Disclosure of Invention
The embodiment of the application provides a control method of a truck skirt board of a high-speed train, which can solve the problems that the energy consumption of the operation of the high-speed train is continuously increased and the operation of the train is influenced by snow accumulated in a truck area.
The embodiment of the application provides a control method of a truck apron board of a high-speed train, wherein the state of the apron board comprises a closed state and a fully-opened state, and the control method comprises the following steps:
When the high-speed train is positioned in the snow accumulation area, controlling the skirt board to be in a full-open state;
When the high-speed train is not located in the snow area, controlling the apron board to be in a closed state;
Wherein the truck side of the high speed train is fully exposed to air when the skirt panel is in a fully open condition and fully shielded by the skirt panel when the skirt panel is in a closed condition.
Optionally, the skirt comprises:
a first spool support and a first rail provided on a side surface of a front end plate of the bogie;
the front end plate and the rear end plate are opposite end plates of the bogie;
one end of the scroll is rotatably connected with the first scroll bracket, and the other end of the scroll is rotatably connected with the second scroll bracket;
the rolling motor is arranged on the side wall of the bogie cabin where the bogie is positioned, and an output shaft of the rolling motor is connected with one end of the scroll;
The first side edge of the curtain sheet is positioned in the first guide rail, the second side edge of the curtain sheet is positioned in the second guide rail, and the first side edge and the second side edge are two adjacent side edges of one end of the curtain sheet;
when the apron board is in a fully-opened state, the roller shutter motor drives the roller shutter to roll up the shutter, so that the side face of the bogie is completely exposed to air, and when the apron board is in a closed state, the roller shutter motor drives the roller shutter to roll up the shutter, so that the side face of the bogie is completely shielded by the shutter.
Optionally, the state of the apron board further comprises a half-open state, and when the apron board is in the half-open state, the roller shutter motor drives the roller to roll up the shutter sheet, so that one part of the bogie is shielded by the shutter sheet, and the other part of the bogie is exposed outside the shutter sheet.
Optionally, a first belt motor and a second belt motor are further arranged on the side wall of the bogie cabin, a first synchronous belt pulley is arranged at one end, close to the scroll, of the first guide rail and one end, far away from the scroll, of the second guide rail, a second synchronous belt pulley is arranged at one end, far away from the scroll, of the first guide rail, an output shaft of the first belt motor is connected with a connecting shaft of the first synchronous belt pulley on the first guide rail, and an output shaft of the second belt motor is connected with a connecting shaft of the first synchronous belt pulley on the second guide rail;
The first guide rail and the second guide rail all include upper guide rail groove and lower floor guide rail groove, and the first side of curtain piece is located the lower floor guide rail inslot of first guide rail, and the second side of curtain piece is located the lower floor guide rail inslot of second guide rail, and first synchronous pulley on the first guide rail is connected with the first end of first belt, and the second synchronous pulley on the first guide rail is walked around to the second end of first belt, is connected with the other end of curtain piece, and first synchronous pulley on the second guide rail is connected with the first end of second belt, and the second synchronous pulley on the second guide rail is walked around to the second end of second belt, is connected with the other end of curtain piece.
Optionally, the second end of the first belt and the second end of the second belt are both provided with a fixing block, and the fixing block is connected with the other end of the curtain sheet.
Optionally, the lower layer guide rail grooves of the first guide rail and the second guide rail are respectively provided with a retainer, the retainers are provided with rollers, the first side edge of the curtain sheet is positioned on the rollers in the first guide rail, and the second side edge of the curtain sheet is positioned on the rollers in the second guide rail.
Optionally, one end of the reel is rotatably connected to the first reel bracket through a first bearing, and the other end is rotatably connected to the second reel bracket through a second bearing.
