Train air blowing mechanism, train and train control method

Abstract

The present invention specifically discloses a train blowing mechanism, a train and a train control method, and belongs to the field of pneumatic control technology. Among them, the train blowing mechanism includes: a base, a rotating seat, a first driving module and an injection device, the interior of the base is provided with an inner cavity; the rotating seat is arranged in the inner cavity, and the interior of the rotating seat is provided with an air blowing channel; the first driving module is connected to the rotating seat, and can drive the rotating seat to rotate relative to the base; the injection device is connected to the base, and the injection device includes a mounting seat, a driving member, a second driving module and a plurality of blades, and the plurality of blades are arranged at intervals along the circumference of the mounting seat to enclose and form an air blowing hole, and the air blowing hole is connected to the air blowing channel, and the driving member is respectively connected to the plurality of blades, and the second driving module can drive the driving member to drive the plurality of blades to deflect, so as to adjust the opening of the air blowing hole. The present invention can dynamically adjust the injection direction, injection flow rate and injection pressure of the airflow according to the real-time situation, and accurately offset the influence of the crosswind on the train.

Description

Technical Field

[0001] The present invention relates to the technical field of pneumatic control, and in particular to a train air blowing mechanism, a train and a train control method. Background Art

[0002] In a crosswind environment, the aerodynamic performance of a high-speed train will be greatly deteriorated, and the aerodynamic lateral force and aerodynamic lift of the train will increase sharply. The combined effect of the two may cause the train to overturn. The existing methods to deal with crosswind environments mainly include establishing a strong wind monitoring system, determining the safe operation limit of the train, optimizing the aerodynamic shape of the train, and building windbreaks. However, these methods are all preventive measures and cannot stabilize the train according to the real-time situation. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a train blowing mechanism that can offset the influence of the train in a crosswind formation, thereby stabilizing the train according to actual conditions and improving the stability and safety of the train.

[0004] The present invention also provides a train having the above train air blowing mechanism.

[0005] The present invention also provides a train control method applied to the above train.

[0006] According to a first aspect of the present invention, a train air blowing mechanism is provided, comprising: a base, a rotating seat, a first driving module and an air jet device, wherein an inner cavity is provided inside the base; the rotating seat is arranged in the inner cavity, and an air blowing channel is provided inside the rotating seat; the first driving module is connected to the rotating seat, and can drive the rotating seat to rotate relative to the base; the air jet device is connected to the base, and the air jet device comprises a mounting seat, a driving member, a second driving module and a plurality of blades, wherein the plurality of blades are arranged at intervals along the circumference of the mounting seat to surround and form an air blowing hole, the air blowing hole is connected to the air blowing channel, the driving member is respectively connected to the plurality of blades, and the second driving module can drive the driving member to drive the plurality of blades to deflect so as to adjust the opening of the air blowing hole.

[0007] A train air blowing mechanism according to an embodiment of the present invention has at least the following beneficial effects:

[0008] In an embodiment of the present invention, a blowing channel is arranged inside the rotating seat, and air flow is sprayed to the outside through the blowing channel to offset the force of crosswind; the rotating seat is arranged in the inner cavity of the base, and is driven by the first driving module, so that the rotating seat can rotate relative to the base, thereby being able to adjust the direction of the air flow sprayed by the rotating seat; the jet device includes a mounting seat, a driving member, a second driving module and a plurality of blades, and the plurality of blades are arranged to form a blowing hole connected to the blowing channel; driven by the second driving module, the driving member can drive the plurality of blades to deflect to adjust the opening of the blowing hole, and adjust the flow rate and air pressure of the jetted air flow by adjusting the aperture of the blowing hole, so that the train blowing mechanism can dynamically adjust the jet direction, jet flow rate and jet pressure of the air flow according to the real-time situation, accurately offset the influence of crosswind on the train, and thus significantly improve the stability of the train during operation, so that the train can maintain stable operation under various wind conditions, and reduce the risk of train overturning.

[0009] According to some embodiments of the present invention, the outer peripheral wall of the rotating seat is a hemispherical surface, and the inner wall of the inner cavity is a curved surface matching the hemispherical surface.

