High-speed train anti-drag apron board processing anti-drag capability experiment platform
By adjusting the skirt angle by clamping the assembly and adjusting the assembly, the heating rod and temperature detector simulate the temperature environment, the problem of difficulty in simulating the airflow state at different temperatures and angles is solved, and the accurate measurement of drag reduction ability is achieved.
Patent Information
- Application Number
- CN202422610135.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing high-speed train drag reduction skirt processing drag reduction capability experimental platform is difficult to simulate the airflow state at different temperatures and angles, resulting in inaccurate measurement of drag reduction capability.
The clamping assembly and adjustment assembly are adopted to adjust the skirt angle through the motor and the cogging plate, and combine the heating rod and the temperature detector to simulate different temperature environments to achieve precise control and measurement.
It can accurately measure the drag reduction ability of the drag reduction skirt at different temperatures and angles, simulate the complex situations in actual operation of the train, and improve the accuracy of experimental results.
Smart Images
Figure CN223259271U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a drag reduction capability test platform for processing a drag reduction skirt plate, in particular to a drag reduction capability test platform for processing a drag reduction skirt plate for a high-speed train. Background Art
[0002] Drag-reducing skirts are mainly aimed at areas such as the bottom and sides of the train that are prone to generating greater resistance. The idea is to optimize the airflow conditions at the bottom and sides of the train by installing skirts at the bottom and sides of the train. The initial skirt design was relatively simple, mainly to shield the equipment and bogies at the bottom of the train and reduce the turbulence of the bottom airflow. For example, early skirts may have been simple flat-plate structures, and their material choices were relatively limited. The main considerations were strength and basic aerodynamic performance. With the development of technology, the shape, material and installation method of the skirts have been continuously improved to better achieve the purpose of drag reduction.
[0003] In response to the above problems, existing patents have provided solutions. The existing high-speed train drag reduction skirt processing drag reduction ability test platform usually focuses on simulating the airflow velocity and pressure environment during train operation, but it is not convenient to test the drag reduction ability of the drag reduction skirt at different temperatures. In actual applications, temperature changes will affect the physical properties of the air, and thus affect the drag reduction effect of the drag reduction skirt, resulting in complex and changeable airflow conditions around the skirt, and it is impossible to accurately measure the drag reduction ability of the drag reduction skirt. Moreover, the mounting device of the drag reduction skirt model is usually designed to ensure that the skirt is tested at a specific position and angle. Its mounting bracket may only have fixed slots in the horizontal and vertical directions, and cannot flexibly adjust the angle between the skirt and the airflow direction, making it difficult to simulate various tilting, twisting and other conditions that may occur in the skirt during actual train operation, resulting in difficulty in obtaining complete airflow parameters of the skirt at different angles, which in turn affects the analysis of its drag reduction ability.
[0004] Therefore, an experimental platform for the drag reduction capability of high-speed train drag reduction skirt processing is proposed. Utility Model Content
[0005] The purpose of the present utility model is to provide a high-speed train drag reduction skirt processing drag reduction ability test platform, which can solve the problem that the existing high-speed train drag reduction skirt processing drag reduction ability test platform usually focuses on simulating the airflow velocity and pressure environment during train operation, but it is not convenient to test the drag reduction ability of the drag reduction skirt at different temperatures. In actual application, temperature changes will affect the physical properties of the air, and then affect the drag reduction effect of the drag reduction skirt, resulting in complex and changeable airflow conditions around the skirt, and it is impossible to accurately measure the drag reduction ability of the drag reduction skirt. Moreover, the mounting device of the drag reduction skirt model is usually designed to ensure that the skirt is tested at a specific position and angle. Its mounting bracket may only have fixed slots in the horizontal and vertical directions, and cannot flexibly adjust the angle between the skirt and the airflow direction, making it difficult to simulate various tilting, twisting and other conditions that may occur in the skirt during actual train operation, resulting in difficulty in obtaining complete airflow parameters of the skirt at different angles, thereby affecting the analysis of its drag reduction ability.
