Loading table for uniform load test of planet gear of wind power main gear box

Abstract

The utility model relates to the technical field of wind power equipment testing, in particular to a wind power main gear box planet wheel uniform load test loading table which comprises a main body, and the top of the main body is fixedly connected with a rotating assembly and a movable loading assembly. According to the utility model, the motor is used for driving the rotating wheel and the transmission wheel to rotate in a meshed manner, so that the rotating rod can drive the planet wheel to freely rotate, the actual working condition is accurately simulated, and the freely rotating planet wheel can automatically adjust the rotating speed and the torque distribution according to the change of the load; the planetary gears can share input torque more uniformly, damage caused by overload of individual planetary gears is avoided, the multiple first telescopic rods are used for applying loads to the planetary gears, the loads can be uniformly distributed at different positions of the planetary gears, local overload caused by single-point loading is avoided, and the load distribution efficiency is improved. The uniformly distributed load can simulate the stress condition of the planet wheel in actual operation more truly.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment testing technology, specifically a load-sharing test platform for planetary gears of wind turbine main gearboxes. Background Technology

[0002] In wind power generation systems, the main gearbox is one of the key components, and the load-sharing performance of its planetary gears directly affects the reliability and efficiency of the entire system.

[0003] Existing test loading devices typically employ single-point loading or simple multi-point loading methods. Due to unreasonable distribution of loading points or limited precision of the loading equipment, there is a significant deviation between the actual applied load and the theoretical design value. This insufficient loading precision leads to increased error in the test results, failing to accurately reflect the stress state and load-sharing performance of the planetary gear under actual working conditions, thus affecting the evaluation of the overall performance of the gearbox. Furthermore, most existing test loading platforms can only apply a single type of load, failing to realistically simulate different working conditions. Therefore, a wind turbine main gearbox planetary gear load-sharing test loading platform is needed to address these issues. Utility Model Content

[0004] To address the problems raised in the background section, existing testing loading devices typically employ single-point loading or simple multi-point loading methods. Due to unreasonable distribution of loading points or limited precision of the loading equipment, the actual applied load deviates significantly from the theoretical design value. This insufficient loading precision leads to increased error in the test results, failing to accurately reflect the stress state and load-sharing performance of the planetary gear under actual working conditions. Consequently, it affects the evaluation of the overall performance of the gearbox. Furthermore, most existing testing loading platforms can only apply a single type of load, failing to realistically simulate different working conditions. The purpose of this invention is to provide a load-sharing test platform for planetary gears in wind turbine main gearboxes to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A wind turbine main gearbox planetary gear load distribution test loading platform includes a main body, on the top of which a rotating component and a moving loading component are fixedly connected;

[0007] The rotating assembly includes a mounting plate, a motor is mounted on the side of the mounting plate, a rotating wheel is fixedly connected to the output end of the motor, a transmission wheel is meshed with the side of the rotating wheel, a rotating rod is fixedly connected inside the transmission wheel, and a planetary gear body is mounted on the side of the rotating rod.

[0008] The mobile loading component includes a base, the base having a groove inside, a slider slidably connected inside the groove, a support frame fixedly connected to the top of the slider, a first telescopic rod installed inside the support frame, and a loading end fixedly connected to the output end of the first telescopic rod.

[0009] As a preferred embodiment of this utility model, a bearing seat is fixedly connected to the side of the mounting plate, and the first telescopic rod extends into the interior of the bearing seat.

[0010] As a preferred embodiment of this utility model, three first telescopic rods and loading ends are provided, and a support plate is fixedly connected to the side of the base.

[0011] As a preferred embodiment of this utility model, a second telescopic rod is installed inside the support plate, and a push block is fixedly connected to the output end of the second telescopic rod.

[0012] As a preferred embodiment of this utility model, the main body includes a base frame, and the base frame is made of aluminum alloy.

[0013] As a preferred embodiment of this utility model, a top frame is fixedly connected to the top of the base frame, and a fixing plate is fixedly connected to the side of the top frame.

[0014] As a preferred embodiment of this utility model, the side of the fixing plate is fixedly connected with a crash bar, and there are four fixing plates and two crash bars.

