs in the turnout area.

[0034] In order to realize the auxiliary steering effect of the steering wheel 2, it is necessary to ensure that the swing arm 1 reaches the working position before the track vehicle enters the turnout area. Also, it is necessary to ensure that the swing arm 1 is not affected by the track side during swinging. Based on this, the position of the swing arm 1 and the steering wheel 2 is limited as follows in the embodiment. First, when the rotating mechanism 3 drives the swing arm 1 to swing, the moving plane of the steering wheel 2 needs to be higher than the top surface of the non-turnout area track side 8, so that the movement of the steering wheel 2 is not affected by the track side. Second, when the swing arm 1 is in the working position, the steering wheel 2 needs to be located outside the track side, and the wheel surface of the steering wheel 2 needs to be in contact with the outer side of the track side 9 of the turnout area. The scheme that the wheel surface of the steering wheel 2 is in contact with the outer side of the track side 9 of the turnout area is realized by two ways in the embodiment.

[0035] The first way is lifting driving. Specifically, a lifting motor can be arranged above the steering wheel 2, and the steering wheel 2 can move up and down through the lifting motor. When the controller receives the turnout signal and obtains that the running direction of the front turnout area is left turning, the controller controls the rotating mechanism 3 to drive the swing arm 1 to swing to the 0° working position, that is, the leftmost side. At the same time, the controller controls the lifting motor to drive the steering wheel 2 to move downward, so that the steering wheel 2 completes the positioning action before entering the turnout area. When the track vehicle enters the turnout area, the wheel surface of the steering wheel 2 naturally contacts the outer side surface of the turnout area track side 9.

[0036] The second way is to lift the track. Specifically, in the embodiment, the moving plane of the steering wheel 2 is higher than the top surface of the non-turnout area track side 8. That is, the steering wheel 2 is above the track side as a whole. If the turnout area track side 9 is flush with the non-turnout area track side 9, the steering wheel 2 will not contact the turnout area track side 9. Therefore, the turnout area track side 9 is lifted in the embodiment, that is, the height of the turnout area track side 9 is greater than the height of the non-turnout area track side 9, or the moving plane of the steering wheel 2 is lower than the top surface of the turnout area track side 9, as shown in FIG. 4. When the controller receives the turnout signal and obtains that the running direction of the front turnout area is right turning, the controller controls the rotating mechanism 3 to drive the swing arm 1 to swing to the 180° working position, that is, the rightmost side. When the track vehicle enters the turnout area, the wheel surface of the steering wheel 2 naturally contacts the outer side surface of the turnout area track side 9, as shown in FIG. 5. At this time, the turnout area track side 9 can provide a force point for the steering wheel 2, so that the steering wheel 2 can assist the turning of the track vehicle. Figure 3 Figure 4 Figure 5 The above two ways can be determined according to the actual situation of the track vehicle operation and the factors of the track laying environment.

[0037] It should be noted that in the embodiment, the swing arm 1 has only two working positions, that is, if the position of the swing arm 1 is not in the above two working positions, it is judged that the swing arm 1 has a fault and needs to be repaired. In other words, if the front of the track vehicle is a turnout area, and the working position of the swing arm 1 is 0° at this time, according to the running direction of the turnout area, the swing arm 1 either maintains the 0° working position (the running direction is left turning), or swings from the 0° working position to the 180° working position (the running direction is right turning), without other intermediate processes.

[0038] It should be noted that in the embodiment, the swing arm 1 has only two working positions, that is, if the position of the swing arm 1 is not in the above two working positions, it is judged that the swing arm 1 has a fault and needs to be repaired. In other words, if the front of the track vehicle is a turnout area, and the working position of the swing arm 1 is 0° at this time, according to the running direction of the turnout area, the swing arm 1 either maintains the 0° working position (the running direction is left turning), or swings from the 0° working position to the 180° working position (the running direction is right turning), without other intermediate processes.

[0039] ​​The above process can also be achieved completely by manual, that is, the driver determines the running direction of the turnout area in front of the vehicle by visual observation or receiving signals from trackside equipment, and then manually controls the swinging action of the swing arm 1 by using the operating lever or the button. This process is dominated by human factors, and accidents are prone to occur. Therefore, the automatic control is preferred in this embodiment.

[0040] Further, in this embodiment, a top plate 5 is arranged at the front end and / or rear end of the bogie body 4. A gap 6 is left between the top plate 5 and the bogie body 4, and the swing arm 1 is arranged in the gap 6, as shown in Figure 6 . In this way, the installation space for the swing arm 1 is created, and the basic structure of the overall bogie body 4 is not changed. The rotating mechanism 3 is also arranged in the gap 6. The rotating mechanism 3 specifically includes a stepping motor 11 and a rotating shaft 10, as shown in Figure 7 . The rotating shaft 10 is erected in the gap 6, and the two ends of the rotating shaft 10 are rotatably connected with the top plate 5 and the bogie body 4, respectively. The signal end of the stepping motor 11 is connected with the controller to receive the signal instruction of the controller. The output shaft of the stepping motor 11 is connected with one end of the rotating shaft 10. The rear end of the swing arm 1 is fixed on the side wall of the rotating shaft 10. When the controller issues a swinging instruction, the swing arm 1 can be swung by the stepping motor 11. In this process, the swinging of the swing arm 1 is controlled by the stepping motor 11, and the swing arm 1 is always in an empty state when it rotates, so the power requirement of the stepping motor 11 is low, which can save costs to a certain extent.

