Electric propeller power assembly sports car test platform

Abstract

The utility model discloses an electric propeller power assembly sports car test platform, which comprises an electric trailer and a measurement and control system integrated on the electric trailer, and the measurement and control system comprises a base; the base is provided with a positioning seat and a test main arm rotatably installed on the positioning seat, the base is rotatably provided with an overturning oil cylinder used for pushing the test main arm to rotate, and a telescopic rod of the overturning oil cylinder is rotatably connected to the test main arm; an electric tilting mechanism and a test auxiliary arm rotationally mounted on the electric tilting mechanism are mounted at the end part of the test main arm, a six-component balance and a motor support mounted on the six-component balance are integrated on the test auxiliary arm, and the motor support is used for mounting an electric propeller power assembly; various flight states of the power assembly can be tested by simulating a real flight state in an outdoor scene.

Description

Technical Field

[0001] This utility model relates to the field of aircraft electric propeller power performance testing technology, and in particular to an electric propeller powertrain sports car test platform. Background Technology

[0002] The development of eVTOL (Electric Vertical Takeoff and Landing) aircraft has attracted widespread attention from aerospace companies, the automotive industry, the transportation industry, governments, the military, and academia. Potential future applications of eVTOL include urban passenger transport, regional passenger transport, freight transport, personal aircraft, and emergency medical services, among other scenarios.

[0003] During the testing phase, the eVTOL powertrain needs to be tested under simulated aircraft conditions such as climb, level flight / cruise, and the transition between climb / cruise and level flight to obtain test data for powertrain optimization. Furthermore, real-world flight simulations are required in outdoor environments to obtain test data that closely reflects actual flight conditions. Therefore, a test platform adapted to simulated flight in outdoor environments needs to be designed to meet these testing requirements. Utility Model Content

[0004] (a) Technical issues

[0005] The purpose of this invention is to provide a test platform for an electric propeller powertrain sports car, enabling the powertrain to be tested under various flight conditions in an outdoor setting, simulating real flight conditions.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An electric propeller powertrain test platform includes an electric trailer and a measurement and control system integrated on the electric trailer. The measurement and control system includes a base; a positioning seat and a test main arm rotatably mounted on the positioning seat are provided on the base; a tilting cylinder for pushing the test main arm to rotate is rotatably mounted on the base; the telescopic rod of the tilting cylinder is rotatably connected to the test main arm; an electric tilting mechanism and a test auxiliary arm rotatably mounted on the electric tilting mechanism are installed at the end of the test main arm; a six-component balance and a motor support mounted on the six-component balance are integrated on the test auxiliary arm; the motor support is used to mount the electric propeller powertrain.

[0009] Preferably, the base is equipped with a mounting bracket for supporting the test arm.

[0010] Preferably, the bottom of the test arm is provided with a mounting plate, and the edge of the mounting plate is provided with multiple limiting notches at intervals; the side wall of the positioning seat is provided with multiple connecting seats and fasteners rotatably mounted on the connecting seats, and the fasteners are rotatably inserted into the limiting notches.

[0011] Preferably, the measurement and control system further includes a test chamber mounted on the base, the test chamber integrating a measurement and control computer desk and chair, a data acquisition system, and a power analyzer; the test chamber is equipped with an air conditioner on the outside.

[0012] Preferably, the base is also provided with a hydraulic station that communicates with the tilting cylinder.

[0013] Preferably, the base is also equipped with a cooling water circulation control box.

[0014] Preferably, a plurality of rubber air springs are provided between the base and the platform of the electric trailer.

[0015] Preferably, the base is provided with a battery mounting position for integrating a power battery.

[0016] Preferably, the electric trailer is equipped with a bracket on its roof and an airspeed tube installed on top of the bracket and parallel to the direction of travel.

[0017] (III) Beneficial Effects

[0018] By integrating the measurement and control system into an electric trailer, the system can be transported to outdoor environments for testing, particularly in high-altitude, low-temperature, and high-humidity regions.

[0019] The test boom rotation adjustment is achieved by tilting the hydraulic cylinder, which facilitates switching between test and transport states. After switching to test state, the electric tilting mechanism enables the electric propeller powertrain to switch between several states, such as simulated aircraft climb, level flight cruise, and climb-cruise-level flight transition, thereby obtaining corresponding test parameters. Force and torque parameters in the X, Y, and Z directions, as well as propeller speed and other parameters, are collected by a six-component balance, corresponding to test data under different flight states. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0021] Figure 2 This is a structural schematic diagram of the transportation state of an embodiment of the present utility model;

[0022] Figure 3 This is a structural schematic diagram simulating the takeoff and climb state of an aircraft according to an embodiment of the present invention;