[0010] According to some embodiments of the present invention, the inner wall of the inner cavity and the outer peripheral wall of the rotating seat are spaced apart, and the train blowing mechanism also includes a plurality of rolling assemblies arranged between the inner wall of the inner cavity and the outer peripheral wall of the rotating seat, and the plurality of rolling assemblies are spaced apart on the outer peripheral wall of the rotating seat, and the rolling assemblies include a bearing seat and a ball, the bearing seat is fixedly connected to the rotating seat, and the ball is mounted on the bearing seat and rollingly connected to the inner wall of the inner cavity.

[0011] According to some embodiments of the present invention, an extension portion is formed on an end of the rotating seat facing away from the jet device, and the first drive module includes a first drive component and a second drive component, and the first drive component and the second drive component respectively include a connecting piece, a bracket and a screw, the connecting piece is sleeved on the extension portion, the bracket is connected to the connecting piece, the screw is connected to the base, and is passed through the bracket and threadedly connected to the bracket, the screw of the first drive component is extended along a first direction, and the screw of the second drive component is extended along a second direction, and the first direction and the second direction intersect, and when the screw of the first drive component rotates, it can drive the extension portion to move along the first direction so that the rotating seat swings along the first direction, and when the screw of the second drive component rotates, it can drive the extension portion to move along the second direction so that the rotating seat swings along the second direction.

[0012] According to some embodiments of the present invention, a plurality of guide grooves extending radially along the driving member are provided at one end of the driving member facing the plurality of blades, and the plurality of guide grooves are arranged at circumferential intervals along the driving member. A guide portion is formed on one end of each blade protruding toward the driving member, and the guide portion is slidingly connected to the guide groove in a one-to-one correspondence. The second driving module can drive the driving member to rotate so that the guide portion moves along the guide groove.

[0013] According to some embodiments of the present invention, along the blowing direction of the blowing channel, the cross-sectional area of ​​the blowing channel gradually increases.

[0014] According to a second aspect of the present invention, there is provided a train, comprising the train air blowing mechanism disclosed in the first aspect of the present invention.

[0015] A train according to an embodiment of the present invention has at least the following beneficial effects:

[0016] The train adopts the train stabilization device of the first aspect of the embodiment. The train sets an air blowing channel inside the rotating seat, and sprays air flow to the outside through the air blowing channel to offset the force of the crosswind; the rotating seat is arranged in the inner cavity of the base, and is driven by the first driving module. The rotating seat can rotate relative to the base, so as to adjust the direction of the air flow sprayed by the rotating seat; the jet device includes a mounting seat, a driving member, a second driving module and a plurality of blades. The plurality of blades are arranged to form an air blowing hole connected to the air blowing channel. Driven by the second driving module, the driving member can drive the plurality of blades to deflect to adjust the opening of the air blowing hole. By adjusting the aperture of the air blowing hole, the flow rate and air pressure of the jet air flow are adjusted, so that the train blowing mechanism can dynamically adjust the jet direction, jet flow rate and jet pressure of the air flow according to the real-time situation, accurately offset the influence of the crosswind on the train, and thus significantly improve the stability of the train during operation, so that the train can maintain smooth operation under various wind conditions and reduce the risk of train overturning.

[0017] According to a third aspect of the present invention, a train control method is provided, which is applied to the train disclosed in the second aspect of the present invention, wherein the train further comprises a first sensor and a second sensor, wherein the first sensor is used to detect the wind environment in which the train is located, and the second sensor is used to detect the center of gravity offset of the train, and the control method comprises:

[0018] When the train is in a crosswind area, obtaining a first lateral acceleration of the train and comparing it with a preset threshold;

[0019] When the first lateral acceleration is greater than the preset threshold, the blowing hole is controlled to open to spray airflow to the external environment.

[0020] A train control method according to an embodiment of the present invention has at least the following beneficial effects:

[0021] The embodiment of the present invention obtains the first lateral acceleration of the train and compares it with a preset threshold when the train is in a crosswind area; when the first lateral acceleration is greater than the preset threshold, the air holes are controlled to open to spray airflow to the external environment, thereby realizing the spraying of airflow to the outside according to real-time conditions, thereby offsetting the force of the crosswind, accurately offsetting the impact of the crosswind on the train, and thus significantly improving the stability of the train during operation, so that the train can maintain stable operation under various wind conditions, and reducing the risk of train overturning.

