Smoke flow generating device and smoke flow generating system

Abstract

The application relates to the technical field of smoke flow test, and provides a smoke flow generating device and a smoke flow generating system. The smoke flow generating device comprises a mounting seat, a smoke generating mechanism and a position adjusting mechanism. The smoke generating mechanism comprises a rotating driving part, a mounting rod in transmission connection with a power output end of the rotating driving part, and a plurality of smoke generating rods mounted on the mounting rod and arranged at intervals along the length direction of the mounting rod. The position adjusting mechanism can adjust the position of the smoke generating mechanism on the mounting seat in a first direction and adjust the position of the smoke generating mechanism on the mounting seat in a second direction. The first direction and the second direction are arranged in intersecting directions. The smoke flow generating device can realize simultaneous overturning and moving of the plurality of smoke generating rods, so as to adapt to the requirements of smoke flow test on the height and arrangement direction of the smoke generating position. When used, the smoke generating rods do not need to be repeatedly disassembled, the time for disassembling the smoke generating rods can be saved, and the working efficiency of the smoke flow test can be improved.

Description

Technical Field

[0001] This application relates to the field of smoke flow testing technology, and in particular to a smoke flow generating device and a smoke flow generating system. Background Technology

[0002] Smoke flow testing is the most common test method in flow field visualization testing. It is usually carried out in wind tunnel testing, where a smoke meter is used to generate smoke flow in front of the test vehicle. After the smoke flow passes over the vehicle surface, it forms a visible airflow path, which is crucial for evaluating the airflow distribution characteristics and aerodynamic performance around the vehicle. It plays an important role in optimizing vehicle design, reducing drag coefficient, and improving fuel efficiency.

[0003] Currently, only single handheld smoke meters are available on the market. When the airflow distribution around the test vehicle is horizontal or vertical, a support needs to be set up and multiple smoke meters need to be arranged and installed on the support before the test can be carried out. The installation and operation of the smoke meters is relatively cumbersome and not conducive to improving the test efficiency. Utility Model Content

[0004] In view of this, this application aims to provide a smoke generation device to improve experimental efficiency.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: A smoke generator includes a mounting base, a smoke generating mechanism, and a position adjusting mechanism connected between the mounting base and the smoke generating mechanism; The smoke-generating mechanism includes a rotation drive unit, a mounting rod that is connected to the power output end of the rotation drive unit, and a plurality of smoke-generating rods mounted on the mounting rod, wherein the plurality of smoke-generating rods are arranged at intervals along the length direction of the mounting rod. The position adjustment mechanism is capable of adjusting the position of the smoke-generating mechanism on the mounting base along a first direction and along a second direction; wherein the first direction and the second direction are arranged to intersect.

[0006] Furthermore, the position adjustment mechanism includes a first linear slide mounted on the mounting base, and a second linear slide mounted on the slide rail of the first linear slide. The rotation drive unit includes a third motor mounted on the slide rail of the second linear slide, and the mounting rod is mounted on the output shaft of the third motor.

[0007] Furthermore, the drive unit of the first linear slide includes a first motor mounted on the mounting base, and the output shaft of the first motor and the sliding rail of the first linear slide are connected by a lead screw pair.

[0008] Furthermore, the drive unit of the second linear slide includes a second motor mounted on the slide rail of the first linear slide, and the output shaft of the second motor and the slide rail of the second linear slide are connected by a rack and pinion transmission.

[0009] Furthermore, the mounting base includes a mounting base body, a first walking portion disposed at the bottom of the mounting base body, and a grip portion mounted on one side of the mounting base body; The first linear slide is mounted on the mounting base body.

[0010] Furthermore, a control cabinet is mounted on the mounting base body, and the control cabinet is electrically connected to the drive unit of the first linear slide, the drive unit of the second linear slide, and the third motor, respectively.

[0011] Furthermore, the length direction of the mounting rod, the length direction of the smoke generator rod, and the axial direction of the output shaft of the third motor are arranged to intersect each other in pairs.

[0012] Compared with related technologies, the smoke generation device of this application has the following advantages: (1) The smoke generator described in this application has multiple smoke generators mounted on the power output end of the rotating drive unit via mounting rods. The rotating drive unit can cause multiple smoke generators to flip simultaneously. Combined with the adjustment function of the position adjustment mechanism in the first and second directions, multiple smoke generators can be flipped and moved simultaneously to flexibly adapt to the requirements of the smoke generation position height and arrangement direction of the smoke test. There is no need to repeatedly disassemble and assemble the smoke generators during use, saving the time of adjusting the position of the smoke generators and improving the working efficiency of the smoke test.

[0013] (2) Setting the position mechanism to include a first linear slide and a second linear slide, and driving the mounting rod to rotate by a third motor, can make the height and position adjustment of the mounting rod more precise and easier to control.

