Test equipment for electric drive assembly of flying car

Abstract

The application discloses a test equipment for an electric drive assembly of a flying car, which comprises a rack, a mounting rack and two loading devices. The mounting rack is arranged on the rack and is used for mounting the electric drive assembly to be tested. The two loading devices are respectively arranged above and below the mounting rack and are respectively used for being connected with upper and lower output shafts of the electric drive assembly to be tested so as to respectively apply forces to the upper and lower output shafts. The application simulates the actual arrangement mode and use environment of the electric drive assembly of the flying car, so that the test result is more reliable.

Description

Technical Field

[0001] This invention relates to the field of flying car testing equipment technology, and in particular to a testing device for an electric drive assembly for a flying car. Background Technology

[0002] With the advancement of technology and social development, people's living standards have improved significantly, and their demands for travel have also increased. However, due to increasingly congested traffic in cities, especially large cities, people are wasting more and more time in traffic jams. How can we make travel more convenient and faster? People have come up with the idea of ​​developing flying cars. Flying cars can travel on roads like cars, but they can also fly in the air to avoid traffic jams, allowing them to reach their destination quickly and conveniently.

[0003] In related technologies, the testing of electric drive assemblies for automobiles mainly uses horizontally placed test benches. However, since the structure, layout, and operating environment of electric drive assemblies for flying cars are different from those for automobiles, the use of horizontally placed test benches cannot apply simulated rotor loads to the output shaft of the electric drive assembly. Therefore, there is an urgent need for a testing device suitable for electric drive assemblies for flying cars. Summary of the Invention

[0004] The main objective of this invention is to provide a testing device for an electric drive assembly for a flying car, which aims to simulate the actual layout and operating environment of the electric drive assembly for a flying car, thereby making the test results more reliable.

[0005] To achieve the above objectives, the testing equipment for the electric drive assembly of the flying car proposed in this invention includes:

[0006] frame;

[0007] Mounting bracket, the mounting bracket being disposed on the rack, the mounting bracket being used to mount the electric drive assembly under test; and

[0008] Two loading devices are located above and below the mounting bracket, respectively. The two loading devices are respectively connected to the upper output shaft and the lower output shaft of the electric drive assembly under test, so as to apply force to the upper output shaft and the lower output shaft, respectively.

[0009] In one embodiment of the present invention, the loading device includes:

[0010] A loading disk is disposed on the frame and has an assembly cavity for mounting the upper output shaft or the lower output shaft.

[0011] A horizontal loading assembly is provided on the frame, the output end of the horizontal loading device is connected to the loading disk, and the horizontal loading assembly provides a radial force to the loading disk;

[0012] A vertical loading assembly is provided on the frame, and the output end of the vertical loading assembly is connected to the loading disk. The vertical loading assembly provides a force to the loading disk that is parallel to the axial direction of the loading disk.

[0013] In one embodiment of the present invention, the vertical loading assembly includes two vertical loading members, which are disposed on the frame. The output end of the vertical loading member is connected to the loading disk, and the two vertical loading members are symmetrically arranged with the axis of the loading disk as the axis of symmetry.

[0014] In one embodiment of the present invention, the vertical loading member is an electric cylinder, and the horizontal loading component is an electric cylinder.

[0015] In one embodiment of the present invention, the testing equipment for the electric drive assembly of the flying car further includes a torque sensor, which is connected to the output end of the loading disk.

[0016] In one embodiment of the present invention, the testing equipment for the electric drive assembly of the flying car further includes a turning device, the turning device comprising:

[0017] The corner body is disposed on the frame; the corner body is disposed on the side of the loading disk opposite to the upper output shaft and / or the side of the loading disk opposite to the lower output shaft.

[0018] A first connector is located on the side of the corner body facing the loading disk, and is connected to the output end of the loading disk, and is coaxially arranged; and

[0019] The second connector is disposed on the periphery of the corner body, and the extension direction of the second connector is perpendicular to the extension direction of the first connector. The second connector is connected to the torque sensor.

[0020] In one embodiment of the present invention, the testing equipment for the electric drive assembly of the flying car further includes a dynamometer, which is coaxially connected to the second connector.

[0021] In one embodiment of the present invention, the loading disk includes:

[0022] The loading disk body is connected to the horizontal loading component and the vertical loading component; and

[0023] A docking seat is connected to the loading disk body and is coaxially arranged; the docking seat is provided with the assembly cavity, and the cavity wall of the assembly cavity is provided with a limiting groove.