[0022] According to some embodiments of the present invention, the control method further comprises:

[0023] After spraying airflow to the external environment for a preset time, obtaining a second lateral acceleration of the train and comparing it with a preset threshold;

[0024] When the second lateral acceleration is greater than the preset threshold, the rotating seat is controlled to rotate relative to the base to change the spray direction of the airflow, and / or the aperture of the blowing hole is controlled to increase.

[0025] According to some embodiments of the present invention, the control method further comprises:

[0026] After changing the jet direction of the airflow and / or controlling the aperture of the air blowing hole to increase and a preset time has passed, obtaining a third lateral acceleration of the train and comparing it with a preset threshold;

[0027] When the third lateral acceleration is greater than the preset threshold, the rotating base is controlled to rotate relative to the base again, and / or the diameter of the blowing hole is controlled to increase;

[0028] When the third lateral acceleration is less than or equal to the preset threshold, the blowing hole is controlled to be closed.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0031] Figure 1 It is a structural schematic diagram of an embodiment of a train air blowing mechanism of the present invention (first viewing angle);

[0032] Figure 2 An exploded view of an embodiment of a train air blowing mechanism of the present invention;

[0033] Figure 3 A cross-sectional view of an embodiment of a train air blowing mechanism of the present invention;

[0034] Figure 4 It is a structural schematic diagram of a rolling assembly in an embodiment of a train air blowing mechanism of the present invention;

[0035] Figure 5 It is a structural schematic diagram of an embodiment of a train air blowing mechanism of the present invention (second viewing angle);

[0036] Figure 6 It is a structural schematic diagram of a blade and a mounting seat in an embodiment of a train air blowing mechanism of the present invention;

[0037] Figure 7 It is a structural schematic diagram of a driving component in an embodiment of a train air blowing mechanism of the present invention;

[0038] Figure 8 A flow chart of steps of an embodiment of a train control method of the present invention;

[0039] Fig. 9 A flow chart of steps of another train control method embodiment of the present invention;

[0040] Fig.10 The present invention is a flowchart of another train control method embodiment of the present invention.

[0041] Reference numerals:

[0042] Train blowing mechanism 10;

[0043] Base 100; inner cavity 110;

[0044] Rotating seat 200; blowing channel 210; extension portion 220;

[0045] First drive module 300; first drive assembly 310; first connecting member 311; first bracket 312; first lead screw 313; first driver 314; first mounting bracket 315; second drive assembly 320; second connecting member 321; second bracket 322; second lead screw 323; second driver 324; second mounting bracket 325;

[0046] The jet device 400; the mounting seat 410; the driving member 420; the guide groove 421; the tooth portion 422; the blade 440; the guide portion 441; the blowing hole 450;

[0047] Rolling assembly 500; bearing seat 510; ball 520. DETAILED DESCRIPTION

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] In the description of the present invention, it is necessary to understand that descriptions involving orientations, such as up, down, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0051] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0052] Under the strong influence of crosswind, the aerodynamic lateral force and aerodynamic lift on the train will be significantly enhanced. The overturning moment generated by these two acts together on the train, greatly increasing the uncertainty and overturning risk of its operation. At present, the main response strategies for crosswind environment include establishing a strong wind monitoring system, setting limits for safe operation of trains, improving the aerodynamic shape design of trains, and building windbreaks. However, these methods are not only time-consuming and costly, but also lack the ability to flexibly respond to crosswind according to real-time wind conditions.

[0053] To this end, some embodiments of the present invention provide a train blowing mechanism 10, which is applied to trains, and specifically refers to Figures 1 to 7 The train air blowing mechanism 10 is illustrated.

[0054] Reference Figure 1 and Figure 2As shown, in an embodiment of the present invention, the train blowing mechanism 10 includes: a base 100, a rotating base 200, a first driving module 300 and an air injection device 400, wherein the base 100 can be columnar, and the base 100 is a hollow structure, and an inner cavity 110 suitable for accommodating the rotating base 200 is provided inside. The rotating base 200 is arranged in the inner cavity 110 and can rotate relative to the base 100. Specifically, the rotating base 200 can rotate around the radial direction of the base 100, can also rotate around the axial direction of the base 100, and can also rotate around the radial and axial directions of the base 100 at the same time. The first driving module 300 is connected to the rotating base 200, wherein the first driving module 300 can include a driver and a transmission member, and the present embodiment does not limit the combination of the driver and the transmission member. The driver is connected to the rotating base 200 through the transmission member, so that the rotating base 200 can be driven to rotate relative to the base 100.

