CN114872750B - Barrier removing diffuser for train - Google Patents
Barrier removing diffuser for train Download PDFInfo
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- CN114872750B CN114872750B CN202210590207.3A CN202210590207A CN114872750B CN 114872750 B CN114872750 B CN 114872750B CN 202210590207 A CN202210590207 A CN 202210590207A CN 114872750 B CN114872750 B CN 114872750B
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- Prior art keywords
- barrier
- train
- section
- diffuser
- diffusion
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/06—Nets, catchers, or the like for catching obstacles or removing them from the track
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/02—Construction details of vehicle bodies reducing air resistance by modifying contour ; Constructional features for fast vehicles sustaining sudden variations of atmospheric pressure, e.g. when crossing in tunnels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a barrier removing diffuser for a train, which comprises a barrier removing structure which is arranged below the head part and/or the tail part of the train and is used for removing rail barriers, wherein the barrier removing structure is of a semi-closed surrounding structure, and a diffusion structure which is used for guiding the flow direction of gas and rectifying the gas is arranged in a region surrounded by the barrier removing structure. By arranging the barrier removing structure and the diffusion structure at the same time, the barrier removing diffuser has the functions of removing rail barriers and guiding and rectifying the air flow passing through the barrier removing structure and flowing through the diffusion structure. Compared with the prior art that the obstacle deflector has the obstacle removing function and simultaneously causes the phenomenon of blocking and dragging of the air flow at the bottom of the vehicle body, the technical scheme provided by the invention rectifies the air flow with the blocking and dragging through the diffusion structure and guides the air flow to orderly pass through the obstacle removing diffuser, so that the blocking and dragging phenomenon is eliminated or relieved, and the situation that the normal operation of a train is disturbed due to the arrangement of obstacle removing facilities is avoided.
Description
Technical Field
The invention mainly relates to the technical field of barrier spreaders, in particular to a barrier spreaders for a train.
Background
The barrier remover is used for removing barriers appearing on railway tracks in the running process of the train, so that the damage of the barriers to the train can be removed, the normal running of the train is ensured, and the safety of lives, properties and transported goods of passengers is ensured. In order to ensure safe running of the train, the height of the lower plane of the train barrier device from the rail surface of the rail has a specific range of values, when the outline dimension of the barrier on the rail track is lower than the lower plane of the barrier device, the stone-sweeping device on the bogie at the lower part of the train can remove the barrier on the rail track out of the track, and when the outline dimension of the barrier on the rail track is higher than the lower plane of the barrier device, the barrier is removed out of the track by the barrier device, thereby ensuring safe running of the train. In order to ensure that the barrier in the prior art can effectively remove barriers, the barrier with the structure is often arranged in a shovel shape, and the barrier with the structure can seriously block and drag the air at the bottom of a train body when the barrier moves at a high speed along with the train, so that the running of the train is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the barrier removal diffuser for the train, which is beneficial to gas passing through so as to reduce the blocking and dragging phenomena of the gas flow at the bottom of the train body.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a arrange barrier diffuser for train, is including installing in the below of train head and/or afterbody and being used for cleaing away the barrier structure of arranging of track obstacle, it is partly close the surrounding structure to arrange the barrier structure and be equipped with the diffusion structure that is used for guiding the gas flow direction and commutating gas in the region that the barrier structure encloses.
As a further improvement of the above technical scheme:
the barrier removing structure is formed by connecting a middle section and two side sections; the middle section is formed with an opening for gas to pass through; the side sections are positioned on two sides of the middle section and form a semi-encircling structure together.
The width of the opening is consistent with the width of the middle section, and the opening is internally tangent along the side edge of the opening to form the plane inner side surface of the side section; the outer side surface of the obstacle removing structure is streamline.
The diffusion structure comprises a plurality of symmetrical and parallel fins which are distributed along the air flow direction; the included angle alpha formed by the side end edge of the wing panel and the bottom surface of the wing panel is 60-120 degrees.
