CN113696914A - Rail vehicle actuating mechanism - Google Patents
Rail vehicle actuating mechanism Download PDFInfo
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- CN113696914A CN113696914A CN202111151307.8A CN202111151307A CN113696914A CN 113696914 A CN113696914 A CN 113696914A CN 202111151307 A CN202111151307 A CN 202111151307A CN 113696914 A CN113696914 A CN 113696914A
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- electric motor
- linear electric
- rail vehicle
- bogie
- linear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
Abstract
The application discloses rail vehicle actuating mechanism, including non-power bogie (1) and linear electric motor, non-power bogie (1) sets up on rail vehicle's automobile body (4), linear electric motor includes linear electric motor stator (2) and linear electric motor active cell (3), linear electric motor stator (2) lay along track (5), linear electric motor active cell (3) set up on automobile body (4), linear electric motor active cell (3) with linear electric motor stator (2) contact cooperation is advanced along track (5) with driving automobile body (4). This rail vehicle actuating mechanism adopts non-power bogie and linear electric motor matched with drive mode, can effectively alleviate unsprung mass, improves whole car dynamic performance to easily reform transform current track circuit, reform transform with low costs, effectively promote rail vehicle's functioning speed.
Description
Technical Field
The application relates to the technical field of rail transit, in particular to a rail vehicle driving mechanism.
Background
In recent years, rail transit is rapidly developed and presents more types, the rail transit is not only distributed over long-distance land transportation, but also widely applied to urban public transportation at medium and short distances, the engineering application of 400km/h motor train units is realized at present, but the development of 400km/h to 600km/h and above speed levels is difficult, a rail vehicle in the prior art usually adopts a power bogie traction motor and a gear transmission device, the weight of a vehicle body is borne by a bogie, a power mechanism and a brake mechanism for driving the vehicle are also arranged on the bogie, the structure under the bogie-system spring is difficult to realize light weight, the unsprung weight is difficult to effectively reduce, the running performance of the bogie is influenced, the mechanical performance requirement and the manufacturing process requirement of an axle are continuously improved along with the speed increase, the manufacturing cost of the bogie is higher and higher along with the running speed increase of the rail vehicle, the wheel-rail adhesion coefficient is reduced, the traction force and the braking force of the train are limited by the wheel-rail adhesion, the speed of the train is difficult to increase, and the dynamic performance of the whole train is difficult to improve.
In summary, how to effectively solve the problems that in the prior art, a power bogie traction motor and a gear transmission device are generally adopted by a railway vehicle, the light weight is difficult to realize, the unsprung mass is difficult to lighten, the dynamic performance of the whole vehicle is difficult to improve and the like are problems which are urgently needed to be solved by technical personnel in the field at present.
Content of application
The utility model provides a rail vehicle actuating mechanism, this rail vehicle actuating mechanism solve among the prior art rail vehicle and adopt power bogie traction motor and gear drive usually effectively, are difficult to realize the lightweight, and unsprung mass is difficult to alleviate, is difficult to improve whole car dynamic performance scheduling problem.
In order to solve the technical problem, the application provides the following technical scheme:
the utility model provides a rail vehicle actuating mechanism, includes non-power bogie and linear electric motor, non-power bogie sets up on rail vehicle's automobile body, linear electric motor includes linear electric motor stator and linear electric motor active cell, the linear electric motor stator lays along the track, the linear electric motor active cell sets up on the automobile body, the linear electric motor active cell with the contact cooperation of linear electric motor stator is in order to drive the automobile body and advance along the track.
Preferably, the linear motor rotor is connected to the vehicle body through a flexibly adjustable suspension mechanism.
Preferably, the suspension mechanism is controlled by a pneumatic mechanism.
Preferably, the linear motor rotor is provided with a plurality of groups on each car body at intervals along the track direction.
Preferably, all the sections of the car bodies of the railway vehicle are provided with the non-power bogie, and all the sections of the car bodies of the railway vehicle are provided with the linear motor movers.
Preferably, the linear motor is braked by regenerative braking or/and a braking device arranged on a non-power bogie.
