A model device for high-speed train head design

Abstract

This utility model discloses a model device for high-speed train head design, belonging to the field of high-speed train head design models. It includes a display frame with translucent glass fixedly connected to both sides. An inner frame is fixedly connected inside the display frame, and a conveyor belt is rotatably connected to the outside of the inner frame. A conveyor motor is fixedly connected to one side of the inner frame, and the main body of the train head is placed on top of the conveyor belt. The core functions of wind tunnel testing—airflow generation and flow field visualization—are integrated into a compact display case, replacing the bulky and expensive traditional wind tunnel. This significantly reduces the barrier to entry and cost. The movement of the conveyor belt simulates the forward movement of the train body. Simultaneously, the combination of dry ice smoke and airflow generated by synchronously rotating inner blades clearly and stably displays the airflow lines on the surface of the train head, making the streamlined design effect immediately apparent and creating a visually striking display.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-speed train head design model, specifically relating to a model device for high-speed train head design. Background Technology

[0002] In the design and development of high-speed trains, the aerodynamic performance of the train's front shape is crucial, as it directly affects the train's running resistance, energy consumption, noise control, and driving stability. To intuitively evaluate the streamlined effect of the train's front design, designers usually need to create a scaled-down physical model and conduct smoke streamline tests in a wind tunnel laboratory.

[0003] However, traditional wind tunnel experiments are mainly geared towards precise quantitative verification in the later stages. When conducting rapid comparison and intuitive demonstration of multiple schemes in the early stages of conceptual design, they have the following significant drawbacks: First, wind tunnel equipment itself is expensive, occupies a large area, and has high operating costs, making it difficult for all design units to easily equip themselves with it; second, the experimental process is complex, taking a long time from model fixation and flow field establishment to data acquisition, which cannot adapt to the rapid iterative design pace; in addition, the models in wind tunnel experiments are usually fixed, making it difficult to achieve flexible and interactive flow field observation and scheme demonstration, which is not conducive to internal communication and scheme review within the design team. Therefore, this utility model provides a model device for the design of high-speed train heads. Utility Model Content

[0004] The purpose of this invention is to provide a model device for the design of high-speed train heads, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a model device for the design of a high-speed train head, comprising a display frame, with translucent glass fixedly connected to both sides of the display frame, an inner frame fixedly connected inside the display frame, a conveyor belt rotatably connected to the outside of the inner frame, a conveyor motor fixedly connected to one side of the inner frame, and the main body of the train head placed on top of the conveyor belt.

[0006] In a preferred embodiment, the top of the display frame is rotatably connected to a flip cover, and the bottom of the flip cover is fixedly connected to a fixing sleeve that wraps around the outside of the front body of the vehicle.

[0007] In a preferred embodiment, both ends of the bottom of the two sides of the fixing sleeve are provided with arc-shaped hook plates, and the bottom end of each arc-shaped hook plate is rotatably connected to a guide roller.

[0008] In a preferred embodiment, the conveyor belt is fixedly connected to two rings of rubber tracks, and two rollers located on the rubber tracks are rotatably connected to both sides of the bottom of the vehicle head body.

[0009] In a preferred embodiment, an exhaust mesh is fixedly connected to one end of the display frame, a fixed cover is fixedly connected to the other end of the display frame, and a dry ice atomizer is fixedly connected to the top end of the display frame near the fixed cover. The input end of the dry ice atomizer is fixedly connected to one side of the fixed cover through a connecting pipe.

[0010] In a preferred embodiment, a rotating ring is rotatably connected inside the fixed cover, and an inner blade aligned with the front body of the vehicle is fixedly connected inside the rotating ring. External teeth are provided on the outside of the rotating ring, and a transmission gear that meshes with the external teeth is rotatably connected inside the display frame.

