A train and its head

Abstract

The application discloses a train and a train head thereof, wherein the train head comprises a train head body, at least one top side protruding ridge is arranged on the top of the train head body, all the top side protruding ridges are arranged at the two ends of the front window of the train head body, and a top flow guide groove for guiding airflow to flow along the top of the train head body is formed between any two adjacent top side protruding ridges; at least one side edge protruding ridge is symmetrically arranged on the left side and the right side of the train head body respectively, and a side edge flow guide groove for guiding airflow to flow along the side edge of the train head body is formed between any two adjacent side edge protruding ridges. The train head provided by the application can effectively reduce the air resistance of the high-speed train by optimizing the top and side structures of the train head.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail vehicle technology, in particular to a train and a train head thereof. BACKGROUND

[0002] Taking a high-speed train as an example, with the continuous increase of the running speed of the high-speed train, the aerodynamic problem of the high-speed train is more and more prominent. The running resistance of the high-speed train increases rapidly with the increase of the speed, and when the running speed of the high-speed train reaches 300 km / h, the air resistance accounts for about 80% of the total resistance, so reducing the air resistance of the high-speed train is of great significance to improve the running speed of the high-speed train. The flow field around the high-speed train during running belongs to high-turbulence flow, and the vortex is mainly generated at the head, tail, bottom, vehicle connection part and wake area of the high-speed train, so the shape of the high-speed train needs to be aerodynamically optimized to reduce the air resistance.

[0003] At present, the commonly used aerodynamic drag reduction method of the high-speed train is mainly to change the shape of the train head, however, due to the limitation of the existing technology, the shape of the train head of the existing train still has deficiencies, and the air resistance is still large. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a train and a train head thereof, which optimizes the top and side of the train head and solves the technical problem of large air resistance of the existing train head.

[0005] To achieve the above-mentioned purpose, the present application provides a train head, which comprises a train head body, at least one top side ridge is arranged on the top of the train head body, all the top side ridges are distributed at both ends of the front window of the train head body, and a top flow guide groove for guiding the airflow to flow along the top of the train head body is formed between any two adjacent top side ridges; at least one side edge ridge is symmetrically arranged on the left and right sides of the train head body, and a side edge flow guide groove for guiding the airflow to flow along the side edge of the train head body is formed between any two adjacent side edge ridges.

[0006] Preferably, a nose cone is integrally formed at the front end of the train head body; four side edge ridges are arranged on the left and right sides of the train head body, and the four side edge ridges all extend from the nose cone to the front contour of the side window of the train head body.

[0007] Preferably, the four side edge ridges comprise a first side edge ridge and a second side edge ridge arranged from top to bottom; the first side edge ridge is parallel to the second side edge ridge and both are in a lower convex shape; the first side edge ridge is parallel to the junction contour of the side of the train head body and the roof thereof.

[0008] Preferably, the first side edge protrusion extends from the tip of the nose cone to the side profile of the vehicle head body; the starting point of the first side edge protrusion is at a first preset starting height from the bottom side of the vehicle head body, and the ending point of the first side edge protrusion is at a first preset ending height from the bottom side of the vehicle head body; the starting point of the second side edge protrusion is at a second preset starting distance from the tip of the nose cone and a second preset starting height from the bottom side of the vehicle head body; and the ending point of the second side edge protrusion is at a second preset ending height from the bottom side of the vehicle head body.

[0009] Preferably, the four side edge protrusions further comprise a third side edge protrusion and a fourth side edge protrusion arranged from top to bottom; the third side edge protrusion is below the second side edge protrusion; the third side edge protrusion is convex upward; the fourth side edge protrusion is parallel to the junction profile of the side of the vehicle head body and the bottom side thereof; and the fourth side edge protrusion comprises a fourth front segment protrusion parallel to the third side edge protrusion and a fourth rear segment protrusion parallel to the bottom side of the vehicle head body.

[0010] Preferably, the starting point of the third side edge protrusion is at a third preset starting distance from the tip of the nose cone and a third preset starting height from the bottom side of the vehicle head body, and the ending point of the third side edge protrusion is at a third preset ending height from the bottom side of the vehicle head body; the starting point of the fourth side edge protrusion is at a fourth preset starting distance from the tip of the nose cone and a fourth preset starting height from the bottom side of the vehicle head body, and the ending point of the fourth side edge protrusion is at a fourth preset ending height from the bottom side of the vehicle head body.