[0024] In one embodiment of the present invention, a support platform is provided on the periphery of the loading disk body, and the vertical loading component is connected to the support platform.

[0025] In one embodiment of the present invention, the test equipment for the electric drive assembly of the flying car further includes a controller, which is electrically connected to the two loading devices.

[0026] In this invention, a frame provides the mounting base, and the mounting bracket is used to mount the electric drive assembly under test. Two loading devices are located above and below the mounting bracket, forming a vertical arrangement. After the flying car electric drive assembly is mounted on the mounting bracket, the upper output shaft of the electric drive assembly under test is connected to one loading device, and the lower output shaft is connected to another loading device. The two loading devices apply forces to the upper and lower output shafts respectively to simulate the stress conditions of the flying car electric drive assembly during use. This invention proposes a vertically arranged testing device for testing flying car electric drive assemblies. During performance and reliability testing, axial forces, lateral forces, and bending moments can be applied to the upper and lower output shafts of the electric drive assembly under test to simulate the actual layout and operating environment of the flying car electric drive assembly, making the test results more reliable. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the electric drive assembly layout for a flying car.

[0029] Figure 2 This is a schematic diagram of the structure of a test device for the electric drive assembly of the flying car of the present invention;

[0030] Figure 3 for Figure 2 Schematic diagram of the upper and middle loading device;

[0031] Figure 4 A schematic diagram illustrating the application of lateral force;

[0032] Figure 5 This is a schematic diagram showing the application of axial force and bending moment.

[0033] Explanation of icon numbers:

[0034]

[0035]

[0036] The implementation, functional features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0040] like Figure 1 This invention illustrates an arrangement of an electric drive assembly for a flying car. The assembly comprises two motors, two motor controllers, and two reducers, and is inseparable from each other. The electric drive assembly 200 is fixed to one end of an arm 300. The upper output shaft 210 of the electric drive assembly 200 faces upward and is connected to a propeller 400, while the lower output shaft 220 faces downward and is also connected to the propeller 400. Both the upper output shaft 210 and the lower output shaft 220 are subjected to axial force, lateral force, and bending moment. This invention proposes a testing device for the electric drive assembly of a flying car. By applying axial force, lateral force, and bending moment to the upper output shaft 210 and the lower output shaft 220, the device simulates the lateral force, axial force, and bending moment experienced by the rotor of the flying car's electric drive assembly, thus completing the testing of the flying car's electric drive assembly.

[0041] In embodiments of the present invention, such as Figure 2 As shown, the test equipment for the electric drive assembly of the flying car includes a frame 1, a mounting bracket 2, and two loading devices. The mounting bracket 2 is located on the frame 1 and is used to mount the electric drive assembly 200 under test. The two loading devices are located above and below the mounting bracket 2, respectively, and are used to connect to the upper output shaft 210 and the lower output shaft 220 of the electric drive assembly 200 under test, respectively, to apply forces to the upper output shaft 210 and the lower output shaft 220. Figure 2 As shown, the two loading devices are an upper loading device 3a and a lower loading device 3b. The upper loading device 3a is used to connect to the upper output shaft 210 of the electric drive assembly 200 under test to apply a force to the upper output shaft 210. The lower loading device 3b is used to connect to the lower output shaft 220 of the electric drive assembly 200 under test to apply a force to the lower output shaft 220.

[0042] In this invention, a frame 1 provides the mounting base, and a mounting bracket 2 is used to mount the electric drive assembly 200 under test. Two loading devices are located above and below the mounting bracket 2, forming a vertical arrangement. After the flying car electric drive assembly is mounted on the mounting bracket 2, the upper output shaft 210 of the electric drive assembly 200 under test is connected to one loading device, and the lower output shaft 220 is connected to another loading device. The two loading devices apply forces to the upper output shaft 210 and the lower output shaft 220 respectively to simulate the stress conditions of the flying car electric drive assembly 200 during use. This invention proposes a vertically arranged testing device for testing the flying car electric drive assembly 200. During performance and reliability testing, axial force, lateral force, and bending moment can be applied to the upper output shaft 210 and the lower output shaft 220 of the electric drive assembly 200 under test to simulate the actual arrangement and operating environment of the flying car electric drive assembly 200, making the test results more reliable.