[0011] In a preferred embodiment, a rotating shaft is fixedly connected to the extended end of the output shaft of the conveying motor, a friction drive wheel is fixedly connected to the outside of the rotating shaft, a transmission shaft is rotatably connected to the inner wall of the display frame, a bevel gear is fixedly connected to one end of the transmission shaft, a bevel tooth portion that meshes with the bevel gear is fixedly connected to the outside of the transmission gear, and a friction driven wheel is fixedly connected to the other end of the transmission shaft. The friction driven wheel and the friction drive wheel are externally connected by a transmission belt.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This model device for high-speed train front design integrates the core functions of wind tunnel testing—airflow generation and flow field visualization—into a compact display case, replacing the bulky and expensive traditional wind tunnel. This significantly reduces the barrier to entry and cost. By simulating the movement of the train body through the conveyor belt, and by combining the airflow generated by dry ice smoke with synchronously rotating inner blades, it can clearly and stably display the airflow lines on the surface of the train front, making the streamlined design effect immediately apparent and creating a visually striking display.

[0014] This model device for the design of high-speed train heads adopts a structure including a fixed sleeve, guide rollers, and rubber rails, which ensures the stability of the train head model in a dynamic environment. Only one motor is needed to synchronously drive the conveyor belt and fan blades, ensuring the synchronization and coordination of the system operation, while making the structure more compact and the control simpler.

[0015] This model device, used for the design of high-speed train fronts, uses dry ice atomization to generate smoke. The smoke is composed of carbon dioxide, which is non-toxic, harmless, biodegradable, and leaves no residue, meeting environmental protection requirements. Furthermore, the visible smoke flows closely to the surface of the model, resulting in a better visualization effect. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2This is a side view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the fit of the structure of this utility model;

[0019] Figure 4 This is a front view of the rotating ring.

[0020] In the diagram: 1. Display frame; 101. Transparent glass; 102. Flip-top cover; 103. Exhaust screen; 2. Inner frame; 3. Conveyor motor; 301. Rotating shaft; 302. Friction drive wheel; 303. Transmission shaft; 304. Friction driven wheel; 305. Transmission belt; 4. Conveyor belt; 401. Rubber track; 5. Head unit; 6. Fixing sleeve; 601. Arc-shaped hook plate; 602. Guide roller; 7. Dry ice atomizer; 701. Connecting pipe; 8. Rotating ring; 801. External gear; 802. Inner blade; 9. Transmission gear; 901. Conical tooth section; 10. Conical gear. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] Please see Figures 1-4 This utility model provides a model device for the design of a high-speed train head, including a display frame 1, with light-transmitting glass 101 fixedly connected to both sides of the display frame 1, an inner frame 2 fixedly connected inside the display frame 1, a conveyor belt 4 rotatably connected to the outside of the inner frame 2, a conveyor motor 3 fixedly connected to one side of the inner frame 2, a train head body 5 placed on top of the conveyor belt 4, a flip cover 102 rotatably connected to the top of the display frame 1, a fixing sleeve 6 fixedly connected to the bottom of the flip cover 102 and wrapped around the outside of the train head body 5, arc-shaped hook plates 601 provided at both ends of the bottom of both sides of the fixing sleeve 6, a guide roller 602 rotatably connected to the bottom end of each arc-shaped hook plate 601, two rings of rubber rails 401 fixedly connected to the outside of the conveyor belt 4, and two rollers located on the rubber rails 401 rotatably connected to both sides of the bottom of the train head body 5.

[0024] The operator opens the flip cover 102 on the top of the display frame 1 and places the high-speed train head body 5 on the conveyor belt 4. At this time, the rollers rotatably connected to the bottom sides of the head body 5 will be embedded in the two rings of rubber tracks 401 fixedly connected to the outside of the conveyor belt 4. The rubber tracks 401 provide a stable rolling path for the rollers, ensuring that the head body 5 is accurately placed and stably positioned on the conveyor belt 4. The flip cover 102 is then closed, and the fixing sleeve 6 fixedly connected to the bottom of the flip cover 102 will wrap around the outside of the head body 5. The arc-shaped hook plates 601 at both ends of the bottom of the fixing sleeve 6 will limit the head body 5 from both sides. The guide rollers 602 at the bottom of the arc-shaped hook plates 601 are rotatably connected, which can reduce friction with the sides of the head body 5 and ensure that the head body 5 will not shift left or right during the dynamic display, thus achieving stable fixation of the head body 5.