The diffusion structure further comprises a diffusion surface used for being connected with the wing panel, the diffusion surface is inclined and positioned above the wing panel, and one end edge of the diffusion surface is overlapped with the upper edge of the opening; the diffusion surface is formed by splicing a plane section I and a curved surface section I; one end edge of the first plane section coincides with the upper edge of the opening, and one end of the first curved surface section is in smooth transition with the first plane section.
The barrier removal diffuser further comprises an outer diffusion structure which protrudes outwards from the diffusion structure and is used for guiding the gas to flow and rectifying; the width of the outdiffusion structure is smaller than the width of the opening.
The outer diffusion structure comprises a flow guide plate and a plurality of outer fins; the inner side of the guide plate is connected with the lower end of the wing panel, and the outer side of the guide plate is overhanging outwards and upwards; the outer fins are symmetrically formed on the lower side of the guide plate and are parallel to the fins; the included angle beta formed by the side end edge of the outer wing piece and the bottom surface of the outer wing piece ranges from 60 degrees to 120 degrees.
The guide plate is obliquely arranged, and the lower surface of the guide plate is formed by splicing a second plane section and a second curved section; the plane section II is positioned at the outer side, the curved surface section II is positioned at the inner side, and the curved surface Duan Er is smoothly transited with the plane section II, the curved surface section II and the bottom surface of the wing panel; and the inclination angle of the second plane section is smaller than or equal to the inclination angle of the diffusion surface.
The barrier removing structure further comprises a grating plate which is arranged on the opening and used for removing barriers, a plurality of grating meshes are formed on the grating plate, and gas passes through the barrier removing structure through the grating meshes.
The grid meshes are uniformly distributed.
Compared with the prior art, the invention has the advantages that:
by arranging the barrier removing structure and the diffusion structure at the same time, the barrier removing diffuser has the functions of removing rail barriers and guiding and rectifying the air flow passing through the barrier removing structure and flowing through the diffusion structure. Compared with the prior art, the obstacle deflector has the obstacle removing function and simultaneously causes the phenomenon of obstruction and dragging of the airflow at the bottom of the vehicle body, and the technical scheme provided by the embodiment rectifies the airflow with obstruction and dragging through the diffusion structure and guides the airflow to orderly pass through the obstacle removing diffuser, so that the obstruction and dragging phenomenon is eliminated or relieved, and the situation that the obstacle removing facility is arranged to interfere with the normal operation of a train is avoided.
Drawings
FIG. 1 is a schematic view of the barrier diffuser of example 1 (view I);
FIG. 2 is a schematic view of the barrier diffuser in example 1 (view II);
FIG. 3 is a schematic view of the barrier diffuser in example 2 (view I);
FIG. 4 is a schematic view of the barrier diffuser in example 2 (view II);
FIG. 5 is a schematic view of the barrier diffuser in example 2 (view three);
FIG. 6 is a schematic cross-sectional view of the barrier removal diffuser of example 2;
FIG. 7 is a schematic view of the barrier removal diffuser in example 3 (view I);
FIG. 8 is a schematic view of the barrier diffuser in example 3 (view II);
fig. 9 is a schematic view of an application scenario of the barrier removal diffuser.
The reference numerals in the drawings denote: 1. a barrier removing structure; 11. a middle section; 111. an opening; 12. a side section; 121. a planar inner surface; 13. a grating plate; 2. a diffusion structure; 21. a fin; 22. a diffusion surface; 221. a first plane section; 222. a first curved surface section; 3. an outdiffusion structure; 31. a deflector; 311. a second plane section; 312. a second curved surface section; 32. an outer fin; 4. a rail.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific examples.
