A solar panel drive mechanism conductive ring motion working condition simulation test tool

Abstract

The application discloses a solar panel driving mechanism conductive ring motion working condition simulation test tool, which comprises a test table composed of a box body, a fixed disc, a height adjusting rod, a driving motor and a rotating drum; a portal is composed of a first portal and a second portal, and a torque sensor is assembled and connected between the first portal and the second portal; the test tool further comprises an external driving module, a vacuum high-low temperature box and a vacuum tank; the test tool can be tested in an actual working condition environment, realizes one-way rotation and forward and reverse reciprocating swing running of the solar panel conductive ring, can feed back test data in real time during the test process, provides a reference for subsequent installation, and solves the fault rate existing in the installation use. The test tool can realize screening test of one or more products, is suitable for batch test of equipment, improves test efficiency, can work in a vacuum high-low temperature environment, and can effectively simulate a vacuum environment through cabin connection of a driving cable and a control cable.

Description

Technical Field

[0001] This application relates to the field of solar panel drive mechanism testing technology, and in particular to a simulation test fixture for the motion conditions of the conductive ring of a solar panel drive mechanism. Background Technology

[0002] Solar panels, also known as solar arrays, solar wings, or solar cell arrays, are the core devices in spacecraft that convert solar energy into electrical energy. They are widely used in the energy supply of satellites, spacecraft, space stations, and other spacecraft. In spacecraft, solar panels are typically folded and stored outside the cabin, and then deployed after entering orbit to increase the area exposed to sunlight, providing ample power to the spacecraft.

[0003] The conductive ring of the solar panel drive mechanism undergoes unidirectional rotation and reciprocating oscillation during operation. Therefore, testing the conductive ring requires testing the transmission signals during both unidirectional rotation and reciprocating oscillation processes separately. Currently, testing can only be performed after assembly into a finished product, resulting in low assembly efficiency and high production costs. Summary of the Invention

[0004] To address the aforementioned problems, this application aims to provide a simulation test fixture for the motion conditions of conductive rings in a solar panel drive mechanism. This fixture can simultaneously simulate two motion modes: unidirectional and reciprocating oscillation. Combined with external drive control equipment, it enables multiple conductive rings to run-in under different speeds and oscillation modes. This allows for testing of the signal transmission characteristics of the conductive rings during unidirectional rotation and reciprocating oscillation, thereby improving assembly efficiency, reducing production costs, and lowering the failure rate during actual use.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A simulation test fixture for the motion condition of the conductive ring of a solar panel drive mechanism, comprising: A test bench includes a housing, a fixed plate is provided on the top of the housing, and the fixed plate is connected to the housing through height adjustment rods provided at the corners; drive motors are evenly distributed inside the housing, and a rotating cylinder connected to each drive motor is provided on the upper surface of the housing, with the top of the rotating cylinder embedded in a through hole opened in the fixed plate; The test bench also includes a first gantry and a second gantry. The first gantry is connected to the upper end face of the inner ring of the conductive ring to be tested, and the lower end face of the outer ring of the conductive ring to be tested is connected to the top of the rotating drum. The second gantry is connected to the fixed plate and located outside the first gantry. A torque sensor is assembled between the first gantry and the second gantry. The peripheral drive module is electrically connected to the drive motor and torque sensor via a shielded wire; the test bench is set in a vacuum high and low temperature chamber, and the peripheral drive module is set in the vacuum chamber.

[0006] Preferably, both the first gantry and the second gantry are composed of a top plate and vertical rods installed on both sides below the top plate. The first gantry is connected to the upper end face of the inner ring of the conductive ring to be tested through the vertical rods, and the second gantry is connected to the fixed plate through the vertical rods. The torque sensor is installed between the top plates of the first gantry and the second gantry.

[0007] Preferably, the vertical rod is provided with bidirectional threads at both ends, and is synchronously connected to the top plate, the upper end face of the inner ring of the conductive ring to be tested, and the fixing plate through the bidirectional threads.

[0008] Preferably, the rotating drum has weight-reducing strip holes on its side wall.

[0009] The beneficial effects of this application are: 1. This testing fixture can simulate the actual motion of the conductive ring in the solar panel drive mechanism, enabling simulation of both unidirectional rotation and reciprocating oscillation. This allows for testing of the signal transmission characteristics during these processes, improving assembly efficiency, reducing production costs, and lowering the failure rate in actual use. Furthermore, real-time test data feedback provides a reference for subsequent installations, effectively addressing current failure rates encountered during installation.

[0010] 2. This testing fixture can simulate the running-in of multiple conductive rings at different speeds and oscillation modes, enabling batch testing and improving testing efficiency.

[0011] 3. The peripheral drive and control equipment of this test fixture is placed outside the vacuum tank and connected through the tank via drive cables and control cables, which can effectively simulate the vacuum environment of space. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the test bench for this application.

[0013] Figure 2 This is a plan view of the fixed disk structure of this application.

