A wind speed test device

Abstract

The present invention discloses a wind speed test device, comprising: a main frame, a first drive device, a second drive device, a transmission belt, a master-slave device and a small impeller assembly, wherein the number of the master-slave devices is multiple; the middle portion of the main frame is hollowed out and the edge of the main frame serves as a main support plate, the first drive device, the second drive device and the multiple master-slave devices are arranged on the main support plate; the transmission belt is annular, and the transmission belt is wound around the first drive device, the second drive device, the small impeller assembly and the multiple master-slave devices, so that the first drive device, the second drive device, the small impeller assembly and the multiple master-slave devices are all located inside the annular portion of the transmission belt, and when the first drive device and / or the second drive device are in a driving state, the transmission belt drives the small impeller assembly to move within the range of the hollow middle portion of the main frame. The present invention reduces the cost expenditure of the anemometer, can comprehensively obtain wind speed information of a radiator or condenser, and greatly improves the accuracy of the wind speed test results.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile wind speed testing, and in particular to a wind speed testing device. Background Art

[0002] During the development of a complete vehicle, it is necessary to calibrate some parameters of the vehicle. Usually, an environmental wind tunnel is used to accurately simulate climatic conditions such as high temperature, low temperature, humidity, and light. During dynamic testing, the entire vehicle body is within the flow field area, and it is usually necessary to pay attention to the information on the air intake from the front grille of the vehicle. In the actual test operation, the wind speed information is mainly measured by a wind speed sensor (also called a small impeller).

[0003] However, the unit price of the small impeller is relatively high. A set of anemometers includes more than ten small impellers. It can be seen that the price of the anemometer is relatively high, which in turn leads to a high cost for the wind speed calibration test. Summary of the Invention

[0004] The embodiment of the present application solves the technical problem in the prior art that the price of anemometers is high, which leads to high costs for wind speed calibration tests, by providing a wind speed test device. It achieves the technical effect of reducing the number of small impellers used, lowering the price of anemometers, and thus reducing the cost of wind speed calibration tests.

[0005] The present application provides a wind speed test device, which includes: a main frame, a first drive device, a second drive device, a transmission belt, a master-slave device and a small impeller assembly, wherein the number of the master-slave device is multiple;

[0006] The middle part of the main frame is hollowed out and the edge of the main frame serves as a main support plate, and the first driving device, the second driving device and a plurality of master and slave devices are arranged on the main support plate;

[0007] The transmission belt is annular and is wound around the first drive device, the second drive device, the impeller assembly, and the multiple master and slave devices, so that the first drive device, the second drive device, the impeller assembly, and the multiple master and slave devices are all located inside the annular shape of the transmission belt; wherein one end of the impeller assembly is fixedly connected to the transmission belt, and the other end of the impeller assembly, the first drive device, the second drive device, and the multiple master and slave devices are movably connected to the transmission belt;

[0008] When the first driving device and / or the second driving device is in a driving state, the transmission belt drives the small impeller assembly to move within the hollowed-out range in the middle of the main frame.

[0009] Further, the impeller assembly includes a sub-frame, a third driving device, a fourth driving device and an impeller;

[0010] The middle part of the sub-frame is hollowed out and the edge of the sub-frame is a sub-support plate, and the small impeller is arranged in the middle hollow area of ​​the sub-frame;

[0011] a third driving device connected to the sub-frame, for driving the sub-frame to rotate within the first target plane;

[0012] The fourth driving device is connected to the small impeller and is used to drive the small impeller to rotate in a second target plane, and the first target plane and the second target plane are perpendicular.

[0013] Furthermore, the device also includes a transverse guide rail and a longitudinal guide rail;

[0014] The transverse guide rail includes a first transverse rail and a second transverse rail, the first transverse rail and the second transverse rail are arranged on the main support plate, and the first transverse rail and the second transverse rail are located on opposite sides of the middle hollow of the main frame;

[0015] The longitudinal guide rail includes a first longitudinal rail and a second longitudinal rail, two ends of the first longitudinal rail are movably bridged to the first transverse rail and the second transverse rail, and two ends of the second longitudinal rail are movably bridged to the first transverse rail and the second transverse rail;

[0016] The small impeller assembly is hung on the first longitudinal rail and the second longitudinal rail.

