A train bogie bottom covering structure and train

Abstract

The present invention discloses a train bogie bottom covering structure and a train, comprising: a guide assembly, comprising two symmetrically arranged guide units, the guide units comprising a first driving component and a guide plate, the first driving component driving the guide plate to reciprocate up and down; a protective assembly, comprising two symmetrically arranged protective units, the protective units being arranged on the guide plates and located between the two guide plates, the protective units comprising a second driving component and a bottom plate, the two second driving components driving the two bottom plates to move away from or toward each other, so as to connect or separate the two bottom plates. The second driving component drives the bottom plates toward each other, so that the two bottom plates are docked, and cooperates with the two guide plates to form a covering structure in the train bogie area, which can prevent incoming gas from entering the bottom, reduce the turbulent flow of air at the bottom, and improve driving efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation trains, and in particular to a bottom covering structure of a train bogie and a train. Background Art

[0002] As the speed of high-speed EMUs continues to increase, the impact of air resistance on train operation becomes increasingly significant. When the train speed reaches a certain level, air resistance will become the main source of resistance to train operation, consuming a large amount of traction energy. The bogie, as a key component of the train, is located at the bottom of the train, and the airflow around it is complex. The air flow in the bogie area is prone to produce vortices and separation, resulting in greater aerodynamic resistance. At present, some train bogie areas use side skirt devices or integrated full-coverage structures, but the local covering has limited improvement on the overall complex airflow field of the bogie, and the drag reduction effect is not obvious. The integrated full-coverage structure has a more complex manufacturing process and higher cost, which increases maintenance costs. 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 provides a train bogie bottom covering structure and a train, which can reduce aerodynamic resistance in the bogie area, improve driving efficiency, and facilitate inspection and maintenance.

[0004] According to the first aspect of the present invention, the bottom covering structure of the train bogie includes: a guide assembly including two symmetrically arranged guide units, the guide unit including a first driving component and a guide plate, the first driving component drives the guide plate to reciprocate up and down; a protective assembly including two symmetrically arranged protective units, the protective unit is arranged on the guide plate and located between the two guide plates, the protective unit includes a second driving component and a bottom plate, the two second driving components drive the two bottom plates to move away from or closer to each other to connect or separate the two bottom plates.

[0005] The bottom covering structure of the train bogie according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: the second driving component drives the bottom plates closer to each other, so that the two bottom plates are docked, and cooperate with the two guide plates to form a covering structure in the train bogie area, which can prevent the incoming gas from entering the bottom, reduce the turbulent flow of the bottom air, and improve driving efficiency.

[0006] According to some embodiments of the present invention, the guide plate includes a first connecting plate and a second connecting plate, the first connecting plate is connected to the second connecting plate, and the first connecting plate intersects with the second connecting plate.

[0007] According to some embodiments of the present invention, the first driving component includes a hydraulic driving component and a first slide rail, the guide plate is slidably connected to the first slide rail, and the movable end of the hydraulic driving component is connected to the guide plate.

[0008] According to some embodiments of the present invention, the base plate includes a plurality of chain links, and the plurality of chain links are hinged in sequence to form the base plate.

[0009] According to some embodiments of the present invention, planes are provided on both sides of the chain link, and the planes of two adjacent chain links are in contact with each other.

[0010] According to some embodiments of the present invention, the second driving component includes a motor and a rotating shaft, one end of the base plate is wound around the rotating shaft, and the motor drives the rotating shaft to rotate so that the rotating shaft is rolled up or extended from the base plate.

[0011] According to some embodiments of the present invention, the protective assembly further includes a locking component, which includes a snap piece and a snap knot. The snap piece is hinged on one of the base plates, and the snap knot is telescopically arranged on the other base plate. The snap piece can be fastened with the snap knot to dock the two base plates.

[0012] According to some embodiments of the present invention, the buckle piece is provided with a buckle slot, and the buckle knot passes through the buckle slot and is buckled with the buckle piece.

[0013] According to some embodiments of the present invention, the protective assembly includes a clamping device, which is arranged between the two guide plates. The clamping device includes a mounting frame and a clamping hand, which is arranged on the mounting frame and faces the base plate.