The railway vehicle driving mechanism provided by the application cancels a traditional bogie traction motor and a gear transmission device, adopts a motive power mechanism of a linear motor to change the running power of the railway vehicle from rotary adhesion driving into motor linear driving, improves the climbing capability of the railway vehicle, greatly improves the adaptability of the railway vehicle to the terrain, directly adopts a non-power bogie on a vehicle body, and a power mechanism for driving the railway vehicle to run is independent outside the non-power bogie, and has the advantages of simple structure, convenient implementation and low cost, and the non-power bogie is not provided with the power mechanism, thereby realizing the light weight of a bogie-system unsprung structure, effectively reducing unsprung weight, improving the running performance of the bogie, improving the dynamic performance of the whole vehicle, laying a foundation for further speed improvement, and simplifying the structure and the stress environment of a bogie wheelset device, reduce the mechanical properties requirement and the manufacturing process requirement of axletree, non-power bogie in this application only is used for bearing the weight of automobile body and makes the automobile body advance along the track direction, do not play power drive's effect, the linear electric motor's that drives rail vehicle and advance linear electric motor active cell sets up on the automobile body, also be convenient for maintain when easy to carry out, easily reform transform current track circuit, need not to carry out complicated upgrading transformation to traditional rail vehicle's bogie, need not to increase motor mechanism and establish on the bogie, only need lay the linear electric motor stator on existing track, then set up on rail vehicle's automobile body linear electric motor active cell can, easy to carry out the transformation, and the transformation is with low costs.
Compared with the prior art, this application advantage lies in:
the railway vehicle driving mechanism provided by the application cancels a traditional bogie traction motor and a gear transmission device, realizes the light weight of a bogie-system unsprung structure, and effectively reduces unsprung weight, so that the running performance of the bogie is improved, and the dynamic performance of the whole vehicle is improved; the traction of the linear motor avoids the traction adhesion limitation under the action of the wheel rail, improves the traction capacity of the train and lays a foundation for further speed increase; the combination of multiple braking modes is adopted, the brake adhesion limitation of the train in a high-speed state is avoided, and the train braking capacity is improved; the track traffic transportation system is easy to reform the existing track line, the reformation cost is low, the linear motor stator is laid on the existing track, and then the linear motor rotor is arranged on the vehicle body of the track vehicle, so that the cost is greatly lower than that of a newly-built magnetic suspension line, and the track traffic transportation system with higher speed grade is possibly developed.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a rail vehicle driving mechanism according to an embodiment of the present application.
The drawings are numbered as follows:
the device comprises a non-power bogie 1, a linear motor stator 2, a linear motor rotor 3, a vehicle body 4, a track 5 and a suspension mechanism 6.
Detailed Description
The core of this application is to provide a rail vehicle actuating mechanism, and this rail vehicle actuating mechanism adopts non-power bogie and linear electric motor matched with drive mode, can effectively alleviate unsprung mass, improves whole car dynamics performance to easily reform transform current track circuit, reform transform with low costs, effectively promote rail vehicle's functioning speed.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a rail vehicle driving mechanism according to an embodiment of the present disclosure.
In a specific embodiment, the rail vehicle driving mechanism provided by the application comprises a non-power bogie 1 and a linear motor, wherein the non-power bogie 1 is arranged on a vehicle body 4 of a rail vehicle, the linear motor comprises a linear motor stator 2 and a linear motor rotor 3, the linear motor stator 2 is laid along a track 5, the linear motor rotor 3 is arranged on the vehicle body 4, and the linear motor rotor 3 is in contact fit with the linear motor stator 2 to drive the vehicle body 4 to move along the track 5.
In the structure, the rail vehicle driving mechanism comprises the non-power bogie 1 and the linear motor, the non-power bogie 1 is arranged on the vehicle body 4 of the rail vehicle, specifically, the non-power bogie 1 is arranged on all the vehicle bodies 4 of the whole rail vehicle, the non-power bogie 1 is respectively arranged at the two ends of the vehicle body 4 along the rail direction, the non-power bogie 1 is matched with the rail 5, the running of the rail vehicle is guided, and the rail vehicle stably runs along the rail 5.