[0025] Please see Figures 1-4 In this embodiment, an exhaust mesh 103 is fixedly connected to one end of the display frame 1, and a fixed cover is fixedly connected to the other end of the display frame 1. A dry ice atomizer 7 is fixedly connected to the top end of the display frame 1 near the fixed cover. The input end of the dry ice atomizer 7 is fixedly connected to one side of the fixed cover via a connecting pipe 701. A rotating ring 8 is rotatably connected inside the fixed cover. An inner blade 802 aligned with the front body 5 is fixedly connected inside the rotating ring 8. An external tooth 801 is provided on the outside of the rotating ring 8. A device that meshes with the external tooth 801 is rotatably connected inside the display frame 1. A rotating shaft 301 is fixedly connected to the extended end of the output shaft of the transmission gear 9 and the conveying motor 3. A friction drive wheel 302 is fixedly connected to the outside of the rotating shaft 301. A transmission shaft 303 is rotatably connected to the inner wall of the display frame 1. A bevel gear 10 is fixedly connected to one end of the transmission shaft 303. A bevel tooth 901 that meshes with the bevel gear 10 is fixedly connected to the outside of the transmission gear 9. A friction driven wheel 304 is fixedly connected to the other end of the transmission shaft 303. The friction driven wheel 304 and the friction drive wheel 302 are connected by a transmission belt 305.

[0026] Start the dry ice atomizer 7. The dry ice atomizer 7 atomizes dry ice into visible smoke. The smoke is delivered to the fixed cover fixedly connected to the other end of the display frame 1 through the connecting pipe 701. Start the conveyor motor 3. The rotating shaft 301 fixedly connected to the extended end of the output shaft of the conveyor motor 3 starts to rotate. It drives the friction drive wheel 302 fixed outside the rotating shaft 301 to rotate. The friction drive wheel 302 drives the friction driven wheel 304 to rotate through the transmission belt 305. The friction driven wheel 304 is fixed to one end of the transmission shaft 303, thereby driving the transmission shaft 303 to rotate.

[0027] The bevel gear 10 fixedly connected to one end of the drive shaft 303 meshes with the bevel tooth 901 fixedly connected to the outside of the drive gear 9. When the drive shaft 303 rotates, the meshing of the bevel gear 10 and the bevel tooth 901 drives the drive gear 9 to rotate. The drive gear 9 meshes with the external teeth 801 opened on the outside of the rotating ring 8 inside the fixed cover. The rotation of the drive gear 9 will drive the rotating ring 8 to rotate inside the fixed cover. The inner blade 802 fixedly connected inside the rotating ring 8 will rotate accordingly, generating airflow pointing towards the head body 5, simulating the headwind when the train is running.

[0028] Dry ice smoke is blown by the airflow generated by the inner blades 802 inside the fixed cover, forming a stable smoke flow field. The smoke flows from one end of the fixed cover to the exhaust net 103 fixedly connected to the other end of the display frame 1. The exhaust net 103 is used to exhaust the smoke and maintain the airflow circulation inside the display frame 1.

[0029] Driven by the conveyor belt 4, the main body 5 of the train head moves forward in a simulated train manner. Visual smoke flows closely along the surface of the main body 5 of the train head, clearly showing the airflow lines on the surface of the train head. Designers can directly observe the airflow lines through the light-transmitting glass 101 fixedly connected to both sides of the display frame 1.

[0030] The working principle and usage process of this utility model are as follows: First, the operator opens the flip cover 102 on the top of the display frame 1, places the high-speed train head body 5 on the conveyor belt 4, and its bottom roller is embedded in the rubber track 401 to ensure stable position. Then, the flip cover 102 is closed, the fixing sleeve 6 wraps the head body 5, the arc-shaped hook plate 601 limits the position, and the guide roller 602 reduces friction and prevents deviation.