[0017] Furthermore, the device also includes a transverse slider assembly, which includes a first transverse slider and a second transverse slider. The first transverse slider is movably arranged on the first transverse track, and the second transverse slider is movably arranged on the second transverse track.

[0018] Furthermore, the device also includes a secondary driven device, and a secondary driven device is provided at each end of the first longitudinal track and the second longitudinal track, and the multiple secondary driven devices are all located outside the ring of the transmission belt.

[0019] Furthermore, the impeller assembly includes a sub-frame and a longitudinal slider assembly, the longitudinal slider assembly includes a first longitudinal slider and a second longitudinal slider, the first longitudinal slider is movably set on the first longitudinal track, and the second longitudinal slider is movably set on the second longitudinal track.

[0020] Furthermore, the impeller assembly further includes a belt fixing block, which is used to fix one end of the impeller assembly to the transmission belt.

[0021] Furthermore, the first driving device and the second driving device are stepping motors.

[0022] Furthermore, the master and slave devices are stepper motors or driven wheels.

[0023] Furthermore, the size of the hollowed-out middle portion of the main frame matches the size of a radiator or a condenser of an automobile.

[0024] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0025] The wind speed test device provided by the present application can drive the small impeller assembly to move arbitrarily in the middle hollow area of ​​the main frame. After the wind speed test device is fixed to the front end of the radiator or condenser, the small impeller assembly can be controlled to measure the wind speed information at any position of the radiator or condenser. On the one hand, the wind speed test device provided by the present application can measure the wind speed information at any position of the radiator or condenser using only a small impeller, which greatly reduces the number of small impellers used and thus greatly reduces the cost expenditure of the anemometer; on the other hand, the wind speed test device provided by the present application can measure the wind speed information at any position of the radiator or condenser, that is, the wind speed information of the continuous position of the radiator or condenser can be collected, and of course the wind speed information of any discrete position of the radiator or condenser can also be collected, thereby obtaining the wind speed information of the radiator or condenser more comprehensively, greatly improving the accuracy of the wind speed test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of the structure of a wind speed test device provided in this application;

[0028] Figure 2 A schematic diagram of the structure of another wind speed test device provided in this application;

[0029] Figure 3 A schematic structural diagram of a small impeller assembly provided in this application;

[0030] Figure 4 A schematic diagram of the structure of the impeller assembly with an additional drive device provided for this application;

[0031] Figure 5 For this application Figure 1 A schematic diagram of the structure of a wind speed test device optimized based on the above;

[0032] Figure 6 For this application Figure 4 Schematic diagram of the structure of the optimized impeller assembly based on .

[0033] Reference numerals:

[0034] 1-main frame, 11-main support plate, 12-first transverse rail, 13-second transverse rail, 14-first transverse slider, 15-second transverse slider, 16-hollowed out middle portion of the main support plate;

[0035] 2- impeller assembly, 21- belt fixing block, 22- first longitudinal track, 23- second longitudinal track, 24- subframe, 25- impeller, 26- third drive device, 27- fourth drive device, 28- longitudinal rotating shaft, 29- first longitudinal slider, 30- second longitudinal slider;

[0036] 31-first drive device, 32-second drive device, 33-master-slave device, 34-master-slave device, 35-master-slave device, 36-master-slave device;

[0037] 4- transmission belt;

[0038] 51 - slave device, 52 - slave device, 53 - slave device, 54 - slave device. DETAILED DESCRIPTION

[0039] The embodiments of the present application provide a wind speed test device, thereby solving the technical problem in the prior art where anemometers are relatively expensive, which in turn leads to relatively high costs for wind speed calibration tests.

[0040] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0041] A wind speed test device, comprising: a main frame 1, a first drive device 31, a second drive device 32, a transmission belt 4, a master-slave device 33, 34 and a small impeller assembly 2, wherein the number of the master-slave device 33, 34 is multiple; the middle portion of the main frame 1 is hollowed out 16 and the edge of the main frame 1 is a main support plate 11, the first drive device 31, the second drive device 32 and the multiple master-slave devices 33, 34 are arranged on the main support plate 11; the transmission belt 4 is annular and is wound around the first drive device 31, the second drive device 32, the small impeller assembly 2 and the multiple master-slave devices 33, 34, so that the first drive device 31, the second drive device 32, the impeller assembly 2 and multiple master and slave devices 33, 34 are all on the inner side of the ring of the transmission belt 4; wherein, one end of the impeller assembly 2 is fixedly connected to the transmission belt 4, and the other end of the impeller assembly 2, the first drive device 31, the second drive device 32 and multiple master and slave devices 33, 34 are movably connected to the transmission belt 4; when the first drive device 31 and / or the second drive device 32 are in the driving state, the transmission belt 4 drives the impeller assembly 2 to move within the range of the middle hollow 16 of the main frame 1.