[0014] (3) The first slide is set as a combination of the first motor, the slide rail and the lead screw pair. Driven by the first motor, the lead screw pair drives the slide rail to move with high precision and strong load capacity, which is conducive to improving the stability of the slide rail movement. The second linear slide is set as a combination of the second motor, the slide rail and the gear pair. The rack pair can still maintain good stability and precision in long-distance transmission, which is conducive to improving the convenience of adjustment.

[0015] (4) The walking part can facilitate the user to move the mounting base, so as to move the smoke generator to different locations on the site. The grip part can provide the user with a point of leverage, making it easy for the user to push and pull the mounting base.

[0016] (5) By arranging the control cabinet, the control cabinet can control the first linear slide, the second linear slide and the third motor to work, reducing manual operation, reducing the workload of operators, and reducing the possible operational errors caused by the decentralized control of multiple components.

[0017] (6) The length direction of the mounting rod, the length direction of the smoke generator rod, and the axial direction of the output shaft of the third motor intersect each other, which allows the smoke generated by the smoke generator rod to form a multi-angle and multi-directional spray effect in space. This is beneficial to enrich the smoke arrangement position during smoke flow testing and enable the smoke flow to cover the vehicle more comprehensively.

[0018] Another object of this application is to provide a smoke generation system, which includes the above-mentioned smoke generation device and an oil supply system respectively connected to each of the smoke generating rods of the smoke generation device.

[0019] Furthermore, the oil supply system includes a base, an oil supply unit, an oil control unit, and a plurality of first connectors disposed on the base, wherein the oil control unit is respectively connected to the oil supply unit and the plurality of first connectors; The first connector and the smoke generator are connected in a one-to-one correspondence, and the oil control unit can drive the e-liquid in the oil supply unit to flow into each of the smoke generators.

[0020] Furthermore, there are multiple oil control units, each of which includes an oil pump. The oil inlet of the oil pump is connected to the oil supply unit through a first pipeline, and the oil outlet of the oil pump is connected to a second connector through a second pipeline. The second connector and multiple first connectors are respectively connected through a third pipeline. The second pipeline is equipped with a pressure regulating section, which can regulate the pressure of the e-liquid flowing through the second pipeline.

[0021] Furthermore, the second pipeline is provided with a flow rate regulating unit, which can regulate the flow rate of the e-liquid flowing through the second pipeline.

[0022] Furthermore, each of the smoke generator rods is detachably connected to the corresponding first connector.

[0023] Furthermore, a second traveling section is provided at the bottom of the base.

[0024] The smoke generation system described in this application, by setting the aforementioned smoke generation device, allows multiple smoke generators to rotate and move simultaneously, flexibly adapting to the height and arrangement requirements of the smoke generation position in smoke generation tests. During use, there is no need to repeatedly disassemble and reassemble the smoke generators, saving time in adjusting them and improving work efficiency. Simultaneously, the smoke generation system is equipped with an oil supply system, ensuring a continuous supply of smoke oil to the smoke generation device, which helps the smoke generators continuously generate smoke, improving the uniformity and stability of the smoke flow, and providing a continuous and reliable smoke environment for the test.

[0025] Secondly, the base provides a stable installation platform for the oil supply unit, the oil control unit, and multiple first connectors. The oil supply unit and the oil control unit work together to achieve relatively accurate oil supply, and each first connector corresponds to a smoke generator, which allows each smoke generator to work independently without affecting each other.

[0026] In addition, multiple oil control units are set up, with an oil pump connected to the second connector and the first connector via a pipeline. A pressure regulating unit is set between the oil pump and the second connector, which can adjust the e-liquid pressure to supply to the first connector as needed. Multiple oil control units are set up, with an oil pump connected to the second connector and the first connector via a pipeline. A flow rate regulating unit is set between the oil pump and the second connector, which can adjust the e-liquid flow rate to supply to the first connector as needed.

