CN215752398U - Bogie, rail vehicle and rail transit system - Google Patents
Bogie, rail vehicle and rail transit system Download PDFInfo
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- CN215752398U CN215752398U CN202122038338.4U CN202122038338U CN215752398U CN 215752398 U CN215752398 U CN 215752398U CN 202122038338 U CN202122038338 U CN 202122038338U CN 215752398 U CN215752398 U CN 215752398U
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Abstract
The present disclosure relates to a bogie, a rail vehicle and a rail transit system. The bogie comprises running wheels, an electromagnetic guiding device and a sensing element. The electromagnetic guide device is arranged between the two running wheels and is in transmission connection with the running wheels, an adjusting gap is formed between the electromagnetic guide device and the beam guide surface, and the sensing element is arranged in front of the electromagnetic guide device facing the advancing direction of the railway vehicle and used for measuring the change of the measuring gap between the sensing element and the beam guide surface. Therefore, the electromagnetic guide device can realize the steering of the railway vehicle in a non-contact mode, and avoids the damage of a mechanical contact type guide mode to the guide wheel. Meanwhile, the sensing element is arranged in front of the electromagnetic guiding device facing the advancing direction, so that the sensing element can detect the change of the measurement gap in advance, corresponding strategy reaction can be made in advance, and the electromagnetic guiding device can execute the strategy according to the actual situation in a lagging mode.
Description
Technical Field
The disclosure relates to the field of rail transit, in particular to a bogie, a rail vehicle and a rail transit system.
Background
The bogie realizes the steering of the railway vehicle in the advancing process through the bogie, in the related art, the bogie is generally provided with a guide wheel, and the guide wheel is in rolling contact with a guide surface of a track so as to realize the steering of the railway vehicle.
SUMMERY OF THE UTILITY MODEL
A first object of the present disclosure is to provide a bogie that can implement a non-contact guiding manner.
In order to achieve the above object, the present disclosure provides a bogie including:
the running wheels comprise two wheels which are arranged at intervals along the width direction of the vehicle;
the electromagnetic guide device is arranged between the two walking wheels and is in transmission connection with the walking wheels, and an adjusting gap is formed between the electromagnetic guide device and the beam guide surface;
the sensing element is arranged in front of the electromagnetic guiding device facing the traveling direction of the railway vehicle and used for measuring the change of a measuring gap between the sensing element and the beam guiding surface;
in response to a change in the measurement gap between the sensing element and the beam guide surface, the electromagnetic guide is capable of adjusting the adjustment gap with the beam guide surface and forcing the running wheels to deflect.
Alternatively, the electromagnetic guide device includes two electromagnetic guide devices spaced apart in the vehicle width direction to form an electromagnetic guide group, and at least one of the two electromagnetic guide devices is provided with the sensor element correspondingly.
Optionally, the electromagnetic guide sets comprise two sets spaced apart in the direction of travel of the rail vehicle.
Optionally, the sensing element and the electromagnetic guiding device are configured such that the measurement gap and the adjustment gap have the same amount of change or a linear relationship of the amount of change.
Optionally, the electromagnetic guiding device includes an iron core coated with an insulating material and an electromagnet winding wound outside the iron core.
Optionally, the bogie further comprises a steering mechanism disposed between the running wheels and the electromagnetic guiding device, the steering mechanism comprising: the electromagnetic steering device and the sensing element are arranged at the bottom of the slewing bearing assembly, the guide rod is connected with the slewing bearing assembly, one end of the steering arm is connected with the walking wheel, and the other end of the steering straight arm is connected with the slewing bearing assembly through the guide rod.
Optionally, the electromagnetic guiding device and the sensing element are connected to the slewing bearing assembly through a connecting frame, the connecting frame includes a connecting bracket and a mounting bracket, the connecting bracket is used for being connected to the slewing bearing assembly, the mounting bracket is fixedly disposed on the connecting bracket, and the electromagnetic guiding device and the sensing element are disposed on the mounting bracket.
