Train bogie bottom coating structure and train

Abstract

The invention discloses a train bogie bottom coating structure and a train, the train bogie bottom coating structure comprises a flow guide assembly, the flow guide assembly comprises two symmetrically arranged flow guide units, each flow guide unit comprises a first driving part and a flow guide plate, and the first driving part drives the flow guide plate to reciprocate up and down; and the protection assembly comprises two protection units which are symmetrically arranged, the protection units are arranged on the flow guide plates and located between the two flow guide plates, each protection unit comprises a second driving part and a bottom plate, and the two second driving parts drive the two bottom plates to be away from each other or close to each other so that the two bottom plates can be connected or separated. The second driving part drives the bottom plates to be close to each other, so that the two bottom plates are in butt joint and matched with the two flow guide plates to form a coating structure in a train bogie area, incoming flow gas can be prevented from entering the bottom, disordered flow of bottom air is reduced, and the running efficiency is improved.

Description

Technical Field

[0001] The 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 more and more 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. As a key component of the train, the bogie 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 proposes a train bogie bottom covering structure and a train, which can reduce the aerodynamic resistance of the bogie area, improve the driving efficiency, and facilitate inspection and maintenance.

[0004] According to the first aspect of the present invention, the bottom cladding structure of the train bogie includes: a guide assembly, including two symmetrically arranged guide units, the guide unit includes 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 close to each other so as to connect or separate the two bottom plates.

[0005] The train bogie bottom covering structure according to the first aspect of the present invention has at least the following beneficial effects: the second driving component drives the bottom plates to approach each other, so that the two bottom plates are connected, 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 out of the base plate.

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

[0013] According to some embodiments of the present invention, the protection assembly includes a gripping device, which is arranged between the two guide plates. The gripping device includes a mounting frame and a clamping hand, and the clamping hand 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 comprises the train bogie bottom cladding structure as 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 to approach each other, so that the two bottom plates are connected, 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 the driving efficiency.

[0016] 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

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 A schematic diagram of a bottom covering structure of a train bogie according to an embodiment of the first aspect of the present invention; Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A; Figure 3 A 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; Figure 4 A schematic diagram of the cooperation between the train bogie bottom covering structure and the train bogie according to an embodiment of the first aspect of the present invention.

[0018] Description of reference numerals: Hydraulic drive member 110; guide 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; plane 224; snap piece 231; snap knot 232; snap groove 233; clamping device 300; clamping plate 311; mounting frame 320; DETAILED DESCRIPTION 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.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used 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.

[0021] 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.

[0022] Reference Figure 1 The bottom covering structure of a train bogie of the first aspect of the present invention comprises: a guide assembly, comprising two symmetrically arranged guide units, the guide unit comprising a first driving component and a guide plate 120, the first driving component driving the guide plate 120 to reciprocate up and down; a protection assembly, comprising two symmetrically arranged protection units, the protection unit being arranged on the guide plate 120 and located between the two guide plates 120, the protection unit comprising a second driving component 210 and a bottom plate 220, the two second driving components 210 driving the two bottom plates 220 to move away from or close to each other so as to connect or separate the two bottom plates 220.

[0023] Before the train departs, the second driving component 210 drives the bottom plate 220 to extend and approach each other, and the two bottom plates 220 are butted together, and cooperate with the two guide plates 120 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 the driving efficiency. In addition, it can also be matched with the skirt of the train to form a fully surrounded structure in the bogie area at the bottom of the train, which can further improve the drag reduction and diversion effect, further improve the driving efficiency, and the unfolding of the bottom plate 220 can also prevent debris from being rolled into the bogie, thereby improving driving safety. In addition, when the train enters the station for maintenance and overhaul, the second driving component 210 drives the two bottom plates 220 to separate and store them, and then the first driving component drives the guide plate 120 to rise, and the guide plate 120 and the protective assembly are stored at the bottom of the train, realizing automatic recovery, which is convenient for the overhaul and replacement of parts of the train.

[0024] 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, thereby reducing the resistance of the train and improving driving efficiency.

[0025] It is understandable that, referring to Figure 1The first driving component includes a hydraulic driving component 110 and a first slide rail (not shown in the drawings), the guide plate 120 is slidably connected to the first slide rail, and the movable end of the hydraulic driving component 110 is connected to the guide plate 120. The guide plate 120 is driven up and down by the hydraulic component, and the guide plate 120 can move up and down vertically or move up and down obliquely along the slide rail. When in use, the hydraulic driving component drives the guide plate 120 to move downward along the slide rail, and then the second driving 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 driving component 210 drives the bottom plate 220 to move, retracts the bottom plate 220, and then the first driving unit drives the guide plate 120 to move upward, and the guide plate 120 together with the protective component are stored at the bottom of the train, so that relevant personnel can inspect the train.