[0042] The wind speed test device provided in this embodiment can drive the small impeller assembly 2 to move arbitrarily within the central hollow area 16 of the main frame 1. After the wind speed test device is fixed to the front end of the radiator or condenser, the small impeller assembly 2 can be controlled to measure the wind speed information at any position of the radiator or condenser. On the one hand, the wind speed test device provided in this embodiment can measure the wind speed information at any position of the radiator or condenser using only one small impeller 25, which greatly reduces the number of small impellers 25 used and thus greatly reduces the cost of the anemometer. On the other hand, the wind speed test device provided in this embodiment can measure the wind speed information at any position of the radiator or condenser, that is, it can collect wind speed information at continuous positions of the radiator or condenser, and of course it can also collect wind speed information at any discrete position of the radiator or condenser, thereby obtaining more comprehensive wind speed information of the radiator or condenser, greatly improving the accuracy of the wind speed test results.

[0043] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0044] First, the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0045] Affected by seasonal and environmental factors, the calibration time in winter and summer is difficult to coincide with the vehicle development cycle. On the other hand, some calibration tests, such as automatic air conditioning calibration tests, usually require repeated adjustment of system parameters at a specific temperature to meet vehicle comfort requirements. However, in a natural environment, it is impossible to guarantee that suitable test conditions are always available. In addition, the natural environment is changeable, and it is often impossible to accurately determine the parameters. Repeated adjustments are required, resulting in a too long calibration cycle.

[0046] To address this issue, environmental wind tunnel testing equipment was developed. This equipment can accurately simulate climatic conditions such as high and low temperatures, humidity, and light, resolving issues like inaccurate airflow simulation and poor temperature control within the environmental chamber. It can also simulate special operating conditions such as rain and snow, and temperature and humidity changes with slope, bringing wind tunnel testing conditions closer to natural environments and effectively shortening the development cycle for new vehicle models.

[0047] The air outlet area of ​​an environmental wind tunnel is designed to fully cover the test vehicle body. During dynamic testing, the entire vehicle body is within the flow field, and information on the air intake through the vehicle's front grille is typically of interest. The front-end module is located at the front grille of the vehicle. This module typically includes the condenser, radiator, cooling fan, and other equipment. Using wind speed and temperature sensors, the environmental wind tunnel can accurately measure the air intake speed and temperature of the radiator or condenser under specific operating conditions.

[0048] In actual experimental operations, wind speed sensors are typically small impellers 25 arranged in multiple rows and columns on a radiator or condenser to measure wind speed at each discrete point and infer the surface wind speed of the entire radiator or condenser. The more small impellers 25 are arranged, the more evenly distributed they are, and the more accurate the estimated surface wind speed.

[0049] However, the price of a small impeller 25 exceeds 20,000 yuan per unit. A set of anemometers contains more than a dozen small impellers 25, bringing the total price to 400,000 yuan, making wind speed testing expensive. Furthermore, a typical lab only has one or two sets of anemometers, and the small impellers 25 are often arranged in a 3x3 or 4x4 array. These small impellers 25 are fixed in position and orientation, resulting in limited wind speed information and inaccurate wind speed test results.

[0050] In order to solve the above problems, this embodiment provides Figure 1 A wind speed test device is shown, comprising: a main frame 1, a first drive device 31, a second drive device 32, a transmission belt 4, master and slave devices 33, 34 and a small impeller assembly 2, wherein the number of the master and slave devices 33, 34 is multiple.

[0051] The middle of the main frame 1 is hollowed out 16 and the edge of the main frame 1 is a main support plate 11 , on which a first driving device 31 , a second driving device 32 and a plurality of master and slave devices 33 , 34 are arranged.

[0052] The shape of the main support plate 11 can be set according to actual conditions, and can be set to a rectangle under normal circumstances. The size of the middle hollow 16 of the main frame 1 matches the size of the radiator or condenser of the car.