A second object of the present disclosure is to provide a railway vehicle comprising the bogie as described above.
The third purpose of this disclosure is to provide a rail transit system, including track roof beam and rail vehicle, the track roof beam includes two walking rails that set up along the car width direction interval, the rail vehicle is above-mentioned rail vehicle.
Optionally, the track beam is a straddle type track beam integrally shaped like a Chinese character 'ao'.
By means of the cooperation of the electromagnetic guide device and the sensor element, i.e. in response to a change in the measuring gap between the sensor element and the beam guide surface during the travel of the rail vehicle, the electromagnetic guide device can adjust the adjustment gap with the beam guide surface and force the running wheels to deflect. In the process, the electromagnetic guide device and the beam guide surface are always kept with a gap, namely, the electromagnetic guide device can realize the steering of the railway vehicle in a non-contact mode, and the damage of a mechanical contact type guide mode to guide wheels is avoided. Meanwhile, the sensing element is arranged in front of the electromagnetic guiding device facing the advancing direction, so that the sensing element can detect the change of the measurement gap in advance, and further make a corresponding strategy reaction in advance, and the electromagnetic guiding device can delay the execution strategy according to the actual condition.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a perspective view of a truck provided by an exemplary embodiment of the present disclosure;
FIG. 2 is a front view of the truck of FIG. 1;
FIG. 3 is a top view of the truck of FIG. 1;
FIG. 4 is a side view of the truck of FIG. 1;
fig. 5 is a schematic view of a guide device provided in an exemplary embodiment of the present disclosure.
Description of the reference numerals
1-running wheels, 2-electromagnetic guiding devices, 21-iron cores, 22-electromagnet windings, 3-sensing elements, 41-slewing bearing assemblies, 411-slewing bearing mounting seats, 412-slewing bearings, 42-steering rods, 421-steering drag rods, 422-steering tie rods, 43-steering straight arms, 431-left steering straight arms, 432-right steering straight arms, 44-connecting frames, 441-connecting frames, 442-mounting frames, 45-axle housings, 46-axle housing forks, 47-steering knuckle forks, 48-mounting seats, 5-track beams, 51-beam top surfaces and 52-beam guiding surfaces.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise specified, the use of directional words such as "upper, lower, left and right" is defined according to the directions indicated in the respective drawings, and "inner" and "outer" refer to the inner and outer of the contours of the respective parts themselves. Furthermore, the terms "first," "second," and the like, as used herein, are intended to distinguish one element from another, and not necessarily to distinguish between order and importance. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.
As shown in fig. 1 to 5, the present disclosure provides a bogie that can be applied to a railway vehicle and can provide guidance during steering of the railway vehicle. The present disclosure provides a rail vehicle adapted to travel on a rail beam having two running rails. It should be noted that two running rails may be arranged on both sides of one track beam, for example a straddle monorail, or two separate tracks, without limitation. For convenience of description, the straddle type monorail transportation system is described as an example.
The bogie of the present disclosure comprises running wheels 1, at least one electromagnetic guiding device 2 and a sensing element 3. The two running wheels 1 are arranged at intervals along the width direction of the vehicle, are supported on the beam top surface 51 and can drive the rail vehicle to run and steer. The electromagnetic guiding device 2 is arranged between the two running wheels 1 and is in transmission connection with the running wheels 1, and an adjusting gap S1 is formed between the electromagnetic guiding device 2 and the beam guiding surface 52. The sensor element 3 is arranged in front of the electromagnetic guide 2 in the direction of travel of the rail vehicle for detecting a change in the measurement gap S2 between the sensor element 3 and the beam guide surface 52. In response to a change in the measurement gap S2 between the sensor element 3 and the beam guide surface 52, the electromagnetic guide device 2 can adjust the adjustment gap S1 with the beam guide surface 52 and force the running wheels 1 to deflect.