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-speed train drag reduction skirt processing drag reduction capability test platform, comprising a support frame, a stabilizing section is provided on the right side of the top of the support frame, a contracting section is connected to the left side of the stabilizing section, a test section is connected to the left side of the contracting section, a power section is connected to the left side of the test section, an adjustment assembly is provided on the rear side of the test section, the adjustment assembly includes a mounting frame bolted to the rear side of the test section, and a clamping assembly is provided inside the test section;
[0007] The clamping assembly includes a driving motor bolted to the inside of the test section, the output end of the driving motor is fixedly connected to a toothed plate, the outer side of the toothed plate is meshedly connected to a supporting circular plate, the top of the supporting circular plate is bolted to a placement block, both sides of the placement block are fixedly connected to fixed blocks, the bottom of the fixed block is bolted to the supporting circular plate, a placement groove is provided on the top of the placement block, the front side of the placement block is fixedly connected to the motor body, the output end of the motor body passes through the front side of the placement block, the output end of the motor body is fixedly connected to a biaxial screw, the rear side of the biaxial screw is rotatably connected to the inner side of the placement groove, the outer side of the biaxial screw is threadedly connected to a splint, and the outer side of the splint is slidably connected to the inner side of the placement groove.
[0008] Preferably, the top of the mounting frame is bolted to a support frame, the rear side of the support frame is fixedly connected to a support rod, the front side of the support rod is fixedly connected to a fan body, the front side of the support frame is fixedly connected to a heating rod, the support frame is bolted to a guide plate, the guide plate is located on the front side of the heating rod, the front side of the support frame is connected to a guide tube, and the front side of the guide tube is connected to the rear side of the test section.
[0009] Preferably, a guide plate is bolted to the rear side of the support frame, and a filter screen is fixedly connected to the rear side of the guide plate.
[0010] Preferably, a temperature detector is provided on the top of the support frame, and a detection end of the temperature detector passes through the top of the support frame and extends into the interior of the support frame.
[0011] Preferably, a positioning block is fixedly connected to the bottom side of the test section, a positioning rod is fixedly connected to the top of the positioning block, the top of the positioning rod is rotatably connected to the bottom of the supporting circular plate, a limiting plate is fixedly connected to the bottom side of the test section, the top of the limiting plate is fixedly connected to the limiting block, a limiting groove is provided at the bottom of the supporting circular plate, and the inner side of the limiting groove is slidably connected to the outer side of the limiting block.
[0012] Preferably, the front side of the test section is rotatably connected to a protective door, the front side of the protective door is bolted to a pull rod, and the front side of the protective door is provided with an observation window.
[0013] Preferably, an auxiliary block is fixedly connected to the right side of the top of the support frame, the top of the auxiliary block is bolted to the bottom of the stabilizing section, and the right side of the stabilizing section is bolted to a filter plate.
[0014] Preferably, the bottom of the support frame is fixedly connected to a mounting seat, and the inner side of the mounting seat is rotatably connected to a universal wheel.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. This application uses the motor body and clamping plate inside the clamping assembly to firmly clamp the high-speed train drag reduction skirt model, ensuring that the model will not be displaced or loosened due to airflow impact and other reasons during the experiment. It can effectively fix the skirt model. At the same time, while achieving stable clamping, the angle of the skirt model can be adjusted by driving the motor and the tooth plate to facilitate the study of the drag reduction ability of the skirt at different angles. Compared with the existing high-speed train drag reduction skirt processing drag reduction ability test platform, the angle of the skirt model can be adjusted to simulate various actual situations that may occur during the actual operation of the train.
