Vehicle mounted aircraft test stand

Abstract

The application relates to a vehicle-mounted aircraft test bench. The vehicle-mounted aircraft test bench comprises a seat body used for being connected with a transport vehicle, a support table rotatably arranged on the seat body, a locking assembly used for locking and releasing the support table and the seat body, and a driving assembly connected with the seat body and the support table respectively, and used for driving the support table to rotate relative to the seat body, so that the support table is folded on the seat body, and the support table is unfolded relative to the seat body. The scheme provided by the application can facilitate transportation and convenient operation of testers.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aircraft technology, in particular to a vehicle-mounted aircraft test bench. BACKGROUND

[0002] As a project promoted by the government in recent years, low-altitude economy is developing rapidly. Its core value injects new momentum into social development, provides new space for regional economy, new ways for social services, and new solutions for smooth transportation. As an important part of low-altitude economy, the in-depth study of flying cars is indispensable. The breakthrough of eVTOL technology makes flying cars feasible for mass production, industrialization, and commercialization.

[0003] The test of flying cars is usually divided into real machine flight test and wind tunnel test. These two test methods not only have high cost, but also have high safety risk. In order to truly make the technology of flying cars achieve qualitative leap, a large number of tests under different conditions must be carried out, but it is difficult to achieve through the above two test methods.

[0004] In related technologies, the flying car is tested by a vehicle-mounted test bench, so that the flying car can be tested under various conditions. However, the vehicle-mounted flying car test bench in related technologies is inconvenient to transport, needs to be disassembled for transportation under road condition restrictions, and needs to be reassembled for testing, which makes it inconvenient for test personnel to operate. SUMMARY

[0005] To solve or partially solve the problems in related technologies, the present application provides a vehicle-mounted aircraft test bench, which can facilitate transportation and facilitate test personnel operation.

[0006] The present application provides a vehicle-mounted aircraft test bench, comprising: a seat body for connecting with a transport vehicle; a support table rotatably arranged on the seat body; a locking assembly for locking and releasing the support table and the seat body; a driving assembly connected with the seat body and the support table respectively, the driving assembly being used to drive the support table to rotate relative to the seat body, so that the support table is folded on the seat body, and the support table is unfolded relative to the seat body.

[0007] Further, the driving assembly comprises a first driving member, a first connecting arm and a second connecting arm, one end of the first connecting arm is rotatably connected with the seat body, the other end of the first connecting arm is rotatably connected with the second connecting arm, the second connecting arm is rotatably connected with the support table, and the first driving member is used to drive the first connecting arm to rotate.

[0008] Further, the first driving member is a telescopic driving member, one end of the first driving member is rotationally connected with the seat body, and the other end of the first driving member is rotationally connected with the first connecting arm.

[0009] When the first driving member is retracted, the support table can be folded on the seat body through the first connecting arm and the second connecting arm; and when the first driving member is extended, the support table can be unfolded relative to the seat body through the first connecting arm and the second connecting arm.

[0010] Further, the seat body is provided with a first rotating shaft, the first connecting arm is rotationally connected with the seat body through the first rotating shaft, the first connecting arm is provided with a second rotating shaft and a third rotating shaft, the first driving member is rotationally connected with the first connecting arm through the second rotating shaft, the second connecting arm is rotationally connected with the first connecting arm through the third rotating shaft, and the second connecting arm is provided with a fourth rotating shaft.

[0011] Further, the first connecting arm and the second connecting arm are both two, the two first connecting arms are oppositely arranged, and the two second connecting arms are oppositely arranged.

[0012] Further, the support table is provided with a fifth rotating shaft, and the support table is rotationally connected with the seat body through the fifth rotating shaft.

[0013] Further, the locking assembly comprises a first locking member, a locking hole, and a second driving member for driving the first locking member to extend into and out of the locking hole.

[0014] The locking hole is arranged on the support table, and the second driving member is arranged on the seat body; or the locking hole is arranged on the seat body, and the second driving member is arranged on the support table.

[0015] Further, the locking assembly comprises a second locking member and a third driving member, the second locking member is provided with a clamping groove, and the third driving member is used for driving the second locking member to move, so as to clamp and lock the seat body and the support table through the clamping groove when the support table is unfolded relative to the seat body.

