A flexible stent testing device

Abstract

The utility model relates to a kind of flexible support testing device, it is installed on the load cable of flexible photovoltaic support, for the vibration or fatigue test of flexible photovoltaic support, including installation platform, loading assembly etc., installation platform is vertically fixed and installed on two the load cable, for the whole test device is installed to flexible support;Loading assembly is installed in installation platform end, the loading assembly includes driving part, rotating executor, rotating executor is rotated by the driving part and is transferred to flexible support vibration, rotating executor is arranged as eccentric wheel, the eccentric wheel is fixedly installed in the output end of driving part, whole test device structure is simple, test result is directly visible, convenient to use, and test cost is lower.

Description

Technical Field

[0001] This utility model relates to a flexible support testing device, belonging to the field of photovoltaic support testing technology. Background Technology

[0002] In the process of developing photovoltaic resources, some places have good solar resources and are suitable for building photovoltaic power generation projects, but the terrain slope is large and there is not enough land in conventional terrain, making it difficult to adapt to fixed photovoltaic brackets. Therefore, flexible brackets have emerged.

[0003] Flexible supports are large-span photovoltaic module support structures that are fixed at both ends and formed by prestressed flexible cable structures. Compared with traditional fixed supports, flexible supports install photovoltaic panels on rows of steel cables, with the two ends of the steel cables connected by rigid supports. They can span complex terrains such as gullies, steep slopes, and streams, effectively improving land utilization. In areas with the same land area but a larger span, more photovoltaic modules can be installed on flexible supports. They have advantages such as large span, high clearance, and good crack resistance, and provide a large space for cultivation at the bottom, which meets the needs of agricultural-photovoltaic integration.

[0004] Since the photovoltaic modules of the flexible support are fixed on the prestressed flexible cable, compared with the fixed support or tracking support of the rigid mechanism, its load capacity, wind resistance and service life need to be rigorously tested after the design is completed. At present, most of them are tested by wind tunnel test, but the cost is too high.

[0005] To address the aforementioned issues, this application proposes a flexible support testing device. Utility Model Content

[0006] The present invention aims to overcome the shortcomings of existing technologies by providing a flexible support testing device. The overall testing device has a simple structure, is easy to use, and has a low testing cost, which can effectively solve the problems in the background technology.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A flexible support testing device, installed on the load-bearing cable of a flexible photovoltaic support, is used to perform vibration or fatigue tests on the flexible photovoltaic support. Its features include:

[0009] The mounting platform is vertically fixed on the two load-bearing cables and is used to mount the overall testing device onto the flexible support.

[0010] A loading component is installed at the end of the installation platform. The loading component includes a driving component and a rotating actuator. The driving component drives the rotating actuator to rotate and transmits vibration to the flexible support.

[0011] The rotating actuator is configured as an eccentric wheel, which is fixedly installed at the output end of the driving component.

[0012] As a further improvement of this utility model, end posts are provided at both ends of the load-bearing cable, the load-bearing cable is anchored on the end posts, and inclined stay cables are provided on the end posts.

[0013] As a further improvement of this utility model, the installation platform is configured as a rectangular plate structure, the installation platform is fixedly installed on the load-bearing cable by U-bolts, and the driving component is fixedly installed on the top of the rectangular plate.

[0014] As a further improvement of this utility model, the installation platform is composed of two angle steels, and an installation plate is fixedly connected to the top of the angle steels. The driving component is fixedly installed on the top of the installation plate.

[0015] As a further improvement of this utility model, a limiting plate is provided at the top of the driving component, the limiting plate is arranged in a Z-shape, and a mounting plate is fixedly connected to the bottom of the limiting plate.

[0016] As a further improvement of this utility model, the driving component is configured as a drive motor, and the output end of the drive motor is located away from the load-bearing cable.

[0017] As a further improvement of this utility model, the eccentric wheel is fixedly installed at the output end of the drive motor.

[0018] As a further improvement of this utility model, a reduction gearbox is also provided between the drive motor and the eccentric wheel, with the input end of the reduction gearbox connected to the drive motor and the output end connected to the eccentric wheel.