[0011] Preferably, the left and right sides of the vehicle head body are further respectively and symmetrically provided with two strip-shaped protrusions, and a side edge flow channel is formed between the two strip-shaped protrusions; the side edge flow channel formed between the second side edge protrusion and the third side edge protrusion is opposite to one of the strip-shaped protrusions, the side edge flow channel formed between the other strip-shaped protrusion and the fourth side edge protrusion corresponds to the side edge flow channel formed between the third side edge protrusion and the fourth side edge protrusion and penetrates through.

[0012] Preferably, the top side protrusion comprises four top side front protrusions, the four top side front protrusions are arranged in pairs symmetrically along the transverse symmetry plane of the vehicle head body and extend from the tip of the vehicle head body to the front side profile of the front window of the vehicle head body; the included angle between the two inner top side front protrusions and the transverse symmetry plane is a first preset included angle, the included angle between the two outer top side front protrusions and the transverse symmetry plane is a second preset included angle, and the second preset included angle is greater than the first preset included angle.

[0013] Preferably, the top side protrusion comprises four top side rear protrusions, two of the top side rear protrusions are arranged symmetrically along the transverse symmetry plane of the vehicle head body and extend from the rear side profile of the front window along the top profile of the vehicle head body by a preset extension length.

[0014] Preferably, a barrier clearer is integrally formed at the bottom of the nose cone of the vehicle body. The barrier clearer is in the shape of an upward-curving bow and includes an upper side and a lower side. The upper side and the lower side meet to form a tip. In the direction away from the tip, the height of the lower side from the ground gradually decreases until it smoothly connects with the bottom side of the vehicle body. The upper side is convex and forms a recessed groove with the bottom side of the nose cone.

[0015] The present invention also provides a train, including the locomotive described in any of the above claims.

[0016] Compared with the prior art, the train head provided by the present invention includes a head body, the top of the head body is provided with at least one top side protrusion, all the top side protrusions are distributed at the front and rear ends of the front window, and a top guide groove is formed between any two adjacent top side protrusions. The top guide groove is used to guide the airflow along the top of the head body. In this way, the air resistance of high-speed trains can be effectively reduced by optimizing the top shape of the head.

[0017] Furthermore, at least one side protrusion is symmetrically provided on the left and right sides of the train head body, and a side guide groove is formed between any two adjacent side protrusions. The side guide groove is used to guide the airflow along the side of the train head body. In this way, the air resistance of the high-speed train can be further reduced by optimizing the side shape of the train head.

[0018] Therefore, the train head provided by this invention can effectively reduce the air resistance of high-speed trains by optimizing its top and side structures.

[0019] The train provided by this invention, including the locomotive, has the same beneficial effects. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is an axle-side view of the train head provided in a specific embodiment of the present invention;

[0022] Figure 2 for Figure 1 Top view;

[0023] Figure 3 for Figure 1 The main view;

[0024] Figure 4 for Figure 1 Structural diagram of the nose cone of the CRRC headstock;

[0025] Figure 5 For Figure 1 An enlarged view of the fender of the vehicle head body.

[0026] The reference signs are as follows:

[0027] The vehicle head body 1;

[0028] The nose cone 11, the top side protruding ridge 12, the top portion flow guiding groove 13, the side edge protruding ridge 14, the side edge flow guiding groove 15, the strip-shaped convex bump 16 and the fender 17;

[0029] The top side front protruding ridge 121 and the top side rear protruding ridge 122;

[0030] The first side edge protruding ridge 141, the second side edge protruding ridge 142, the third side edge protruding ridge 143 and the fourth side edge protruding ridge 144;

[0031] The upper side surface 171, the lower side surface 172, the pointed end 173 and the recessed groove 174. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without any creative work fall within the protection scope of the present application.

[0033] In order for the person in the technical field to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0034] The vehicle head of the present application is disclosed in the embodiments, please refer to Figures 1 to 4 , which comprises a vehicle head body 1. The vehicle head body 1 adopts a streamlined design, and the appearance structure thereof can refer to the prior art. In this specific embodiment, taking a vehicle head of a certain specification as an example, the length of the vehicle head body 1 is 12.6 m, the width is 3.4 mm, and the height is 3.8 m. Of course, the outer dimensions of the vehicle head body 1 are not limited thereto.

[0035] Generally, the top portion of the vehicle head body 1 is provided with a front window, which facilitates the driver to observe the running direction of the train. The top portion of the vehicle head body 1 is provided with at least one top side protruding ridge 12. All the top side protruding ridges 12 are distributed at the front and rear ends of the front window, and a top portion flow guiding groove 13 is formed between any two adjacent top side protruding ridges 12. The top portion flow guiding groove 13 is used for guiding the airflow to flow along the top portion of the vehicle head body 1. In this way, the air resistance of the high-speed train can be effectively reduced by optimizing the shape of the top portion of the vehicle head.