The adjustment gap S1 between the electromagnetic guide 2 and the beam guide surface 52 should be kept constant during normal running of the rail vehicle in the straight section. However, even in the straight section, the rail vehicle still has unavoidable disturbances, so that the adjustment gap S1 changes, or the adjustment gap S1 inevitably changes due to the centrifugal force during the turning of the rail vehicle. Taking fig. 3 as an example, when the rail vehicle turns right, the entire rail vehicle is shifted to the left. At this time, in order to enable the rail vehicle to return to a normal running state or a smooth steering, it is necessary to adjust the adjustment gap S1, which has changed, that is, to return the adjustment gap S1 to a preset value or a range of values.
The adjustment of the adjustment gap S1 is the adjustment of the position of the electromagnetic guide device 2, and the running wheels 1 are in driving connection with the electromagnetic guide device 2, so that the running wheels 1 are forced to deflect with the change of the position of the electromagnetic guide device 2, and the rail vehicle can be steered. Whether the adjustment gap S1 has changed or whether the adjustment gap S1 deviates from a preset value or range is detected by the sensor element 3. The sensor element 3 may be any element capable of measuring the distance between two objects, for example, a laser range finder.
By cooperation of the electromagnetic guide 2 and the sensor element 3, i.e. in response to a change in the measurement gap S2 between the sensor element 3 and the beam guide surface 52 during travel of the rail vehicle, the electromagnetic guide 2 can adjust the adjustment gap S1 with the beam guide surface 52 and force the running wheels 1 to deflect. In the process, the electromagnetic guide device 2 always keeps a gap with the beam guide surface 52, that is, the electromagnetic guide device 2 can realize the steering of the railway vehicle in a non-contact mode, and the damage of a mechanical contact type guide mode to guide wheels is avoided. Meanwhile, as the sensing element 3 is arranged in front of the electromagnetic guiding device 2 facing the traveling direction, the sensing element 3 can detect the change of the measurement gap S2 in advance, so as to make a corresponding strategy response in advance, and the electromagnetic guiding device 2 can delay the strategy execution according to the actual situation.
The number of electromagnetic guiding means 2 and sensor elements 3 chosen is not limited by the present disclosure. For example, the bogie may be provided with one electromagnetic guiding device 2, which electromagnetic guiding device 2 may be arranged either on the left or on the right side of the bogie. Since the distance between the running rails on both sides and the size of the bogie are preset and do not change arbitrarily with the travel of the vehicle, when the sensor element 3 detects a change in the measurement gap S2 on one side, for example, when the gap becomes smaller, the gap on the other side inevitably increases. Likewise, the measurement gap S2 becomes smaller, and the adjustment gap S1 will also become smaller. At this time, the rail vehicle can be normally driven by reducing the electromagnetic force of the electromagnetic guide 2 to readjust the adjustment gap S1. It is noted that in embodiments where the electromagnetic guide 2 and the sensor element 3 are arranged on only one side of the bogie, it is necessary to keep the electromagnetic guide 2 magnetic at all times.
According to another embodiment of the present disclosure, the electromagnetic guide device 2 includes two electromagnetic guide devices arranged at intervals in the vehicle width direction to form an electromagnetic guide group, and the sensor element 3 is arranged in correspondence to at least one of the two electromagnetic guide devices 2. In this embodiment, the two electromagnetic guides 2 do not necessarily have to be kept magnetized at all times, but may be energized to have magnetism depending on the result of detection by the sensor element 3. Compare in the implementation mode that only one side set up electromagnetic guiding device 2 of bogie, all set up electromagnetic guiding device 2 in the both sides of bogie and can further improve the precision and the dynamics of rail vehicle direction, the reaction is rapider and accurate. Furthermore, the sensor element 3 may still be provided only on one side, i.e. the electromagnetic guides 2 on both sides can be adjusted simultaneously only according to the detection result of the sensor element 3 on one side, or both electromagnetic guides 2 on both sides are provided with the sensor element 3 correspondingly, in order to improve the accuracy of detection and adjustment.