The scheme of the application has the following beneficial effects:
in the embodiment of the application, when a high-speed train enters a snow accumulation area, the apron board is controlled to be in a fully-opened state, so that the side face of a bogie of the high-speed train is completely exposed to the air, snow accumulation in the bogie is reduced, the train stably and safely passes through the high-cold snow accumulation area, and meanwhile, when the high-speed train enters a non-snow accumulation area, the apron board is controlled to be in a closed state, so that the side face of the bogie of the high-speed train is completely blocked by the apron board, thereby greatly reducing aerodynamic resistance and reducing train operation energy consumption.
Other advantageous effects of the present application will be described in detail in the detailed description section which follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for controlling a truck skirt panel of a high speed train in accordance with one embodiment of the present application;
FIG. 2 is a schematic view of a skirt panel according to an embodiment of the present application;
FIG. 3 is a schematic view showing a partial structure of a skirt panel according to an embodiment of the present application;
FIG. 4 is a schematic view showing a partial structure of a skirt panel according to an embodiment of the present application;
FIG. 5 is a schematic view of a guide rail of a skirt panel according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a skirt panel according to an embodiment of the present application;
FIG. 7 is a schematic view of a skirt panel in a closed position according to an embodiment of the present application;
FIG. 8 is a schematic view of a skirt panel in a half-open state according to an embodiment of the present application;
FIG. 9 is a schematic view of a skirt panel in a fully open position according to an embodiment of the present application;
FIG. 10 is a schematic diagram illustrating an assembly of a skirt panel and a train according to an embodiment of the present application;
FIG. 11 is a second schematic diagram of an assembly of a skirt panel and a train according to an embodiment of the present application;
FIG. 12 is a schematic diagram of an assembly of a skirt panel and a train according to an embodiment of the present application;
fig. 13 is a schematic diagram showing an assembly of a skirt board and a train according to an embodiment of the present application.
[ Reference numerals description ]
100. Apron board, 20, first guide rail, 201, first belt, 202, second synchronous pulley, 203, fixed block, 204, retainer, 205, roller, 30, second guide rail, 301, second belt motor, 302, second belt, 40, reel, 50, rolling motor, 60, curtain sheet.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, 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.
It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
At present, when a high-speed train passes through a snow area, part of snowflakes rolled up by air flow enter a bogie area, so that the bogie forms snow ice, and the running safety of the train is seriously threatened. Meanwhile, the running speed of the train is continuously increased, and the ratio of aerodynamic resistance in power required for driving the train to move forward is continuously increased, so that the energy consumption of the train is continuously increased.
According to the control method, when a high-speed train enters a snow accumulation area, the skirt board is controlled to be in a full-open state, so that the side face of the bogie of the high-speed train is completely exposed to air, snow accumulation in the bogie is reduced, the train stably and safely passes through a high-cold snow accumulation area, and meanwhile, when the high-speed train enters a non-snow accumulation area, the skirt board is controlled to be in a closed state, the side face of the bogie of the high-speed train is completely blocked by the skirt board, and therefore aerodynamic resistance is greatly reduced, and running energy consumption of the train is reduced.
The control method of the truck skirt board of the high-speed train provided by the application is exemplarily described below with reference to specific embodiments.
As shown in fig. 1, the method for controlling the skirt board of the bogie of the high-speed train provided by the embodiment of the application comprises the following steps:
and 11, controlling the skirt board to be in a fully-opened state when the high-speed train is positioned in the snow area.
In some embodiments of the application, when the skirt board is in a fully opened state, the side face of the bogie of the high-speed train is fully exposed to the air, so that snow accumulated in the bogie is effectively reduced, and the train can smoothly and safely pass through a high-cold snow accumulation area.
And step 12, controlling the apron board to be in a closed state when the high-speed train is not located in the snow area.
In some embodiments of the application, the truck sides are completely shielded by the skirt panels when the skirt panels are in a closed condition, thereby greatly reducing aerodynamic drag and reducing train operation energy consumption.
It should be noted that, in some embodiments of the present application, the steps 11 and 12 do not have a strict sequence, but the skirt board is controlled to be in a fully open state when the high-speed train enters the snow area (such as a alpine region), and the skirt board is controlled to be in a closed state when the high-speed train enters the non-snow area (such as a non-alpine region), so that the running resistance of the train is effectively reduced, the energy consumption of the train is reduced, and the problem that the running of the train is affected due to the snow in the bogie region is improved.