[0016] Further, the seat body is provided with a first plate body, the support table is provided with a second plate body, and the second locking member can clamp and lock the first plate body and the second plate body through the clamping groove.

[0017] Further, the width of the seat body gradually decreases from bottom to top, and the support table is arranged at the top of the seat body; and / or

[0018] The seat body and the support table are both hollow structures.

[0019] The technical scheme provided by the present application can have the following beneficial results: the support table is driven to rotate relative to the seat body by the driving assembly to realize folding and unfolding, so that the test bench can be compactly folded on the seat body in a non-test state, greatly reducing the space occupation, facilitating the direct overall transfer of the transport vehicle under various road conditions, without the need of disassembly and reinstallation, the locking assembly is used to realize the quick locking and loosening of the support table and the seat body, ensuring the stability and safety of the test bench during testing, thereby simplifying the operation process of the test personnel, effectively reducing the test cost and time, and improving the test efficiency and convenience.

[0020] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout the several views, and in which:

[0022] Figure 1 is a structural schematic view of a vehicle-mounted aircraft test bench shown in an embodiment of the present application;

[0023] Figure 2 is an exploded schematic view of a vehicle-mounted aircraft test bench shown in an embodiment of the present application;

[0024] Figure 3 is a structural schematic view of a driving assembly shown in an embodiment of the present application;

[0025] Figure 4 is a structural schematic view of a seat body shown in an embodiment of the present application;

[0026] Figure 5 is a structural schematic view of a support table shown in an embodiment of the present application;

[0027] Figure 6 is a structural schematic view of a first locking member and a second driving member shown in an embodiment of the present application;

[0028] Figure 7 is a structural schematic view of a second locking member, a third driving member, a first plate body and a second plate body shown in an embodiment of the present application;

[0029] Figure 8 is a sectional view of Figure 7 .

[0030] Reference numerals: 1-base, 2-support platform, 3-locking assembly, 31-first locking element, 32-locking hole, 33-second driving element, 34-second locking element, 341-slot, 35-third driving element, 4-driving assembly, 41-first driving element, 42-first connecting arm, 43-second connecting arm, 44-second rotating shaft, 45-third rotating shaft, 46-fourth rotating shaft, 5-first rotating shaft, 6-fifth rotating shaft, 7-first plate, 8-second plate, 9-bracket, 10-bolt. Detailed Implementation

[0031] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0032] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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 of this application.

[0034] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In the related art, an aircraft is tested by a vehicle-mounted test bench, so that the aircraft can be tested under various conditions. However, the vehicle-mounted aircraft test bench in the related art is inconvenient to transport, and needs to be disassembled for transportation under road condition restrictions, for example, when passing through a height-restricted section, the height of the vehicle-mounted aircraft test bench is too high, so it needs to be disassembled and transported to the test site, and then needs to be reassembled for testing. The operator needs to spend a lot of time for assembly and disassembly, which affects the test efficiency.

[0036] To solve the above problems, the embodiment of the present application provides a vehicle-mounted aircraft test bench which can facilitate transportation and convenient operation for test personnel.

[0037] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0038] As shown in the drawings, Figures 1 to 5 The embodiment of the present application provides a vehicle-mounted aircraft test bench, which comprises a seat body 1, a support table 2, a locking assembly 3 and a driving assembly 4. The seat body 1 is used to connect with a transport vehicle. The support table 2 is rotatably arranged on the seat body 1. The locking assembly 3 is used to lock and release the support table 2 and the seat body 1. The driving assembly 4 is connected with the seat body 1 and the support table 2 respectively. The driving assembly 4 is used to drive the support table 2 to rotate relative to the seat body 1, so that the support table 2 is folded on the seat body 1, and the support table 2 is unfolded relative to the seat body 1.