In order to achieve the purpose of guiding in the process of bidirectional (front-back) running of the railway vehicle, the electromagnetic guiding groups comprise two groups which are arranged at intervals along the running direction of the railway vehicle. Taking fig. 3 as an example, when the rail vehicle travels forward (upward in fig. 3), it is guided by the electromagnetic guiding devices 2-1 and 2-2, respectively, and when the rail vehicle travels backward (downward in fig. 3), it is guided by the electromagnetic guiding devices 2-3 and 2-4, respectively. In the two sets of electromagnetic guiding sets, one sensing element 3 may be provided for each set, or as in the embodiment shown in fig. 3, one sensing element 3 may be provided for each electromagnetic guiding device 2.
The sensor element 3 and the electromagnetic guide 2 are arranged such that the measuring gap S2 and the adjusting gap S1 have the same change or a linear relationship of the change, so that a control element (not shown) of the rail vehicle can calculate the change of the adjusting gap S1 or the offset of the electromagnetic guide 2 from the change of the measuring gap S2 in order to further adjust the electromagnetic guide 2.
Compared with the nonlinear variable quantity, the linear variable quantity is easier to convert, and the control precision and speed can be improved. In addition, the measurement gap S2 and the adjustment gap S1 may be configured to have the same variation, and in this case, the variation of the measurement gap S2 is the variation of the adjustment gap S1 without conversion. The relationship between the measured gap S2 and the variation of the adjusted gap S1 can be realized by the design of the structure, for example, the electromagnetic guide 2 and the sensor element 3 can be arranged on the same rigid component (for example, the connecting frame 44 in the following embodiments) to realize the same variation.
Further, the electromagnetic guide 2 may be configured to include a core 21 coated with an insulating material and an electromagnet winding 22 wound outside the core 21. This structure has a higher magnetic force than the electromagnet of the conventional elevator structure.
With continued reference to fig. 1 to 4, the bogie of the present disclosure further comprises a steering mechanism arranged between the running wheels 1 and the electromagnetic guiding device 2, i.e. the driving connection between the running wheels 1 and the electromagnetic guiding device 2 is achieved by the steering mechanism. Specifically, the steering mechanism includes: the electromagnetic guide device 2 and the sensing element 3 are arranged at the bottom of the slewing bearing assembly 41, the steering rod 42 is connected with the slewing bearing assembly 41, one end of the steering straight arm 43 is connected with the walking wheels 1, and the other end of the steering straight arm 43 is connected with the slewing bearing assembly 41 through the steering rod 42. Alternatively, the electromagnetic guide 2 and the sensor element 3 are connected to the slewing bearing assembly 41 by a connecting frame 44, and the electromagnetic guide 2 and the sensor element 3 are mounted on the connecting frame 44.
The drive train of the above-described steering mechanism can be described as: the electromagnetic guide device 2 adjusts an adjusting gap S1 between the electromagnetic guide device and the beam guide surface 52 through the change of the magnetic force, and the slewing bearing assembly 41 rotates, the rotation of the slewing bearing assembly 41 drives the steering rod 42 and further drives the steering straight arm 43 to swing, and the traveling wheels 1 deflect along with the swing of the steering straight arm 43.
With continued reference to fig. 1 to 4, the axle housing 45 is used as a load-bearing body, two ends of the axle housing 45 are connected to axle housing yokes 46, a mounting seat 48 is arranged at a neck portion where the axle housing yokes 46 are connected to the axle housing 45, the axle housing yokes 46 are connected to a knuckle yoke 47 through a kingpin, and the knuckle yoke 47 is connected to the traveling wheel 1 and deflects with the kingpin as a rotation center to achieve steering. One ends of a left steering straight arm 431 and a right steering straight arm 432 are respectively arranged on a lower fork arm of a steering knuckle fork 47, the other ends of the left steering straight arm 431 and the right steering straight arm 432 are respectively connected with joint ball bearings at two ends of a steering tie rod 422, a mounting hole in the middle of the left steering straight arm 431 is connected with the joint ball bearing at one end of a steering drag rod 421, and the joint ball bearing at the other end of the steering drag rod 421 is connected with a connecting bracket 441.