[0036] Further, at least one side edge protruding rib 14 is symmetrically arranged on each side of the head body 1, and a side edge flow guide groove 15 is formed between any two adjacent side edge protruding ribs 14, which is used to guide the airflow to flow along the side edge of the head body 1, so that the air resistance of the high-speed train can be further reduced by optimizing the shape of the side edge of the head.

[0037] The height of all the top side protruding ribs 12 and all the side edge protruding ribs 14 can be between 0.05m and 0.1m, and the width can be between 0.4m and 0.6m. Of course, the size of each protruding rib can be adjusted according to the size of the head, which is not specifically limited here.

[0038] In summary, the head of the train provided by the application can effectively reduce the air resistance of the high-speed train by optimizing the top and side structures.

[0039] The front end of the head body 1 is integrally formed with a nose cone 11, the cone angle of which can be 50° and smoothly extend to the same width as the head body 1. The two sides of the head body 1 are symmetrically provided with front windows for convenient observation of the left and right sides of the train. Four side edge protruding ribs 14 are arranged on each side of the head body 1, and the four side edge protruding ribs 14 all extend from the nose cone 11 to the front contour of the side window of the head body 1, forming three side edge flow guide grooves 15, which effectively reduce the lift and make the lift close to zero, ensuring the stability of the train running. Of course, the number and arrangement of the side edge protruding ribs 14 can be adjusted according to the shape of the head, which is not specifically limited here.

[0040] The four side edge protruding ribs 14 include a first side edge protruding rib 141 and a second side edge protruding rib 142 arranged from top to bottom. The first side edge protruding rib 141 is parallel to the second side edge protruding rib 142, and both are convex downward. The first side edge protruding rib 141 is parallel to the junction contour of the side surface and the roof of the head body 1, so that the side edge flow guide groove 15 formed between the first side edge protruding rib 141 and the second side edge protruding rib 142 can better guide the airflow. Of course, the extension of the first side edge protruding rib 141 and the second side edge protruding rib 142 can be adjusted according to the shape of the head, which is not specifically limited here.

[0041] The first side edge ridge 141 extends from the nose tip of the nose cone 11 to the side profile of the vehicle head body 1, and the starting point of the first side edge ridge 141 is at a first preset starting height from the bottom side of the vehicle head body 1, which can be specifically 0.8 m. The ending point of the first side edge ridge 141 is at a first preset ending height from the bottom side of the vehicle head body 1, which can be specifically 2.9 m. The starting point of the second side edge ridge 142 is at a second preset starting distance from the nose tip, which can be specifically 2.1 m. The starting point of the second side edge ridge 142 is at a second preset starting height from the bottom side of the vehicle head body 1, which can be specifically 0.67 m. The ending point of the second side edge ridge 142 is at a second preset ending height from the bottom side of the vehicle head body 1, which can be specifically 2.4 m.

[0042] The four side edge ridges 14 further include a third side edge ridge 143 and a fourth side edge ridge 144 arranged from top to bottom, and the third side edge ridge 143 is below the second side edge ridge 142, and a side edge flow guide groove 15 is formed between the second side edge ridge 142 and the third side edge ridge 143.

[0043] The third side edge ridge 143 is convex upward and extends gently. The fourth side edge ridge 144 is parallel to the junction profile of the side surface and the bottom side of the vehicle head body 1, and the fourth side edge ridge 144 includes a fourth front segment ridge parallel to the third side edge ridge 143 and a fourth rear segment ridge parallel to the bottom side of the vehicle head body 1, so that the side edge flow guide groove 15 formed between the third side edge ridge 143 and the fourth side edge ridge 144 can better guide the flow of air. Specifically, the length of the fourth front segment ridge can be 2.8 m, but is not limited thereto. Of course, the extension modes of the third side edge ridge 143 and the fourth side edge ridge 144 can also be adaptively adjusted according to the shape of the vehicle head, which is not specifically limited here.

[0044] The starting point of the third side edge ridge 143 is at a third preset starting distance from the nose tip, which can be specifically 2.5 m. The starting point of the third side edge ridge 143 is at a third preset starting height from the bottom side of the vehicle head body 1, which can be specifically 0.46 m. The ending point of the third side edge ridge 143 is at a third preset ending height from the bottom side of the vehicle head body 1, which can be specifically 1.3 m.