[0017] 2. This application adjusts the use of the heating rod and the temperature detector inside the component to accurately increase or maintain a specific temperature according to experimental requirements, thereby solving the problem that existing experimental platforms are difficult to accurately control the temperature, so that the experimental results can better reflect the impact of temperature on the drag reduction capability of the drag reduction skirt in actual working conditions. Compared with the existing high-speed train drag reduction skirt processing drag reduction capability experimental platform, it can simulate the resistance of different airflow speeds and different temperature environments when the train is running, so as to accurately test the drag reduction capability of the drag reduction skirt. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is the overall structure diagram of the drag reduction capability test platform for high-speed train drag reduction skirt processing of the utility model;
[0019] Figure 2 This is a schematic structural diagram of the clamping assembly of the utility model;
[0020] Figure 3 A cutaway view of the adjustment assembly of the present invention;
[0021] Figure 4 This is a bottom view of the toothed plate and the supporting circular plate of the utility model;
[0022] Figure 5 This is a cutting diagram of the support frame of the present invention.
[0023] In the figure, 1, support frame; 2, stabilizing section; 3, contraction section; 4, test section; 5, clamping assembly; 501, driving motor; 502, tooth plate; 503, supporting circular plate; 504, placement block; 505, fixing block; 506, placement slot; 507, motor body; 508, biaxial screw; 509, clamping plate; 6, adjustment assembly; 601, mounting frame; 602, support frame; 603, support rod; 604 , fan body; 605, heating rod; 606, guide plate; 607, guide tube; 608, guide plate; 609, filter plate; 610, temperature detector; 7, power section; 8, positioning block; 9, positioning rod; 10, limit plate; 11, limit block; 12, limit slot; 13, protective door; 14, pull rod; 15, observation window; 16, auxiliary block; 17, filter plate; 18, mounting seat; 19, universal wheel. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] See also Figure 1-5 , this utility model provides a technical solution:
[0026] A high-speed train drag reduction skirt processing drag reduction capability test platform includes a support frame 1, a stabilizing section 2 is provided on the right side of the top of the support frame 1, a contracting section 3 is connected to the left side of the stabilizing section 2, a test section 4 is connected to the left side of the contracting section 3, and a power section 7 is connected to the left side of the test section 4. An adjustment assembly 6 is provided on the rear side of the test section 4, and the adjustment assembly 6 includes a mounting frame 601 bolted to the rear side of the test section 4. A clamping assembly 5 is provided inside the test section 4;
[0027] The clamping assembly 5 includes a driving motor 501 bolted to the inside of the test section 4, and the output end of the driving motor 501 is fixedly connected to a toothed plate 502, and the outer side of the toothed plate 502 is meshedly connected to a supporting circular plate 503, and the top of the supporting circular plate 503 is bolted to a placement block 504, and both sides of the placement block 504 are fixedly connected to fixed blocks 505, and the bottom of the fixed block 505 is bolted to the supporting circular plate 503, and a placement groove 506 is provided on the top of the placement block 504, and the front side of the placement block 504 is fixedly connected to a motor body 507, and the output end of the motor body 507 passes through the front side of the placement block 504, and the output end of the motor body 507 is fixedly connected to a biaxial screw 508, and the rear side of the biaxial screw 508 is rotatably connected to the inner side of the placement groove 506, and the outer side of the biaxial screw 508 is threadedly connected to a splint 509, and the outer side of the splint 509 is slidably connected to the inner side of the placement groove 506.
[0028] In this embodiment: by starting the motor body 507, and then the output end of the motor body 507 rotates while driving the biaxial screw 508 to rotate, and then the outer side of the biaxial screw 508 rotates while driving the threaded clamping plate 509 to move, as the motor body 507 rotates, the biaxial screw 508 drives the clamping plate 509 to slide along the inner side of the placement groove 506, and the clamping plate 509 moves toward the inner side of the placement groove 506, thereby fixing and clamping the skirt model in the placement groove 506, and then starting the drive motor 501, and then driving the tooth plate 502 to rotate through the drive motor 501, and then the tooth plate 502 drives the meshing support circular plate 503 to rotate, and then drives the placement block 504 and the drag reduction skirt to rotate, so as to adjust the angle of the drag reduction skirt. Compared with the existing high-speed train drag reduction skirt processing drag reduction capability experimental platform, it can adjust the angle of the skirt model to simulate various actual situations that may occur in the actual operation of the skirt during the train.