Simultaneously, linear electric motor includes linear electric motor stator 2 and linear electric motor active cell 3, linear electric motor stator 2 lays along track 5, linear electric motor active cell 3 sets up on automobile body 4, linear electric motor active cell 3 advances along track 5 with drive automobile body 4 with linear electric motor stator 2 contact cooperation, easily reform transform current track circuit, lay linear electric motor stator 2 along current track 5 can, it is also convenient simple to reform transform current rail vehicle, only need with linear electric motor active cell 3 connect on automobile body 4 can, need not to add power unit to this bogie that has complicacy again, current rail vehicle can directly follow its current bogie. Because the linear motor mover 3 is connected to the car body 4, the driving force generated by the linear motor during operation directly acts on the car body 4, and then the car body 4 pushes the non-power bogie 1 to move along the track 5, whereas in the conventional technology, a motor mechanism is arranged on the bogie, and the driving force generated by the motor mechanism firstly drives the bogie to move along the track 5, and then the bogie drives the car body 4 to move together.
Compared with the prior art, the bogie has the advantages that a traditional bogie traction motor and a traditional gear transmission device are omitted, the structure of the bogie is effectively simplified, the light weight of a bogie-system unsprung structure is realized, the unsprung weight is effectively reduced, the structure and the stress environment of a bogie wheel set device are simplified, the running performance of the bogie is improved, and the dynamic performance of the whole vehicle is improved; the traction of the linear motor avoids the traction adhesion limitation under the action of the wheel rail, improves the traction capacity of the train and lays a foundation for further speed increase; the track traffic transportation system is easy to reform transform the existing track line, the reformation cost is low, the linear motor stator 2 is laid on the existing track 5, and then the linear motor rotor 3 is arranged on the vehicle body 4 of the track vehicle, so that the cost is greatly lower than that of a newly-built magnetic suspension line, and the track traffic transportation system with higher speed grade is possibly developed.
In order to ensure stable and continuous driving force, the linear motor rotor 3 is connected to the vehicle body 4 through the flexible adjustable suspension mechanism 6, namely the linear motor rotor 3 is in flexible connection with the vehicle body 4, the suspension mechanism 6 adjusts the height condition of the linear motor rotor 3 in real time, so that an air gap is kept uniform between the linear motor rotor 3 and the linear motor stator 2 on the track 5, and therefore the stability and continuity of acting force between the linear motor rotor 3 and the linear motor stator 2 are ensured, and further the stability of the driving force of the rail vehicle is ensured.
Further optimize above-mentioned technical scheme, hang mechanism 6 and adopt pneumatic mechanism control, simple structure, easily realize to the regulation precision is high, thereby ensures that drive power is stable and lasting.
On the basis of the above-mentioned embodiments, the linear motor movers 3 are arranged on each section of the car body 4 at intervals along the direction of the track 5, for example, the linear motor movers 3 are arranged on the car body 4 at intervals along the direction of the track 5, so as to facilitate the improvement of the driving force performance, and meanwhile, when a certain group of linear motor movers 3 fails, other groups of linear motor movers 3 can also maintain to provide normal driving force, so as to ensure that the rail car can continuously travel.
In another more reliable embodiment, on the basis of any one of the above embodiments, all the sections of the car bodies 4 of the rail vehicle are provided with the non-power bogie 1, and all the sections of the car bodies 4 of the rail vehicle are provided with the linear motor rotors 3, so that the unsprung weight of the whole train of rail vehicles is effectively reduced, each section of the car body 4 has excellent bogie running performance, and the dynamic performance of the whole train is improved.