[0039] The lower end of the seat body 1 is fixedly connected with the transport vehicle, and the seat body 1 provides a stable support foundation for the entire test bench. The support table 2 is arranged at the upper end of the seat body 1. The support table 2 is used to carry the measured equipment, such as rotors, cockpits, power suits, and entire aircrafts. The support table 2 is detachably connected with a support 9. The support 9 is used to fix the measured equipment. The support table 2 carries the measured equipment through the support 9, and can test different measured equipment by replacing different supports 9 on the support table 2. The upper end of the support 9 in the drawing can fix the rotors. The support 9 can be detachably connected with the support table 2 through bolts 10 arranged on the support table 2. The support table 2 forms a foldable connection with the seat body 1 through a rotating pair. The rotating axis can be perpendicular to the forward direction of the vehicle to adapt to the space constraint in the transportation state.

[0040] The locking assembly 3 locks the support table 2 and the seat body 1 when the support table 2 is unfolded relative to the seat body 1, so as to ensure the stability of the test bench. The locking assembly 3 releases the support table 2 and the seat body 1 when the support table 2 needs to be folded on the seat body 1, so as to ensure that the support table 2 can be folded on the seat body 1.

[0041] The vehicle-mounted aircraft test bench of the above scheme folds the support table 2 on the seat body 1 in the transportation state, and can be attached to one side of the seat body 1, for example Figure 1The central support platform 2 can be rotated counterclockwise and folded to fit against the left side wall of the base 1, forming a compact transport configuration. This reduces the overall height of the test bench, meeting height-restricted road conditions. After transport to the test site, it automatically unfolds via the drive assembly 4 and is locked in place by the locking assembly 3. This avoids the repeated installation and debugging caused by traditional bench disassembly and transportation, while the locking mechanism ensures structural stability during testing. This folding and unfolding mechanism directly addresses the conflicting needs of transporting and using vehicle-mounted test benches, creatively applying foldable technology to the field of aircraft testing, achieving a balance between convenient transportation and reliable testing.

[0042] The drive assembly 4 is used to drive the support platform 2 to rotate relative to the base 1. However, in the specific structural design of the drive assembly 4, if only a single drive component is used, it may lead to uneven torque transmission and unstable motion trajectory during the drive process, thereby affecting the operating accuracy and reliability of the test bench.

[0043] In this regard, such as Figures 1 to 3 As shown, in some embodiments, the drive assembly 4 includes a first drive member 41, a first connecting arm 42 and a second connecting arm 43. One end of the first connecting arm 42 is rotatably connected to the base 1, and the other end of the first connecting arm 42 is rotatably connected to the second connecting arm 43. The second connecting arm 43 is rotatably connected to the support platform 2. The first drive member 41 is used to drive the first connecting arm 42 to rotate.

[0044] Specifically, the first driving member 41 drives the first connecting arm 42 to rotate around the base 1, thereby causing the second connecting arm 43 to move. When the second connecting arm 43 moves, it can rotate relative to the support platform 2, thereby causing the support platform 2 to fold towards the base 1. During the unfolding process, the first driving member 41 drives the first connecting arm 42 to rotate in the opposite direction, and the first connecting arm 42 unfolds the support platform 2 to a predetermined position through the second connecting arm 43. The rotational connection between the first connecting arm 42 and the second connecting arm 43 decomposes the driving force into multiple components during transmission, effectively reducing the load pressure on a single rotating shaft.

[0045] The multi-stage linkage transmission structure of drive component 4 effectively disperses the driving load and enhances the stability of the overall structure. The driving force of the first drive component 41 is transmitted through the multi-link structure of the first connecting arm 42 and the second connecting arm 43, ensuring the balance of torque transmission and preventing the support platform 2 from shifting or jamming during movement. This design improves the operational accuracy and reliability of the test bench, making the folding and unfolding actions of the support platform 2 smoother and more stable.

[0046] In some embodiments, the first driving member 41 is a telescopic driving member, with one end of the first driving member 41 rotatably connected to the seat body 1 and the other end of the first driving member 41 rotatably connected to the first connecting arm 42. When the first driving member 41 retracts, it can drive the support platform 2 to fold onto the seat body 1 through the first connecting arm 42 and the second connecting arm 43. When the first driving member 41 extends, it can drive the support platform 2 to unfold relative to the seat body 1 through the first connecting arm 42 and the second connecting arm 43.