[0041] Further, the position sensor is arranged at the working position of the swing arm 1 in this embodiment, and the position sensor can be embedded in the bogie body 4. The position of the swing arm 1 can be detected before the track vehicle enters the turnout area. If the swing arm 1 is not in the correct working position, the position sensor can feed back a fault signal to the controller to ensure the safety of the track vehicle.

[0042] In addition, the bogie of this embodiment also includes a guide wheel set. The guide wheel set is arranged at the front end and / or rear end of the bogie body 4 and below the swing arm 1, as shown in Figure 6 . The height of the guide wheel set from the track plane is less than the height of the track side edge. The guide wheel set includes two guide wheels 7, which are respectively arranged on the left and right sides of the bogie body 4, and the maximum distance between the two guide wheels 7 is less than the width of the track plane.

[0043] Further, the minimum lateral distance between the steering wheel 2 and the guide wheel 7 is the thickness of the track side edge 9 of the turnout area, so that the steering wheel 2 and the guide wheel 7 can both realize turning with the track side edge 9 of the turnout area as the fulcrum.

[0044] The embodiment uses the swing arm 1 structure to match the high rail structure of the turnout area, so that when the vehicle enters the turnout, the contact between the steering wheel 2 and the turnout area rail side 9 enables the vehicle to smoothly pass through the turnout, and the structure is simple and reliable. This kind of steering auxiliary device can also make the traditional movable turnout become a fixed turnout, and reduce the failure rate of the turnout.

[0045] Embodiment 2

[0046] The embodiment provides a rail vehicle, which comprises a bogie. The structure of the bogie can refer to the content described in Embodiment 1, and will not be repeated here.

[0047] Embodiment 3

[0048] The embodiment provides a monorail, which specifically comprises a turnout area rail and a non-turnout area rail connected with each other. The turnout area rail is used for lane changing of a rail vehicle. The rail vehicle can be the rail vehicle described in Embodiment 2, and will not be repeated here.

[0049] Further, the height of the turnout area rail side 9 is greater than the height of the non-turnout area rail side 8, and the moving plane of the steering wheel 2 is higher than the top surface of the non-turnout area rail side 8, so that when the swing arm 1 is in the working position, the wheel surface of the steering wheel 2 is in contact with the outer surface of the turnout area rail side 9.

[0050] The embodiment uses the swing arm 1 structure to match the high rail structure of the turnout area, so that when the vehicle enters the turnout, the contact between the steering wheel 2 and the turnout area rail side 9 enables the vehicle to smoothly pass through the turnout, and the structure is simple and reliable. This kind of steering auxiliary device can also make the traditional movable turnout become a fixed turnout, and reduce the failure rate of the turnout.

[0051] Embodiment 4

[0052] The embodiment provides a monorail transit system, which comprises a rail vehicle and a monorail for the rail vehicle to travel. The rail vehicle can refer to the content described in Embodiment 2, and the monorail can refer to the content described in Embodiment 3. The embodiment will not be repeated here.

[0053] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0057] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A bogie, characterized in that, The bogie comprises a bogie body and a turning assisting device, the turning assisting device is arranged on the bogie body, and the turning assisting device comprises: a swing arm arranged at the front end and / or rear end of the bogie body; a turning wheel rotatably arranged at the front end of the swing arm; a turning mechanism for rotatably connecting the swing arm to the bogie body and driving the swing arm to swing, and when the turning mechanism drives the swing arm to swing, the moving plane of the turning wheel is higher than the top surface of the non-switch region track side edge and lower than the top surface of the switch region track side edge; a controller for receiving a switch signal of a trackside device, obtaining a running direction according to the switch signal, and controlling the turning mechanism to drive the swing arm to swing to a working position according to the running direction; the front end and / or rear end of the bogie body is provided with a top plate, a gap is left between the top plate and the bogie body, and the swing arm is arranged in the gap; the turning mechanism comprises a stepping motor and a rotating shaft, the rotating shaft is vertically arranged in the gap, and the two ends of the rotating shaft are rotatably connected to the top plate and the bogie body respectively, the signal end of the stepping motor is connected to the controller, the output shaft of the stepping motor is connected to one end of the rotating shaft, and the rear end of the swing arm is fixed to the side wall of the rotating shaft.

2. The bogie according to claim 1, characterized in that When the swing arm is in the working position, the turning wheel is located outside the track side edge, and the wheel surface of the turning wheel is in contact with the outer side surface of the track side edge of the switch region.

3. The bogie of claim 1, wherein A position sensor is arranged at the working position, the position sensor is fixed to the bogie body and used for detecting the position state of the swing arm.

4. The bogie of claim 1, wherein The bogie further comprises a guide wheel set, the guide wheel set is arranged at the front end and / or rear end of the bogie body and located below the swing arm, the height of the guide wheel set from the track plane is less than the height of the track side edge, the guide wheel set comprises two guide wheels located at the left and right sides of the bogie body respectively, and the maximum distance between the two guide wheels is less than the width of the track plane.

5. The bogie of claim 4, wherein The minimum transverse distance between the turning wheel and the guide wheel is the thickness of the track side edge of the switch region.

6. A rail vehicle, characterized by The track vehicle comprises the bogie according to any one of claims 1 to 5.

7. A monorail track, characterized in that The track vehicle comprises the bogie according to any one of claims 1 to 5.

8. A monorail transit system characterized by, The track vehicle comprises the bogie according to any one of claims 1 to 5.

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