Example 1
As shown in fig. 1, 2 and 9, the barrier removal diffuser for a train of the present embodiment includes a barrier removal structure 1 installed below a head and/or a tail of the train and used for removing a rail barrier, the barrier removal structure 1 is in a semi-enclosed structure, and a diffusion structure 2 used for guiding a gas flow direction and rectifying the gas is arranged in an area enclosed by the barrier removal structure 1. In the train running process, in order to avoid equipment damage caused by the fact that the obstacle drills into the bottom of the train, the obstacle removing diffuser is arranged below the end part of the train body, so that the obstacle can be arranged on two sides of the train in a collision and pushing mode. By arranging the barrier removal structure 1 and the diffusion structure 2 at the same time, the barrier removal diffuser has the functions of removing rail barriers and guiding and rectifying the air flow passing through the barrier removal structure 1 and flowing through the diffusion structure 2. Compared with the prior art, the obstacle deflector has the obstacle removing function and simultaneously causes the phenomenon of obstruction and dragging of the air flow at the bottom of the vehicle body, and the technical scheme provided by the embodiment rectifies the air flow with obstruction and dragging through the diffusion structure 2 and guides the air flow to orderly pass through the obstacle removing diffuser, so that the obstruction and dragging phenomenon is eliminated or relieved, and the phenomenon that the train is disturbed due to the arrangement of obstacle removing facilities is avoided.
In this embodiment, the barrier removing structure 1 is formed by connecting a middle section 11 and two side sections 12; the middle section 11 is formed with an opening 111 for the passage of gas; the side sections 12 are located on both sides of the middle section 11 to form a semi-encircling structure together. The two side sections 12 are positioned at two sides of the middle section 11 to form the obstacle removing structure 1 with the convex middle section 11, and gas collides with the middle section 11 in the front direction during the running process of the train, so that the phenomenon of blocking and dragging is most obvious. By providing the opening 111 in the middle section 11, the gas coming from the front can pass therethrough, so that the obstruction caused by the barrier removal structure 1 can be effectively reduced. Meanwhile, in order to ensure that the obstacle on the steel rail 4 is effectively cleared without entering the vehicle bottom through the opening 111 to affect the driving safety, the side section 12 is arranged right above the steel rail 4 in a crossing way, and when the obstacle on the steel rail is encountered in the running process of the train, the outer surface of the side section 12 at the front end of the head vehicle can collide with the obstacle so as to push the obstacle to the outer side of the vehicle body.
In this embodiment, the width of the opening 111 is identical to the width of the middle section 11, and the planar inner side 121 of the side section 12 is formed along the side edge of the opening 111. The outer side of the obstacle removing structure 1 is streamline. By setting the width of the opening 111 to be consistent with the width of the middle section 11, the gas passing through the opening along the edge of the opening directly enters the region where the side section 12 is located, in order to reduce collision and friction between the gas and the inner side surface 121 of the side section 12, the inner side surface is set to be planar, and the inner side surface 121 is parallel to the running direction and perpendicular to the ground of the side section 12, so that the gas can be discharged backwards along the inner side surface 121, and the obstruction and dragging phenomena of the gas flow at the bottom of the vehicle body are reduced. Meanwhile, the inner side surface 121 is formed by inscribing along the side edge of the opening 111, and the outer side surface of the side section 12 is a cambered surface, so that the end part of the side section 12 connected with the middle section 11 is in a sharp angle shape, and the side section 12 in the shape can further reduce friction with gas so as to reduce resistance. Further, the streamline outer side surface can obviously optimize mechanical properties, and when the obstacle removing structure 1 is positioned at the front end, the streamline appearance can effectively guide the airflow separation of incoming flow in the lower area of the vehicle body, and the obvious flow separation phenomenon is prevented, so that the obvious aerodynamic resistance increase phenomenon is prevented; and, the streamlined lateral surface just can make limit section 12 slant span to locate above rail 4 to be convenient for push out the barrier outside the automobile body.
In this embodiment, the diffusing structure 2 comprises a plurality of symmetrical and parallel fins 21, the fins 21 being arranged in the direction of the air flow. The angle alpha formed by the side edge of the wing piece 21 and the bottom surface of the wing piece 21 ranges from 60 degrees to 120 degrees. In this embodiment, the diffusing structure 2 comprises a plurality of symmetrically arranged fins 21, and each fin 21 is parallel to each other, and when the obstacle removing diffuser is installed on a train and moves along, the fins 21 keep the same with the air flow direction. By providing the fins 21, the airflow can be cut and forced to flow along the gaps of the fins 21, thereby achieving rectification. Preferably, the tips of the fins 21 are arranged in a streamline shape along the outer side of the barrier 1, and the fins 21 can be used to remove the barrier when it is located within the opening 111.
