Fan blade balancing test device

Abstract

The utility model relates to fan blade balance test technical field, and disclose fan blade balance test device, including test mechanism body and set up at its surface fixed turntable, still include: set up at test mechanism body both sides electric push rod, the output shaft of electric push rod is provided with the connecting shell, the utility model discloses the setting of blocking shell can effectively prevent the situation that the surrounding wind blows to fixed turnplate, thereby reduced the interference of external factors, improved test accuracy, under the action of support block, can guide and rectification to the wind of entering blocking shell, make the wind evenly distribute around the fan blade, reduced the situation of airflow turbulence, under the action of quick -release mechanism and limiting mechanism, conveniently dismounting and limiting blocking shell and support block, thereby effectively reduced the operation time and labor intensity of staff, improved the dismounting efficiency, solved the problem that the existing device is influenced by external factors when using is bigger and is inconvenient to dismount.

Description

Technical Field

[0001] This utility model relates to the field of fan blade balance testing technology, specifically to a fan blade balance testing device. Background Technology

[0002] The evolution of wind turbine blades is closely intertwined with the progress of industrial technology. Innovations in their design, materials, and manufacturing processes are constantly pushing performance limits. As a core tool to ensure their efficient and stable operation, the blade balancing test device has also achieved a leapfrog development from mechanical to intelligent with technological upgrades.

[0003] However, some existing testing devices are used in open environments where the surrounding airflow directly impacts the fan blades, interfering with the test. Some devices also lack structures to protect themselves, which reduces the accuracy of the test and requires repeated testing, greatly increasing the time and manpower costs of the test. Utility Model Content

[0004] The purpose of this invention is to provide a fan blade balance testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fan blade balance testing device, comprising a testing mechanism body and a fixed turntable disposed on its surface, and further comprising:

[0006] The electric push rods are set on both sides of the test mechanism body. The output shaft of the electric push rod is provided with a connecting shell. One end of the connecting shell is fixedly connected to a blocking shell that blocks the surrounding wind by its own shape. The bottom of the blocking shell is fixed with a support block that guides the airflow by its own shape.

[0007] A quick-release mechanism is provided in the inner cavity of the connecting shell to disassemble the connecting shell, the blocking shell, and the support block. The inner cavity of the quick-release mechanism is provided with a limit mechanism.

[0008] Preferably, the quick-release mechanism includes a sliding groove formed in the inner wall of the connecting shell, a connecting column rotatably connected to the inner wall of the connecting shell, and a fixing block fixedly connected to the surface of the connecting column.

[0009] Preferably, the limiting mechanism includes a mounting groove formed on the surface of the connecting column, a spring fixedly connected to the inner wall of the mounting groove, and a limiting block fixedly connected to one end of the spring.

[0010] Preferably, the number of support blocks is several, and they are arranged in a circular array with the bottom center of the blocking shell as the center.

[0011] Preferably, the limiting block has a hemispherical structure design.

[0012] Preferably, the barrier shell is designed as a hollow cylindrical structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the design of the baffle shell, effectively prevents surrounding wind from blowing towards the fixed turntable, thereby reducing interference from external factors and improving testing accuracy. With the support block, the wind entering the baffle shell is guided and rectified, ensuring even distribution around the fan blades and reducing airflow turbulence. This provides a more ideal airflow environment for testing. The quick-release and limiting mechanisms facilitate the disassembly and limiting of the baffle shell and support block, effectively reducing operator time and labor intensity, ensuring accuracy and safety during disassembly, and improving disassembly efficiency. This solves the problem of existing devices being significantly affected by external factors and inconvenient to disassemble. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0017] Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the present invention;

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Test mechanism body; 2. Electric push rod; 3. Connecting shell; 4. Quick release mechanism; 41. Sliding groove; 42. Connecting column; 43. Fixing block; 5. Limiting mechanism; 51. Mounting groove; 52. Spring; 53. Limiting block; 6. Blocking shell; 7. Support block; 8. Fixed turntable. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4As shown, the fan blade balance testing device includes a testing mechanism body 1, which consists of a control panel and support legs for easy operation. A fixed turntable 8 is mounted on the surface of the testing mechanism body 1 for mounting the fan, facilitating balance testing. Electric push rods 2 are mounted on both sides of the testing mechanism body 1. A connecting shell 3 is mounted on the output shaft of each electric push rod 2. A blocking shell 6 is fixedly connected to one end of the connecting shell 3. The blocking shell 6 is a hollow cylindrical structure and works in conjunction with the fixed turntable 8. Support blocks 7 are fixed to the bottom of the blocking shell 6. Several support blocks 7 are arranged in a circular array around the bottom center of the blocking shell 6. The support blocks 7 are inclined, with their bottoms in contact with the surface of the testing mechanism body 1. Under this effect, when the operator performs the test, the blocking shell 6 effectively reduces the amount of surrounding wind blowing towards the fixed turntable 8, thereby reducing external interference and improving the test performance. The accuracy and reliability of the device are ensured, and the specially shaped support block 7 can guide and rectify the airflow entering the baffle shell 6, so that the airflow is evenly distributed around the fan blades, reducing airflow turbulence and providing a more ideal airflow environment for testing. This reduces the impact of airflow on the fan blades, allowing the test results to more accurately reflect the condition of the fan blades themselves. Furthermore, under the action of the electric push rod 2, the positions of the baffle shell 6 and the support block 7 can be moved, facilitating the installation or removal of the fan by the staff, thus improving the flexibility of the device. The inner cavity of the connecting shell 3 is equipped with a quick-release mechanism 4, and the inner cavity of the quick-release mechanism 4 is equipped with a limit mechanism 5. The quick-release mechanism 4 and the limit mechanism 5 work together. Under this action, when the staff faces the need to replace the baffle shell 6 with a larger diameter to adapt to the balance test of the larger fan blades, the staff can operate the quick-release mechanism 4 to disconnect the connection between the connecting shell 3 and the electric push rod 2, thereby shortening the disassembly time, improving work efficiency, and reducing the labor intensity of the staff.