[0026] It is understandable that, referring to Figure 1 and Figure 3 The bottom plate 220 includes a plurality of chain links 221, which are hinged in sequence to form the bottom plate 220. The second driving component 210 includes a motor 211 and a rotating shaft 212. One end of the bottom plate 220 is wound around the rotating shaft 212. The motor 211 drives the rotating shaft 212 to rotate, so that the rotating shaft 212 is rolled up or extended out of the bottom plate 220. The chain links 221 are hinged to each other, the bottom plate 220 is disconnected, the motor 211 drives the rotating shaft 212 to rotate, and the bottom plate 220 is recovered like a scroll. The bottom plate 220 is rolled up onto the rotating shaft 212, which saves space and facilitates relevant personnel to inspect and repair the train.

[0027] It is understandable that, referring to Figure 1 and Figure 3 , planes 224 are provided on both sides of the chain link 221, and the planes 224 of two adjacent chain links 221 are in contact with each other. A circular arc portion 222 is provided on the upper side of the chain link 221, and the hinge axis of the chain link 221 is provided close to the upper side. When the bottom plate 220 is rolled up, the chain link 221 can be rolled up. A right angle portion 223 is provided on the lower side of the chain link 221. When unfolded, the planes 224 of two adjacent chain links 221 are in contact with each other, and the right angle portion 223 on the lower side prevents the chain link 221 from rotating downward, thereby avoiding the bottom plate 220 from bending downward.

[0028] It is understandable that, referring to Figure 1 and Figure 3The protection 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 bottom plates 220, and the snap-on knot 232 is telescopically arranged on the other bottom plate 220. The snap-on piece 231 can be snapped with the snap-on knot 232 to dock the two bottom plates 220. The snap-on piece 231 is provided with a snap-on slot 233, and the snap-on knot 232 passes through the snap-on slot 233 and is snapped with the snap-on piece 231. The second driving component 210 drives the bottom plate 220 to extend, and an arc-shaped guide portion is provided at the end of the snap piece 231. 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 snap connection 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.

[0029] 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 separated 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 rolled up.

[0030] It is understandable that, referring to Figure 1 and Figure 2 The protection 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 gripper, the mounting frame 320 is connected to the train, and the gripper is arranged on the mounting frame 320, and the gripper faces the bottom plate 220. The motor 211 drives the rotating shaft 212 to rotate, and the rotating shaft 212 rotates to extend the bottom plate 220, and the two bottom plates 220 approach the gripping device, and the two bottom plates 220 extend into the gripper, and then the gripper clamps the bottom plate 220, so that the bottom plate 220 keeps balance, improves the success rate of the two bottom plates 220 docking, and prevents the two bottom plates 220 from being disconnected during driving, and further improves the connection stability of the two bottom plates 220.

[0031] It is also understandable that, with reference to Figure 1 and Figure 2 The gripper includes two upper and lower clamping plates 311, which are hinged to the mounting frame 320. The two grippers are symmetrically arranged. After the bottom plate 220 is inserted into the gripper, it passes between the two clamping plates 311, so that the gripper avoids the docking of the two bottom plates 220.

[0032] Reference Figure 4The train of the second embodiment of the present invention comprises the train bogie bottom covering structure of the first embodiment of the present invention, and the train bogie bottom covering structure is installed under the bogie. Before the train departs, the second driving component 210 drives the bottom plate 220 to extend and approach each other, and the two bottom plates 220 are butted, and cooperate with the two guide plates 120 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 the driving efficiency. In addition, it can also be matched with the skirt of the train to form a fully surrounded structure in the bogie area at the bottom of the train, which can further improve the drag reduction and diversion effect, further improve the driving efficiency, and the unfolding of the bottom plate 220 can also prevent debris from being rolled into the bogie, thereby improving driving safety. In addition, when the train enters the station for maintenance and overhaul, the second driving component 210 drives the two bottom plates 220 to separate and store them, and then the first driving component drives the guide plate 120 to rise, and the guide plate 120 and the protective assembly are stored at the bottom of the train, so as to achieve automatic recovery and facilitate the overhaul and replacement of parts of the train.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A train bogie bottom covering structure, characterized in that: include: A flow guide assembly includes two symmetrically arranged flow guide units, wherein the flow guide units include a first driving component and a flow guide plate, and the first driving component drives the flow guide plate to reciprocate up and down; The protection component includes two symmetrically arranged protection units, which are arranged on the guide plate and located between the two guide plates. The protection 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 approach each other so as to connect or separate the two bottom plates.

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, and 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 bottom plate includes a plurality of chain links, and the plurality of chain links are hinged in sequence to form the bottom plate.

5. The train bogie bottom covering structure according to claim 4, characterized in that: Planes are arranged 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 bottom 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 out of the bottom 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-on piece and a snap-on knot. The snap-on piece is hinged on one of the base plates, and the snap-on knot is telescopically arranged on the other base plate. The snap-on piece can be fastened with the snap-on knot to connect 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 gripping device, which is arranged between the two guide plates. The gripping device includes a mounting frame and a gripping 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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