In this embodiment, the diffusing structure 2 further includes a diffusing surface 22 for connecting the fins 21, the diffusing surface 22 is inclined and located above the fins 21, and one end edge of the diffusing surface 22 coincides with the upper edge of the opening 111. The diffusion surface 22 is formed by splicing a first plane section 221 and a first curved surface section 222; one end edge of the first plane section 221 coincides with the upper edge of the opening 111, and one end of the first curved section 222 smoothly transitions with the first plane section 221. By providing the diffuser surface 22, the direction of the air flow can be guided so that the air flow smoothly passes through the diffuser structure 2, thereby increasing the flow rate. In order to avoid the occurrence of a corner, a curved section 222 is provided for a smooth transition.
Example 2
As shown in fig. 3 to 6, the second embodiment of the barrier removal diffuser for a train of the present invention is substantially the same as embodiment 1 except that: in this embodiment, the barrier diffuser further comprises an outer diffusion structure 3 protruding outwards from the diffusion structure 2 for guiding and rectifying the flow of gas. The width of the out-diffusion structure 3 is smaller than the width of the opening 111. The technical scheme disclosed in this embodiment optimizes barrier structure 1, makes it have the ability that makes the gas pass to can obviously reduce the hindrance and the dragging phenomenon of automobile body bottom air current, not only be provided with in barrier structure 1's enclosed region and be used for guiding the diffusion structure 2 of gas flow direction, and set up the outer diffusion structure 3 that links to each other with diffusion structure 2 along automobile body tip direction protrusion, can optimize the air current flow field, guide the air current flow, promote the air current outflow efficiency, alleviate the hindrance and the dragging effect that current barrier structure brought.
In this embodiment, the outer diffusing structure 3 comprises a baffle 31 and a plurality of outer fins 32; the inner side of the deflector 31 is connected with the lower end of the wing panel 21, and the outer side is overhanging outwards and upwards; the outer fins 32 are symmetrically formed on the underside of the baffle 31 and parallel to the fins 21. The angle beta formed by the side edges of the outer fins 32 and the bottom surface of the outer fins 32 ranges from 60 degrees to 120 degrees. By providing the fins 21 and the outer fins 32, it is possible to cut the air flow and force the air flow to flow along the gap between the fins 21 and the outer fins 32, thereby achieving the rectification.
In this embodiment, the baffle 31 is disposed obliquely, and the lower surface of the baffle is formed by splicing a second planar section 311 and a second curved section 312; the second planar segment 311 is located outside, the second curved segment 312 is located inside, and the second curved segment 312 and the second planar segment 311, the second curved segment 312 and the bottom surface of the wing piece 21 are all in smooth transition. The inclination angle of the second planar segment 311 is less than or equal to the inclination angle of the diffusion surface 22. By providing the baffle 31, the flow direction of the air flow can be guided so that the air flow smoothly passes through the out-diffusion structure 3, thereby increasing the flow rate. In order to avoid the bending angle between the second planar segment 311 and the diffusion structure 2, a second curved segment 312 is provided for smooth transition.
Example 3
As shown in fig. 7 and 8, a third embodiment of a barrier removal diffuser for a train of the present invention is substantially the same as embodiment 1 except that: in this embodiment, the barrier removal structure 1 further comprises a grating plate 13 mounted on the opening 111 for removing the barrier, wherein the grating plate 13 is formed with a plurality of grating holes, and the gas passes through the barrier removal structure 1 from the grating holes. The grid meshes are uniformly distributed. Through add the grid board 13 that the shaping has a plurality of grid meshes in opening 111 department, can further strengthen the barrier function of arranging, and then avoid the barrier to get into the vehicle bottom from opening 111 department, influence driving safety.