[0055] Reference Figure 3 As shown, in the embodiment of the present invention, a blowing channel 210 is provided inside the rotating seat 200, one end of the blowing channel 210 is connected to the blowing hole 450, and the other end is connected to the compression device, and the compression device can send compressed air into the blowing channel 210 and eject it through the blowing hole 450. Based on this, when the rotating seat 200 rotates relative to the base 100, the direction of the airflow transmitted by the blowing channel 210 to the blowing hole 450 will also change, thereby adjusting the direction of the airflow ejected from the blowing hole 450, so that the train blowing mechanism 10 can dynamically adjust the ejection direction of the airflow according to the direction of the crosswind and the running direction of the train.

[0056] Reference Figure 1 and Figure 2 As shown, in the embodiment of the present invention, a through slot is provided at one end of the base 100, and the through slot is suitable for the installation of the jet device 400. The jet device 400 is installed in the through slot and connected to the base 100. Specifically, the jet device 400 includes a mounting seat 410, a driving member 420, a second driving module (not shown in the figure) and a plurality of blades 440, wherein the mounting seat 410 is a disc-shaped structure, and the plurality of blades 440 are arranged at intervals along the circumference of the mounting seat 410, and the ends of each blade 440 are surrounded to form a blowing hole 450, and the blowing hole 450 can be a circular hole or a polygonal hole, which is not limited in this embodiment.

[0057] Reference Figure 2 and Figure 3As shown, in an embodiment of the present invention, the blowing hole 450 connects the blowing channel 210 and the external environment, so as to eject the airflow in the blowing channel 210 to the external environment to offset the force of the crosswind. In order to adjust the airflow rate, in this embodiment, the driving member 420 is respectively connected to the plurality of blades 440, and the second driving module is connected to the driving member 420, and the second driving module can drive the driving member 420, so that the driving member 420 drives the plurality of blades 440 to deflect, so as to adjust the opening of the blowing hole 450. It can be understood that when the plurality of blades 440 are deflected, the spacing between the ends of each blade 440 can be changed, so as to adjust the aperture of the blowing hole 450, and then adjust the airflow rate and the air pressure of the airflow.

[0058] The embodiment of the present invention sprays air to the outside through the blowing channel 210 to offset the force of crosswind; driven by the first driving module 300, the rotating seat 200 can rotate relative to the base 100, so as to adjust the direction of the airflow sprayed by the rotating seat 200; driven by the second driving module, the driving member 420 can drive the multiple blades 440 to deflect, adjust the opening of the blowing holes 450, and adjust the flow rate and air pressure of the sprayed airflow by adjusting the aperture of the blowing holes 450, so that the train blowing mechanism 10 can dynamically adjust the spray direction, spray flow rate and spray pressure of the airflow according to the real-time situation, accurately offset the influence of crosswind on the train, and thus significantly improve the stability of the train during operation, so that the train can maintain stable operation under various wind conditions and reduce the risk of train overturning.

[0059] It is understandable that in order to realize the multi-directional flexible rotation of the rotating seat 200, refer to Figure 2 and Figure 3 As shown, in the embodiment of the present invention, the outer peripheral wall of the rotating seat 200 is a hemispherical surface, and correspondingly, the inner wall of the inner cavity 110 is a curved surface matching the hemispherical surface. Based on this, when the rotating seat 200 rotates relative to the base 100, the sliding fit between the hemispherical surface and the curved surface matching it can make the rotation of the rotating seat 200 smoother. Since the shapes of the hemispherical surface and the curved surface match each other, the friction between the rotating seat 200 and the base 100 is reduced, the efficiency and smoothness of the rotation of the rotating seat 200 are improved, the rotation accuracy of the rotating seat 200 is guaranteed, and the control accuracy of the airflow direction is improved.