In some embodiments of the present application, the status of the skirt panel may be in a half-open state, in which a part of the bogie is shielded by the skirt panel and another part is exposed to the skirt panel, in addition to the fully-open state and the closed state, according to actual needs, so as to facilitate maintenance of the bogie.
The structure of the above-described skirt panel will be exemplarily described with reference to specific embodiments.
As shown in fig. 2 to 13, the above-mentioned skirt panel 100 includes a first reel bracket, a first rail 20, a second reel bracket, a second rail 30, a reel 40, a roll screen motor 50, and a screen sheet 60.
The first reel bracket and the first guide rail 20 are arranged on the side surface of the front end plate of the bogie, the second reel bracket and the second guide rail 30 are arranged on the side surface of the rear end plate of the bogie (the front end plate and the rear end plate are two opposite end plates of the bogie), one end of the reel 40 is rotatably connected with the first reel bracket, the other end of the reel 40 is rotatably connected with the second reel bracket, the rolling motor 50 is arranged on the side wall of a bogie cabin where the bogie is arranged, an output shaft of the rolling motor 50 is connected with one end of the reel 40, one end of the curtain sheet 60 is connected with the reel 40, a first side edge of the curtain sheet 60 is arranged in the first guide rail 20, a second side edge of the curtain sheet 60 (the first side edge and the second side edge are two opposite side edges of one end of the curtain sheet 60, and the first side edge and the second side edge are two opposite side edges of the curtain sheet 60) are arranged in the second guide rail 30.
In some embodiments of the present application, the roller shutter motor 50 is mainly used to rotate the roller 40 to wind/unwind the shutter 60 from the roller 40. Specifically, when the skirt panel 100 is in the fully opened state as shown in fig. 9, the roller shutter motor 50 drives the roller 40 to retract the roller shutter 60 as shown in fig. 12, and when the skirt panel 100 is in the half opened state as shown in fig. 8, the roller shutter motor 50 drives the roller 40 to retract the roller shutter 60 as shown in fig. 11, and a part of the roller shutter is shielded by the shutter 60 and the other part is exposed to the outside of the shutter 60, and when the skirt panel 100 is in the closed state as shown in fig. 7, the roller shutter motor 50 drives the roller 40 to unwind the shutter 60, and as shown in fig. 10 and 13, the side of the bogie is completely shielded by the shutter 60. It should be noted that, the power end of the roller shutter motor 50 may be connected to a driving power source on the train, so as to ensure the power supply stability of the roller shutter motor 50.
In some embodiments of the present application, the first rail 20 is positioned against the side edge of the front end panel of the truck and the second rail 30 is positioned against the side edge of the rear end panel of the truck, such that the roller 40 guides the curtain 60 along the truck cabin side edge as the curtain 60 is wound/unwound, allowing the roller 40 to smoothly wind/unwind the curtain 60.
In some embodiments of the present application, one end of the roller 40 may be rotatably coupled to the first roller bracket via a first bearing, and the other end may be rotatably coupled to the second roller bracket via a second bearing, thereby facilitating rotation of the roller 40 to wind/unwind the curtain 60.
In some embodiments of the present application, as shown in fig. 3 and 4, a first belt motor and a second belt motor 301 are further disposed on the side wall of the bogie cabin, one end of the first guide rail 20 and one end of the second guide rail 30, which are close to the reel 40, are respectively provided with a first synchronous pulley, one end of the first guide rail 20 and one end of the second guide rail 30, which are far away from the reel 40, are respectively provided with a second synchronous pulley 202, an output shaft of the first belt motor is connected with a connecting shaft of the first synchronous pulley on the first guide rail 20, and an output shaft of the second belt motor 301 is connected with a connecting shaft of the first synchronous pulley on the second guide rail 30.