[0053] The positions of the first drive device 31, the second drive device 32 and the master-slave devices 33, 34 can be set at any position on the main support plate 11. It should be noted that the enclosed area of ​​the first drive device 31, the second drive device 32 and the master-slave devices 33, 34 needs to cover the central hollow area 16 of the main frame 1.

[0054] like Figure 1As shown, the first driving device 31 is set at the upper left corner of the central hollow 16 area of ​​the main frame 1, the second driving device 32 is set at the lower left corner of the central hollow 16 area of ​​the main frame 1, and the master and slave devices 33 and 34 include two, which are respectively set at the upper right corner and the lower right corner of the central hollow 16 area of ​​the main frame 1. It can be seen that the enclosed area of ​​the first driving device 31, the second driving device 32 and the master and slave devices 33 and 34 covers the central hollow 16 area of ​​the main frame 1. Among them, the first driving device 31, the second driving device 32 and the master and slave devices 33 and 34 are in Figure 1 The positions in can be interchanged.

[0055] like Figure 2 As shown, it is Figure 1 Another distribution relationship of the first drive device 31, the second drive device 32 and the master and slave devices 33, 34, 35, 36 is distinguished. The first drive device 31 and the second drive device 32 are arranged in the middle position of the upper and lower sides of the main support plate 11, and a master and slave device 33, 34, 35, 36 is arranged at each of the four corners of the main support plate 11. Among them, the first drive device 31, the second drive device 32 and the master and slave devices 33, 34, 35, 36 are arranged in the middle position of the upper and lower sides of the main support plate 11. Figure 2 The positions in can be interchanged.

[0056] In the specific implementation of this embodiment, the locations of the first driving device 31, the second driving device 32 and the master and slave devices 33, 34, 35, 36 and the number of the master and slave devices 33, 34, 35, 36 can be determined according to actual conditions. Figure 1 and Figure 2 In terms of location distribution, Figure 1 Only two master and slave devices 33, 34 are used, which reduces the number of devices used and the cost of the devices. The positions of the first drive device 31, the second drive device 32 and the master and slave devices 33, 34 are simple and clear. Therefore, in the specific implementation, the positions can be set according to Figure 1 The master and slave devices 33 and 34 can be stepper motors or driven wheels. Figure 1 The layout positions shown are for exemplary description.

[0057] Among them, the impeller assembly 2 can be a small impeller 25 and a sub-frame 24, such as Figure 3 As shown, the impeller 25 is fixed inside the sub-frame 24, and the transmission belt 4 contacts both sides of the sub-frame 24, one side is fixedly connected and the other side is movable (the connection between the transmission belt 4 and the sub-frame 24 is not shown in FIG. Figure 3 The impeller assembly 2 may further include other structures, which will be described later and will not be repeated here.

[0058] When using the wind speed test device, the radiator (or condenser) needs to be placed in the area corresponding to the central hollow 16 of the main frame 1. Therefore, the transmission belt 4 is set in an annular shape and is wound around the first drive device 31, the second drive device 32, the impeller assembly 2, and the multiple master and slave devices 33, 34, so that the first drive device 31, the second drive device 32, the impeller assembly 2, and the multiple master and slave devices 33, 34 are all located inside the annular shape of the transmission belt 4; wherein one end of the impeller assembly 2 is fixedly connected to the transmission belt 4, and the other end of the impeller assembly 2, the first drive device 31, the second drive device 32, and the multiple master and slave devices 33, 34 are movably connected to the transmission belt 4.

[0059] The transmission belt 4 can be an elastic belt such as a belt, and the transmission belt 4 is an endless belt. Figure 1 As shown, a certain position of the transmission belt 4 is fixed at one end of the impeller assembly 2 ( Figure 1 The left end of the impeller assembly 2 is shown in FIG), and then respectively surrounds the first drive device 31, the second drive device 32, and multiple master and slave devices 33, 34, and then returns to the other end of the impeller assembly 2 ( Figure 1 ), the first driving device 31 , the second driving device 32 , the impeller assembly 2 and a plurality of master and slave devices 33 , 34 are enclosed in a ring of the driving belt 4 using a driving belt 4 .

