Connecting tool for testing wind power gear box with crowned tooth structure
The wind turbine gearbox connecting fixture with a drum-shaped tooth structure solves the problem of easy damage of the connecting fixture in the prior art, realizes efficient transmission and long life detection, and reduces costs and energy consumption.
Patent Information
- Application Number
- CN202423040032.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing wind turbine gearbox connection tooling has a high risk of damage during the transmission of large torque and long testing processes, resulting in increased costs and reduced testing efficiency.
A connecting fixture with a drum-shaped tooth structure is used, including a mounting plate, a connecting seat, a connecting gear and a gear ring. Torque and speed are transmitted through gear meshing, and a rigid connection is achieved through bolts and locating pins to achieve efficient transmission and stable meshing.
It improves the load-bearing capacity and service life of the connecting tooling, reduces noise, enhances installation adaptability, reduces energy consumption and costs, and is suitable for the detection of gearboxes of various specifications.
Smart Images
Figure CN223330990U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gear box testing, and more specifically, relates to a connecting tool for testing a wind power gear box with a drum-shaped tooth structure. Background Art
[0002] With the continuous advancement of sustainable development, various renewable energy technologies are booming. Wind energy is a representative example of this, effectively contributing to improving the energy structure and protecting the ecological environment. During wind turbine power generation, the wind turbine gearbox converts the blade speed and torque into the state required to drive the generator, effectively transferring kinetic energy to the generator. This critical component directly impacts the proper operation of wind power systems.
[0003] Wind turbine gearboxes primarily operate at high altitudes, requiring the use of large equipment for installation and maintenance. This is time-consuming and difficult, consuming significant time and financial costs. Therefore, wind turbine gearboxes must undergo multiple tests, including load testing, thermal balance testing, and efficiency testing, before leaving the factory to ensure their quality. This leads to a problem: the connecting fixture must transmit the high torque generated by the auxiliary equipment to the target gearbox, completing a lengthy and diverse testing process. During this process, the connecting fixture is subjected to heavy loads and prolonged operation, resulting in a relatively high risk of damage, which can increase product costs and reduce testing efficiency. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the utility model provides a connection tool for testing a wind turbine gearbox with a drum-shaped tooth structure, which can normally transmit the simulated driving torque and speed to the target wind turbine gearbox, and has the advantages of good service life, working performance and adaptability.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a connecting tool for testing a wind turbine gearbox with a drum-shaped tooth structure, comprising a mounting plate, a connecting seat is provided on the inner side of the mounting plate, a connecting gear is provided on one side of the connecting seat, a gear ring is provided on the surface of the connecting gear, and a limiting plate is also provided on the outer side of the gear ring which is installed on the surface of the connecting gear. The mounting plate, the connecting seat and the connecting gear are all arranged in pairs on both sides, and the gear ring is engaged with two connecting gears at the same time; the surface of the connecting gear is provided with a drum-shaped tooth structure, and the drum-shaped tooth structure can be fully engaged with the gear ring.
[0006] Preferably, the connecting gear and the ring gear form a gear-ring meshing area.
[0007] Preferably, the mounting plate, connecting seat, connecting gear and gear ring are coaxial.
[0008] Preferably, the mounting plate and the connecting seat, as well as the connecting seat and the connecting gear are rigidly connected via bolts and positioning pins.
[0009] Preferably, the limiting plates are evenly distributed on the left and right end surfaces of the gear ring, and can cover the gear and gear ring meshing area of the corresponding projection area.
[0010] Preferably, a plurality of mounting through holes are provided on the surfaces of the mounting plates on both sides.
[0011] The utility model provides a connection tool for testing a wind turbine gearbox with a drum-shaped tooth structure, which has the following beneficial effects:
[0012] 1. Good tooling load capacity and long service life: Compared with straight teeth of the same specification, drum-shaped gears have longer tooth surface length and relatively smooth transition, which effectively improves the load distribution on the contact surface and alleviates the edge extrusion and stress concentration problems caused by straight teeth;
[0013] 2. The drum-shaped gear structure has high transmission efficiency, stable transmission and low noise;
[0014] 3. Good installation adaptability: The end surface of the mounting plate has mounting holes distributed circumferentially with different diameters, which can adapt to wind turbine gearboxes of various specifications;
[0015] 4. Reduce energy consumption and costs, and can be used for special tests: the end face of the connecting gear is arranged with weight reduction holes and special test connection holes. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structural composition of the connecting tooling of the present utility model.
[0017] Figure 2 This is a schematic diagram of the drum-shaped tooth of the present invention (cross section in the gear tooth width direction).
[0018] Figure 3 It is a schematic diagram of the end face of the gear ring in the meshing state of the utility model.