[0029] Specifically, such as Figure 3As shown, the top of the mounting frame 601 is bolted with a support frame 602, the rear side of the support frame 602 is fixedly connected with a support rod 603, the front side of the support rod 603 is fixedly connected with a fan body 604, the front side of the support frame 602 is fixedly connected with a heating rod 605, the interior of the support frame 602 is bolted with a guide plate 606, the guide plate 606 is located on the front side of the heating rod 605, the front side of the support frame 602 is connected with a guide tube 607, and the front side of the guide tube 607 is connected to the rear side of the test section 4.
[0030] Specifically, such as Figure 3 As shown, a guide plate 608 is bolted to the rear side of the support frame 602 , and a filter screen plate 609 is fixedly connected to the rear side of the interior of the guide plate 608 .
[0031] Specifically, such as Figure 3 、 Figure 5 As shown, a temperature detector 610 is provided on the top of the support frame 602 , and a detection end of the temperature detector 610 passes through the top of the support frame 602 and extends into the interior of the support frame 602 .
[0032] In this embodiment: when it is necessary to test the drag reduction capability of the drag reduction skirt at different temperatures, the heating rod 605 starts to generate heat. While generating heat, the fan body 604 is then started to generate airflow, so that the air enters the interior of the guide plate 608. The air is then filtered through the filter plate 609 on the rear side of the guide plate 608 and enters the interior of the support frame 602, so that it heats the interior of the test section 4 to simulate different temperature environments. The guide plate 606 and the guide tube 607 can then adjust the flow direction of heat to make the temperature distribution in the test section 4 more uniform. At the same time, the temperature detector 610 monitors the temperature inside the support frame 602 in real time to facilitate control and adjustment of the temperature in the test section 4. Compared with the existing high-speed train drag reduction skirt processing drag reduction capability experimental platform, it can simulate the resistance of different air flow velocities and different temperature environments during train operation, so as to accurately test the drag reduction capability of the drag reduction skirt.
[0033] Specifically, such as Figure 4 As shown, a positioning block 8 is fixedly connected to the bottom side of the test section 4, a positioning rod 9 is fixedly connected to the top of the positioning block 8, the top of the positioning rod 9 is rotatably connected to the bottom of the supporting circular plate 503, a limiting plate 10 is fixedly connected to the bottom side of the test section 4, the top of the limiting plate 10 is fixedly connected to the limiting block 11, a limiting groove 12 is provided at the bottom of the supporting circular plate 503, and the inner side of the limiting groove 12 is slidably connected to the outer side of the limiting block 11.
[0034] Specifically, such as Figure 5 As shown, a protective door 13 is rotatably connected to the front side of the test section 4 , a pull rod 14 is bolted to the front side of the protective door 13 , and an observation window 15 is provided on the front side of the protective door 13 .
[0035] In this embodiment: by setting the positioning block 8, positioning rod 9, limiting plate 10, limiting block 11 and limiting groove 12, when the clamping assembly 5 is installed, the positioning rod 9 and the positioning block 8 play a positioning and supporting role, ensuring that the supporting circular plate 503 can be accurately installed in the appropriate position and can rotate around the positioning rod 9, providing a basis for the subsequent skirt model angle adjustment. At the same time, during the rotation of the supporting circular plate 503, the limiting block 11 slides in the limiting groove 12, limiting the rotation range of the supporting circular plate 503, making the rotation of the supporting circular plate 503 more It is smooth and controllable to ensure that the skirt model will not have unexpected position displacement during the angle adjustment process, thereby improving the accuracy and reliability of the experiment. By setting the protective door 13, the pull rod 14 and the observation window 15, the experimenter can observe the skirt model and the airflow conditions inside the test section 4 at any time. At the same time, the presence of the pull rod 14 makes the opening and closing operations of the protective door 13 convenient and fast, which is convenient for various operations during the experiment. The protective door 13 can effectively block external airflow, dust, etc. from entering the test section 4, and maintain a stable airflow environment and cleanliness inside the test section 4.