Slewing bearing 412 is configured as a large disc-shaped bearing mainly used for slewing a large member, wherein an inner ring of slewing bearing 412 is connected to slewing bearing mounting base 411, and an outer ring of slewing bearing 412 is connected to connecting bracket 441. The bottom of the mounting seat 48 is connected with the two sides of the pivoting support mounting seat 411 through bolts. Thus, the connecting frame 44 can have the slewing center as the slewing center and push the steering straight arm 43 to deflect.
When the railway vehicle runs on a straight section, the adjustment gap S1 between the electromagnetic steering device 2 and the beam guide surface 52 is kept unchanged theoretically, but in practice, the adjustment gap S1 has small fluctuation, the sensing element 3 measures the change of the measurement gap S2 between the measurement sensing element 3 and the beam guide surface 52, and the electromagnetic force of the electromagnetic steering device 2 is changed by controlling the current of the electromagnet winding 22 according to the linear relation of the change between the adjustment gap S1 and the measurement gap S2, so that the bogie is ensured not to deflect, and the railway vehicle runs on a straight line.
When the rail vehicle travels in a curved section, as shown in fig. 3, taking the rail vehicle turning to the right as an example, the sensing element 3-1 detects that the measurement gap S2 is reduced, and the sensing element 3-2 detects that the measurement gap S2 is increased, and at this time, the adjustment gap S1 between the electromagnetic guide 2 and the beam guide surface 52 is also changed accordingly. To restore the adjustment gap S1 of both sides to a preset value or range, the electromagnetic force of the electromagnetic guide 2-2 is increased and the electromagnetic force of the electromagnetic guide 2-1 is decreased. Since only the sensing elements 3-1 and 3-2 are able to detect the change of the measuring gap S2 at the instant of entering a bend, only the electromagnetic force of the electromagnetic guiding means 2-1 and 2-2 has to be adjusted, when the resultant force of the connecting frame 44 is to the right. Whereas the sensor elements 3-3 and 3-4 do not detect a change in the measurement gap S2, so that the electromagnetic force of the electromagnetic guiding means 2-3 and 2-4 remains unchanged, where the forces are balanced.
The connecting frame 44 deflects rightwards, the guiding force is transmitted to the left steering straight arm 431 through the steering straight pull rod 421, the left steering straight arm 431 pushes the left running wheel 1 to deflect rightwards, meanwhile, the steering force is transmitted to the right steering straight arm 432 through the steering tie rod 422, and the right running wheel 1 is pushed to deflect rightwards, so that the railway vehicle completes right steering. The working principle is the same when the vehicle turns left, and the description is omitted. In the traveling direction of the railway vehicle, the steering can be completed by depending on the electromagnetic guide groups 2-1 and 2-2 on one side, and at the moment, the electromagnetic guide groups 2-3 and 2-4 on the other side and the corresponding sensing elements 3-1 and 3-2 stop working. When the rail vehicle runs in reverse, the electromagnetic guidance groups 2-3, 2-4 and the corresponding sensor elements 3-3, 3-4 are activated.
A second object of the present disclosure is to provide a railway vehicle comprising the bogies of any one of the above embodiments, and having all the advantages of these bogies, which will not be described herein.
The third purpose of the present disclosure is to provide a rail transportation system, which includes a rail beam 5 and a rail vehicle, wherein the rail beam 5 includes two running rails spaced apart along the width direction of the vehicle, and each running rail has a beam top surface 51 for bearing running wheels 1 and a beam guide surface 52 for cooperating with an electromagnetic guide device 2 to realize guidance. The rail vehicle is the rail vehicle described above. Optionally, the track beam 5 is a straddle-type track beam having a concave shape as a whole. Straddle-type track beams are beam bodies well known in the art and their construction will not be described in detail here.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A bogie, characterized in that the bogie comprises:
the walking wheel (1) comprises two walking wheels which are arranged at intervals along the width direction of the vehicle;
at least one electromagnetic guide device (2) arranged between the two running wheels (1) and in transmission connection with the running wheels (1), wherein an adjusting gap (S1) is formed between the electromagnetic guide device (2) and the beam guide surface (52);
a sensor element (3) arranged in front of the electromagnetic guide (2) in the direction of travel of the rail vehicle for measuring a change in a measurement gap (S2) between the sensor element (3) and the beam guide surface (52);
in response to a change in the measurement gap (S2) between the sensor element (3) and the beam guide surface (52), the electromagnetic guide device (2) is able to adjust the adjustment gap (S1) with the beam guide surface (52) and to force the running wheels (1) to deflect.