[0027] Furthermore, the detachable connection between the smoke generator and the first connector allows the same oil supply system to be used with different smoke generation devices, which helps to improve the versatility of the oil supply system. The second traveling part is set at the bottom of the base, which allows the oil supply system to be moved as needed, making it easy to adapt and connect with the smoke generation device. At the same time, it can also be moved in conjunction with the movement of the smoke generation device to realize the movable arrangement of the entire smoke generation system. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the smoke generator described in the embodiments of this application; Figure 2 This is a schematic diagram of the smoke generator described in an embodiment of this application from another perspective; Figure 3 for Figure 2 Enlarged view of part A in the middle; Figure 4 This is a schematic diagram showing the connection between the smoke generator and the mounting rod as described in an embodiment of this application; Figure 5 This is a schematic diagram showing the connection between the rotation drive unit and the mounting rod as described in an embodiment of this application; Figure 6 This is an overall schematic diagram of the smoke generation system described in the embodiments of this application; Figure 7 This is a schematic diagram of the oil supply system described in the embodiments of this application; Figure 8 This is a schematic diagram of the oil circuit of the oil supply system described in the embodiments of this application; Explanation of reference numerals in the attached figures: 1. Mounting bracket; 101. Mounting base body; 102. First traveling part; 103. Grip part; 104. Column; 2. Smoke-generating facilities; 201. Rotary drive unit; 202. Mounting rod; 203. Smoke generator; 2031. Smoke outlet; 3. Position adjustment mechanism; 301. First linear slide; 3011. First motor; 3012. Lead screw; 3013. Rotating support; 3014. First sliding rail; 3015. First fixed rail; 302. Second linear slide; 3021. Second motor; 3022. Second sliding rail; 3023. Second fixed rail; 3024. First gear; 3025. First rack; 4. Control cabinet; 5. Oil supply system; 501. Base; 502. Oil supply unit; 503. Oil control unit; 5031. Oil pump; 5032. First pipeline; 5033. Second pipeline; 5034. Second connector; 5035. Third pipeline; 5036. Pressure regulating unit; 5037. Flow rate regulating unit; 5038. Filter; 504. First connector; 505. Second travel unit; 6. Cable chain; 7. Heavy-duty connectors; 8. Clamping device. Detailed Implementation

[0029] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0031] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0033] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0035] An embodiment of the first aspect of this application provides a smoke generation device to improve experimental efficiency.

[0036] In related technologies, vehicle aerodynamics is closely related to the overall performance of vehicles, including energy conservation, emission reduction, and driving stability, and has now become one of the important performance indicators that automakers focus on when developing new models. Flow field visualization testing is an essential test method for developing automotive aerodynamic performance, and smoke flow testing is the most common test method in flow field visualization testing.

[0037] Smoke flow testing typically involves placing a smoke meter at a localized location on the vehicle's surface or in front of the vehicle during wind tunnel testing. The wind from the wind tunnel blows the smoke emitted by the smoke meter, forming a smoke flow. The flow pattern of the airflow as it passes over the vehicle's surface is observed, including phenomena such as airflow separation and reattachment. This allows for an understanding of the aerodynamic characteristics of key locations on the vehicle body. It is crucial for evaluating the airflow distribution characteristics and aerodynamic performance around the vehicle and plays an important role in optimizing vehicle design, reducing drag coefficient, and improving fuel efficiency.

[0038] Currently, only single-unit handheld smoke meters are available on the market. When testing the airflow distribution across the horizontal or vertical plane around a vehicle, a support frame is required, and multiple smoke meters must be arranged and mounted on the frame at equal intervals along the horizontal or vertical plane to conduct the test. Here, "horizontal plane" refers to the horizontal plane. When testing the airflow across the horizontal plane around a vehicle, multiple smoke meters are arranged and mounted on the support frame at intervals along the horizontal direction, with the smoke outlets of all smoke meters at the same height.

[0039] In this context, the longitudinal plane refers to the vertical plane parallel to the vehicle's direction of travel. When testing the longitudinal airflow around the vehicle, multiple smoke meters are arranged vertically at intervals on a bracket, with the smoke outlets of all smoke meters located within the same vertical plane. The transverse plane refers to the horizontal plane. When testing the transverse airflow around the vehicle, multiple smoke meters are arranged horizontally at intervals on a bracket, perpendicular to the vehicle's direction of travel. Typically, smoke flow tests on vehicles require measuring the airflow distribution in both the horizontal and vertical directions around the vehicle. This necessitates repeated disassembly and adjustment of the smoke flow meter to adapt to the test, which is cumbersome and hinders work efficiency.

[0040] In view of this, in order to overcome the shortcomings of the related technology, the smoke generator in this embodiment combines... Figures 1 to 3 In terms of overall design, it includes a mounting base 1, a smoke generating mechanism 2, and a position adjustment mechanism 3 connecting the mounting base 1 and the smoke generating mechanism 2.

[0041] The smoke-generating mechanism 2 includes a rotation drive unit 201, a mounting rod 202 that is driveably connected to the power output end of the rotation drive unit 201, and a plurality of smoke-generating rods 203 mounted on the mounting rod 202. The plurality of smoke-generating rods 203 are arranged at intervals along the length direction of the mounting rod 202. The position adjustment mechanism 3 can adjust the position of the smoke-generating mechanism 2 on the mounting base 1 along a first direction and along a second direction. The first direction and the second direction are arranged intersecting.