[0060] Reference Figure 2 and Figure 4As shown, in an embodiment of the present invention, the size of the inner cavity 110 of the base 100 is slightly larger than the rotating seat 200, so the inner wall of the inner cavity 110 and the outer peripheral wall of the rotating seat 200 are spaced apart to form a gap. The train blowing mechanism 10 also includes a plurality of rolling assemblies 500 disposed between the inner wall of the inner cavity 110 and the outer peripheral wall of the rotating seat 200, that is, disposed in the gap between the two. The plurality of rolling assemblies 500 are arranged at intervals on the outer peripheral wall of the rotating seat 200. It can be understood that the rolling assemblies 500 arranged at intervals can ensure that the rotating seat 200 rotates more smoothly and smoothly in the inner cavity 110 of the base 100. Each rolling assembly 500 has the function of supporting and guiding, so that the rotating seat 200 is evenly stressed during rotation, reducing friction and resistance.

[0061] Specifically, the rolling assembly 500 includes a bearing seat 510 and a ball 520. The bearing seat 510 is fixedly connected to the rotating seat 200. In this embodiment, the bearing seat 510 can be threadedly connected to the rotating seat 200 by screws, or can be riveted to the rotating seat 200 by rivets, or can be riveted to the rotating seat 200 by fasteners, which is not limited in this embodiment. The bearing seat 510 can be provided with a mounting cavity suitable for mounting the ball 520, and the ball 520 is mounted in the mounting cavity and can rotate freely. The ball 520 is rollingly connected to the inner wall of the inner cavity 110, which reduces the direct contact between the rotating seat 200 and the base 100, thereby further reducing friction and wear, and extending the service life of the rotating seat 200 and the base 100.

[0062] Reference Figure 3 and Figure 5 As shown, in an embodiment of the present invention, an extension portion 220 is formed on one end of the rotating seat 200 that is away from the jet device 400. The extension portion 220 is a columnar structure. It should be noted that a cavity connected to the blowing channel 210 can be formed inside the extension portion 220 to connect the blowing channel 210 and the compression device.

[0063] Reference Figure 2 and Figure 5 As shown, in the embodiment of the present invention, the first drive module 300 includes a first drive component 310 and a second drive component 320, wherein the first drive component 310 includes a first connecting member 311, a first bracket 312, a first lead screw 313, a first driver 314 and a first mounting bracket 315, and the first connecting member 311 is an annular structure, and the first connecting member 311 is sleeved on the extension portion 220 to achieve connection with the rotating seat 200. The first bracket 312 is fixedly connected to the first connecting member 311, specifically, the first bracket 312 and the first connecting member 311 can be connected by screws, can also be connected by welding, and can also be connected by other types of fixed connection methods, which is not limited in this embodiment. Figure 5As shown, in the embodiment of the present invention, the first mounting frame 315 is fixedly connected to the base 100, and the first driver 314 is mounted on the first mounting frame 315 and connected to the first lead screw 313. The first lead screw 313 is passed through the first bracket 312 and is threadedly connected to the first bracket 312.

[0064] Similarly, the second drive assembly 320 includes a second connecting member 321, a second bracket 322, a second lead screw 323, a second driver 324 and a second mounting bracket 325. The second connecting member 321 is an annular structure. The second connecting member 321 is sleeved on the extension portion 220 to achieve connection with the rotating seat 200. The second connecting member 321 and the first connecting member 311 are arranged axially spaced apart from each other along the extension portion 220. The second bracket 322 is fixedly connected to the second connecting member 321. Specifically, the second bracket 322 and the second connecting member 321 can be connected by screws, welding, or other types of fixed connection methods, which are not limited in this embodiment. Figure 5 As shown, in the embodiment of the present invention, the second mounting frame 325 is fixedly connected to the base 100, and the second driver 324 is mounted on the second mounting frame 325 and connected to the second lead screw 323. The second lead screw 323 is inserted through the second bracket 322 and is threadedly connected to the second bracket 322.

[0065] Reference Figure 5 As shown, in the embodiment of the present invention, the first lead screw 313 is extended along the first direction, the second lead screw 323 is extended along the second direction, and the first direction and the second direction intersect. When the first lead screw 313 rotates, it can drive the extension part 220 to move along the first direction, so that the rotating seat 200 swings along the first direction. When the second lead screw 323 rotates, it can drive the extension part 220 to move along the second direction, so that the rotating seat 200 swings along the second direction. It can be understood that the cooperation of the first lead screw 313 and the second lead screw 323 can drive the rotating seat 200 to rotate in multiple directions, so that the train blowing mechanism 10 can spray airflow in different directions.