[0023] Figure 4 This is a structural schematic diagram simulating the transition state of an aircraft during climb, cruise, and level flight, according to an embodiment of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure simulating level flight of an aircraft in an embodiment of this utility model;

[0025] exist Figures 1 to 5 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0026] Electric propeller powertrain 100, electric trailer 1, measurement and control system 2, base 21, positioning seat 22, test main boom 23, electric tilting mechanism 24, test auxiliary boom 25, six-component balance 26, motor support 27, fixing frame 28, mounting plate 29, limit notch 210, connecting seat 211, fastener 212, test house 213, measurement and control computer desk and chair 214, data acquisition system 215, power analyzer 216, air conditioner 217, hydraulic station 218, cooling water circulation control box 219, rubber air spring 220, battery mounting position 221, tilting cylinder 222, bracket 223, air speed tube 224. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] See Figures 1-5 As shown in the figure, this utility model proposes an electric propeller powertrain test platform, specifically including an electric trailer 1 and a measurement and control system 2 integrated on the electric trailer 1. The electric trailer 1 enables the entire test platform to be transported to designated outdoor locations for outdoor testing, particularly in high-altitude, low-temperature, and high-humidity regions, providing convenient conditions for testing. The measurement and control system 2 mainly performs switching tests on the electric propeller powertrain 100 in several states, including simulated aircraft climb, level flight cruise, and climb-cruise-level flight transition states, thereby providing data support for the research and development process of the electric propeller powertrain 100.

[0029] The measurement and control system 2 includes a base 21, on which a positioning seat 22 and a test main arm 23 rotatably mounted are provided. A tilting cylinder 222 for pushing the test main arm 23 to rotate is rotatably mounted on the base 21. The telescopic rod of the tilting cylinder 222 is rotatably connected to the test main arm 23. When the test main arm 23 is pushed to the vertical position by the tilting cylinder 222, it is in the testing state. When the test main arm 23 is pulled to the tilting position by the tilting cylinder 222, it is in the transportation state. This avoids the influence of height restrictions during transportation. The tilting cylinder 222 also limits the position of the test main arm 23.

[0030] Specifically, an electric tilting mechanism 24 and a test auxiliary arm 25 rotatably mounted on the electric tilting mechanism 24 are installed at the end of the main test arm 23. The test auxiliary arm 25 integrates a six-component balance 26 and a motor support 27 mounted on the six-component balance 26. The motor support 27 is used to mount the electric propeller powertrain 100. The angle of the test auxiliary arm 25 is adjusted via the electric tilting mechanism 24, thereby adjusting the test angle of the electric propeller powertrain 100. The specific adjustment angle range is 0~90°, which allows for switching tests between several simulated aircraft states, including climb, level flight / cruise, and climb / cruise / level flight transition states. The electric tilting mechanism 24 consists of a motor, gear set, ratchet, and other components. The six-component balance 26 is a mature, durable, high-precision military-grade measuring device that can measure relevant characteristic parameters of the electric propeller powertrain 100 under various operating conditions, including forces and torques in the X, Y, and Z directions, and propeller rotation speed. The specific measurement parameters and parameter processing are all existing technologies. This embodiment only describes the structural composition. For the measurement and calculation-related content, existing technologies can be directly adopted.

[0031] In order to ensure a stable support structure after the test arm 23 is rotated to the transport state, and to further limit the test arm 23 to avoid shaking, a fixing frame 28 for supporting the test arm 23 is installed on the base 21. The fixing frame 28 is provided with a limiting groove structure for limiting the test arm 23, which precisely limits the placement of the test arm 23.

[0032] To facilitate reliable fixation of the test arm 23 after it is rotated to the testing state, a mounting plate 29 is provided at the bottom of the test arm 23. The edge of the mounting plate 29 is provided with multiple limiting notches 210 at intervals, and multiple connecting seats 211 and fasteners 212 rotatably mounted on the connecting seats 211 are installed at intervals on the side wall of the positioning seat 22. The fasteners 212 are rotatably inserted into the limiting notches 210. By rotating the fasteners 212, they are engaged into the corresponding limiting notches 210 and locked, ensuring that the mounting plate 29 on the test arm 23 is positioned on the positioning seat 22 by the connecting seats 211 and locked by the fasteners 212, so that the test arm 23 is reliably installed on the positioning seat 22.

[0033] Specifically, during the testing process, a corresponding testing space needs to be provided for the operators. The measurement and control system 2 also includes a test chamber 213 set on the base 21. The test chamber 213 integrates a measurement and control computer desk and chair 214, a data acquisition system 215, and a power analyzer 216. An air conditioner 217 is installed outside the test chamber 213. The test chamber 213 is made of a shipping container, and standard container corner fittings are used at the four corners of the top and bottom to meet the requirements for hooking and locking during hoisting and transportation. The overall dimensions are 1.9m × 2.3m × 2m. It also integrates heat insulation, sound insulation and noise reduction, and lighting functions, providing operators with a good side view environment when operating inside the test chamber 213.