[0045] The starting point of the fourth side edge ridge 144 is at a fourth preset starting distance from the nose tip, which can be specifically 2.9 m. The starting point of the fourth side edge ridge 144 is at a fourth preset starting height from the bottom side of the vehicle head body 1, which can be specifically 0.3 m. The ending point of the fourth side edge ridge 144 is at a fourth preset ending height from the bottom side of the vehicle head body 1, which can be specifically 1.28 m.

[0046] The left and right sides of the vehicle head body 1 are also respectively provided with two strip-shaped convexes 16, and a side edge flow guide groove 15 is formed between the two strip-shaped convexes 16, which is used for further guiding the airflow. The side edge flow guide groove 15 formed between the second side edge convex 142 and the third side edge convex 143 is opposite to one of the strip-shaped convexes 16, and the side edge flow guide groove 15 formed between the other strip-shaped convex 16 and the fourth side edge convex 144 corresponds to the side edge flow guide groove 15 formed between the third side edge convex 143 and the fourth side edge convex 144, which is used for better guiding the airflow.

[0047] Specifically, the two strip-shaped convexes 16 are arranged in parallel, and the distance between the two strip-shaped convexes 16 can be 0.4 m. The height of the two strip-shaped convexes 16 can be 0.05 m. The length of the upper strip-shaped convex 16 is 2.4 m, and the width is 0.3 m. The length of the lower strip-shaped convex 16 is 2.5 m, and the terminal point is 1.28 m away from the bottom side of the vehicle head body 1. Of course, the arrangement of the two strip-shaped convexes 16 can also be adjusted adaptively according to the shape of the vehicle head, which is not limited here.

[0048] The top side convex 12 includes four top side front convexes 121, which are arranged in pairs on both sides of the transverse symmetry plane of the vehicle head body 1, and the four top side front convexes 121 extend from the nose tip of the vehicle head body 1 to the front side contour of the front window. The four top side front convexes 121 form three top side convexes 12, which are used for better guiding the airflow.

[0049] The two inner top side front convexes 121 are symmetrically arranged on both sides of the transverse symmetry plane and have equal lengths, and the length of the two inner top side front convexes 121 can be 3.3 m. The two inner top side front convexes 121 form a first preset angle, which can be 4°. The two outer top side front convexes 121 are symmetrically arranged on both sides of the transverse symmetry plane and have equal lengths, and the length of the two outer top side front convexes 121 can be 3.6 m. The angle between the two outer top side front convexes 121 and the transverse symmetry plane is a second preset angle, which is greater than the first preset angle. The second preset angle can be 8°.

[0050] The top side convex rib 12 comprises four top side rear convex ribs 122, two of which are symmetrically arranged along the lateral symmetry plane of the vehicle head body 1, and a top side convex rib 12 is formed between the two top side rear convex ribs 122 for better guiding the airflow. Both of the two top side rear convex ribs 122 extend from the rear side profile of the front window along the top profile of the vehicle head body 1 by a preset extension length, which can be 2.5 m, that is, the length of the two top side rear convex ribs 122 can be 2.5 m. The distance between the two top side rear convex ribs 122 can be 0.5 m, but is not limited thereto. Of course, the arrangement of all the top side convex ribs 12 is not limited thereto.

[0051] As shown in Figure 5 The vehicle head body 1 is integrally formed with a fender 17 at the bottom of the nose cone 11, the fender 17 is an upwardly curved arch, the fender 17 comprises an upper side 171 and a lower side 172, the upper side 171 and the lower side 172 meet to form a pointed end 173, the included angle of the pointed end 173 can be 75°, and the pointed end 173 is 0.2 m away from the ground. In the direction away from the pointed end 173, the height of the lower side 172 away from the ground gradually decreases until it smoothly connects with the bottom side of the vehicle head body 1, and the transverse width of the connection place can be 3.1 m. The upper side 171 is convex upward and forms a recessed groove 174 with the bottom side of the nose cone 11, the depth of the recessed groove 174 can be 0.08 m, and the width thereof can be 0.03 m.

[0052] The embodiment of the application discloses a train comprising the above vehicle head, which has the same beneficial effects.