[0036] Specifically, such as Figure 5 As shown, an auxiliary block 16 is fixedly connected to the right side of the top of the support frame 1 , the top of the auxiliary block 16 is bolted to the bottom of the stabilizing section 2 , and a filter plate 17 is bolted to the right side of the stabilizing section 2 .
[0037] Specifically, such as Figure 5 As shown, the bottom of the support frame 1 is fixedly connected to a mounting seat 18 , and the inner side of the mounting seat 18 is rotatably connected to a universal wheel 19 .
[0038] In this embodiment: by providing an auxiliary block 16 and a filter plate 17, the presence of the auxiliary block 16 enhances the connection strength between the stabilizing section 2 and the support frame 1, making the structure of the entire experimental platform more stable, reducing experimental errors caused by vibration and the like, and providing a stable structural foundation for the smooth progress of the experiment. By providing a mounting seat 18 and a universal wheel 19, the device can be moved within the laboratory or between different sites, thereby improving the flexibility of use of the experimental platform.
[0039] Working principle: In the process of using the high-speed train drag reduction skirt processing drag reduction capacity experimental platform, first, the drag reduction skirt to be tested is placed on the top of the placement block 504, then the motor body 507 is started, and then the output end of the motor body 507 rotates while driving the double-axis screw 508 to rotate, and then the outer side of the double-axis screw 508 rotates while driving the threaded splint 509 to move, as the motor body 507 rotates, the double-axis screw 508 drives the splint 509 to slide along the inside of the placement slot 506, and then the splint 509 moves toward the inside of the placement slot 506, thereby fixing and clamping the skirt model in the placement slot 506, and then starting the drive motor 501, and then through the drive motor 5 01 drives the tooth plate 502 to rotate, and then the tooth plate 502 drives the meshing support circular plate 503 to rotate, and then drives the placement block 504 and the drag reduction skirt to rotate, so as to adjust the angle of the drag reduction skirt. When it is necessary to test the drag reduction ability of the drag reduction skirt at different temperatures, the heating rod 605 starts to heat up. While generating heat, the fan body 604 is started to generate airflow, so that the air enters the interior of the guide plate 608. Then the air is filtered by the filter plate 609 on the rear side of the guide plate 608 and enters the interior of the support frame 602, so that it heats the interior of the test section 4 to simulate different temperature environments. Then the guide plate 606 and the guide tube 607 can adjust the flow direction of heat to make the test section 4 is more evenly distributed, and the temperature detector 610 monitors the temperature inside the support frame 602 in real time to control and adjust the temperature inside the test section 4. Then, under the set temperature, airflow velocity and skirt model angle, the pressure sensor and wind speed meter inside the test section 4 are used to collect data such as the airflow parameters around the skirt model and the aerodynamic force acting on the skirt. The collected data are transmitted to the computer through the data acquisition system and processed by the data analysis software to analyze the drag reduction capacity of the skirt model under different conditions. The high-speed train drag reduction skirt processing drag reduction capacity experimental platform usually focuses on simulating the airflow velocity and pressure environment when the train is running, but it is not convenient for The drag reduction ability of the drag reduction skirt is tested at the same temperature. In actual application, temperature changes will affect the physical properties of the air, and thus affect the drag reduction effect of the drag reduction skirt, resulting in complex and changeable airflow conditions around the skirt, making it impossible to accurately measure the drag reduction ability of the drag reduction skirt. Moreover, the installation device of the drag reduction skirt model is usually designed to ensure that the skirt is tested at a specific position and angle. Its mounting bracket may only have fixed slots in the horizontal and vertical directions, and cannot flexibly adjust the angle between the skirt and the airflow direction, making it difficult to simulate various tilting, twisting and other conditions that may occur in the skirt during actual train operation. As a result, it is difficult to obtain the complete airflow parameters of the skirt at different angles, which in turn affects the analysis of its drag reduction ability.
