Positioning device for testing high-speed train anti-drag fairing

Abstract

The utility model discloses a positioning device for testing a resistance-reducing fairing of a high-speed train, which belongs to the technical field of fairing processing, and is characterized by comprising a fixing plate, the top of the fixing plate is fixedly connected with a flow guide block, the bottom of the fixing plate is fixedly connected with a buffer assembly, and the buffer assembly comprises a base. The positioning device solves the problems that an existing positioning device for testing the high-speed train anti-drag fairing is inconvenient to buffer external pressure, the high-speed train is affected by various external force such as airflow impact and vibration during operation, and the positioning device is not convenient to use when the high-speed train anti-drag fairing is detected. The problems that due to the fact that the fixing device lacks an effective buffering function, when external force is transmitted to the flow guide cover, the flow guide cover is deviated or damaged, the device is damaged, the detection accuracy and the performance evaluation of the flow guide cover are affected, and the practicability of the device is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air deflector processing, in particular to a positioning device for testing a drag reduction air deflector of a high-speed train. Background Art

[0002] The high-speed train drag reduction fairing is an aerodynamic device applied to the body of a high-speed train. It is mainly installed at the front and rear of the train or at the connection between the train body and its shape is usually streamlined. Its purpose is to reduce the air resistance encountered by the train when it is traveling at high speed by optimizing the airflow distribution around the train.

[0003] The existing deflector fixing device is fixed in position and cannot be adjusted according to the deflector of different types and sizes, and its use is limited to certain areas;

[0004] The existing patent (publication number: CN216185558U) discloses a vehicle air deflector fixing device. By pulling the pull rod on one side of the connecting block, the pull rod can squeeze the spring on one side through the movable block, and the movable block can drive the insertion rod on one side to be pulled out from the slot on the connecting rod, and by inserting the insertion rod into the slots on connecting rods of different heights, the height of the connecting rod and the connecting block can be adjusted.

[0005] In response to the above problems, existing patents have provided solutions, but they are not convenient for buffering external pressure. High-speed trains are subject to various external forces such as air flow impact and vibration during operation. When testing the high-speed train drag reduction deflector, the fixing device lacks an effective buffering function. When these external forces are transmitted to the deflector, it will not only cause the position of the deflector to shift or be damaged, but also damage the device, thereby affecting the accuracy of the detection and the performance evaluation of the deflector, reducing the practicality of the device.

[0006] Therefore, a positioning device for testing the drag reduction fairing of a high-speed train is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a positioning device for testing the drag reduction air deflector of a high-speed train, which can solve the problem that the existing positioning device for testing the drag reduction air deflector of a high-speed train is not convenient for buffering external pressure. When the high-speed train is running, it is affected by various external forces such as air flow impact and vibration. When the high-speed train drag reduction air deflector is tested, since the fixing device lacks an effective buffering function, when these external forces are transmitted to the air deflector, not only will the position of the air deflector be offset or damaged, but the device will also be damaged, thereby affecting the accuracy of the test and the performance evaluation of the air deflector, reducing the practicality of the device.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for testing a drag reduction deflector cover of a high-speed train, comprising a fixed plate, a deflector block fixedly connected to the top of the fixed plate, and a buffer assembly fixedly connected to the bottom of the fixed plate, the buffer assembly comprising a base, a support plate movably connected to the top of the base, and the top of the support plate is fixedly connected to the bottom of the fixed plate, an electric trolley movably connected to the surface of the deflector block, and the top of the electric trolley is fixedly connected to the fixed block, a threaded rod is rotatably connected to the inside of the fixed block, a slider is threadedly connected to the surface of the threaded rod, and the front side of the slider extends to the front side of the fixed block and is fixedly connected to the fixed assembly, a lifting motor is fixedly connected to the top of the fixed block, and the output end of the lifting motor is fixedly connected to the threaded rod;