[0043] In one embodiment of the present invention, such as Figure 3 As shown, the loading device includes a loading disk, a horizontal loading assembly, and a vertical loading assembly. The loading disk is mounted on the frame 1 and has an assembly cavity for mounting the upper output shaft 210 or the lower output shaft 220. The horizontal loading assembly is mounted on the frame 1, and its output end is connected to the loading disk. The horizontal loading assembly provides a radial force to the loading disk. The vertical loading assembly is mounted on the frame 1, and its output end is connected to the loading disk. The vertical loading assembly provides a force parallel to the axial direction of the loading disk.

[0044] Understandably, the loading disk is provided with an assembly cavity to provide assembly space for the upper output shaft 210 or the lower output shaft 220. A horizontal loading assembly applies a radial force to the loading disk, which then transmits the force to the upper output shaft 210 or the lower output shaft 220, simulating the lateral force experienced by the upper output shaft 210 or the lower output shaft 220. A vertical loading assembly applies a force parallel to the axial direction of the loading disk, which then transmits the force to the upper output shaft 210 or the lower output shaft 220, simulating the axial force and bending moment experienced by the upper output shaft 210 or the lower output shaft 220.

[0045] refer to Figure 4 The horizontal loading component is an electric cylinder. Figure 4 The calculation method for the lateral force on the upper output shaft 210 or the lower output shaft 220 is shown: F_side = F1 × L2 / L1, where F_side is the lateral force on the upper output shaft 210 or the lower output shaft 220, F1 is the force exerted by the electric cylinder on the loading plate, L2 is the distance from the connection point between the loading plate and the electric cylinder to the connection point between the upper output shaft 210 or the lower output shaft 220 and the loading plate, and L1 is the distance from the connection point between the upper output shaft 210 and the electric drive assembly 200 to the loading plate.

[0046] There are two loading disks: an upper loading disk 31a and a lower loading disk. The upper loading disk 31a is spaced apart from the lower loading disk, and the upper loading disk 31a is located above the lower loading disk. The upper loading disk 31a has an upper assembly cavity for connecting with the upper output shaft 210; the lower loading disk has a lower assembly cavity for connecting with the lower output shaft 220.

[0047] There are two horizontal loading components: an upper horizontal loading component 32a and a lower horizontal loading component. The upper horizontal loading component 32a and the lower horizontal loading component are spaced apart, with the upper horizontal loading component 32a positioned above the lower horizontal loading component. The mounting bracket 2 is located between the upper horizontal loading component 32a and the lower horizontal loading component.

[0048] In this embodiment, both the upper horizontal loading component 32a and the lower horizontal loading component are electric cylinders. Each electric cylinder includes a servo motor and a lead screw, with the output end of the lead screw connected to the loading disk. The servo motor controls the movement of the lead screw's output end to control the magnitude of the force exerted by the horizontal loading components on the loading disk.

[0049] There are two vertical loading components: an upper vertical loading component 33a and a lower vertical loading component. The upper vertical loading component 33a and the lower vertical loading component are spaced apart, with the upper vertical loading component 33a located above the lower vertical loading component. The upper vertical loading component is located on the side of the upper loading disk 31a that faces away from the upper output shaft 210, and the lower vertical loading component is located on the side of the lower loading disk that faces away from the lower output shaft 220.

[0050] In one embodiment of the present invention, such as Figure 3 As shown, the vertical loading assembly includes two vertical loading members, which are disposed on the frame 1. The output end of the vertical loading member is connected to the loading disk, and the two vertical loading members are symmetrically arranged with the axis of the loading disk as the axis of symmetry.

[0051] It is understandable that by setting two symmetrically arranged vertical loading members, forces parallel to the axis of the loading disk are applied to the loading disk, thereby applying axial force and bending moment to the loading disk, which then transmits the axial force and bending moment to the upper output shaft 210 or the lower output shaft 220.

[0052] The vertical loading member connected to the upper loading disk 31a is defined as the upper vertical loading member 331a, and the vertical loading member connected to the lower loading disk is defined as the lower vertical loading member.

[0053] refer to Figure 5 The two vertical loading components are electric cylinders. The distance from the vertical loading component to the axis of the loading disk is 'a'. The weight of the loading disk is 'G'. The forces acting on the two vertical loading components are F2 and F3, respectively. The formula for calculating the axial force F_axis on the upper output shaft 210 or lower output shaft 220 is F_axis = F2 + F3 - G. The formula for calculating the bending moment M on the upper output shaft 210 or lower output shaft 220 is M = F2 × a / 2 - F3 × a / 2. Where F2 = F3, an axial force is generated on the upper output shaft 210 or lower output shaft 220; if F2 ≠ F3, a bending moment is generated on the upper output shaft 210 or lower output shaft 220.