[0047] The telescopic drive component can be a hydraulic cylinder, an electric actuator, or a pneumatic cylinder, preferably a hydraulic cylinder. When the telescopic drive component extends or retracts linearly, its motion trajectory is converted into the rotational motion of the first connecting arm 42, which is then transmitted to the support platform 2 via the second connecting arm 43. When the telescopic drive component retracts, it drives the first connecting arm 42 to rotate counterclockwise. The rotation of the first connecting arm 42 causes the second connecting arm 43 to swing, thereby forcing the support platform 2 to fold against the base 1. When the telescopic drive component extends, its output end extends outward, driving the first connecting arm 42 to rotate clockwise, which in turn pushes the support platform 2 to unfold via the second connecting arm 43.

[0048] Optionally, the first driving component 41 uses a hydraulic cylinder as the telescopic driving component. The cylinder body of the hydraulic cylinder is connected to the base 1 by a hinge, and the end of the piston rod is rotatably connected to the first connecting arm 42. When it is necessary to fold the support platform 2, the hydraulic system controls the hydraulic cylinder to retract, the piston rod retracts into the cylinder body, and drives the first connecting arm 42 to rotate around its connection point with the base 1. The rotation of the first connecting arm 42 transmits torque through the second connecting arm 43 hinged to it, thereby driving the support platform 2 to fold towards the base 1. The unfolding process is the opposite: the hydraulic system controls the hydraulic cylinder to extend, the piston rod extends, pushes the first connecting arm 42 to rotate, and unfolds the support platform 2 to the working position through the second connecting arm 43.

[0049] In some embodiments, such as Figures 3 to 5 As shown, the base 1 is provided with a first rotating shaft 5, and the first connecting arm 42 is rotatably connected to the base 1 through the first rotating shaft 5. The first connecting arm 42 is provided with a second rotating shaft 44 and a third rotating shaft 45. The first driving member 41 is rotatably connected to the first connecting arm 42 through the second rotating shaft 44. The second connecting arm 43 is rotatably connected to the first connecting arm 42 through the third rotating shaft 45. The second connecting arm 43 is provided with a fourth rotating shaft 46, and the second connecting arm 43 is rotatably connected to the support platform 2 through the fourth rotating shaft 46.

[0050] At least one of the seat body 1 and the first connecting arm 42 is rotationally connected with the first rotating shaft 5, for example, both of them are rotationally connected with the first rotating shaft 5; at least one of the first connecting arm 42 and the first driving member 41 is rotationally connected with the second rotating shaft 44, for example, both of them are rotationally connected with the second rotating shaft 44; at least one of the first connecting arm 42 and the second connecting arm 43 is rotationally connected with the third rotating shaft 45, for example, both of them are rotationally connected with the third rotating shaft 45; at least one of the second connecting arm 43 and the support table 2 is rotationally connected with the fourth rotating shaft 46, for example, both of them are rotationally connected with the fourth rotating shaft 46.

[0051] Specifically, when the first driving member 41 is retracted, the first connecting arm 42 is pulled to rotate around the first rotating shaft 5 by the second rotating shaft 44, at this time, the third rotating shaft 45 drives the second connecting arm 43 to move towards the seat body 1, and the support table 2 is folded downwards around the fourth rotating shaft 46; when the first driving member 41 is extended, the first connecting arm 42 is pushed to rotate in the opposite direction around the first rotating shaft 5 by the second rotating shaft 44, the third rotating shaft 45 pushes the second connecting arm 43 to stretch outwards, and the support table 2 is stably unfolded around the fourth rotating shaft 46. The first rotating shaft 5 transmits the driving force along the predetermined trajectory by limiting the rotational freedom of the first connecting arm 42; the first driving member 41, the second rotating shaft 44 and the first connecting arm 42 drive the second connecting arm 43 to move through the lever effect, and amplify the driving force through the lever principle. The coordinated action of each rotating shaft solves the problems of force dispersion at the connection point and unstable movement trajectory, thereby improving the reliability and precision of the action of the support table 2.

[0052] In some embodiments, as shown in Figure 3 The first connecting arm 42 and the second connecting arm 43 each have two, the two first connecting arms 42 are oppositely arranged, and the two second connecting arms 43 are oppositely arranged.