While the invention has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (7)
1. A barrier removal diffuser for a train, characterized by: the device comprises a barrier removing structure (1) which is arranged below the head part and/or the tail part of a train and is used for removing rail barriers, wherein the barrier removing structure (1) is of a semi-enclosed structure, and a diffusion structure (2) which is used for guiding the flow direction of gas and rectifying the gas is arranged in an area enclosed by the barrier removing structure (1); the obstacle removing structure (1) is formed by connecting a middle section (11) and two side sections (12); the middle section (11) is formed with an opening (111) for the passage of gas; the side sections (12) are positioned at two sides of the middle section (11) to form a semi-encircling structure together; the diffusion structure (2) comprises a plurality of symmetrical and parallel fins (21), and the fins (21) are distributed along the air flow direction; the included angle alpha formed by the side edge of the wing panel (21) and the bottom surface of the wing panel (21) is 60-120 degrees; the diffusion structure (2) further comprises a diffusion surface (22) used for connecting the fins (21), wherein the diffusion surface (22) is inclined and is positioned above the fins (21), and one end edge of the diffusion surface (22) is overlapped with the upper edge of the opening (111); the diffusion surface (22) is formed by splicing a plane section I (221) and a curved surface section I (222); one end edge of the first plane section (221) coincides with the upper edge of the opening (111), and one end of the first curved surface section (222) is in smooth transition with the first plane section (221).
2. The barrier removal diffuser for a train of claim 1, wherein: the width of the opening (111) is consistent with the width of the middle section (11), and a plane-shaped inner side surface (121) of the side section (12) is formed by cutting along the side edge of the opening (111); the outer side surface of the obstacle removing structure (1) presents a streamline shape.
3. The barrier removal diffuser for a train of claim 1, wherein: the barrier removal diffuser further comprises an outer diffusion structure (3) which protrudes outwards from the diffusion structure (2) and is used for guiding the gas to flow and rectifying; the width of the out-diffusion structure (3) is smaller than the width of the opening (111).
4. A barrier removal diffuser for a train as claimed in claim 3, wherein: the outer diffusion structure (3) comprises a flow guide plate (31) and a plurality of outer fins (32); the inner side of the guide plate (31) is connected with the lower end of the wing piece (21), and the outer side of the guide plate is outwards and upwards overhanging; the outer fins (32) are symmetrically formed on the lower side of the guide plate (31) and are parallel to the fins (21); the included angle beta formed by the side end edge of the outer wing piece (32) and the bottom surface of the outer wing piece (32) ranges from 60 degrees to 120 degrees.
5. The barrier removal diffuser for a train of claim 4, wherein: the guide plate (31) is obliquely arranged, and the lower surface of the guide plate is formed by splicing a second plane section (311) and a second curved section (312); the second plane section (311) is positioned at the outer side, the second curved section (312) is positioned at the inner side, and the second curved section (312) and the second plane section (311), the second curved section (312) and the bottom surfaces of the fins (21) are in smooth transition; the inclination angle of the second plane section (311) is smaller than or equal to the inclination angle of the diffusion surface (22).
6. The barrier removal diffuser for a train of claim 1 or 2, wherein: the barrier removing structure (1) further comprises a grating plate (13) which is arranged on the opening (111) and used for removing barriers, a plurality of grating meshes are formed on the grating plate (13), and gas passes through the barrier removing structure (1) through the grating meshes.
7. The barrier removal diffuser for a train of claim 6, wherein: the grid meshes are uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210590207.3A CN114872750B (en) | 2022-05-26 | 2022-05-26 | Barrier removing diffuser for train |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210590207.3A CN114872750B (en) | 2022-05-26 | 2022-05-26 | Barrier removing diffuser for train |
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| Publication Number | Publication Date |
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| CN114872750A CN114872750A (en) | 2022-08-09 |
| CN114872750B true CN114872750B (en) | 2023-10-20 |
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| CN202210590207.3A Active CN114872750B (en) | 2022-05-26 | 2022-05-26 | Barrier removing diffuser for train |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115626186A (en) * | 2022-10-31 | 2023-01-20 | 同济大学 | High-speed train pilot |
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