[0053] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0054] The principles and implementation modes of the present application are described by using specific examples in the present application, and the above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, some improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A locomotive head for a train, characterised in that, The vehicle head body (1) is provided with at least one top side ridge (12) on the top thereof, all the top side ridges (12) are distributed at both ends of the front window of the vehicle head body (1), and any two adjacent top side ridges (12) form a top guiding groove (13) for guiding airflow to flow along the top of the vehicle head body (1); the left and right sides of the vehicle head body (1) are respectively and symmetrically provided with at least one side ridge (14), and any two adjacent side ridges (14) form a side guiding groove (15) for guiding airflow to flow along the side of the vehicle head body (1); The front end of the vehicle head body (1) is integrally formed with a nose cone (11); the left and right sides of the vehicle head body (1) are each provided with four side ridges (14), and the four side ridges (14) all extend from the nose cone (11) to the front contour of the side window of the vehicle head body (1); The top side ridge (12) comprises four top side front ridges (121), the four top side front ridges (121) are arranged in pairs of symmetry along the transverse symmetry plane of the vehicle head body (1) and all extend from the nose tip of the vehicle head body (1) to the front side contour of the front window thereof; The top side ridge (12) comprises four top side rear ridges (122), two of the top side rear ridges (122) are arranged in symmetry along the transverse symmetry plane of the vehicle head body (1) and extend from the rear side contour of the front window along the top contour of the vehicle head body (1) by a preset extension length; The four side ridges (14) comprise a first side ridge (141) and a second side ridge (142) arranged from top to bottom; the first side ridge (141) is parallel to the second side ridge (142) and both are in a lower convex shape; the first side ridge (141) is parallel to the junction contour of the side surface and the roof of the vehicle head body (1); The four side ridges (14) further comprise a third side ridge (143) and a fourth side ridge (144) arranged from top to bottom; the third side ridge (143) is below the second side ridge (142); the third side ridge (143) is in an upper convex shape; the fourth side ridge (144) is parallel to the junction contour of the side surface and the bottom side of the vehicle head body (1); the fourth side ridge (144) comprises a fourth front segment ridge parallel to the third side ridge (143) and a fourth rear segment ridge parallel to the bottom side of the vehicle head body (1).

2. The locomotive of claim 1, wherein, The first side edge ridge (141) extends from the nose tip of the nose cone (11) to the side profile of the vehicle head body (1); the starting point of the first side edge ridge (141) is at a first preset starting height from the bottom side of the vehicle head body (1), and the ending point of the first side edge ridge (141) is at a first preset ending height from the bottom side of the vehicle head body (1); the starting point of the second side edge ridge (142) is at a second preset starting distance from the nose tip and a second preset starting height from the bottom side of the vehicle head body (1); the ending point of the second side edge ridge (142) is at a second preset ending height from the bottom side of the vehicle head body (1).

3. The locomotive of claim 1, wherein, The starting point of the third side edge ridge (143) is at a third preset starting distance from the nose tip and a third preset starting height from the bottom side of the vehicle head body (1), and the ending point of the third side edge ridge (143) is at a third preset ending height from the bottom side of the vehicle head body (1); the starting point of the fourth side edge ridge (144) is at a fourth preset starting distance from the nose tip and a fourth preset starting height from the bottom side of the vehicle head body (1), and the ending point of the fourth side edge ridge (144) is at a fourth preset ending height from the bottom side of the vehicle head body (1).

4. A locomotive head for a train as claimed in claim 3, characterised in that, The left and right sides of the vehicle head body (1) are also respectively provided with two symmetrical strip-shaped convexes (16), and a side edge flow guide groove (15) is formed between the two strip-shaped convexes (16); the side edge flow guide groove (15) formed between the second side edge ridge (142) and the third side edge ridge (143) is opposite to one of the strip-shaped convexes (16), the side edge flow guide groove (15) formed between the other strip-shaped convex (16) and the fourth side edge ridge (144) penetrates through the side edge flow guide groove (15) formed between the third side edge ridge (143) and the fourth side edge ridge (144) correspondingly.

5. A locomotive according to any one of claims 1 to 4, characterised in that The included angle between the two inner top side front ridges (121) and the transverse symmetry plane is a first preset included angle, the included angle between the two outer top side front ridges (121) and the transverse symmetry plane is a second preset included angle, and the second preset included angle is greater than the first preset included angle.

6. A locomotive according to any one of claims 1 to 4, characterised in that The nose cone (11) of the vehicle head body (1) is integrally formed with a barrier remover (17) at the bottom, the barrier remover (17) is in an upward arch shape, the barrier remover (17) includes an upper side (171) and a lower side (172), and the upper side (171) and the lower side (172) intersect to form a tip (173); in the direction away from the tip (173), the height of the lower side (172) from the ground gradually decreases until it smoothly connects with the bottom side of the vehicle head body (1); the upper side (171) is convex upward and forms a recessed groove (174) with the bottom side of the nose cone (11).

7. A train characterised by The vehicle head includes the vehicle head according to any one of claims 1 to 6.

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