[0053] The two first connecting arms 42 are rotationally connected with the seat body 1 through the first rotating shaft 5, and are connected with the corresponding second connecting arms 43 through the third rotating shaft 45. The two second connecting arms 43 are rotationally connected with the support table 2 through the fourth rotating shaft 46. The symmetrical layout of the two first connecting arms 42 causes the driving torque generated when the first driving member 41 is retracted to be evenly distributed to both sides, avoiding that a single connecting arm bears the entire load; the parallel arrangement of the two second connecting arms 43 further disperses the rotating load of the support table 2 to both sides.

[0054] In some embodiments, as shown in Figure 5 The support table 2 is rotationally connected with the seat body 1 through the fifth rotating shaft 6. At least one of the support table 2 and the seat body 1 is rotationally connected with the fifth rotating shaft 6, for example, both of them are rotationally connected with the fifth rotating shaft 6.

[0055] The traditional locking mode for locking the support table 2 and the seat body 1 has problems of complicated operation, insufficient locking reliability or inability to quickly realize locking and loosening, resulting in insufficient stability or low efficiency of the test bench when being unfolded or folded.

[0056] To this end, in some embodiments, as shown in Figure 5 and Figure 6 , the locking assembly 3 includes a first locking piece 31, a locking hole 32, and a second driving piece 33 for driving the first locking piece 31 to extend into and out of the locking hole 32. Among them, the locking hole 32 is arranged on the support table 2, and the second driving piece 33 is arranged on the seat body 1. In other embodiments, the locking hole 32 can also be arranged on the seat body 1, and the second driving piece 33 is arranged on the support table 2.

[0057] Among them, the first locking piece 31 can be selected as a latch structure, the second driving piece 33 can be selected as a hydraulic cylinder, and the locking hole 32 can be arranged on the positioning plate on the side of the support table 2 or the top of the seat body 1. The piston rod axis of the second driving piece 33 coincides with the axis of the locking hole 32 of the support table 2.

[0058] Specifically, a position detection device, such as an optical sensor, can also be arranged on the seat body 1 or the support table 2. When it is detected that the support table 2 is unfolded to the position, the second driving piece 33 drives the first locking piece 31 to move along a straight line and insert into the locking hole 32. During the folding operation, the second driving piece 33 moves reversely to make the locking piece exit the locking hole 32. The support table 2 has locking holes 32 on both sides, and the first locking piece 31 and the second driving piece 33 also have two respectively, so that the support table 2 can be locked from both sides.

[0059] Through the above technical solutions, the support table 2 and the seat body 1 are quickly and reliably locked and unlocked. The cooperation of the first locking piece 31 and the locking hole 32 provides accurate positioning and stable mechanical connection, ensuring the stability of the support table 2 in the unfolded state. The use of the second driving piece 33 realizes the automation of the locking process, reduces manual operation, and improves operation efficiency. Compared with the traditional manual locking mode, this locking mode greatly improves the unfolding and folding efficiency of the test bench, ensures the reliability of the locking, and effectively solves the problems of complicated operation and unstable locking.

[0060] The traditional locking mode may not be reliable due to insufficient mechanical structure cooperation precision or external force interference, and there is a risk of displacement or loosening between the support table 2 and the seat body 1, affecting the stability and safety of the test bench in the unfolded state.

[0061] In contrast, in some embodiments, as shown in Figure 7 and Figure 8As shown, the locking assembly 3 comprises a second locking piece 34 and a third driving piece 35. The second locking piece 34 is provided with a clamping groove 341. The third driving piece 35 is used to drive the second locking piece 34 to move, so as to clamp and lock the support table 2 and the seat body 1 through the clamping groove 341 when the support table 2 is unfolded relative to the seat body 1.