[0009] The fixing assembly includes a fixing cylinder, the interior of the fixing cylinder is rotatably connected to a bidirectional screw, and the rear side of the fixing cylinder is fixedly connected to the front side of the slider, the rear side of the inner wall of the fixing cylinder is fixedly connected to a rotating motor, and the output end of the rotating motor is fixedly connected to the bidirectional screw, the front and rear sides of the surface of the bidirectional screw are fixedly connected to threaded sleeves, and the surfaces of the two threaded sleeves are fixedly connected to rotating blocks, the surfaces of the two rotating blocks are movably connected to fixed blocks, and the four corners of the two fixed blocks are rotatably connected to connecting plates, the front and rear connecting plates are rotatably connected to support blocks on the side away from the fixed blocks, and the four support blocks are respectively located at the four corners of the surface of the fixed cylinder.

[0010] Preferably, a plurality of buffers are fixedly connected to both sides of the bottom of the support plate, and a vibration sensor is fixedly connected to the bottom of the support plate, and a spring is sleeved on the surface of the buffer.

[0011] Preferably, a fixing groove for use with the support plate is provided on the top of the base, and a side of the buffer away from the support plate is fixedly connected to the bottom of the inner wall of the fixing groove.

[0012] Preferably, a console is fixedly connected to the right side of the base, and the console is electrically connected to the vibration sensor and the fixing component.

[0013] Preferably, a rotating hole for cooperating with a threaded sleeve is opened on the front side of the fixed block, and the surface of the threaded sleeve contacts the inner wall of the rotating hole. A rotating groove for cooperating with a rotating block is opened on the inner wall of the rotating hole, and the surface of the rotating block contacts the inner wall of the rotating groove.

[0014] Preferably, movable holes for cooperating with the support blocks are provided at the four corners of the surface of the fixed cylinder, and the surface of the support blocks contacts the inner wall of the movable holes.

[0015] Preferably, a sliding groove for cooperating with the sliding block is provided on the front side of the fixing block, and the threaded rod is located inside the sliding groove.

[0016] Preferably, the bottom of the base is fixedly connected with adjustment feet, and the number of the adjustment feet is four, and the four adjustment feet are distributed at the four corners of the bottom of the base.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The present application provides a buffer component, which not only can buffer the vibration generated during the detection process, so that the device can maintain balance during the detection process, but also can promptly feedback the vibration data to the operator so that corresponding measures can be taken in time, thereby improving the convenience of using the buffer component;

[0019] 2. By setting up a fixing component, the present application can flexibly adjust its own expansion according to the actual size of the air deflector, and can fix the air deflector of a certain size, so that there is no need to equip air deflectors of different sizes with special fixing devices, which reduces the cost of use and improves the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the positioning device for testing the drag reduction deflector cover of a high-speed train according to the present utility model;

[0021] Figure 2 This is a side view of the positioning device for testing the drag reduction deflector cover of a high-speed train according to the utility model;

[0022] Figure 3 This is a schematic diagram of the connection between the guide block and the slider of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0024] Figure 5 This is a structural diagram of the buffer component of the utility model.

[0025] In the figure, 1. fixed plate; 2. guide block; 3. buffer assembly; 301. base; 302. support plate; 303. buffer; 304. vibration sensor; 305. spring; 4. electric trolley; 5. fixed block; 6. threaded rod; 7. slider; 8. fixed assembly; 801. fixed cylinder; 802. bidirectional screw; 803. rotating motor; 804. threaded sleeve; 805. rotating block; 806. fixed block; 807. connecting plate; 808. support block; 9. lifting motor; 10. fixed slot; 11. control console; 12. rotating hole; 13. rotating slot; 14. moving hole; 15. slide slot; 16. adjusting foot. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-5 , this utility model provides a technical solution:

[0028] A positioning device for testing a high-speed train drag reduction deflector cover comprises a fixed plate 1, a deflector block 2 being fixedly connected to the top of the fixed plate 1, and a buffer assembly 3 being fixedly connected to the bottom of the fixed plate 1, the buffer assembly 3 comprising a base 301, a support plate 302 being movably connected to the top of the base 301, and the top of the support plate 302 being fixedly connected to the bottom of the fixed plate 1, an electric trolley 4 being movably connected to the surface of the deflector block 2, and a fixed block 5 being fixedly connected to the top of the electric trolley 4, a threaded rod 6 being rotatably connected to the interior of the fixed block 5, a slider 7 being threadedly connected to the surface of the threaded rod 6, and the front side of the slider 7 extending to the front side of the fixed block 5 and fixedly connected to a fixing assembly 8, a lifting motor 9 being fixedly connected to the top of the fixed block 5, and the output end of the lifting motor 9 being fixedly connected to the threaded rod 6;