[0034] Specifically, a hydraulic station 218 communicating with the tilting cylinder 222 is also provided on the base 21. The hydraulic station 218 is used to provide hydraulic power and the circulation of hydraulic oil.

[0035] Meanwhile, a cooling water circulation control box 219 is also provided on the base 21. Generally, it integrates a constant temperature water tank, circulating water pump, heat exchanger, flow meter, heater, temperature sensor, pressure sensor, display instrument, electrical components and pipe valves through an aluminum alloy frame; thereby achieving heat exchange to maintain the cooling water temperature, which is convenient for heat dissipation of the electric propeller power assembly 100 during the test.

[0036] Specifically, in order to ensure that the entire measurement and control system 2 has a good shock absorption effect during transportation and avoid damage caused by vibration, multiple rubber air springs 220 are provided between the base 21 and the platform of the electric trailer 1 for guiding and fixing the entire test bench, so as to ensure that the test bench does not undergo serious displacement due to road bumps during transportation and testing.

[0037] Meanwhile, a battery mounting position 221 is provided on the base 21. The battery mounting position 221 is used to integrate the power battery. Generally, the power battery can be replaced by the user.

[0038] Meanwhile, to facilitate the measurement of simulated aircraft speed, the corresponding power parameters and attitude can be corrected by measuring the speed under various simulated aircraft conditions, thereby forming a comprehensive analysis. Therefore, a bracket 223 and an airspeed tube 224, mounted on top of the electric trailer 1 and parallel to the direction of travel, are installed on the roof of the trailer 1. The airspeed tube detects speed parameters under simulated flight conditions, allowing for comprehensive analysis by combining parameters such as force, torque, and propeller speed, thus improving the reliability and authenticity of the test data.

[0039] In this embodiment, the signal transmission and data processing involved in the testing process all adopt existing technologies. This embodiment mainly describes and explains the integrated structure to achieve testing of multiple simulated flight modes outdoors.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A test platform for an electric propeller-driven sports car, characterized in that: The system includes an electric trailer (1) and a measurement and control system (2) integrated on the electric trailer (1), the measurement and control system (2) including a base (21); The base (21) is provided with a positioning seat (22) and a test main arm (23) rotatably mounted on the positioning seat (22). A tilting cylinder (222) for pushing the test main arm (23) to rotate is rotatably mounted on the base (21). The telescopic rod of the tilting cylinder (222) is rotatably connected to the test main arm (23). The end of the test main arm (23) is equipped with an electric tilting mechanism (24) and a test auxiliary arm (25) rotatably mounted on the electric tilting mechanism (24). The test auxiliary arm (25) integrates a six-component balance (26) and a motor support (27) mounted on the six-component balance (26). The motor support (27) is used to mount an electric propeller powertrain (100).

2. The electric propeller powertrain test platform for sports cars according to claim 1, characterized in that: The base (21) is equipped with a mounting bracket (28) for supporting the test arm (23).

3. The electric propeller powertrain test platform for sports cars according to claim 2, characterized in that: The bottom of the test main arm (23) is provided with a mounting plate (29), and the edge of the mounting plate (29) is provided with multiple limiting notches (210) at intervals. The positioning seat (22) has multiple connecting seats (211) spaced apart on its side wall, and fasteners (212) rotatably mounted on the connecting seats (211). The fasteners (212) are rotatably inserted into the limiting notch (210).

4. A test platform for an electric propeller powertrain sports car according to any one of claims 1-3, characterized in that: The measurement and control system (2) also includes a test chamber (213) set on the base (21), and the test chamber (213) integrates a measurement and control computer desk and chair (214), a data acquisition system (215) and a power analyzer (216). The test chamber (213) is equipped with an air conditioner (217) on the outside.

5. The electric propeller powertrain test platform for sports cars according to claim 4, characterized in that: The base (21) is also provided with a hydraulic station (218) that is connected to the tilting cylinder (222).

6. The electric propeller powertrain test platform for sports cars according to claim 5, characterized in that: The base (21) is also equipped with a cooling water circulation control box (219).

7. The electric propeller powertrain test platform for sports cars according to claim 4, characterized in that: Multiple rubber air springs (220) are provided between the base (21) and the platform of the electric trailer (1).

8. The electric propeller powertrain test platform for sports cars according to claim 4, characterized in that: The base (21) is provided with a battery mounting position (221), which is used to integrate a power battery.

9. The electric propeller powertrain test platform for sports cars according to claim 1, characterized in that: The electric trailer (1) has a bracket (223) mounted on its roof and an airspeed tube (224) mounted on top of the bracket (223) and parallel to the direction of travel.

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