[0062] The second locking piece 34 can adopt a plate structure or a block structure. The cross-sectional shape of the clamping groove 341 can be U-shaped, V-shaped or trapezoidal. The third driving piece 35 can be selected from a hydraulic cylinder, a pneumatic cylinder or a motor-driven lead screw mechanism. A linear guide rail or a sliding groove structure can be arranged between the second locking piece 34 and the seat body 1 to ensure the linearity of the moving track. The inner wall of the clamping groove 341 can be processed into a rough surface or provided with anti-skid lines to enhance the clamping friction. The second locking piece 34 and the third driving piece 35 can be arranged on the seat body 1 or the support table 2. The number of the second locking pieces 34 is two and they are arranged oppositely. The two second locking pieces 34 are configured to move towards or away from each other. The third driving piece 35 can be two or one. When the third driving piece 35 is two, it is connected with the corresponding second locking piece 34 respectively. When the third driving piece 35 is one, the two second locking pieces 34 are arranged at opposite ends of the third driving piece 35.

[0063] During the driving of the transport vehicle, the mechanical fitting of the clamping groove 341 with the seat body 1 and the support table 2 effectively resists the vibration impact caused by the road bumps, avoiding the relative displacement between the support table 2 and the seat body 1. The constraint of the clamping groove 341 forms a stable support structure for the support table 2 in the unfolded state. The torsional stiffness is more than twice that of the single-point pin locking mode, meeting the stability requirements of the vehicle-mounted test bench under high-speed moving conditions. The second locking piece 34 is used in cooperation with the first locking piece 31, so that the support table 2 has a double-protected locking mechanism, further improving the stability and safety of the locking.

[0064] In some embodiments, as shown in Figures 4 to 8 The seat body 1 is provided with a first plate body 7, and the support table 2 is provided with a second plate body 8. The second locking piece 34 can clamp and lock the first plate body 7 and the second plate body 8 through the clamping groove 341. The first plate body 7 is fixed on the top of the seat body 1, and the second plate body 8 is fixed on the bottom of the support table 2. After the support table 2 is unfolded, the first plate body 7 and the second plate body 8 are attached. The clamping groove 341 clamps and fastens the first plate body 7 and the second plate body 8 together, thereby locking the support table 2 and the seat body 1.

[0065] In some embodiments, as shown in Figure 1 and Figure 4 The width of the seat body 1 gradually decreases from bottom to top, and the support table 2 is arranged at the top of the seat body 1. The lower end of the seat body 1 can be fixedly installed on the transport vehicle. The width of the seat body 1 gradually decreases from bottom to top, which makes the support of the seat body 1 more stable. Specifically, the seat body 1 has a trapezoidal structure.

[0066] In some embodiments, as shown in Figures 1 to 5 The seat body 1 and the support table 2 are both hollow structures, each hollow surface is composed of a triangular structure of steel bars, which not only reduces the weight of the test bench, but also increases the stability of the test bench. The hollow design reduces the influence of the test bench itself caused by wind resistance during the truck test bench running.

[0067] The vehicle-mounted aircraft test bench of the embodiment can be placed on the truck. Before the truck enters the height-limited area, the double locking structure is unlocked. After unlocking, the signal is sent from the cab controller to the first driving part 41, so that the first driving part 41 retracts. The first driving part 41 pulls down the support table 2 through the first connecting arm 42 and the second connecting arm 43, and completes the folding working condition of the test bench. When the test bench needs to be tested, the first driving part 41 is controlled to extend from the cab, and the folded support table 2 is lifted to the top of the seat body 1 through the first connecting arm 42 and the second connecting arm 43, and then the first locking part 31 and the second locking part 34 are controlled to lock the support table 2. At this time, the test working condition of the test bench is completed.

[0068] The vehicle-mounted aircraft test bench of the embodiment can perform eVTOL aircraft performance test items, and can test the power system under different working conditions such as vertical take-off, tilt acceleration, and high-speed cruising. For example, the six-direction force, system control, vibration, noise, and other performances under different tilt angles, different tilt speeds, different vehicle speeds, different rotation speeds, and different pitch angles can be quantitatively tested. The durability test of the power system can also be performed. Because the truck test bench is movable, it can be moved to high-temperature, high-cold, and high-altitude areas for special testing.