[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A high-speed train drag reduction skirt processing drag reduction capability test platform, comprising a support frame (1), characterized in that: A stabilizing section (2) is provided on the right side of the top of the support frame (1), a contraction section (3) is connected to the left side of the stabilizing section (2), a test section (4) is connected to the left side of the contraction section (3), a power section (7) is connected to the left side of the test section (4), an adjustment assembly (6) is provided on the rear side of the test section (4), the adjustment assembly (6) includes a mounting frame (601) bolted to the rear side of the test section (4), and a clamping assembly (5) is provided inside the test section (4); The clamping assembly (5) includes a driving motor (501) bolted to the inside of the test section (4), the output end of the driving motor (501) is fixedly connected to a tooth plate (502), the outer side of the tooth plate (502) is meshedly connected to a supporting circular plate (503), the top of the supporting circular plate (503) is bolted to a placement block (504), both sides of the placement block (504) are fixedly connected to fixed blocks (505), the bottom of the fixed block (505) is bolted to the supporting circular plate (503), and the top of the placement block (504) is opened. A placement groove (506) is provided, the front side of the placement block (504) is fixedly connected to a motor body (507), the output end of the motor body (507) passes through the front side of the placement block (504), the output end of the motor body (507) is fixedly connected to a biaxial screw (508), the rear side of the biaxial screw (508) is rotatably connected to the inner side of the placement groove (506), the outer side of the biaxial screw (508) is threadedly connected to a clamping plate (509), and the outer side of the clamping plate (509) is slidably connected to the inner side of the placement groove (506).
2. The high-speed train drag reduction skirt processing drag reduction capability test platform according to claim 1 is characterized by: The top of the mounting frame (601) is bolted to a support frame (602), the rear side of the support frame (602) is fixedly connected to a support rod (603), the front side of the support rod (603) is fixedly connected to a fan body (604), the front side of the support frame (602) is fixedly connected to a heating rod (605), the interior of the support frame (602) is bolted to a guide plate (606), the guide plate (606) is located on the front side of the heating rod (605), the front side of the support frame (602) is connected to a guide tube (607), and the front side of the guide tube (607) is connected to the rear side of the test section (4).
3. The high-speed train drag reduction skirt processing drag reduction capability test platform according to claim 2 is characterized by: A guide plate (608) is bolted to the rear side of the support frame (602), and a filter screen plate (609) is fixedly connected to the rear side of the guide plate (608).
4. The high-speed train drag reduction skirt processing drag reduction capability test platform according to claim 2 is characterized by: A temperature detector (610) is provided on the top of the support frame (602), and a detection end of the temperature detector (610) passes through the top of the support frame (602) and extends into the interior of the support frame (602).
5. The high-speed train drag reduction skirt processing drag reduction capability test platform according to claim 1 is characterized by: The bottom side of the test section (4) is fixedly connected to a positioning block (8), the top of the positioning block (8) is fixedly connected to a positioning rod (9), the top of the positioning rod (9) is rotatably connected to the bottom of the supporting circular plate (503), the bottom side of the test section (4) is fixedly connected to a limiting plate (10), the top of the limiting plate (10) is fixedly connected to the limiting block (11), the bottom of the supporting circular plate (503) is provided with a limiting groove (12), the inner side of the limiting groove (12) is slidably connected to the outer side of the limiting block (11).
6. The high-speed train drag reduction skirt processing drag reduction capability test platform according to claim 1 is characterized by: The front side of the test section (4) is rotatably connected to a protective door (13), the front side of the protective door (13) is bolted to a pull rod (14), and the front side of the protective door (13) is provided with an observation window (15).
7. The high-speed train drag reduction skirt processing drag reduction capability test platform according to claim 1 is characterized by: An auxiliary block (16) is fixedly connected to the right side of the top of the support frame (1), the top of the auxiliary block (16) is bolted to the bottom of the stabilizing section (2), and a filter plate (17) is bolted to the right side of the stabilizing section (2).
8. The high-speed train drag reduction skirt processing drag reduction capability test platform according to claim 1 is characterized by: The bottom of the support frame (1) is fixedly connected to a mounting seat (18), and the inner side of the mounting seat (18) is rotatably connected to a universal wheel (19).