[0066] Reference Figure 6 and Figure 7As shown, in the embodiment of the present invention, a plurality of guide grooves 421 extending radially of the driving member 420 are provided at one end of the driving member 420 facing the plurality of blades 440, and the plurality of guide grooves 421 are arranged at intervals along the circumference of the driving member 420, and the guide grooves 421 are suitable for accommodating the guide portion 441. A guide portion 441 is formed on one end of each blade 440 facing the driving member 420, and the guide portion 441 is slidably connected with the guide groove 421 in a one-to-one correspondence. In this embodiment, the second driving module can drive the driving member 420 to rotate so that the guide portion 441 moves along the guide groove 421. It can be understood that when the driving member 420 rotates, the guide portion 441 moves along the guide groove 421, thereby driving the blade 440 to deflect, and then adjusting the aperture of the blowing hole 450. It should be noted that the second driving module may include a driver and a rack, and correspondingly, the outer peripheral wall of the driving member 420 may be provided with a tooth portion 422 that can cooperate with the rack, and the driver can drive the driving member 420 to rotate through the rack. This embodiment does not limit the manner in which the second driving module drives the driving member 420 to rotate.

[0067] Reference Figure 3 As shown, in the embodiment of the present invention, the cross-sectional area of ​​the blowing channel 210 gradually increases along the blowing direction of the blowing channel 210. It can be understood that in this embodiment, the blowing channel 210 is set as a diffusion structure so that the airflow can be gradually accelerated when passing through the blowing channel 210, and at the same time, it helps to reduce the turbulence and eddy current when the airflow passes through, making the airflow more stable, thereby enhancing the blowing effect.

[0068] The embodiment of the present invention further provides a train, including the train blowing mechanism 10 of the above embodiment. Specifically, the train can be a train, a subway, a light rail, a maglev train, etc., which is not limited in this embodiment. The train can include multiple train blowing mechanisms 10, and the multiple train blowing mechanisms 10 are arranged at intervals on the outer shell of the train to spray airflow in different directions.

[0069] The train of the embodiment of the present invention is provided with a blowing channel 210 inside the rotating seat 200, and an airflow is ejected to the outside through the blowing channel 210 to offset the force of the crosswind; the rotating seat 200 is arranged in the inner cavity 110 of the base 100, and is driven by the first driving module 300, so that the rotating seat 200 can rotate relative to the base 100, so that the rotating seat 200 can adjust the direction of the ejected airflow; the jet device 400 includes a mounting seat 410, a driving member 420, a second driving module and a plurality of blades 440, and the plurality of blades 440 are arranged to form a connecting blowing channel The air blowing hole 450 of 210 is driven by the second driving module, and the driving member 420 can drive the multiple blades 440 to deflect to adjust the opening of the air blowing hole 450. By adjusting the aperture of the air blowing hole 450, the flow rate and air pressure of the jet air flow are adjusted, so that the train blowing mechanism 10 can dynamically adjust the jet direction, jet flow rate and jet pressure of the air flow according to the real-time situation, accurately offset the influence of crosswind on the train, and thus significantly improve the stability of the train during operation, so that the train can maintain smooth operation under various wind conditions, and reduce the risk of train overturning.

[0070] Since the train adopts all the technical solutions of the train air blowing mechanism 10 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0071] An embodiment of the present invention further provides a train control method, which is applied to the train of the above embodiment, wherein the train further includes a first sensor and a second sensor, wherein the first sensor is used to detect the wind environment in which the train is located, and the second sensor is used to detect the center of gravity offset of the train. In this embodiment, the first sensor may be a wind speed and direction sensor, and the second sensor may be an acceleration sensor.

[0072] Reference Figure 8 As shown, in an embodiment of the present invention, the control method includes:

[0073] Step S601, when the train is in a crosswind area, obtain the first lateral acceleration of the train and compare it with a preset threshold.