[0060] The first drive device 31 and the second drive device 32 can be stepper motors. When the first drive device 31 and / or the second drive device 32 are in the driving state, the transmission belt 4 drives the impeller assembly 2 to move within the central hollow area 16 of the main frame 1. Specifically, the first drive device 31 and the second drive device 32 can generate a driving force. The friction between the first drive device 31 and the second drive device 32 and the transmission belt 4 drives the transmission belt 4 to rotate. During the rotation of the transmission belt 4, the movement of the impeller assembly 2 within the central hollow area 16 of the main frame 1 is changed.

[0061] Specifically, the impeller assembly 2 can be moved arbitrarily in the central hollow area of ​​the main support plate 11 by controlling the direction and rotation speed of the first driving device 31 and the second driving device 32 .

[0062] For example, when the first drive device 31 and the second drive device 32 rotate in the same direction and at the same speed, the impeller assembly 2 will move upward or downward under the drive belt 4. When the first drive device 31 and the second drive device 32 rotate clockwise at the same speed, the impeller assembly 2 will move upward under the drive belt 4. When the first drive device 31 and the second drive device 32 rotate counterclockwise at the same speed, the impeller assembly 2 will move downward under the drive belt 4.

[0063] When the first drive device 31 and the second drive device 32 rotate at the same speed in opposite directions, the impeller assembly 2 moves left or right driven by the transmission belt 4. When the first drive device 31 rotates clockwise and the second drive device 32 rotates counterclockwise at the same speed, the impeller assembly 2 moves left driven by the transmission belt 4. When the first drive device 31 rotates counterclockwise and the second drive device 32 rotates clockwise at the same speed, the impeller assembly 2 moves right driven by the transmission belt 4.

[0064] When the rotational speeds of the first driving device 31 and the second driving device 32 are different, the transmission belt 4 will drive the impeller assembly 2 to move in the upper left, lower left, upper right, lower right and other directions.

[0065] In summary, the wind speed test device provided in this embodiment can drive the small impeller assembly 2 to move arbitrarily within the central hollow area 16 of the main frame 1. After the wind speed test device is fixed to the front end of the radiator or condenser, the small impeller assembly 2 can be controlled to measure the wind speed information at any position of the radiator or condenser. On the one hand, the wind speed test device provided in this embodiment can measure the wind speed information at any position of the radiator or condenser using only one small impeller 25, which greatly reduces the number of small impellers 25 used, thereby greatly reducing the cost of the anemometer; on the other hand, the wind speed test device provided in this embodiment can measure the wind speed information at any position of the radiator or condenser, that is, it can collect wind speed information at continuous positions of the radiator or condenser, and of course it can also collect wind speed information at any discrete position of the radiator or condenser, thereby obtaining more comprehensive wind speed information of the radiator or condenser, greatly improving the accuracy of the wind speed test results.

[0066] On the basis of the above scheme, this embodiment also provides Figure 4 The optimization scheme of the impeller assembly 2 shown is as follows:

[0067] The impeller assembly 2 includes a sub-frame 24 , a third driving device 26 , a fourth driving device 27 and an impeller 25 .

[0068] The central portion of the subframe 24 is hollowed out, and the edges of the subframe 24 serve as auxiliary support plates. The impeller 25 is positioned within the central hollowed-out area of ​​the subframe 24, bridged between the auxiliary support plates on either side of the subframe 24 via a longitudinal shaft 28. The shape of the auxiliary support plate can be customized based on practical needs, typically being rectangular. The dimensions of the central hollowed-out portion of the subframe 24 can match those of the impeller 25. To minimize the impact of the subframe 24 on the wind flow of the radiator or condenser during wind speed testing, the subframe 24 should be minimized in size and weight while meeting strength requirements.

[0069] The third driving device 26 is driven by a transverse shaft (not in Figure 4 The sub-frame 24 is connected to the sub-frame 24 and is configured to drive the sub-frame 24 to rotate within a first target plane. The extension of the transverse rotation axis intersects and is perpendicular to the longitudinal rotation axis 28. The plane formed by the transverse rotation axis and the longitudinal rotation axis 28 is parallel to the plane of the sub-support plate. The first target plane is a plane perpendicular to the transverse rotation axis.