[0014] A train according to an embodiment of the second aspect of the present invention includes the train bogie bottom cladding structure described in the embodiment of the first aspect of the present invention.

[0015] The train according to the embodiment of the second aspect of the present invention has at least the following beneficial effects: the second driving component drives the bottom plates closer to each other, so that the two bottom plates are connected, and cooperates with the two guide plates to form a covering structure in the bogie area of ​​the train, which can prevent the incoming gas from entering the bottom, reduce the turbulent flow of the bottom air, and improve driving efficiency.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1 A schematic diagram of a bottom cladding structure of a train bogie according to an embodiment of the first aspect of the present invention;

[0019] Figure 2 for Figure 1 A partial enlarged schematic diagram of point A in the middle;

[0020] Figure 3 Schematic diagram of a locking component in a bottom covering structure of a train bogie according to an embodiment of the first aspect of the present invention;

[0021] Figure 4 Schematic diagram of the cooperation between the bottom cladding structure of the train bogie and the train bogie according to the embodiment of the first aspect of the present invention.

[0022] Description of reference numerals:

[0023] Hydraulic drive member 110; deflector plate 120; first connecting plate 121; second connecting plate 122; second drive member 210; motor 211; rotating shaft 212; bottom plate 220; chain link 221; arc portion 222; right-angle portion 223; flat surface 224; snap plate 231; snap knot 232; slot 233; clamping device 300; clamping plate 311; mounting bracket 320; DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting 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.

[0028] Reference Figure 1 The bottom covering structure of a train bogie of an embodiment of the first aspect of the present invention includes: a guide assembly, including two symmetrically arranged guide units, the guide unit including a first driving component and a guide plate 120, the first driving component driving the guide plate 120 to reciprocate up and down; a protective assembly, including two symmetrically arranged protective units, the protective unit is arranged on the guide plate 120 and is located between the two guide plates 120, the protective unit includes a second driving component 210 and a bottom plate 220, the two second driving components 210 drive the two bottom plates 220 to move away from or close to each other so that the two bottom plates 220 are connected or separated.

[0029] Before the train departs, the second drive component 210 drives the bottom plates 220 to extend and move closer together. The two bottom plates 220 dock and, in conjunction with the two guide plates 120, form a wrapping structure around the train's bogie area. This prevents incoming air from entering the bottom, reduces turbulent air flow at the bottom, and improves travel efficiency. Furthermore, the structure can be combined with the train's skirts to create a fully enclosed structure around the bogie area at the bottom of the train, further enhancing drag reduction and flow diversion, further improving travel efficiency. Expanding the bottom plates 220 also prevents debris from being drawn into the bogie, improving driving safety. Furthermore, when the train enters the station for maintenance and overhaul, the second drive component 210 drives the two bottom plates 220 to separate and retract. The first drive component then drives the guide plates 120 upward, storing the guide plates 120 and protective components at the bottom of the train for automatic recovery, facilitating train maintenance and parts replacement.

[0030] It is understandable that, referring to Figure 1 The guide plate 120 includes a first connecting plate 121 and a second connecting plate 122. The first connecting plate 121 is connected to the second connecting plate 122. The first connecting plate 121 and the second connecting plate 122 intersect to form a sharp angle. The guide plate 120 forms a wedge-shaped guide structure. When the train is running, the wedge-shaped surface blocks the bottom accelerated airflow from flowing through the bogie part, reducing the resistance of the train and improving driving efficiency.

[0031] It is understandable that, referring to Figure 1The first drive component includes a hydraulic drive component 110 and a first slide rail (not shown in the drawings). The deflector 120 is slidably connected to the first slide rail, and the movable end of the hydraulic drive component 110 is connected to the deflector 120. The hydraulic component drives the deflector 120 to move up and down. The deflector 120 can move vertically up and down or tilted upward and downward along the slide rail. During use, the hydraulic drive component drives the deflector 120 downward along the slide rail, and then the second drive component 210 drives the bottom plate 220 to extend to form a covering structure. When the train needs to enter the station for maintenance, the second drive component 210 drives the bottom plate 220 to move and retract the bottom plate 220. Then, the first drive component drives the deflector 120 upward again, and the deflector 120 and the protective component are stored at the bottom of the train, making it easier for relevant personnel to inspect the train.