[0019] The beneficial effects of this utility model are as follows: A flexible support testing device, in which a driving component drives a rotating actuator to rotate and generate vibration, the vibration is transmitted to the load-bearing cable through the mounting platform, and different frequencies of vibration are generated by changing the speed of the driving motor to conduct vibration testing on the flexible support. Compared with wind tunnel testing, the vibration of the flexible support can be observed more intuitively during the test. Fatigue testing of the flexible support is carried out by loading vibration for a long time. The overall testing device has a simple structure, the test results are intuitive and visible, it is easy to use, and the testing cost is low. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0021] Figure 1 This is a structural diagram of a flexible support testing device according to this utility model.

[0022] Figure 2This is an enlarged structural diagram of part A of a flexible support testing device according to this utility model.

[0023] Figure 3 This is a structural diagram of another embodiment of the flexible support testing device of this utility model.

[0024] The following are the labels in the diagram: 1. Load-bearing cable; 2. Installation platform; 3. Drive component; 4. Rotation actuator; 5. Gearbox; 6. Mounting plate; 7. Limiting plate; 8. U-bolt; 9. End column; 10. Stay cable; 11. Intermediate column; 12. Horizontal connecting rod; 13. Diagonal connecting rod. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] To make the technical means, creative features, and achieved objectives and effects of this utility model easy to understand, it should be noted in the description of this utility model that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described below in conjunction with specific embodiments.

[0027] Example

[0028] like Figures 1-3 As shown, a flexible support testing device is installed on the load-bearing cable 1 of a flexible photovoltaic support, used for vibration or fatigue testing of the flexible photovoltaic support, including:

[0029] The mounting platform 2 is vertically fixed on the two load-bearing cables 1 and is used to install the overall testing device onto the flexible support.

[0030] A loading component is installed at the end of the mounting platform 2. The loading component includes a driving component 3 and a rotating actuator 4. The driving component 3 drives the rotating actuator 4 to rotate, transmitting vibration to the flexible support.

[0031] The rotating actuator 4 is configured as an eccentric wheel, which is fixedly installed at the output end of the drive unit 3. Alternatively, the rotating actuator 4 can also be configured as a swing rod, with one end of the swing rod fixedly installed at the output end of the drive unit 3.

[0032] In some alternative embodiments, the load-bearing cable 1 is provided with end posts 9 at both ends, the load-bearing cable 1 is anchored on the end posts 9, and the end posts 9 are provided with inclined stay cables 10.

[0033] Furthermore, such as Figure 3 As shown, intermediate columns 11 are also provided between the end columns 9. The top of the intermediate columns 11 is fixedly connected to the load-bearing cable 1 by the horizontal connecting rod 12. Adjacent intermediate columns 11 are fixedly connected by the diagonal connecting rod 13. The intermediate columns 11, the horizontal connecting rod 12 and the diagonal connecting rod 13 connect multiple rows of flexible supports together. During testing, vibration or fatigue tests can be performed on multiple rows of flexible supports, reducing testing costs.

[0034] In some alternative embodiments, the mounting platform 2 is configured as a rectangular plate structure. The mounting platform 2 is fixedly mounted on the load-bearing cable 1 by U-bolts 8. The driving component 3 is fixedly mounted on the top of the rectangular plate. For example, a through hole is opened on the rectangular plate for the U-bolt 8 to pass through. The U-bolt 8 is opened downward to hold the load-bearing cable 1, and the bottom is locked by a nut. In addition, the U-bolt 8 can also be replaced by a wire rope clamp.

[0035] In some alternative embodiments, the mounting platform 2 is composed of two angle steels, with a mounting plate 6 fixedly connected to the top of the angle steels, and the driving component 3 is fixedly mounted on the top of the mounting plate 6.

[0036] Preferably, a limiting plate 7 is provided on the top of the driving component 3. The limiting plate 7 is arranged in a Z-shape. The bottom of the limiting plate 7 is fixedly connected to a mounting plate or a rectangular plate. The limiting plate 7 further limits the driving component 3 to improve its reliability during vibration testing.

[0037] In some alternative embodiments, the drive element 3 is configured as a drive motor, with the output end of the drive motor located away from the load-bearing cable 1.