[0031] When the dry ice atomizer 7 is started, the smoke is transported to the fixed cover through the connecting pipe 701. The conveyor motor 3 is started, and the rotating shaft 301 drives the friction drive wheel 302 to rotate. The drive belt 305 drives the friction driven wheel 304 and the drive shaft 303 to rotate. The drive shaft 303 drives the drive gear 9 to rotate through the bevel gear 10 and the bevel tooth 901, which in turn causes the rotating ring 8 to rotate. The inner blades 802 generate an airflow that simulates a headwind.

[0032] Dry ice smoke is blown by airflow to form a stable flow field, flowing from the fixed cover to the exhaust net 103 to maintain airflow circulation. The conveyor belt 4 drives the front body 5 to simulate forward movement. The visual smoke closely adheres to the surface to show the airflow flow lines, which can be directly observed by the designer through the light-transmitting glass 101.

[0033] It should be noted in the above scheme that the conveyor belt 4 and the dry ice atomizer 7 can be selected from existing technologies according to the actual situation. They are all existing public products, so they are not described in detail. During use, the conveyor belt 4 drives the wheels at the bottom of the trolley body 5 to rotate while the trolley body 5 itself is stationary. Then, by controlling the speed of the conveyor motor 3 (which is existing technology), the inner blades 802 are driven to rotate at different speeds, so that the trolley body 5 comes into contact with airflow of different wind speeds.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A model device for designing the front of a high-speed train, comprising a display frame (1), characterized in that: The display frame (1) is fixedly connected to both sides with transparent glass (101), the display frame (1) is fixedly connected to the inside with an inner frame (2), the inner frame (2) is rotatably connected to the outside with a conveyor belt (4), the inner frame (2) is fixedly connected to one side with a conveyor motor (3), and the top of the conveyor belt (4) is placed with a car head body (5).

2. The model device for high-speed train head design according to claim 1, characterized in that: The top of the display frame (1) is rotatably connected to a flip cover (102), and the bottom of the flip cover (102) is fixedly connected to a fixing sleeve (6) that wraps around the front body (5).

3. The model device for high-speed train head design according to claim 2, characterized in that: Both ends of the bottom of the fixed sleeve (6) are provided with arc-shaped hook plates (601), and the bottom end of each arc-shaped hook plate (601) is rotatably connected with a guide roller (602).

4. The model device for high-speed train head design according to claim 3, characterized in that: The conveyor belt (4) is fixedly connected to two rings of rubber tracks (401), and the bottom of the vehicle head body (5) is rotatably connected to two rollers located on the rubber tracks (401) on both sides.

5. A model device for high-speed train head design according to claim 1, characterized in that: One end of the display frame (1) is fixedly connected to an exhaust net (103), and the other end of the display frame (1) is fixedly connected to a fixed cover. The top end of the display frame (1) near the fixed cover is fixedly connected to a dry ice atomizer (7). The input end of the dry ice atomizer (7) is fixedly connected to one side of the fixed cover through a connecting pipe (701).

6. A model device for high-speed train head design according to claim 5, characterized in that: The fixed cover is rotatably connected to a rotating ring (8), and an inner blade (802) aligned with the front body (5) is fixedly connected inside the rotating ring (8). An external tooth (801) is provided on the outside of the rotating ring (8), and a transmission gear (9) meshing with the external tooth (801) is rotatably connected inside the display frame (1).

7. A model device for high-speed train head design according to claim 6, characterized in that: A rotating shaft (301) is fixedly connected to the extended end of the output shaft of the conveying motor (3). A friction drive wheel (302) is fixedly connected to the outside of the rotating shaft (301). A transmission shaft (303) is rotatably connected to the inner wall of the display frame (1). A bevel gear (10) is fixedly connected to one end of the transmission shaft (303). A bevel tooth (901) that meshes with the bevel gear (10) is fixedly connected to the outside of the transmission gear (9). A friction driven wheel (304) is fixedly connected to the other end of the transmission shaft (303). The friction driven wheel (304) and the friction drive wheel (302) are connected by a transmission belt (305).

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