[0032] It is understandable that, referring to Figure 1 and Figure 3 The base plate 220 includes a plurality of chain links 221, which are hinged in sequence to form the base plate 220. The second drive component 210 includes a motor 211 and a rotating shaft 212. One end of the base plate 220 is wound around the rotating shaft 212. The motor 211 drives the rotating shaft 212 to rotate, causing the rotating shaft 212 to reel in or extend from the base plate 220. The chain links 221 are hinged to each other. When the base plate 220 is disconnected, the motor 211 drives the rotating shaft 212 to rotate, and the base plate 220 is retracted like a scroll. The base plate 220 is reeled onto the rotating shaft 212, saving space and facilitating maintenance of the train.

[0033] It is understandable that, referring to Figure 1 and Figure 3 The chain links 221 are provided with flat surfaces 224 on both sides, and the flat surfaces 224 of two adjacent chain links 221 are aligned. The upper side of the chain links 221 is provided with a circular arc portion 222, and the hinge axis of the chain links 221 is located near the upper side. When the base plate 220 is rolled up, the chain links 221 can be rolled up. The lower side of the chain links 221 is provided with a right-angle portion 223. When unfolded, the flat surfaces 224 of two adjacent chain links 221 are aligned. The lower right-angle portion 223 prevents the chain links 221 from rotating downward, thereby preventing the base plate 220 from bending downward.

[0034] It is understandable that, referring to Figure 1 and Figure 3The protective assembly also includes a locking component, which includes a snap-on piece 231 and a snap-on knot 232. The snap-on piece 231 is hinged on one of the base plates 220, and the snap-on knot 232 is telescopically disposed on the other base plate 220. The snap-on piece 231 can be snapped with the snap-on knot 232 to dock the two base plates 220. The snap-on piece 231 has a slot 233, and the snap-on knot 232 passes through the slot 233 and snaps into the snap-on piece 231. The second driving component 210 drives the bottom plate 220 to extend, and the end of the snap piece 231 is provided with an arc-shaped guide portion. When the two bottom plates 220 are docked, the snap piece 231 and the snap knot 232 are extended and contacted, so that the snap knot 232 slides relatively along the arc-shaped portion, driving the snap piece 231 to rotate in the vertical plane 224 until the snap knot 232 falls into the slot 233, completing the engagement between the snap piece 231 and the snap knot 232, and connecting the bottom plates 220 on both sides together, thereby improving the docking stability of the two bottom plates 220 and forming an overall covering.

[0035] It is understandable that, referring to Figure 1 and Figure 3 When the two bottom plates 220 are separated, the electromagnet drives the buckle knot 232 to retract into the chain link 221, and the buckle knot 232 can be disengaged from the slot 233, releasing the buckle connection between the buckle piece 231 and the buckle knot 232, unlocking the two bottom plates 220, and the two bottom plates 220 can be reeled up.

[0036] It is understandable that, referring to Figure 1 and Figure 2 The protective assembly includes a gripping device 300, which is arranged between the two guide plates 120. The gripping device 300 includes a mounting frame 320 and a gripping hand. The mounting frame 320 is connected to the train, and the gripping hand is arranged on the mounting frame 320, with the gripping hand facing the bottom plate 220. The motor 211 drives the rotating shaft 212 to rotate. The rotating shaft 212 rotates to extend the bottom plates 220, and the two bottom plates 220 approach the gripping device. The two bottom plates 220 extend into the gripping hand, and then the gripping hand clamps the bottom plates 220, so that the bottom plates 220 maintain balance, improve the success rate of the two bottom plates 220 docking, and prevent the two bottom plates 220 from disconnecting during driving, further improving the connection stability of the two bottom plates 220.