[0014] Figure 3 This is an enlarged view of the structure of the first and second gantry frames in this application.

[0015] Figure 4 This is an assembly drawing showing the drive motor, rotating drum, conductive ring under test, and first gantry of this application.

[0016] Figure 5 This is an overall diagram of the test fixture for this application.

[0017] In the diagram: 1-box body; 2-fixed plate; 2a-through hole; 3-height adjustment rod; 4-rotating drum; 4a-weight reduction strip hole; 5-drive motor; 61-first gantry; 62-second gantry; 6a-top plate; 6b-vertical rod; 7-torque sensor; 8-conductive ring to be tested. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] See attached document Figures 1-5 The above describes a simulation test fixture for the motion of a conductive ring in a solar panel drive mechanism, comprising a test bench, an external drive module, a vacuum high and low temperature chamber, and a vacuum container. Figure 1 As shown, the test bench includes a housing 1, with a fixed plate 2 positioned above the housing 1. The fixed plate 2 is connected to the housing 1 via height adjustment rods 3 located at its corners. Drive motors 5 are evenly distributed inside the housing 1. A rotating cylinder 4, connected to each drive motor 5, is positioned on the upper surface of the housing 1. The top of the rotating cylinder 4 is embedded in a through hole 2a in the fixed plate 2. The top plate of the housing 1 can be opened to accommodate the drive motors 5 that provide testing power. The rotating cylinder 4, connected to the main shaft of the drive motor 5, is positioned above the housing 1. The height adjustment rods 3 adjust the distance between the fixed plate 2 and the surface of the housing 1, allowing the top of the rotating cylinder 4 to be embedded in the through hole 2a of the fixed plate 2. The height adjustment rod 3 has an external thread at its top, and nuts are fitted on both the upper and lower sides of the fixed plate 2. These nuts are used to adjust and lock the height of the fixed plate 2.

[0020] like Figure 1 , 5 As shown, the test bench also includes a first gantry 61 and a second gantry 62. The first gantry 61 is connected to the upper end face of the inner ring of the conductive ring 8 to be tested, and the lower end face of the outer ring of the conductive ring 8 to be tested is connected to the top of the rotating cylinder 4. The second gantry 62 is connected to the fixed plate 2 and is located around the first gantry 61. The first gantry 61 and the second gantry 62 are arranged in an inner and outer ring manner (e.g., Figure 1 As shown, a torque sensor 7 is mounted between the first gantry 61 and the second gantry 62 at the same position of the rotating drum 4. During the test, the second gantry 62 fixes the torque sensor 7 through the fixing plate 2, and drives the inner and outer rings of the conductive ring 8 under test to rotate unidirectionally and swing in opposite directions through the drive motor 5. At the same time, the rotation and swing forces are transmitted to the torque sensor 7 through the first gantry 61, and the data feedback is achieved through the torque sensor 7 to realize the simulation test.

[0021] The drive motor 5 can rotate continuously 360° in both directions and can be driven by angular yaw. The yaw angle and yaw frequency are settable, and the output torque is not less than 1.5Nm. The drive motor 5 is preferably a custom-made frameless motor, which can operate in vacuum high and low temperature environments, has a large output torque, and uses a rotary transformer for motor feedback control, resulting in high control accuracy. All environmental indicators can meet the requirements of high and low temperature vacuum. The motor outputs a continuous torque of 3Nm (the specification requirement is 1.5Nm). One drive motor 5 drives one rotating drum 4. Crossed roller bearings are preferred, which can withstand loads in all directions. The shaft rotational inertia is small, which can ensure a high yaw frequency requirement and generate very little heat under rated load.

[0022] The peripheral driver is electrically connected to the drive motor 5 and torque sensor 7 via a shielded cable. It provides power to the drive motor 5 and displays the test data from the torque sensor 7 in real time on a monitor. The peripheral driver module has an input voltage of AC 240V and supports multiple communication protocols, such as RS232 bus for communicating with a host computer to transmit test data.

[0023] To simulate a vacuum environment, such as Figure 5 As shown, the test bench is set in the vacuum high and low temperature chamber, and the peripheral drive module is located in the vacuum tank, so that the test is carried out in a vacuum environment. In addition, the vacuum high and low temperature chamber can also be temperature adjusted (such as the actual temperature adjustment range of -40℃ to +80℃) to simulate the high and low temperature conditions in the actual application environment.

[0024] like Figure 3 As shown, specifically, both the first gantry 61 and the second gantry 62 are composed of a top plate 6a and vertical rods 6b arranged on both sides below the nail plate 6a. The first gantry 61 is connected to the upper end face of the inner ring of the conductive ring 8 to be tested through the vertical rods 6b, and the second gantry 62 is connected to the fixed disk 2 through the vertical rods 6b. The torque sensor 7 is installed between the top plates 6a of the first gantry 61 and the second gantry 62. Connection holes for connecting the vertical rods 6b and the outer ring of the conductive ring 8 to be tested are provided on the top of the rotating drum 4 and the fixed disk 2, and a connection hole for connecting the torque sensor 7 is provided on the top plate 6a, facilitating the assembly and connection between the gantry, the torque sensor 7, the conductive ring 8 to be tested, and the rotating drum 4. By selecting vertical rods 6b of different lengths, different specifications of testing equipment (torque sensor 7) can be adapted, improving the applicability of this testing fixture.