[0019] In the figure, 1. mounting plate; 2. connecting seat; 3. connecting gear; 4. ring gear; 5. limiting plate; 6. gear and ring gear meshing area; 7. drum-shaped tooth structure; 8. mounting through hole. DETAILED DESCRIPTION
[0020] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0021] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0023] See also Figures 1 to 3 The utility model provides a technical solution: a connection tool for testing a wind turbine gearbox with a drum-shaped tooth structure 7, a connection tool for testing a wind turbine gearbox, such as Figure 1 The mounting plate 1 comprises a connecting plate 2, a connecting gear 3, a ring gear 4, and a limiting plate 5. The connecting gear 3 is drum-shaped along the tooth length direction. The mounting plate 1, connecting plate 2, and connecting gear 3 are arranged in pairs on opposite sides. The ring gear 4 meshes with both connecting gears 3 simultaneously. The mounting plate 1, connecting plate 2, connecting gear 3, and ring gear 4 are coaxial, and the limiting plates 5 are evenly distributed circumferentially on both end faces of the ring gear 4. Except for the limiting plate 5, all other parts are arranged along the same axis, with the ring gear 4 located in the center. From the inside out, the connecting gear 3, connecting plate 2, and mounting plate 1 are arranged facing each other.
[0024] The connecting gear 3 has a drum-shaped tooth structure 7 in the tooth width direction; the limit plates 5 are evenly distributed on the left and right end surfaces of the gear ring 4 and can cover the meshing area of the gear and gear ring 4 in the corresponding projection area; the mounting plate 1 and the connecting seat 2, and the connecting seat 2 and the connecting gear 3 are rigidly connected by bolts + positioning pins, and the connecting gear 3 is meshed with the gear ring 4 (the drum-shaped teeth mesh with the straight teeth); according to the specifications of the power source and the target test gearbox, the corresponding mounting through holes 8 are selected on the end faces of the mounting plate 1 to complete the bolt connection.
[0025] Specific usage and function of this embodiment: Under ideal conditions, there is no relative movement between the various components of the tooling during operation, and they are regarded as a rigid whole. When the power source starts to run, the speed and torque are transmitted through the connecting tooling in the following order: power source - input end mounting plate 1 - input end connecting seat 2 - input end connecting gear 3 - gear ring 4 - output end connecting gear 3 - output end connecting seat 2 - output end mounting plate 1 - target test gearbox. The staff can complete the connection by selecting the appropriate size mounting holes on the mounting plate 1 on both sides of the tooling through the auxiliary equipment output end and the target wind power gearbox input end, and the teeth of the connecting gear 3 are drum-shaped tooth structures 7, such as Figure 2 , meshing with the gear ring 4 to transmit the input torque and speed simulating the actual working conditions to the target gearbox, and the drum-shaped tooth structure 7 is convenient for tooling installation; the projection area of the limit plate 5 can cover the corresponding gear ring 4 meshing area (compared with the straight teeth of the same specification, the drum-shaped tooth gear has a longer tooth surface length and a relatively smooth transition, which effectively improves the load distribution on the contact surface and can also alleviate the edge extrusion and stress concentration problems caused by the straight teeth). Figure 3 , assisting in axially limiting the connection gear 3; a reserved hole on the end face of the connection gear 3 can meet the unconventional connection requirements in special tests. Overall, it can normally transmit the simulated driving torque and speed to the target wind turbine gearbox, and has excellent service life, working performance, and adaptability.
[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A connection fixture for testing a wind turbine gearbox with a drum-shaped tooth structure, comprising a mounting plate (1), characterized in that: A connecting seat (2) is provided on the inner side of the mounting plate (1), a connecting gear (3) is provided on one side of the connecting seat (2), a gear ring (4) is provided on the surface of the connecting gear (3), and a limiting plate (5) is provided on the outer side of the gear ring (4) and is mounted on the surface of the connecting gear (3). The mounting plate (1), the connecting seat (2), and the connecting gear (3) are all arranged in pairs on both sides facing each other, and the gear ring (4) is meshed with two connecting gears (3) at the same time; a drum-shaped tooth structure (7) is provided on the surface of the connecting gear (3), and the drum-shaped tooth structure (7) can be fully meshed with the gear ring (4).
2. The wind turbine gearbox testing connection fixture with a drum-shaped tooth structure according to claim 1, characterized in that: A gear-ring meshing area (6) is located between the connecting gear (3) and the gear ring (4).
3. The wind turbine gearbox testing connection fixture with a drum-shaped tooth structure according to claim 1, characterized in that: The mounting plate (1), the connecting seat (2), the connecting gear (3), and the gear ring (4) are coaxial.
4. The wind turbine gearbox testing connection fixture with a drum-shaped tooth structure according to claim 1, characterized in that: The mounting plate (1) and the connecting seat (2), as well as the connecting seat (2) and the connecting gear (3) are rigidly connected via bolts and positioning pins.
5. The wind turbine gearbox testing connection fixture with a drum-shaped tooth structure according to claim 1, characterized in that: The limiting plates (5) are evenly distributed on the left and right end surfaces of the gear ring (4), and can cover the meshing area of the gear ring (4) corresponding to the projection area.
6. The wind turbine gearbox testing connection fixture with a drum-shaped tooth structure according to claim 1, characterized in that: A plurality of mounting through holes (8) are provided on the surfaces of the mounting plates (1) on both sides.