[0070] The fourth driving device 27 is connected to the impeller 25 and is used to drive the impeller 25 to rotate in a second target plane. The first target plane and the second target plane are perpendicular. Figure 4 In the embodiment, the fourth driving device 27 drives the impeller 25 to rotate in the second target plane via the longitudinal rotation axis 28. The second target plane is a plane perpendicular to the longitudinal rotation axis 28.

[0071] The impeller assembly 2 provided in this embodiment can support the impeller 25 to rotate around the longitudinal rotation axis 28, so that the wind speed information perpendicular to the radiator or condenser can be measured, and the wind speed information parallel to the radiator or condenser can also be measured, so that the wind speed test can be carried out more comprehensively, making the results of the wind speed test more accurate.

[0072] Based on the above solution, this embodiment is further optimized by adding mutually matching transverse guide rails and longitudinal guide rails to the wind speed test device. Figure 5 As shown, the transverse guide rail includes a first transverse rail 12 and a second transverse rail 13 , which are arranged on the main support plate 11 , and are located on opposite sides of the central hollow 16 of the main frame 1 .

[0073] The longitudinal guide rail includes a first longitudinal rail 22 and a second longitudinal rail 23 . Both ends of the first longitudinal rail 22 are movably bridged to the first transverse rail 12 and the second transverse rail 13 . Both ends of the second longitudinal rail 23 are movably bridged to the first transverse rail 12 and the second transverse rail 13 .

[0074] The impeller assembly 2 is mounted on the first longitudinal rail 22 and the second longitudinal rail 23. The first longitudinal rail 22 and the second longitudinal rail 23 can slide left and right within the first transverse rail 12 and the second transverse rail 13. To ensure a more stable and smooth left and right sliding of the first longitudinal rail 22 and the second longitudinal rail 23 within the first transverse rail 12 and the second transverse rail 13, a transverse slider assembly is further provided on the first transverse rail 12 and the second transverse rail 13. The transverse slider assembly includes a first transverse slider 14 and a second transverse slider 15. The first transverse slider 14 is movably disposed on the first transverse rail 12, and the second transverse slider 15 is movably disposed on the second transverse rail 13.

[0075] When the two ends of the first longitudinal rail 22 are movably bridged onto the first transverse rail 12 and the second transverse rail 13, they are actually bridged onto the first transverse slider 14 and the second transverse slider 15, and the first transverse slider 14 and the second transverse slider 15 can move on the first transverse rail 12 and the second transverse rail 13. Similarly, when the two ends of the second longitudinal rail 23 are movably bridged onto the first transverse rail 12 and the second transverse rail 13, they are actually bridged onto the first transverse slider 14 and the second transverse slider 15, and the first transverse slider 14 and the second transverse slider 15 can move on the first transverse rail 12 and the second transverse rail 13.

[0076] In addition, a secondary driven device 51, 52, 53, 54 is provided at each end of the first longitudinal track 22 and the second longitudinal track 23, and the plurality of secondary driven devices 51, 52, 53, 54 are all located outside the ring of the transmission belt 4. Figure 5 As shown, the transmission belt 4 sequentially passes through the first driving device 31, multiple master and slave devices 33, 34, multiple slave devices 51, 52, 53, 54 and the second driving device 32 to form an I-shape. Figure 5 As shown, the position of the transmission belt 4 can be constrained by the auxiliary driven devices 51, 52, 53, and 54, so that the portion of the transmission belt 4 in the middle hollow area 16 of the main frame 1 coincides with the longitudinal track, thereby preventing the transmission belt 4 from interfering with the wind on the surface of the radiator or condenser, and improving the accuracy of the impeller 25 in monitoring the wind speed information.

[0077] In addition, the impeller assembly 2 also includes a longitudinal slider assembly and a belt fixing block 21, which can match the above-mentioned longitudinal guide rail to improve the smoothness of the movement of the impeller assembly 2 on the longitudinal guide rail. Figure 6 As shown, the longitudinal slider assembly includes a first longitudinal slider 29 and a second longitudinal slider 30. The first longitudinal slider 29 is movably arranged on the first longitudinal track 22, and the second longitudinal slider 30 is movably arranged on the second longitudinal track 23. The belt fixing block 21 is used to fix one end of the impeller assembly 2 to the transmission belt 4.

[0078] It should be noted that at least one impeller 25 can be provided in the impeller assembly 2 provided in this embodiment. When actually implementing this embodiment, in order to reduce costs, usually only one impeller 25 is used, but the solution provided in this embodiment is also applicable to the case where multiple impellers 25 are provided at the same time.