[0022] The quick-release mechanism 4 includes a sliding groove 41 on the inner wall of the connecting shell 3. A connecting column 42 is rotatably connected to the inner wall of the connecting shell 3. The bottom of the connecting column 42 is rotatably connected to the output shaft of the electric push rod 2. A fixing block 43 is fixedly connected to the surface of the connecting column 42. Under this action, when the operator needs to disassemble the connecting shell 3 and the blocking shell 6, the fixing block 43 is rotated 180 degrees to align with the position of the sliding groove 41. Then, the connecting shell 3 is moved upward, which releases the fixing effect on the connecting shell 3, the blocking shell 6, and the support block 7. This reduces the operator's operation time and labor intensity, ensures the accuracy and safety of the disassembly process, and improves the disassembly efficiency.

[0023] The limiting mechanism 5 includes a mounting groove 51 formed on the surface of the connecting column 42. A spring 52 is fixedly connected to the inner wall of the mounting groove 51. One end of the spring 52 is fixedly connected to a limiting block 53. The limiting block 53 has a hemispherical structure design. The inner wall of the connecting shell 3 has a limiting groove corresponding to the shape of the limiting block 53. Under this action, the limiting block 53 and the spring 52 can limit the connecting column 42, so that the connecting column 42 will not be displaced unnecessarily during use, making the connecting column 42 more stable during use. This reduces the possibility of accidental movement of the connecting shell 3 and other structures due to equipment vibration or external impact, and enhances its reliability. When the operator rotates the connecting column 42 to disassemble the connecting shell 3 and other structures, the limiting block 53 will compress the spring 52 and disengage from the limiting groove on the inner wall of the connecting shell 3, thereby releasing the axial constraint on the connecting column 42, making it easier for the operator to disassemble the connecting shell 3, the blocking shell 6, and the support block 7.

[0024] It is worth noting that the technical features such as the test mechanism body 1 proposed in this technical solution should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.

[0025] Working principle: First, when the staff needs to perform a balance test on the fan blades, the baffle shell 6 effectively reduces the impact of the surrounding wind on the fixed turntable 8, reducing external interference. The specially shaped support block 7 guides and straightens the wind entering the baffle shell 6, ensuring even distribution of the wind around the fan blades, reducing airflow turbulence, and minimizing the impact of airflow impact on the fan blades, thus improving test accuracy and reliability. When it is necessary to disassemble the connecting shell 3 and the baffle shell 6, rotating the fixed block 43 180 degrees to align it with the sliding groove 41 causes the limiting block 53 to compress the spring 52, disengaging it from the limiting groove on the inner wall of the connecting shell 3, thereby releasing the axial constraint on the connecting column 42. Subsequently, moving the connecting shell 3 upwards releases the fixing effect on the baffle shell 6 and the support block 7, reducing the staff's operation time and labor intensity, ensuring the accuracy and safety of the disassembly process, and improving disassembly efficiency. Furthermore, the limiting block 53 and the spring 52 limit the connection column 42, effectively reducing unnecessary displacement during use and enhancing operational stability.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fan blade balance testing device, comprising a testing mechanism body (1) and a fixed turntable (8) disposed on its surface, characterized in that, Also includes: Electric push rods (2) are set on both sides of the test mechanism body (1). The output shaft of the electric push rod (2) is provided with a connecting shell (3). One end of the connecting shell (3) is fixedly connected to a blocking shell (6) that blocks the surrounding wind by its own shape. The bottom of the blocking shell (6) is fixed with a support block (7) that guides the airflow by its own shape. A quick-release mechanism (4) is provided in the inner cavity of the connecting shell (3) to disassemble the connecting shell (3), the blocking shell (6), and the support block (7). The inner cavity of the quick-release mechanism (4) is provided with a limit mechanism (5).

2. The fan blade balance testing device according to claim 1, characterized in that: The quick-release mechanism (4) includes a sliding groove (41) on the inner wall of the connecting shell (3), a connecting column (42) is rotatably connected to the inner wall of the connecting shell (3), and a fixing block (43) is fixedly connected to the surface of the connecting column (42).

3. The fan blade balance testing device according to claim 2, characterized in that: The limiting mechanism (5) includes a mounting groove (51) formed on the surface of the connecting column (42), and a spring (52) is fixedly connected to the inner wall of the mounting groove (51), and a limiting block (53) is fixedly connected to one end of the spring (52).

4. The fan blade balance testing device according to claim 1, characterized in that: The number of support blocks (7) is several, and they are arranged in a circular array with the bottom center of the blocking shell (6).

5. The fan blade balance testing device according to claim 3, characterized in that: The limiting block (53) is designed with a hemispherical structure.

6. The fan blade balance testing device according to claim 1, characterized in that: The barrier shell (6) is designed as a hollow cylindrical structure.

Images