[0029] The fixing assembly 8 includes a fixed cylinder 801, the interior of the fixed cylinder 801 is rotatably connected to a bidirectional screw 802, and the rear side of the fixed cylinder 801 is fixedly connected to the front side of the slider 7, the rear side of the inner wall of the fixed cylinder 801 is fixedly connected to a rotating motor 803, and the output end of the rotating motor 803 is fixedly connected to the bidirectional screw 802, the front and rear sides of the surface of the bidirectional screw 802 are fixedly connected to threaded sleeves 804, and the surfaces of the two threaded sleeves 804 are fixedly connected to rotating blocks 805, the surfaces of the two rotating blocks 805 are movably connected to fixed blocks 806, and the four corners of the two fixed blocks 806 are rotatably connected to connecting plates 807, the front and rear connecting plates 807 are rotatably connected to support blocks 808 on the side away from the fixed blocks 806, and the four support blocks 808 are respectively located at the four corners of the surface of the fixed cylinder 801.

[0030] In this embodiment: by rotating the motor 803, the bidirectional screw 802 is driven to rotate, which drives the threaded sleeve 804 to rotate smoothly, and synchronously drives the rotating block 805 to rotate smoothly under the restriction of the rotating groove 13, so that the fixed block 806 moves smoothly to the opposite side, and the connecting plate 807 can drive the support block 808 to move smoothly, thereby driving the support block 808 to move and adjust its own expansion degree, thereby improving the convenience of using the device, and by using the support block 808 in conjunction with the moving hole 14, the support block 808 can move smoothly under the restriction of the moving hole 14, and its own expansion degree can be adjusted according to different specifications of the deflector. , so that a certain size of air deflector can be fixed, which improves the flexibility of the use of the fixing component 8, and then the buffer 303 and the spring 305 are used in conjunction to generate a reaction force, which drives the support plate 302 to return to its original position smoothly, and can buffer the vibration generated during the detection process, so that the device can maintain balance during the detection process, which improves the convenience of using the buffer component 3. Under the action of the vibration sensor 304, the vibration frequency generated during the detection process can be observed in real time through the console 11, and the vibration data can be fed back to the operator in time, so that corresponding measures can be taken in time, thereby improving the practicality of the device.

[0031] Specifically, such as Figure 5 As shown, a plurality of buffers 303 are fixedly connected to both sides of the bottom of the support plate 302 , and a vibration sensor 304 is fixedly connected to the bottom of the support plate 302 , and a spring 305 is sleeved on the surface of the buffer 303 .

[0032] Specifically, such as Figure 5 As shown, a fixing groove 10 is provided on the top of the base 301 for use with the support plate 302 , and a side of the buffer 303 away from the support plate 302 is fixedly connected to the bottom of the inner wall of the fixing groove 10 .

[0033] Specifically, such as Figure 1 、 Figure 2 、 Figure 5 As shown, a console 11 is fixedly connected to the right side of the base 301 , and the console 11 is electrically connected to the vibration sensor 304 and the fixing component 8 .

[0034] In this embodiment: by cooperating with the support plate 302 and the fixing groove 10, the support plate 302 can move smoothly under the restriction of the fixing groove 10, and under the action of the buffer 303 and the spring 305, a reaction force is generated, driving the support plate 302 to return to its original position smoothly, which can buffer the vibration generated during the detection process, so that the device can maintain balance during the detection process, and the convenience of using the buffer component 3 is improved. Then, by cooperating with the console 11 and the vibration sensor 304, the console 11 can observe the vibration frequency generated during the detection process in real time, and can promptly feed back the vibration data to the operator, so that corresponding measures can be taken in time, thereby improving the practicality of the device.