The first guide rail 20 and the second guide rail 30 each include an upper guide rail groove and a lower guide rail groove, the first side edge of the curtain sheet 60 is located in the lower guide rail groove of the first guide rail 20, the second side edge of the curtain sheet 60 is located in the lower guide rail groove of the second guide rail 30, the first synchronous pulley on the first guide rail 20 is connected with the first end of the first belt 201, the second end of the first belt 201 bypasses the second synchronous pulley 202 on the first guide rail 20 and is connected with the other end of the curtain sheet 60 (i.e. the last stage of the curtain sheet 60), the first synchronous pulley on the second guide rail 30 is connected with the first end of the second belt 302, and the second end of the second belt 302 bypasses the second synchronous pulley 202 on the second guide rail 30 and is connected with the other end of the curtain sheet 60 (i.e. the last stage of the curtain sheet 60).
The first belt motor is mainly used to drive the first and second synchronous pulleys 202 on the first rail 20 to rotate, and the second belt motor 301 is mainly used to drive the first and second synchronous pulleys 202 on the second rail 30 to rotate, so that the first and second belts 201 and 302 can efficiently guide the curtain 60 to move along the side edge of the bogie compartment in the curved first and second rails 20 and 30, and further improve the smoothness of the winding/unwinding of the curtain 60 by the winding shaft 40.
It should be further noted that, the power supply ends of the first belt motor and the second belt motor 301 may be connected to a driving power supply on the train, so as to ensure the power supply stability of the first belt motor and the second belt motor 301. And the first and second belt motors 301 can work in cooperation with the shutter motor 50 to wind/unwind the shutter sheet 60 from the reel 40. It will be understood, of course, that the first belt motor, the second belt motor 301 and the roller shutter motor 50 may be controlled to stop at any time when the shutter sheet 60 is wound/unwound, thereby allowing the skirt panel 100 to be in various states.
In some embodiments of the present application, in order to facilitate connection with the other end of the curtain sheet 60, as shown in fig. 4, the second end of the first belt 201 and the second end of the second belt 302 are provided with a fixing block 203, and the fixing block 203 is connected with the other end of the curtain sheet 60.
It should be noted that, the fixing block 203 on the first belt 201 can move along with the first belt 201, and the fixing block 203 on the second belt 302 can move along with the second belt 302, so that the first belt 201 and the second belt 302 can efficiently guide the curtain 60 to move along the side edge of the bogie compartment in the curved first guide rail 20 and the second guide rail 30, and the smoothness of the rolling/unrolling curtain 60 of the rolling shaft 40 is improved.
In some embodiments of the present application, as shown in fig. 5, the lower guide grooves of the first guide rail 20 and the second guide rail 30 are provided with a cage 204, the cage 204 is provided with rollers 205, a first side edge of the curtain 60 is located on the rollers 205 in the first guide rail 20, and a second side edge of the curtain 60 is located on the rollers 205 in the second guide rail 30, so that the movement of the curtain 60 is smoother.
It should be noted that the cage 204 may partially encapsulate the rollers 205 to isolate, guide and retain the rollers 205 within the corresponding guide tracks.
The effects of the above control method are exemplarily described below in conjunction with simulation and experimental data.
Through wind tunnel test and numerical simulation verification, the snow mass of the bogie area and the aerodynamic resistance of the whole train in the apron board three states are shown in tables 1 and 2. The pneumatic resistance can be reduced by 9.5% when the train runs in the snow-free area and the apron board provided by the embodiment of the application is in the closed state, and the snow mass can be reduced by 13.3% when the train runs in the snow-free area and the apron board provided by the embodiment of the application is in the fully open state. Therefore, the control method provided by the embodiment of the application can effectively reduce the running resistance of the train, reduce the energy consumption of the train and improve the problem that the running of the train is influenced by snow accumulated in the bogie area.
TABLE 1
|
Full on state |
Half-open state |
Closed state |
Pneumatic resistance coefficient |
0.63 |
0.60 |
0.57 |
Percent reduction |
- |
4.8% |
9.5% |
TABLE 2
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.