2. The bogie according to claim 1, wherein the electromagnetic guide device (2) comprises two electromagnetic guide devices arranged at intervals in the vehicle width direction to form an electromagnetic guide group, and at least one of the two electromagnetic guide devices (2) is provided with the sensor element (3) correspondingly.
3. The bogie of claim 2, wherein the electromagnetic guide sets comprise two sets spaced apart in the direction of travel of the rail vehicle.
4. The bogie according to claim 1, wherein the sensing element (3) and the electromagnetic guiding device (2) are configured such that the measurement gap (S2) and the adjustment gap (S1) have the same amount of change or are in a linear relationship.
5. A bogie as claimed in claim 1, characterised in that the electromagnetic guide means (2) comprises an iron core (21) coated with an insulating material and an electromagnet winding (22) wound around the outside of the iron core (21).
6. A bogie as claimed in any one of claims 1 to 5, characterised in that it further comprises a steering mechanism arranged between the running wheels (1) and the electromagnetic guiding device (2), said steering mechanism comprising: slewing bearing subassembly (41), steering column (42) and turn to straight arm (43), electromagnetic guiding device (2) with sensing element (3) are installed the bottom of slewing bearing subassembly (41), steering column (42) with slewing bearing subassembly (41) is connected, turn to the one end of straight arm (43) with walk the wheel (1) and be connected, turn to the other end of straight arm (43) through steering column (42) with slewing bearing subassembly (41) is connected.
7. The bogie according to claim 6, wherein the electromagnetic guide device (2) and the sensing element (3) are connected to the slewing bearing assembly (41) by a connecting frame (44), the connecting frame (44) comprising a connecting bracket (441) and a mounting bracket (442), the connecting bracket (441) being adapted to be connected to the slewing bearing assembly (41), the mounting bracket (442) being fixedly arranged on the connecting bracket (441), the electromagnetic guide device (2) and the sensing element (3) being arranged on the mounting bracket (442).
8. A rail vehicle, characterized in that it comprises a bogie according to any one of claims 1-7.
9. A rail transit system comprising a rail beam (5) and a rail vehicle, characterized in that the rail beam (5) comprises two running rails spaced apart in the width direction of the vehicle, and the rail vehicle is according to claim 8.
10. The rail transit system according to claim 9, characterized in that the rail beam (5) is a straddle-type rail beam having a generally concave shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122038338.4U CN215752398U (en) | 2021-08-26 | 2021-08-26 | Bogie, rail vehicle and rail transit system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122038338.4U CN215752398U (en) | 2021-08-26 | 2021-08-26 | Bogie, rail vehicle and rail transit system |
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| CN215752398U true CN215752398U (en) | 2022-02-08 |
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| CN202122038338.4U Active CN215752398U (en) | 2021-08-26 | 2021-08-26 | Bogie, rail vehicle and rail transit system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023198134A1 (en) * | 2022-04-13 | 2023-10-19 | 山东启和云梭物流科技有限公司 | High-speed bus public transport system based on composite specially-shaped flange track |
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2021
- 2021-08-26 CN CN202122038338.4U patent/CN215752398U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023198134A1 (en) * | 2022-04-13 | 2023-10-19 | 山东启和云梭物流科技有限公司 | High-speed bus public transport system based on composite specially-shaped flange track |
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