[0054] It should be noted that the forces exerted by F2 and F3 on the loading disk can be vertically upward or vertically downward.

[0055] In one embodiment of the present invention, such as Figure 2 As shown, the test equipment for the electric drive assembly of the flying car also includes a torque sensor, which is connected to the output end of the loading disk. It can be understood that the torque sensor can detect the torque at the output end of the loading disk, thereby enabling torque detection of the upper output shaft 210 or the lower output shaft 220.

[0056] refer to Figure 2 There are two torque sensors, namely the upper torque sensor 4a and the lower torque sensor 4b.

[0057] In one embodiment of the present invention, such as Figure 2 As shown, the test equipment for the electric drive assembly of the flying car also includes a turning device, which includes:

[0058] The corner body is disposed on the frame 1; the corner body is disposed on the side of the loading disk opposite to the upper output shaft 210 and / or on the side of the loading disk opposite to the lower output shaft 220.

[0059] A first connector is located on the side of the corner body facing the loading disk, and is connected to the output end of the loading disk, and is coaxially arranged; and

[0060] The second connector is disposed on the periphery of the corner body, and the extension direction of the second connector is perpendicular to the extension direction of the first connector. The second connector is connected to the torque sensor.

[0061] It is understood that by using the vertically arranged first and second connectors, the upper output shaft 210 or the lower output shaft 220 can be rotated 90° in the extension direction, thereby enabling the horizontal setting of subsequent components (such as dynamometers and torque sensors).

[0062] refer to Figure 2 There are two cornering devices: an upper cornering device 5a and a lower cornering device 5b. The upper cornering device 5a includes an upper cornering body 51a, a first upper connector (not shown in the figure), and a second upper connector 53a. The upper cornering body 51a is located on the side of the upper loading disk opposite to the upper output shaft 210. The lower cornering device 5b includes a lower cornering body, a first lower connector, and a second lower connector. The lower cornering body is located on the side of the lower loading disk opposite to the lower output shaft 220.

[0063] In another embodiment, the cornering device may be omitted, and the torque sensor and dynamometer may be directly positioned in the vertical direction of the upper output shaft 210 or the vertical direction of the lower output shaft 220.

[0064] In one embodiment of the present invention, such as Figure 2 As shown, the testing equipment for the electric drive assembly of the flying car also includes a dynamometer, which is coaxially connected to the second connector. The dynamometer is a device used to measure the power of the upper output shaft 210 or the lower output shaft 220.

[0065] refer to Figure 2 There are two dynamometers, namely the upper dynamometer 6a and the lower dynamometer 6b.

[0066] In one embodiment of the present invention, such as Figure 3 As shown, the loading disk includes a loading disk body and a docking seat. The loading disk body is connected to the horizontal loading component and the vertical loading component. The docking seat is connected to the loading disk body and is coaxially arranged. The docking seat is provided with the assembly cavity, and the cavity wall of the assembly cavity is provided with a limiting groove.

[0067] The docking seat is rotatably connected to the loading disk body, which is sleeved on the outside of the docking seat. A bearing is provided between the loading disk body and the docking seat. One end of the docking seat has the assembly cavity, and the other end is connected to the first connecting member. By engaging the limiting groove with the limiting protrusion on the peripheral wall of the upper output shaft 210 or the lower output shaft 220, a limiting connection between the docking seat and the upper output shaft 210 or the lower output shaft 220 can be achieved. The docking seat can rotate synchronously with the upper output shaft 210 and the lower output shaft 220.

[0068] The upper loading disk 31a includes an upper loading disk body 311a and an upper docking seat 312a. The upper loading disk body 311a is connected to the upper horizontal loading component 32a and the upper vertical loading component 33a. The upper docking seat 312a is connected to the upper loading disk body 311a and is coaxially arranged. The upper docking seat 312a is provided with an upper assembly cavity.

[0069] The lower loading plate includes a lower loading plate body and a lower docking seat. The lower loading plate body is connected to the lower horizontal loading component and the lower vertical loading component. The lower docking seat is connected to the lower loading plate body and is coaxially arranged. The lower docking seat is provided with a lower assembly cavity.