Specifically, the linear motor rotors 3 can be flexibly distributed and arranged according to needs, a reasonable arrangement mode is adopted according to a power distributed traction model, the linear motor rotors 3 can be arranged on all sections of vehicle bodies 4 of the rail vehicle, and all sections of vehicle bodies 4 of the whole rail vehicle are respectively provided with driving power; or a part of the vehicle bodies 4 arranged in the rail vehicle can be provided with driving power. The linear motor rotors 3 are reasonably distributed while the driving force performance is guaranteed to be stable and meet the requirements, for example, a rail vehicle is at least provided with three vehicle bodies, the three vehicle bodies respectively adopt non-power bogies 1, and the three vehicle bodies are respectively provided with the linear motor rotors 3; or, the three vehicle bodies respectively adopt the non-power bogie 1, wherein the vehicle bodies 4 at two ends are respectively provided with the linear motor rotor 3 or only the vehicle body 4 in the middle is provided with the linear motor rotor 3, and the arrangement can be specifically carried out according to actual conditions.
It should be noted that the linear motor braking mode can adopt a composite braking mode matched with various braking modes, and can be a combination of electric braking and friction braking, the electric braking comprises regenerative braking and resistance braking, and the composite braking mode combining different braking modes is adopted, so that the brake adhesion limitation of the train in a high-speed state is avoided, the braking capability is improved, the electric energy can be recycled by performing regenerative braking through the linear motor, the energy is saved, the pollution to the environment during braking is reduced, and the linear motor is basically free of abrasion.
This embodiment adopts linear electric motor to carry out regenerative braking and the last arresting gear matched with composite braking mode that sets up of non-power bogie 1, the arresting gear who sets up on the non-power bogie 1 specifically adopts brake shoe braking, disc brake etc, change kinetic energy into heat through the friction mode and give off to the air, linear electric motor carries out regenerative braking and then turns into kinetic energy the electric energy, other loads that can supply rail vehicle use or retrieve and be used for the drive to go on, reduce the energy consumption, the reduction is to environmental pollution, avoid the braking under the high speed state of train to adhere the restriction, improve train braking capacity.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The rail vehicle drive mechanism provided by the present application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a rail vehicle actuating mechanism, its characterized in that includes non-power bogie (1) and linear electric motor, non-power bogie (1) sets up on rail vehicle's automobile body (4), linear electric motor includes linear electric motor stator (2) and linear electric motor active cell (3), linear electric motor stator (2) lay along track (5), linear electric motor active cell (3) set up on automobile body (4), linear electric motor active cell (3) with linear electric motor stator (2) contact cooperation is in order to drive automobile body (4) to advance along track (5).
2. A rail vehicle drive according to claim 1, characterized in that the linear motor mover (3) is connected to the vehicle body (4) by means of a flexibly adjustable suspension means (6).
3. A rail vehicle drive mechanism according to claim 2, characterized in that the suspension means (6) are controlled pneumatically.
4. The rail vehicle drive as claimed in claim 1, characterized in that the linear motor mover (3) is arranged on each car body (4) at intervals in groups along the direction of the rail (5).
5. The rail vehicle drive mechanism according to any one of claims 1 to 4, characterized in that all segments (4) of the rail vehicle are provided with the non-powered bogie (1), and all segments (4) of the rail vehicle are provided with the linear motor mover (3).
6. Rail vehicle drive mechanism according to any of claims 1 to 4, characterized in that the linear electric motor is braked by regenerative braking or/and a braking device provided on the non-powered bogie (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151307.8A CN113696914A (en) | 2021-09-29 | 2021-09-29 | Rail vehicle actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151307.8A CN113696914A (en) | 2021-09-29 | 2021-09-29 | Rail vehicle actuating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN113696914A true CN113696914A (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111151307.8A Pending CN113696914A (en) | 2021-09-29 | 2021-09-29 | Rail vehicle actuating mechanism |
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| Country | Link |
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| CN (1) | CN113696914A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228502A (en) * | 2022-01-28 | 2022-03-25 | 同济大学 | Linear driving vehicle system based on wheel support |
-
2021
- 2021-09-29 CN CN202111151307.8A patent/CN113696914A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228502A (en) * | 2022-01-28 | 2022-03-25 | 同济大学 | Linear driving vehicle system based on wheel support |
| CN114228502B (en) * | 2022-01-28 | 2023-11-24 | 同济大学 | Linear driving vehicle system based on wheel support |
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