[0025] To facilitate the assembly of the gantry and torque sensor 7, and the adjustment and assembly for testing equipment of different specifications, preferably, such as Figure 3As shown, the vertical rod 6b has bidirectional threads at both ends, which are synchronously connected to the top plate 6a, the upper end face of the inner ring of the conductive ring 8 to be tested, and the fixed plate 2 through the bidirectional threads. The rotating cylinder 4 can be connected to the bottom end face of the outer ring of the conductive ring 8 from below using its flange. After the first gantry 61 and the second gantry 62 are pre-installed on the upper end face of the inner ring of the conductive ring 8 to be tested and the fixed plate 2, the torque sensor 7 is placed between the first gantry 61 and the second gantry 62. By rotating the vertical rods 6b on both sides of the first gantry 61 and the second gantry 62 synchronously, the top plate 6a of the first gantry 61 and the second gantry 62 can be adjusted up and down to achieve the connection and assembly with the torque sensor 7. At the same time, the adjustment of the vertical rods 6b can be adapted to the assembly of conductive rings 8 of different specifications. Furthermore, it is preferable to put nuts on the bidirectional threads to lock the vertical rod 6b between the top plate 6a, the top end of the inner ring of the conductive ring 8 to be tested, and the fixed plate 2.

[0026] To reduce the rotational inertia of the rotating drum 4, such as Figure 1 As shown, multiple weight-reducing grooves 4a are provided on the side wall of the rotating drum 4. These weight-reducing grooves 4a reduce the weight and rotational inertia of each rotating drum 4, thereby improving the accuracy of the test data.

[0027] The principle of this application is as follows: During the test operation, the conductive ring 8 to be tested is first assembled on the top of the rotating drum 4. Then, the torque sensor 7 is assembled through the first gantry 61 and the second gantry 62. Then, the test bench is installed in a vacuum high and low temperature chamber to simulate the high and low temperature state of the actual application environment of the conductive ring. The external drive module is set in the vacuum chamber to simulate the vacuum environment. The external drive module provides power to the drive motor 5, which acts on the conductive ring 8 to be tested through the rotating drum 4 and is transmitted to the torque sensor 7. The torque sensor 7 displays the test data on the display in real time.

[0028] This application realizes the simulation of two motion conditions of the conductive ring of the solar panel: unidirectional rotation and reciprocating swing running-in. It can then test the transmission signals during the unidirectional rotation and reciprocating swing of the conductive ring, solving the problems of low testing efficiency and high production cost that exist in current testing after the support is assembled into a finished product. Moreover, it can realize the running-in of multiple conductive rings at different speeds and swing modes through external drive control equipment, thereby improving assembly efficiency, reducing production costs, and reducing the failure rate in actual use.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope of protection, and all such changes and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A simulation test fixture for the motion conditions of a conductive ring in a solar panel drive mechanism, characterized in that, include: Test bench, peripheral driver module, vacuum high and low temperature chamber and vacuum tank; The test bench includes a housing, a fixed plate is provided on the top of the housing, and the fixed plate is connected to the housing through a height adjustment rod provided at the corner; drive motors are evenly distributed inside the housing, and a rotating cylinder connected to each drive motor is provided on the upper end face of the housing, and the top of the rotating cylinder is embedded in a through hole opened in the fixed plate; The test bench also includes a first gantry and a second gantry. The first gantry is connected to the upper end face of the inner ring of the conductive ring to be tested, and the lower end face of the outer ring of the conductive ring to be tested is connected to the top of the rotating drum. The second gantry is connected to the fixed plate and located outside the first gantry. A torque sensor is assembled between the first gantry and the second gantry. The peripheral drive module is electrically connected to the drive motor and torque sensor via a shielded wire; the test bench is set in the vacuum high and low temperature chamber, and the peripheral drive module is set in the vacuum tank.

2. The testing fixture according to claim 1, characterized in that: Both the first gantry and the second gantry are composed of a top plate and vertical bars installed on both sides below the top plate. The first gantry is connected to the upper end face of the inner ring of the conductive ring to be tested through the vertical bars, and the second gantry is connected to the fixed plate through the vertical bars. The torque sensor is installed between the top plates of the first gantry and the second gantry.

3. The testing fixture according to claim 2, characterized in that: The vertical rod is provided with bidirectional threads at both ends, and is synchronously connected to the top plate, the upper end face of the inner ring of the conductive ring to be tested, and the fixed plate through the bidirectional threads.

4. The testing fixture according to claim 1, characterized in that: The rotating drum has weight-reducing strip holes on its side wall.

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