[0079] In summary, this embodiment constructs a wind speed test device including a main frame 1, a first drive device 31, a second drive device 32, a transmission belt 4, master and slave devices 33, 34 and a small impeller assembly 2. On the basis of using a small impeller 25, the wind speed information of each continuous or discontinuous measuring point in the vertical direction or parallel direction of the radiator or condenser can be monitored, which greatly reduces the equipment cost of the wind speed test. At the same time, it can also monitor the wind speed information of the radiator or condenser more comprehensively, thereby improving the accuracy, comprehensiveness and flexibility of the wind speed test results.

[0080] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0081] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A wind speed test device, characterized in that: The device comprises: a main frame, a first driving device, a second driving device, a transmission belt, a master-slave device and a small impeller assembly, wherein the master-slave device is in multiple numbers; the transmission belt is an elastic belt; The middle portion of the main frame is hollowed out and the edge of the main frame is a main support plate, and the first driving device, the second driving device and the plurality of master and slave devices are arranged on the main support plate; The transmission belt is annular and is wound around the first driving device, the second driving device, the impeller assembly, and the plurality of master and slave devices, so that the first driving device, the second driving device, the impeller assembly, and the plurality of master and slave devices are all located inside the annular shape of the transmission belt; wherein one end of the impeller assembly is fixedly connected to the transmission belt, and the other end of the impeller assembly, the first driving device, the second driving device, and the plurality of master and slave devices are movably connected to the transmission belt; When the first driving device and / or the second driving device is in a driving state, the transmission belt drives the impeller assembly to move within the hollowed-out middle portion of the main frame; The device further includes a transverse guide rail and a longitudinal guide rail; the transverse guide rail includes a first transverse rail and a second transverse rail, the first transverse rail and the second transverse rail are arranged on the main support plate, and the first transverse rail and the second transverse rail are located on opposite sides of the hollow middle portion of the main frame; the longitudinal guide rail includes a first longitudinal rail and a second longitudinal rail, the two ends of the first longitudinal rail are respectively movably bridged to the first transverse rail and the second transverse rail, and the two ends of the second longitudinal rail are respectively movably bridged to the first transverse rail and the second transverse rail; the impeller assembly is hung on the first longitudinal rail and the second longitudinal rail; The device further comprises a secondary driven device, wherein one secondary driven device is provided at each end of the first longitudinal track and the second longitudinal track, and the plurality of secondary driven devices are all located outside the ring of the transmission belt; The number of the impeller assembly is 1, and the impeller assembly includes 1 impeller; the number of the transmission belt is 1; the number of the first driving device and the second driving device are both 1, the number of the master-slave devices is 2, and the number of the slave-slave devices is 4.

2. The device according to claim 1, wherein The impeller assembly includes a sub-frame, a third driving device, a fourth driving device and an impeller; The middle portion of the sub-frame is hollowed out and the edge of the sub-frame is a sub-support plate, and the impeller is arranged in the middle hollowed-out area of ​​the sub-frame; The third driving device is connected to the sub-frame and is used to drive the sub-frame to rotate in the first target plane; The fourth driving device is connected to the impeller and is used to drive the impeller to rotate in a second target plane, and the first target plane is perpendicular to the second target plane.

3. The device according to claim 1, wherein The device further includes a transverse slider assembly, which includes a first transverse slider and a second transverse slider. The first transverse slider is movably arranged on the first transverse track, and the second transverse slider is movably arranged on the second transverse track.

4. The device according to claim 1, wherein The impeller assembly includes a longitudinal slider assembly, and the longitudinal slider assembly includes a first longitudinal slider and a second longitudinal slider. The first longitudinal slider is movably set on the first longitudinal track, and the second longitudinal slider is movably set on the second longitudinal track.

5. The device according to claim 1, wherein The impeller assembly further comprises a belt fixing block, which is used for fixing one end of the impeller assembly to the transmission belt.

6. The device according to claim 1, wherein The first driving device and the second driving device are stepping motors.

7. The device according to claim 1, wherein The master and slave devices are stepping motors or driven wheels.

8. The device according to claim 1, wherein The size of the hollowed-out middle portion of the main frame matches the size of a radiator or a condenser of an automobile.

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