[0042] Therefore, by mounting multiple smoke generators 203 on the power output end of the rotation drive unit 201 using the mounting rod 202, the rotation drive unit 201 can be used to rotate the multiple smoke generators 203 simultaneously. Combined with the adjustment function of the position adjustment mechanism 3 in the first and second directions, the multiple smoke generators 203 can be rotated and moved simultaneously. This allows the smoke generators 203 to be arranged horizontally at any height or sequentially along the height direction on any vertical plane parallel to the wind tunnel direction. This flexibly adapts to the different heights and arrangement directions of the smoke generation position required by the smoke flow test. During use, there is no need to repeatedly disassemble and assemble the smoke generators 203, which saves time and helps improve the working efficiency of the smoke flow test.

[0043] Based on the above overview, specifically, the plane jointly determined by the first and second directions is perpendicular to the wind direction of the wind tunnel. This ensures that when the rotation drive unit 201 rotates the mounting rod 202, it remains within a plane perpendicular to the wind direction of the wind tunnel, thus guaranteeing the reliability of the smoke flow test. Preferably, the first direction can be set to a vertical direction, and the second direction can be set to a direction perpendicular to both the first direction and the wind direction of the wind tunnel. In this way, the position adjustment mechanism 3 can move the smoke generating mechanism 2 along the shortest path, improving movement efficiency.

[0044] Among them, see Figure 1 and Figure 4 For the connection of the smoke generator 203 to the mounting rod 202, a clamping device 8 can be installed on the mounting rod 202 to detachably connect the smoke generator 203 to the mounting rod 202. The principle of the smoke generator 203 is to heat the e-liquid, causing the e-liquid to generate fine smoke that is discharged from the exhaust port 2031 of the smoke generator 203. The discharged smoke diffuses with the external airflow. The exhaust port 2031 of the smoke generator 203 is curved and oriented in the same direction as the wind tunnel, which makes the generated smoke stream clear and distinct.

[0045] Recombination Figures 1 to 4 As shown, in some exemplary embodiments, the position adjustment mechanism 3 includes a first linear slide 301 mounted on the mounting base 1 and a second linear slide 302 mounted on a slide rail of the first linear slide 301. The rotation drive unit 201 includes a third motor mounted on the slide rail of the second linear slide 302, and a mounting rod 202 is mounted on the output shaft of the third motor. The slide rail of the first linear slide 301 is the first slide rail 3014 shown in the figure.

[0046] Thus, the position adjustment mechanism 3, constructed by combining the first linear slide 301 and the second linear slide 302, provides stable guidance, minimizes wobbling and errors during adjustment, and enables more precise position adjustment of the smoke generating mechanism 2 in both the first and second directions. Simultaneously, the rotation drive unit 201 includes a third motor, which can rotate the mounting rod 202 to the desired angle and is easily controlled by a program, thereby improving the automation level of the smoke flow test. Preferably, the third motor can be a servo motor, with its output shaft intersecting both the first and second directions.

[0047] Of course, the rotation drive unit 201 can also take other forms, such as a rotary slide table or a rotary cylinder. When using a rotary slide table, its base can be mounted on the first sliding rail 3014 of the first linear slide table 301. The platform of the rotary slide table is connected to the mounting rod 202, and the platform of the rotary slide table is driven to rotate by a third motor to achieve the rotation of the mounting rod 202. When using a rotary cylinder, the cylinder body of the rotary cylinder can be mounted on the first sliding rail 3014 of the first linear slide table 301. The rotating end of the rotary cylinder is connected to the mounting rod 202 to achieve the rotation of the mounting rod 202.

[0048] Based on the position adjustment mechanism 3 including the first linear slide 301 and the second linear slide 302, in some exemplary embodiments, the drive unit of the first linear slide 301 includes a first motor 3011 mounted on the mounting base 1, and the output shaft of the first motor 3011 and the first sliding rail 3014 of the first linear slide 301 are connected by a lead screw pair.

[0049] In this arrangement, the first linear slide 301 is driven by the first motor 3011 in conjunction with a lead screw pair. The lead screw pair has high-precision transmission characteristics, which can accurately convert the rotational motion of the first motor 3011 into the linear motion of the first sliding rail 3014, thus greatly improving the position adjustment accuracy of the smoke generating mechanism 2 in the first direction. At the same time, the structure of the lead screw pair can withstand a large load, so even if the overall weight of the smoke generating mechanism 2 is large, the adjustment process can still have good stability and is not prone to jamming or a decrease in adjustment accuracy due to excessive load.

[0050] Specifically, a column 104 can be set on the mounting base 1 along the first direction, and the first motor 3011 is mounted on the column 104. The lead screw 3012 of the lead screw pair is arranged along the extension direction of the column 104, and the column 104 is provided with a rotating support 3013 for the lead screw 3012 to be rotatably connected. The output shaft of the first motor 3011 is connected to the lead screw 3012 through a coupling. The first fixed rail 3015 of the first linear slide 301 is mounted on the column 104 along the first direction, and the first sliding rail 3014 of the first linear slide 301 is screwed to the lead screw 3012. In this way, the lead screw 3012 can drive the first sliding rail 3014 of the first linear slide 301 to move under the drive of the first motor 3011.