[0035] Specifically, such as Figure 4 As shown, a rotating hole 12 is provided on the front side of the fixed block 806 for use with the threaded sleeve 804, and the surface of the threaded sleeve 804 contacts the inner wall of the rotating hole 12. A rotating groove 13 is provided on the inner wall of the rotating hole 12 for use with the rotating block 805, and the surface of the rotating block 805 contacts the inner wall of the rotating groove 13.

[0036] Specifically, such as Figure 4 As shown, movable holes 14 for cooperating with the support blocks 808 are provided at the four corners of the surface of the fixed cylinder 801 , and the surface of the support blocks 808 contacts the inner wall of the movable holes 14 .

[0037] In this embodiment: by cooperating with the threaded sleeve 804 and the rotating hole 12, the threaded sleeve 804 moves smoothly under the restriction of the rotating hole 12, and is connected with the rotating groove 13 through the rotating hole 12, so that the threaded sleeve 804 can drive the rotating block 805 to move smoothly under the restriction of the rotating groove 13, thereby being able to smoothly drive the fixed block 806 to move, thereby improving the convenience of using the fixing component 8, and then by cooperating with the support block 808 and the moving hole 14, the support block 808 moves smoothly under the restriction of the moving hole 14, which not only can fix the air deflector, but also can accommodate the support block 808 inside the moving hole 14, reducing the occupied space of the device, improving space utilization, and improving the convenience of using the device.

[0038] Specifically, such as Figure 2 、 Figure 3 As shown, a sliding groove 15 for cooperating with the sliding block 7 is provided on the front side of the fixing block 5 , and the threaded rod 6 is located inside the sliding groove 15 .

[0039] Specifically, such as Figure 1 、 Figure 2 As shown, the bottom of the base 301 is fixedly connected with an adjustment foot 16 . There are four adjustment feet 16 , and the four adjustment feet 16 are distributed at the four corners of the bottom of the base 301 .

[0040] In this embodiment: by cooperating with the slider 7 and the slide groove 15, the slider 7 can move smoothly under the restriction of the slide groove 15, which can drive the fixed component 8 to move smoothly, so that the position of the air deflector can be adjusted according to actual conditions, thereby improving the convenience of using the device. Then, by cooperating with the four adjustment legs 16, the adjustment legs 16 can adjust their own height according to actual conditions, so that the base 301 can maintain balance on any ground, avoiding shaking or tilting of the device due to uneven ground, and improving the stability of the device.

[0041] Working principle: When testing the high-speed train drag reduction deflector, the bidirectional screw 802 is driven to rotate by the rotating motor 803, driving the threaded sleeve 804 to rotate smoothly, and synchronously driving the rotating block 805 to rotate smoothly under the restriction of the rotating groove 13, so that the fixed block 806 moves smoothly to the opposite side, and the connecting plate 807 can drive the support block 808 to move smoothly, thereby driving the support block 808 to move and adjust its own expansion degree, and through the cooperation of the support block 808 and the moving hole 14, the support block 808 can move smoothly under the restriction of the moving hole 14, and its own expansion degree can be adjusted according to different specifications of deflectors, so that a certain size of deflector can be fixed, and then the lifting motor 9 drives the threaded rod 6 to rotate, driving the slider 7 to move smoothly under the restriction of the slide groove 15. The electric trolley 4 can move smoothly under the restriction of the guide block 2, and can drive the guide cover to move smoothly, so as to simulate the movement of the guide cover under high-speed wind pressure, and provide a more realistic simulation environment for detection. The buffer 303 and the spring 305 are used together to generate a reaction force, which drives the support plate 302 to return to its original position smoothly, and can buffer the vibration generated during the detection process, so that the device can maintain balance during the detection process. Under the action of the vibration sensor 304, the vibration frequency generated during the detection process can be observed in real time through the console 11, and the vibration data can be fed back to the operator in time, so that corresponding measures can be taken in time.