[0015] As a preferred embodiment of this utility model, a support rod is fixedly connected to the bottom of the base frame, and a foot is fixedly connected to the bottom of the support rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this invention, by using a motor to drive the rotating wheel and transmission wheel to mesh and rotate, the rotating rod can drive the planetary gears to rotate freely, accurately simulating actual working conditions. The freely rotating planetary gears can automatically adjust their speed and torque distribution according to load changes. Because the planetary gears can rotate freely on the planet carrier, they can distribute the input torque more evenly, avoiding damage caused by overload of individual planetary gears. The freely rotating planetary gears can reduce energy loss caused by friction and uneven loads during operation. Due to the more even load distribution, the meshing of the planetary gears is more stable, thereby improving the transmission efficiency of the entire gearbox.

[0018] 2. In this utility model, by using multiple first telescopic rods to apply load to the planetary gear, the load can be evenly distributed at different positions of the planetary gear, avoiding local overload caused by single-point loading. This evenly distributed load can more realistically simulate the force situation of the planetary gear in actual operation. Multi-point loading can reduce measurement errors caused by load concentration and ensure the accuracy of test results. The first telescopic rods can quickly adjust the magnitude and direction of the load to achieve dynamic loading. This dynamic loading capability can simulate the force changes of the planetary gear under different operating conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the rotating component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mobile loading component of this utility model;

[0022] Figure 4 This is a schematic diagram of the support component structure of this utility model.

[0023] In the diagram: 1. Main body; 101. Base frame; 102. Support rod; 103. Foot; 104. Top frame; 105. Fixing plate; 106. Anti-collision bar; 2. Rotating assembly; 201. Mounting plate; 202. Motor; 203. Rotating wheel; 204. Transmission wheel; 205. Rotating rod; 206. Planetary gear body; 207. Bearing seat; 3. Moving loading assembly; 301. Base; 302. Slide groove; 303. Slider; 304. Bearing frame; 305. First telescopic rod; 306. Loading end; 307. Support plate; 308. Second telescopic rod; 309. Push block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0026] The wind turbine main gearbox planetary gear load distribution test loading platform includes a main body 1, with a rotating component 2 and a moving loading component 3 fixedly connected to the top of the main body 1.

[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the rotating assembly 2 includes a mounting plate 201, a motor 202 mounted on the side of the mounting plate 201, a rotating wheel 203 fixedly connected to the output end of the motor 202, a transmission wheel 204 meshing with the side of the rotating wheel 203, a rotating rod 205 fixedly connected inside the transmission wheel 204, and a planetary gear body 206 mounted on the side of the rotating rod 205. The moving loading assembly 3 includes a base 301, a groove 302 formed inside the base 301, a slider 303 slidably connected inside the groove 302, a support frame 304 fixedly connected to the top of the slider 303, and a first extension mechanism mounted inside the support frame 304. The first telescopic rod 305 has a fixed connection between its output end and the loading end 306. A motor 202 drives the rotating wheel 203 and the transmission wheel 204 to mesh and rotate, allowing the rotating rod 205 to drive the planetary gears to rotate freely. This accurately simulates actual working conditions. The freely rotating planetary gears can automatically adjust their speed and torque distribution according to load changes. Because the planetary gears can rotate freely on the planet carrier, they can distribute the input torque more evenly, avoiding damage caused by overload of individual planetary gears. The freely rotating planetary gears also reduce energy loss due to friction and uneven loads during operation. Due to the more even load distribution and smoother meshing of the planetary gears, the overall transmission efficiency of the gearbox is improved.

[0028] The mounting plate 201 has a bearing seat 207 fixedly connected to its side. The first telescopic rod 305 extends into the bearing seat 207. Three first telescopic rods 305 and loading ends 306 are provided. The base 301 has a support plate 307 fixedly connected to its side. By using multiple first telescopic rods 305 to apply load to the planetary gear, the load can be evenly distributed at different positions of the planetary gear, avoiding local overload caused by single-point loading. This evenly distributed load can more realistically simulate the stress situation of the planetary gear in actual operation. Multi-point loading can reduce measurement errors caused by load concentration and ensure the accuracy of test results. The first telescopic rods 305 can quickly adjust the magnitude and direction of the load to achieve dynamic loading. This dynamic loading capability can simulate the stress changes of the planetary gear under different operating conditions.