[0051] It is understandable that the first linear slide 301 can also adopt other transmission forms, such as the form of a rack and pinion pair. The first motor 3011 can be set on the first sliding rail 3014 of the first linear slide 301, and a gear can be installed on the output shaft of the first motor 3011. At the same time, a rack is arranged on the column 104 along the first direction. The gear meshes with the rack, and the first motor 3011 drives the gear to rotate, so that the first sliding rail 3014 of the first linear slide 301 can move on the first fixed rail 3015.

[0052] Continuing with the position adjustment mechanism 3, which includes a first linear slide 301 and a second linear slide 302, in some exemplary embodiments, the drive unit of the second linear slide 302 includes a second motor 3021 mounted on a first slide rail 3014 of the first linear slide 301. The output shaft of the second motor 3021 and the slide rail of the second linear slide 302 are connected by a rack and pinion transmission.

[0053] With this configuration, the second linear slide 302 uses a second motor 3021 in conjunction with a rack and pinion drive. The rack and pinion drive features high transmission efficiency and fast transmission speed, enabling faster position adjustment of the smoke-generating mechanism 2 in the second direction. This is particularly suitable for situations requiring switching between multiple positions in the second direction for testing. Furthermore, the rack and pinion structure maintains good stability and accuracy over long distances. If the smoke-generating mechanism 2 requires a large range of position adjustments in the second direction during testing, the rack and pinion drive is well-suited and maintains high accuracy even over long transmission distances.

[0054] Specifically, the sliding rail of the second linear slide 302 is... Figure 1 The second sliding rail 3022 allows the first gear 3024 of the rack and pinion pair to be mounted on the output shaft of the second motor 3021. The second fixed rail 3023 of the second linear slide 302 is mounted on the first sliding rail 3014. The second fixed rail 3023 is arranged along the second direction. Correspondingly, the second sliding rail 3022 is cantilevered and slidably connected to the second fixed rail 3023. The first rack 3025 of the rack and pinion pair is fixedly connected to the second sliding rail 3022 along the second direction and meshes with the first gear 3024. The second motor 3021 drives the first gear 3024 to rotate, which in turn drives the first rack 3025 to move, causing the second sliding rail 3022 to move along the second direction.

[0055] Reference Figure 1 and Figure 2 Based on the position adjustment mechanism 3 including a first linear slide 301 and a second linear slide 302, in some exemplary embodiments, the mounting base 1 includes a mounting base body 101, a first traveling part 102 disposed at the bottom of the mounting base body 101, and a gripping part 103 mounted on one side of the mounting base body 101. The first linear slide 301 is mounted on the mounting base body 101.

[0056] With this configuration, the mounting body 101 provides a stable connection base for the first linear slide 301, and the first traveling part 102 at the bottom of the mounting body 101 enables the entire smoke generator to move flexibly. The grip part 103 on one side of the mounting body 101 provides a convenient point of force for the operator to move the device. In conjunction with the first traveling part 102, the operator can easily push or pull the device through the grip part 103, improving ease of use.

[0057] Specifically, the first traveling part 102 can take the form of, for example, rollers, casters, or a combination of guide rails and sliders, as long as it allows the mounting body 101 to move relatively easily. The gripping part 103 can take the form of, for example, an armrest or handle; preferably, an armrest is used, and a reinforcing rod is welded between the column 104 and the armrest to enhance each other's bending resistance.

[0058] Based on the mounting base 1 including the mounting base body 101, in some exemplary embodiments, a control cabinet 4 is mounted on the mounting base body 101, and the control cabinet 4 is electrically connected to the drive unit of the first linear slide 301, the drive unit of the second linear slide 302 and the third motor respectively.

[0059] In this way, the operating parameters of each component can be set and controlled through the control cabinet 4, such as the moving speed and displacement of the first linear slide 301 and the second linear slide 302, and the rotation speed of the third motor. This helps to improve the accuracy of the test, reduce manual operation, reduce the workload of operators, and reduce operational errors that may be caused by the decentralized control of multiple components.