[0042] 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 positioning device for testing a high-speed train drag reduction deflector, comprising a fixing plate (1), characterized in that: The top of the fixed plate (1) is fixedly connected to a guide block (2), and the bottom of the fixed plate (1) is fixedly connected to a buffer assembly (3), the buffer assembly (3) includes a base (301), the top of the base (301) is movably connected to a support plate (302), and the top of the support plate (302) is fixedly connected to the bottom of the fixed plate (1), the surface of the guide block (2) is movably connected to an electric trolley (4), and the top of the electric trolley (4) is fixedly connected to a fixed block (5), the inside of the fixed block (5) is rotatably connected to a threaded rod (6), the surface of the threaded rod (6) is threadedly connected to a slider (7), and the front side of the slider (7) extends to the front side of the fixed block (5) and is fixedly connected to a fixed assembly (8), the top of the fixed block (5) is fixedly connected to a lifting motor (9), and the output end of the lifting motor (9) is fixedly connected to the threaded rod (6); The fixing assembly (8) comprises a fixing cylinder (801), the interior of the fixing cylinder (801) is rotatably connected to a bidirectional screw (802), and the rear side of the fixing cylinder (801) is fixedly connected to the front side of the slider (7), the rear side of the inner wall of the fixing cylinder (801) is fixedly connected to a rotating motor (803), and the output end of the rotating motor (803) is fixedly connected to the bidirectional screw (802), and the front and rear sides of the surface of the bidirectional screw (802) are fixedly connected to threaded sleeves (803). 04), and the surfaces of the two threaded sleeves (804) are fixedly connected to rotating blocks (805), the surfaces of the two rotating blocks (805) are movably connected to fixed blocks (806), and the four corners of the two fixed blocks (806) are rotatably connected to connecting plates (807), and the sides of the two front and rear connecting plates (807) away from the fixed blocks (806) are rotatably connected to supporting blocks (808), and the four supporting blocks (808) are respectively located at the four corners of the surface of the fixed cylinder (801).

2. The positioning device for testing a high-speed train drag reduction deflector according to claim 1, characterized in that: A plurality of buffers (303) are fixedly connected to both sides of the bottom of the support plate (302), and a vibration sensor (304) is fixedly connected to the bottom of the support plate (302), and a spring (305) is sleeved on the surface of the buffer (303).

3. The positioning device for testing a high-speed train drag reduction deflector according to claim 1, characterized in that: A fixing groove (10) for use with the support plate (302) is provided on the top of the base (301), and a side of the buffer (303) away from the support plate (302) is fixedly connected to the bottom of the inner wall of the fixing groove (10).

4. The positioning device for testing a high-speed train drag reduction deflector according to claim 1, characterized in that: The right side of the base (301) is fixedly connected to a console (11), and the console (11) is electrically connected to the vibration sensor (304) and the fixing component (8).

5. The positioning device for testing a high-speed train drag reduction deflector according to claim 1, characterized in that: The front side of the fixed block (806) is provided with a rotating hole (12) for use with the threaded sleeve (804), and the surface of the threaded sleeve (804) contacts the inner wall of the rotating hole (12). The inner wall of the rotating hole (12) is provided with a rotating groove (13) for use with the rotating block (805), and the surface of the rotating block (805) contacts the inner wall of the rotating groove (13).

6. The positioning device for testing a high-speed train drag reduction deflector according to claim 1, characterized in that: The four corners of the surface of the fixed cylinder (801) are each provided with a movable hole (14) for use with the support block (808), and the surface of the support block (808) is in contact with the inner wall of the movable hole (14).

7. The positioning device for testing a high-speed train drag reduction deflector according to claim 1, characterized in that: A sliding groove (15) for cooperating with the sliding block (7) is provided on the front side of the fixed block (5), and the threaded rod (6) is located inside the sliding groove (15).

8. The positioning device for testing a high-speed train drag reduction deflector according to claim 1, characterized in that: The bottom of the base (301) is fixedly connected with an adjustment foot (16), and the number of the adjustment foot (16) is four, and the four adjustment feet (16) are distributed at the four corners of the bottom of the base (301).

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