[0037] It is also understandable that, with reference to Figure 1 and Figure 2 The clamping hand includes two upper and lower distributed clamping plates 311, the two clamping plates 311 are hinged to the mounting frame 320, and the two clamping hands are symmetrically arranged. After the base plate 220 is inserted into the clamping hand, it passes between the two clamping plates 311, so that the clamping hand avoids the docking of the two base plates 220.

[0038] Reference Figure 4A train according to a second embodiment of the present invention includes the train bogie bottom covering structure according to the first embodiment of the present invention, which is installed beneath the bogie. Before the train departs, the second drive component 210 drives the bottom plates 220 to extend and move closer together. The two bottom plates 220 mate with each other and, in conjunction with the two deflectors 120, form a covering structure around the bogie area. This prevents incoming air from entering the bottom, reduces turbulent air flow, and improves travel efficiency. Furthermore, the structure can be combined with the train's skirt to fully enclose the bogie area beneath the train, further enhancing drag reduction and airflow diversion, further improving travel efficiency. Deploying the bottom plates 220 also prevents debris from being drawn into the bogie, improving driving safety. Furthermore, when the train enters a station for maintenance and inspection, the second drive component 210 drives the two bottom plates 220 to separate and retract. The first drive component then drives the deflectors 120 upward, storing the deflectors 120 and the protective assembly beneath the train for automatic recovery, facilitating train maintenance and part replacement.

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A train bogie bottom covering structure, characterized in that: include: The guide assembly includes two symmetrically arranged guide units, each of which includes a first driving component and a guide plate, wherein the first driving component drives the guide plate to reciprocate up and down; A protection assembly comprising two symmetrically arranged protection units, the protection units being arranged on the guide plates and located between the two guide plates, the protection units comprising a second driving component and a bottom plate, the two second driving components driving the two bottom plates to move away from or toward each other, so as to connect or separate the two bottom plates; Before the train departs, the second driving component drives the bottom plates to extend and approach each other, and the two bottom plates are docked together, cooperating with the two guide plates to form a covering structure in the train bogie area; When the train enters the station for maintenance and inspection, the second driving component drives the two bottom plates to separate and store them, and then the first driving component drives the guide plate to rise, and stores the guide plate and protective assembly at the bottom of the train.

2. The train bogie bottom covering structure according to claim 1, characterized in that: The guide plate includes a first connecting plate and a second connecting plate, the first connecting plate is connected to the second connecting plate, and the first connecting plate intersects with the second connecting plate.

3. The train bogie bottom covering structure according to claim 1, characterized in that: The first driving component includes a hydraulic driving component and a first slide rail. The guide plate is slidably connected to the first slide rail. The movable end of the hydraulic driving component is connected to the guide plate.

4. The train bogie bottom covering structure according to claim 1, characterized in that: The base plate includes a plurality of chain links, and the plurality of chain links are hinged in sequence to form the base plate.

5. The train bogie bottom covering structure according to claim 4, characterized in that: Planes are provided on both sides of the chain link, and the planes of two adjacent chain links are in contact with each other.

6. The train bogie bottom covering structure according to claim 1, characterized in that: The second driving component includes a motor and a rotating shaft. One end of the base plate is wound around the rotating shaft. The motor drives the rotating shaft to rotate so that the rotating shaft is rolled up or extended out of the base plate.

7. The train bogie bottom covering structure according to claim 6, characterized in that: The protective assembly also includes a locking component, which includes a snap piece and a snap knot. The snap piece is hinged on one of the base plates, and the snap knot is telescopically arranged on the other base plate. The snap piece can be fastened with the snap knot to dock the two base plates.

8. The train bogie bottom covering structure according to claim 7, characterized in that: The buckle piece is provided with a buckle slot, and the buckle knot passes through the buckle slot and is buckled with the buckle piece.

9. The train bogie bottom covering structure according to claim 1, characterized in that: The protection component includes a clamping device, which is arranged between the two guide plates. The clamping device includes a mounting frame and a clamping hand, which is arranged on the mounting frame and faces the bottom plate.

10. A train, characterized in that The invention comprises a train bogie bottom covering structure as described in any one of claims 1 to 9.

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