[0060] It should also be noted that the control cabinet 4 needs to be connected to the third motor, the first motor 3011, and the second motor 3021. Since the first linear slide 301 and the second linear slide 302 need to move, a cable chain 6 can be installed on the column 104. One end of the cable chain 6 is connected to the first sliding rail 3014 of the first linear slide 301. The wiring for the second motor 3021 is led out from the control cabinet 4 and passes through the cable chain 6 on the column 104 to electrically connect to the second motor 3021. Alternatively, a cable chain 6 can be installed on the second sliding rail 3022 of the second linear slide 302. One end of the cable chain 6 is connected to the first sliding rail 3014. The wiring for the third motor is led out from the control cabinet 4 and passes sequentially through the cable chain 6 on the column 104 and the cable chain 6 on the second sliding rail 3022 to electrically connect to the third motor. As for the first motor 3011, it is fixedly installed on the column 104, so wiring can be directly led out from the control cabinet 4 to electrically connect to the first motor 3011.

[0061] Additionally, refer to Figures 1 to 4In order to give the smoke generator a greater coverage capacity, in some exemplary embodiments, the length of the mounting rod 202, the length of the smoke generator 203, and the axial direction of the output shaft of the third motor are arranged to intersect each other.

[0062] In this way, the length directions of the mounting rod 202, the smoke generator 203, and the output shaft of the third motor intersect each other, allowing the smoke jet direction of the smoke generator 203 to form a three-dimensional staggered distribution with the rotation direction of the mounting rod 202 and the position adjustment direction of the smoke generator 2. This structure allows the smoke generated by the smoke generator 203 to form a multi-angle, multi-directional jet effect in space, which can more comprehensively cover the airflow field around the vehicle.

[0063] It is worth noting that, regarding the smoke generator of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it still consists of 1 to... Figure 4 As shown, it may include, for example, a mounting base 1, a smoke generating mechanism 2, and a position adjusting mechanism 3.

[0064] The smoke-generating mechanism 2 includes a third motor, a mounting rod 202 connected to the output shaft of the third motor, and eight smoke-generating rods 203 mounted on the mounting rod 202.

[0065] The position adjustment mechanism 3 includes a first linear slide 301 driven by a lead screw pair, and a second linear slide 302 mounted on the slide rail of the first linear slide 301. The second linear slide 302 is driven by a rack and pinion pair, and a third motor is mounted on the slide rail of the second linear slide 302.

[0066] Among them, the mounting base 1 is equipped with a control cabinet 4, which is electrically connected to the third motor, the first motor 3011 and the second motor 3021.

[0067] The mounting base 1 has four casters at the bottom and a handrail at the top.

[0068] In the preferred embodiment of the smoke generating device described above, the specific configuration and arrangement of the mounting base 1, the smoke generating mechanism 2, and the position adjusting mechanism 3 can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the mounting base 1, the smoke generating mechanism 2, and the position adjusting mechanism 3 can also be referred to the descriptions in the above exemplary embodiments.

[0069] The smoke generator of this embodiment adopts the above design, in which multiple smoke generator rods 203 are mounted on the power output end of the rotation drive unit 201 via the mounting rod 202. The rotation drive unit 201 can make multiple smoke generator rods 203 rotate simultaneously. With the adjustment function of the position adjustment mechanism 3 in the first and second directions, multiple smoke generator rods 203 can be rotated and moved simultaneously to flexibly adapt to the requirements of smoke generation position height and arrangement direction in smoke flow test. During use, there is no need to repeatedly disassemble and assemble the smoke generator rods 203, which can save the time of disassembling and assembling the smoke generator rods 203 and improve the working efficiency of smoke flow test.

[0070] An embodiment of the second aspect of this application provides a smoke generation system, which includes a smoke generation device according to the embodiment of the second aspect of this application, and an oil supply system 5 respectively connected to each of the smoke generating rods 203 of the smoke generation device.

[0071] In this way, by setting up the above-mentioned smoke generation device, multiple smoke generators 203 can be flipped and moved simultaneously, which can adapt to the requirements of smoke generation position height and arrangement direction in smoke flow test. During use, there is no need to repeatedly disassemble and assemble the smoke generators 203, which can save time and improve work efficiency.

[0072] Meanwhile, the smoke generation system is equipped with an oil supply system 5, which enables the smoke generation device to obtain a continuous supply of smoke oil, which helps the smoke generator 203 to continuously generate smoke, improves the uniformity and stability of the smoke flow, and provides a continuous and reliable smoke flow environment for the experiment.

[0073] The oil supply system 5 includes a base 501, an oil supply section 502, an oil control section 503, and multiple first connectors 504 mounted on the base 501. The oil control section 503 is connected to the oil supply section 502 and the multiple first connectors 504 respectively. The first connectors 504 are connected to the smoke generators 203 in a one-to-one correspondence. The oil control section 503 can drive the e-liquid in the oil supply section 502 to flow into each smoke generator 203.