[0029] In this embodiment, as Figure 1 , Figure 3 and Figure 4As shown, a second telescopic rod 308 is installed inside the support plate 307. A push block 309 is fixedly connected to the output end of the second telescopic rod 308. The main body 1 includes a base frame 101, which is made of aluminum alloy. A top frame 104 is fixedly connected to the top of the base frame 101. A fixing plate 105 is fixedly connected to the side of the top frame 104. A crash bar 106 is fixedly connected to the side of the fixing plate 105. There are four fixing plates 105 and two crash bars 106. A support rod 102 is fixedly connected to the bottom of the base frame 101. A foot 103 is fixedly connected to the bottom of the support rod 102. The push block 309 can be moved by extending and retracting the second telescopic rod 308. The freely movable loading mechanism can be adjusted according to the specific position and size of the planetary gear to ensure that the loading point can be accurately aligned with the key stress positions of the planetary gear. This flexibility allows the loading mechanism to adapt to different models and sizes of planetary gears, improving the versatility of the testing equipment.

[0030] The working process of this utility model is as follows: When the wind turbine main gearbox planetary gear load equalization test loading platform designed in this scheme is in operation, the planetary gear body 206 is installed on the rotating rod 205. The motor 202 drives the rotating wheel 203 and the transmission wheel 204 to mesh and rotate, thereby allowing the rotating rod 205 to drive the planetary gears to rotate freely. Since the planetary gears can rotate freely on the planet carrier, they can distribute the input torque more evenly and avoid damage caused by overload of individual planetary gears. Subsequently, the loading ends 306 on multiple first telescopic rods 305 are used to apply loads to the planetary gears. Not only can different loads be applied, but the extension and retraction of the second telescopic rod 308 can also move the push block 309 to move the loading mechanism, improving the flexibility of the loading mechanism.

[0031] 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 load-sharing test platform for planetary gears of a wind turbine main gearbox, comprising a main body (1), characterized in that: The top of the main body (1) is fixedly connected to a rotating component (2) and a moving loading component (3); The rotating assembly (2) includes a mounting plate (201), a motor (202) is mounted on the side of the mounting plate (201), a rotating wheel (203) is fixedly connected to the output end of the motor (202), a transmission wheel (204) is meshed with the side of the rotating wheel (203), a rotating rod (205) is fixedly connected inside the transmission wheel (204), and a planetary gear body (206) is mounted on the side of the rotating rod (205). The mobile loading component (3) includes a base (301), the base (301) has a groove (302) inside, a slider (303) is slidably connected inside the groove (302), a support frame (304) is fixedly connected to the top of the slider (303), a first telescopic rod (305) is installed inside the support frame (304), and a loading end (306) is fixedly connected to the output end of the first telescopic rod (305).

2. The wind turbine main gearbox planetary gear load-sharing test loading platform according to claim 1, characterized in that, The mounting plate (201) is fixedly connected to a bearing seat (207) on its side, and the first telescopic rod (305) extends into the interior of the bearing seat (207).

3. The wind turbine main gearbox planetary gear load-sharing test loading platform according to claim 1, characterized in that, The first telescopic rod (305) and loading end (306) are provided in three parts, and the support plate (307) is fixedly connected to the side of the base (301).

4. The wind turbine main gearbox planetary gear load-sharing test loading platform according to claim 3, characterized in that, The support plate (307) is equipped with a second telescopic rod (308), and a push block (309) is fixedly connected to the output end of the second telescopic rod (308).

5. The wind turbine main gearbox planetary gear load-sharing test loading platform according to claim 1, characterized in that, The main body (1) includes a base frame (101), which is made of aluminum alloy.

6. The wind turbine main gearbox planetary gear load-sharing test loading platform according to claim 5, characterized in that, The top of the base frame (101) is fixedly connected to the top frame (104), and the side of the top frame (104) is fixedly connected to the fixing plate (105).

7. The wind turbine main gearbox planetary gear load-sharing test loading platform according to claim 6, characterized in that, The side of the fixing plate (105) is fixedly connected with a crash bar (106), and there are four fixing plates (105) and two crash bars (106).

8. The wind turbine main gearbox planetary gear load-sharing test loading platform according to claim 5, characterized in that, The bottom of the base frame (101) is fixedly connected to a support rod (102), and the bottom of the support rod (102) is fixedly connected to a foot (103).

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