[0070] In one embodiment of the present invention, such as Figure 3 As shown, a support platform is provided on the periphery of the loading disk body, and the vertical loading component is connected to the support platform.

[0071] The upper loading disk body is provided with an upper support platform 313a on its periphery, and the lower loading disk body is provided with a lower docking seat on its periphery.

[0072] It is understandable that by setting up a support platform to provide an installation position for the vertical loading component, it is easier for the vertical loading component to provide vertical force.

[0073] In one embodiment of the present invention, the test equipment for the electric drive assembly of the flying car further includes a controller, which is electrically connected to the two loading devices.

[0074] This invention adapts the electric drive assembly for flying cars to be arranged in a vertical manner. When the electric drive assembly is working normally, in addition to torque output, its output shaft is also subjected to bending moment, axial force and lateral force. Therefore, when testing the electric drive assembly for flying cars with the test equipment of this invention, its actual use environment can be reproduced.

[0075] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A testing device for an electric drive assembly for a flying car, characterized in that, The electric drive assembly for the flying car includes two inseparable motors, two motor controllers, and two reducers. The upper output shaft of the electric drive assembly under test faces upward and is used to connect to the propeller, while the lower output shaft faces downward and is used to connect to the propeller. The testing equipment includes: frame; Mounting bracket, the mounting bracket being disposed on the rack, the mounting bracket being used to mount the electric drive assembly under test; and Two loading devices are located above and below the mounting bracket, respectively. The two loading devices are connected to the upper and lower output shafts of the electric drive assembly under test, respectively, to apply forces to the upper and lower output shafts to simulate the lateral force, axial force, and bending moment of the rotor on the electric drive assembly under test. The loading devices include: A loading disk is disposed on the frame and has an assembly cavity for mounting the upper output shaft or the lower output shaft. A horizontal loading assembly is provided on the frame, the output end of the horizontal loading assembly is connected to the loading disk, and the horizontal loading assembly provides a radial force to the loading disk; A vertical loading assembly is provided on the frame, and the output end of the vertical loading assembly is connected to the loading disk. The vertical loading assembly provides a force to the loading disk that is parallel to the axial direction of the loading disk.

2. The testing equipment for the electric drive assembly of a flying car as described in claim 1, characterized in that, The vertical loading assembly includes two vertical loading members, which are mounted on the frame. The output end of each vertical loading member is connected to the loading disk, and the two vertical loading members are symmetrically arranged with the axis of the loading disk as the axis of symmetry.

3. The testing equipment for the electric drive assembly of a flying car as described in claim 2, characterized in that, The vertical loading component is an electric cylinder, and the horizontal loading component is an electric cylinder.

4. The testing equipment for the electric drive assembly of a flying car as described in any one of claims 1 to 3, characterized in that, The testing equipment for the electric drive assembly of the flying car also includes a torque sensor, which is connected to the output end of the loading disk.

5. The testing equipment for the electric drive assembly of a flying car as described in claim 4, characterized in that, The testing equipment for the electric drive assembly of the flying car also includes a turning device, which comprises: A corner body is provided on the frame; the corner body is provided on the side of the loading disk opposite to the upper output shaft and / or on the side of the loading disk opposite to the lower output shaft. A first connector is located on the side of the corner body facing the loading disk, and is connected to the output end of the loading disk, and is coaxially arranged; and The second connector is disposed on the periphery of the corner body, and the extension direction of the second connector is perpendicular to the extension direction of the first connector. The second connector is connected to the torque sensor.

6. The testing equipment for the electric drive assembly of a flying car as described in claim 5, characterized in that, The testing equipment for the electric drive assembly of the flying car also includes a dynamometer, which is coaxially connected to the second connector.

7. The testing equipment for the electric drive assembly of a flying car as described in claim 1, characterized in that, The loading disk includes: The loading disk body is connected to the horizontal loading component and the vertical loading component; and A docking seat is connected to the loading disk body and is coaxially arranged; the docking seat is provided with the assembly cavity, and the cavity wall of the assembly cavity is provided with a limiting groove.

8. The testing equipment for the electric drive assembly of a flying car as described in claim 7, characterized in that, The loading disk body is provided with a support platform on its periphery, and the vertical loading component is connected to the support platform.

9. The testing equipment for the electric drive assembly of a flying car as described in claim 1, characterized in that, The test equipment for the electric drive assembly of the flying car also includes a controller, which is electrically connected to the two loading devices.

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