[0074] In this way, the base 501 provides a unified installation platform for the oil supply unit 502, the oil control unit 503, and multiple first connectors 504, making the layout of each component neat and the connection tight, which can enhance the stability of the entire oil supply system 5 and provide a stable supply of e-liquid for the smoke generator. At the same time, the first connectors 504 are connected one-to-one with the smoke generator 203, so that the oil supply path of each smoke generator 203 is independent and avoids the mutual influence of e-liquid pressure fluctuations caused by sharing the oil supply path.

[0075] The base 501 can be configured as an openable and closable cabinet. The first connector 504 is a self-locking connector and extends through the side wall of the cabinet, serving as the path for the e-liquid to leave the cabinet.

[0076] Regarding the specific form of the oil control unit 503, in this embodiment, there are multiple oil control units 503, each including an oil pump 5031. The oil inlet of the oil pump 5031 is connected to the oil supply unit 502 through a first pipeline 5032, and the oil outlet of the oil pump 5031 is connected to the second connector 5034 through a second pipeline 5033. The second connector 5034 and multiple first connectors 504 are connected through a third pipeline 5035. A pressure regulating unit 5036 is provided on the second pipeline 5033, which can regulate the pressure of the e-liquid flowing through the second pipeline 5033.

[0077] With this configuration, multiple oil control units 503 are each equipped with an oil pump 5031, and each oil pump 5031 corresponds to an independent oil supply path, namely, oil supply unit 502 - first pipeline 5032 - oil pump 5031 - second pipeline 5033 - second connector 5034 - third pipeline 5035 - first connector 504, which enables independent oil supply control for different smoke generators 203. Simultaneously, a pressure regulating unit 5036 is provided on the second pipeline 5033 between the oil pump 5031 and the second connector 5034, which can adjust the e-liquid pressure to supply to the first connector 504 as needed.

[0078] Preferably, there can be two oil control units 503, that is, one oil supply unit 502 corresponds to one oil pump 5031. The second connector 5034 adopts the form of a five-way connector, expanding one second pipeline 5033 into three third pipelines 5035, and connecting each third pipeline 5035 to a first connector 504. A right-angle needle valve is provided between the first connector 504 and the third pipeline 5035, and the amount of smoke generated by a specific smoke generator 203 can be controlled by adjusting the right-angle needle valve.

[0079] When a vehicle is tested for smoke flow in a wind tunnel, there is an optimal smoke and oil pressure corresponding to different airflow velocities. When the airflow velocity in the wind tunnel is high, the smoke and oil pressure can be increased to increase the smoke flow and ensure the observation effect. When the airflow velocity is low, the smoke and oil pressure can be reduced to prevent the smoke flow from spreading excessively and to make the smoke flow clear.

[0080] Secondly, the second conduit 5033 is equipped with a flow rate regulating unit 5037, which can regulate the flow rate of e-liquid flowing through the second conduit 5033. The flow rate regulating unit 5037 can adjust the flow rate of e-liquid through the second conduit 5033, and the flow rate directly determines the amount of e-liquid supplied to the vapor generator 203 per unit time, thereby controlling the amount of vapor generated. At the same time, the flow rate regulation can also work in conjunction with the pressure regulation to optimize the vapor jet state, making the vapor presentation effect better.

[0081] Specifically, the oil supply unit 502 can be a bottle-shaped container, and the inlet end of the first pipe 5032 extends into the oil supply unit 502 to draw e-liquid from it. A filter 5038 is provided at the inlet end of the first pipe 5032 to filter impurities from the e-liquid. The oil pump 5031 can be a vortex pump paired with a frequency converter, the pressure regulating unit 5036 can be a pressure regulating valve, and the flow rate regulating unit 5037 can be a speed regulating connector.

[0082] In addition, the base 501 is equipped with heavy-duty connectors 7, the number of which is the same as the number of smoke generators 203, for example, eight. The heavy-duty connectors 7 are electrically connected to the smoke generators 203 via wires for supplying power to the smoke generators 203. The base 501 is also equipped with a control device, which can control the frequency converter to adjust the pumping speed of the eddy current pump and can also supply power to the heavy-duty connectors 7 so that the smoke generators 203 can operate normally.

[0083] To improve testing convenience, each smoke generator 203 in this embodiment is detachably connected to its corresponding first connector 504. Specifically, a nylon tube with a quick-connect fitting can be used to connect to both the first connector 504 and the smoke generator 203. Detachably connecting the smoke generator 203 to the first connector 504 allows the same oil supply system 5 to be used with different smoke generating devices, thus improving the versatility of the oil supply system 5.

[0084] Furthermore, to further enhance operational convenience, a second traveling part 505 is provided at the bottom of the base 501. The second traveling part 505 at the bottom of the base 501 allows the oil supply system 5 to be moved as needed, facilitating its adaptation and connection with the smoke generator. It also allows for the movable arrangement of the entire smoke generator system in conjunction with the movement of the smoke generator.