[0069] The upper part of the support table 2 is provided with replaceable supports 9, which can replace different experimental objects according to actual needs, can withstand the influence of blade tension, vehicle driving bumps, and moving inertia during testing, can support large weight rotors, cabins, and power sets for testing and will not affect the experimental results during high-speed driving. The height of the test bench is high, and the diameter of the blade is 3.5 meters, and it is not affected by the air resistance of the cab during high-speed driving. Two vibration sensors can be installed during testing, which are placed on the rotor mechanical arm near the rotor and near the two sides of the test bench. The purpose is to monitor the vibration amplitude of the rotor and the truck to the test bench and the mechanical arm under working conditions, to ensure the safe operation of the working conditions, and to conduct the test data feedback from the upper test system to the data acquisition system for analysis.

[0070] The solutions of the present application have been described in detail above with reference to the accompanying drawings. In the above examples, the description of each example is focused on respectively, and the parts not described in detail in a certain example can be referred to the relevant description of other examples. It should also be known by those skilled in the art that the actions and modules involved in the specification are not necessarily required by the present application. In addition, it can be understood that the steps in the method of the embodiments of the present application can be adjusted, combined and reduced in sequence according to actual needs, and the modules in the device of the embodiments of the present application can be combined, divided and reduced according to actual needs.

[0071] The above has described various embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A vehicle mounted flying vehicle test stand, characterized by, The utility model relates to a vehicle-mounted aircraft test bench which comprises a seat body for connecting with a transport vehicle, a support table rotatably arranged on the seat body, a locking assembly for locking and releasing the support table and the seat body, and a driving assembly connected with the seat body and the support table respectively, the driving assembly being used to drive the support table to rotate relative to the seat body so as to fold the support table on the seat body and unfold the support table relative to the seat body. The driving assembly comprises a first driving member, a first connecting arm and a second connecting arm, one end of the first connecting arm is rotatably connected with the seat body, the other end of the first connecting arm is rotatably connected with the second connecting arm, the second connecting arm is rotatably connected with the support table, and the first driving member is used to drive the first connecting arm to rotate. One end of the first driving member is rotatably connected with the seat body, and the other end of the first driving member is rotatably connected with the first connecting arm. The locking assembly comprises a first locking member, a locking hole and a second driving member used to drive the first locking member to extend into and out of the locking hole. The locking hole is arranged on the support table, and the second driving member is arranged on the seat body, or the locking hole is arranged on the seat body, and the second driving member is arranged on the support table. The locking assembly comprises a second locking member and a third driving member, the second locking member is provided with a clamping groove, and the third driving member is used to drive the second locking member to move so as to clamp and lock the support table and the seat body through the clamping groove when the support table is unfolded relative to the seat body. The seat body is provided with a first plate body, the support table is provided with a second plate body, and the second locking member can clamp and lock the first plate body and the second plate body through the clamping groove.

2. The vehicle-mounted aircraft test bench according to claim 1, wherein the first driving member is a telescopic driving member. When the first driving member is retracted, the support table can be folded on the seat body through the first connecting arm and the second connecting arm, and when the first driving member is extended, the support table can be unfolded relative to the seat body through the first connecting arm and the second connecting arm.

3. The vehicle-mounted aircraft test bench according to claim 2, wherein the seat body is provided with a first rotating shaft, the first connecting arm is rotatably connected with the seat body through the first rotating shaft, the first connecting arm is provided with a second rotating shaft and a third rotating shaft, the first driving member is rotatably connected with the first connecting arm through the second rotating shaft, the second connecting arm is rotatably connected with the first connecting arm through the third rotating shaft, and the second connecting arm is provided with a fourth rotating shaft, and the second connecting arm is rotatably connected with the support table through the fourth rotating shaft.

4. The vehicle-mounted aircraft test bench according to claim 1, wherein the first connecting arm and the second connecting arm are both provided with two, and the two first connecting arms are oppositely arranged, and the two second connecting arms are oppositely arranged.

5. The vehicle-mounted aircraft test bench according to claim 1, wherein the support table is provided with a fifth rotating shaft, and the support table is rotatably connected with the seat body through the fifth rotating shaft. ​ ​ ​ ​ ​ ​ ​ ​ 6. The vehicle-mounted aircraft test bench according to claim 1, characterized in that: a width of the seat body gradually decreases from bottom to top, and the support table is arranged at a top of the seat body; and / or the seat body and the support table are both hollow structures.

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