[0038] Preferably, the drive motor is a variable frequency speed control motor with variable frequency speed control function. The frequency converter is installed near the flexible support, and the speed of the drive motor is adjusted by the frequency converter to simulate the vibration of the flexible support under different working conditions. Fatigue test can be carried out during long-term operation.

[0039] The rotation of the drive motor drives the eccentric wheel to rotate, generating vibration. The vibration is transmitted to the load-bearing cable 1 through the mounting platform 2. By changing the speed of the drive motor, vibrations of different frequencies are generated to conduct vibration tests on the flexible support. Fatigue tests on the flexible support are conducted through long-term loaded vibration.

[0040] In addition, during testing, in order to obtain test data more accurately, corresponding sensors can be installed on the flexible support, such as accelerometers, oscilloscopes, pressure sensors, etc., which are commonly used in existing technologies.

[0041] In some alternative embodiments, the eccentric wheel is fixedly mounted to the output end of the drive motor.

[0042] Furthermore, a reduction gearbox 5 is provided between the drive motor and the eccentric wheel. The input end of the reduction gearbox 5 is connected to the drive motor, and the output end is connected to the eccentric wheel. The reduction gearbox 5 is used to reduce the speed to increase the torque. The reduction gearbox 5 can be a common gear reduction gearbox in the prior art.

[0043] In addition, the driving component 3 can be set as a worm gear reducer, and the rotating actuator 4 can be set as a swing rod. The end of the swing rod is fixedly installed at the output end of the worm gear reducer. The worm gear reducer drives the swing rod to rotate to different positions to generate vibration.

[0044] When testing the flexible support, the loading component is first installed on the mounting platform 2, and the mounting platform 2 is fixed to the two load-bearing cables 1 by U-bolts 8. The drive component 3 is started, and the drive component 3 drives the rotating actuator 4 to rotate and generate vibration. The vibration is transmitted to the load-bearing cables 1 through the mounting platform 2. By changing the speed of the drive motor, vibrations of different frequencies are generated to conduct vibration tests on the flexible support. Compared with wind tunnel testing, the vibration of the flexible support can be observed more intuitively during the test. The fatigue test of the flexible support is carried out by loading vibration for a long time. The overall testing device has a simple structure, the test results are intuitive and visible, it is easy to use, and the testing cost is low.

[0045] The above are preferred embodiments of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope thereof. All such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible support testing device, installed on the load-bearing cable of a flexible photovoltaic support, used for vibration or fatigue testing of the flexible photovoltaic support, characterized in that, include: The mounting platform is vertically fixed on the two load-bearing cables and is used to mount the overall testing device onto the flexible support. A loading component is installed at the end of the installation platform. The loading component includes a driving component and a rotating actuator. The driving component drives the rotating actuator to rotate and transmits vibration to the flexible support. The rotating actuator is configured as an eccentric wheel, which is fixedly installed at the output end of the driving component.

2. The flexible support testing device according to claim 1, characterized in that: The load-bearing cable is provided with end posts at both ends, and the load-bearing cable is anchored on the end posts. An inclined stay cable is provided on the end posts.

3. The flexible support testing device according to claim 1, characterized in that: The installation platform is configured as a rectangular plate structure, and the installation platform is fixedly installed on the load-bearing cable by U-bolts. The driving component is fixedly installed on the top of the rectangular plate.

4. The flexible support testing device according to claim 1, characterized in that: The installation platform is composed of two angle steels, with an installation plate fixedly connected to the top of the angle steels, and the driving component is fixedly installed on the top of the installation plate.

5. A flexible support testing device according to claim 3 or 4, characterized in that: The top of the drive component is provided with a limiting plate, which is arranged in a Z-shape, and the bottom of the limiting plate is fixedly connected to a mounting plate or a rectangular plate.

6. The flexible support testing device according to claim 1, characterized in that: The driving component is a drive motor, and the output end of the drive motor is located away from the load-bearing cable.

7. The flexible support testing device according to claim 1, characterized in that: The eccentric wheel is fixedly installed at the output end of the drive motor.

8. A flexible support testing device according to claim 6, characterized in that: A reduction gearbox is also provided between the drive motor and the eccentric wheel. The input end of the reduction gearbox is connected to the drive motor, and the output end is connected to the eccentric wheel.

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