[0074] It is understandable that when the train travels to the crosswind area, the first sensor can detect that the train is in the crosswind area. Based on this, the second sensor can detect the current lateral acceleration of the train, that is, the first lateral acceleration. It is understandable that the first lateral acceleration can be expressed as the train is currently affected by the crosswind. In order to prevent the force of the crosswind on the train from exceeding the safety range, this embodiment can determine whether the train needs the intervention of the train stabilization device by comparing the first lateral acceleration and the preset threshold, wherein the preset threshold can be the maximum deviation degree of the train within the safety range.

[0075] Step S602: when the first lateral acceleration is greater than a preset threshold, the blowing hole 450 is controlled to open to spray airflow to the external environment.

[0076] It can be understood that when the first lateral acceleration is greater than the preset safety threshold, it means that the impact of the crosswind on the train has reached a dangerous level that may cause the risk of train overturning. Therefore, it is necessary to start the train blowing mechanism 10 to stabilize the posture of the train and reduce the possibility of train overturning.

[0077] Reference Fig. 9 As shown, in the embodiment of the present invention, the control method further includes:

[0078] Step S603, after the jet airflow is injected into the external environment for a preset time, a second lateral acceleration of the train is obtained and compared with a preset threshold.

[0079] It is understandable that after the jet airflow is injected into the external environment for a preset time, the train may have returned to a normal running state, based on which the second sensor can detect the current lateral acceleration of the train again, i.e., the second lateral acceleration. By comparing the second lateral acceleration with the preset threshold, it can be determined whether the train needs the intervention of the train stabilization device again.

[0080] Step S604, when the second lateral acceleration is greater than a preset threshold, the rotating base 200 is controlled to rotate relative to the base 100 to change the spray direction of the airflow, and / or the aperture of the blowing hole 450 is controlled to increase.

[0081] It is understandable that when the second lateral acceleration is greater than the preset safety threshold, it means that the influence of the crosswind on the train still reaches a dangerous level that may cause the risk of the train overturning. Therefore, the train blowing mechanism 10 needs to intervene further to precisely spray airflow through the train blowing mechanism 10 to offset the influence of the crosswind. Specifically, in this embodiment, the spray direction of the airflow can be changed by controlling the rotation of the rotating seat 200 relative to the base 100, and the aperture of the blowing hole 450 can be increased to increase the spray flow rate of the airflow. The spray direction of the airflow and the increase of the spray flow rate can also be changed at the same time, and this embodiment does not limit this.

[0082] Reference Fig.10 As shown, in the embodiment of the present invention, the control method further includes:

[0083] Step S605 , after changing the jet direction of the airflow and / or controlling the aperture of the air blowing hole 450 to increase and a preset time has passed, obtaining a third lateral acceleration of the train and comparing it with a preset threshold.

[0084] It is understandable that after the precise intervention of the train air blowing mechanism 10, it is possible to confirm whether the train has resumed normal driving by comparing the current lateral acceleration of the train, that is, the third offset degree, with the preset threshold.

[0085] Step S606, when the third lateral acceleration is greater than the preset threshold, the rotating base 200 is controlled to rotate relative to the base 100 again, and / or the aperture of the blowing hole 450 is controlled to increase.

[0086] It is understandable that when the third lateral acceleration is greater than the preset threshold, it means that the influence of the crosswind on the train still reaches a dangerous level that may cause the risk of train overturning, and therefore, further intervention is required by the train blowing mechanism 10. In this embodiment, the jet direction of the airflow can be changed by controlling the rotating seat 200 to rotate relative to the base 100 again, and the aperture of the blowing hole 450 can be further increased to further increase the jet flow rate of the airflow. The jet direction of the airflow can also be changed and the jet flow rate can be increased at the same time, and this embodiment does not limit this.

[0087] Step S607: when the third lateral acceleration is less than or equal to a preset threshold, the blowing hole 450 is controlled to be closed.

[0088] It can be understood that when the third lateral acceleration is less than the preset threshold, it means that the impact of the crosswind on the train is not sufficient to cause the risk of train overturning, and the intervention of the train blowing mechanism 10 can be stopped at this time.