[0085] The second traveling part 505 can be made of, for example, rollers, casters, or a combination of guide rails and sliders, as long as it allows the base 501 to move easily and move in conjunction with the smoke generator. In this embodiment, the second traveling part 505 is made of casters.

[0086] The smoke generation system of this embodiment adopts the above design, in which multiple smoke generators 203 can be flipped and moved simultaneously, which can adapt to the requirements of smoke generation position height and arrangement direction in smoke flow test. During use, there is no need to repeatedly disassemble and assemble the smoke generators 203, which can save time and improve work efficiency.

[0087] Meanwhile, the smoke generation system is equipped with an oil supply system 5, which enables the smoke generation device to obtain a continuous supply of smoke oil, which helps the smoke generator 203 to continuously generate smoke, improves the uniformity and stability of the smoke flow, and provides a continuous and reliable smoke flow environment for the experiment.

[0088] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A smoke flow generating device, characterized in that: It includes a mounting base (1), a smoke generating mechanism (2), and a position adjustment mechanism (3) connected between the mounting base (1) and the smoke generating mechanism (2); The smoke generating mechanism (2) includes a rotation drive unit (201), a mounting rod (202) that is connected to the power output end of the rotation drive unit (201), and a plurality of smoke generating rods (203) mounted on the mounting rod (202). The plurality of smoke generating rods (203) are arranged at intervals along the length direction of the mounting rod (202). The position adjustment mechanism (3) is capable of adjusting the position of the smoke generating mechanism (2) on the mounting base (1) along a first direction and along a second direction; wherein the first direction and the second direction are arranged to intersect.

2. The smoke generator according to claim 1, characterized in that: The position adjustment mechanism (3) includes a first linear slide (301) mounted on the mounting base (1) and a second linear slide (302) mounted on the slide rail of the first linear slide (301). The rotation drive unit (201) includes a third motor mounted on the slide rail of the second linear slide (302), and the mounting rod (202) is mounted on the output shaft of the third motor.

3. The smoke generator according to claim 2, characterized in that: The drive unit of the first linear slide (301) includes a first motor (3011) mounted on the mounting base (1), and the output shaft of the first motor (3011) and the sliding rail of the first linear slide (301) are connected by a lead screw pair; and / or, The drive unit of the second linear slide (302) includes a second motor (3021) mounted on the slide rail of the first linear slide (301), and the output shaft of the second motor (3021) and the slide rail of the second linear slide (302) are connected by a rack and pinion transmission.

4. The smoke generator according to claim 2, characterized in that: The mounting base (1) includes a mounting base body (101), a first walking part (102) disposed at the bottom of the mounting base body (101), and a gripping part (103) mounted on one side of the mounting base body (101). The first linear slide (301) is mounted on the mounting base body (101).

5. The smoke generator according to claim 4, characterized in that: A control cabinet (4) is installed on the mounting base body (101). The control cabinet (4) is electrically connected to the drive unit of the first linear slide (301), the drive unit of the second linear slide (302), and the third motor, respectively.

6. The smoke generator according to any one of claims 2-5, characterized in that: The length direction of the mounting rod (202), the length direction of the smoke generator (203), and the axial direction of the output shaft of the third motor are arranged to intersect each other.

7. A smoke generation system, characterized in that: The device includes a smoke generator according to any one of claims 1-6, and an oil supply system (5) respectively connected to each of the smoke generator rods (203) of the smoke generator.

8. The smoke generation system according to claim 7, characterized in that: The oil supply system (5) includes a base (501), an oil supply part (502), an oil control part (503) and a plurality of first connectors (504) disposed on the base (501), the oil control part (503) being connected to the oil supply part (502) and the plurality of first connectors (504) respectively; The first connector (504) and the smoke generator (203) are connected in a one-to-one correspondence. The oil control unit (503) can drive the e-liquid in the oil supply unit (502) to flow into each of the smoke generators (203).

9. The smoke generation system according to claim 8, characterized in that: There are multiple oil control units (503), and each oil control unit (503) includes an oil pump (5031). The oil inlet of the oil pump (5031) is connected to the oil supply unit (502) through a first pipeline (5032), and the oil outlet of the oil pump (5031) is connected to a second connector (5034) through a second pipeline (5033). The second connector (5034) and multiple first connectors (504) are connected through a third pipeline (5035). The second pipe (5033) is provided with a pressure regulating part (5036), which can regulate the pressure of the e-liquid flowing through the second pipe (5033); and / or, the second pipe (5033) is provided with a flow rate regulating part (5037), which can regulate the flow rate of the e-liquid flowing through the second pipe (5033).

10. The smoke generation system according to claim 8, characterized in that: Each of the aforementioned smoke generators (203) is detachably connected to the corresponding first connector (504); and / or, The base (501) has a second walking part (505) at its bottom.

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