[0089] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A train air blowing mechanism, characterized in that: include: A base having an inner cavity therein; A rotating seat is arranged in the inner cavity, and a blowing channel is arranged inside the rotating seat; A first driving module, connected to the rotating seat and capable of driving the rotating seat to rotate relative to the base; An air jet device is connected to the base, and includes a mounting seat, a driving member, a second driving module and a plurality of blades. The plurality of blades are arranged at intervals along the circumference of the mounting seat to surround and form an air blowing hole, and the air blowing hole is connected to the air blowing channel. The driving member is respectively connected to the plurality of blades, and the second driving module can drive the driving member to drive the plurality of blades to deflect so as to adjust the opening of the air blowing hole.

2. The train air blowing mechanism according to claim 1, characterized in that: The outer peripheral wall of the rotating seat is a hemispherical surface, and the inner wall of the inner cavity is a curved surface matching the hemispherical surface.

3. The train air blowing mechanism according to claim 2, characterized in that: The inner wall of the inner cavity and the outer peripheral wall of the rotating seat are arranged at intervals, and the train blowing mechanism also includes a plurality of rolling components arranged between the inner wall of the inner cavity and the outer peripheral wall of the rotating seat, and the plurality of rolling components are arranged at intervals on the outer peripheral wall of the rotating seat, and the rolling components include a bearing seat and a ball, the bearing seat is fixedly connected to the rotating seat, and the ball is installed on the bearing seat and rollingly connected to the inner wall of the inner cavity.

4. The train air blowing mechanism according to claim 2 or 3, characterized in that: An extension portion is formed on the end of the rotating seat facing away from the jet device, and the first driving module includes a first driving component and a second driving component, and the first driving component and the second driving component respectively include a connecting piece, a bracket and a screw, the connecting piece is sleeved on the extension portion, the bracket is connected to the connecting piece, the screw is connected to the base, and is penetrated by the bracket and threadedly connected to the bracket, the screw of the first driving component is extended along a first direction, and the screw of the second driving component is extended along a second direction, and the first direction and the second direction intersect, and when the screw of the first driving component rotates, it can drive the extension portion to move along the first direction so that the rotating seat swings along the first direction, and when the screw of the second driving component rotates, it can drive the extension portion to move along the second direction so that the rotating seat swings along the second direction.

5. The train air blowing mechanism according to claim 1, characterized in that: The driving member is provided with a plurality of guide grooves extending radially along the driving member at one end facing the plurality of blades, and the plurality of guide grooves are arranged at intervals along the circumference of the driving member. Each blade is provided with a guide portion protruding from one end facing the driving member, and the guide portion is slidingly connected to the guide groove in a one-to-one correspondence. The second driving module can drive the driving member to rotate so that the guide portion moves along the guide groove.

6. The train air blowing mechanism according to claim 1, characterized in that: Along the blowing direction of the blowing channel, the cross-sectional area of ​​the blowing channel gradually increases.

7. A train, characterized in that: It comprises the train air blowing mechanism as claimed in any one of claims 1 to 6.

8. A train control method, characterized in that: Applied to the train according to claim 7, the train further comprises a first sensor and a second sensor, the first sensor is used to detect the wind environment in which the train is located, and the second sensor is used to detect the center of gravity offset of the train, and the control method comprises: When the train is in a crosswind area, obtaining a first lateral acceleration of the train and comparing it with a preset threshold; When the first lateral acceleration is greater than the preset threshold, the blowing hole is controlled to open to spray airflow to the external environment.

9. The train control method according to claim 8, characterized in that: The control method further comprises: After spraying airflow to the external environment for a preset time, obtaining a second lateral acceleration of the train and comparing it with a preset threshold; When the second lateral acceleration is greater than the preset threshold, the rotating seat is controlled to rotate relative to the base to change the spray direction of the airflow, and / or the aperture of the blowing hole is controlled to increase.

10. The train control method according to claim 9, characterized in that: The control method further comprises: After changing the jet direction of the airflow and / or controlling the aperture of the air blowing hole to increase and a preset time has passed, obtaining a third lateral acceleration of the train and comparing it with a preset threshold; When the third lateral acceleration is greater than the preset threshold, the rotating base is controlled to rotate relative to the base again, and / or the diameter of the blowing hole is controlled to increase; When the third lateral acceleration is less than or equal to the preset threshold, the blowing hole is controlled to be closed.

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